Separation of solid materials using liquids or using pneumatic tables or jigs and magnetic or electrostatic separation of solid materials from solid materials or fluids and separation by high-voltage electric fields (B03)

B03            Separation of solid materials using liquids or using pneumatic tables or jigs; magnetic or electrostatic separation of solid materials from solid materials or fluids; separation by high-voltage electric fields(10624)

Electrostatic precipitator // 2627792
FIELD: electricity.SUBSTANCE: electrostatic precipitator includes a housing, precipitating and corona electrodes and high voltage sources. The elements of the corona electrode, depending on the specific electrical resistance of the dust, are made of a belt with a width of 15-400 mm with formed corona protrusions. With a specific electrical resistance of the dust layer on the precipitating electrodes of less than108 Omm, the belt width is less than 100 mm, and with a specific electrical resistance of the dust layer more than 108 Omm, the belt width is 100-400 mm, the elements of the corona electrodes can have combinations of different widths.EFFECT: providing the possibility to take into account the value of the specific electrical resistance of the dust entering the electrostatic precipitator and the change in the specific electrical resistance of the dust on the precipitating electrodes along the length of the electrostatic precipitator, and the degree of gas purification by the electrostatic precipitator.2 cl, 3 dwg

Device for oil wastes recycling // 2627784
FIELD: oil and gas industry.SUBSTANCE: device for oil waste recycling contains scroll conveyor body, a auger placed in it, a heater, an additional steam generator. The body of the scroll conveyor in the upper part is made in the form of a rectangular box, the bottom wall of which is made in the form of a porous plate with a porosity of 0.2-0.6, on which a horizontal tube bundle is installed. In the lower part, the body is made in the form of two semi-cylindrical slots installed in parallel and connected along a generatrix of a cylindrical surface. The auger is made in the form of two spirals, each of which is installed in a semicylindrical slot. On the axis of each spiral there is a pipe with a porous wall, which is connected to the steam generator with its input. The output of each pipe with a porous wall is connected to a rectangular box. The heater in the form of a tube bundle is installed from the outside on the conveyor body and is connected to the output of a horizontal tube bundle with its input.EFFECT: reduction of hydrocarbon losses during oil wastes recycling, reduced harmful discharges to environment.4 dwg, 2 ex

Recovery method of gold factories waste pulpes // 2627141
FIELD: oil and gas industry.SUBSTANCE: method involves saturation of the waste pulps with electrolytic gases and electroflotation in the electroflotation strings. The resulting froth pulp is sent to the hydrometallurgical processing. The depleted secondary residues, oxygenated and activated during the electroflotation, containing the underoxidized suspended mineral particles, are subjected to thickening. The sewages formed after the thickening is subjected to electrosorption in two stages. Initially, the industrial precious metals and toxic elements for biota are isolated. At the second stage, the colloidal gold is sorbed with the help of anion exchangers, prepared in CN- and OH- forms. The final solution obtained after the electrosorption is conditioned by pH and after addition of the appropriate complexing agents, it is directed to mine and/or heap leaching.EFFECT: costs reduction.1 dwg, 1 ex

ethod of separation of particles of ground rock sample and polarization separator for its implementation // 2626862
FIELD: mining engineering.SUBSTANCE: separation method is based on the differences in particle responses to the applied electrical field supplied from the source to the electrodes formed by alternating conductive bands of different polarity located between the two dielectric substrates, one of which attracts the polarizable rock particles that separate after the voltage is cut off. To isolate a plurality of sample fractions, a constant polarizing electrical field of a high potential gradient is used, adjustable in magnitude, from a lower value to a larger one by changing the high voltage supplied by the source to said electrodes. The separator contains a system of electrodes, charged by opposite poles by the voltage source, in the form of two branches of interpenetrating, non-intersecting conducting alternating bands forming a flat lattice located between immobile dielectric substrates, one of which attracts polarizable rock particles. Each of the branches is connected to the opposite pole of an adjustable constant high voltage source that is included in the circuit containing the voltage regulator, the generator, the voltage multiplier and its meter.EFFECT: more detailed separation of conductive and non-conductive rock particles, simplification of separation of rock particles, prepared for chemical analysis in laboratory conditions, is provided.6 cl, 3 dwg

ethod of two-current regenerating corona electrodes and electrofilter for its implementation // 2626473
FIELD: electricity.SUBSTANCE: group of inventions refers to the electric dry cleaning of non-corrosive gases from dust with a temperature of up to 425°C in non-ferrous and ferrous metallurgy, other industries. In carrying out the method, the corona elements are shaken horizontally by the hammer of the shaking mechanism and the anvil of the corona electrode. The corona elements are shaken in the two-cycle mode. The pulse of the shaking stroke of the second cycle is directed towards the shaking stroke pulse of the first cycle. The corona elements are regenerated in the resonance mode, in which the natural frequency of the corona elements coincides with a frequency inversely proportional to the time interval between the hammer stroke of the shaking mechanism and the jackhammer stroke on the anvils of the corona electrode. The electrostatic precipitator includes corona electrodes consisting of vertical corona elements stretched by loads between the horizontal support and guide frames, an anvil plate at both ends installed in the middle of the corona elements, a shaking mechanism with a hammer. The design is equipped with an additional hammer at the opposite end of the plate and is in contact with the anvil.EFFECT: increasing the regeneration efficiency of the electrostatic precipitator, the temperature gap between the plate and the corona elements is ensured, which makes it easy to mount or dismantle the elements in the event of repair or replacement.5 cl, 2 dwg
Drum for the magnetic separator and the method of its manufacture // 2626082
FIELD: machine engineering.SUBSTANCE: magnetic separator drum contains a cylinder of ferromagnetic material closed at its ends with two flanges that have central rods equipped with bearing and clamping points, on the outer side of the cylinder, a plurality of longitudinal grooves are formed, accommodating permanent magnets arranged in the form of longitudinal rows of one polarity along the magnetic arc approximately 130-160° with alternating polarity NS between adjacent rows. The central rods are located along the longitudinal axis of the cylinder. The cylinder is located within the shell of a non-magnetic material, closed at its ends by two flanges, which have flanged bushings provided with places for mentioned bearings. At least one of the flanged bushings is also provided with means for receiving from the motor of motion to drive the sheath in the form of a gear wheel. The length of one dipole of the magnetic circuit is in the interval between 100 and 150 mm, Is preferably 127 mm. The method of manufacturing a drum for a magnetic separator includes the following steps: a) welding of the flange-covers at the ends of the cylinder; B) fixing the rods around the center of the flanges; C) machining of the cylinder on a lathe to achieve precise alignment of the rods to the outside of the cylinder and the formation of bearing and clamping points on the rods; D) milling of longitudinal grooves on the outside of the cylinder; E) fixing magnets in the grooves; F) the introduction of a cylinder inside the shell and the hermetic mounting of the flanges of the latter. In step d), the grooves are formed at a distance so that the length of one dipole of the magnetic circuit is between 100 and 150 mm.EFFECT: improving separation efficiency.19 cl, 3 dwg
ethod of froth flotation (versions) // 2626081
FIELD: chemistry.SUBSTANCE: method of froth flotation for extracting at least one precious mineral from the mineral ore body, which comprises: adding an enriching amount of collector at least at one stage of froth flotation process. The collector comprises primary or secondary organic ammonium salt of the organic sulfur-containing acid, selected from the group consisting of hydrocarbyl dithiophosphoric acids, hydrocarbyl monothiophosphoric acids, mercaptobenzothiazoles, hydrocarbyl xanthogenic acids, hydrocarbyl thioglycolic acids and hydrocarbyl trithiocarbonic acids. The collector comprising primary or secondary organic ammonium salt of C1-C5 hydrocarbyl dithiocarbamic acid is used using one of the versions of method implementation.EFFECT: increased efficiency of the flotation extraction of precious minerals, reduced hazardous exposure on personnel and environment.25 cl, 1 tbl, 5 ex

Tool for laparoscopy // 2625581
FIELD: medicine.SUBSTANCE: device comprises a safety circuit comprising a detection means to detect presence of a hazardous condition associated with an electric shock, a monostable multivibrator to drive a switching means to turn off a DC power source for a predetermined interruption duration upon detection of a hazardous condition associated with an electric shock, and subsequent cyclic reconnection and disconnection of the direct current source until the dangerous state is eliminated. The monostable multivibrator is designed to attempt to reconnect the DC power supply during the connection and shutdown cycle for a duration less than the predetermined interruption duration. The monostable multivibrator is also configured to restore a continuous supply of direct current to the said circuit prior to the next occurrence of a hazardous condition associated with an electric shock or until completion of the said procedure.EFFECT: efficiency of ionization device control and level of surgical procedures safety are increased.8 cl, 7 dwg
Prevention of foam concentration in the method of reverse flotation for calcium carbonate cleaning // 2625409
FIELD: chemistry.SUBSTANCE: composition contains at least one quaternary ammonium compound that is a collector in the reverse flotation of magnesium minerals from calcium carbonate, at least one antifoaming agent and at least one solvent. The defoamer is selected from the group consisting of alkyl benzenes and at least one ethoxylated alcohol corresponding to the formulas R-O-(A-O)n-H (6) and R-O-(A-O)n(B-O)m-H (7), where n is the number of 1-30, m is the number 1-30, A is C2-C4Alkylene group, B is C2-C4Alkylene group, R is C6-C30 Hydrocarbon group. The amount of component A is 20-60 wt %, the amount of component B is 5-25 wt % and the component C is 15-75 wt %. This composition is used as a flotation reagent in the reverse flotation of silicate minerals of magnesium from calcium carbonate ore. A method for the reverse flotation of silicate magnesium minerals from calcium carbonate ore comprises adding the above composition to a flotation cell containing magnesium silicate minerals and calcium carbonate ore, then passing air through the flotation cell and removing the silicate magnesium minerals obtained in this way by the foam.EFFECT: increasing the efficiency of flotation of silicate minerals of magnesium from calcium carbonate ore.21 cl, 9 tbl, 4 ex
ethod for flotation of refractory complex ores of noble metals // 2624497
FIELD: mining engineering.SUBSTANCE: method of flotation of refractory complex ores of noble metals includes grinding refractory complex ore of noble metals down to 0.1-0.5 mm, directing it to gravitational differentiation with the formation of conditionally called "heavy", "intermediate" and "light" fractions having different physical properties in terms of density, size and morphology of the disclosed particles and mineral phases, and flotation of these fractions in separate cycles to obtain a combined gold-containing sulphide concentrate. Gravitational differentiation is done on screw units with a large area of the separation surface and applying centrifugal forces. With the gravitational differentiation, the outputs of the "heavy", "intermediate" and "light" fractions are maintained close to the percentage ratio of 10:45:45, respectively. The "heavy", "intermediate" and "light" fractions of gravitational differentiation enter flotation in separate cycles in a closed circuit with basic and control operations. If necessary, the "heavy" fraction of gravitational differentiation is re-milled prior to the flotation. If necessary, the combined gold-containing sulphide concentrate is recleaned. The flotation of fractions of gravity differentiation is carried out at a pulp pH of 5.5, a pulp density of 30% solid, a liquid glass rate of 400-500 g/t, a butyl xanthate of 250-300 g/t, pine oil of 70-80 g/t, polyacrylamide when flotation of the "light" fraction is 8-10 g/t with a dosage in control operations twice smaller than the amount of collector and foaming agent, and in recleaning - three times smaller than the quantity of reagents.EFFECT: increase of efficiency of enrichment of refractory complex ores of noble metals with an increase of qualitative and quantitative parameters of processing and reduction of losses of valuable components.7 cl, 2 ex
ethod for producing iron powder from lubrication oil // 2623946
FIELD: metallurgy.SUBSTANCE: method involves heating the lubricating oil, which contains dispersion iron powder particles up to a temperature of 65-90°C and subsequent magnetic separation by feeding the heated lubricating oil to the magnetic separator in the opposite direction to the magnet rotation, followed by separation and collection of dispersion iron powder particles coated with an oil film. The dispersion particles are washed with a 3-8% aqueous solution of industrial detergent heated up to 80-90°C for 15-20 minutes at constant stirring, left to stand for 30-40 minutes, washed with hot water at a temperature of 80-90°C and dried at a temperature of 90-110°C to obtain an iron powder in the form of dispersion particles.EFFECT: method provides a reduction in the energy intensity of the process, reducing the labour intensity of the process of obtaining iron powder.2 ex
ethod for flotation separating minerals of heavy metals // 2623851
FIELD: chemistry.SUBSTANCE: method uses a selective collector M-TF, which is a mixture of dithiophosphate and thionocarbamate with a variable ratio of dithiophosphate and thionocarbamate depending on the proportion of pyrite and pyrrhotite in the sulphide ore, on the ratios of copper sulfides and sphalerite varieties in a collective concentrate and selective flotation operations. In the samples studied, copper sulfides are represented by primary and secondary minerals, as well as minerals from the group of faded ores. In the method for the flotation separating minerals of pyrrhotite-pyrite-containing ores as a collector, a combination of butyl xanthate and M-TF reagent is used at variable fraction ratio of the M-TF collector components in various flotation cycles.EFFECT: decreasing the flotation of pyrite, pyrrhotite, increasing the flotation activity of the main minerals of copper - chalcopyrite, bornite and creating conditions for active flotation of tennantite, as well as mineral associations of gold.3 tbl

Flotation machine rotor // 2623408
FIELD: machine engineering.SUBSTANCE: group of inventions relates to devices used for mixing the slurry located in flotation machines. They can be used to extract particles of material, such as ores, minerals, metals or other material contained within the solid substance being in suspension in a liquid slurry or pulp. The flotation machine has at least one flotation cell, each of which comprises a reservoir large enough to accommodate slurry containing liquid mixed with at least one solid material; and a rotor disposed in the reservoir with possibility of rotation to stir the slurry, contributing to the bubbles formation. The rotor includes a body having an inner channel and a lower opening; several inner blades attached to the body and positioned therein adjacent to the inner channel. The inner blades at least partially form several connecting channels inside the body connected to the inner channel and each of which is formed within the body, extending from the inlet, mating with an internal channel inside the body to the outlet at the outer surface of the body, so providing the passage of slurry drawn into the lower opening as a result of rotor rotation, along its inner channel and extrusion from the outer body surface through the connecting channels at locations above the lower opening. Also, the rotor comprises several outer blades attached to the body so that they rotate during body rotation located above the lower opening and extending outwardly from the outer body surface and from the outlets of the connecting channels. The housing also includes passageways separated from the connecting channels. Each of the passageways has an inlet for receiving at least one gas and an outlet for discharging at least one gas incoming through the inlet. Each outlet of each passageway is located at a distance from other outlets and other passageways in the body located between the immediately adjacent outer blades.EFFECT: increased minerals extraction.32 cl, 9 dwg

Conductive strip installation to remove dust // 2623385
FIELD: machine engineering.SUBSTANCE: gas treatment system comprises a conductive strip with the longitudinal edges, wherein one or more longitudinal edges contain jagged structures having one or more longitudinal edges of the tops of teeth with the shortest distance selected in the range of 2-200 mm, a counter voltage generator configured to DC voltage application, at least 10 kV to the conductive strip. Gas treatment system comprises a counter electrode plate layout and conductive strips, the counter attached to the plate by one or more insulators disposed therebetween.EFFECT: increased cleaning efficiency, reduced power consumption.19 cl, 47 dwg

Pulp conditioning device // 2622970
FIELD: mining.SUBSTANCE: pulp conditioning device includes a cylinder-conical separating chamber with a tangentially disposed pulp inlet and a discharge port for withdrawing the coarse pulp fraction located in the conical part of the separation chamber and the pulp separator, a mixing chamber disposed in the cylindrical portion of the pulp separator connected by a branch pipes to an overflow chamber, Located on the bottom of the pulp separator. The device is provided with a hollow cylinder, inside of which there is the rotative axis, consisting of the upper and lower axes connected by crosses. The lower rotative axis is fixed in the support bearing, installed on the bottom of the overflow chamber, which has the form of a truncated cone with an angle of inclination of 20-30°. In the upper part of the separation chamber cylinder, the blades which are rotatable due to the tangential flow of the pulp and assembled into the wheel are fixed on the spokes. On the outer side along the length of the cylinder, the pins are helically welded, and in the mixing and outflow chambers the screw blades are welded for mixing. The truncated cone of the outflow chamber is closed by a rotating protective casing fixed to the lower rotative axis. The branch pipe for feeding the reagent is installed with the possibility of tangential feed of the reagent in parallel with the flow of pulp feed in the lower zone of the blades assembled into the wheel.EFFECT: increase in the contact time of the reagent with the pulp particles, uniform mixing of the pulp, decrease in energy consumption and reagent consumption.1 dwg
Precipitation electrode of electrofilter (versions) // 2622953
FIELD: electricity.SUBSTANCE: device according to the first version contains separate elements made in the form of hollow drums fixed on the insulators and an axis having threads on both ends for joining the elements of the precipitation electrode and connecting the contact rings when installing the precipitation electrode in the electrofilter. The axis is hollow with high-voltage wires located inside it, one end of which is fixed on the inside of the precipitation electrode, and the other ends are led out through the hollow axes to further feed the supply signal through the contact rings, when the precipitation electrode is installed in the electrofilter. According to the second version, the device comprises a separate element made in the form of a hollow truncated cone fixed on the insulators and the axis having threads at both ends. In the third version, the device comprises separate elements made in the form of smooth, even hollow drums.EFFECT: mechanical strength, rigidity while maintaining the precipitation surface without sharp edges, which contributes to the efficiency of the electrofilter by maximizing the use of the electrode surface.3 cl, 3 dwg

ethod of producing low-sulfur iron ore // 2621512
FIELD: chemistry.SUBSTANCE: according to the method, an iron ore comprising sulfur in an amount greater than 0.08% but not more than 2%, is subjected to flotation to produce iron ore which sulfur content was reduced to 0.08% or less. During flotation process (1) a xanthogenate-based compound and aminocompound salt are used as collectors, (2) the xanthogenate-based compound is used as a collector, and a material which releases sulfur ion in water is used as activator, or (3) the xanthogenate-based compound and the aminocompound salt are used as collectors, and the material which releases sulfur ion in water is used as activator.EFFECT: method enables to use low-grade iron ores and produce low-sulfur iron ores.5 cl, 1 tbl, 1 dwg, 10 ex

ethod of increase of electric wind speed and device for its implementation // 2621386
FIELD: electricity.SUBSTANCE: method for increasing the speed of the electric wind, which consists in applying a DC voltage to electrodes arranged in rows parallel to the gas flow, thus in series with the DC voltage applied pulse voltage, the pulse frequency selected from the range of 0 to 30 kHz and the pulse duration is chosen considerably smaller than the pulse repetition period. Device for increasing the speed of the ion wind, characterized in that the constant voltage source through a current limiting element connected to the electrodes, and parallel to the electrodes, after the current limiting element connected across the capacitor of high voltage pulse generator.EFFECT: increased electric wind speed and increased efficiency.2 cl, 5 dwg
ethod of processing of thickening sulfur-sulfide gold-containing concentrates // 2621196
FIELD: metallurgy.SUBSTANCE: method includes preliminary opening of sulfides. After opening, flotation enrichment is carried out on organic carbon, sulfide and elemental sulfur and gold with the direction of the flotation concentrate for pyrometallurgical or pyrodiammetallurgical processing, and the chamber product of flotation for cyanidation. Opening of sulphides in an aqueous medium is carried out by bacterial, or autoclave, or acid-oxygen opening.EFFECT: increasing the through-extraction of gold from concentrates by reducing the persistence of the product entering the cyanide.6 cl, 7 ex, 1 tbl
ethod of preconcentration of solid mineral resources // 2620823
FIELD: mining.SUBSTANCE: method of preconcentration of solid minerals is that prior to forming the planned production intensity, according to the initial geological and geophysical core sampling is carried out, the identification of uneven distribution of solid minerals in the interior by analyzing fractional ore composition for the content of useful harmful components degrees of contrast and washability ore in the bowels of the definition of theoretically achievable targets of joint processing of mining mass for individual groups of exploratory wells (operating units). Formation of a planned ore flow of a given quality is carried out at the boundary content of useful, harmful components by means of radiometric batch sorting in transport tanks using ore control stations. Boundary value indication of division mining mass RKS set on the content of the useful components, mid-linear area of selective regime of separation of ores with sod separating the analysis of curves and contrast families and dressability of ores in the depths of the mine. Edge separation mode is chosen so that the mineral content in lean product RKS was equal to the middle linear region of selective separation of ores in sod, expressed in units of separation content of useful, harmful component. The lean product of RKS is crushed to size, regulated by the method of subsequent lump separation, divided into machine and nonmachine classes and carry out lump separation of machine classes with the direction of the enriched product of RKS, concentrate of lump separation and non-bulk classes for factory processing, and the waste rock from the stage of lump separation with mass fraction of valuable components, not exceeding the accepted content of the on-board content of the valuable component, into the waste.EFFECT: increasing the efficiency of ore dressing by reducing the level of dilution of mined ore, reducing irreversible losses of valuable components and volumes of mineral raw materials sent to factory enrichment, while increasing and stabilizing its quality, increasing the completeness of excavation of ore mass from the interior.4 cl, 3 tbl

Hydraulic classifier // 2620819
FIELD: machine engineering.SUBSTANCE: hydraulic classifier comprises a casing, a screening device set along the casing, branch pipes for water supply and fine fraction removal set at the casing corners being opposite to each other as per diagonal in its longitudinal section, branch pipes for suspension supply and removal set at the other casing corners being opposite to each other as per diagonal in its longitudinal section, a vibrator, the screening device consists of sieves coupled pairwise along the perimeter by a shell. Dryer device is made of united in pairs around the perimeter of the sidewall sieve. The branch pipes for suspension supply and removal are communicated with the inner space of evey pair of sieves. The vibrator is coupled with the screening device. Flexible pipelines are connected to the branch pipe for suspension supply, divergent nozzles with curvilinear spiral-like guides at their inner surface are installed on the pipelines in tiers within the half of the suspension chamber height and ar located in the inner space of every pair of sieves interconnected by resilient plates. Side end faces of the suspension chambers are enclosed by mesh. The vibrator is equipped with a drive with adjustable rotation speed, and speed controller is associated with pressure regulator, coupled with pressure sensor, positioned in the water-supply tube. The pressure regulator comprises interconnected comparators and setting units, electronic and magnetic amplifiers and a nonlinear connection unit. The speed controller is made as a unit of powder electromagnetic clutches. Curved helical guides located on the inner surface of the expanding nozzle, covered on the outside of the cavity glassiness nano-like film of tantalum oxide.EFFECT: increase in the productivity and effectiveness of the classification.5 dwg
ethod of coal improvement // 2620503
FIELD: mining.SUBSTANCE: method includes improvement of coal slurry flocculation, conditioning with successive introduction into the pulp collector and frother and the allocation of fuel supply in the concentrate. Premixed before flocculation anionic copolymer of acrylamide with sodium acrylate and sodium salt of carboxymethylates of oxyethylated isononylphenol general formula C9H19-C6H4-O-(C2H4O)n-COONa, where n=10-12, at a ratio of 20:1. After the resulting mixture was injected into the slurry in an amount of 33-42 g/ton of coal.EFFECT: improved recovery of the combustible mass in the concentrate.2 tbl
ethod of viziometric analysis of quality of ore and device for implementation // 2620103
FIELD: chemistry.SUBSTANCE: method viziometric analysis of ore quality involves the preparation of ore sample, the formation of the flat portion of the sample, and illumination in the zone of fixing of images formed by the measurement the flat portion of the sample in the visible spectrum, a computer image analysis calculation of mass fraction, ratio of the basic mineral forms and impregnation of minerals. To improve the accuracy of the analysis of the mineral composition of the ore, flat portion ore is formed at the lower end of the sample formed by placing a sample on a transparent plane surface, the lighting and fixing the flat image portion of the sample are carried from the bottom up in the two-dimensional scanning operation, comprising, for example, longitudinal movement along the planar portion sample frontally oriented to the flat portion of the sample measurement area. Preparation of ore sample comprises crushing ore to a particle size -5 mm, Allocation class 1 -3 mm, Washing and drying of the selected class. The method is carried out by using apparatus comprising a table for placing the sample, a source of light flux, a device for transmitting a light signal, the optical transmitter of light signal into digital, the controller. The apparatus is equipped with a device for the joint movement of the luminous flux source and means for transmitting signal light source or a light flux device to transmit the light signal and optical signal light transmitter along the table for placing the sample. The source of the luminous flux is formed as a light pipe. Device for transmitting light signal is in the form of longitudinal mirrors and longitudinal lens. The optical transducer is a longitudinal photosensitive element. Source of light flux, the device for transmitting a light signal and an optical transmitter are arranged below the table for placing the sample, with the ability of front moving along a table for placing the sample.EFFECT: improved accuracy of analysis of the mineral composition of the ore.3 cl, 1 dwg, 3 tbl
Device for regulating flotation and flotation classification process // 2619624
FIELD: mining.SUBSTANCE: device for controlling the flotation and flotation classification process, including the lighting device, the video analyzer, the laser foam level sensor and the controller, installed over the foam threshold of the flotation machine. The device is provided with a flow generator made in the form of a tray with a flat bottom and a tapered section, inclined in the foam discharge direction, installed behind the foam threshold in the foam discharge direction. The video analyzer and the laser foam level sensor are installed at right angle to the inclined tray bottom. The device is equipped with a device for measuring the foam product parameters during the flotation process, containing the foam product colour template with one or more colour elements corresponding by the colour characteristics to the foam product at a different weight fraction of a valuable component, and a spray-type device for cleaning the foam colour template.EFFECT: increasing the accuracy of the foam product output analysis and the mass fraction of iron, reducing iron losses during enrichment.2 cl, 1 dwg, 2 tbl
ethod of fine clay material producing // 2619622
FIELD: technological processes.SUBSTANCE: invention relates to minerals processing and can be used to produce highly pure and/or modified clays, drilling muds preparation. Method of fine clay material producing involves breaking of initial clayey or clay-containing material in fluid until obtaining suspension, followed by extraction and removal of sediment from suspension, including fragmental product, and obtaining suspension containing fine fraction of clayey material, concentration of obtained suspension, wherein, during breaking mixture of liquid and initial material repeatedly passed through ejector providing supersonic flow and braking of suspension with formation of shock waves in ejector and three-phase mixture at ejector outlet, containing liquid, initial material and gas, wherein ejector is used with flow section, which minimum size is not less than for 3 times exceeds introduced clayey or clay-containing material particles size, and which amount in suspension is 2–15 wt%.EFFECT: technical result consists in maximum removal of fragmental product from clayey minerals.9 cl, 6 dwg, 1 tbl

ethod of flotation // 2618797
FIELD: chemistry.SUBSTANCE: method of flotation includes a first stage comprising first the use of carboxymethylcellulose (CMC) in the first flotation cell and a subsequent stage comprising a second use of CMC in subsequent flotation chamber, wherein the first and the second CMC perform different characteristics. First CMC has a degree of substitution (DS), which is different from the second DS of CMC, preferably the DS value of first CMC is lower than the DS value of the second CMC. The difference in the values of the DS is at least 0.4. First CMC has a viscosity which differs from viscosity of a second CMC. First CMC has a molecular weight which is different from molecular weight of the second CMC.EFFECT: improving the efficiency of the flotation.18 cl, 5 dwg, 3 tbl
ethod for radioelectronic products scrap processing with high purity precious metals extraction // 2618588
FIELD: metallurgy.SUBSTANCE: initial boards are charged into a typical hammer crusher HC-1 with established typical screens. After crushing of boards, crushed fraction is charged to a flotation machine FLM-1. After flotation metal fraction is washed with water and air dried. Further, metal fraction is mixed with potassium tetrafluorobromide in a weight ratio of 1:10, and fused inside a muffle furnace. After cooling, produced melt is dissolved in water. Remaining insoluble material is separated on filter paper, air dried and sent to refining.EFFECT: extraction of high purity precious metals.2 ex

odular energotechnological complex for processing sludges from concentration of coal and iron ore // 2617762
FIELD: technological processes.SUBSTANCE: invention relates to processing disperse high-humidity wastes in the form of sludges obtained as the result of concentration of coal and iron ore at coal-cleaning and agglomeration-concentration plants of coal-processing and metallurgical enterprises. Modular energotechnological complex for processing sludges from concentration of coal and iron ore includes a module for processing coal sludges containing a coal sludge thickening unit, which via a thickened product discharge line is connected to a coal sludge drying unit, a module for obtaining fuel briquettes and a unit of generating energy resources by combustion of coal-water fuel, which is connected via a line to the initial coal sludge source and via thermal agent transmission channels to the coal sludge drying unit and to the module for obtaining fuel briquettes. Complex is additionally equipped with a module for processing iron ore concentration sludges and a module for obtaining prereduced briquettes. Module for processing coal sludges is additionally equipped with a unit of dry sludge dressing, which is connected to the coal sludge drying unit, to the unit of generating energy resources by combustion of coal-water fuel and to the module for obtaining fuel briquettes. Coal sludge drying unit is additionally equipped with a line connecting it with the initial coal sludge source. Module for processing iron ore concentration sludges comprises connected with the unit of dry coal sludge dressing a unit of generating energy resources by combustion of powdered coal fuel and series-connected: a unit for preparing, drying and grinding iron ore concentration sludges, a magnetic separation unit and a unit of classification, gravity and electrostatic separation. Unit for preparing, drying and grinding iron ore concentration sludges is connected to a source of iron ore concentration sludges. Module for obtaining prereduced briquettes is connected to the unit of dry coal sludge dressing and to the magnetic separation unit. Unit of generating energy resources by combustion of powdered coal fuel via thermal agent transmission channels is connected to the module for obtaining prereduced briquettes and to the unit for preparing, drying and grinding iron ore concentration sludges.EFFECT: higher efficiency of complex processing high-moisture wastes in the form of sludges of coal and metallurgical enterprises.1 cl, 1 dwg
ethod for enrichment of metalliferous scum and slag // 2617192
FIELD: metallurgy.SUBSTANCE: scum and slags are processed with microwave energy for 1-10 minutes, powdered, large particles of metal are extracted by gravitational methods, and gravitation rejects are subjected to flotation with xanthate and aerofloat used as collectors at pH=8÷9, then at pH=3.5÷5. Sodium dialkyldithiophosphate is used as an aerofloat at a rate of 50÷500 g/t.EFFECT: increase degree of precious metals and copper extraction.1 tbl, 1 ex
ethod of flotation concentration of agrillic gold-bearing rock // 2616646
FIELD: mining.SUBSTANCE: method of flotation concentration of agrillic gold-bearing rock comprises air conditioning of shredded pulp and processing with reagents - a collector, a foamer. Anionic flocculant of Magnofloc type is additionally injected into the flotation pulp at a ratio of collector and flocculant of 1:0.017-1:0.03 and flotation time of 7 minutes.EFFECT: increased gold recovery from acidified agrilic gold-bearing ores.1 tbl, 9 ex

achine for separating ergot from rye seeds // 2616037
FIELD: agriculture.SUBSTANCE: machine for separating ergot from rye seeds by the specific weight in the potassium salt solution consists of the bath, the rye seeds and ergot horns conveyors, the hopper with the feeder. The rye seeds and ergot horns conveyors by the bath width are configured as belt sieves with transverse bars installed at regular intervals along their length. The feeder wall is immersed in the salt solution and separates the cavity of the bath with the rye seed conveyor from the ergot horns conveyor.EFFECT: increasing the efficiency of separating ergot from rye seeds, as well as reducing the specific energy consumption of the technological process and reducing the metal consumption.1 dwg
ineral processing using polymeric material including moiety selectively binding to mineral // 2615990
FIELD: chemistry.SUBSTANCE: invention relates to processing a mineral mixture, which comprises first preparing a mineral mixture, which contains a metal-containing mineral and one or more unwanted gangue minerals. Method then comprises contacting mixture of minerals and polymeric material that includes a mineral binding moiety which selectively binds to metal-containing mineral. Further, method comprises separating the gangue minerals and polymeric material which has metal-containing mineral bound thereto. All steps of method are carried out as part of a flotation process. Polymeric material contains particles, configured to ensure their surfacing. Polymeric material contains a polymer formed by polymerisation of precursor polymer of formula (I), wherein R1 represents i) CRa, where Ra is hydrogen or alkyl, containing from 1 to 20 carbon atoms; ii) group N+R13 (Zm)1/m, S(O)pR14 or SiR15, where R13 represents hydrogen, halogen, nitro or hydrocarbyl, containing from 1 to 20 carbon atoms, optionally having as substitutes or including its structure functional groups, R14 and R15 are independently selected from hydrogen or hydrocarbyl, containing from 1 to 20 carbon atoms, Z is an anion having charge m, and p equals 0, 1 or 2, iii) C(O)N, C(S)N, S(O)2N, C(O)ON, CH2ON or CH=CHRcN, where Rc represents an electron-acceptor group, or iv) OC(O)CH, C(O)OCH or S(O)2CH; where R12 is selected from hydrogen, halogen, nitro, hydrocarbyl, containing from 1 to 20 carbon atoms, R2 is selected (CR7R8)n or group CR9R10, CR7R8CR9R10 or CR9R10CR7R8, where n equals 0, 1 or 2, R7 and R8 are independently selected from hydrogen or alkyl containing 1 to 20 carbon atoms, and one of R9 or R10 represents hydrogen, and other is an electron-acceptor group, or R9 and R10 together form an electron-acceptor group; R4 is selected from CH or CR11, where CR11 is an electron-acceptor group, dotted lines denote presence or absence of a bond, X1 represents a group CX2X3, where dotted line-denoted bond, to which said group is attached, is absent, and group CX2, where dotted line-denoted bond, to which said group is attached, is present, X2, X3 are independently selected from hydrogen or fluorine.EFFECT: invention enables efficient separation of metal-containing mineral from unwanted gangue minerals.42 cl, 21 ex
Pneumatic flotation machine // 2614170
FIELD: mining.SUBSTANCE: pneumatic flotation machine of reactor-separator type comprises an aerator, a reactor, a separation chamber, a foam settler, a foam remover regulator, a splitting device and a device to output stems. Flotation machine is equipped with an external foam settler located between the separation chamber and the aerator to improve the gas content in the under foam zone, which is a shell with a porous inner surface.EFFECT: reduction of the mechanical removal of particles of non-recoverable minerals with foam.1 dwg

ethod for complex ash processing of heat power plants waste piles and plant for complex ash processing of heat power plants waste piles // 2614003
FIELD: power industry.SUBSTANCE: complex ash processing method of heat power plants waste piles includes the separating of ash pulp into the coarse and fine fractions, flotation, and magnetic separation to obtain the target products. The coarse fractions of ash are separated on the screens for using in the production of concrete mixtures. Ash fine fractions and subjected to the main and cleaner flotation, filtration and drying, to obtain a carbon concentrate. The separated at the primary flotation the tail fractions are subjected to magnetic separation and drying to obtain magnetite and silica-alumina concentrate. The aluminosilicate concentrate is grounded in the ball mill upto the fine fraction, filtered and dried. During the primary flotation the collector-kerosine and pine oil is used as the blowing agent. The cleaner flotation is carried out on the return water. The method is carried out on the complex ash processing plant of heat power plants waste piles, containing the means for separating the ash pulp into the coarse and fine fractions, as well as flotation and magnetic separation to obtain the target products. The ash pulp separator is designed as the screen, which outlet of the coarse fraction is connected to the inlet of the first section for the production of concrete mixtures. The screen outlet of the fine fraction is connected to the first flotation machine inlet for the main flotation, the first outlet of which is connected through the second machine of the cleaner flotation, filtration and drying units with the the second section inlet for the coal concentrate storing. The second outlet of the first flotation machine is connected with the first inlet of magnetic separation unit, the first outlet of which is connected through the drain silo with the third section inlet for the magnetite concentrate storing. The second outlet of the magnetic separation unit is connected through the thickener and drying units with the third section inlet for the aluminosilicate concentrate storing. The drain silo outlet of water is connected to the second inlet of the magnetic separation unit.EFFECT: fullest recovery from the wet ash waste piles of power heating plant of the target useful products in the form of ash coarse fraction for the concrete mixtures production, carbon for using as a boiler fuel, magnetite concentrate as a raw material for the metal industry and active aluminium silicate additive for construction materials productions.5 cl, 1 dwg, 1 tbl 2 ex
ethod for enrichment polymetallic ores containing nickel, copper and iron sulfide minerals // 2613687
FIELD: mining.SUBSTANCE: method of enrichment of polymetallic ores comprises grinding ore raw components, collective flotation of sulfide minerals in the presence of sulfhydryl collectors such as xanthate and aeroflot to obtain a collective sulphide concentrate with froth product and rock tailings with flotation tail. The obtained collective sulfide concentrate is desorbed succesively in two stages. At the first stage of desorption sodium sulfide is pumped into the slurry, at the second stage - activated charcoal is pumped in an amount to provide a weight ratio of the said pumped sulfhydryl collector at the step of collective flotation collector, sodium sulfide and carbon in the range of 1:(4-18):(4-18). Then collective sulfide concentrate is regrinded untill there are at least 80% of particle of size grade under 30 microns, processed with alkaline of reagent regulator medium (pH to at least 11.5 units.) and transferred to a selective copper-nickel flotation using fresh and/or cleared water carried out in several stages. Meanwhile the collective sulfide concentrate pulp with the desorbed sulfhydryl collector is pre-aerated at first and then flotation of copper minerals is carried out in the presence of copper mineral collector of the dithiophosphates group and frother, with sulfidization of copper minerals with sodium sulfide, and activation via pumping in the pulp of a sulfidizating agent(s)-aktivator(s) of flotation of copper minerals with acidic properties until the pH value of the pulp level achieves 10÷10.5 units. At the beginning of each subsequent flotation stage pH is reduced by 1÷1.5 units until pH value achieves the level as at the stage of discharge of the finished copper concentrate of 5.5÷8 units. Flotation tail of the selective copper-nickel flotation is a nickel-pyrrhotite product which is regrinded prior flotation separation until there are at least 80% of particle of size grade under 30 microns. Release of nickel iron sulphides with high nickel content is performed in the presence of dimethyldithiocarbamate and a sulfhydryl collector at the weight ratio of (3÷15):1. PH values at the stages of separating nickel iron sulfide from low nickel pyrrhotite are maintained at the range from 9.5 to 11 units. Flotation tail at the first separation stages with low nickel contents is subject to control separation and low nickel pyrrhotite is obtained with the flotation tail. Flotation tail at the subsequent separation stages is transferred to the control flotation to obtain a pyrrhotite concentrate with froth product.EFFECT: increase in the degree of separation of the collective sulphide concentrate.1 tbl, 2 ex

Installation for filtration of microparticles, contained in gaseous combustion products, and/or exhaust gases and corresponding discharge circuit // 2613654
FIELD: wastewater treatment plants.SUBSTANCE: group of inventions relates to devices for filtration, prior to discharge of microparticles contained in exhaust gases and/or gaseous combustion products into atmosphere. Installation comprises a casing, which can pass along the discharge circuit for gas flow. Inside the casing there is a channel, along which the flow can pass on a perforated plate, having negative electric potential for radiation and scattering of electrons in the channel, which can be connected with particles (B) of the contaminant, carried with the flow, being the microparticles, passing a negative charge to them. Inside the channel downstream behind the perforated plate there is at least one accumulation plate, having positive electric potential, which is intended to attract and retain electrically charged particles (B) on the accumulation plate. Plant includes at least one current-conducting thread, which has negative electric potential, turned aside and is located near at least one corresponding hole in the perforated plate, as the main source of radiation and scattering of electrons, which can be connected with particles (B) carried with the flow, in fact near the place of their passage through the hole.EFFECT: higher filtration efficiency, operational reliability.15 cl, 7 dwg

ethod of controlling direction and density of erosion on collecting electrode for wet electrostatic filter // 2613650
FIELD: manufacturing technology.SUBSTANCE: invention relates to cleaning gases and air, in particular, to wet electrostatic filters. Collecting electrode for a wet electrostatic filter is made from an electrically conducting, corrosion-resistant, heat-resistant and spark-resistant composite material containing a woven carbon fibre in a thermo-reactive polymer with a cross-linked structure. Direction and density of erosion on the electrode is controlled by controlling the weaving pattern of the carbon fibres and thickness of the carbon fibres fabric. Higher density of the weaving pattern of the carbon fibres increases the density on the electrode erosion. Increased thickness of the carbon fibres creates erosion lines with a smaller number of bends and branches.EFFECT: higher reliability due to increased resistance to arcing.1 cl, 6 dwg
ethod for back water preparation during flotation // 2613401
FIELD: chemistry.SUBSTANCE: method for back water preparation during flotation involves dosing of reagents for back water neutralisation, heavy metals precipitation, and sulfhydryl collectors for electrochemical parameters of the back water. Potential difference between two electrodes, one of which is molybdenum and the other is either argentite, or cadmium, or tin, or antimony, is measured in the water or pulp flow. Based on the measured potential difference deviation of least one bimetal pair from the predetermined optimum value, reactant supply is adjusted. To neutralise the back, an acid, such as sulfuric acid, or alkali, such as lime milk, is used, dose is adjusted by the potential difference of a bimetallic pair including molybdenum and cadmium electrodes, so that an increase in the potential difference Δ(Cd-Mo) increases the dosage of alkali and a decrease in the potential difference Δ(Cd-Mo) reduces the dosage of alkali. Hydrosulphuric acid salts and its derivatives, for example, Na2S, NaHS are used as a reagent for heavy metals precipitation, wherein the dose is adjusted out based on the potential difference of a bimetallic pair including argentite and molybdenum electrodes, so that an increase in the potential difference Δ(Ag2S-Mo) increases the reagent dosage, and a decrease in the potential difference Δ(Ag2S-Mo) reduces the dosage. Bluestone is used as a reagent for sulfhydryl collectors precipitation with dose adjusted based on the potential difference of a bimetallic pair including argentite and molybdenum electrodes, so that an increase in the potential difference Δ(Ag2S-Mo) reduces the dosage, and an increase in the potential difference Δ(Ag2S-Mo) reduces the dosage. In case of simultaneous treatment of water to neutralise acidity via dosing alkalis and heavy metal deposition using hydrogen sulfide salts and its derivatives, three metal electrodes are used: argentite, molybdenum and antimony. Alkali feed is adjusted, so that an increase in the potential difference Δ(Sb-Mo) increases the dosage of alkali and a decrease in the potential difference Δ(Sb-Mo) reduces the dosage of alkali. Hydrogen sulfide salts and its derivatives flow is adjusted out so that an increase in the potential difference Δ(Ag2S-Mo) increases the reagent dosage, and a decrease in the potential difference Δ(Ag2S-Mo) reduces the reagent dosage.EFFECT: improved accuracy and reliability of reagent supply at an optimal level, consumption of which is adjusted based on the measured electrochemical potential of the back water.7 cl, 12 dwg, 8 tbl, 3 ex
ethod of selective flotation adjustment // 2613400
FIELD: technological processes.SUBSTANCE: selective flotation process adjustment method includes the depressing reagents dosage according to the electrochemical parameters of the pulp. The potential difference between molybdenum and cadmium electrodes is measured in the pulp flow, and according to the measured potential difference of the bimetallic electrode pair from the specified optimum value, correct the depressing agent feeding so, that at the increase of potential difference reduce the reagent dosage, and at the potential difference decrease increase the dosage of the reagent. The alkalies such as lime milk are used as the zinc sulphides and iron depressant. The silicon contained depressants, such as sodium fluorosilicate are used as a dead rock depressant. The sulfoxide compounds, such as zinc sulfate are used as the zinc sulfide depressants. The sulfurous acid salts and its derivatives, such as sodium hydrosulfite are used as the iron sulphide depressant. At scheelite ores flotation, using the steaming according to Petrov's method of the fatty-acid collector desorption from the minerals surfaces, additionally perform the calcium salts dosage, such as CaCl2, which flow rate is adjusted based on the measured potential difference between the molybdenum and cadmium electrodes. At flotation of copper-molybdenum ores, using environment controller, such as sodium carbonate; sulfhydryl collectors - xanthate, aeroflot, or its derivatives; depressants, such as sodium sulfide and apolar collector, such as diesel fuel, in the ore cycle the reagents dosage is corrected according to the measured potential difference between the molybdenum and cadmium electrodes.EFFECT: reliability and accuracy increase of the depressing reagents dosage control.7 cl, 18 dwg, 7 tbl, 4 ex
Cold plasma generator // 2613213
FIELD: electricity.SUBSTANCE: device comprises a casing, an isolated electrode in the form of the plate of the insulating material with the metallic conductor and current conductor located inside, an uninsulated electrode in the form of the metal grating located between the insulated electrodes. The uninsulated electrode has a recess located opposite the current conductor of the insulated electrode. The insulating material of the insulated electrode has a thermal expansion coefficient close to the thermal solution coefficient of the metallic conductor. The metal grating of the uninsulated electrode consists of the horizontal wires, between which the vertical wires with bulges and depressions are located. The bulges of each subsequent vertical wire are located opposite the depressions of the previous vertical wire. The planes, containing bulges of the outer vertical wires, are arranged at the angle of 15 to 60 degrees to the uninsulated electrode plane.EFFECT: improving reliability of the device operation by providing uniform heat and electrostatic load on the insulated electrode elements during operation.5 cl, 6 dwg
Flotation reagents and flotation processes utilizing same // 2612760
FIELD: chemistry.SUBSTANCE: present invention relates to floatation reagents and a method of froth flotation for improved extraction of valuable sulphide minerals and precious metals from ores, silicate-containing Mg, slime forming minerals and/or clay. Method of enhancing recovery of a value sulphide and/or precious-metal mineral from an ore, containing said mineral and/or precious-metal mineral and one or more of Mg silicate, slime forming minerals and/or clay comprises adding to one or more stage of froth flotation process performed under acidic conditions, a froth phase modifier. Froth phase modifier is a polymer, including one or more functional groups, selected from a group, consisting of sulphonate groups or corresponding acids, phosphate groups or corresponding acids, phosphonic groups or corresponding acids, phosphinate groups or corresponding acids, hydroxamate groups or corresponding acids, silane groups and silanol groups.EFFECT: technical result is higher extraction of valuable sulphide minerals and/or precious-metal minerals from said ore.15 cl, 12 tbl, 65 ex

ethod of selective flotation management // 2612412
FIELD: chemistry.SUBSTANCE: method of selective flotation process management comprises dosage of sulphidizer, activators, depressing reagents and collectors based on pulp electrochemical parameters. Potential difference between two electrodes: molybdenum and ion-selective electrodes, represented by argentite, or tin, or nickel electride, is measured in the pulp flow. Based on the deviation of bimetallic electrode pair potential difference from the predetermined optimum value, sulphidizer activator, xanthate and depressing reagents feeding is corrected to increase reagent dosage in case of increased potential difference, and to reduce reagent dosage in case of decreased potential difference.EFFECT: increased feeding reliability and accuracy of depressing reagents dosage control.19 dwg, 7 tbl, 4 ex
ethod for removing charged particles from gas flow // 2612292
FIELD: gas industry.SUBSTANCE: invention relates to methods for cleaning gases and can be used in power engineering, in ferrous and nonferrous metallurgy, cement, nuclear and other industries. Removal of charged particles from gas flow is performed by electric field of electric filter. To grip microparticles, variable electric field of quadrupole type is used. Variable field generates linear electrodynamic trap, its axis is perpendicular to direction of gas flow rate. In the trap charged particles are captured without depositing on electrodes and removal of trapped particles from gas flow along the axis of the trap by gravity and/or additional constant electric field.EFFECT: higher degree of purification of gas and simplification of system for collecting microparticles.1 cl, 2 dwg

ethod of flotation extraction of rare metals // 2612162
FIELD: mining.SUBSTANCE: method of flotation extraction of rare metals comprises pre-crushing and further flotation under UV emission. Material is crushed in time period from 5 to 10 minutes in amino acetic acid conditions, then classification is performed to determine the grain size class -0.074+0 mm. The prepared material is delivered to the flotation process, where liquid glass is used as depressant, then collector is added, the collector comprises over 95% of sodium diisobutyldithiophosphinates, then pine oil is added as foaming agent. Simultaneously with chemicals addition the pulp is subjected to UV emission during time period from 6 to 12 minutes.EFFECT: increased efficiency of flotation enrichment of ores comprising rare metals, including rhenium under UV exposure, and increased selectivity of separation of valuable elements.1 dwg, 2 tbl
Diatomite benefication method // 2611784
FIELD: mining.SUBSTANCE: diatomite benefication method deals with successive introduction of an aqueous solution of amine oxide into a dispersion of the diatomite in water and then an aqueous solution of alkali metal polyacrylate resulting in disengagement of the beneficated diatomite. The process is carried out while stirring. Disengagement of the beneficated diatomite is carried out within 5-10 minutes. A ratio of solid:liquid (S:L) = 1:4 for the dispersion of the diatomite in water is applied. After both the amine oxide and the alkali metal polyacrylate are introduced the dispersion is being mixed for 3 to 5 minutes. Alkyldimethylamine is used for amine, where the alkyl comprises radical C10H21-C18H37 or C12H25-C14H29.EFFECT: technology is simplified and at the same time the chemically active materials are avoided.6 cl, 1 tbl, 1 ex
ethod for fastening, centering and tension of discharge electrode in electrostatic air cleaning installations of tubular type // 2611664
FIELD: technological processes.SUBSTANCE: discharge electrode is placed and fastened vertically in the air treatment housing with its top attachment point. At the same time the discharge electrode is a single unit with a spinning tube where its loose weight tenses and centers the discharge electrode over the entire length of the spinning tube. The discharge electrode is securely fastened on the insulator over the axis at the bottom of the spinning tube and is freely passed through the insulator axial hole at the top of the spinning tube.EFFECT: assembly and disassembly process is simplified as well as the maintenance process.1 dwg

Aeronautic unit for treatment of air in cities from gases and dust // 2609594
FIELD: transportation; aviation.SUBSTANCE: aeronautic unit for treatment of air in cities from gases and dust includes cigar-shaped shells connected with a frame, a stabilizer, steering wheels and two sustainer propulsion systems. Two sustainer propulsion systems - two electric motors with a screw in an annular fairing with a variable traction vector - are installed on cantilevers attached to side surfaces of the frame. Inside the central shell there is a rigid body of an electrostatic filter filled with many metal meshes - positive electrodes, between which there are wire corona-forming negative electrodes suspended. On the frame there is a wing fixed being coated by solar battery elements, and at the bottom there is a reserve gas cushion for flying at height.EFFECT: reduced concentration of harmful and aggressive gases.4 dwg
Vertical tubular electric filter (versions) // 2608402
FIELD: technological processes; gas industry.SUBSTANCE: invention relates to electric cleaning of gases from suspended particles in different industries, in particular, in chemical and petrochemical industry, metallurgy and other industries. Vertical tubular electric filter comprises a housing, precipitation electrodes, corona-forming electrodes, power supply, characterised by that it comprises an electric drive, rigidly coupled with mechanical transmission, which in its turn is connected to precipitation electrodes arranged in form of hollow drums, configured to rotate on horizontal axles in insulators and bearings, wherein axles are hollow having inside them high-voltage wires, some ends of which are fixed on inner side of precipitation electrodes, and other ends are attached to contact rings fitted on axis of precipitation electrodes, having a sliding contact with brush assemblies mounted on housing and connected by high-voltage wires to power supply, which is also connected with corona-forming electrodes, fixed in insulation inserts, which are fixed in housing of vertical tubular filter in lower part of which there is a catalyst, and at ends of housing there are discharge sleeves to secure scrapers are attached, wherein sleeves are connected with dust collector bin. In vertical tubular electric filter according to second version, precipitation electrodes are made in form of hollow drums and are configured for rotation on vertical axes in insulators and bearings fitted in horizontal inserts of housing, wherein number of precipitation and corona-forming electrodes, as well as their diameters are selected, based on need to ensure required cleaning of gases of combustion products.EFFECT: technical result is providing permanently clean surface of precipitation electrode in active zone of electric filter, which provides higher efficiency of electric filter due to exclusion of ash dust, repeated sticking settled dust when cleaning of precipitation electrodes and elimination of intermittent nature of voltage supply to precipitation and corona-forming electrodes.2 cl, 4 dwg

Flotation classifier // 2608120
FIELD: technological processes.SUBSTANCE: invention relates to concentration of ores by flotation. Flotation classifier comprises a cylindrical chamber with a lower conical part connected with a sands unloader, an installed inside the chamber coaxially with it open from above cylindrical collector of fine particles drain with an inclined drain branch pipe and a pulp level regulator, aerators installed between the chamber walls and the cylindrical collector of fine particles drain, a lower product collector, installed in the upper part of the chamber narrowing chutes made with a lower narrow portion of the bottom and with lower product flow rate regulators and connected in the lower narrow part of the bottom with the lower product collector by means of branch pipes, an installed inside the chamber foam-collecting chute for the upper product of the narrowing chutes and a tangential branch pipe to feed the initial pulp installed to provide a rotational movement of the pulp in the chamber. Narrowing chutes are installed in the upper part inside the cylindrical chamber perpendicular to its radius and are provided with boards having a horizontal upper edge and cutouts for outlet of the upper product of the narrowing chutes in the lower narrow part of the narrowing chutes. Foam-collecting chute for the upper product is located under the narrowing chutes and is made with an output from the chamber.EFFECT: provided is higher efficiency of flotation classification.1 cl, 3 dwg

Apparatus for processing carbon-containing wastes of mines and dressing factories // 2607836
FIELD: mining.SUBSTANCE: invention relates to separation of solid materials in recycling industrial wastes using combined methods, more specifically to a plant for processing carbon-containing wastes of mines and processing plants and can be used in complex processing of a significant amount of waste rock, in particular, from Moscow and Chelyabinsk coal basins, as well as for processing fly ash of thermal power plants to produce at output aluminium silicates, carbon and iron-containing minerals. Apparatus for processing carbon-containing wastes of mines and processing plants includes means for fractionation of raw material in separating medium. Means for separation of suspension of carbon-containing wastes by fractions comprise a screen for preliminary classification, first and second inputs of which are connected to outputs of loading hopper and roll mill. First and second outputs of screen are connected to inputs of roll mill and first hydraulic cyclone, first output of which is connected to first inputs of hydraulic classifiers and screw separator. Second output of first hydraulic cyclone is connected to first input of thickener, which is also connected with first outputs of screw separator and second hydraulic cyclone. Second input of thickener is connected to output of first accumulation vessel for flocculant, first output of thickener is connected to second inputs of screw separator and hydraulic classifier. Second output of thickener is connected to input of electrodynamic separator, first and second outputs of which are connected to inputs of second and third accumulation tanks for iron-containing minerals and aluminosilicate product. Outputs of hydraulic classifiers and screw separator are connected to first and second inputs vibration dryer, third input of which is connected to second output of second hydraulic cyclone. First and second outputs of vibration dryer are connected via pump with input of second hydraulic cyclone and input of fourth accumulation vessel for coal concentrate. Electrodynamic separator is made in form of inclined endless conveyor belt, installed on upper drive and lower driven drums with possibility of movement of working section of conveyor belt from below upwards and supply of separating medium in form of water to upper, and wastes of thickener to lower working part of conveyor belt. Lower driven drum of inclined conveyor is made hollow from dielectric material, inside of which there is a magnetic rotor with possibility of independent rotation.EFFECT: high efficiency of deep complex processing of carbon-containing wastes of mines and concentrators.1 cl, 2 dwg, 1 tbl
 
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