Separating particles from liquids, or liquids from solids, otherwise than by sedimentation or filtration (B01D43)
B01D43 Separating particles from liquids, or liquids from solids, otherwise than by sedimentation or filtration (flotation processes b03d0001000000; drying solid materials or objects f26b)(97)
FIELD: chemistry.SUBSTANCE: invention is intended for separation of impurities from fluid. Method of separating impurities from a host fluid includes steps of creating a flow chamber having a source of acoustic energy, and on opposite side of flow chamber an acoustic energy reflector, facilitating flow of host fluid through flow chamber, applying source of acoustic energy to host fluid in order to generate a three-dimensional ultrasound standing wave, wherein three-dimensional ultrasound standing wave leads to formation of acoustic radiation force, having an axial and a transverse component, having one order of magnitude. Device for separation of impurities from a host fluid comprises a flow chamber with an inlet and an outlet, through which flows mixture of host fluid and at least one of second fluid and particles, ultrasonic transducer or a plurality of ultrasonic transducers on wall of flow chamber, reflector arranged on wall on side of flow chamber, opposite transducer. Each transducer includes a ceramic crystal, which forms side of transducer. Transducer is excited by an oscillating, periodic or pulsed voltage signal at ultrasound resonance frequency. Crystal excites transducer for oscillation at irregular shift mode to generate a three-dimensional standing wave in flow chamber.EFFECT: technical result is higher capture force for acoustophoresis.27 cl, 30 dwg, 3 tbl
FIELD: chemistry.SUBSTANCE: invention relates to a method for treating a catalyst discharged from bubbling bed hydrogenation of residual oil. Method comprises following steps: (1) adjustment and control to reduce viscosity, wherein catalyst discharged intermittently from a bubbling bed hydrogenation reactor for residual oil, is adjusted for storage and then discharged continuously, subjected to temperature adjustment by adding water, such that viscosity of oil adsorbed on surfaces and inside pores of discharged catalyst particles is reduced, and flowability of adsorbed oil on surfaces and inside pores of the discharged catalyst particles is improved; (2) desorption and separation by rotational flow, wherein adsorbed oil is desorbed and separated from surfaces and inner pores of discharged catalyst particles by a flowing shear force from a rotational flow field; (3) separation and resource utilisation of three phase oil-water-catalyst, wherein oil/water/catalyst mixture produced from desorption and separation by rotational flow, is subjected to three-phase separation, achieving recovery of oil, recycling of water obtained by separation, and full recovery of solid particles obtained by separation. Invention also discloses a device for implementation of method.EFFECT: technical result consists in reduction of cost of treatment, simplified process, higher oil recovery factor, reduced tendency to formation of secondary sources of contamination.10 cl, 1 dwg, 1 ex
FIELD: oil and gas industry.
SUBSTANCE: invention can be used, for example, for the separation of oil in the oil fields, on marine separators for oil refining. Installation for separation of oil contains oil heater and a separator. Separator comprises a housing, the drive and mounted in bearings of rotor conductive, non-magnetic material configured as a drum separator. Drive consists of an electric motor having a stator having an axial portion with a core and a winding, in which the end parts of compound has rendered monolithic tube for cooling the stator and heating oil. Stator further includes a cylindrical portion, wherein the two stator windings are connected in series.
EFFECT: technical result of the claimed invention is to increase the energy efficiency of the installation for the separation of oil, reduction in weight and size, increasing reliability.
1 cl, 1 dwg
FIELD: chemistry.SUBSTANCE: invention relates to application of magnetic nanoparticles for selective removal of biopreparations, molecules or ions from liquids. Chemical composition includes magnetic nanoparticles, surfaces of which are functionalised with amine and additionally with substance, selected from substances, reversely reacting and reversely binding with predetermined target in water-based liquid. Diameter of nanoparticles is in the range from 1 nm to 500 nm. Method for obtaining chemical composition includes interaction of magnetic nanoparticle with (3-aminoalkyl)-triethoxysilane. Method for removal of target from water-base liquid includes reaction of chemical composition with targets and formation of complex chemical composition-target. Water-based liquid, containing complexes chemical composition-target, is exposed to magnetic field in such a way that complexes are isolated in certain part of water-based liquid. Water-based liquid is divided into first part, which does not contain complexes chemical composition-target, and second part, which contains complexes.EFFECT: invention makes it possible to increase liquid purification efficiency.20 cl, 31 dwg, 1 tbl, 8 ex
FIELD: mining.SUBSTANCE: invention relates to mining industry and can be used for dehydration of fine classes of ore and nonmetallic materials, including solid fossil fuels (coal, peat, etc.) with particle size of 0-6 mm. Installation for dehydration of fine classes of ore and non-metallic materials comprises device for supply of wet material, device to supply sorbent, device for mixing of wet material with sorbent with internal rotor, device for separation of dry material from sorbent, device for recovery of sorbent. Inner rotor of device for mixing of wet material with sorbent is made in form of a shaft with fixed tools for mixing material with a sorbent and movement of mixture with formation of zones arranged in-series along the axis. In area of wet material feed and mixing tools are fixed on shaft in form of rods or knives arranged parallel to each other, in area of sorbent supply tools are fixed on shaft in form of rods or knives arranged along spiral. Sorbent mixing zone with material consists of two parts, in first of which tools are fixed on shaft in form of blades arranged along spiral, and in second part and in zone of unloading tools are fixed on shaft in form of two ribbon augers, one is with greater radius of turn, swirled to move mixture to discharge zone, and second is with smaller radius, swirled in opposite direction to move mixture by counter-flow. In area of counter flow tool in form of short ribbon auger is secured on shaft, swirled to direct mix towards unloading zone.EFFECT: technical outcome is effective dehydration of material.4 cl, 2 dwg
FIELD: oil and gas industry.SUBSTANCE: invention relates to methods of separation of oil, and can be used in ship separators for cleaning oil. Method for separation of oil involves preliminary heating of crude oil, separation, production of refined oil and residue. At that, raw oil is preliminarily heated in heater to temperature of 58-60 °C. Then oil by poured compound tubes, saw-like stator winding of separator is additionally heated by heat generation in windings and motor stator magnetic conductors of separator. Then in end and cylindrical parts of separator, simultaneously being motor rotor separator, oil is heated to temperature of 65-70 °C, required for separation. Besides, at that oil is subjected to electromagnetic field with axial and cylindrical parts of motor stator separator.EFFECT: reduced power consumption and intensified oil separation.1 cl, 2 dwg
FIELD: agriculture.SUBSTANCE: device for introduction of liquid fertilisers with irrigation water in drip irrigation systems comprises a water source, a sump, a pump station, a filter with gauges, an irrigation network in the shape of a main pipeline with distribution and irrigation pipelines with droppers. To the distribution pipeline there is connected a feed pipeline with liquid fertilisers, the lower section of which is made with a transition two-phase nozzle with a spiral loop, the opening of which is made in the outer wall in the shape of a longitudinal slot. Branch encloses the spiral on the side of the slot and is connected with a diffuser, which, by means of a drain pipeline, is connected to solid fraction holding tank, after which the end of the outlet spiral loop is connected with the help of a pipe with a chamber and active nozzle.EFFECT: high reliability.1 cl, 2 dwg
FIELD: chemistry.SUBSTANCE: invention relates to a technology of obtaining fibres from polymers based on polyacrylonitrile-polyacrylonitrile (PAN) and acrylonitrile (AN) copolymers, namely to a stage of a polymer separation from a solution, and can be applied in the production of materials for the textile industry and precursors for obtaining highly strong carbon fibre of a novel quality, applied in different fields of technology. The method of separating the polyacrylonitrile-based polymer from 15-22 vol% solution in the formation of a PAN-precursor for obtaining the carbon fibres includes the extraction of the polymer from its solution without the application of precipitators and the following removal of a solvent by the ventilation of the fibre by air jet. Separation of the polymer from the solution is realised under an influence of mechanical tensions at a temperature of 150°C lower than the temperature of the solvent boiling, with 8-12-time extraction until the freshly formed fibre, with a residual content of the solvent not more than 1%, is obtained.EFFECT: considerable acceleration of the fibre formation, sharp simplification and acceleration of the polymer separation process, exclusion of a necessity of a multi-stage extraction of the fibre, simplification of the solvent regeneration process.1 tbl, 3 ex, 2 dwg
FIELD: chemistry.SUBSTANCE: invention relates to the purification of finely-disperse organic substances from water-soluble admixtures and can be applied in the chemical, petrochemical, pharmaceutical, food branches of industry. Described is a method of removing water-soluble admixtures from suspensions of organic products by repeated repulpation-decantation with the application of water, containing metal nanoparticles, as a washing liquid. At the first and second stages of the repulpation used is water, passed through a layer of carbon with high reaction ability, containing nanoparticles of metal oxide from the group, including nickel oxide, nickel and chrome oxide, nickel and iron oxide. At the third stage of the repulpation used is water, containing nanoparticles of metal from the group, including iron, aluminium, nickel, platinum. The fourth repulpation is carried out with the application of water, containing a micellar solution of silver or gold as a washing liquid.EFFECT: invention provides the reduction of loss of the target substance with a washing liquid, reduction of the volume of sewage waters, requiring purification from organic compounds and water-soluble admixtures and increase of the consumer properties of organic substances.10 cl, 3 dwg, 4 tbl, 14 ex
FIELD: process engineering.SUBSTANCE: invention relates to treatment of effluents sedimentation including high-concentration emulsified oil products and can be used at industrial enterprises before effluents sedimentation by concentration. Proposed method comprises electric treatment by asymmetric variable current and filtration for concentration. Before electric treatment, the effluents are subjected to vibroacoustic effects in two frequency sub bands with lower frequency of 0.3-0.8 kHz and upper frequency of 9-18 kHz. Said method comprises electric treatment by asymmetric variable current of positive pulse duration of 30-100 s and amplitude of 0.4-0.6 A while negative pulse duration and amplitude make 6-10 s and 0.75-1.0 A.EFFECT: intensified filtration for concentration.2 tbl, 1 ex
FIELD: process engineering.SUBSTANCE: invention relates to separation of solid particles from fluid, particularly, to devices exploiting turbulence effects originating in fluid flowing via pipe, and may be used in hydraulic mechanisation during underwater excavation. Proposed device comprises pulp feed line connected with hydraulic mix pump gun, turbulent-vortex separator wit discharge pipe and intake container. Pulp feed line is connected with turbulent-vortex separator by flange joint composed of central hydrodynamic tube made up of several truncated cones with separation plates with fluid discharged bores. Every said plate is arranged at an angle to hydrodynamic tube axis.EFFECT: better separation.1 dwg
FIELD: process engineering.SUBSTANCE: invention may be used in water treatment at thermal electric power stations for calcination, in cleaning condensates and effluents. Flows of fluid to be cleaned and gas are mixed to produce gas-fluid medium of bubble structure and separate formed foam with dirt from cleaned fluid. Gas is forced in dynamic conditions brought about by pulsating feed of gas perpendicular to flow of cleaned fluid. Gas-fluid medium of bubble structure is produced at Weber number exceeding critical magnitude. Proposed device comprises casing 1 with fluid and gas feed branch pipes 2, 3 communicated with chamber 5 of mixing flows of has and fluid, guide device 8 made up of cone, separating curved concave surface to discharge foam and cleaned fluid changing into ascending toroidal surface 9 at cone base, tank 12 for cleaned fluid and tank 13 for foam with dirt. Hartmann oscillator 7 is arranged at outlet of gas feed branch pipe 3. Funnel 6 is arranged at mixing chamber outlet to displace axially thereat. Vertex of cone 8 is located axially symmetric inside said funnel 6. Annular apron 10 is arranged above ascending toroidal surface and inclined to cone base 8 to produce annular slot 11 therewith.EFFECT: higher efficiency and reliability.2 cl, 1 dwg
FIELD: process engineering.SUBSTANCE: invention relates to modified resins to be used in selective separation of solid or ionic particles, say, metal cations, from water media. Method of separating clay from clay-containing ore with organic or inorganic admixtures comprises bringing water slime of clay-containing ore in contact with amino aldehydes resin comprising silane binder, and separating clay from said ore in or after contact by foam flotation of, at least, one organic or inorganic additive. Method of cleaning bitumen comprises bringing bitumen slime comprising bitumen and one or several soluble or insoluble additives in contact with amino aldehydes resin comprising silane binder, and separating clay from said ore in or after contact by foam flotation of, at least, one organic or inorganic additive. Method of cleaning water compound comprising water and one or several soluble or insoluble admixtures comprises brining said compound with in contact with amino aldehydes resin comprising silane binder to obtain resin-admixture complex, and separating said complex from water compound in or after treatment to produce purified water. Method of ore enrichment comprises processing of water slime of ore including valuable mineral and one or more admixtures with amino aldehydes resin comprising silane binder to obtain resin-admixture complex, and separating said valuable material from foam flotation water slime. Modified carbamide formaldehyde resin comprises silane binder with covalent bond with carbamide formaldehyde resin with molar urea-to-formaldehyde ratio varying from 1:2 to 1:3.EFFECT: higher efficiency of treatment and enrichment.42 cl, 1 dwg, 4 tbl, 5 ex
FIELD: technological processes.SUBSTANCE: invention relates to resins for use in separation methods and especially in selective separation of solid substances and/or ion particles, such as metal cations, from water media. Method for removal of admixtures from bitumen-containing slurry includes delivery of bitumen-containing slurry, including bitumen, water and at least one admixture, aeration of bitumen-containing slurry, contact of aerated bitumen-containing slurry with amino aldehyde resin, to produce lower and upper fractions and foam, and then lower fraction is separated from medium fraction and foam. Method for dehydration of coal-containing slurry includes delivery of coal-containing slurry, including coal and water, contact of coal-containing slurry with dispersion of aminoformaldehyde resin produced by interaction of urea and formaldehyde at mole ratio of formaldehyde to urea between 1.75:1 and 3:1, besides aminoformaldehyde resin has value of number-average molecular mass between 400 and 1200 g/mole, therefore coal is separated from slurry, and then separated coal is dehydrated by filtration, deposition or drying. Method for removal of admixtures from water includes delivery of contaminated water, including admixtures, such as solid particles, metal cations or their combinations, contact of contaminated water with dispersion of aminoformaldehyde resin produced by interaction of urea and formaldehyde at mole ratio of formaldehyde to urea between 1.75:1 and 3:1, besides aminoformaldehyde resin has value of number-average molecular mass between 400 and 1200 g/mole, therefore admixtures are settled from contaminated water to produce purified water having lower concentration of admixtures compared to contaminated water, and further admixtures are separated from purified water. Method for treatment of clay from ore, which contains clay as the main component, includes delivery of slurry from clay-containing ore and water, contact of slurry with amino aldehyde resin, during or after contact stage, separation of clay from slurry by means of foam floatation of specified one or more admixtures, withdrawal and cleaning of clay having reduced content of specified admixtures. Moreover, amino aldehyde resin includes aminoformaldehyde resin having concentration of free formaldehyde in resin less than approximately 1%.EFFECT: increased efficiency of solid substances or ion particles from admixtures.32 cl, 1 dwg, 2 tbl, 3 ex
FIELD: pipeline transport.SUBSTANCE: invention relates to servicing of pipeline systems designed for transportation of liquid media and it can be used as auxiliary devices preventing accumulation of mud and dirt in pipelines. In proposed mud trap three-dimensional members are made in form of part of ball enclosed between two parallel secant planes. Height of three-dimensional members is equal to distance between part of members far from surface of pipe. Holes in pipe are made elongated and orientated parallel to plane of bottom. Two holders are arranged under each three-dimensional member on pipe for overlapping holes in pipe, being installed for rotation around pipe. Two blade cutting plates are secured on each holder at angle of 30°-32°, being arranged at a distance from surface of pipe equal to 1-3 mm. One ring, width from 7 to 9 mm is secured on lower holder on plates orientated in radial direction. Rectangular plates are secured over outer perimeter of ring at angle of 45° to vertical and at equal distance from each other. Member designed to prevent getting of particles earlier settled on bottom into medium to be cleaned is cone-shaped, with large base pointed upwards, which is secured on pipe, and mud discharge branch pipe is mounted in lower part of cone-shaped member.EFFECT: increased degree of water cleaning.2 cl, 1 dwg
FIELD: pipeline transport.SUBSTANCE: invention relates to servicing of pipeline systems designed for transportation of liquid media and it can be used as auxiliary devices preventing accumulation of mud and dirt in pipelines of boiler rooms, heat supply systems, central heat supply points and heat supply units of buildings as well as technological water flows and recycling of water in industrial enterprises. In proposed mud trap pipe and outlet branch pipe are hermetically connected, three-dimensional members are made in form of part of ball enclosed between two parallel secant planes, height of three-dimensional members is equal to distance between far part of members and surface of pipe, holes in pipes are made elongated and orientated parallel to plane of bottom. Member designed to prevent getting of particles earlier settled on bottom into medium to be cleaned is cone-shaped, with its larger base pointed upwards which is secured with clearance on pipe. Water-level gauge glass is installed in housing between bottom and larger base of cone-shaped member.EFFECT: increased degree of water cleaning.5 cl, 1 dwg
FIELD: pipeline transport.SUBSTANCE: invention relates to servicing of pipeline systems designed for transportation of liquid media and it can be used as auxiliary devices preventing accumulation of mud and dirt in pipelines of boiler rooms, heat supply systems, central heat supply points and heat supply units of buildings as well as technological air flows and recycling of water in industrial enterprises. In proposed mud trap pipe and outlet branch pipe are hermetically connected, three-dimensional members are made in form of ball segment whose height is from 25 to 40% of ball radius from which segment is cut out, minimum distance from surface of ball segment to cylindrical housing is from 2 to 5 radii of said ball, holes in pipe are made elongated and orientated parallel to plane of bottom, and member designed to prevent getting of earlier settled particles into medium to be cleaned is cone-shaped, with its larger base pointed upwards which is secured with clearance on pipe. Water-level gauge glass is installed in housing between bottom and larger base of cone-shaped member.EFFECT: increased degree of water cleaning.3 cl, 1 dwg
FIELD: pipeline engineering.SUBSTANCE: mud trap comprises tightly interconnected pipe and outlet branch pipe, conical member, and bottom. The generatrix of the conical member is inclined to the bottom at an acute angle of 50-70°. The distance between the bottom boundary of the longitudinal openings in the pipe and the boundary of the projections of the conical member on the surface of the pipe is no less than half of the distance from the bottom boundary of the conical member to the surface of the pipe. The members for preventing previously settled particles to penetrate into the fluid to be cleaned is made of a perforated ring. The bottom surface of the ring is provided with the second perforated ring for permitting displacement around the vertical axis. The second perforated ring is provided with a drive for moving it around the axis. In the operation position, the openings of ring perforation are not in coincidence.EFFECT: enhanced quality of cleaning.4 cl, 1 dwg
FIELD: treatment of oil-containing waste.SUBSTANCE: installations can be used for taking and treating oil-containing waste from sludge carts, barns, reservoirs and sites of sludge spilling. Assembly has pump, vapor- and pipelines, boiler-room for preparing vapor, barn connected with storage and re-cycling oil sludge and its components units by pipeline; it is also connected with container of wheel transport discretely by means of pumps, containers and pipelines. Assembly has flooring with pontoons, which flooring has to be base support surface for vapor-heater and vapor-sprayer, trap with gutters for putting sleeves, vapor-line and pipelines. It also has control unit fastened to shore area, through which unit the current is applied to electric engine of pump. Pump is provided with working wheel and three-coordinate rotating support. Pump is disposed in vertical position and has its blades, disposed at level of receiving window, is submerged into sludge till depth of 0,5-0,8 m. Control cabinet has start-protecting and commutation equipment. Barn is connected with storage units through rough cleaning filter and metering device. Storage units by means of pump and containers are discretely connected with containers of wheel transport through pipeline provided with cock. Containers with oil-sludge and its components are additionally provided with coils to let heated vapor circulate in them, which coils are connected to boiler-room. Jellied oil can be subject to re-cycling at any climatic conditions at environmental; temperatures of -25 to +45 degrees Celsius.EFFECT: improved efficiency of operation.
FIELD: devices for separating liquid or solid substances from sewage, for instance used in civil and industrial treatment plants.SUBSTANCE: device comprises body with grid installed in the body. Grid includes rigid frame and filter formed as a number of plates, grid cleaning means, carriage and special accumulative tray for separated impurities receiving. The device has n>1 grids installed in series inside channel in sewage flow direction and defining gaps decreasing in sewage flow direction. Grid cleaning means is made as a rotary bush of flexible resilient rods and connected to drive. Accumulative tray is shaped correspondingly to bush shape and made of perforated material.EFFECT: increased efficiency.3 cl, 3 dwg
The invention relates to the separation of the sludge from the water, and the slurry has a density approximately equal to the density of water
The invention relates to an electrodeionization device for and method of removing ions from aqueous solution in the device for EDI, which, in particular, contains many compartments diluting and concentrating compartments, and a continuous phase of the first ion exchange material with the dispersed phase of the second ion exchange material
The invention relates to the construction and road equipment, namely, devices for processing bitumen melting, and can be used to obtain the required servings of dehydrated and purified liquid bitumen at specified thermal conditions
The invention relates to the preparation processes of oil refining, in particular to the separation of the oil particles, sand, water
The invention relates to techniques for the purification of liquids, mainly water from dispersed or dissolved therein the impurity gas emitting agent (flotation, degassing) and allows to increase the efficiency of cleaning
The invention relates to the processing of peat, in particular to its fractionation to obtain a feedstock in the production of various products based on peat
The invention relates to the separation of coarse suspensions on the properties of elasticity of the components and can be used in chemical and other industries where it is necessary to divide the suspension into liquid and solid phases