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Proposed hammer comprises casing (1) with inlet and outlet pipes (2) and (3), working chamber (15), inner rotor (4) with rotary pump blades (5) and cylindrical ring (6). Slotted diffusers (8) are arranged over the edges of cylindrical ring (6). Outer rotor (10) of countercurrent rotation concentrically covers the inner rotor (4). Outer rotor (10) is equipped with confusers (13) arranged over edges of its cylindrical ring (11). Said hammer is equipped with extra cylindrical rings (7, 12) on inner and outer rotors with diffusers (9) and confusers (14) arranged over their edges. Cylindrical confusers on outer rotor feature smaller diameter compared with cylindrical ring diffusers on inner ring. Extra effects of hydraulic shock on ground material in one pass and series of resonance loads in compression-rarefaction cause fast destruction of grinding material particles. |
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Mode of fragmentation in roller breaking machine Roller breaking machine comprises a housing, a drive rotating roller and a fixed jaw. A surface of the rotating roller is designed with protrusions arranged parallel to the axis in the form of stops, the working surface of which is oriented to the direction of rotation. The height of the stop is larger than a half of size of a breakable piece and smaller than the gap value between the roller and the jaw. |
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Mill comprises loading (1) and unloading (13) devices, a cylindrical body (2), in the internal volume of which a vertical shaft (3) with a fixed carrier (4) is mounted. Rollers (5) and brushes (6) alternating in the circumferential direction, associated with pinion gears (7), are installed on the carrier. The pinion gears cooperate with a toothed annular stationary guide (8), located on the housing cover (9). A diameter of pitch circles of the pinion gears is 1.1-1.3 times larger than the diameter of the rollers. Spherical projections (10), contacting with an undulating guide (11) on the inner surface of the housing to move along the axis of the carrier, are made on the end surfaces of the rollers and bushes. |
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Chopper comprises a rotor, a stator and knives fixed in the rotor and stator. The knives are made with two cutting edges - end and radial. The end cutting edge of the rotor or stator knife is perpendicular to the radial cutting edge, is facing to the working end surface of the stator or the rotor and made tangent to the end plane, belonging to the end surface of the rotor or stator. The radial cutting edge of the knife is parallel to the rotation axis of the rotor or stator and is moved away from its centre to the overall circumference at a distance of the rotor or stator radius. The knives are mounted in the heads with the minimum possible gap between the radial cutting edge and the inner cylindrical surface of the housing equal to 0.02-0.05 mm. The rotor and stator are installed with a gap between their end surfaces equal to 0.02-0.05 mm. |
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Invention relates to grinding, particularly, to conical grinders. Grinder 10 comprises grinding cone 22 fitted on vertical shaft 18, first lining 30 secured to said cone and housing 12 whereto second lining 32 is secured. Second lining 32 and first lining 30 make the working clearance 34. Support piston 36 is arranged inside the cavity 40 of shaft 18 to displace vertical therein for adjustment of working clearance width. Eccentric 20 runs in at least one radial bearing 42 about shaft 18. Grinder 10 comprises oil line 44 arranged in said cavity 40 to extend via piston plate 37 of piston 36 for feed of lubing oil to chamber 46. The latter is arranged, at least partially, in cavity 40 above plate 37 of support piston 36. Note here that chamber 46 for lubing oil is communicated with radial bearing 42 via channel 50 in shaft 18. |
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Classifying roll disintegrator Classifying roll disintegrator two inclined adjustable surfaces mounted at the frame to make lengthwise adjustable slot, intake and discharge devices. Said two inclined surfaces are composed of rolls arranged with clearance to run in opposite directions. One roll rpm is lower that that of the second roll. Ring-like rings are made on roll surface over its length and arranged in staggered order. Irrigation system is mounted between said rolls above said clearance. |
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Grinding fittings for disc mill Grinding fittings include coaxial stator and rotor discs, working surfaces of which are facing to one another and provided with curvilinear knife protrusions, the cutting edges of which are designed with eccentricity relative to the disk centre, as well as circular and inclined in the same direction. According to the invention, a tilt angle of the cutting edges of the stator knives on the circular entry edge of discs is larger than the tilt angle of the cutting edges of knives of the rotor by 7…10°. |
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Laboratory bead mill comprises a milling chamber with a cooling jacket and a cover, a rotor with disks, a rotor rotation drive. The milling chamber with the cooling jacket is set coaxially to the rotor and is fixed by hinged bolts in a tilting yoke. The tilting yoke is joined with a movable sleeve and a screw mechanism cross member. The screw mechanism provides for pressing the milling chamber to the cover with the possibility of its lowering and lifting. The rotor drive is installed on a rotating pole. The rotating pole together with the movable sleeve is mounted on a common supporting hollow cylindrical column with grooves for the cross member travelling. The rotating pole and the tilting yoke are fixed in extreme positions. The rotor disks made with radial fins are set at an angle of 90°. The radial fins of a baffle disk are turned to the drain valve side. |
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Set of inventions relates to grinders, particularly, to disc mills. In compliance with first version, this mill comprises grinding chamber, inlet and outlet, multiple spinning grinding elements located spaced apart in said chamber, distributing and separating stage to separate fine particles from coarse ones, to force fine particles from said chamber and to return coarse particles therein. Grinding elements have one or several holes or gaps between them for pulp and grinding medium passage there through or along grinding chamber. Note here that said mill comprises at least one grinding element located in grinding chamber to allow larger path for the flow therefrom compared with the other grinding elements. In compliance with second version, this disc mill comprises at least one grinding element with clear area making 15-100% of grinding element surface area without clear area. |
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Drive system for heavy load cargo and mill driven by it Invention relates to mills, in particular, to roller tray cement and coal mills, and can be used in heavy load cargo drive systems. A drive system (1) is equipped by a grinding pan (2) set so that to rotate around the vertical line (A), a casing (6) and a gearing system (4) resting against the casing (6). An electric motor (5) is installed above the gearing system (4) and is integrated in the casing (6). The electric motor (5) rests against the casing (6) and first of all against a supporting element (6c) of the casing. A rotor (7) can be connected to the gearing system (4) directly or via a clutch integrated in the rotor (7). |
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Method of obtaining a homogeneous finely dispersed highly active mass of a bulk material (gypsum binding agent) in phosphogypsum utilisation contains the following steps: drying initial phosphogypsum with application of discharge hot gases of kilns; neutralisation of dried phosphogypsum by addition of neutralisers; performing final drying of the neutralised raw material by kiln; cooling the finally dried raw material; supply of the cooled raw material to activation lines for further crushing, mechanical activation, chemical and electric activation, which is performed by an aerodynamic vertical activator of a gravity type, which contains a vertical chamber of crushing, made in the form of a hollow cylinder, in lids of which installed is a shaft with a possibility of rotation; at least, two working discs are fixed on the shaft, and it additionally contains rods, installed in a wall of the vertical chamber of crushing, beaters, installed in a radial way on each surface of the working disc and projecting beyond the disc edges, with rods being installed in such a way that when the said discs with the beaters rotate the rods are located between the beaters, fixed on the discs. |
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Press-rolling unit comprises tapered rollers above which a loading hopper is set. A deagglomerating device consisting of a jaw mechanism and additional rollers is installed under the rollers. The additional rollers are characterised by an inverse cone and are coupled pairwise with the main tapered rollers by rods. The rods are fixed pivotally in the centre of their length according to a rocker arm system. The rods are fitted with longitudinal slots in the places where they are coupled to the roller shafts. |
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Mill drive system comprises a gear 1 set under a grinding pan and fitted with a planetary and/or cylindrical stage 11, 12 having a vertically positioned shaft. An electric motor 2 is integrated in the gear casing 3, the motor rotor 21 and stator 22 have vertical axes. Upper 23 and lower 24 bearing retainers are installed on the opposite end faces on the rotor and the stator, the retainers are fitted with housings for the bearings 26, 27 of the rotor shaft. The upper 23 and lower 24 bearing retainers are connected by the stator casing 25 which is fitted with cooling fins along the outer perimeter. A pan for a cooling agent is provided between the lower bearing retainer 24 and the casing bottom part. The motor is supported by the flange 34 made on the inner casing side and protruding radially inside. |
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Flour wheat and its production method Invention relates to food industry, namely to flour wheat and method of its production. Flour wheat involves fraction produced during processing grains in an amount of in relation to its weight: fraction "seminal shell" 1.0-4.0 wt %, fraction "aleurone layer" 5.0-10.0 wt %, fraction "endospermatic flour" 67-75 wt %. Indices of quality flour composed: protein weight fraction at least 13% including weight fraction of fat no more than 2% weight fraction gluten no less than 25% quality gluten of no lower second the group falling number value at least - 185 with weight fraction ash no more than 1.0%, flour has distribution of particles size with more than or equal to 1500 g 315 mcm no more than 1.0%, with least 315 mcm, but more than or equal to 1500 g 250 mcm - no more than 13.0%, with least 140 mcm - no more than 68%. Wheat flour production method involves shelling and hydrothermal treatment. Then grains are divided into anatomic parts of by periodic stipulates to produce a sequentially in the form of individual fractions "shell fruit-and-berry", "seminal shell", "aleurone layer" and "hulled grains". Fraction "hulled grains" milled rolled or a roller method till to size, corresponding of fermentative activity grains. Sorted products mincing two fractions: "endospermatic flour" and "offal". Fraction "aleurone layer" and fraction "seminal shell" mixed. Mixture first sorted, removing from it large seminal shell. Mixture is milled, destroying the cell wall and matrix aleurone layer and remove from it aleurone grains in chopper impact principle action or roller type. Flour is produced, 1 mixing produced fraction: "endospermatic flour", "aleurone layer" and part of "seminal casings". The remaining "seminal casings", "shell fruit-and-berry", "offal" and fodder grain product the infusions in fodder product which undergoes extrusion or granulation or pressing. |
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Semi-self-grinding of primarily ferromagnetic stock Invention relates to grinding of ferromagnetics and can be used in processing of magnetite and sulphide ores containing magnetite, pyrrotine, that is, minerals with high magnetic susceptibility. This method consists in application of at least one electromagnetic system S configured in circuit "electromagnet-diametrically located electromagnet". At use of several electromagnetic systems S (at S>1), these are arranged in helical line with the shift over drum cylindrical surface. Said drum rotates at n=20D-1/2, where n is mill drum rpm, D is drum diameter, m, drum electromagnets excite magnetic pulses there inside. Note here that at displacement of electromagnets from 0° making the origin of angular coordinates at intersection of horizontal diameter left end with the drum to 30-50° to ensure increase in fall speed of ferromagnetic lumps at acceleration a, to be summed with gravity acceleration g. Magnetic pulses in the drum are eliminated in sector from 30-50° to 70-110° to resume the motion of balls and stock grinding by abrasion and crushing. Magnetic pulses are excited in section from 70-110° to 180° to trap ferromagnetic stock to be lifted to 180°. Magnetic pulses in the drum are eliminated in sector from 180-0° to deliver stock by friction and inertia to coordinate 225-226°. Another portion of stock is accelerated by magnetic pulses in sector of electromagnets of 0° to 30-50°, electromagnets being transferred the mill right to left. Horizontal components h of acceleration make ferromagnetic lumps crush the stock at <90° and move over lining of the pole and stock layer formed earlier. |
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Hammer crusher comprises a housing inside which the decks are located, the control of "live" section, made in the form of fixed and movable sieves with openings, the rotor with pivotally suspended hammers, the loading and the unloading necks. The openings in the sieves are made of rectangular shape. The fixed sieve is attached to the ends of the decks. The movable sieve has the ability to move along the circumference of the grinding chamber along the fixed sieve over a distance not exceeding the length of the opening of the sieve. To reduce the longitudinal dimension of the "live" section the direction of the movable sieve displacement should coincide with the direction of rotation of the rotor. |
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Support for gyratory crusher at idling Set of inventions relates to crushing hardware and comprises gyratory crusher, support and gyratory crusher cam. Cam running about fixed main shaft (20) makes movable cone assembly gyrate to crush the rock inside discharge slot (34). Movable cone lower bush contacts with cam outer surface. Said cam has contact island to increase contact between said cam and said lower bush at no-load operation. Said contact island has contact surface recessed relative to cam outer surface to increase contact at idling not affecting a full contact between said lower bush and cam outer surface in crushing at full load. |
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Invention relates to grinders, particularly, to roller mills with runner stones and bowl. Roller mill comprises at least one runner stone 1, runner stone bowl 2, at least one runner stone 1 drive system 3 and bowl 2 drive system 3. Bowl 2 has inner space 2b open downward. Runner stone bowl drive 3 incorporates straight gearless drive 4 fitted inside said runner stone 1 bowl 2. Note here that said drive 4 outputs 15-30% of the entire installed drive power of this roller mill. |
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Invention relates to grinding of loose vegetable stock. Loose vegetable stock grinder comprises grinding chamber 1 with loading funnel 2, rotor 3 with hammers 5 and screen 4 arranged in grinding chamber to continuously decrease radial clearance between rotor 3 and rotor 3 hammers 5. Note here that screen 4 features uniform helical thickness while rotor 3 hammers 5 are shaped to isosceles trapezoid. Knife grinds are made at sides of hammers 5. |
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Proposed grinder comprises the drum accommodating load-bearing shaft, shaft jacket, rotor bowl wit radial ribs, supporting ring, bearing assemblies, gearing and safety coupling. Note here that drum driving pulley and safety coupling whereat fitted is the rotor bowl driving pulley are fitted on motor shaft. Said drum has its kedge resting on extra bearing support. |
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Invention relates to grinders and to cleaning of grinder from foreign body. System 100 comprises at least one bidirectional cylinder 70 to maintain constant grinding force between head 500 and bowl 400 and to make cleaning stroke that facilitates the foreign body passage. Body of at least one cylinder 70 is reliably secured to main housing 300 at self-centring self-aligning position with the help of cylinder holder 40. Piston rod 30 of at least one cylinder 70 is directly or indirectly reliably coupled with adjusting ring 200 at self-centring self-aligning position. Piston rod 30 comprises first fastening link 10 and second link 20. Fastening part 202 integrated with adjusting ring 200 is caught between first and second fastening links 10, 20 of piston ring 30. |
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Crusher comprises a loading hopper 1, an unloading neck 5, a hammer drum 2, a cylindrical housing 3, inside which the corrugated decks 4 are mounted. In the corrugated decks the grooves are made. The corrugations of the decks have an angle between the faces of 95-105°, at that the front face is tilted to the radius at an angle of 30-35°. |
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Group of inventions relates to a tooth construction, a tooth unit and a drum device, which can be used in a mineral breaker. The tooth construction contains a case, which is made tooth-shaped, installed in the case envelope and a breaking element, installed on the envelope and forming together with it an external contour of the tooth. The case has the front side, opposite to it back side and two opposite lateral sides located between them. The envelope is formed by a casing, which has the front wall, opposite lateral walls and the upper wall, applied respectively on the front, lateral and upper sides of the case and configured with a possibility of being in the surface contact with the respective said sides. The breaking element contains a striking part, which has the back side, which is in the surface contact with the front wall of the casing, attached to it, and protruding from it forward, and the upper part, extending back from the striking part and having the lower side, which is in the surface contact with the upper wall of the casing and attached to it. |
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Invention relates to sold materials crushing means. Proposed mill comprises drum, drive, loader and unloader. Concaved drum is composed of concaved curvilinear strips with lateral edges. Strip concaved curvilinear shapes are described by different-degree and different-curvature curves and are coiled at concave mandrel in lengthwise-crosswise direction to make curvilinear faces. Adjacent curvilinear faces are located at obtuse angle to each other on strip outer and inner sides to intersect so that smooth major-direction helical lines are produced on outer surface and smooth helical grooves over the drum inner surface as well as smooth helical lines on opposite-direction outer surface and smooth opposite-direction helical grooves inside concaved drum. Concaved spring with turn pitch variation device is arranged over the entire length of concaved drum. Said drum with spring, loader, unloader and drive are mounted at the frame secured by means of rubber-cord air cylinders to the bed. |
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Milling machine for materials, mainly, in form of frozen blocks of food products Milling machine for materials contains a drive, a body with devices of the product charging and discharging and a cutting device. The cutting device is designed in the form of two screws (with cutting blades on the periphery of their ledges) installed symmetrical to the charging device and parallel to each other. In the cutting zone, the angle between the tangent to the circumference traced out by this zone during the crew rotation and the tangent to the blade front surface approaching the product has a value within the range of 30°-70°. The angle between the tangents to the said circumference and to the blade external peripheral surface has a value within the range of 5°-30°. The compression element is designed according to the shape of the surface contacting the product; this surface is represented by two cylindrical surfaces and replicates the surface traced out by the screws blades periphery during the screws rotation. |
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Invention relates to roll crushers for processing of spongy titanium and zirconium. Roll crusher comprises bearing frame (1) and cutting chamber with feed bin. Fixed and movable rolls with toothed discs running in fixed and movable bearings (9) and (10), respectively, are fitted in cutting chamber parallel about each other. Said bearings (9), (10) are arranged at bearing frame (1) and drawn by through horizontal couplings (12). Replaceable inserts (14) are fitted between bearings (9), (10) to define the clearance and to control centre-to-centre distance. Bracket (15) with gripper (16) articulated therewith is arranged at outer lateral side of bearing housing (9). Every gripper (16) is composed of sliding levers with vertical supports (20) and horizontal arms (21) with cantilever tails (22). Said cantilever tails (22) support plates (23) to accommodate detachable manual hydraulic jack. Load-bearing elements (25) are fitted at cantilever tails (22) to act on movable rolls and composed by a stack of plate springs (29). Roll crusher is equipped with transducers of gripper bell crank arms position. |
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Rotary crusher comprises a casing with receiving and unloading chambers, a rotor, a travelling chain grate and a screening surface. The crusher is equipped by an additional travelling chain grate installed in the casing. The rotor and travelling chain grates of crescent shape are made with corrugation in the form of truncated cones with concave top bases for positive catch and prevention of crushing of the processed material. The grates are replaceable. The grates are set so that their lower and upper ends are able of cross travelling together with the screening surface to control the degree of material crushing by adjusting the gap between the rotor and the grates. The crusher casing is rigidly mounted on a frame. |
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Machine for presowing treatment of seeding material Machine for presowing treatment of seeding material comprises a working element, a glazing drum which inner surface is coated with a layer of rubber, with a discharge window, a drive mechanism, a measuring hopper, a discharge chute. The working element is made of unjointed rods-rollers. The rods-rollers are made in the form of a spiral tetrahedral column coated with rubber layer, and are provided on both sides with the trunnions. The trunnions are able to roll on the feelers mounted inside the glazing drum. At that the diameter of the trunnions is greater than the maximum diameter of the rods-rollers and provides a constant gap between them and the walls of the glazing drum. The said gap is larger than the maximum size of the seeds. |
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Crusher comprises a rotor 1, a housing of the working chamber 11 which is mounted with the ability of free rotation relative to the rotor axis. In the side walls 3 of the housing of the working chamber 11 at least two pairs of slots are made for mounting the segments in the form of the sieves 2. The housing of the working chamber 11 is bounded by stationary housing of the plant 12, in which side wall 3 there is an opening 4 corresponding with the size to the segment size in the form of a sieve 2 and connected with an outlet 5. Under the stationary housing of the plant 12 the collector 7 is located, at the upper part of the stationary housing of the plant 12 an opening is made, which is connected to the device 8 for compressing the nitrogen via the conduit 15. The device 8 for compressing the nitrogen is connected to the collector 7 via the conduit 9, the conduits are provided with valves 6 to control supplying nitrogen, in the lower wall of the working chamber housing the openings are made, the collector 7 is provided with pipe branches for connecting to the openings located in the lower wall of the working chamber. |
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Method of preparing wheat grain with increased initial moisture for varietal bread flour milling Method comprises cleaning of grain from impurities, cleaning grain surface, heat treatment of grain with convective-conductive manner at a temperature of 60-100°C for 150-50 s., respectively, followed by binning for 0.5-1 hours. |
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Mill comprises cylindrical housing with inner circular ledge with openings and perforated cylinder. Perforated cylinder is mounted aligned with the housing to form finished product discharge chamber with housing surfaces and circular ledge. Cup-like rotor with hub is fitted on the shaft arranged coaxially in said housing. Rotor has horizontal section bent off from the centre and arranged above said circular ledge, screens and radial webs. Rotor radial webs have through rectangle-like slots made at rotor inclined surface lower part, each larger surface being located at inclined surface. Besides, radial webs between the webs and rotor hub have cut-outs shaped to rectangular trapezoid, its smaller base abutting on rotor inner cavity bottom. |
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Disintegrator comprises rotors, an unloading device and a drive. Rotors are made symmetrically with the possibility for the outer rows of striking elements to rotate in the direction of the unloading device. A casing is fitted by a rectilinear wall and the unloading device is equidistanced from the rotors' rotation axes and is set opposite the rectilinear wall. Two loading devices adjoin the casing and serve for the supply of materials to be ground to the rotors' rotation centres. The unloading device is fitted by a wire grid consisting of two segments converging in the point on the disintegrator symmetry axis and representing circular arcs with the centres being set on the rotors' rotation axes. Dimensions of gaps between the inner radius of the grid segments and the outer radius of the outer striking element rows as well as between the adjacent wire rods of the grid are defined as the dependence on the weighted mean dimensions of the initial material and those of a ready product respectively. |
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Machine for grinding seeds comprises a grinding drum, which inner surface is coated with a layer of rubber, with the discharge window, a working element, a measuring hopper, an unloading tray. The grinding drum is made in the form of a container which is elastically mounted on the base with a vibrator and mounted of three rectangular strips. The strips are alternately bent in opposite directions at an angle of 140° on the notches formed at an angle of 60° to each other and to the longitudinal edges of the strips to form the equilateral triangles along the strip length. The triangles alternately located in opposite directions. At that the strips are connected to one another along the longitudinal edges at an angle of 70° to form along the inner perimeter three polygonal curved helical surfaces and three polygonal helical grooves of the main direction to move the seeds from loading to unloading, and two polygonal curved helical surfaces and two helical grooves of the opposite direction for seeds from unloading to loading. Along the outer diameter of the container three polygonal helical lines are formed of the main direction with the pitch S and two polygonal helical lines of opposite direction with the pitch of 0.25 S, at the break points of the helical lines. At these points there are places of convergence of the sides of six equilateral triangles. The working element is made in the form of a coil spring coated with a layer of rubber, mounted inside the container and equipped with a device for changing the pitch of turns by its stretching or compressing. |
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Proposed mill comprises loading and unloading device, stationary cylindrical housing with baffle elements arranged on its inner surface. Housing central section accommodates bladed rotor with self-lined pockets. Trapezium-shape guide plates are arranged perpendicular to the plane of blades inside said self-line pockets at definite spacing in direction from rotor axis to periphery. Top faces of said guide plates are inclined to blade surface with inclination angle decreasing from rotor axis to periphery. |
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Proposed machine comprises cylindrical housing, initial material feed pipe, material discharge pipe and rotor drive. Initial material distributor composed of fixed cone is arranged directly above the rotor. Circular flanges are arranged at housing sidewall while fine dusty fraction discharge pipe is arranged at housing top section. Rotor fitted on the shaft in said housing is shaped to cylinder in height equal to rub-off zone and equipped with radial blades. It includes industrial blower is communicated with pipe discharging the fine dusty fraction along with airflow. Initial material feed pipe is arranged directly above initial material distributor. Finished product discharge pipe is arranged at housing bottom section. |
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Proposed device comprises frame 1, vertical shaft 19, rotor 20 with grinding elements 21, deck 18, discharge pipe 3, drive 22, cylindrical chamber 2 with feed pipe 4 arranged there above and fitted with opposed two curvilinear sliding shutters 5 and 6. Shutters 5, 6 are configured to overlap while their end working sides have inner angular isosceles cut-outs 16, 17 with vertices located on pone line with rotor vertical axis. Besides, this device comprises extra control unit 24 with moisture metre 23, rpm transducer 25 and material flow rate metre 26 connected thereto, material feed actuators 27, 28, material discharge actuator and rotor drive. |
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Method and device for control over comical crusher operation Set of invention relates to crushing of materials. Proposed crusher comprises first and second wear plates (4) and (5) fitted on crushing cone (3) and machine bed (16), respectively. Method of consists in measuring, first, of stress describing parameter in operation. Then, medium magnitude of said parameter and that of its deviation are determined. Thereafter, maximum magnitude is calculated proceeding from said medium and deviation magnitudes. Maximum magnitude is compared with control values to adjust crusher operation proceeding from said comparison of maximum value and control values. Control device comprises means to receive measured parameter describing the stress, means to define mean magnitude of said parameters, means to define parameters deviation, means to calculate maximum magnitude proceeding from medium and deviation magnitudes, means for comparison maximum magnitude with control magnitude and means to control crusher operation proceeding from maximum and control magnitudes. Proposed crusher is characterised by the use of this control device. |
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Method of obtaining stable oxygen terminated semiconducting nanoparticles Invention relates to method of obtaining inorganic semiconducting nanoparticles from particulate material. Method consists in the following: inorganic particulate material 14 is prepared, milled at temperature from 100°C to 200°C in presence of selected reducing agent. Said agent in chemical way reduces oxides of one or several composite elements of semiconducting material, formed in milling, or prevents their formation being mainly oxidised. As a result obtained are semiconducting nanoparticles of inorganic particulate semiconducting material with stable surface, providing electric contact between nanoparticles, with means if milling and/or one or more components of mill including selected reducing agent, which represents metal, selected from group, which includes iron, chrome, cobalt, nickel, tin, titanium, tungsten, vanadium and aluminium, or alloy, containing one or more of said metals. |
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Aerodynamic vertical activator of gravitation type Aerodynamic vertical activator of gravitation type comprises a vertical grinding chamber. The chamber is made in the form of a hollow cylinder, in covers of which there is a shaft installed as capable of rotation. At least two working discs are fixed on the shaft. On each surface of the working disc there are dashers installed as protruding beyond its edges. In the wall of the grinding chamber there are rods installed so that during rotation of discs with dashers the rods are arranged between dashers. Grinding and activation of loose materials is carried out with speeds of particle movement from 100 to 150 m/s. |
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Disintegrator for processing of oil-bearing wastes Invention relates to equipment for recovery of wastes, particularly, to disintegrators of oil slimes and water-oil emulsions by hydrodynamic and cavitation effects and may be used in oil and oil processing industries. Proposed disintegrator mixer, finished product vessel and vortex pump. Said mixer is connected to vortex pump intake pipe while finished product vessel is connected to vortex pump delivery pump. Said vortex pump is furnished with feed control bypass line including jet-type cavitation device and throttling devices. |
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Invention relates to devices for scouring grains. The machine for scouring grains, comprising a housing, a rotor with blades located in it, a device for loading, in order to improve the quality of scouring grains by reducing the amount of crushed kernels, is provided with discs of different materials - one abrasive, and the other of rubber, with rotary drive of the rotor and discs from the variator, at that the edges of the inner surfaces of the discs have cuts at an angle of 15-20°, at that the discs rotate in opposite directions, and the inner surface of the housing is lined with an elastic material. |
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Disintegrator for coal grinding Invention relates to power engineering and can be used for coal grinding at integrated coal processing plants. Proposed disintegrator comprises housing 1, discs 2 and 3 with hammers 6 fitted on hollow horizontal shafts 4 and 5 to run in opposite directions, grinding chamber 18, coal feed and discharge pipes 7 and 8. Separator 9 is mounted inside said housing to catch fine component milled coal. Note here that extra pipe 11 is arranged to discharge said fine component from disintegrator. Said separator 9 is composed of rotary screen 10. Twisted guide vanes 19 are arranged on side surfaces of discs 2 and 3 on opposite sides relative to grinding chamber 18. Through holes 20 are arranged under said vanes in said rotary discs 2 and 3. |
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Invention relates to forestry, particularly, to grain crushing. Proposed crusher comprises casing with screen attached to casing inner surface, suction pipe, motor and hammer rotor. Hammer rotor is composed of hub with inner and outer discs and axle arranged there between, each being provided with a set of hammers. Blower blades are secured at inner disc and radially shaped inside said hammer rotor and, at hammer rotor outlet, shaped in logarithmic spiral. Extra blades are arranged on hammer inner and outer discs, at rotor outer sides. |
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Invention relates to agricultural production and can be used both in production of feed, and in post-harvest grain processing. The roll crusher comprises a frame of the grinding mill comprising a feeding hopper and a chamber, and a feeding device mounted on the frame, receivers of small and large impurities, and a receiver of feeder grain connected to the feeding hopper, passed for flattening. At that inside the chamber the rollers for flattening of grain are mounted, and the feeding device is a scraping transporter with rubber-coated scrapers inside the housing. In the lower housing wall the sieves are mounted - lower and upper ones with small and large openings, respectively, between which the sieve is mounted with an average size of openings to separate the feeder grain fraction with the outlet for it through the receiver of the feeder grain for flattening. Outlet from the sieve with large openings is provided with a receiver of seed grain for its sending for further post-harvest processing and storage. |
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Invention relates to feed processing shops of live farming and poultry farming complexes. Proposed grinder comprises bearing case with intake funnel. Said case houses two aligned discs facing each other by working surfaces. One of the latter is fixed at said bearing case while the other one is secured on vertical shaft. Through opening is made at fixed disc centre to communicate with aforesaid intake funnel. This grinder is equipped with assembly to adjust working clearance between said discs. Two pairs of discs are fitted on vertical shaft in parallel. Note here that separator tapered grate is arranged under the first pair of discs, its vertex facing grain board under which fitted in the second pair of discs. Fixed and moving discs have three belts of deformation: intake belt with triangular cross-section grooves with recesses facing the direction of moving disc revolution, feed belt with concentric-radial cross-section and modular belt corresponding to preset particle size arranged at one third of the disc peripheral part. |
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System and method for ground material characterisation in grinding system System and method for ground material characterisation in a grinding system use an irradiation section through which at least a part of the ground material stream is fed and with irradiation means for irradiating the particles in the part of the stream with electromagnetic radiation; and a detection section for passage, having a detection means for detecting electromagnetic radiation emitted from the particles of the part of the ground material stream fed through the irradiation section The detection means comprises an imaging system and a colour image sensor for imaging the particles thereon using the electromagnetic radiation emitted by the particles. The colour image sensor comprises image elements for spectrally selective detection of the electromagnetic radiation imaged on the sensor image elements. The detection section comprises a luminous means or is made and arranged to detect particles of the ground material using a combination of transmitted and incident light. |
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Rye grain groats production method Invention relates to groats industry, in particular, to rye groats production. The method involves husking of rye grains cleared from impurities, the husking products separation with offal collection, the husked kernels crushing, the crushed kernels polishing and the polishing products sorting to produce rye groats and rye flour. A vertical husking machine with a coarse abrasive is used in the process of husking operation. A horizontal polishing machine with a finer abrasive is used in the process of polishing operation. Coarse offal is collected from the husker shell screenings, fine offal - from the husker shell through product. The husked kernels crushing is performed in an impact crusher with subsequent polishing of the crushing products and the polishing products separation into the following final products: graded rye groats and bakery rye flour. |
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Method of processing radio electronic crap Invention relates to combined methods of separation of solid materials, particularly, to processing of radio electronic scrap. Proposed method comprises primarily two-step separation of solid materials by hammer crushers to required size, magnetic and screen separation of ground scrap with subsequent pneumatic classification by bulk density of oversize and undersize products of screen classification. Note here that ground scrap fraction of boundary size obtained at pneumatic classification is subjected to additional grinding at ball mill to size of nonmetallic component of not over 1 mm. To isolate metallic component of processed scrap aforesaid ground fraction is subjected to pneumatic classification by bulk density. |
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Method of control over crusher and crusher Invention relates to grinding of materials. Proposed method relates to crusher composed by at least frame 6 and crushing tool actuator 10. Data on actuator and/or grinder power consumption, or grain-size characteristics, or amount of ground material are measured. RPM of grinder 4 is varied proceeding from said measured data. |
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Method of producing ultra disperse powders with narrow particle size distribution Invention relates to powder metallurgy, particularly, to production of powders of mean grain size in submicron range. Prepared bulk layer of initial powder is displaced by upward gas flow to the area of centrifugal forces developed by centrifugal classifier rotor. Portion of material is recycled to feed coarse particles back from said area to bulk layer. Fine particles are discharged by gas flow from said area. Used is powder material with mean particle size of 1-2 mcm, major portion of said particle is sized to 10-15 mcm. This process proceeds in two steps. For this working gas is, first heated to 90-100°C to disperse the material and dry it in compressed gas flow at 4-6 kg/cm2. Moisture content in gas flow at working zone inlet and outlet is continuously measured after release of particles therefrom. Centrifugal acceleration created by classifier rotor is set to (8.5-12)·104 m/s2. Mean size of particles in the flow is continuously measured as well as bulk concentration in said flow. Pulsation of bulk concentration is stabilised by increase in centrifugal acceleration to (12-16)·104 m/s2. With moisture content at gas flow inlet and outlet equalised, heating is terminated to start the second stage. Working pressure is increased to 6-8 kg/cm2. Mean particle size exceeds the preset value, amount of material fed to gas flow is decreased. This is performed by decreasing gradually the height of particle ingress zone to the level of 80-85 % of initial height. At further increase of mean particle size, centrifugal acceleration is increased to (16-19)·104 m/s2. At further increase in mean particle size or notable decrease in bulk concentration, the process is interrupted. |
Another patent 2513417.