Dry rub-off machine

FIELD: machine building.

SUBSTANCE: 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.

EFFECT: higher efficiency of rubbing-off and separation.

1 dwg

 

The invention relates to the field of engineering, namely, devices for dry cleaning and mineral processing - tirocinium machines and can be used for enrichment of various bulk materials, for example, for the enrichment of glass sand.

A known machine for wet Attiki containing two rectangular in cross section chambers separated by a partition with a window in the lower part, the spindles located in the cells and consisting of an upper hollow shaft and a metal shaft inside the hollow shaft, and an impeller mounted on both shafts, means for feeding the pulp located in the upper part of the first chamber, means for output of pulp, located in the upper part of the second chamber, and the actuator that provides the rotation shaft with impellers in opposite directions (Awts of the USSR №411903, WV 3/36, published 25.01.1974).

However, the known octorojna machine is characterized by low efficiency Attiki material and structural complexity. Low efficiency due to the rectangular shape of the cells and the presence of parasitic gaps in these cells. In addition, the machine does not provide a high efficiency Attiki surface particles from the oxide films due to the fact that the liquid phase eliminates more than one-third the weight of the particles, and a layer of liquid between the particles which prevents their mutual interaction. As the design complexity stems from the fact that due to the presence of two shafts rotating in opposite directions, the machine contains a complex gearboxes. In addition, the wet attire is not possible to split the material into two fractions: the finished product and the clay component, and therefore the output of the known machines it is necessary to install additional equipment for material separation.

A known machine for wet Attiki containing cylindrical body, a working body in the form of a rotor with centrifugal blades, located on the shaft at the bottom of the housing for mixing the material, a pipe for supplying the source material located directly above the rotor ribs for imparting turbulence to the material, radially arranged in the conical part of the casing, a nozzle for outputting the processed material located in the upper part of the housing, and the drive rotor located above the upper part of the body, the lower part of the housing is filled with granules made of solid material (RF Patent for useful model №73226, WV 5/02, published 20.05.2008).

However, this octorojna machine is characterized by high abrasive wear of the working body. Machine does not provide a high efficiency Attiki surface particles from the oxide films due to the fact that the liquid phase eliminates Bo is her third of the weight of the particles, and the layer of liquid between the particles prevents their mutual interaction. In addition, the wet attire is not possible to split the material into two fractions: the finished product and the clay component, and therefore the output of the known machines it is necessary to install additional equipment to separate the material into fractions.

The objective of the invention is to substantially reduce the abrasive wear of the working body by eliminating the interaction of the working body with the processed material, to increase the efficiency of Attiki material and separation of material on the fraction of the finished product and the fine dust fraction directly in attheraces car through the implementation process Attiki material dry method.

The invention consists in that task by the specified technical result machine for dry Attiki containing a cylindrical housing, a rotor with blades, located on the shaft in the casing, a pipe for supplying the source material, a pipe for removing material, and the drive of the rotor, characterized in that the rotor is constructed in the form of a cylinder with height equal to the area of Attiki, and is provided with radial vanes, contains a source material dispenser, made in the form of a fixed cone and located directly above rotora is, the annular shelf, located on the side wall of the housing, a nozzle for outputting small dust-like fraction together with the air flow, located in the upper housing, industrial fan, technologically connected with the pipe for removal of small dust-like fraction together with the air flow, the pipe for supplying the source material is located directly above the distributor of the source material, a nozzle for outputting the final product is located in the lower part of the body.

The invention is illustrated in the drawing is a General view of the machine, a vertical radial section.

Machine for dry Attiki comprises a cylindrical housing 1, a pipe 2 for supplying the source material located in the upper part of the body 1, the ring 3 shelves, fitted on the side wall of the housing 1, the nozzle 4 to output the finished product, located in the lower part of the housing 1, the pipe 5 to output the fine dust fraction together with the air flow, located in the upper part of the housing, a rotor with radial vanes 6, located in the housing 1 on a vertical shaft 7, the valve 8 of the source material located under the pipe 2 for supplying the source material and directly above the rotor and is made in the form of a fixed cone fixed on the housing 1, the actuator (not shown) of the working body and the industry is built fan (not shown), technologically connected with the pipe 5 to output the fine dust fraction together with the air flow.

The invention is used as follows.

At the outlet of the nozzle 5, to output the fine dust fraction together with the air flow through industrial fan creating a vacuum, which provides movement in the car air stream to the desired design speed from the bottom up. The rotor through the drive gives the rotation with the desired process speed. Then through the pipe 2 from the source material fed to the distributor 8, which provides the distribution of source material circumferentially along the side wall of the housing 1. Under the influence of gravitational forces, the material moves down, persipasi on ring 3 shelves. Under the influence of the airflow generated by the blades 5 of the rotating rotor, the particles acquire the horizontal component of speed. Moving along the side wall of the housing 1 particles acquire a different speed due to the inhibitory effect of the wall of the housing 1 and the spin of the air flow. On the ring 3 shelves material intensively mixed, which provides intensive ottico source material in full. The surface of the particles of source material is cleaned from harmful with the other commercial (clay component and the oxide film), representing small dust particles. In addition, 3 shelves help to remove particles of material from the side wall of the housing 1 and the flow in the vertical upward air flow. Thus, the raw material is divided into small dust particles and large peeled particles of the finished product.

Small dust particles are taken up by the vertical upward air flow through the nozzle 5 are removed from the machine. Next, using standard equipment (cyclones and/or filters) air flow cleaned from dust.

Peeled large particles under the influence of gravitational forces moved down the machine and Peresada on the shelves 3 which helps to increase the residence time of the material in attheraces zone. Vertical upward flow of air reduces the speed of large particles, which also helps to increase the time they spend in attheraces area and more thorough cleaning of the material. Through pipe 4 large particles prepared fractions are removed from the machine.

Ring 3 shelves also help protect the side wall of the housing 1 from abrasion due to the education they fixed the layer of material.

Border size provided by the air of small particles can be modified within wide limits by varying the speed of the air flow in the region of Attiki.

The blades 6 of the rotor during operation do not interact with the material and not exposed to abrasive wear, which significantly increases the service life of the rotor compared to the prototype.

Thus, the invention allows to carry out the dry ottico source material, for example, quartz sand and output separately from the machine fine dust fraction and a large fraction of the finished product.

Machine for dry Attiki containing a cylindrical housing, a rotor with blades, located on the shaft in the casing, a pipe for supplying the source material, a pipe for removing material, and the drive of the rotor, wherein the rotor is constructed in the form of a cylinder with height equal to the area of Attiki, and is provided with radial vanes, contains a source material dispenser, made in the form of a fixed cone and located directly above the rotor, the annular shelf, located on the side wall of the housing, a nozzle for outputting small dust-like fraction together with the air flow, located in the upper housing, industrial fan, technologically associated with the chute for removal of small dust-like fraction together with the air flow, the pipe for supplying the source material is located directly above the distributor of the source material, a nozzle for outputting the final product is located in the bottom portion of the housing.



 

Same patents:

FIELD: process engineering.

SUBSTANCE: 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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FIELD: process engineering.

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1 dwg

FIELD: process engineering.

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4 cl, 2 dwg

FIELD: metallurgy.

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4 tbl

FIELD: oil and gas industry.

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8 cl, 4 dwg

FIELD: process engineering.

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1 dwg, 3 tbl, 3 ex

FIELD: process engineering.

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2 cl, 1 dwg, 2 tbl, 18 ex

FIELD: process engineering.

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1 tbl

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7 cl, 2 dwg

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11 cl, 2 dwg, 1 ex

FIELD: chemistry.

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10 cl, 6 dwg, 1 tbl

FIELD: process engineering.

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3 cl, 1 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to production of nano-sized diamonds. Proposed method comprises crushing diamonds in mill, chemical treatment, removal of supernatant fluid, rinsing produced nano diamonds and their drying. Prior to crushing, initial diamonds are mixed with ground ballast high-hardness substance. Crushing is carried out in vibration mill. Chemical treatment is performed in acid to dissolve particles of said ballast substances and other impurities originating in crushing.

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7 cl

FIELD: medicine, pharmaceutics.

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21 cl, 3 dwg, 2 tbl, 5 ex

FIELD: technological processes.

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EFFECT: inventions provide for high efficiency of grinding process of mechanical rubber goods with various thickness, increased efficiency, reduction of power inputs, reduced extent of environment pollution and possibility to reuse recycling products.

5 cl, 1 dwg

FIELD: technological processes.

SUBSTANCE: invention is related to equipment for fine and ultrafine crushing of materials and may be used in various industries, for instance construction industry, food, medicine, chemical, mining and other industries. Process line for mechanical activation and crushing of materials comprises device for mechanical activation and crushing of materials, system of classifiers with a fine filter for gas components or air connected to them. Filters are connected by means of product line to cavity of body of device for mechanical activation and crushing of materials. Ioniser for supply of ionised gas components or air for recombination with charged particles is connected to cavity of device for mechanical activation and crushing of materials and to reservoir of gas components supply. Device for mechanical activation and crushing of materials comprises two disk rotors coaxially installed on hollow horizontal shafts with opposite direction of rotation, which are arranged to each other with a technological clearance and are installed in hollow body. Each rotor has open annular channels on inner surface, which form annular crushing chambers together with open annular channels of the second rotor, and the chambers are connected to each other by means of speed up channels tangentially arranged with inclination towards rotor rotation, which are closed by annular labyrinth seals. One of rotors is arranged with closed channels for pressurised supply of ionised gas components into annular crushing chamber or air from horizontal shaft of ioniser communicated to cavity. Inner surface of each annular crushing chamber is arranged as corrugated along its length in the form of transversely arranged circular indents and ledges, which provide for direction of crushed particles motion towards centre of crushing chamber and action of axial oscillations to prevent sticking of crushing chamber walls and clumping of particles to each other.

EFFECT: increased efficiency of mechanical activation and crushing and reduced energy intensity and metal intensity and improvement of crushing product.

3 cl, 4 dwg

FIELD: technological processes.

SUBSTANCE: invention relates to devices for mechanical activation and crushing of materials with various hardness and may be used in power engineering, construction, mining, metallurgical, chemical industry, medicine and other industries in production of high-quality produce, and also for production of finely dispersed multi-component mixtures of various minerals, polymers and powders. Device for mechanical activation and crushing of materials comprises two disk rotors coaxially installed on hollow horizontal shafts with opposite direction of rotation. Rotors are arranged to each other with technological gap, are installed in hollow body, and each has open circular channels on inner surface, which arrange annular crushing chambers together with open circular channels of the second rotor. Crushing chambers are communicated to each other by speed-up channels arranged tangentially with inclination towards rotor rotation, closed by circular labyrinth seals. One of rotors is arranged with closed channels for pressurized supply of ionised gas components into annular crushing chamber or air from horizontal shaft of ioniser communicated to cavity. Inner surface of each annular crushing chamber is arranged as corrugated along its length in the form of transversely arranged circular indents and ledges, which provide for direction of crushed particles motion towards centre of crushing chamber and action of axial oscillations for sticking of crushing chamber walls and clumping of particles to each other.

EFFECT: improved efficiency, reduction of energy intensity and production of high quality product of crushing.

2 cl, 3 dwg

FIELD: technological processes.

SUBSTANCE: method for crushing of mineral raw materials includes supply of crushed material of at least one surface-active substance in mill and wet crushing. Surface-active substances used are fluoridised monatomic spirits of limit row with common formula H-(CF2CF2)n-CH2-OH, where n=1÷5, in amount of 25÷100 g per ton of crushed material.

EFFECT: higher efficiency of enrichment process due to higher selectivity of useful component opening, improved extraction and better quality of concentrate in further enrichment.

1 cl, 1 tbl

FIELD: mixes for crushing porous rock; mining industry.

SUBSTANCE: proposed mix contains the following constituents, mass-%: sulfite-cellulose liquor, 1.0-1.5; soot, 8.0-12.0; caustic soda, 8.0-12.0; the remainder being unslaked lime.

EFFECT: facilitated process of crushing porous rock.

1 tbl

FIELD: crushing and grinding of various materials; food-processing industry; construction engineering; chemical industry; reworking of secondary wastes.

SUBSTANCE: proposed plant includes the following units connected in succession: proportioning unit, preliminary cooling chamber and grinding chamber and reservoir filled with liquid cryogenic agent. This reservoir is equipped with inner cylinder having blind cover and holes over perimeter for outlet of liquid cryogenic agent to cylinder, outer and inner resistive heaters wound on this cylinder and connected to monitoring and control unit; it is also provided with tube mounted vertically inside cylinder and intended for delivery of liquid and gaseous cryogenic agent to chambers of plant, electric valve connected to monitoring and control unit and used for control of pressure in reservoir by means of bypassing excessive pressure to preliminary cooling chamber.

EFFECT: enhanced homogeneity of grinding at retained properties of materials.

2 dwg

FIELD: crushing and grinding of various materials; food-processing industry; construction engineering; chemical industry; reworking of secondary wastes.

SUBSTANCE: proposed plant includes the following units connected in succession: proportioning unit, preliminary cooling chamber and grinding chamber and reservoir filled with liquid cryogenic agent. This reservoir is equipped with inner cylinder having blind cover and holes over perimeter for outlet of liquid cryogenic agent to cylinder, outer and inner resistive heaters wound on this cylinder and connected to monitoring and control unit; it is also provided with tube mounted vertically inside cylinder and intended for delivery of liquid and gaseous cryogenic agent to chambers of plant, electric valve connected to monitoring and control unit and used for control of pressure in reservoir by means of bypassing excessive pressure to preliminary cooling chamber.

EFFECT: enhanced homogeneity of grinding at retained properties of materials.

2 dwg

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