RU2008982C1 - Aerodynamic loose material enrichment plant - Google Patents

Abstract

FIELD: enrichment technology. SUBSTANCE: plant has a pneumatic heater, a load bunker, an acceleration tube with devices for additional material cleaning due to its shock action. The devices are made in the form of periodically positioned inclined baffle shelves and hollows located opposite to them in the lower part of the acceleration tube. The plant also has a separation chamber, a vacuum chamber with a discharge device in the form of a pulser. The acceleration tube may be made from separate members connected through a bayonet joint. EFFECT: improved separation quality. 3 cl, 1 dwg

Description

 The invention relates to a device for the enrichment of bulk materials and can be widely used in construction, metallurgy, chemical and mining industries and other sectors of the economy.

 Known plants for the enrichment of materials containing a frame, loading and unloading pipes, conveyors, a booster pipe with heaters, a pneumatic blower with a heater, a dust fan and an aspiration system.

 The disadvantages of these installations are: limited use, high material consumption, low productivity and insufficient quality of cleaning.

 The closest technical solution known (prototype) is a plant for the enrichment of bulk materials, including a loading hopper and a biconical chamber with a baffle plate, a booster pipe and an aspiration system.

 The disadvantages of this installation are the low quality of enrichment and limited application.

 The aim of the invention is to improve the quality and expansion of functionality.

 This goal is achieved by the fact that the installation is equipped with a conical nozzle fixed with a large base to the output end of the booster pipe and a vacuum chamber connected to the lower part of the bioconical separation chamber by means of a pulsator and made with a discharge device in the form of a pulsator, with each device for additional cleaning material is made in the form of a recess in the lower part of the booster pipe, one of the walls of which is located oppositely to the material flow and perpendicular to the bottom of the booster oh pipe and jack shelf, located opposite the recess.

 The novelty of the claimed device lies in the listed set of features, the implementation of which can improve the quality and expand the boundaries of application.

 A significant difference between the claimed technical solution and the known ones is to supply the installation with dust collectors, a nozzle and a vacuum chamber.

 The drawing schematically shows a General view of an aerodynamic installation.

 The aerodynamic installation for the enrichment of bulk materials consists of a pneumatic blower 1 with an accelerating pipe 2, on which a loading hopper 3, dust collectors 4 with V-shaped rotary partitions 5 and power cylinders 6, a nozzle 7 and which is inserted into the bioconical separation chamber 8 with a baffle plate are installed 9, connected through a pulsator 10 with a vacuum chamber 11, an unloading pipe 12, and the connection of the booster pipe and pipes made by bayonet 13.

 Aerodynamic installation for the enrichment of bulk materials is as follows. Bulk material under its own weight enters the loading hopper 3, where, pouring along the shelves, it is preliminarily cleaned of large dusty particles that are removed into the aspiration system. Then the bulk material enters the booster pipe 2, where it is picked up by a high-speed air stream from the pneumatic blower 1 and moves along the pipe, in which the grains of material in the air turbulent material collide with each other, especially in the area of the V-shaped rotary partitions 5 of the dust collectors 4, where it is adjustable the process occurs according to the Bernoulli laws, after which the grains fall into the bioconical separation chamber 8, in which they hit the breaker shield 9 and are further cleaned of dusty particles removed by aspiration nnuyu system and refined grains fall through the pulsator 10 and fed into the vacuum chamber 11, wherein the microparticles are removed from the grain moisture and aerosols, and then through the pulsator and unloading pipe 12 dry, clean and very pure chemically active grain bulk material comes to the consumer.

 If necessary, the intensity of dust removal and moisture removal are regulated by turning the V-shaped partitions 5 of the dust collectors 4, discharge from the suction system and the vacuum chamber.

 Known serial domestic and foreign devices for drying and cleaning. In particular, the drying unit D-588, which is designed for drying and heating bulk materials. This unit has low productivity, high fuel consumption and high material consumption.

 In addition, the inertial inclined two-tier screen SMD-121 (GIS-52) and the Werner installation (Germany), which provide only partial enrichment, are widely known.

 The technical and economic efficiency of the application of the proposed device for the enrichment of bulk materials in comparison with the prototype (base object), analogs and serial devices is provided by improving the quality of enrichment due to intensive aerodynamic effects under vacuum vacuum conditions, which ensures the production of highly pure and chemically active bulk materials.

 In addition, the expansion of the boundaries of application is achieved due to the adjustable dust collectors, collapsible elements, the use of a vacuum chamber and bionettes. (56) Copyright certificate of the USSR N 1829211, cl. B 07 B 4/08, 1988.

Claims (3)

 1. AERODYNAMIC PLANT FOR THE ENRICHMENT OF BULK MATERIALS, including a sequentially installed pneumatic blower, an accelerating tube with a loading hopper and periodically arranged devices for additional cleaning of the material, a biconical separation chamber with a baffle plate and outlet pipes for separated products, characterized in that, in order to improve the quality of separation , the installation is equipped with a conical shaped nozzle, fixed by a large base to the output end of the booster pipe, and a vacuum chamber, with united with the lower part of the biconical separation chamber by means of a pulsator and made with a discharge device in the form of a pulsator, with each device for additional cleaning of the material made in the form of a recess in the lower part of the booster pipe, one of whose walls is opposite to the material flow and perpendicular to the bottom of the booster pipe , and a jack shelf located opposite the recess.  2. Installation according to claim 1, characterized in that the fender shelves are made in a V-shape and installed with the possibility of changing the angle of inclination.  3. Installation according to claim 1, characterized in that the booster pipe is made of separate elements, while the latter are connected to each other and to the outlet pipes of the separated products via a bayonet connection to the separation chamber.

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