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CN-121989391-A - Polymer material intelligent processing equipment

CN121989391ACN 121989391 ACN121989391 ACN 121989391ACN-121989391-A

Abstract

The invention discloses an intelligent processing device for high polymer materials, which belongs to the technical field of crushing devices and is used for solving the technical problems of skidding and wiredrawing during polytetrafluoroethylene crushing and grinding, the intelligent processing device for high polymer materials comprises a crushing mechanism, an embrittlement mechanism and a grinding mechanism, the crushing mechanism comprises a first shell, a pair of crushing rollers are rotationally connected to the first shell, and the space in the first shell is divided into a first cavity and a second cavity which are communicated with each other by the crushing rollers. The invention has the advantages that the problem of slippage of polytetrafluoroethylene fragments is avoided, the wire drawing phenomenon is restrained, the continuous and efficient crushing process is ensured, the polytetrafluoroethylene particles are easy to crush in the grinding stage by adopting a plasma embrittlement and liquid nitrogen freezing embrittlement two-stage embrittlement process, the sieve plate and nitrogen micro-positive pressure auxiliary sieving are combined, the target particle size powder can be stably obtained, and the particle size uniformity of the product is remarkably improved.

Inventors

  • WANG TIANZE
  • GAO WEIHONG

Assignees

  • 哈尔滨工程大学

Dates

Publication Date
20260508
Application Date
20260401

Claims (10)

  1. 1. High polymer material intelligent processing equipment, its characterized in that includes: The crushing mechanism comprises a first shell (5), a pair of crushing rollers (7) are rotatably connected to the first shell (5), the space in the first shell (5) is divided into a first cavity (501) and a second cavity (502) which are communicated with each other by the crushing rollers (7), a pressing plate (9) is slidably connected to the first cavity (501), and when the pressing plate (9) slides towards the crushing rollers (7), polytetrafluoroethylene raw materials in the first cavity (501) are pushed to enter between the pair of crushing rollers (7) to be crushed, and high pressure is formed in the second cavity (502); The device comprises an embrittlement mechanism, a first cooling device and a second cooling device, wherein the embrittlement mechanism comprises a plasma generation unit and a freezing unit, the plasma generation unit comprises a plasma generator and a plurality of plasma spray heads (10) fixedly arranged in a second cavity (502), the freezing unit comprises a liquid nitrogen tank (19), and the liquid nitrogen tank (19) sprays liquid nitrogen into the second cavity (502); the grinding mechanism comprises a second shell (27), a third shell (28) is fixedly connected to the opposite inner walls of the second shell (27), a rotating column (29) is rotationally connected to the third shell (28), and a plurality of striking plates (30) are fixedly connected to the rotating column (29).
  2. 2. The intelligent processing device for high polymer materials according to claim 1, wherein an air cylinder (8) and a pair of second motors (701) are fixedly installed on the first shell (5), a piston rod of the air cylinder (8) penetrates through the first shell (5) and is fixedly connected to the pressing plate (9), and a rotating shaft of the second motor (701) penetrates through the first shell (5) and is fixedly connected to the crushing roller (7); A feed channel (503) and a material leakage opening (504) are formed in the first shell (5), the feed channel (503) is communicated with the first cavity (501), and the material leakage opening (504) is communicated with the second cavity (502); The freezing unit further comprises a second pipe body (14) communicated with the material leakage opening (504), a first electromagnetic valve (15), a second electromagnetic valve (16) and a plurality of liquid nitrogen spray heads (1401) are fixedly installed on the second pipe body (14), a fifth pipe body (20) communicated with the liquid nitrogen spray heads (1401) is fixedly connected to the liquid nitrogen tank (19), and a third electromagnetic valve (21) and a liquid nitrogen pump (22) are fixedly installed on the fifth pipe body (20).
  3. 3. The intelligent processing equipment for the high polymer materials according to claim 2, wherein the crushing mechanism further comprises a rotary tank (3), a partition plate (4) is fixedly connected to the inner wall of the rotary tank (3), a plurality of first shells (5) are arranged, and a plurality of first shells (5) are fixedly arranged on the partition plate (4); A first pipe body (6) communicated with the feeding channel (503) is fixedly connected to the first shell (5), and a fourth through hole (301) matched with the first pipe body (6) is formed in the rotary tank (3); The liquid nitrogen tank (19) is fixedly arranged on the tank bottom wall of the rotary tank (3), a fourth pipe body (1901) is fixedly connected to the liquid nitrogen tank (19), and a stop valve (1902) is fixedly connected to the fourth pipe body (1901).
  4. 4. A polymer material intelligent processing device according to claim 3, wherein the polymer material intelligent processing device further comprises a fixed tank (1), and the rotary tank (3) is rotatably connected in the fixed tank (1); The fixed tank (1) is fixedly provided with a first motor (2), the fixed tank (1) is provided with a first through hole (101), a second through hole (102) and a third through hole (103), and a rotating shaft of the first motor (2) penetrates through the first through hole (101) and is fixedly connected to the rotating tank (3); The second through hole (102) is matched with the fourth through hole (301); one end of the second pipe body (14) far away from the first shell (5) penetrates through the third through hole (103).
  5. 5. The intelligent processing device for the high polymer material according to claim 4, wherein a pair of first fixing rings (23) are fixedly connected to the inner wall of the fixing tank (1), a second rotating groove (24) is formed between the pair of first fixing rings (23), a rotating ring (302) matched with the second rotating groove (24) is fixedly connected to the rotating tank (3), and the rotating ring (302) is rotatably connected to the second rotating groove (24).
  6. 6. The intelligent processing device for the high polymer materials according to claim 4, wherein a second fixing ring (25) is fixedly connected to the inner wall of the fixing tank (1), a collecting ring (26) is embedded in the second fixing ring (25), a power supply module (11) is fixedly installed on the partition plate (4), a wire tube (12) is fixedly connected to the power supply module (11), one end, far away from the power supply module (11), of the wire tube (12) penetrates through the tank wall of the rotating tank (3), and a pair of brushes (13) in sliding contact with the collecting ring (26) are fixedly connected to the wire tube (12).
  7. 7. The intelligent processing device for the high polymer material according to claim 4, wherein a hopper (18) matched with the third through hole (103) is fixedly connected to the fixed tank (1), and one end of the hopper (18) far away from the fixed tank (1) is communicated with the third shell (28); A third chamber (2701) is formed between the second shell (27) and the third shell (28), and a sieve plate (2801) communicated with the third chamber (2701) is arranged on the third shell (28); and a discharge valve (31) is fixedly arranged on the second shell (27).
  8. 8. The intelligent processing device for the high polymer materials according to claim 4, wherein a first rotating groove (104) communicated with the third through hole (103) is formed in the tank bottom wall of the fixed tank (1), a plurality of rotating discs (17) are fixedly connected to the second pipe bodies (14), and the rotating discs (17) are rotatably connected in the first rotating groove (104).
  9. 9. The intelligent processing device for the high polymer materials according to claim 4, wherein an opening (105) matched with the stop valve (1902) is formed in the fixed tank (1).
  10. 10. The intelligent processing device for high molecular materials according to claim 4, wherein the intelligent processing device for high molecular materials further comprises: The storage tank (33), a seventh pipe body (331), an electromagnetic pressure reducing valve (332) and a sixth pipe body (32) are fixedly connected to the storage tank (33), one end, far away from the storage tank (33), of the sixth pipe body (32) is communicated with the third cavity (2701), and a filter element (321) is arranged at one end, close to the first shell (27), of the sixth pipe body (32); The seventh pipe body (331) is communicated with the feeding auger (34), one end of the feeding auger (34) is fixedly connected to the fixed tank (1), and is communicated with the second through hole (102) and used for conveying polytetrafluoroethylene to the crushing mechanism.

Description

Polymer material intelligent processing equipment Technical Field The invention relates to the technical field of crushing equipment, in particular to intelligent processing equipment for high polymer materials. Background Polytetrafluoroethylene is known as plastic king by virtue of excellent chemical stability as a polymer material with very special properties, and is widely applied to various fields of daily life and industrial production. Since polytetrafluoroethylene production feedstock originates from non-renewable minerals and has been incorporated into strategic mineral listings, the importance of its recycling is increasingly evident. Practices show that the recovery and reprocessing cost of polytetrafluoroethylene is only 50% -60% of that of original production, so that the production cost can be greatly reduced, the dependence on strategic mineral products can be relieved, the environmental hazard caused by polytetrafluoroethylene waste can be effectively solved, the fluorine-containing high polymer material industry is promoted to change from a resource consumption type to a circulating sustainable type, and the method has become a core trend of the development of the global fluorine-containing material industry. When the existing crushing equipment is used for processing polytetrafluoroethylene, the polytetrafluoroethylene is usually cut into small blocks by a cutter, then the small blocks are put into the crushing equipment to be manufactured into small particles, and finally the small particles are ground into powder by a grinding device. However, in the small particle processing and powder grinding stage, the phenomena of slipping and wiredrawing of equipment are common, so that the crushing and grinding efficiency is low, and the stable preparation of a product meeting the requirement of the target particle size is difficult. In addition, friction heat generated in the crushing and grinding processes can cause toxic gas release, so that the physical health of operators is jeopardized, and the environment is polluted. Therefore, aiming at the technical problems, it is necessary to provide an intelligent processing device for the high polymer material. Disclosure of Invention Aiming at the defects in the prior art, the invention aims to provide the intelligent processing equipment for the high polymer material, so as to solve the problems in the background art. In order to solve the technical problems, the invention adopts the following technical scheme: The invention provides high polymer material intelligent processing equipment which comprises a crushing mechanism, an embrittlement mechanism and a grinding mechanism, wherein the crushing mechanism comprises a first shell, a pair of crushing rollers are connected in a rotating mode in the first shell, the space in the first shell is divided into a first cavity and a second cavity which are communicated with each other by the crushing rollers, a pressing plate is connected in a sliding mode in the first cavity, when the pressing plate slides towards the crushing rollers, polytetrafluoroethylene raw materials in the first cavity are pushed to enter between the pair of crushing rollers to be crushed, high pressure is formed in the second cavity, the embrittlement mechanism comprises a plasma generating unit and a freezing unit, the plasma generating unit comprises a plasma generator and a plurality of plasma spray heads fixedly arranged in the second cavity, the freezing unit comprises a liquid nitrogen tank, liquid nitrogen is sprayed into the second cavity by the liquid nitrogen tank, a rotating column is connected in a rotating mode on the inner wall opposite to the second shell, and a plurality of striking plates are fixedly connected to the rotating column. The feeding mechanism feeds polytetrafluoroethylene fragments into the crushing mechanism, the polytetrafluoroethylene fragments are actively extruded through the pressing plate, the polytetrafluoroethylene fragments are forced to enter the gap of the crushing roller, the problem of slippage of the polytetrafluoroethylene fragments is avoided, meanwhile, the temperature of the polytetrafluoroethylene fragments is reduced through liquid nitrogen precooling and low-temperature nitrogen circulation, the wire drawing phenomenon is restrained, and the continuous and efficient crushing process is ensured. In one or more embodiments of the invention, a cylinder and a pair of second motors are fixedly arranged on the first shell, a piston rod of the cylinder penetrates through the first shell and is fixedly connected to the pressing plate, a rotating shaft of the second motors penetrates through the first shell and is fixedly connected to the crushing roller, a feeding channel and a material leakage opening are formed in the first shell, the feeding channel is communicated with the first cavity, the material leakage opening is communicated with the second cavity, the refrigerating unit furthe