A waste salt pyrolysis device for polyphenylene sulfide production

Abstract

The present application relates to waste salt pyrolysis technical field, disclose a kind of waste salt pyrolysis device for polyphenyl sulfide production, including feed tank and pyrolysis box, the top of the feed tank is fixedly installed with the feed hopper being communicated with its interior, further comprising: distributing hopper, the distributing hopper is movably installed in the interior of feed tank, the top of the distributing hopper is fixedly installed with filter plate, the side adjacent to the feed tank and pyrolysis box is penetrated and is provided with connecting port.The present application is moved synchronously by guide rod when being shaken up and down on distributing hopper and drives movable plug, so that movable plug sucks external water source into piston cylinder by guide pipe, and then water source is extruded into spray pipe by hose and water pipe, and water mist is sprayed by multiple spray heads to wet waste salt powder, to avoid waste salt powder softened and fused after being heated, adhere to conveying belt, so that material cannot normally flow, heat seriously uneven, force production line to stop and clear blockage.

Description

Technical Field

[0001] This invention relates to the field of waste salt pyrolysis technology, and in particular to a waste salt pyrolysis apparatus for the production of polyphenylene sulfide. Background Technology

[0002] The waste salt pyrolysis unit for polyphenylene sulfide (PPS) production is mainly used to treat the waste salt generated during the PPS production process. Through pyrolysis, harmful substances in the waste salt can be decomposed, thereby reducing pollution and protecting the environment.

[0003] An existing waste salt pyrolysis device for polyphenylene sulfide production (publication number: CN222551659U) has at least the following drawbacks: The aforementioned patent drives a drive shaft to rotate inside a sleeve support box via a drive motor. At the same time, the drive shaft drives the first transmission auger to rotate. When the first transmission auger rotates, it can carry the linkage gear ring to rotate. The first and second transmission augers rotate inside the pyrolysis box, resulting in a wider pyrolysis conveying area and a larger amount of pyrolysis waste salt. However, because the waste salt powder is very easy to soften and melt after being heated, it adheres to the furnace wall and conveying equipment like dough, causing the material to be unable to flow normally and to be heated unevenly. Ultimately, this blocks the feed inlet and discharge outlet, forcing the production line to stop for cleaning. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a waste salt pyrolysis device for the production of polyphenylene sulfide.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A waste salt pyrolysis device for polyphenylene sulfide (PPS) production includes a feed box and a pyrolysis tank. A feed hopper connected to the top of the feed box is fixedly installed therein. The device also includes: The material distribution hopper is movably installed inside the feed box. A filter plate is fixedly installed on the top of the material distribution hopper. A connection port is provided through the feed box on the side adjacent to the pyrolysis box. The discharge end of the material distribution hopper extends into the pyrolysis box from the connection port. A spraying mechanism is used to wet the waste salt powder in the distribution hopper. The spraying mechanism includes a water inlet pipe that is fixedly installed through the bottom of the distribution hopper. A spraying pipe that communicates with the inside of the water inlet pipe is fixedly installed at the top of the water inlet pipe. Several spraying heads are evenly fixedly installed through the outer surface of the spraying pipe.

[0006] As a further embodiment of the present invention, a plurality of tension spring rods are fixedly installed on the bottom wall of the feeding box, and the telescopic ends of the plurality of tension spring rods are fixedly installed with the bottom of the distributing hopper. A shaking component that drives the distributing hopper to shake is installed inside the feeding box.

[0007] As a further embodiment of the present invention, the shaking component includes a support shaft that is rotatably mounted between the inner walls of opposite sides of the feed box, and a plurality of eccentric wheels are uniformly fixedly mounted on the outer surface of the support shaft, with the bottom of the distributing hopper abutting against the outer periphery of the eccentric wheels.

[0008] As a further embodiment of the present invention, a stepper motor is fixedly installed on the outer surface of the feed box, and the output end of the stepper motor is fixedly installed with the rotation center of the support shaft.

[0009] As a further embodiment of the present invention, a piston cylinder is fixedly installed on the bottom wall of the feed box, a guide rod is fixedly installed on the bottom end of the distribution hopper, a movable plug is fixedly installed on the bottom end of the guide rod, the movable plug is slidably installed on the inner wall of the piston cylinder, a flexible hose is fixedly installed through the outer surface of the piston cylinder near its bottom, the flexible hose is connected to the inside of the water inlet pipe, a first one-way valve for unidirectional flow into the water inlet pipe is installed on the flexible hose, and a guide tube is fixedly installed through the outer surface of the piston cylinder near the flexible hose, a second one-way valve for unidirectional flow into the piston cylinder is installed on the guide tube.

[0010] As a further embodiment of the present invention, two C-shaped plates are symmetrically fixedly installed on both sides of the top of the filter plate, and a rotating shaft is rotatably installed through the two C-shaped plates. Several crushing rods are uniformly fixedly installed on the outer periphery of the rotating shaft, and a transmission assembly is installed between the rotating shaft and the feed box.

[0011] As a further embodiment of the present invention, the transmission assembly includes a one-way bearing installed at the end of the rotating shaft, the rotating shaft is equipped with a transmission gear that can rotate in one direction via the one-way bearing, and a transmission rack is fixedly installed on the inner wall of the feed box, the transmission gear meshing with the transmission rack.

[0012] As a further embodiment of the present invention, multiple rotating plates are uniformly rotatably installed between the inner walls of opposite sides near the bottom of the hopper.

[0013] As a further embodiment of the present invention, an electric heating plate is fixedly installed on the top wall of the pyrolysis box, and two support rollers are rotatably installed on the inner wall of the pyrolysis box. A conveyor belt is sleeved on the outer surface of the two support rollers, and a pulley is fixedly installed on the rotation center of one of the support rollers and the support shaft. A transmission belt is sleeved between the outer surfaces of the two pulleys.

[0014] The beneficial effects of this invention are as follows: 1. When the hopper shakes up and down, the guide rod drives the movable plug to move synchronously, so that the movable plug draws the external water source into the piston cylinder through the guide tube, and then squeezes the water source into the spray pipe through the hose and water inlet pipe. Multiple spray heads spray water mist to wet the waste salt powder, so as to prevent the waste salt powder from softening and melting after being heated and adhering to the conveyor belt, which would cause the material to not flow normally, heat unevenly, and force the production line to stop to clear the blockage. 2. When the feed hopper moves up and down, it will drive the rotating shaft to move up and down through the C-shaped plate. When the rotating shaft moves up, the transmission gear will idle under the action of the one-way bearing; when the rotating shaft moves down, the rotating shaft will rotate through the one-way bearing, so that the crushing rod installed on the outside of the rotating shaft will break up the waste salt clumps on the filter plate, so as to avoid incomplete pyrolysis of the waste salt clumps in the future. 3. The support shaft is driven to rotate by a stepper motor, which causes the eccentric wheel installed on the outer periphery of the support shaft to shake the entire distribution hopper up and down, so that the filter plate screens the waste salt. The waste salt powder falls into the distribution hopper, while large particles of waste salt fall directly from the connection port onto the conveyor belt in the pyrolysis box, where the waste salt is pyrolyzed by the electric heating plate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a waste salt pyrolysis device for polyphenylene sulfide production proposed in this invention. Figure 2 This is a schematic diagram of the internal structure of a waste salt pyrolysis device for polyphenylene sulfide production proposed in this invention. Figure 3 This is a schematic diagram of the internal structure of the feed box of a waste salt pyrolysis device for polyphenylene sulfide production proposed in this invention; Figure 4 This is a schematic diagram of the crushing rod structure of a waste salt pyrolysis device for polyphenylene sulfide production proposed in this invention; Figure 5 This is a schematic diagram of the eccentric wheel structure of a waste salt pyrolysis device for polyphenylene sulfide production proposed in this invention; Figure 6 This is a schematic diagram of the piston cylinder structure of a waste salt pyrolysis device for polyphenylene sulfide production proposed in this invention; Figure 7 for Figure 4 Enlarged view of the structure at point A in the middle.

[0016] In the diagram: 1. Feed box; 2. Pyrolysis box; 3. Feed hopper; 4. Connection port; 5. Distribution hopper; 6. Filter plate; 7. Heating plate; 8. Support roller; 9. Conveyor belt; 10. Rotary plate; 11. Tension spring rod; 12. Support shaft; 13. Eccentric wheel; 14. Stepper motor; 15. Piston cylinder; 16. Guide rod; 17. Movable plug; 18. Hose; 19. Water inlet pipe; 20. Spray pipe; 21. Spray head; 22. Guide tube; 23. First one-way valve; 24. Second one-way valve; 25. C-shaped plate; 26. Rotating shaft; 27. Crushing rod; 28. One-way bearing; 29. ​​Transmission gear; 30. Transmission rack; 31. Pulley; 32. Transmission belt. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] See attached document Figure 1 -Appendix Figure 7 A waste salt pyrolysis device for polyphenylene sulfide (PPS) production includes a feed box 1 and a pyrolysis box 2. A feed hopper 3, connected to the interior of the feed box 1, is fixedly installed at the top of the feed box 1. The device also includes: The feed hopper 5 is movably installed inside the feed box 1. A filter plate 6 is fixedly installed on the top of the feed hopper 5. A connection port 4 is opened through the feed box 1 on the side adjacent to the pyrolysis box 2. The discharge end of the feed hopper 5 extends into the pyrolysis box 2 from the connection port 4. The spraying mechanism is used to wet the waste salt powder in the distribution hopper 5. The spraying mechanism includes a water inlet pipe 19 that is fixedly installed through the bottom of the distribution hopper 5. A spray pipe 20 that communicates with the inside of the water inlet pipe 19 is fixedly installed at the top of the water inlet pipe 19. Several spray heads 21 are evenly fixedly installed through the outer surface of the spray pipe 20.

[0020] In this embodiment, multiple tension spring rods 11 are fixedly installed on the bottom wall of the feed box 1. The telescopic ends of the multiple tension spring rods 11 are fixedly installed with the bottom of the distribution hopper 5. A shaking component that drives the distribution hopper 5 to shake is installed inside the feed box 1. The shaking component includes a support shaft 12 that is rotatably installed between the inner walls of opposite sides of the feed box 1. Multiple eccentric wheels 13 are evenly fixedly installed on the outer surface of the support shaft 12. The bottom of the distribution hopper 5 abuts against the outer periphery of the eccentric wheels 13. A stepper motor 14 is fixedly installed on the outer surface of the feed box 1. The output end of the stepper motor 14 is fixedly installed with the rotation center of the support shaft 12.

[0021] In use, waste salt is poured from the feed hopper 3 into the feed box 1. The waste salt falls onto the filter plate 6. The stepper motor 14 drives the support shaft 12 to rotate, causing the eccentric wheel 13 installed on the outer periphery of the support shaft 12 to drive the distribution hopper 5 to shake up and down, so that the filter plate 6 screens the waste salt. The waste salt powder falls into the distribution hopper 5, while large particles of waste salt fall directly from the connection port 4 onto the conveyor belt 9 in the pyrolysis box 2. The waste salt is then pyrolyzed by the electric heating plate 7.

[0022] In this embodiment, a piston cylinder 15 is fixedly installed on the bottom wall of the feed box 1, a guide rod 16 is fixedly installed on the bottom end of the distribution hopper 5, a movable plug 17 is fixedly installed on the bottom end of the guide rod 16, the movable plug 17 is slidably installed on the inner wall of the piston cylinder 15, a flexible hose 18 is fixedly installed through the outer surface of the piston cylinder 15 near its bottom, the flexible hose 18 is connected to the inside of the water inlet pipe 19, a first one-way valve 23 is installed on the flexible hose 18 to unidirectionally guide the water inlet pipe 19, a conduit 22 is fixedly installed through the piston cylinder 15 near the outer surface of the flexible hose 18, and a second one-way valve 24 is installed on the conduit 22 to unidirectionally guide the water inlet pipe 15.

[0023] When the feed hopper 5 shakes up and down, the guide rod 16 drives the movable plug 17 to move synchronously, so that the movable plug 17 draws the external water source into the piston cylinder 15 through the conduit 22, and then squeezes the water source into the spray pipe 20 through the hose 18 and the water inlet pipe 19. Multiple spray nozzles 21 spray water mist to wet the waste salt powder, so as to prevent the waste salt powder from softening and melting after being heated and adhering to the conveyor belt 9, which would cause the material to be unable to flow normally, and the heating to be severely uneven, forcing the production line to stop to clear the blockage.

[0024] In this embodiment, two C-shaped plates 25 are symmetrically fixedly installed on both sides of the top of the filter plate 6. A rotating shaft 26 is rotatably installed between the two C-shaped plates 25. A plurality of crushing rods 27 are uniformly fixedly installed on the outer periphery of the rotating shaft 26. A transmission assembly is installed between the rotating shaft 26 and the feed box 1. The transmission assembly includes a one-way bearing 28 installed at the end of the rotating shaft 26. A one-way rotating transmission gear 29 is installed on the rotating shaft 26 through the one-way bearing 28. A transmission rack 30 is fixedly installed on the inner wall of the feed box 1. The transmission gear 29 meshes with the transmission rack 30.

[0025] When the feed hopper 5 moves up and down, it will drive the rotating shaft 26 to move up and down through the C-shaped plate 25. When the rotating shaft 26 moves upward, the transmission gear 29 will idle under the action of the one-way bearing 28. When the rotating shaft 26 moves downward, the rotating shaft 26 will rotate through the one-way bearing 28, so that the crushing rod 27 installed on the outside of the rotating shaft 26 will break up the waste salt clumps on the filter plate 6, so as to avoid incomplete pyrolysis of the waste salt clumps in the future.

[0026] In this embodiment, multiple rotating plates 10 are evenly installed on the inner walls of opposite sides near the bottom of the hopper 5. The rotating plates 10 are intermittently raised and lowered as the hopper 5 shakes up and down, and the wetted waste salt powder in the hopper 5 is intermittently collected. The waste salt powder is accumulated to a certain size before entering the pyrolysis box 2 for pyrolysis.

[0027] In this embodiment, an electric heating plate 7 is fixedly installed on the top wall of the pyrolysis box 2, and two support rollers 8 are rotatably installed on the inner wall of the pyrolysis box 2. A conveyor belt 9 is sleeved on the outer surface of the two support rollers 8. A pulley 31 is fixedly installed on both the rotation center of one support roller 8 and the support shaft 12. A transmission belt 32 is sleeved between the outer surfaces of the two pulleys 31.

[0028] When the support shaft 12 rotates, it will drive the support roller 8 to rotate through the pulley 31 and the transmission belt 32, so that the conveyor belt 9 sleeved on the support roller 8 can transport the waste salt so that the electric heating plate 7 can perform pyrolysis on the waste salt.

[0029] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: When in use, waste salt is poured from the feed hopper 3 into the feed box 1, and the waste salt falls onto the filter plate 6. The stepper motor 14 drives the support shaft 12 to rotate, causing the eccentric wheel 13 installed on the outer periphery of the support shaft 12 to drive the distribution hopper 5 to shake up and down as a whole, so that the filter plate 6 screens the waste salt, and the waste salt powder falls into the distribution hopper 5. Large particles of waste salt fall directly from the connection port 4 onto the conveyor belt 9 in the pyrolysis box 2, and the waste salt is pyrolyzed by the electric heating plate 7. When the feed hopper 5 shakes up and down, the guide rod 16 drives the movable plug 17 to move synchronously, so that the movable plug 17 draws the external water source into the piston cylinder 15 through the conduit 22, and then squeezes the water source into the spray pipe 20 through the hose 18 and the water inlet pipe 19. Multiple spray nozzles 21 spray water mist to wet the waste salt powder, so as to prevent the waste salt powder from softening and melting after being heated and adhering to the conveyor belt 9, which would cause the material to be unable to flow normally, and the heating to be severely uneven, forcing the production line to stop to clear the blockage. When the feed hopper 5 moves up and down, it will drive the rotating shaft 26 to move up and down through the C-shaped plate 25. When the rotating shaft 26 moves upward, the transmission gear 29 will idle under the action of the one-way bearing 28. When the rotating shaft 26 moves downward, the rotating shaft 26 will rotate through the one-way bearing 28, so that the crushing rod 27 installed on the outside of the rotating shaft 26 will break up the waste salt clumps on the filter plate 6, so as to avoid incomplete pyrolysis of the waste salt clumps in the future. When the support shaft 12 rotates, it will drive the support roller 8 to rotate through the pulley 31 and the transmission belt 32, so that the conveyor belt 9 sleeved on the support roller 8 can transport the waste salt so that the electric heating plate 7 can perform pyrolysis on the waste salt.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A waste salt pyrolysis device for polyphenylene sulfide (PPS) production, comprising a feed box (1) and a pyrolysis box (2), wherein a feed hopper (3) communicating with the interior of the feed box (1) is fixedly installed at the top, characterized in that, Also includes: The material distribution hopper (5) is movably installed inside the feed box (1). A filter plate (6) is fixedly installed on the top of the material distribution hopper (5). A connection port (4) is provided through the side of the feed box (1) adjacent to the pyrolysis box (2). The discharge end of the material distribution hopper (5) extends into the pyrolysis box (2) from the connection port (4). The spraying mechanism is used to wet the waste salt powder in the distribution hopper (5). The spraying mechanism includes a water inlet pipe (19) that is fixedly installed through the bottom of the distribution hopper (5). A spray pipe (20) that communicates with the inside of the water inlet pipe (19) is fixedly installed at the top of the water inlet pipe (19). Several spray heads (21) are evenly fixedly installed through the outer surface of the spray pipe (20).

2. The waste salt pyrolysis device for polyphenylene sulfide production according to claim 1, characterized in that, The bottom wall of the feed box (1) is fixedly installed with multiple tension spring rods (11), and the telescopic ends of the multiple tension spring rods (11) are fixedly installed with the bottom of the distribution hopper (5). The inside of the feed box (1) is installed a shaking component that drives the distribution hopper (5) to shake.

3. The waste salt pyrolysis device for polyphenylene sulfide production according to claim 2, characterized in that, The shaking component includes a support shaft (12) that is rotatably mounted between the inner walls of opposite sides of the feed box (1). Multiple eccentric wheels (13) are uniformly fixed on the outer surface of the support shaft (12). The bottom of the distribution hopper (5) abuts against the outer periphery of the eccentric wheels (13).

4. The waste salt pyrolysis device for polyphenylene sulfide production according to claim 3, characterized in that, A stepper motor (14) is fixedly installed on the outer surface of the feed box (1), and the output end of the stepper motor (14) is fixedly installed at the rotation center of the support shaft (12).

5. The waste salt pyrolysis device for polyphenylene sulfide production according to claim 4, characterized in that, A piston cylinder (15) is fixedly installed on the bottom wall of the feed box (1). A guide rod (16) is fixedly installed at the bottom end of the feed hopper (5). A movable plug (17) is fixedly installed at the bottom end of the guide rod (16). The movable plug (17) is slidably installed on the inner wall of the piston cylinder (15). A hose (18) is fixedly installed through the outer surface of the piston cylinder (15) near its bottom. The hose (18) is connected to the inside of the water inlet pipe (19). A first one-way valve (23) is installed on the hose (18) to allow one-way flow into the water inlet pipe (19). A guide tube (22) is fixedly installed through the outer surface of the piston cylinder (15) near the hose (18). A second one-way valve (24) is installed on the guide tube (22) to allow one-way flow into the piston cylinder (15).

6. The waste salt pyrolysis device for polyphenylene sulfide production according to claim 1, characterized in that, Two C-shaped plates (25) are symmetrically fixedly installed on both sides of the top of the filter plate (6). A rotating shaft (26) is rotatably installed between the two C-shaped plates (25). Several crushing rods (27) are uniformly fixedly installed on the outer circumference of the rotating shaft (26). A transmission assembly is installed between the rotating shaft (26) and the feed box (1).

7. The waste salt pyrolysis device for polyphenylene sulfide production according to claim 6, characterized in that, The transmission assembly includes a one-way bearing (28) installed at the end of the rotating shaft (26). The rotating shaft (26) is equipped with a transmission gear (29) that can rotate in one direction via the one-way bearing (28). A transmission rack (30) is fixedly installed on the inner wall of the feed box (1). The transmission gear (29) meshes with the transmission rack (30).

8. The waste salt pyrolysis device for polyphenylene sulfide production according to claim 7, characterized in that, The material distribution hopper (5) has multiple rotating plates (10) evenly installed between the inner walls of opposite sides near its bottom.

9. The waste salt pyrolysis device for polyphenylene sulfide production according to claim 1, characterized in that, The top wall of the pyrolysis box (2) is fixedly equipped with an electric heating plate (7), and the inner wall of the pyrolysis box (2) is rotatably equipped with two support rollers (8). The outer surfaces of the two support rollers (8) are fitted with conveyor belts (9). One of the support rollers (8) and the rotation center of the support shaft (12) are both fixedly equipped with pulleys (31), and a transmission belt (32) is fitted between the outer surfaces of the two pulleys (31).

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