Dust treatment structure of plastic raw material crusher

Abstract

The utility model relates to environmental protection equipment technical field discloses a dust treatment structure of plastic raw material crusher, including cyclone separator, the output fixed setting of cyclone separator has the filter mechanism, one side fixed setting of filter mechanism has the connecting pipe, the lower end fixed setting of connecting pipe has water film dust removal subassembly, one side of water film dust removal subassembly is provided with water pump, the downside of water film dust removal subassembly is provided with filter inclined plate, the inside of base is provided with recovery box, fresh water tank and filter box, is set up on the inner bottom wall of filter box and has settled tank. In the utility model, through base, filter box, cyclone separator, filter mechanism, connecting pipe, fresh water tank, water pump, water film dust removal subassembly, filter inclined plate, recovery box and settled tank, the problem that the existing technology handles plastic particle dust, and the low efficiency of plastic particle dust treatment, influences the processing quality problem.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection equipment technology, and in particular to a dust treatment structure for a plastic raw material crusher. Background Technology

[0002] Plastic raw material crushing is a key pretreatment step in the production of plastic products. Currently, mainstream thermoplastic materials such as polypropylene and polyethylene generate suspended dust with a particle size of 10-200μm under the shearing action of high-speed blades. This dust not only leads to a raw material loss rate of 3%-5%, but also causes reduced visibility in the workshop and occupational respiratory hazards.

[0003] A search revealed Chinese Patent Publication No. CN209237619U, which discloses a plastic dust processing device. The device includes a base, with a dust removal mechanism and a housing fixedly connected to the top of the base. A dust collection mechanism is fixedly connected to the top of the housing, and a cooling mechanism, which works in conjunction with the dust collection mechanism, is connected to the top of the dust removal mechanism. A first metal mesh plate and a second metal mesh plate are fixedly connected to the inner cavity of the housing. This invention solves the problem that existing plastic dust processing devices lack the ability to cool plastic dust and recycle it by using a base, dust removal mechanism, cooling mechanism, dust collection mechanism, housing, second pipe cover, drain pipe, water suction pipe, first pipe cover, first guide plate, discharge port, discharge pipe, solenoid valve, second metal mesh plate, first metal mesh plate, nozzle, water outlet pipe, dust discharge pipe, fan, support rod, clamping ring, serpentine pipe, horizontal plate, dust suction pipe, condenser, water supply pipe, water pump, water inlet pipe, and water tank.

[0004] However, in actual use, the device discharges plastic particles in batches through a single outlet, resulting in low efficiency in treating plastic particle dust. The device also discharges water mixed with dust, leading to a high moisture content in the plastic particle dust, which affects the quality of plastic particle dust treatment. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a dust treatment structure for a plastic raw material crusher, aiming to solve the problem of low efficiency in treating plastic particle dust and the resulting impact on treatment quality in existing technologies.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a dust treatment structure for a plastic raw material crusher, comprising a cyclone separator, a filter mechanism fixedly installed at the output end of the cyclone separator, a connecting pipe fixedly installed on one side of the filter mechanism, a water film dust removal component fixedly installed at the lower end of the connecting pipe, a water pump installed on one side of the water film dust removal component, a filter inclined plate installed on the lower side of the water film dust removal component, a base installed on the lower side of the cyclone separator, a recycling tank, a clean water tank and a filter box installed inside the base, one side of the filter box and one side of the clean water tank being attached together, the filter inclined plate being installed inside the filter box, and a sedimentation tank being formed on the inner bottom wall of the filter box.

[0007] The above technical solution involves the airflow containing plastic dust passing through a cyclone separator, which collects large plastic particles into a collection box. The particles then enter a filtration mechanism for further filtration and are connected to a water film dust collector via a connecting pipe. The water film filtration process of the water film dust collector allows clean air to be discharged, while the particulate matter enters the filter box with the water flow, thus achieving the filtration of plastic dust.

[0008] As a further description of the above technical solution: The filtration mechanism includes a filter housing, a dust collection box is slidably connected to the lower side of the filter housing, a filter assembly is disposed inside the filter housing, one side of the filter assembly passes through the side wall of the filter housing, the output end of the cyclone separator is fixedly disposed on one side of the filter housing, and the other side of the filter housing is fixedly disposed at one end of the connecting pipe.

[0009] The above technical solution allows for the following: when airflow containing small plastic dust particles enters the filtration mechanism, it is filtered again by the filtration component. The vibration of the filtration component itself shakes off the adsorbed particles, thereby preventing the particles from clogging the filtration component.

[0010] As a further description of the above technical solution: The filter assembly includes a filter screen disposed inside the filter assembly. Fixed balls and springs are provided on both sides of one side of the filter screen. Vibration boxes are slidably connected to both side walls of the filter screen. The end of the spring furthest from the filter screen is connected to the vibration box. An eccentric cam is rotatably connected to the vibration box. One side of the vibration box furthest from the filter screen is disposed on the inner side wall of the filter housing. A cover plate is fixedly connected to the other side of the vibration box furthest from the filter screen. The side of the cover plate closest to the filter screen is fitted against one side of the filter housing. A motor is provided on both the cover plate and the filter housing. The output end of the motor is fixedly mounted on the eccentric cam. The side wall of the eccentric cam is fitted against the outer wall of the fixed balls.

[0011] The above technical solution involves driving the eccentric cam to rotate via the output of the motor, and then tightening the filter screen with a spring, causing the filter screen to vibrate, thereby achieving the function of vibration-based anti-clogging of the filter assembly.

[0012] As a further description of the above technical solution: The water film dust removal assembly includes a water film dust removal housing, a filter inclined plate disposed on the lower side of the water film dust removal housing, a sedimentation tank disposed on the lower side of the filter inclined plate, a connecting pipe with its lower end fixedly disposed on one side of the water film dust removal housing, an air outlet pipe disposed on the upper side of the water film dust removal housing, a nozzle and a metal mesh disposed inside the water film dust removal housing, the metal mesh disposed between the nozzle and the connecting pipe, the output end of the water pump fixedly disposed on the nozzle, and the inlet end of the water pump disposed on the inner bottom wall of the clean water tank.

[0013] Through the above technical solution: the airflow containing tiny plastic particles and dust enters the water film dust removal component through the connecting pipe, and water is sprayed onto the metal mesh through the nozzle, so that the metal mesh forms a water curtain. When the airflow passes through, the water curtain carries away the plastic particles in the airflow, thereby realizing the function of the water film dust removal component in purifying the airflow.

[0014] As a further description of the above technical solution: An air inlet pipe is fixedly installed on the cyclone separator, and a louver is installed inside the end of the air inlet pipe away from the cyclone separator.

[0015] The above technical solution allows for the filtering out of larger particles in the airflow through louvers, preventing these particles from affecting subsequent filtration steps and thus improving the efficiency of those steps.

[0016] As a further description of the above technical solution: The connecting pipe is equipped with a spiral guide vane.

[0017] The above technical solution addresses the issue that after the dust-laden airflow passes through the cyclone separator and filter mechanism, the airflow velocity is greatly reduced, which may decrease the subsequent filtration efficiency. However, the spiral guide vanes improve the airflow velocity in the connecting pipe.

[0018] As a further description of the above technical solution: A maintenance plate is provided on one side of the base.

[0019] The above technical solution allows for the repair and inspection of internal components of the base via a maintenance plate, and also enables the removal of recycled plastic granules from the recycling bin, thereby improving ease of use.

[0020] As a further description of the above technical solution: A dust removal plug is provided on one side of the base, and the outer wall of the dust removal plug passes through the side wall of the base and the filter box.

[0021] With the above technical solution, when the plastic particles on the filter plate reach a certain volume, they will slide down the filter plate into the sedimentation tank. At this time, the plastic particles in the sedimentation tank can be cleaned out and recycled by opening the dust removal plug, thus realizing the convenience of cleaning and recycling plastic particles.

[0022] This utility model has the following beneficial effects: In this invention, the base provides support for the filter box, the cyclone separator, the filtration mechanism, and the connecting pipe filter the airflow containing dusty plastic particles, the clean water tank, the water pump, and the water film dust removal assembly purify the airflow, the inclined filter plate filters the water flow, and the recycling tank and sedimentation tank collect the plastic particles. This solves the problem of low efficiency and poor treatment quality in the existing technology for handling plastic particle dust.

[0023] In this invention, the filter housing provides support for the filter assembly, and the filter housing and filter assembly provide support for the vibrating box. Driven by the motor output, the eccentric cam rotates, which in turn squeezes the fixed ball, causing the filter screen to move horizontally. Through the connection between the spring and the filter screen and the vibrating box, and the sliding connection between the filter screen and the vibrating box, the self-cleaning function of the filter mechanism is realized. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of a dust treatment structure for a plastic raw material crusher proposed in this utility model. Figure 2 This is a three-dimensional structural diagram of the filter component of a dust treatment structure for a plastic raw material crusher proposed in this utility model. Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the internal structure of the connecting pipe of a dust treatment structure for a plastic raw material crusher proposed in this utility model. Figure 5 This is a cross-sectional view of the base of a dust treatment structure for a plastic raw material crusher proposed in this utility model.

[0025] Legend: 1. Louver; 2. Air inlet duct; 3. Cyclone separator; 4. Filter mechanism; 40. Filter housing; 41. Filter assembly; 410. Motor; 411. Cover plate; 412. Filter screen; 413. Vibration box; 414. Eccentric cam; 415. Fixed ball; 416. Spring; 5. Dust collection box; 6. Connecting pipe; 7. Air outlet duct; 8. Water film dust removal assembly; 9. Dust removal plug; 10. Base; 11. Water pump; 12. Inspection plate; 13. Spiral guide vane; 14. Nozzle; 15. Metal mesh; 16. Water film dust removal housing; 17. Filter inclined plate; 18. Filter box; 19. Sedimentation tank; 20. Clean water tank; 21. Recycling box. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figure 1 and Figure 5 An embodiment of this utility model provides a dust treatment structure for a plastic raw material crusher, including a cyclone separator 3. A filter mechanism 4 is fixedly installed at the output end of the cyclone separator 3. A connecting pipe 6 is fixedly installed on one side of the filter mechanism 4. A water film dust removal component 8 is fixedly installed at the lower end of the connecting pipe 6. A water pump 11 is installed on one side of the water film dust removal component 8. A filter inclined plate 17 is installed on the lower side of the water film dust removal component 8. A base 10 is installed on the lower side of the cyclone separator 3. A recycling box 21, a clean water tank 20, and a filter box 18 are installed inside the base 10. One side of the filter box 18 is attached to one side of the clean water tank 20. The filter inclined plate 17 is installed inside the filter box 18. A sedimentation tank 19 is opened on the inner bottom wall of the filter box 18. In this embodiment, Figure 1The cyclone separator 3 utilizes centrifugal force to disperse particles, causing them to fall and the air to rise. This is a current technology. The base 10 provides support for the cyclone separator 3, the recovery tank 21, the clean water tank 20, and the filter box 18. Specifically, the airflow containing dust-laden plastic particles enters the cyclone separator 3. Through the cyclone separator 3, large particles fall into the recovery tank 21, while the airflow containing small plastic particles rises and enters the filter mechanism 4. The filter mechanism 4 performs secondary filtration, removing plastic particles of a certain size. Then, the airflow containing dust-laden particles enters the water film dust removal assembly 8 through the connecting pipe 6, and is then pumped by a water pump. The drive at the output end 11 delivers water from the clean water tank 20 to the water film dust removal assembly 8. Through water film filtration by the water film dust removal assembly 8, air is discharged to the outside, while dust-laden microplastic particles enter the filter inclined plate 17 with the water flow. Under the action of gravity, the dust-laden microplastic particles settle on the filter inclined plate 17, and the water flows to the filter box 18. Through the connection between the filter box 18 and the clean water tank 20, the clean water flows back to the clean water tank 20, thereby realizing the reuse of water source. This solves the problem of low efficiency and poor treatment quality of plastic particle dust in the existing technology.

[0028] Reference Figure 1 , Figure 2 and Figure 3 The filter mechanism 4 includes a filter housing 40, a dust collection box 5 is slidably connected to the lower side of the filter housing 40, a filter assembly 41 is provided inside the filter housing 40, one side of the filter assembly 41 passes through the side wall of the filter housing 40, the output end of the cyclone separator 3 is fixedly set on one side of the filter housing 40, and the other side of the filter housing 40 is fixedly set on one end of the connecting pipe 6. Specifically, the airflow containing dusty plastic particles enters the filter housing 40 after being filtered by the cyclone separator 3. It then undergoes secondary filtration by the filter assembly 41 and enters the connecting pipe 6 through the connection between the filter housing 40 and the connecting pipe 6. During this process, the plastic particles are adsorbed by the filter assembly 41. The adsorbed plastic particles are thrown out by the vibration of the filter assembly 41 itself, avoiding clogging of the filter assembly 41. The plastic particles that fall off the filter assembly 41 due to vibration enter the dust collection box 5. When the dust collection box 5 is full, it can be removed for cleaning through the sliding connection between the dust collection box 5 and the filter housing 40, thereby improving the filtration efficiency of the filter mechanism 4.

[0029] Reference Figure 1 , Figure 2 and Figure 4The filter assembly 41 includes a filter screen 412, which is disposed inside the filter assembly 41. A fixed ball 415 and a spring 416 are provided on both sides of one side of the filter screen 412. A vibration box 413 is slidably connected to both side walls of the filter screen 412. The end of the spring 416 away from the filter screen 412 is connected to the vibration box 413. An eccentric cam 414 is rotatably connected to the vibration box 413. One side of the vibration box 413 away from the filter screen 412 is disposed on the inner side wall of the filter housing 40. A cover plate 411 is fixedly connected to the other side of the vibration box 413 away from the filter screen 412. The side of the cover plate 411 close to the filter screen 412 is in contact with the side of the filter housing 40. A motor 410 is provided on both the cover plate 411 and the filter housing 40. The output end of the motor 410 is fixedly disposed on the eccentric cam 414. The side wall of the eccentric cam 414 is in contact with the outer wall of the fixed ball 415. Specifically, the eccentric cam 414 is a conventional structure. The filter assembly 41 supports the cover plate 411, and the filter assembly 411 and cover plate 411 support the vibrating box 413. When the airflow containing dusty plastic particles enters the filter housing 40, the plastic particles are adsorbed by the filter screen 412 inside the filter housing 40. After the filter screen 412 has been used for a period of time, the eccentric cam 414 is driven by the output of the motor 410, and the eccentric cam 414 is rotated in connection with the vibrating box 413. The eccentric cam 414, through its contact with the fixed ball 415, compresses the fixed ball 415. This compression is achieved through the connection of the spring 416 and the vibrating box 413, and the spring 416 and the filter... The connection of the filter screen 412, while driving the fixed ball 415 to move horizontally, causes the spring 416 to be in a stretched state. Through the fixed connection between the fixed ball 415 and the filter screen 412, the filter screen 412 is driven to move horizontally. Through the sliding connection between the filter screen 412 and the vibration box 413, the filter screen 412 is driven to slide horizontally within the vibration box 413. When the protruding structure of the eccentric cam 414 slides past the fixed ball 415, the spring 416 is contracted to pull the filter screen 412 back to its original position. Thus, through the rotation of the eccentric cam 414 and the contraction of the spring 416, the filter screen 412 repeatedly slides horizontally within the vibration box 413, thereby realizing the automatic cleaning function of the filter assembly 41.

[0030] Reference Figure 1 and Figure 5The water film dust removal assembly 8 includes a water film dust removal housing 16, a filter inclined plate 17 disposed on the lower side of the water film dust removal housing 16, a sedimentation tank 19 disposed on the lower side of the filter inclined plate 17, a connecting pipe 6 whose lower end is fixedly disposed on one side of the water film dust removal housing 16, an air outlet pipe 7 disposed on the upper side of the water film dust removal housing 16, a nozzle 14 and a metal mesh 15 disposed inside the water film dust removal housing 16, the metal mesh 15 disposed between the nozzle 14 and the connecting pipe 6, the output end of the water pump 11 fixedly disposed on the nozzle 14, and the inlet end of the water pump 11 disposed on the inner bottom wall of the clean water tank 20. Specifically, a water pipe is fixedly installed at the output end of the water pump 11, and a diverter plate is installed at one end of the water pipe. Multiple nozzles 14 are installed on the diverter plate, with the nozzles 14 facing the metal mesh 15. The water film dust removal assembly 8 provides support for the air outlet pipe 7, the nozzles 14, and the metal mesh 15. The water pump 11 draws water from the clean water tank 20 and sprays it onto the metal mesh 15 through the nozzles 14, forming a water curtain on the metal mesh 15. When dust-laden plastic particles enter the water film dust removal assembly 8 through the connecting pipe 6, air passes through the water curtain and... The air is discharged through the air outlet 7. The plastic particles in the airflow are carried by the water flow to the filter inclined plate 17 under the action of the water curtain. Under the action of gravity, the plastic particles that pass through the filter inclined plate 17 settle on the filter inclined plate 17. The water flows into the filter box 18, and then enters the clean water tank 20 after filtration for reuse. When the plastic particles on the filter inclined plate 17 reach a certain volume, the plastic particles fall into the sedimentation tank 19 on the filter box 18, thereby realizing the function of the water film dust removal component 8 in purifying the airflow containing dust-laden plastic particles.

[0031] Reference Figure 1 An air inlet pipe 2 is fixedly installed on the cyclone separator 3, and a louver 1 is installed inside the end of the air inlet pipe 2 away from the cyclone separator 3. Specifically, the dust-laden plastic particles are brought into the cyclone separator 3 for filtration through the air inlet pipe 2, and larger external particles are filtered through the louvers 1, which helps to improve the efficiency of subsequent filtration steps.

[0032] Reference Figure 4 The connecting pipe 6 is equipped with a spiral guide vane 13; Specifically, the spiral guide vane 13 increases the flow rate of the airflow containing dust-laden plastic particles in the connecting pipe 6, thereby helping to improve the filtration efficiency of subsequent filtration steps.

[0033] Reference Figure 1 A maintenance plate 12 is provided on one side of the base 10; Specifically, when the recycling bin 21 is full of plastic particles, the plastic particles inside the recycling bin 21 can be transferred by opening the inspection plate 12. When a fault occurs inside the base 10, it can be repaired by opening the inspection plate 12, thereby helping to improve the convenience of dust handling.

[0034] Reference Figure 1 and Figure 5 A dust removal plug 9 is provided on one side of the base 10, and the outer wall of the dust removal plug 9 passes through the side wall of the base 10 and the filter box 18. Specifically, when the sedimentation tank 19 is full of plastic particles, the plastic particles can be removed from the sedimentation tank 19 by pulling out the dust removal plug 9 for recycling, thereby improving the efficiency of plastic particle recycling.

[0035] Working principle: Larger external particles are filtered through louvers 1. The airflow containing dusty plastic particles enters the cyclone separator 3 through the air inlet pipe 2. The cyclone separator 3 causes the large particles to fall into the collection box 21, while the airflow containing dusty small plastic particles is discharged upward and enters the filter mechanism 4. The filter screen 412 adsorbs the plastic particles in the airflow containing dusty small plastic particles. Driven by the output of the motor 410, the eccentric cam 414 rotates and squeezes the fixed ball 415, causing the filter screen 412 to move horizontally. Through the spring 416, the filter screen 412 vibrates, which can shake off the small plastic particles adsorbed by the filter screen 412, thereby improving the filtration efficiency of the filter mechanism 4. Then, the airflow containing dust-laden fine plastic particles enters the connecting pipe 6, and after passing through the spiral guide vane 13 to increase the airflow velocity, it enters the water film dust removal assembly 8. Driven by the output end of the water pump 11, the water in the clean water tank 20 is sprayed onto the metal mesh 15 through the nozzle 14, forming a water curtain on the metal mesh 15. The air in the airflow containing dust-laden fine plastic particles passes through the water curtain and is discharged to the outside through the air outlet pipe 7. The dust-laden fine plastic particles enter the filter inclined plate 17 with the water flow. Under the action of gravity, the dust-laden fine plastic particles settle on the filter inclined plate 17, while the water flows into the filter box 18. Through the connection between the filter box 18 and the clean water tank 20, the clean water flows back to the clean water tank 20, thereby realizing the reuse of water source. This solves the problem of low efficiency in treating plastic particle dust and the impact on treatment quality in the existing technology.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dust treatment structure for a plastic raw material crusher, comprising a cyclone separator (3), characterized in that: A filter mechanism (4) is fixedly installed at the output end of the cyclone separator (3). A connecting pipe (6) is fixedly installed on one side of the filter mechanism (4). A water film dust removal assembly (8) is fixedly installed at the lower end of the connecting pipe (6). A water pump (11) is installed on one side of the water film dust removal assembly (8). A filter inclined plate (17) is installed on the lower side of the water film dust removal assembly (8). A base (10) is installed on the lower side of the cyclone separator (3). A recycling box (21), a clean water tank (20), and a filter box (18) are installed inside the base (10). One side of the filter box (18) is attached to one side of the clean water tank (20). The filter inclined plate (17) is installed inside the filter box (18). A sedimentation tank (19) is opened on the inner bottom wall of the filter box (18).

2. The dust treatment structure of a plastic raw material crusher according to claim 1, characterized in that: The filtration mechanism (4) includes a filter housing (40), a dust collection box (5) is slidably connected to the lower side of the filter housing (40), a filter assembly (41) is provided inside the filter housing (40), one side of the filter assembly (41) passes through the side wall of the filter housing (40), the output end of the cyclone separator (3) is fixedly set on one side of the filter housing (40), and the other side of the filter housing (40) is fixedly set on one end of the connecting pipe (6).

3. The dust treatment structure of a plastic raw material crusher according to claim 2, characterized in that: The filter assembly (41) includes a filter screen (412), which is disposed inside the filter assembly (41). Fixed balls (415) and springs (416) are provided on both sides of one side of the filter screen (412). Vibration boxes (413) are slidably connected to both side walls of the filter screen (412). The end of the spring (416) away from the filter screen (412) is connected to the vibration box (413). An eccentric cam (414) is rotatably connected to the vibration box (413). One of the vibration boxes (413) is away from the filter screen (412). One side of the vibrating box (412) is set on the inner side wall of the filter housing (40), and the other side of the vibrating box (413) away from the filter screen (412) is fixedly connected to the cover plate (411). The side of the cover plate (411) close to the filter screen (412) and the side of the filter housing (40) are attached. Both the cover plate (411) and the filter housing (40) are equipped with motors (410). The output end of the motor (410) is fixedly set on the eccentric cam (414). The side wall of the eccentric cam (414) is attached to the outer wall of the fixed ball (415).

4. The dust treatment structure of a plastic raw material crusher according to claim 1, characterized in that: The water film dust removal assembly (8) includes a water film dust removal housing (16), a filter inclined plate (17) is disposed on the lower side of the water film dust removal housing (16), a sedimentation tank (19) is disposed on the lower side of the filter inclined plate (17), the lower end of the connecting pipe (6) is fixedly disposed on one side of the water film dust removal housing (16), an air outlet pipe (7) is disposed on the upper side of the water film dust removal housing (16), a nozzle (14) and a metal mesh (15) are disposed inside the water film dust removal housing (16), the metal mesh (15) is disposed between the nozzle (14) and the connecting pipe (6), the output end of the water pump (11) is fixedly disposed on the nozzle (14), and the inlet end of the water pump (11) is disposed on the inner bottom wall of the clean water tank (20).

5. The dust treatment structure of a plastic raw material crusher according to claim 1, characterized in that: An air inlet pipe (2) is fixedly installed on the cyclone separator (3), and a louver (1) is installed inside the end of the air inlet pipe (2) away from the cyclone separator (3).

6. The dust treatment structure of a plastic raw material crusher according to claim 1, characterized in that: The connecting pipe (6) is provided with a spiral guide vane (13).

7. The dust treatment structure of a plastic raw material crusher according to claim 1, characterized in that: A maintenance plate (12) is provided on one side of the base (10).

8. The dust treatment structure of a plastic raw material crusher according to claim 1, characterized in that: A dust removal plug (9) is provided on one side of the base (10), and the outer wall of the dust removal plug (9) passes through the side wall of the base (10) and the filter box (18).

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