Waste crushing device for plastic bottle processing

By designing a plastic bottle crushing device containing corona separation and air-drying components, the problem that existing devices cannot distinguish PP and PE plastic particles is solved, effectively distinguishing plastic particles and removing moisture, and improving processing efficiency.

CN222755841UActive Publication Date: 2025-04-15NANTONG YINGLAI NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202421384225.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-18
Publication Date
2025-04-15
Estimated Expiration
2034-06-18

AI Technical Summary

Technical Problem

The existing waste crushing device cannot effectively distinguish plastic bottle particles made of PP and PE, resulting in inconvenience in post-processing.

Method used

A device is designed including a crushing box, a separation box and an air-drying assembly. The PP and PE plastic particles are distinguished by the corona electric field in the separation box, and the moisture on the plastic particles is dried by the air-drying assembly using a high-pressure airflow.

Benefits of technology

It realizes effective distinction between PP and PE plastic particles and moisture removal, improving the efficiency and quality of subsequent processing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of plastic bottle crushing treatment, and discloses a waste crushing device for plastic bottle processing, which comprises a crushing box, the right side of the crushing box is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a driving gear, and the bottom of the crushing box is fixedly connected with a conveying pipe. An air drying assembly is fixedly connected to the right side of the conveying pipe, a conveying pipe is fixedly connected to the top of the air drying assembly, and a shell is fixedly connected to the right side of the conveying pipe. According to the plastic particle separation device, plastic particles are conveyed to the roller through the inclined plate in the separation box, the roller is connected with the grounding electrode, the electric plate is connected with the high-voltage electrode, the plastic particles are conveyed to the roller through the inclined plate, and the roller rotates to drive the plastic particles to enter a corona electric field between the grounding electrode and the high-voltage electrode; the function of classifying PP and PE material plastic particles is achieved, and the problem that PP and PE material plastic cannot be distinguished is solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of plastic bottle crushing and processing, in particular to a waste crushing device for plastic bottle processing. Background Art

[0002] Plastic bottles are mainly made of materials such as polyethylene or polypropylene and are added with a variety of organic solvents. If plastic bottles are discarded directly after use, pollution will occur because plastic is difficult to degrade in a short period of time. Generally, plastic bottles can be recycled and reused after use, which can avoid pollution and enable resource recycling. When reused, the plastic bottles need to be crushed for secondary processing. At this time, a plastic bottle crushing device must be used.

[0003] The existing waste crushing devices cannot distinguish between PP and PE plastic bottles when crushing plastic bottles. After the plastic bottles are crushed, the particles of the two materials are mixed together, and PP and PE cannot be effectively distinguished, which is not conducive to further processing at a later stage. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a waste crushing device for plastic bottle processing, aiming to improve the problem that the existing crushing device cannot distinguish between plastic particles of PP and PE materials, and that there will be liquid residue in the plastic bottles, and that liquid will adhere to them after crushing, affecting subsequent processing.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a waste crushing device for processing plastic bottles, comprising a crushing box, a second motor is fixedly connected to the right side of the crushing box, a driving gear is fixedly connected to the output end of the second motor, a transport pipe is fixedly connected to the bottom of the crushing box, a drying component is fixedly connected to the right side of the transport pipe, a feeding pipe is fixedly connected to the top of the drying component, a shell is fixedly connected to the right side of the feeding pipe, a third motor is fixedly connected to the front side of the shell, a driving wheel is fixedly connected to the output end of the third motor, a separation box is fixedly connected to the bottom of the shell, a first motor is fixedly connected to the front end of the separation box, a roller is fixedly connected to the output end of the first motor, the roller is rotatably connected to the front and rear inner walls of the separation box, a grounding electrode is arranged on the rear side of the roller, an inclined plate is fixedly connected to the front and rear inner walls of the separation box, an electric plate is fixedly connected to the front and rear inner walls of the separation box, a high-voltage electrode is fixedly connected to the right side of the electric plate, a scraper (24) is fixedly connected to the front and rear inner walls of the separation box (12), and a baffle (29) is fixedly connected to the front and rear inner walls of the separation box (12).

[0006] Preferably, the air-drying component includes a wind barrel, which is fixedly connected to the transport pipe, the wind barrel and the outer shell, a high-pressure air pump is fixedly connected to the bottom of the outer shell, an air duct is fixedly connected to the output end of the high-pressure air pump, the air duct and the wind barrel are fixedly connected, a drainage tube is provided at the bottom of the wind barrel, four brackets are fixedly connected to the surface of the wind barrel, and the wind barrel is fixedly connected to the feed pipe.

[0007] Preferably, a second discharge port is provided at the left bottom of the separation box, and a first discharge port is provided at the right bottom of the separation box.

[0008] Preferably, a feed port is provided on the top of the crushing box, and two support rods are fixedly connected to the left side of the crushing box.

[0009] Preferably, a guide wheel is rotatably connected between the front and rear inner walls of the shell, and a conveyor belt is provided between the guide wheel and the driving wheel.

[0010] Preferably, a ground wire is fixedly connected to the bottom of the ground electrode, and the ground wire is fixedly connected to the separation box.

[0011] Preferably, a crushing wheel is rotatably connected inside the crushing box, a driven gear is fixedly connected to the front side of the crushing wheel, and the driven gear is meshed with the driving gear.

[0012] Preferably, two support rods are fixedly connected to the front and rear sides of the shell, and a cross bar is fixedly connected between the left and right support rods.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the plastic particles are transported to the drum through the inclined plate inside the separation box. The drum is connected with a grounding electrode, and the electric plate is connected with a high-voltage electrode. The inclined plate transports the plastic particles to the drum. The rotation of the drum drives the plastic particles into the corona electric field between the drum and the electric plate. The PE plastic particles with strong conductivity can quickly obtain the same charge when they touch the drum, so they will be repelled and leave the original path and fall to the second discharge port. The PP plastic particles with low conductivity take a long time to obtain the same charge. At the moment of contact, they are too late to obtain the same charge, so they will be attracted by the drum, and as the drum rotates to the scraper, they will be scraped off and fall into the first discharge port, realizing the function of classifying PP and PE plastic particles, and solving the problem that PP and PE plastics cannot be distinguished.

[0015] 2. In the utility model, gas is blown into the wind barrel through the air duct connected to the output end of the high-pressure air pump, so that the airflow in the wind barrel rotates around the inner wall of the wind barrel, and the plastic particles are transported to the wind barrel by the transport pipe. Driven by the airflow in the barrel, the plastic particles will rotate around the inner wall of the wind barrel to throw out the moisture. The lighter plastic particles are carried to the top feed pipe by the internal airflow, and the moisture is thrown to the inner wall and flows down along the inner wall and out of the drainage tube, thereby realizing the function of air-drying the plastic particles and solving the problem that the moisture on the plastic particles affects the subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of the waste crushing device for plastic bottle processing proposed by the utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of the waste crushing device for plastic bottle processing proposed by the utility model;

[0018] Figure 3 The utility model is a schematic diagram of the crushing structure of the waste crushing device for plastic bottle processing proposed by the utility model.

[0019] Legend:

[0020] 1. Crushing box; 2. Feeding port; 3. Support rod; 4. Transport pipe; 5. Wind barrel; 6. Drainage cylinder; 7. Bracket; 8. Air duct; 9. High-pressure air pump; 10. Casing; 11. Feeding pipe; 12. Separation box; 13. Cross bar; 14. First motor; 15. First discharge port; 16. Second discharge port; 17. Driven gear; 18. Driving gear; 19. Second motor; 20. Crushing wheel; 21. Driving wheel; 22. Conveyor belt; 23. Inclined plate; 24. Scraper; 25. Roller; 26. Electric plate; 27. Third motor; 28. Guide wheel; 29. ​​Baffle; 30. High-voltage electrode; 31. Grounding electrode; 32. Ground wire. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings of the specification of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Reference Figure 1-3The utility model provides an embodiment: a waste crushing device for plastic bottle processing, comprising a crushing box 1, a second motor 19 is fixedly connected to the right side of the crushing box 1, a driving gear 18 is fixedly connected to the output end of the second motor 19, a transport pipe 4 is fixedly connected to the bottom of the crushing box 1, a drying component is fixedly connected to the right side of the transport pipe 4, a feed pipe 11 is fixedly connected to the top of the drying component, a housing 10 is fixedly connected to the right side of the feed pipe 11, a third motor 27 is fixedly connected to the front side of the housing 10, a driving wheel 21 is fixedly connected to the output end of the third motor 27, and a bottom of the housing 10 is fixedly connected to the third motor 27. A separation box 12 is fixedly connected, a first motor 14 is fixedly connected to the front end of the separation box 12, a roller 25 is fixedly connected to the output end of the first motor 14, the roller 25 is rotatably connected to the front and rear inner walls of the separation box 12, a grounding electrode 31 is arranged on the rear side of the roller 25, an inclined plate 23 is fixedly connected between the front and rear inner walls of the separation box 12, an electric plate 26 is fixedly connected between the front and rear inner walls of the separation box 12, a high-voltage electrode 30 is fixedly connected to the right side of the electric plate 26, a scraper 24 is fixedly connected between the front and rear inner walls of the separation box 12, and a baffle 29 is fixedly connected between the front and rear inner walls of the separation box 12.

[0023] The transport pipe 4 at the bottom of the crushing box 1 transports the crushed plastic particles to the air-drying assembly for air-drying, and then enters the interior of the housing 10 through the conveying pipe.

[0024] Reference Figure 1 The air-drying component includes an air barrel 5, which is fixedly connected to the transport pipe 4, the air barrel 5 and the outer shell 10, a high-pressure air pump 9 is fixedly connected to the bottom of the outer shell 10, an air duct 8 is fixedly connected to the output end of the high-pressure air pump 9, the air duct 8 and the air barrel 5 are fixedly connected, the high-pressure air pump 9 inputs the air flow into the wind barrel 5 and rotates along the inner wall, a drainage tube 6 is provided at the bottom of the wind barrel 5, four brackets 7 are fixedly connected to the surface of the wind barrel 5, the brackets 7 fix the wind barrel 5, and the wind barrel 5 is fixedly connected to the feed pipe 11.

[0025] The output end of the high-pressure air pump 9 transports air into the wind barrel 5 through the air duct 8. The air flow will rotate around the inner wall of the wind barrel 5 inside the wind barrel 5. The transport pipe 4 transports the plastic particles into the wind barrel 5. The plastic particles are driven to rotate in the wind barrel 5 to be dried. The moisture is thrown onto the inner wall and flows along the inner wall to the drainage tube 6 and out. The plastic particles are thrown to the top feed pipe 11.

[0026] Reference Figure 2 A second discharge port 16 is provided at the left bottom of the separation box 12, and a first discharge port 15 is provided at the right bottom of the separation box 12 for discharging the separated plastic particles respectively.

[0027] Reference Figure 1 A feed port 2 is provided on the top of the crushing box 1 for pouring plastic bottles into the crushing box. Two support rods 3 are fixedly connected to the left side of the crushing box 1 for fixing the crushing box 1.

[0028] Reference Figure 2 A guide wheel 28 is rotatably connected between the front and rear inner walls of the housing 10 , and a conveyor belt 22 is arranged between the guide wheel 28 and the driving wheel 21 .

[0029] Reference Figure 2 A ground wire 32 is fixedly connected to the bottom of the ground electrode 31 , and the ground wire 32 is fixedly connected to the separation box 12 .

[0030] Reference Figure 1 A crushing wheel 20 is rotatably connected inside the crushing box 1, and a driven gear 17 is fixedly connected to the front side of the crushing wheel 20. The driven gear 17 and the driving gear 18 are meshed with each other for transmission between the gears to drive the crushing wheel 20 for crushing.

[0031] Reference Figure 1 Two support rods 3 are fixedly connected to the front and rear sides of the housing 10, and a cross bar 13 is fixedly connected between the left and right support rods 3 to support the housing.

[0032] Working principle: when in use, pour the plastic bottles from the feed port 2, the second motor 19 drives the driving gear 18, the driving gear drives the driven gear 17, and drives the crushing wheel 20 to rotate, thereby achieving the effect of crushing the plastic bottles, and the plastic is crushed and moves downward into the transport pipe 4, and the plastic particles enter the wind barrel 5 along the transport pipe 4. The air duct 8 fixedly connected to the output end of the high-pressure air pump 9 brings the airflow into the wind barrel 5, and the airflow rotates along the inner wall of the wind barrel 5. The plastic particles transported in will rotate along the inner wall of the wind barrel 5, thereby achieving the effect of drying the plastic particles, and the moisture thrown out will flow downward along the inner wall of the wind barrel, and finally flow out from the bottom drainage tube 6. The dried rubber particles will be rolled up by the airflow and brought to the feed pipe, and then transported to the shell 10 and fall on the conveyor belt 22, and then driven by the third motor 27 to drive the driving wheel 21, and then the driving wheel 21 drives the conveyor belt 22 it is engaged with, and the conveyor The conveyor belt 22 transfers the plastic particles from the top to the inclined plate 23 below, and the first motor 14 drives the roller 25 to rotate. The plastic particles slide from the inclined plate 23 to the roller 25. The roller 25 is connected to a grounding electrode 31, and the electric plate 26 is connected to a high-voltage electrode 30. The inclined plate 23 transports the plastic particles to the roller 25. The rotation of the roller 25 drives the plastic particles to enter the corona electric field between the roller 25 and the electric plate 26. The PE plastic particles with strong conductivity can quickly obtain the same charge when they touch the roller 25, so they will repel each other, leave the original path and fall to the second discharge port 16, while the PP plastic particles with low conductivity need a long time to obtain the same charge. At the moment of contact, they have no time to obtain the same charge, so they will be attracted by the roller 25, and as the roller 25 rotates to the scraper 24, they will be scraped off and fall into the first discharge port 15, realizing the function of classifying PP and PE plastic particles.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waste crushing device for plastic bottle processing, comprising a crushing box (1), characterized in that: The right side of the crushing box (1) is fixedly connected to a second motor (19), and the output end of the second motor (19) is fixedly connected to a driving gear (18). The bottom of the crushing box (1) is fixedly connected to a transport pipe (4), and an air-drying component is arranged on the right side of the transport pipe (4). A feed pipe (11) is arranged on the top of the air-drying component. The right side of the feed pipe (11) is fixedly connected to a housing (10). The front side of the housing (10) is fixedly connected to a third motor (27), and the output end of the third motor (27) is fixedly connected to a driving wheel (21). The bottom of the housing (10) is fixedly connected to a separation box (12), and the front end of the separation box (12) is fixedly connected to a transmission device (12). A first motor (14) is connected, and a roller (25) is fixedly connected to the output end of the first motor (14), and the roller (25) is rotatably connected to the front and rear inner walls of the separation box (12). A grounding electrode (31) is arranged on the rear side of the roller (25), and an inclined plate (23) is fixedly connected to the front and rear inner walls of the separation box (12). An electric plate (26) is fixedly connected to the front and rear inner walls of the separation box (12), and a high-voltage electrode (30) is fixedly connected to the right side of the electric plate (26). A scraper (24) is fixedly connected to the front and rear inner walls of the separation box (12), and a baffle (29) is fixedly connected to the front and rear inner walls of the separation box (12).

2. The waste crushing device for plastic bottle processing according to claim 1, characterized in that: The air-drying component comprises an air barrel (5), the air barrel (5) is fixedly connected to the transport pipe (4), a high-pressure air pump (9) is fixedly connected to the bottom of the shell (10), an air duct (8) is fixedly connected to the output end of the high-pressure air pump (9), the air duct (8) and the air barrel (5) are fixedly connected, a drainage tube (6) is provided at the bottom of the air barrel (5), four brackets (7) are fixedly connected to the surface of the air barrel (5), and the top of the air barrel (5) is fixedly connected to the feed pipe (11).

3. The waste crushing device for plastic bottle processing according to claim 1, characterized in that: The left bottom of the separation box (12) is provided with a second discharge port (16), and the right bottom of the separation box (12) is provided with a first discharge port (15).

4. The waste crushing device for plastic bottle processing according to claim 1, characterized in that: A feed opening (2) is provided on the top of the crushing box (1), and two support rods (3) are fixedly connected to the left side of the crushing box (1).

5. The waste crushing device for plastic bottle processing according to claim 1, characterized in that: A guide wheel (28) is rotatably connected between the front and rear inner walls of the housing (10), and a conveyor belt (22) is arranged between the guide wheel (28) and the driving wheel (21).

6. The waste crushing device for plastic bottle processing according to claim 1, characterized in that: A ground wire (32) is fixedly connected to the bottom of the ground electrode (31), and the ground wire (32) is fixedly connected to the separation box (12).

7. The waste crushing device for plastic bottle processing according to claim 1, characterized in that: A crushing wheel (20) is rotatably connected inside the crushing box (1), a driven gear (17) is fixedly connected to the front side of the crushing wheel (20), and the driven gear (17) and the driving gear (18) are meshed with each other.

8. The waste crushing device for plastic bottle processing according to claim 1, characterized in that: Two support rods (3) are fixedly connected to the front and rear sides of the housing (10), and a cross bar (13) is fixedly connected between the left and right support rods (3).