Waste plastic crushing device

By introducing a design that combines water spraying from nozzles and cleaning with a stirring rod in the plastic crushing device, the problem of dust pollution is solved, achieving efficient dust control and cleaning, and protecting the environment and the health of operators.

CN223864112UActive Publication Date: 2026-02-03SKY WIN TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423205216.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2026-02-03
Estimated Expiration
2034-12-25

AI Technical Summary

Technical Problem

Existing plastic crushing equipment generates a large amount of dust during operation, leading to environmental pollution and health hazards.

Method used

Design a device that includes a crushing chamber and a washing chamber. A water pump sprays water from the washing chamber onto the plastic, and dust is reduced by the nozzle. At the same time, a motor-driven stirring rod washes the crushed plastic. Combined with a filter screen and an electric push rod to control the discharge, dust control and cleaning are achieved.

Benefits of technology

It effectively prevents dust from flying, improves cleaning efficiency and cleanliness, and protects the environment and the health of operators.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of plastic recycling and crushing, in particular to a waste plastic crushing device which comprises a crushing box internally provided with two crushing rollers, the top end of the crushing box is communicated with a feeding hopper, two spray heads in mirror symmetry are fixedly arranged at the upper end of the inner wall of the crushing box, and the spray heads are communicated with a water outlet pipe penetrating through the side wall of the crushing box. A cleaning box is arranged below the crushing box, a connecting pipe is communicated between the crushing box and the cleaning box, the water outlet pipe is communicated with the water outlet end of a water pump, and the water inlet end of the water pump is communicated with a water inlet pipe penetrating through the side wall of the cleaning box; firstly, water in the cleaning box is pumped into the spray head through the water pump, the spray head sprays the water on plastic, dust falling treatment can be carried out while the plastic is washed, secondly, the first driving motor drives the rotating shaft and the stirring rod to rotate, and the stirring rod stirs the water in the cleaning box and the plastic to rotate so as to clean the plastic.
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Description

Technical Field

[0001] This utility model relates to the field of plastic recycling and crushing technology, specifically a waste plastic crushing device. Background Technology

[0002] Waste plastics refer to all plastics that have been used in civilian and industrial applications and have eventually been phased out or replaced. Waste plastics are not the same as waste, old and useless plastic products. Many plastic products, especially a large number of single-use plastic products, do not have significant changes in their material properties after use. Therefore, they can be recycled and reprocessed into plastic products for reuse. Waste plastics need to be crushed after recycling.

[0003] Existing plastic crushing equipment generates a large amount of dust during operation, and this dust can easily leak from the crushing device into the outside environment. This leaked dust can cause significant harm to the surrounding environment and nearby workers. Utility Model Content

[0004] The purpose of this invention is to provide a waste plastic crushing device that solves the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a waste plastic crushing device, comprising a crushing box with two crushing rollers inside, a feeding hopper connected to the top of the crushing box, two mirror-symmetrical nozzles fixedly installed on the upper inner wall of the crushing box, the nozzles being connected to a water outlet pipe penetrating the side wall of the crushing box, a washing box being installed below the crushing box, a connecting pipe connecting the crushing box and the washing box, the water outlet pipe being connected to the water outlet of a water pump, and the water inlet of the water pump being connected to a water inlet pipe penetrating the side wall of the washing box.

[0007] Furthermore, a motor is fixedly installed on the bottom surface of the cleaning tank. The drive shaft of the motor passes through the bottom plate of the cleaning tank and is coaxially fixed with a rotating shaft perpendicular to the horizontal plane. Multiple evenly distributed stirring rods are fixedly installed on both sides of the outer wall of the rotating shaft.

[0008] Furthermore, an inclined filter screen is fixedly installed on the inner wall of the cleaning tank, the filter screen has multiple filter holes, and the filter screen is penetrated by a rotating shaft.

[0009] Furthermore, the side wall of the cleaning tank is provided with a discharge port, the outer wall of the cleaning tank is fixedly provided with a guide plate, and the inner wall of the cleaning tank is fixedly provided with two electric push rods. The output end of the electric push rods is fixedly connected to a gate perpendicular to the horizontal plane. The gate is used to open or close the discharge port.

[0010] Furthermore, the bottom of the cleaning tank is fixedly provided with a support leg perpendicular to the horizontal plane.

[0011] Furthermore, multiple support columns perpendicular to the horizontal plane are fixedly installed between the crushing box and the washing box.

[0012] Furthermore, two connecting shafts are provided outside the crushing box. The connecting shafts pass through the side wall of the crushing box and are fixedly connected to one end of the crushing roller. The other end of the crushing roller is rotatably connected to the inner wall of the crushing box. Two meshing gears are provided outside the crushing box. The gears are respectively passed through and fixedly connected to the connecting shafts. One end of the connecting shaft away from the crushing roller is coaxially fixed to the drive shaft of the second motor. A fixing plate is fixedly provided on the outer wall of the crushing box, and the second motor is fixedly provided on the top surface of the fixing plate.

[0013] Furthermore, the bottom plate of the cleaning tank is penetrated by a drain pipe equipped with an electromagnetic valve and is fixedly connected to the drain pipe.

[0014] This utility model has the following beneficial effects:

[0015] This invention uses a water pump to draw water from the cleaning tank into the nozzle, which then sprays the water onto the plastic. This process washes the plastic while also reducing dust and preventing dust from flying away.

[0016] In this invention, after the plastic is crushed, it enters a cleaning tank. A drive motor drives a rotating shaft and a stirring rod to rotate. The stirring rod agitates the water and plastic in the cleaning tank to clean the plastic.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the crushing box of this utility model;

[0021] Figure 3 This is a cross-sectional view of the cleaning box of this utility model;

[0022] Figure 4This is a schematic diagram of the water pump structure of this utility model;

[0023] The attached diagram lists the components represented by each number as follows:

[0024] In the diagram: 1. Crushing box; 101. Feed hopper; 2. Washing box; 201. Connecting pipe; 202. Discharge port; 203. Drain pipe; 3. Support leg; 4. Motor 1; 5. Rotating shaft; 6. Stirring rod; 7. Gate; 8. Electric push rod; 9. Guide plate; 10. Filter screen; 11. Water pump; 1101. Water inlet pipe; 1102. Water outlet pipe; 1103. Nozzle; 12. Support column; 13. Crushing roller; 14. Connecting shaft; 15. Gear; 16. Motor 2; 17. Fixing plate. Detailed Implementation

[0025] 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.

[0026] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Please see Figure 1-4As shown, this utility model is a waste plastic crushing device, including a crushing box 1 with two crushing rollers 13 inside. A feed hopper 101 is connected to the top of the crushing box 1. Two mirror-symmetrical nozzles 1103 are fixedly installed on the upper inner wall of the crushing box 1. The nozzles 1103 are connected to a water outlet pipe 1102 that penetrates the side wall of the crushing box 1. A cleaning box 2 is located below the crushing box 1. A connecting pipe 201 connects the crushing box 1 and the cleaning box 2. The water outlet pipe 1102 is connected to the outlet of a water pump 11, and the inlet of the water pump 11 is connected to the inlet pipe 1101 that penetrates the side wall of the cleaning box 2. The bottom of the cleaning tank 2 is fixedly provided with a support leg 3 perpendicular to the horizontal plane. Multiple support columns 12 perpendicular to the horizontal plane are fixedly provided between the crushing tank 1 and the cleaning tank 2. In this embodiment, the cleaning tank 2 is filled with clean water. The water pump 11 is started, and the water pump 11 draws the water in the cleaning tank 2 into the nozzle 1103. The plastic is put into the crushing tank 1 through the feed hopper 101. The nozzle 1103 sprays water on the plastic. The crushing roller 13 in the crushing tank 1 crushes the plastic. While rinsing the plastic, dust can also be reduced to prevent dust from flying. The crushed plastic falls into the cleaning tank 2 for cleaning.

[0028] The bottom surface of the cleaning tank 2 is fixedly equipped with a motor 4. The drive shaft of the motor 4 passes through the bottom plate of the cleaning tank 2 and is coaxially fixed with a rotating shaft 5 perpendicular to the horizontal plane. Multiple evenly distributed stirring rods 6 are fixedly installed on both sides of the outer wall of the rotating shaft 5. When crushing, the motor 4 is started, and the motor 4 drives the rotating shaft 5 and the stirring rods 6 to rotate. The stirring rods 6 agitate the water and plastic in the cleaning tank 2 to clean the plastic, thereby improving the cleaning rate and cleanliness of the plastic.

[0029] The inner wall of the cleaning tank 2 is fixedly equipped with an inclined filter screen 10, which has multiple filter holes and is penetrated by a rotating shaft 5. The side wall of the cleaning tank 2 has a discharge port 202. The outer wall of the cleaning tank 2 is fixedly equipped with a guide plate 9. The inner wall of the cleaning tank 2 is fixedly equipped with two electric push rods 8. The output end of the electric push rods 8 is fixedly connected to a gate 7 perpendicular to the horizontal plane. The gate 7 is used to open or close the discharge port 202. The bottom plate of the cleaning tank 2 is... A drain pipe 203 equipped with a solenoid valve is passed through and fixedly connected to the drain pipe 203. In this embodiment, when the crushed plastic is taken out, the solenoid valve of the drain pipe 203 is opened to discharge the water in the cleaning tank 2. Then, the electric push rod 8 is driven to move the gate 7 upward. The crushed plastic moves along the inclined filter screen 10 to the discharge port 202 and then falls along the guide plate 9. The filter screen 10 can block the plastic. The water inlet pipe 1101 is set below the filter screen 10 to prevent the plastic from entering the water inlet pipe 1101 and causing the water inlet pipe 1101 to become blocked.

[0030] The crushing chamber 1 is provided with two connecting shafts 14. The connecting shafts 14 pass through the side wall of the crushing chamber 1 and are fixedly connected to one end of the crushing roller 13. The other end of the crushing roller 13 is rotatably connected to the inner wall of the crushing chamber 1. The crushing chamber 1 is provided with two meshing gears 15. The gears 15 are respectively passed through and fixedly connected to the connecting shafts 14. One end of the connecting shaft 14 away from the crushing roller 13 is coaxially fixed to the drive shaft of the second motor 16. The outer wall of the crushing chamber 1 is fixedly provided with a fixing plate 17. The second motor 16 is fixedly provided on the top surface of the fixing plate 17. In this embodiment, the second motor 16 drives the two gears 15 to rotate, and then drives the two crushing rollers 13 to rotate to crush the plastic entering the crushing chamber 1.

[0031] Understandably, firstly, the present invention uses a water pump 11 to draw water from the cleaning tank 2 into the nozzle 1103, and the nozzle 1103 sprays water onto the plastic, which can wash the plastic and also reduce dust at the same time. Secondly, the drive motor 4 drives the rotating shaft 5 and the stirring rod 6 to rotate, and the stirring rod 6 stirs the water and plastic in the cleaning tank 2 to clean the plastic.

[0032] A specific application of this embodiment is as follows: Motor 4, Motor 16, and water pump 11 are started. Plastic is then fed into the crushing chamber 1 through the feed hopper 101. Water pump 11 draws water from the cleaning tank 2 into the nozzle 1103. The plastic is then fed into the crushing chamber 1 through the feed hopper 101. The nozzle 1103 sprays water onto the plastic, which then contacts the crushing rollers 13. Motor 16 drives the two gears 15 to rotate, which in turn drives the two crushing rollers 13 to crush the plastic. The water sprayed from the nozzle 1103 washes the plastic while simultaneously reducing dust, preventing... Dust flies as the crushed plastic enters the cleaning tank 2 through the connecting pipe 201. The motor 4 drives the rotating shaft 5 and the stirring rod 6 to rotate. The stirring rod 6 agitates the water and plastic in the cleaning tank 2 to clean the plastic, improving the cleaning speed and cleanliness. When removing the crushed plastic, the solenoid valve of the drain pipe 203 is opened first to drain the water in the cleaning tank 2. Then, the electric push rod 8 is driven to move the gate 7 upward. The crushed plastic moves along the inclined filter screen 10 to the discharge port 202 and falls along the guide plate 9. The staff places a container under the guide plate 9 to collect the crushed plastic.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A waste plastic crushing device, comprising a crushing box (1) with two crushing rollers (13) internally arranged, wherein a feed hopper (101) is connected to the top of the crushing box (1), characterized in that: Two mirror-symmetrical nozzles (1103) are fixedly installed on the upper end of the inner wall of the crushing box (1). The nozzles (1103) are connected to the water outlet pipe (1102) that penetrates the side wall of the crushing box (1). A cleaning box (2) is installed below the crushing box (1). A connecting pipe (201) connects the crushing box (1) and the cleaning box (2). The water outlet pipe (1102) is connected to the water outlet end of the water pump (11). The water inlet end of the water pump (11) is connected to the water inlet pipe (1101) that penetrates the side wall of the cleaning box (2).

2. The waste plastic crushing device according to claim 1, characterized in that: The bottom surface of the cleaning tank (2) is fixedly equipped with a motor (4). The drive shaft of the motor (4) passes through the bottom plate of the cleaning tank (2) and is coaxially fixed with a rotating shaft (5) perpendicular to the horizontal plane. Multiple evenly distributed stirring rods (6) are fixedly installed on both sides of the outer wall of the rotating shaft (5).

3. The waste plastic crushing device according to claim 2, characterized in that: An inclined filter screen (10) is fixedly installed on the inner wall of the cleaning tank (2). The filter screen (10) has multiple filter holes and is penetrated by a rotating shaft (5).

4. The waste plastic crushing device according to claim 3, characterized in that: The side wall of the cleaning tank (2) is provided with a discharge port (202). The outer wall of the cleaning tank (2) is fixedly provided with a guide plate (9). The inner wall of the cleaning tank (2) is fixedly provided with two electric push rods (8). The output end of the electric push rod (8) is fixedly connected to a gate (7) perpendicular to the horizontal plane. The gate (7) is used to open or close the discharge port (202).

5. The waste plastic crushing device according to claim 1, characterized in that: The bottom of the cleaning tank (2) is fixedly provided with a support leg (3) perpendicular to the horizontal plane.

6. The waste plastic crushing device according to claim 1, characterized in that: Multiple support columns (12) perpendicular to the horizontal plane are fixedly installed between the crushing box (1) and the washing box (2).

7. The waste plastic crushing device according to claim 1, characterized in that: Two connecting shafts (14) are provided outside the crushing box (1). The connecting shafts (14) pass through the side wall of the crushing box (1) and are fixedly connected to one end of the crushing roller (13). The other end of the crushing roller (13) is rotatably connected to the inner wall of the crushing box (1). Two meshing gears (15) are provided outside the crushing box (1). The gears (15) are respectively passed through the connecting shafts (14) and fixedly connected to the connecting shafts (14). One end of the connecting shaft (14) away from the crushing roller (13) is coaxially fixed to the drive shaft of the second motor (16). A fixing plate (17) is fixedly provided on the outer wall of the crushing box (1). The second motor (16) is fixedly provided on the top surface of the fixing plate (17).

8. The waste plastic crushing device according to claim 1, characterized in that: The bottom plate of the cleaning tank (2) is penetrated by a drain pipe (203) equipped with an electromagnetic valve and is fixedly connected to the drain pipe (203).