Crushing treatment device for recycling EVA waste

Abstract

The utility model relates to a crushing treatment device for recycling EVA (Ethylene Vinyl Acetate) waste, which comprises a crushing bin and a crushing component arranged in the crushing bin, and a screening component is arranged below a discharge port of the crushing bin. According to the utility model, the two layers of first crushing rollers and second crushing rollers are arranged in the crushing bin to carry out a double crushing process, and a plurality of third crushing rollers and fourth crushing rollers which are distributed in parallel are arranged between the two layers of first crushing rollers and second crushing rollers to carry out a crushing process, so that the crushing effect is more sufficient; a material guide plate is arranged above each crushing roller, so that the situation that EVA waste cannot be effectively crushed after splashing in the crushing process can be effectively reduced, the defects of the EVA waste in the crushing process are perfected as much as possible, dead corners in the EVA waste crushing process are reduced, the crushing effect is improved, and the crushing efficiency is improved through screening treatment in the screening assembly; therefore, the EVA waste materials can enter the next working procedure or return to the previous working procedure to be repeatedly crushed and processed, and effective classification treatment is achieved.

Description

Technical Field

[0001] This utility model relates to the field of EVA waste recycling and processing technology, and in particular to a crushing and processing device for EVA waste recycling. Background Technology

[0002] EVA waste, namely waste from ethylene-vinyl acetate copolymer, can be processed through recycling. EVA is a material with flexibility, impact resistance, chemical resistance, and UV radiation resistance, widely used in footwear, packaging, automotive, and other industries. Recycling EVA waste not only reduces environmental pollution but also saves resources, lowers production costs, and contributes to sustainable development. To facilitate the recycling of EVA waste, crushing and grinding are often required: the cleaned EVA material is crushed into small particles or granules. However, traditional crushing devices only have a single stage of crushing, and during the crushing process, EVA waste often does not move along the center of the crushing path but splashes outwards and falls, resulting in relatively large particles after crushing and poor crushing efficiency. To solve these problems and improve the monitoring and classification of crushed waste, this invention proposes a crushing and processing device for EVA waste recycling. Utility Model Content

[0003] (1) Technical problems to be solved

[0004] To address the aforementioned problems in the prior art and to overcome its shortcomings, this utility model provides a crushing and processing device for EVA waste recycling that can be reasonably manufactured and used.

[0005] (2) Technical solution

[0006] To solve the above-mentioned technical problems, this utility model provides a crushing and processing device for EVA waste recycling, including a crushing chamber and a crushing component disposed inside the crushing chamber, and a screening component is provided below the discharge port of the crushing chamber.

[0007] The crushing chamber includes a feed opening at the top, a first guide plate along the feed opening, a first crushing roller and a second crushing roller of the crushing assembly below the first guide plate, and discharge ports on both sides of the first guide plate facing the crushing center of the first and second crushing rollers. The first and second crushing rollers are each provided with first crushing teeth. There is a height difference between the first and second crushing rollers, and they mesh with each other. Below the first and second crushing rollers is a W-shaped second guide plate with a discharge port. The second guide plate has at least two second discharge ports, and a lifting tip is provided between each adjacent second discharge port for connection. Below each second discharge port are a third and a fourth crushing roller for second-stage crushing. The third and fourth crushing rollers are provided with second crushing teeth, and there is a height difference between the third and fourth crushing rollers, and they mesh with each other. Below the third and fourth crushing rollers are a first crushing roller and a meshing second crushing roller for third-stage crushing.

[0008] The screening assembly includes a fixed screening table and a rotating screening table located at the tail end of the fixed screening table and rotating along the tail end. A screening channel is provided above the fixed screening table, and a camera for taking pictures is provided in the screening channel. The camera takes pictures of the crushed EVA waste on the fixed screening table and transmits the data to the controller. The controller analyzes the crushing degree of the EVA waste and then controls the hydraulic cylinder to drive the rotating screening table to rotate at an angle, so that the crushed EVA waste enters the first conveyor line or the second conveyor line according to the specifications.

[0009] Preferably, both ends of the second guide plate are locked to the inside of the crushing chamber by the first locking bolts.

[0010] Preferably, the first crushing roller and the second crushing roller are jointly mounted on the first support beam, and a plurality of the third crushing rollers and the fourth crushing rollers are jointly mounted on the second support beam.

[0011] Preferably, a third guide plate for guiding material is provided between the third and fourth crushing rollers and the first and second crushing rollers below. The third guide plate is U-shaped with an upward opening and a third discharge port in the middle. The third discharge port is located directly opposite the crushing center of the first and second crushing rollers.

[0012] Preferably, the left and right ends of the third guide plate are locked by the second locking bolts.

[0013] Preferably, the conveying direction of the first conveyor line is away from the crushing chamber, and the conveying direction of the second conveyor line is towards the crushing chamber.

[0014] Preferably, the outside of the crushing chamber is equipped with a drive motor, which is used to drive the first crushing roller, the second crushing roller, the third crushing roller and the fourth crushing roller respectively, so as to effectively drive the rotation of the crushing roller and realize the processing of EVA waste.

[0015] (3) Beneficial effects

[0016] This invention employs a dual crushing process using two layers of first and second crushing rollers within a crushing chamber. A further crushing process is then performed using several parallel third and fourth crushing rollers positioned between the first and second layers. This results in a more thorough crushing effect. Simultaneously, a guide plate is installed above each crushing roller to effectively reduce the amount of EVA waste that is splashed during the crushing process and fails to be effectively crushed. This minimizes defects in the EVA waste during crushing, reduces dead zones, and improves the crushing efficiency. Furthermore, this solution provides a screening component. Through screening, the EVA waste is divided into categories that can proceed to the next process or be returned to the previous process for repeated crushing, achieving effective classification and processing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is an enlarged structural schematic diagram of the screening component in this utility model.

[0019] Figure 3 This is an enlarged structural schematic diagram of the second guide plate in this utility model.

[0020] The attached figures are labeled as follows:

[0021] 100 Crushing chamber, 101 Feed opening, 102 First guide plate, 103 First support beam, 104 Second guide plate, 105 Second discharge port, 106 First locking bolt, 107 Lifting tip, 108 Second support beam, 109 Third guide plate, 110 Third discharge port, 111 Second locking bolt, 112 Discharge port;

[0022] 200 Crushing assembly, 201 First crushing roller, 202 First crushing tooth, 203 Second crushing roller, 204 Third crushing roller, 205 Fourth crushing roller, 206 Second crushing tooth;

[0023] 300 Screening assembly, 301 Fixed screening table, 302 Screening channel, 303 Controller, 304 Rotating screening table, 305 Hydraulic cylinder, 306 First conveyor line, 307 Second conveyor line. Detailed Implementation

[0024] The present invention will be further described in conjunction with the accompanying drawings and embodiments.

[0025] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "vertical", "horizontal", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] like Figure 1-3 As shown, an embodiment of the EVA waste recycling crushing and processing device of the present invention includes a crushing chamber 100 and a crushing component 200 disposed inside the crushing chamber 100. A screening component 300 is provided below the discharge port 112 of the crushing chamber 100.

[0027] The crushing chamber 100 includes a feed opening 101 at the top, a first guide plate 102 along the feed opening 101, and a first crushing roller 201 and a second crushing roller 203 of the crushing assembly 200 below the first guide plate 102. The discharge ports on both sides of the first guide plate 102 are arranged towards the crushing center of the first crushing roller 201 and the second crushing roller 203. The first crushing roller 201 and the second crushing roller 203 are each provided with a first crushing tooth 202. There is a height difference between the first crushing roller 201 and the second crushing roller 203, and they are mutually... For meshing and matching, a W-shaped second guide plate 104 with a discharge port is provided below the first crushing roller 201 and the second crushing roller 203. The second guide plate 104 has at least two second discharge ports 105, and a lifting tip 107 for connection is provided between each adjacent second discharge port 105. A third crushing roller 204 and a fourth crushing roller 205 are provided below each second discharge port 105 for a second crushing stage. For easy installation, both ends of the second guide plate 104 are locked to the inside of the crushing chamber 100 by first locking bolts 106. The first crushing roller 201 and the second crushing roller 203 are jointly mounted on the first support beam 103, and several third crushing rollers 204 and fourth crushing rollers 205 are jointly mounted on the second support beam 108. The third crushing rollers 204 and fourth crushing rollers 205 are provided with second crushing teeth 206. There is a height difference between the third crushing rollers 204 and fourth crushing rollers 205, and they mesh with each other. Below the third crushing rollers 204 and fourth crushing rollers 205, a first crushing roller 201 and a second crushing roller 203 meshing with it are arranged for third crushing. The crushing process includes a third guide plate 109 for guiding material between the third crushing roller 204 and the fourth crushing roller 205 and the first crushing roller 201 and the second crushing roller 203 below. The third guide plate 109 is U-shaped with an upward opening and a third discharge port 110 in the middle. The third discharge port 110 is positioned directly opposite the crushing center of the first crushing roller 201 and the second crushing roller 203. By setting the third guide plate 109, the effect of fully crushing the EVA waste is ensured. The left and right ends of the third guide plate 109 are locked by the second locking bolts 111.

[0028] To facilitate the screening of EVA waste, determining whether it should proceed to the next process or return to the previous process for further crushing, this solution also includes a screening assembly 300 comprising a fixed screening table 301 and a rotating screening table 304 located at the tail end of the fixed screening table 301 and rotating along the tail end. A screening channel 302 is provided above the fixed screening table 301, and a camera is installed within the screening channel 302 for capturing images. The camera photographs the crushed EVA waste on the fixed screening table 301 and transmits the data to a controller 303. The controller 303 analyzes the degree of crushing of the EVA waste and then controls a hydraulic cylinder 305 to rotate the rotating screening table 304 at an angle, allowing the crushed EVA waste to enter either the first conveyor line 306 or the second conveyor line 307 according to its specifications. The first conveyor line 306 conveys the material away from the crushing chamber 100, while the second conveyor line 307 conveys the material closer to the crushing chamber 100.

[0029] In use, this invention features two sets of first and second crushing rollers in the crushing chamber. The first crushing teeth on these rollers are cross-meshing, crushing the EVA waste material from the feed opening towards the center. Since splashing may occur during crushing, a third and fourth crushing roller are placed between the two sets of first and second crushing rollers. A second guide plate is placed between the third and fourth crushing rollers, with a lifting tip in the center of the guide plate. This reduces the risk of splashed material not being effectively crushed when the crushing rollers are positioned in the center. The lifting tip pushes the material towards the second discharge port, effectively reducing dead zones during EVA waste crushing. The same principle applies to the third guide plate placed between the second and third crushing rollers and the second and fourth crushing rollers. Therefore, the EVA waste material in the crushing chamber undergoes at least three stages of crushing: the first and second crushing rollers, the third and fourth crushing rollers in the center, and the second and third crushing rollers in the second set, before being discharged from the discharge port.

[0030] After unloading, the EVA fragments are screened by a screening component. First, they are conveyed through a fixed screening table, passing through a screening channel. The screening channel is equipped with a camera, which collects image data and transmits it back to the controller. The controller uses an internal recognition and comparison program to compare and judge the size of the EVA fragments. If the size of the EVA fragments meets the requirements of the next process, the EVA fragments continue to be conveyed to the first conveyor line. If the size of the EVA fragments is too large and does not meet the requirements of the next process, the controller drives the hydraulic cylinder to tighten downwards, thereby flipping the rotating screening table downwards and guiding the EVA fragments into the second conveyor line. The second conveyor line is the return direction, and after returning, the EVA fragments are put back into the crushing chamber for crushing.

[0031] The embodiments described above are merely preferred embodiments of the present invention, and are described in a relatively specific and detailed manner. However, the present invention is not limited to these embodiments. It should be noted that for those skilled in the art, any improvements made without departing from the spirit of the present invention fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A crushing and processing device for recycling EVA waste, characterized in that: It includes a crushing chamber (100) and a crushing component (200) disposed inside the crushing chamber (100), and a screening component (300) is provided below the discharge port (112) of the crushing chamber (100). The crushing chamber (100) includes a feed opening (101) at the top, a first guide plate (102) along the feed opening (101), and a first crushing roller (201) and a second crushing roller (203) of the crushing assembly (200) below the first guide plate (102). The discharge ports on both sides of the first guide plate (102) are arranged towards the crushing center of the first crushing roller (201) and the second crushing roller (203). The first crushing roller (201) and the second crushing roller (203) are each provided with a first crushing tooth (202). There is a height difference between the first crushing roller (201) and the second crushing roller (203), and they mesh with each other. Below the first crushing roller (201) and the second crushing roller (203) is a W-shaped discharge port. The second guide plate (104) is provided with at least two second discharge ports (105). Each adjacent second discharge port (105) is provided with a lifting tip (107) for connection. Each second discharge port (105) is provided with a third crushing roller (204) and a fourth crushing roller (205) for second crushing. The third crushing roller (204) and the fourth crushing roller (205) are provided with second crushing teeth (206). There is a height difference between the third crushing roller (204) and the fourth crushing roller (205) and they mesh with each other. Below the third crushing roller (204) and the fourth crushing roller (205), a first crushing roller (201) and a second crushing roller (203) meshing with it are provided for third crushing. The screening component (300) includes a fixed screening table (301) and a rotating screening table (304) located at the tail of the fixed screening table (301) and rotating along the tail. A screening channel (302) is provided above the fixed screening table (301). A camera for taking pictures is provided in the screening channel (302). The camera takes pictures of the crushed EVA waste on the fixed screening table (301) and transmits the data to the controller (303). The controller (303) analyzes the crushing degree of the EVA waste and then controls the hydraulic cylinder (305) to drive the rotating screening table (304) to rotate at an angle, so that the crushed EVA waste enters the first conveyor line (306) or the second conveyor line (307) according to the specifications.

2. The pulverizing and processing device for EVA waste recycling according to claim 1, characterized in that: The left and right ends of the second guide plate (104) are locked to the inside of the crushing chamber (100) by the first locking bolt (106).

3. The pulverizing and processing device for EVA waste recycling according to claim 1, characterized in that: The first crushing roller (201) and the second crushing roller (203) are jointly mounted on the first support beam (103), and several third crushing rollers (204) and fourth crushing rollers (205) are jointly mounted on the second support beam (108).

4. The pulverizing and processing device for EVA waste recycling according to claim 1, characterized in that: A third guide plate (109) for guiding material is provided between the third crushing roller (204) and the fourth crushing roller (205) and the first crushing roller (201) and the second crushing roller (203) below. The third guide plate (109) is U-shaped with an upward opening and a third discharge port (110) in the middle. The third discharge port (110) is located directly opposite the crushing center of the first crushing roller (201) and the second crushing roller (203).

5. The pulverizing and processing device for EVA waste recycling according to claim 4, characterized in that: The left and right ends of the third guide plate (109) are locked by the second locking bolt (111).

6. The pulverizing and processing device for EVA waste recycling according to claim 1, characterized in that: The first conveyor line (306) is in a conveying direction away from the crushing chamber (100), and the second conveyor line (307) is in a conveying direction close to the crushing chamber (100).

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