A waste recycling device in a plastic bottle production process

Abstract

The utility model relates to the field of waste recovery processing, disclose a kind of waste recovery processing device in the production process of plastic bottle, including shell and tank, the inside of shell is provided with crushing mechanism, the top of shell is fixedly connected with feeding hopper, shell is connected with tank by conveying mechanism, the inside of tank is provided with separating mechanism, the separating mechanism includes cylinder and riser, the inner wall top of tank is fixedly connected in cylinder, the outer wall of cylinder is fixedly connected with separating plate, the separating plate is set in spiral shape and rises.This utility model, by the round hole on the surface of separating plate, the plastic block that is not completely broken is screened out, fine particles fall into tank bottom through round hole, while the large particle plastic particles that are not completely broken are left on the lowest part above separating plate, re-crushing by the second screw conveyor and conveying back to the crushing mechanism of shell, form cyclic processing, reduce manual intervention, improve automation level.

Description

Technical Field

[0001] This utility model relates to the field of waste recycling and treatment, and in particular to a waste recycling and treatment device in the production process of plastic bottles. Background Technology

[0002] Plastic bottles are widely used in our lives. They are mainly made of materials such as polyethylene or polypropylene and various organic solvents. Most existing plastic bottle production uses blow molding production lines. This method uses high-density polyethylene granules as raw materials, which inevitably leads to waste due to the need to cut off excess material at the bottle mouth and bottom. It is necessary to use waste recycling and processing devices to recycle and reuse the waste generated during the plastic bottle production process.

[0003] Existing plastic bottle waste recycling devices collect waste and feed it into a crushing device. The crushing device pulverizes the waste generated from the plastic bottle production line into granules, and then mixes the granular waste with high-density polyethylene granules in a mixing chamber. However, during the waste processing, incomplete crushing often occurs, especially with some waste that does not meet size requirements mixed in, which affects the quality of subsequent product processing. Workers need to manually remove the waste that does not meet size requirements using tools and put it back into the crushing device, increasing the workload of workers and reducing work efficiency. Therefore, a waste recycling and processing device for the plastic bottle production process is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a waste recycling and processing device in the plastic bottle production process, which aims to improve the problem in the prior art that "incomplete waste crushing requires workers to manually handle waste that does not meet the size requirements using tools, which increases the workload of workers."

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a waste recycling and processing device in the production process of plastic bottles, comprising an outer shell and a tank. The outer shell is equipped with a crushing mechanism inside, and a feeding hopper is fixedly connected to the top of the outer shell. The outer shell is connected to the tank through a conveying mechanism. The tank is equipped with a separation mechanism inside, which includes a cylinder and a vertical plate. The cylinder is fixedly connected to the top of the inner wall of the tank, and a separation plate is fixedly connected to the outer wall of the cylinder. The separation plate is spirally upward, and a circular hole is provided on the surface of the separation plate. The highest end of the separation plate is fixedly connected to the top of the vertical plate, and the lowest end of the separation plate is fixedly connected to the bottom of the vertical plate. A conical inclined surface is provided at the bottom of the inner wall of the tank.

[0006] As a further description of the above technical solution:

[0007] The conveying mechanism includes a first screw conveyor, the top left side of which is fixedly connected to the bottom of the outer casing, and the bottom right side of which is fixedly connected to the top of the tank.

[0008] As a further description of the above technical solution:

[0009] The first screw conveyor is set in an inclined state with the left side lower than the right side.

[0010] As a further description of the above technical solution:

[0011] The conveying mechanism further includes a second screw conveyor, the bottom left side of which is fixedly connected to the top of the outer casing, and the right side of which is fixedly connected to the left side of the tank.

[0012] As a further description of the above technical solution:

[0013] The second screw conveyor is set in an inclined state with the left side higher than the right side.

[0014] As a further description of the above technical solution:

[0015] The conveying mechanism also includes a third spiral conveyor, the top left side of which is fixedly connected to the bottom of the tank.

[0016] As a further description of the above technical solution:

[0017] The crushing mechanism includes a first rotating shaft, a second rotating shaft, and a drive motor. The first rotating shaft and the second rotating shaft are rotatably connected to the inner wall of the outer casing. Crushing rollers are fixedly connected to the outer walls of the first rotating shaft and the second rotating shaft. The drive motor is fixedly connected to the front of the outer casing, and the rear side of the output shaft of the drive motor is fixedly connected to the front side of the first rotating shaft.

[0018] As a further description of the above technical solution:

[0019] The crushing mechanism also includes a first gear and a second gear. The first gear is fixedly connected to the outer wall of the first rotating shaft, and the second gear is fixedly connected to the outer wall of the second rotating shaft. The first gear and the second gear mesh with each other.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, incompletely crushed plastic blocks are screened out through the round holes on the surface of the separation plate. Fine particles fall into the bottom of the tank through the round holes, while large, incompletely crushed plastic particles remain at the lowest point above the separation plate and are transported back to the crushing mechanism of the outer shell by the second screw conveyor for re-crushing, forming a circular process. This achieves closed-loop treatment of waste materials, reduces manual intervention, and improves the level of automation.

[0022] 2. In this utility model, the plastic particles are graded and separated by the cooperation of the crushing mechanism and the separation mechanism, thereby improving the purity of the recycled material and reducing the mixing of impurities. At the same time, the separated fine plastic particles are transported to the inlet of the next process equipment by the third screw conveyor, thus completing the waste recycling treatment of plastic particles and reducing resource waste and environmental pollution. Attached Figure Description

[0023] Figure 1 This is a front view of the overall three-dimensional structure of this utility model;

[0024] Figure 2 This is a rear view schematic diagram of the overall three-dimensional structure of this utility model;

[0025] Figure 3 This is a three-dimensional cross-sectional view of the outer shell and the crushing mechanism in this utility model;

[0026] Figure 4 This is a front sectional view of the three-dimensional structure of the tank and the separation mechanism in this utility model;

[0027] Figure 5 This is a rear cross-sectional view of the three-dimensional structure of the tank and the separation mechanism in this utility model;

[0028] Figure 6 This is a three-dimensional structural diagram of the separation mechanism in this utility model.

[0029] Legend:

[0030] 1. Outer shell; 2. Tank body; 3. Feed hopper; 101. First screw conveyor; 102. Second screw conveyor; 103. Third screw conveyor; 10. Conveying mechanism; 11. Crushing mechanism; 111. Rotating shaft one; 112. Rotating shaft two; 113. Crushing roller; 114. Drive motor; 115. Gear one; 116. Gear two; 12. Separating mechanism; 121. Cylindrical; 122. Separating plate; 123. Circular hole; 124. Vertical plate; 125. Conical inclined plane. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1 and Figure 2One embodiment of this utility model is a waste recycling and processing device in the production process of plastic bottles, which includes a shell 1 and a tank 2. The shell 1 is provided with a crushing mechanism 11 inside, and a feeding hopper 3 is fixedly connected to the top of the shell 1. The shell 1 is connected to the tank 2 through a conveying mechanism 10, and a separation mechanism 12 is provided inside the tank 2.

[0033] Reference Figures 4-6 The separation mechanism 12 includes a cylinder 121 and a vertical plate 124. The cylinder 121 is fixedly connected to the top of the inner wall of the tank 2. A separation plate 122 is fixedly connected to the outer wall of the cylinder 121. The separation plate 122 is arranged in a spiral shape. Under the action of gravity, the plastic particles on the top surface of the spiral separation plate 122 roll down along the inclined surface of the separation plate 122 and are screened out through the round hole 123 to improve the purity of the recycled material and reduce the mixing of impurities.

[0034] Reference Figures 4-6 The surface of the separating plate 122 is provided with a circular hole 123. The highest end of the separating plate 122 is fixedly connected to the top of the vertical plate 124, and the lowest end of the separating plate 122 is fixedly connected to the bottom of the vertical plate 124. By using the spiral-shaped separating plate 122, the contact time between the plastic particles and the separating plate 122 is increased during the descent of the plastic particles. Compared with the flat plate, it has a larger contact area, thereby improving the purity and effect of plastic particle separation. The bottom of the inner wall of the tank 2 is provided with a conical inclined surface 125. The conical inclined surface 125 is used to guide the separated fine plastic particles to concentrate at the bottom of the tank 2, which is convenient for subsequent conveying by the third spiral conveyor 103.

[0035] Reference Figure 1 and Figure 2 The conveying mechanism 10 includes a first screw conveyor 101. The top left side of the first screw conveyor 101 is fixedly connected to the bottom of the outer shell 1, and the bottom right side of the first screw conveyor 101 is fixedly connected to the top of the tank 2. When the first screw conveyor 101 is working, it conveys the plastic particles crushed by the crushing mechanism 11 inside the outer shell 1 from left to right to the top of the separation plate 122 inside the tank 2. The first screw conveyor 101 is set in an inclined state with the left side lower and the right side higher.

[0036] Reference Figure 1 and Figure 2The conveying mechanism 10 also includes a second screw conveyor 102. The bottom left side of the second screw conveyor 102 is fixedly connected to the top of the outer shell 1, and the right side of the second screw conveyor 102 is fixedly connected to the left side of the tank 2. The left side of the second screw conveyor 102 is enclosed, and the right side of the second screw conveyor 102 is open. When the second screw conveyor 102 is working, it conveys the plastic particles inside the tank 2 from right to left to the crushing mechanism 11 inside the outer shell 1 for re-crushing. The second screw conveyor 102 is set in an inclined state with the left side higher than the right side.

[0037] Reference Figure 1 , Figure 2 and Figure 5 The conveying mechanism 10 also includes a third screw conveyor 103. The top left side of the third screw conveyor 103 is fixedly connected to the bottom of the tank 2, and the right side of the third screw conveyor 103 is connected to the equipment of the next process. When the third screw conveyor 103 is working, it conveys plastic granules to the inlet of the equipment of the next process. The first screw conveyor 101, the second screw conveyor 102 and the third screw conveyor 103 are all composed of a motor, a rotating shaft and screw blades. The motor works to make the screw blades on the outer wall of the rotating shaft rotate, thereby conveying the solid granules or powder in the conveyor. It is used to convey plastic granules between the outer shell 1 and the tank 2 through the conveying mechanism 10, which is the prior art.

[0038] Reference Figures 1-3 The crushing mechanism 11 includes a first rotating shaft 111, a second rotating shaft 112, and a drive motor 114. The first rotating shaft 111 and the second rotating shaft 112 are rotatably connected to the inner wall of the outer casing 1. Crushing rollers 113 are fixedly connected to the outer walls of the first rotating shaft 111 and the second rotating shaft 112. The number of crushing rollers 113 is set to two sets. The input plastic waste is crushed into small particles by the two sets of double crushing rollers 113 rotating and squeezing in opposite directions, providing a basis for subsequent separation. The first rotating shaft 111 and the second rotating shaft 112 are both set in a horizontal state. The drive motor 114 is fixedly connected to the front of the outer casing 1. The rear side of the output shaft of the drive motor 114 is fixedly connected to the front side of the first rotating shaft 111.

[0039] Reference Figures 1-3 The crushing mechanism 11 also includes a first gear 115 and a second gear 116. The first gear 115 is fixedly connected to the outer wall of the first rotating shaft 111, and the second gear 116 is fixedly connected to the outer wall of the second rotating shaft 112. The first gear 115 and the second gear 116 mesh with each other. Through the cooperation of the first gear 115 and the second gear 116, when the drive motor 114 works to provide power, the two sets of crushing rollers 113 rotate in opposite directions, which facilitates the crushing of plastic particles falling above the crushing rollers 113.

[0040] Working principle: During use, plastic waste enters the outer shell 1 through the feeding hopper 3. After the drive motor 114 is started, the gear 115 and gear 216 work together to make the rotating shaft 111 and rotating shaft 212 rotate in opposite directions, thereby causing the two sets of crushing rollers 113 to rotate in opposite directions, thus shearing and squeezing the plastic particles, crushing them into granules, improving the crushing efficiency of the waste, reducing the particle size, and facilitating subsequent separation and processing. The crushed plastic particles are conveyed by the first screw conveyor 101 to the highest point above the separation plate 122 at the top of the tank 2.

[0041] Inside the tank 2, plastic granules roll downwards along the surface of the spiral separation plate 122 under the action of gravity. As the plastic granules move, they come into contact with the round holes 123 on the surface of the separation plate 122. Incompletely crushed plastic pieces are screened out through the round holes 123. Fine particles fall to the bottom of the tank 2 through the round holes 123 and then slide along the conical inclined surface 125 into the third spiral conveyor 103. The third spiral conveyor 103 transports the completely crushed plastic granules to the next process. Large, incompletely crushed plastic granules remain at the lowest point above the separation plate 122 and are transported back to the crushing mechanism 11 of the outer shell 1 by the second spiral conveyor 102 for re-crushing, forming a cycle process. This achieves closed-loop treatment of waste materials, reduces manual intervention, and improves the level of automation.

[0042] The separated fine particles are conveyed to the inlet of the next process equipment via the third screw conveyor 103 to complete the waste recycling process, realize the graded separation of plastic particles, improve the purity of recycled materials, reduce the mixing of impurities, and thus improve the recycling quality of plastic particles. At the same time, it achieves efficient recycling and purity improvement of plastic waste, reducing resource waste and environmental pollution.

[0043] 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 waste recycling and processing device for the production process of plastic bottles, comprising an outer shell (1) and a tank (2), characterized in that: The shell (1) is equipped with a crushing mechanism (11) inside, and a feeding hopper (3) is fixedly connected to the top of the shell (1). The shell (1) is connected to the tank (2) through a conveying mechanism (10). The tank (2) is equipped with a separation mechanism (12) inside. The separation mechanism (12) includes a cylinder (121) and a vertical plate (124). The cylinder (121) is fixedly connected to the top of the inner wall of the tank (2). A separation plate (122) is fixedly connected to the outer wall of the cylinder (121). The separation plate (122) is spirally arranged upwards. A circular hole (123) is provided on the surface of the separation plate (122). The highest end of the separation plate (122) is fixedly connected to the top of the vertical plate (124). The lowest end of the separation plate (122) is fixedly connected to the bottom of the vertical plate (124). A conical inclined surface (125) is provided at the bottom of the inner wall of the tank (2).

2. The waste recycling and processing device in the plastic bottle production process according to claim 1, characterized in that: The conveying mechanism (10) includes a first screw conveyor (101), the top left side of the first screw conveyor (101) is fixedly connected to the bottom of the outer shell (1), and the bottom right side of the first screw conveyor (101) is fixedly connected to the top of the tank (2).

3. The waste recycling and processing device in the plastic bottle production process according to claim 2, characterized in that: The first screw conveyor (101) is set in an inclined state with the left side lower than the right side.

4. The waste recycling and processing device in the plastic bottle production process according to claim 3, characterized in that: The conveying mechanism (10) further includes a second screw conveyor (102), the bottom left side of which is fixedly connected to the top of the outer shell (1), and the right side of which is fixedly connected to the left side of the tank (2).

5. A waste recycling and processing device for the plastic bottle production process according to claim 4, characterized in that: The second screw conveyor (102) is set in an inclined state with the left side higher than the right side.

6. The waste recycling and processing device in the plastic bottle production process according to claim 5, characterized in that: The conveying mechanism (10) also includes a third spiral conveyor (103), the top left side of which is fixedly connected to the bottom of the tank (2).

7. A waste recycling and processing device for the plastic bottle production process according to claim 1, characterized in that: The crushing mechanism (11) includes a first rotating shaft (111), a second rotating shaft (112), and a drive motor (114). The first rotating shaft (111) and the second rotating shaft (112) are rotatably connected to the inner wall of the outer shell (1). Crushing rollers (113) are fixedly connected to the outer walls of the first rotating shaft (111) and the second rotating shaft (112). The drive motor (114) is fixedly connected to the front of the outer shell (1). The rear side of the output shaft of the drive motor (114) is fixedly connected to the front side of the first rotating shaft (111).

8. A waste recycling and processing device for the production process of plastic bottles according to claim 7, characterized in that: The crushing mechanism (11) further includes a first gear (115) and a second gear (116). The first gear (115) is fixedly connected to the outer wall of the first rotating shaft (111), and the second gear (116) is fixedly connected to the outer wall of the second rotating shaft (112). The first gear (115) and the second gear (116) mesh with each other.

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