A pretreatment device for polyester recovery ester by-products

Abstract

This utility model provides a pretreatment device for polyester recycling ester by-products, relating to the field of polyester recycling ester by-product treatment technology. It includes a crusher body, with multiple legs fixedly installed at the bottom. An inlet is fixedly installed at the top opening of the crusher body, and an air valve is fixedly installed at the bottom opening. A housing is fixedly installed at the bottom of the air valve, and a grinding mechanism and a striking mechanism are arranged inside the housing. In this utility model, when the crushing components of the crusher body are in operation, a transmission rod drives the grinding blocks to move. When the crushed by-products fall onto the screen plate, the grinding blocks and the screen plate cooperate to further grind and crush the by-products. Simultaneously, a clamping block follows the movement of the grinding blocks and collides with the circular holes on the screen plate, generating vibration on the screen plate, thereby facilitating the falling of the ground by-products.

Description

Technical Field

[0001] This utility model relates to the field of polyester recycling ester by-product treatment technology, specifically a pretreatment device for polyester recycling ester by-products. Background Technology

[0002] Polyester is an important plastic, but its long natural degradation cycle easily causes environmental pollution. To address this issue, various methods exist for recycling polyester materials. Alcohololysis is a commonly used chemical method that can recover polyester raw materials and reuse them to produce new polyester. However, alcohololysis generates a certain amount of waste that cannot be further recycled, commonly known as recycling byproducts, including ester and alcohol byproducts. If these byproducts are not properly treated, they will still cause environmental pollution.

[0003] Currently, a valuable method for recovering ester and alcohol byproducts is pyrolysis, which breaks them down into combustible gases, condensable liquids, and solids at high temperatures. Ester byproducts are lumpy solids at room temperature; direct pyrolysis would be inefficient, negatively impacting the pyrolysis effect. Therefore, it is necessary to study the pretreatment of ester byproducts to improve the efficiency of subsequent pyrolysis processes.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] Pretreatment of ester byproducts includes operations such as crushing, mixing, and heating. During the crushing process, it was found that the byproducts tend to adhere and clog the grinding media when further ground into smaller particles, resulting in a slow discharge rate and consequently affecting subsequent reaction processes.

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a pretreatment device for recovering polyester ester byproducts.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0008] An embodiment of this utility model provides a pretreatment device for polyester recycling ester by-products, including a crusher body, a plurality of leg columns fixedly installed at the bottom of the crusher body, an inlet fixedly installed at the top opening of the crusher body, an air valve fixedly installed at the bottom opening of the crusher body, a housing fixedly installed at the bottom of the air valve, and a grinding mechanism and a striking mechanism provided on the inner side of the housing.

[0009] The grinding mechanism is used to further grind the by-products after the crusher body is crushed. The striking mechanism is installed on the grinding mechanism and is used to promote the grinding mechanism to generate vibration so as to facilitate material discharge.

[0010] Furthermore, the grinding mechanism includes a transmission rod fixed to the crushing component of the crusher body, and the transmission rod is movably inserted through the inside of the air valve. A grinding block is fixedly installed at the bottom of the transmission rod, and the grinding block is located inside the outer shell. A screen plate is fixedly installed on the inner wall of the outer shell, and the screen plate is in contact with the grinding block.

[0011] Furthermore, the striking mechanism includes a circular shell fixed to the grinding block, a spring connected to the inner wall of the circular shell, a locking block fixedly installed at the end of the spring, and the locking block being located inside the circular shell.

[0012] Furthermore, the position of the locking block corresponds to a ring of circular holes on the sieve plate. The locking block can contact the ring of circular holes on the sieve plate through movement, thereby generating vibration.

[0013] Furthermore, a toothed ring is fixedly installed on the inner wall of the outer shell, and the toothed ring is located at the bottom of the sieve plate.

[0014] Furthermore, a shaft block is provided through the interior of the sieve plate, and a square block is fixedly installed at the bottom of the shaft block. Two round rods are provided on the square block through two bushings. A cleaning brush is fixedly installed on the outer side of each round rod, and a toothed block is fixedly installed on one side of each round rod. The two toothed blocks mesh with the toothed ring together, and a conveying pipe is fixedly installed at the bottom of the outer shell.

[0015] The above-described solution of this utility model has at least the following beneficial effects:

[0016] 1. In this utility model, when the crushing parts of the crusher body are running, the grinding blocks are driven to move through the transmission rod. When the crushed by-products fall onto the screen plate, the grinding blocks and the screen plate cooperate to further grind and crush the by-products. At the same time, the clamping block moves with the grinding blocks and collides with the round holes on the screen plate, causing the screen plate to vibrate, thereby facilitating the falling of the ground by-products.

[0017] 2. In this utility model, the shaft block drives the square block to move under the support of the transmission rod, so that the square block drives the cleaning brush to move through the bushing and the round rod. The round rod drives the toothed block to mesh with the toothed ring, so that the toothed block can drive the cleaning brush to rotate through the round rod. By rubbing the cleaning brush against the bottom of the screen plate, the cleaning brush can clean the round holes on the screen plate, preventing the by-products after grinding from clogging the round holes, thus facilitating the discharge work. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a pretreatment device for recovering polyester ester by-products according to the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the internal structure of the pretreatment device for recovering polyester ester by-products according to the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the sieve plate of a pretreatment device for recovering polyester ester by-products according to the present invention.

[0021] Figure 4 This is a schematic diagram of the toothed ring structure of a pretreatment device for recovering polyester ester by-products according to the present invention.

[0022] Figure 5 This is a three-dimensional structural diagram of a cleaning brush in a pretreatment device for recovering polyester ester by-products according to the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Crusher body; 2. Leg column; 3. Inlet; 4. Air valve; 5. Outer shell; 6. Screen plate; 7. Transmission rod; 8. Grinding block; 9. Round shell; 10. Spring; 11. Clamping block; 12. Toothed ring; 13. Shaft block; 14. Square block; 15. Round rod; 16. Cleaning brush; 17. Toothed block; 18. Conveying pipe. Detailed Implementation

[0025] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0026] like Figures 1 to 5 As shown, an embodiment of this utility model provides a pretreatment device for polyester recycling ester by-products, including a crusher body 1, a plurality of leg columns 2 fixedly installed at the bottom of the crusher body 1, an inlet 3 fixedly installed at the top opening of the crusher body 1, and a conveying pipe 18 fixedly installed at the bottom of the outer shell 5.

[0027] In this embodiment of the invention, before the crusher operates, the pipeline for conveying by-products is connected to the inlet 3 via connecting parts, and the pipeline for conveying crushed by-products is connected to the outlet of the crusher body 1. The operator controls the crushing components of the crusher body 1 to operate via a controller, causing the crushing components to rotate at high speed. The operator uses an external conveying device to convey the by-products through the pipeline and inlet 3 into the inner side of the crusher body 1, so that the high-speed rotating crushing components crush the by-products passing through the inner side of the crusher body 1. The crushed by-products are then conveyed to the subsequent processing device via the pipeline.

[0028] Figures 1 to 5 As shown, an air valve 4 is fixedly installed at the bottom opening of the crusher body 1. A housing 5 is fixedly installed at the bottom of the air valve 4. A grinding mechanism and a striking mechanism are provided inside the housing 5. The grinding mechanism is used to further grind the by-products after the crusher body 1 is crushed. The striking mechanism is provided on the grinding mechanism and is used to promote the vibration of the grinding mechanism to facilitate material discharge. The grinding mechanism includes a transmission rod 7 fixed on the crushing part of the crusher body 1, and the transmission rod 7 is movably inserted through the inside of the air valve 4. A grinding block 8 is fixedly installed at the bottom of the casing 5, and the grinding block 8 is located inside the casing 5. A sieve plate 6 is fixedly installed on the inner wall of the casing 5, and the sieve plate 6 is in contact with the grinding block 8. The striking mechanism includes a circular shell 9 fixed on the grinding block 8. A spring 10 is connected to the inner wall of the circular shell 9. A locking block 11 is fixedly installed at the end of the spring 10, and the locking block 11 is located inside the circular shell 9. The locking block 11 corresponds to a ring of circular holes on the sieve plate 6. By moving the locking block 11, it can contact the ring of circular holes on the sieve plate 6, thereby generating vibration.

[0029] In this embodiment of the invention, when the crushing component of the crusher body 1 is in operation, the grinding block 8 is driven to move by the transmission rod 7, causing friction between the grinding block 8 and the screen plate 6. When the crushed by-products fall onto the screen plate 6, the grinding block 8 and the screen plate 6 cooperate to further grind and crush the by-products. At the same time, under the action of external force, the grinding block 8 can move the locking block 11 through the round shell 9 and the spring 10. When the locking block 11 moves into the round hole on the screen plate 6, the spring 10 can use its own elasticity to drive the locking block 11 to move downward and vibrate with the screen plate 6. When the locking block 11 moves out of the round hole, under the support of the spring 10, the locking block 11 can move to the inside of the round shell 9, thereby facilitating the falling of the ground by-products.

[0030] Figures 1 to 5As shown, a toothed ring 12 is fixedly installed on the inner wall of the outer shell 5, and the toothed ring 12 is located at the bottom of the sieve plate 6. A shaft block 13 is provided through the interior of the sieve plate 6. A square block 14 is fixedly installed at the bottom of the shaft block 13. Two round rods 15 are provided on the square block 14 through two bushings. A cleaning brush 16 is fixedly installed on the outer side of each round rod 15. A toothed block 17 is fixedly installed on one side of each round rod 15. The two toothed blocks 17 mesh with the toothed ring 12 together.

[0031] In this embodiment of the utility model, the shaft block 13 drives the square block 14 to move under the support of the transmission rod 7, so that the square block 14 drives the cleaning brush 16 to move through the bushing and the round rod 15. The round rod 15 drives the toothed block 17 to mesh with the toothed ring 12, so that the toothed block 17 can drive the cleaning brush 16 to rotate through the round rod 15. By rubbing the cleaning brush 16 against the bottom of the screen plate 6, the cleaning brush 16 can clean the round holes on the screen plate 6, preventing the by-products after grinding from clogging the round holes, thereby facilitating the discharge work.

[0032] Working Principle: Before the crusher starts operating, the pipeline for conveying by-products is connected to inlet 3 via connecting parts, and the pipeline for conveying crushed by-products is connected to the outlet of the crusher body 1. The operator controls the crushing components of the crusher body 1 via a controller, causing them to rotate at high speed. By-products are conveyed into the inside of the crusher body 1 via the pipeline and inlet 3 using an external conveying device. The high-speed rotating crushing components crush the by-products passing through the inside of the crusher body 1. During the operation of the crushing components of the crusher body 1, the grinding blocks 8 move via the transmission rod 7. When the crushed by-products fall onto the screen plate 6, the grinding blocks 8 and the screen plate 6 interact... The by-products are further ground and crushed. At the same time, the clamping block 11 moves with the grinding block 8 and collides with the round holes on the screen plate 6, causing the screen plate 6 to vibrate, which facilitates the falling of the ground by-products. Meanwhile, the shaft block 13 drives the square block 14 to move under the support of the transmission rod 7. The square block 14 drives the cleaning brush 16 to move through the bushing and the round rod 15. The round rod 15 drives the toothed block 17 to mesh with the toothed ring 12, so that the toothed block 17 can drive the cleaning brush 16 to rotate through the round rod 15. The cleaning brush 16 rubs against the bottom of the screen plate 6, so that the cleaning brush 16 can clean the round holes on the screen plate 6. The crushed by-products are transported to the subsequent processing device through the pipeline.

[0033] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A kind of polyester recovery ester by-product pretreatment device, including the crusher body (1), the bottom of the crusher body (1) is fixedly installed with multiple legs (2), the top of the crusher body (1) is fixedly installed with the import (3), it is characterized by: A gas valve (4) is fixedly installed at the bottom opening of the crusher body (1), and a housing (5) is fixedly installed at the bottom of the gas valve (4). A grinding mechanism and a striking mechanism are provided on the inner side of the housing (5). The grinding mechanism is used to further grind the by-products after the crusher body (1) is crushed. The striking mechanism is set on the grinding mechanism and is used to promote the grinding mechanism to generate vibration so as to facilitate material discharge.

2. The pretreatment device for recovering polyester ester by-products according to claim 1, characterized in that: The grinding mechanism includes a transmission rod (7) fixed on the crushing component of the crusher body (1), and the transmission rod (7) is movably inserted through the inside of the air valve (4). A grinding block (8) is fixedly installed at the bottom of the transmission rod (7), and the grinding block (8) is located inside the outer shell (5). A screen plate (6) is fixedly installed on the inner wall of the outer shell (5), and the screen plate (6) is in contact with the grinding block (8).

3. The pretreatment device for recovering polyester ester by-products according to claim 2, characterized in that: The striking mechanism includes a circular shell (9) fixed on the grinding block (8), a spring (10) connected to the inner wall of the circular shell (9), a locking block (11) fixedly installed at the end of the spring (10), and the locking block (11) is located inside the circular shell (9).

4. The pretreatment device for recovering polyester ester by-products according to claim 3, characterized in that: The position of the locking block (11) corresponds to the circular holes on the sieve plate (6). The locking block (11) can contact the circular holes on the sieve plate (6) through movement, thereby generating vibration.

5. The pretreatment device for recovering polyester ester by-products according to claim 4, characterized in that: A toothed ring (12) is fixedly installed on the inner wall of the outer shell (5), and the toothed ring (12) is located at the bottom of the sieve plate (6).

6. The pretreatment apparatus for recovering polyester ester by-products according to claim 5, characterized in that: A shaft block (13) is provided through the inside of the sieve plate (6). A square block (14) is fixedly installed at the bottom of the shaft block (13). Two round rods (15) are provided on the square block (14) through two bushings. A cleaning brush (16) is fixedly installed on the outside of each round rod (15). A toothed block (17) is fixedly installed on one side of each round rod (15). The two toothed blocks (17) mesh with the toothed ring (12). A conveying pipe (18) is fixedly installed at the bottom of the outer shell (5).

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