A grinding mechanism for a PTA device

CN224599433UActive Publication Date: 2026-08-07ZHEJIANG YISHENG PETROCHEM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG YISHENG PETROCHEM
Filing Date
2025-08-21
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0004]上述的PTA残渣粉碎装置,在工作中,虽能通过筛板对粉碎中的物料进行筛分过滤,但物料仅通过自然的筛分工作,才可进行下一加工工艺中,使得较多的足以通过筛分孔的物料滞留在搅拌筒内侧,从而导致工作效率降低;因此,针对上述问题提出一种用于PTA装置的研磨机构

Benefits of technology

[0014] 1. This utility model provides a grinding mechanism for a PTA plant. The vibrating screening plate can vibrate and screen the PTA residue inside the grinding cylinder, reducing the accumulation of large amounts of PTA residue on the top of the screening plate. The overall device also reduces the amount of material sufficient to pass through the screening holes that remains inside the grinding cylinder. The overall device improves the efficiency of grinding PTA residue. Furthermore, during the rotation of the first extrusion column, the end of the second spring column can be extruded, causing the connecting column to drive a pair of push plates to reciprocate, pushing the PTA residue on both sides inside the grinding cylinder towards the working area of ​​multiple crushing rods. The overall device improves the grinding efficiency of PTA residue inside the grinding cylinder.

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Abstract

The utility model belongs to chemical industry solid waste treatment technical field, concretely speaking is a kind of grinding mechanism for PTA device, including output motor;The output motor one side side wall is provided with grinding cylinder;The output motor one side side wall is fixed with protective shell;The output motor end portion is rotatably connected with first rotary column;The first rotary column outer side wall is rotatably connected with first transmission belt;The grinding cylinder inboard is rotatably connected with second rotary column;When working, the overall device reduces the condition that more material enough to pass through screening hole is retained in the inboard of grinding cylinder;The overall device improves the efficiency when grinding PTA residue;And the process of first extrusion column rotation, second spring column end portion can be extruded, so that connecting column drives a pair of push plate reciprocating movement, realize the PTA residue of two sides in grinding cylinder interior to push to the working area of multiple groups of crushing rod, the overall device improves the grinding efficiency of PTA residue in grinding cylinder interior.
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Description

Technical Field

[0001] This utility model belongs to the field of chemical solid waste treatment technology, specifically a grinding mechanism for PTA equipment. Background Technology

[0002] To improve resource utilization, workers often use grinding and crushing equipment to grind and crush PTA solid waste, so that it can be recycled and put back into the processing chain, thereby promoting the reuse rate of raw materials.

[0003] In the existing technology, Chinese Patent Publication No. CN219559891U discloses a PTA residue crushing device, which relates to the field of chemical solid waste treatment technology. The device includes a frame with an internal sliding groove, and a grinding device is fixedly connected to the top of the housing. This invention achieves primary shock absorption by injecting a certain amount of gas into the sliding groove. When vibration occurs, the sliding rod slides up and down, causing the top return spring to extend and retract, thus achieving primary shock absorption. When encountering significant vibration, this device can effectively adapt to different levels of vibration through primary and secondary shock absorption. This not only ensures the overall stability of the device but also prevents personnel from being injured by falling parts due to vibration during operation. Furthermore, since all parts are located internally, it effectively prevents corrosion and rust, extending the device's service life.

[0004] The aforementioned PTA residue crushing device can screen and filter the crushed material through a sieve plate during operation. However, the material can only proceed to the next processing step after natural screening, resulting in a large amount of material that is sufficient to pass through the sieve holes remaining inside the mixing drum, thus reducing working efficiency. Therefore, a grinding mechanism for PTA equipment is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a grinding mechanism for a PTA device.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A grinding mechanism for a PTA unit, comprising an output motor; a grinding cylinder is provided on one side wall of the output motor; a protective shell is fixedly connected to one side wall of the output motor; a first rotating column is rotatably connected to the end of the output motor; a first transmission belt is rotatably connected to the outer wall of the first rotating column; a second rotating column is rotatably connected to the inner side of the grinding cylinder; the end of the second rotating column is located inside the protective shell; the inner side wall of the first transmission belt and the outer side wall of the second rotating column are in contact with each other; multiple sets of crushing rods are fixedly connected to the outer side wall of the second rotating column; a third rotating column is fixedly connected to the end of the second rotating column away from the first transmission belt; the third rotating column is located on the grinding cylinder... The grinding cylinder has the following external features: an outer wall of the third rotating column with a first extrusion column fixedly connected to it; a slidable screen plate connected to the bottom of the inner side of the grinding cylinder; a feed hopper connected to the top of the grinding cylinder; a discharge pipe connected to the bottom of the grinding cylinder; multiple sets of first spring columns fixedly connected to one side of the grinding cylinder; a second extrusion column slidably connected to one side of the grinding cylinder; the second extrusion column and the slidable screen plate connected to each other; the first spring columns and the slidable screen plate connected to each other; a pair of sliding grooves opened on the side wall of the grinding cylinder; a push plate slidably connected to the inner side of the sliding grooves; the outer wall of the push plate and the inner wall of the grinding cylinder fitting together; a connecting column fixedly connected between the pair of push plates; a second spring column fixedly connected to the side wall of the grinding cylinder; and the second spring column and the connecting column connected to each other.

[0007] Preferably, a feed plate is fixedly connected to the inner wall of the feed hopper; multiple sets of feed slots are provided through the top of the feed plate; a rotating plate is rotatably connected to the top of the feed plate; a first toothed column is fixedly connected to the top of the rotating plate; a storage column is provided at the top of the feed hopper; a second toothed column is rotatably connected to the side wall of the storage column; the second toothed column meshes with the first toothed column; a second transmission belt is rotatably connected to the end of the second toothed column away from the storage column; the inner wall of the second transmission belt is in contact with the outer wall of the third rotating column.

[0008] Preferably, a support column is rotatably connected to the outer wall of the feed hopper; a first support wheel is fixedly connected to the end of the support column away from the feed hopper; the outer wall of the first support wheel is in contact with the inner wall of the second transmission belt.

[0009] Preferably, an elastic inner wall is fixedly connected to the top of the inner side of the feed hopper; a sliding column is slidably connected to the inner side of the feed hopper; the sliding column is connected to the elastic inner wall; a rotating ball is rotatably connected to the side wall of the sliding column; a third extrusion column is fixedly connected to the outer wall of the supporting rotating column; the third extrusion column and the rotating ball are arranged on the same vertical plane.

[0010] Preferably, a closed flexible plate is fixedly connected to the inner sidewall of the chute; the closed flexible plate is connected to the sidewall of the push plate.

[0011] Preferably, a second support wheel is rotatably connected to the side wall of the protective housing; the outer side wall of the second support wheel is in contact with the inner side wall of the first transmission belt.

[0012] Preferably, the sidewall of the first extrusion column is rotatably connected to a fitting roller.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model provides a grinding mechanism for a PTA plant. The vibrating screening plate can vibrate and screen the PTA residue inside the grinding cylinder, reducing the accumulation of large amounts of PTA residue on the top of the screening plate. The overall device also reduces the amount of material sufficient to pass through the screening holes that remains inside the grinding cylinder. The overall device improves the efficiency of grinding PTA residue. Furthermore, during the rotation of the first extrusion column, the end of the second spring column can be extruded, causing the connecting column to drive a pair of push plates to reciprocate, pushing the PTA residue on both sides inside the grinding cylinder towards the working area of ​​multiple crushing rods. The overall device improves the grinding efficiency of PTA residue inside the grinding cylinder.

[0015] 2. This utility model provides a grinding mechanism for a PTA device. The rotating plate can block the PTA residue inside the feed hopper, thereby reducing the situation where the processing efficiency is reduced due to the large amount of PTA residue inside the grinding cylinder. When the third rotating column rotates, the second toothed column can be driven to rotate through the second transmission belt, and the second toothed column can drive the first toothed column and the rotating plate to rotate together. The rotating plate can push the PTA residue inside the feed hopper to the inside of the feed trough. Finally, the PTA residue can enter the grinding cylinder through the inside of the feed trough for grinding. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 This is a perspective view of the output motor of this utility model;

[0018] Figure 2 This is a perspective view of the grinding cylinder in this utility model;

[0019] Figure 3 This is a perspective view of the feed hopper in this utility model;

[0020] Figure 4 This is a perspective view of the screening plate in this utility model;

[0021] Figure 5This is a perspective view of the feed hopper in this utility model.

[0022] Legend:

[0023] 1. Output motor; 11. Grinding cylinder; 12. Protective shell; 13. First rotating column; 14. First transmission belt; 15. Second rotating column; 16. Crushing rod; 17. Third rotating column; 18. First extrusion column; 19. Screening plate; 110. First spring column; 111. Second extrusion column; 112. Slide groove; 113. Push plate; 114. Connecting column; 115. Second spring column; 116. Feed hopper; 117. Discharge pipe; 2. Feed plate; 21. Feed trough; 22. Rotating plate; 23. First toothed column; 24. Placement column; 25. Second toothed column; 26. Second transmission belt; 3. Supporting rotating column; 31. First support wheel; 4. Elastic inner wall; 41. Slide column; 42. Rotating ball; 43. Third extrusion column; 5. Enclosed soft plate; 6. Second support wheel; 7. Adhesive rotating wheel. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Specific implementation examples are given below.

[0026] Please see Figures 1-5This utility model provides a grinding mechanism for a PTA unit, including an output motor 1; a grinding cylinder 11 is provided on one side wall of the output motor 1; a protective shell 12 is fixedly connected to one side wall of the output motor 1; a first rotating column 13 is rotatably connected to the end of the output motor 1; a first transmission belt 14 is rotatably connected to the outer wall of the first rotating column 13; a second rotating column 15 is rotatably connected to the inner side of the grinding cylinder 11; the end of the second rotating column 15 is located inside the protective shell 12; the inner wall of the first transmission belt 14 and the outer wall of the second rotating column 15 are in contact with each other; multiple sets of crushing rods 16 are fixedly connected to the outer wall of the second rotating column 15; the second rotating column 15 is located away from the first transmission belt 14. A third rotating column 17 is fixedly connected to the end of the grinding cylinder 11; the third rotating column 17 is located on the outside of the grinding cylinder 11; a first extrusion column 18 is fixedly connected to the outer wall of the third rotating column 17; a sieve plate 19 is slidably connected to the bottom of the inner side of the grinding cylinder 11; a feed hopper 116 is connected to the top of the grinding cylinder 11; a discharge pipe 117 is connected to the bottom of the grinding cylinder 11; multiple sets of first spring columns 110 are fixedly connected to one side of the grinding cylinder 11; a second extrusion column 111 is slidably connected to one side of the grinding cylinder 11; the second extrusion column 111 is connected to the sieve plate 19; the first spring column 110 is connected to the sieve plate 19; a pair of sliding grooves 112 are opened on the side wall of the grinding cylinder 11; the sliding grooves 11... A push plate 113 is slidably connected to the inner side of the grinding cylinder 11; the outer wall of the push plate 113 is in contact with the inner wall of the grinding cylinder 11; a connecting column 114 is fixedly connected between a pair of push plates 113; a second spring column 115 is fixedly connected to the side wall of the grinding cylinder 11; the second spring column 115 is connected to the connecting column 114; during operation, the output motor 1 is started, and the output motor 1 drives the second rotating column 15 to rotate through the first rotating column 13 and the first transmission belt 14. The rotating second rotating column 15 can drive multiple sets of crushing rods 16 to grind and crush the PTA residue inside the grinding cylinder 11, and the crushed residue inside the grinding cylinder 11 can be discharged to the outside through the inner side of the screening plate 19 and the discharge pipe 117; and During the rotation of the second rotating column 15, the first extrusion column 18 can be driven to rotate by the third rotating column 17. The rotating first extrusion column 18 can intermittently extrude the screening plate 19 through the second extrusion column 111, thereby causing the screening plate 19 to vibrate. Multiple sets of first spring columns 110 can drive the screening plate 19 to reset. The vibrating screening plate 19 can perform vibration screening of the PTA residue inside the grinding cylinder 11. The overall device reduces the occurrence of a large amount of PTA residue accumulating on the top of the screening plate 19. The overall device also reduces the occurrence of a large amount of material sufficient to pass through the screening holes remaining inside the grinding cylinder 11. The overall device improves the efficiency of grinding PTA residue.Furthermore, during the rotation of the first extrusion column 18, it can extrude force on the end of the second spring column 115, thereby causing the connecting column 114 to drive a pair of push plates 113 to reciprocate. This pushes the PTA residue on both sides inside the grinding cylinder 11 towards the working area of ​​the multiple crushing rods 16, thus improving the overall grinding efficiency of the PTA residue inside the grinding cylinder 11.

[0027] Furthermore, such as Figures 3-5 As shown, a feed plate 2 is fixedly connected to the inner wall of the feed hopper 116; multiple sets of feed slots 21 are provided through the top of the feed plate 2; a rotating plate 22 is rotatably connected to the top of the feed plate 2; a first toothed column 23 is fixedly connected to the top of the rotating plate 22; a storage column 24 is provided on the top of the feed hopper 116; a second toothed column 25 is rotatably connected to the side wall of the storage column 24; the second toothed column 25 meshes with the first toothed column 23; a second transmission belt 26 is rotatably connected to the end of the second toothed column 25 away from the storage column 24; the inner wall of the second transmission belt 26 is in contact with the outer wall of the third rotating column 17; [Working] During this process, the rotating plate 22 can block the PTA residue inside the feed hopper 116, thereby reducing the possibility of reduced processing efficiency due to a large amount of PTA residue inside the grinding cylinder 11. When the third rotating column 17 rotates, the second toothed column 25 can be driven to rotate by the second transmission belt 26, and the second toothed column 25 can drive the first toothed column 23 and the rotating plate 22 to rotate together. The rotating plate 22 can push the PTA residue inside the feed hopper 116 to the inside of the feed trough 21. Finally, the PTA residue can enter the grinding cylinder 11 through the inside of the feed trough 21 for grinding.

[0028] Furthermore, such as Figure 4 As shown, a support column 3 is rotatably connected to the outer wall of the feed hopper 116; a first support wheel 31 is fixedly connected to the end of the support column 3 away from the feed hopper 116; the outer wall of the first support wheel 31 is in contact with the inner wall of the second transmission belt 26; during operation, the support column 3 and the first support wheel 31 cooperate with each other to support the middle part of the second transmission belt 26, thereby reducing the possibility of the middle part of the second transmission belt 26 sagging due to long-term operation; the overall device improves the stability of the second transmission belt 26 during long-term operation.

[0029] Furthermore, such as Figure 3As shown, an elastic inner wall 4 is fixedly connected to the top inner side of the feed hopper 116; a sliding column 41 is slidably connected to the inner side of the feed hopper 116; the sliding column 41 is connected to the elastic inner wall 4; a rotating ball 42 is rotatably connected to the side wall of the sliding column 41; a third extrusion column 43 is fixedly connected to the outer wall of the supporting rotating column 3; the third extrusion column 43 and the rotating ball 42 are arranged on the same vertical plane; during operation, the elastic inner wall 4 is made of elastic material; during the rotation of the second transmission belt 26, it can drive the first support wheel 31 and... The rotating support column 3 rotates, and the rotating support column 3 can drive the third extrusion column 43 to intermittently extrude the rotating ball 42, so that the sliding column 41 slides back and forth on the side wall of the feed hopper 116. During the movement of the sliding column 41, it can extrude the elastic inner wall 4, causing the elastic inner wall 4 to vibrate and shake off the PTA residue attached to the inner side wall of the elastic inner wall 4. The whole device reduces the occurrence of PTA residue adhering to the inner side wall of the feed hopper 116 and improves the cleanliness of the feed hopper 116.

[0030] Furthermore, such as Figure 1 As shown, a sealing flexible plate 5 is fixedly connected to the inner wall of the chute 112; the sealing flexible plate 5 is connected to the side wall of the push plate 113; during operation, the sealing flexible plate 5 can block the PTA residue inside the grinding cylinder 11, thereby reducing the occurrence of PTA residue splashing from the inside of the chute 112 to the outside; the overall device improves the stability when processing PTA residue; and improves the working environment around the grinding cylinder 11.

[0031] Furthermore, such as Figure 2 As shown, a second support wheel 6 is rotatably connected to the side wall of the protective housing 12; the outer side wall of the second support wheel 6 is in contact with the inner side wall of the first transmission belt 14; during operation, the second support wheel 6 can support the middle part of the first transmission belt 14, thereby improving the stability of the first transmission belt 14 during long-term operation and reducing the occurrence of sagging caused by long-term operation of the middle part of the first transmission belt 14.

[0032] Furthermore, such as Figure 3 As shown, the first extrusion column 18 is rotatably connected to the side wall of the fitting wheel 7. During operation, when the first extrusion column 18 extrudes the end of the second spring column 115, the fitting wheel 7 rotates accordingly. The fitting wheel 7 can effectively reduce the long-term friction between the contact surfaces of the first extrusion column 18 and the second spring column 115, which can lead to severe wear. The overall device improves the working life of the first extrusion column 18 and the second spring column 115.

[0033] Working principle: During operation, the output motor 1 is started, and the output motor 1 drives the second rotating column 15 to rotate through the first rotating column 13 and the first transmission belt 14. The rotating second rotating column 15 can drive multiple sets of crushing rods 16 to grind and crush the PTA residue inside the grinding cylinder 11, and the crushed residue inside the grinding cylinder 11 can be discharged to the outside through the inner side of the screening plate 19 and the discharge pipe 117. During the rotation of the second rotating column 15, the first extrusion column 18 can be driven to rotate through the third rotating column 17. The rotating first extrusion column 18 can intermittently extrude the screening plate 19 through the second extrusion column 111, thereby causing the screening plate 19 to vibrate. Multiple sets of first spring columns 110 can drive the screening plate 19 to reset. The vibrating screening plate 19 can... The PTA residue inside the grinding cylinder 11 is vibrated and screened, reducing the accumulation of large amounts of PTA residue on the top of the screening plate 19. The device also reduces the amount of material sufficient to pass through the screening holes that remains inside the grinding cylinder 11, thus improving the efficiency of grinding the PTA residue. Furthermore, during the rotation of the first extrusion column 18, it can extrude force on the end of the second spring column 115, causing the connecting column 114 to drive a pair of push plates 113 to reciprocate, pushing the PTA residue on both sides of the grinding cylinder 11 towards the working area of ​​the multiple crushing rods 16. This further improves the grinding efficiency of the PTA residue inside the grinding cylinder 11. During operation, the rotating plate 22 can... The PTA residue is blocked, thus reducing the possibility of reduced processing efficiency due to a large amount of PTA residue inside the grinding cylinder 11. During the rotation of the third rotating column 17, the second transmission belt 26 drives the second toothed column 25 to rotate, and the second toothed column 25 simultaneously drives the first toothed column 23 and the rotating plate 22 to rotate. The rotating plate 22 pushes the PTA residue inside the feed hopper 116 towards the feed trough 21, ultimately allowing the PTA residue to enter the grinding cylinder 11 for grinding. During operation, the supporting rotating column 3 and the first supporting wheel 31 cooperate to support the middle section of the second transmission belt 26, thus reducing the risk of damage caused by prolonged operation of the middle section of the second transmission belt 26. The second transmission belt 26 sags in the middle; the overall device improves the stability of the second transmission belt 26 during long-term operation; during operation, the elastic inner wall 4 is made of elastic material; during the rotation of the second transmission belt 26, it can drive the first support wheel 31 and the support column 3 to rotate, and the rotating support column 3 can drive the third extrusion column 43 to intermittently extrude the rotating ball 42, so that the sliding column 41 slides back and forth on the side wall of the feed hopper 116, and during the movement of the sliding column 41, it can extrude the elastic inner wall 4, causing the elastic inner wall 4 to vibrate and shake off the PTA residue attached to the inner side wall of the elastic inner wall 4; the overall device reduces the occurrence of PTA residue adhering to the inner side wall of the feed hopper 116, and the overall device improves the cleanliness of the feed hopper 116;During operation, the enclosed flexible plate 5 blocks PTA residue inside the grinding cylinder 11, thereby reducing the splashing of PTA residue from the inside of the chute 112 to the outside; the overall device improves the stability of processing PTA residue and enhances the working environment around the grinding cylinder 11; during operation, the second support wheel 6 supports the middle of the first transmission belt 14, thereby improving the stability of the first transmission belt 14 during long-term operation and reducing the possibility of sagging due to prolonged operation of the middle of the first transmission belt 14; during operation, when the first extrusion column 18 extrudes the end of the second spring column 115, the contact wheel 7 rotates accordingly, effectively reducing the long-term friction between the contact surfaces of the first extrusion column 18 and the second spring column 115, thus preventing severe wear; the overall device extends the service life of the first extrusion column 18 and the second spring column 115.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A grinding mechanism for a PTA plant, comprising an output motor (1); characterized in that: A grinding cylinder (11) is provided on one side wall of the output motor (1); a protective shell (12) is fixedly connected to one side wall of the output motor (1); a first rotating column (13) is rotatably connected to the end of the output motor (1); a first transmission belt (14) is rotatably connected to the outer wall of the first rotating column (13); a second rotating column (15) is rotatably connected to the inner side of the grinding cylinder (11); the end of the second rotating column (15) is located inside the protective shell (12); the inner wall of the first transmission belt (14) and the outer wall of the second rotating column (15) are in close contact; multiple sets of crushing rods (16) are fixedly connected to the outer wall of the second rotating column (15); a third rotating column (17) is fixedly connected to the end of the second rotating column (15) away from the first transmission belt (14); the third rotating column (17) is located outside the grinding cylinder (11); a first extrusion column (18) is fixedly connected to the outer wall of the third rotating column (17); and a sliding connection is made to the bottom of the inner side of the grinding cylinder (11). A screening plate (19); a feed hopper (116) is connected to the top of the grinding cylinder (11); a discharge pipe (117) is connected to the bottom of the grinding cylinder (11); multiple sets of first spring columns (110) are fixedly connected to one side of the grinding cylinder (11); a second extrusion column (111) is slidably connected to one side of the grinding cylinder (11); the second extrusion column (111) is connected to the screening plate (19); the first spring columns (110) are connected to the screening plate (19). Interconnected; a pair of sliding grooves (112) are provided on the side wall of the grinding cylinder (11); a push plate (113) is slidably connected to the inner side of the sliding groove (112); the outer side wall of the push plate (113) is in contact with the inner side wall of the grinding cylinder (11); a connecting column (114) is fixed between the pair of push plates (113); a second spring column (115) is fixed to the side wall of the grinding cylinder (11); the second spring column (115) is connected to the connecting column (114).

2. The grinding mechanism for a PTA apparatus as described in claim 1, characterized in that: A feeding plate (2) is fixedly connected to the inner wall of the feeding hopper (116); multiple feeding slots (21) are provided through the top of the feeding plate (2); a rotating plate (22) is rotatably connected to the top of the feeding plate (2); a first toothed column (23) is fixedly connected to the top of the rotating plate (22); a storage column (24) is provided on the top of the feeding hopper (116); a second toothed column (25) is rotatably connected to the side wall of the storage column (24); the second toothed column (25) meshes with the first toothed column (23); a second transmission belt (26) is rotatably connected to the end of the second toothed column (25) away from the storage column (24); the inner wall of the second transmission belt (26) is in contact with the outer wall of the third rotating column (17).

3. A grinding mechanism for a PTA apparatus as described in claim 2, characterized in that: The outer wall of the feed hopper (116) is rotatably connected to a support column (3); the end of the support column (3) away from the feed hopper (116) is fixedly connected to a first support wheel (31); the outer wall of the first support wheel (31) is in contact with the inner wall of the second transmission belt (26).

4. A grinding mechanism for a PTA apparatus as described in claim 3, characterized in that: An elastic inner wall (4) is fixedly connected to the top of the inner side of the feed hopper (116); a sliding column (41) is slidably connected to the inner side of the feed hopper (116); the sliding column (41) is connected to the elastic inner wall (4); a rotating ball (42) is rotatably connected to the side wall of the sliding column (41); a third extrusion column (43) is fixedly connected to the outer wall of the supporting rotating column (3); the third extrusion column (43) and the rotating ball (42) are arranged on the same vertical plane.

5. A grinding mechanism for a PTA apparatus as described in claim 1, characterized in that: A closed soft plate (5) is fixed to the inner wall of the slide (112); the closed soft plate (5) is connected to the side wall of the push plate (113).

6. A grinding mechanism for a PTA apparatus as described in claim 1, characterized in that: The protective housing (12) has a second support wheel (6) rotatably connected to its side wall; the outer side wall of the second support wheel (6) is in contact with the inner side wall of the first transmission belt (14).

7. A grinding mechanism for a PTA apparatus as described in claim 1, characterized in that: The first extrusion column (18) has a fitting roller (7) rotatably connected to its side wall.

Citation Information

Patent Citations

  • PTA (pure terephthalic acid) residue crushing device

    CN219559891U