A pta oxidation residue crushing treatment device and a method of using the same

Abstract

The application discloses a PTA oxidation residue crushing treatment device and a use method thereof, relates to the technical field of PTA oxidation residue crushing treatment devices and use methods thereof, and discloses the PTA oxidation residue crushing treatment device, which comprises a support, a crushing box is fixed to the top of the support, a discharging cover is fixed to the bottom of the crushing box, a supporting plate is fixed to the side wall of the crushing box, a motor is fixed to the top of the supporting plate, and a rotating shaft is fixed to the output end of the motor. The PTA oxidation residue crushing treatment device is provided with a cavity, a mounting plate, a copper pipe, a supporting frame, a guide rod, a semiconductor refrigerating sheet and a copper rod, can cool the crushing roller after heating, solves the problem that the crushing roller is heated due to the frictional force between the crushing roller and the residue during long-time crushing operation of the residue, the residue after heating is prone to softening, and the residue is adhered to the outer wall of the crushing roller and cannot fall off.

Description

Technical Field

[0001] This invention relates to the technical field of PTA oxidation residue crushing and treatment equipment, specifically to a PTA oxidation residue crushing and treatment equipment and its usage method. Background Technology

[0002] Purified terephthalic acid (PTA) is a crucial raw material for the production of polyester (PET) and other plastic products. The PTA production process generates a certain amount of oxidation residue containing organic components such as terephthalic acid and benzoic acid. Direct disposal of this residue would result in resource waste and environmental pollution. Crushing the PTA residue for use as fuel or recovering its valuable components is currently the main resource utilization approach, falling under the category of plastic waste recycling.

[0003] When PTA residue is discharged from the reactor, it is in a high-temperature liquid state. After cooling, it solidifies into blocks. Existing technology usually uses a double-roll crusher for crushing, but there are obvious shortcomings: during the crushing process, the surface of the crushing roller and the residue continuously generate heat through friction, which leads to a significant increase in the roller surface temperature. When the roller surface temperature is too high, the friction between the roller and the PTA residue will also increase when the roller is crushed in a high-temperature environment, which can easily accelerate the wear of the roller and affect its service life. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a PTA oxidation residue crushing and processing device and its usage method, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a PTA oxidation residue crushing and processing device, comprising: a support frame, a crushing box fixed to the top of the support frame, a discharge hood fixed to the bottom of the crushing box, a support plate fixed to the side wall of the crushing box, a motor fixed to the top of the support plate, a rotating shaft fixed to the output end of the motor, a crushing roller fixed to the end of the rotating shaft, and the two ends of the crushing roller penetrating the crushing box and rotatably connected at the penetration point; two sets of crushing rollers are provided, and the two sets of crushing rollers are symmetrically arranged with the center line in the vertical direction of the crushing box as the axis of symmetry; and a cavity is opened on the inner side of the crushing roller. Mounting plate, which is detachably mounted to the end of the crushing roller by bolts; A copper tube passes through a mounting plate, and the outer wall of the copper tube is slidably connected to the mounting plate at the penetration point. The outer wall of the copper tube is in contact with the inner side of the cavity. Cooling water is added inside the copper tube. The copper tube can be used to cool the crushing roller. A support frame is fixed to the side wall of the mounting plate. A guide rod passes through the support frame and is slidably connected at the penetration point. A semiconductor cooling chip is fixed to the end of the guide rod. A copper rod is attached to the side wall of the semiconductor cooling chip. The copper rod passes through the side wall of the copper tube and is fixedly connected at the penetration point. The copper rod is used to cool the cooling water inside the copper tube.

[0006] According to the above technical solution, two sets of copper tubes are provided on the crushing roller, and the two sets of copper tubes are symmetrically arranged with the center line in the vertical direction of the crushing roller as the axis of symmetry. A connecting spring is fixed between the two sets of copper tubes. By setting the connecting spring, the copper tubes can be tightly fitted into the cavity.

[0007] According to the above technical solution, a transmission spring is fixed to the side wall of the semiconductor refrigeration chip, and the end of the transmission spring away from the semiconductor refrigeration chip is fixed to the outer wall of the support frame. By setting the transmission spring, the semiconductor refrigeration chip and the copper rod can be stably attached.

[0008] According to the above technical solution, a slowing device is provided on the crushing box to prevent a large amount of residue from accumulating at the crushing roller; a diffusion device is provided on the side wall of the crushing box to prevent a large amount of residue from falling onto a certain position of the crushing roller.

[0009] According to the above technical solution, the mitigation device includes: a compression block, which is fixed to the outer wall of the rotating shaft; A movable block is slidably mounted on the side wall of a crushing box. An intermittent plate passes through the side wall of the crushing box and is slidably connected at the point of penetration. A hinge rod is hinged to the side wall of the intermittent plate, and the end of the hinge rod away from the intermittent plate is hinged to the end of the movable block. A spring sheet, one side of which is fixed to the side wall of the crushing chamber, and the other side of which is fixed to the bottom protrusion of the intermittent plate.

[0010] According to the above technical solution, a telescopic plate is slidably installed on the top inner side of the intermittent plate. The top of the telescopic plate is flush with the top of the intermittent plate. The telescopic plate is used to prevent material jamming. An elastic sheet is fixed to the side wall of the telescopic plate. The outer wall of the elastic sheet is fixed to the outer wall of the intermittent plate. A guide plate is fixed to the inner side of the crushing box. The guide plate facilitates material feeding to the crushing roller.

[0011] According to the above technical solution, the diffusion device includes: an L-shaped rod, the L-shaped rod being fixed to the side wall of the intermittent plate, and a semi-circular block being fixed to the end of the L-shaped rod; A push rod passes through the side wall of the crushing chamber and is slidably connected at the point of penetration. A long plate is fixed to the end of the push rod, a hemisphere is fixed to the side wall of the long plate, and a diffuser block is fixed to the outer wall of the push rod. A reset spring, one side of which is fixed to the side wall of the long plate, and the other side of which is fixed to the outer wall of the crushing box.

[0012] According to the above technical solution, a striking ball is fixed to the bottom of the long plate, and the striking ball is used to accelerate the falling of residue after crushing.

[0013] A method of using a PTA oxidation residue crushing and treatment device includes the following steps: S1. When it is necessary to treat PTA oxidation residue, the residue is added into the crushing box. S2. By starting the motor, the rotating shaft can be rotated, which in turn drives the two sets of crushing rollers to rotate inward. S3. When the rotating shaft rotates, it can drive the extrusion block to rotate, which will cause the extrusion block to press the moving block upward, and the moving block to press the hinge rod, which can open the intermittent plate and allow the residue to enter the crushing roller for crushing. S4. During crushing, the semiconductor cooling chip can be activated to cool the copper rod, which in turn cools the copper tube, thus cooling the crushing roller.

[0014] This invention provides a PTA oxidation residue crushing and treatment device and its usage method. It has the following beneficial effects: 1. This invention, by setting up a cavity, mounting plate, copper tube, support frame, guide rod, semiconductor cooling chip and copper rod, can cool down the heated crushing roller, solving the problem that the crushing roller can heat up due to the friction between it and the residue during long-term crushing operations, and that the heated crushing roller can accelerate frictional wear and reduce the service life of the crushing roller.

[0015] 2. This invention, by setting a connecting spring, enables the two sets of copper tubes to fit tightly within the cavity, thereby improving the cooling effect on the crushing roller; it prevents the copper tubes from not fitting properly within the cavity, which would hinder the rapid transfer of low temperature to the crushing roller; and by setting a connecting pipe, when the crushing roller rotates, it drives the copper tubes to rotate, and the rotation of the copper tubes promotes the convection and circulation of cooling water between the two sets of copper tubes, thereby breaking the temperature stratification caused by local cooling water stagnation, and making the cooling capacity evenly distributed throughout the cooling circuit, further enhancing the heat dissipation stability under continuous operating conditions.

[0016] 3. By setting up an extrusion block, a moving block, an intermittent plate, a hinge rod, and a guide plate, the present invention enables the residue to enter the crushing roller intermittently and at a slower pace. This solves the problem that when a large amount of residue is added to the crushing roller, it causes the residue to accumulate at the crushing roller, increasing the friction of the crushing roller and causing the temperature of the crushing roller to rise rapidly.

[0017] 4. By setting up a telescopic plate and an elastic sheet, when the two sets of intermittent plates are resetting and not feeding material to the crushing roller, if there is residue between the two sets of intermittent plates, the telescopic plate will be pressed onto the residue. Due to the pressure, the telescopic plate will move towards the surface of the intermittent plate, thus not affecting the resetting of the intermittent plate. This can prevent the intermittent plate from getting stuck and difficult to reset due to residue between the two sets of intermittent plates during resetting.

[0018] 5. This invention, by setting up an L-shaped rod, a semi-circular block, a push rod, a long plate, a return spring, a diffuser block, and a semi-circular ball, enables the diffuser block to move back and forth in the crushing area of ​​the two sets of crushing rollers, dispersing the residue in the crushing area of ​​the crushing rollers and making the residue evenly distributed on the surface of the crushing rollers. This prevents excessive and uneven distribution of residue on the surface of the crushing rollers, which could lead to localized overheating of the crushing rollers. Furthermore, by setting up a striking ball, the invention can accelerate the falling of the crushed residue into the crushing box, preventing the residue from sticking to the inside of the crushing box and thus eliminating the risk of clogging caused by residue accumulation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial structural diagram of the present invention; Figure 3 This is a partial cross-sectional view of the present invention; Figure 4 This is a schematic diagram of the bottom structure of the present invention; Figure 5 This is a partial structural diagram of the present invention; Figure 6 This is a schematic cross-sectional view of the crushing roller structure of the present invention; Figure 7 This is a partial structural diagram of the present invention.

[0020] In the diagram: 1. Bracket; 2. Crushing box; 3. Discharge hood; 4. Support plate; 5. Motor; 6. Rotating shaft; 7. Crushing roller; 8. Cavity; 9. Mounting plate; 10. Copper pipe; 11. Support frame; 12. Guide rod; 13. Semiconductor cooling chip; 14. Transmission spring; 15. Connecting spring; 16. Copper rod; 171. Extrusion block; 172. Moving block; 173. Intermittent plate; 174. Hinge rod; 175. Guide plate; 176. Telescopic plate; 177. Spring sheet; 178. Elastic sheet; 181. L-shaped rod; 182. Semicircular block; 183. Push rod; 184. Long plate; 185. Return spring; 186. Diffusion block; 187. Semisphere; 188. Impact ball; 19. Connecting pipe. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-7 One embodiment of the present invention is a PTA oxidation residue crushing and processing device, comprising: a support 1, a crushing box 2, a discharge hood 3, a support plate 4, a motor 5, a rotating shaft 6, a crushing roller 7, a cavity 8, a mounting plate 9, a copper pipe 10, a support frame 11, a guide rod 12, a semiconductor cooling chip 13, a transmission spring 14, a connecting spring 15, a copper rod 16, and a connecting pipe 19; the crushing box 2 is fixed to the top of the support 1, the discharge hood 3 is fixed to the bottom of the crushing box 2, the support plate 4 is fixed to the side wall of the crushing box 2, the motor 5 is fixed to the top of the support plate 4, and a rotating shaft is fixed to the output end of the motor 5. Shaft 6, with a crushing roller 7 fixed to its end. Both ends of the crushing roller 7 pass through the crushing box 2 and are rotatably connected at the penetration point. Two sets of crushing rollers 7 are provided, symmetrically arranged about the vertical centerline of the crushing box 2. A cavity 8 is formed on the inner side of the crushing roller 7. A mounting plate 9 is detachably mounted to the end of the crushing roller 7 by bolts. By removing the mounting plate 9, copper pipe 10 and other components can be removed for maintenance. Copper pipe 10 passes through the mounting plate 9, with its outer wall slidably connected to the penetration point of the mounting plate 9. The outer wall of copper pipe 10 is also in contact with the inner side of the cavity 8. Cooling water is added inside the copper pipe 10. The copper pipe 10 can cool the crushing roller 7. The support frame 11 is fixed to the side wall of the mounting plate 9. A guide rod 12 passes through the support frame 11 and is slidably connected at the penetration point. A semiconductor cooling chip 13 is fixed to the end of the guide rod 12. A copper rod 16 is attached to the side wall of the semiconductor cooling chip 13. The copper rod 16 passes through the side wall of the copper pipe 10 and is fixedly connected at the penetration point. The copper rod 16 is used to cool the cooling water inside the copper pipe 10. Two sets of copper pipes 10 are provided on the crushing roller 7, and the two sets of copper pipes 10 are symmetrical about the center line of the crushing roller 7 in the vertical direction. The two sets of copper tubes 10 are symmetrically arranged, and a connecting spring 15 is fixed between them. The connecting spring 15 can make the copper tubes 10 fit tightly in the cavity 8. A connecting pipe 19 is fixed between the two sets of copper tubes 10. The connecting pipe 19 is a flexible tube, which allows the distance between the two sets of copper tubes 10 to be adjusted. The connecting pipe 19 is connected to the copper tubes 10. A transmission spring 14 is fixed to the side wall of the semiconductor cooling chip 13. The end of the transmission spring 14 away from the semiconductor cooling chip 13 is fixed to the outer wall of the support frame 11. The transmission spring 14 can make the semiconductor cooling chip 13 and the copper rod 16 fit stably.

[0023] By setting up a cavity 8, mounting plate 9, copper pipe 10, support frame 11, guide rod 12, semiconductor cooling chip 13 and copper rod 16, the heated crushing roller 7 can be cooled down, which solves the problem that the crushing roller 7 can heat up due to the friction between it and the residue during long-term crushing operation, and the heated crushing roller 7 can accelerate frictional wear and reduce the service life of the crushing roller 7. By setting the connecting spring 15, the two sets of copper pipes 10 can be tightly fitted inside the cavity 8, which can improve the cooling effect on the crushing roller 7; prevent the copper pipes 10 from not being fitted inside the cavity 8, which would make it difficult to quickly conduct low temperature to the crushing roller 7; and by setting the connecting pipe 19, when the crushing roller 7 rotates, it drives the copper pipes 10 to rotate. Under the action of rotation, the cooling water between the two sets of copper pipes 10 will circulate, thereby breaking the temperature difference stratification caused by local cooling water stagnation, making the cooling capacity evenly distributed in the entire cooling circuit, and further enhancing the heat dissipation stability under continuous operation conditions.

[0024] In this embodiment, when residue needs to be processed, it is added to the crushing box 2 through the top. By starting the motor 5, the rotating shaft 6 and the crushing roller 7 can be rotated, causing the two sets of crushing rollers 7 to rotate inward to crush the residue. The crushed material is discharged and recycled through the discharge hood 3. During the crushing process, the crushing roller 7 will heat up. By activating the semiconductor cooling chip 13, the copper rod 16 can be cooled. The cooled copper rod 16 can cool the cooling water in the copper tube 10. The cooled cooling water can cool the copper tube 10. The cooled copper tube 10, because it is attached to the cavity 8, can cool the crushing roller 7. When the crushing roller 7 rotates, it can drive the mounting plate 9 to rotate, which can also make the copper tube 10 rotate. Thus, through the connecting pipe 19, the cooling water in the two sets of copper tubes 10 in the crushing tube can circulate, improving the cooling effect.

[0025] Please see Figures 1-7 Based on the above embodiments, in another embodiment of the present invention, a slowing device is provided on the crushing box 2, which is used to prevent a large amount of residue from accumulating at the crushing roller 7. The deceleration device includes: a compression block 171, a moving block 172, an intermittent plate 173, a hinge rod 174, a guide plate 175, a telescopic plate 176, an elastic sheet 178, and a spring sheet 177. The compression block 171 is fixed to the outer wall of the rotating shaft 6. The moving block 172 is slidably mounted on the side wall of the crushing box 2. The intermittent plate 173 passes through the side wall of the crushing box 2 and is slidably connected at the penetration point. A hinge rod 174 is hinged to the side wall of the intermittent plate 173. The end of the hinge rod 174 away from the intermittent plate 173 is hinged to the end of the moving block 172. The spring sheet 177... One side of the spring plate 177 is fixed to the side wall of the crushing box 2, and the other side of the spring plate 177 is fixed to the bottom protrusion of the intermittent plate 173; a telescopic plate 176 is slidably installed on the inner side of the top of the intermittent plate 173, and the top of the telescopic plate 176 is flush with the top of the intermittent plate 173. The telescopic plate 176 is used to prevent material jamming. An elastic plate 178 is fixed to the side wall of the telescopic plate 176, and the outer wall of the elastic plate 178 is fixed to the outer wall of the intermittent plate 173. A guide plate 175 is fixed to the inner side of the crushing box 2, and the guide plate 175 facilitates material feeding to the crushing roller 7. By setting up the extrusion block 171, the moving block 172, the intermittent plate 173, the hinge rod 174 and the guide plate 175, the residue can be intermittently introduced into the crushing roller 7, and the residue can be introduced into the crushing roller 7 at a slower pace. This solves the problem that when a large amount of residue is added to the crushing roller 7, the residue accumulates in the crushing roller 7, which increases the friction of the crushing roller 7 and causes the temperature of the crushing roller 7 to rise rapidly. Furthermore, by setting the telescopic plate 176 and the elastic sheet 178, when the two sets of intermittent plates 173 are resetting and not feeding material to the crushing roller 7, if there is residue between the two sets of intermittent plates 173, the telescopic plate 176 will be pressed onto the residue. Due to the pressure, the telescopic plate 176 will move towards the surface of the intermittent plate 173, thus not affecting the resetting of the intermittent plate 173. This can prevent the intermittent plate 173 from getting stuck and difficult to reset due to residue between the two sets of intermittent plates 173 during resetting.

[0026] A diffusion device is provided on the side wall of the crushing box 2 to prevent a large amount of residue from falling onto a certain position of the crushing roller 7. The diffusion device includes: an L-shaped rod 181, a semi-circular block 182, a push rod 183, a long plate 184, a return spring 185, a diffusion block 186, a semi-circular ball 187, and a striking ball 188. The L-shaped rod 181 is fixed to the side wall of the intermittent plate 173, and the end of the L-shaped rod 181 is fixed with the semi-circular block 182. The push rod 183 passes through the crushing roller 7. The side wall of the crushing chamber 2 is slidably connected through the passage. The end of the push rod 183 is fixed with a long plate 184. A hemispherical ball 187 is fixed with the side wall of the long plate 184. A diffuser block 186 is fixed with the outer wall of the push rod 183. One side of the return spring 185 is fixed with the side wall of the long plate 184, and the other side of the return spring 185 is fixed with the outer wall of the crushing chamber 2. A striking ball 188 is fixed with the bottom of the long plate 184. The striking ball 188 is used to accelerate the falling of residue after crushing.

[0027] By setting up an L-shaped rod 181, a semi-circular block 182, a push rod 183, a long plate 184, a return spring 185, a diffuser block 186, and a semi-circular ball 187, the diffuser block 186 can move back and forth in the crushing area of ​​the two sets of crushing rollers 7 to disperse the residue in the crushing area of ​​the crushing rollers 7, so that the residue is evenly distributed on the surface of the crushing rollers 7, preventing excessive and uneven distribution of residue on the surface of the crushing rollers 7, which would lead to localized overheating of the crushing rollers 7; and by setting up a striking ball 188, the residue after crushing can be accelerated to fall into the crushing box, preventing the residue from sticking to the inside of the crushing box, thereby eliminating the risk of clogging of the crushing box and the difficulty of cleaning caused by residue accumulation.

[0028] In this embodiment, when the rotating shaft 6 rotates, it drives the extrusion block 171 to rotate. When the extrusion block 171 rotates to the point of extruding the bottom of the moving block 172, it causes the moving block 172 to move upward. When the moving block 172 moves upward, it can extrude the hinge rod 174, causing the hinge rod 174 to rotate at the hinge. This allows the hinge rod 174 to push the intermittent plate 173 out of the crushing box 2, opening the channel to the crushing roller 7. This allows the residue to be added to the crushing roller 7 for crushing. When the intermittent plate 173 moves out, it causes the elastic sheet 178 to stretch and deform. When the extrusion block 171 rotates to the point of not extruding the bottom of the moving block 172, the elastic sheet 178 is in a stretched and deformed state, causing the elastic sheet 178 to drive the intermittent plate 173 to reset. This causes the intermittent plate 173 to block the feed channel of the crushing box 2 again, stopping the addition of residue. When the intermittent plate 173 moves, it drives the L-shaped rod 181 to move, causing the L-shaped rod 181 to move the semicircular block 182. This causes the semicircular block 182 to move on the surface of the hemispherical sphere 187, subjecting the hemispherical sphere 187 to compressive force. This force drives the long plate 184 to move towards the crushing box 2, compressing the return spring 185. When the long plate 184 moves, it drives the push rod 183 to move, causing the push rod 183 to move the diffuser block 186 between the crushing rollers 7. When the semicircular block 182 is not halved... When the sphere 187 is squeezed, the return spring 185 is in a compressed state, which can drive the long plate 184 and the push rod 183 to reset, and also reset the diffuser block 186. The diffuser block 186 moves back and forth between the two sets of crushing rollers 7, which can make the residue evenly distributed between the two sets of crushing rollers 7. When the long plate 184 moves back and forth, it can drive the striking ball 188 to move back and forth, so that the striking ball 188 strikes the outer wall of the crushing box 2 back and forth, knocking off the residue attached to the crushing box 2.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PTA oxidation residue crushing and processing device, characterized in that, include: A support (1) is provided, a crushing box (2) is fixed at the top of the support (1), a discharge hood (3) is fixed at the bottom of the crushing box (2), a support plate (4) is fixed on the side wall of the crushing box (2), a motor (5) is fixed at the top of the support plate (4), a rotating shaft (6) is fixed at the output end of the motor (5), a crushing roller (7) is fixed at the end of the rotating shaft (6), and the two ends of the crushing roller (7) pass through the crushing box (2) and are rotatably connected at the point of penetration. Two sets of crushing rollers (7) are provided, and the two sets of crushing rollers (7) are symmetrically arranged with the center line in the vertical direction of the crushing box (2) as the axis of symmetry. A cavity (8) is opened on the inner side of the crushing roller (7). Mounting plate (9), which is detachably mounted on the end of crushing roller (7) by bolts; A copper pipe (10) is inserted through a mounting plate (9). The outer wall of the copper pipe (10) is slidably connected to the insertion point of the mounting plate (9). The outer wall of the copper pipe (10) is attached to the inner side of the cavity (8). Cooling water is added to the copper pipe (10). The copper pipe (10) can be used to cool the crushing roller (7). A support frame (11) is fixed to the side wall of the mounting plate (9). A guide rod (12) passes through the support frame (11) and is slidably connected at the point of penetration. A semiconductor cooling chip (13) is fixed to the end of the guide rod (12). A copper rod (16) is attached to the side wall of the semiconductor cooling chip (13). The copper rod (16) passes through the side wall of the copper pipe (10) and is fixedly connected at the point of penetration. The copper rod (16) is used to cool the cooling water in the copper pipe (10).

2. The PTA oxidation residue crushing and treatment device according to claim 1, characterized in that, Two sets of copper tubes (10) are provided on the crushing roller (7), and the two sets of copper tubes (10) are symmetrically arranged with the center line of the crushing roller (7) in the vertical direction as the axis of symmetry. A connecting spring (15) is fixed between the two sets of copper tubes (10). By setting the connecting spring (15), the copper tubes (10) can be tightly fitted in the cavity (8). A connecting pipe (19) is fixed between the two sets of copper tubes (10), and the connecting pipe (19) is connected to the copper tubes (10).

3. The PTA oxidation residue crushing and treatment device according to claim 2, characterized in that, A transmission spring (14) is fixed to the side wall of the semiconductor cooling chip (13). The end of the transmission spring (14) away from the semiconductor cooling chip (13) is fixed to the outer wall of the support frame (11). By setting the transmission spring (14), the semiconductor cooling chip (13) and the copper rod (16) can be stably attached.

4. The PTA oxidation residue crushing and treatment device according to claim 3, characterized in that, The crushing box (2) is provided with a slowing device to prevent a large amount of residue from accumulating at the crushing roller (7); the side wall of the crushing box (2) is provided with a diffusion device to prevent a large amount of residue from falling onto a location of the crushing roller (7).

5. The PTA oxidation residue crushing and treatment device according to claim 4, characterized in that, The deceleration device includes: a compression block (171), which is fixed to the outer wall of the rotating shaft (6); A movable block (172) is slidably mounted on the side wall of the crushing box (2). An intermittent plate (173) passes through the side wall of the crushing box (2) and is slidably connected at the passage. A hinge rod (174) is hinged to the side wall of the intermittent plate (173), and one end of the hinge rod (174) away from the intermittent plate (173) is hinged to the end of the movable block (172). A spring sheet (177) is fixed on one side of the crushing box (2) and on the other side of the spring sheet (177) is fixed to the bottom protrusion of the intermittent plate (173).

6. The PTA oxidation residue crushing and treatment device according to claim 5, characterized in that, A telescopic plate (176) is slidably installed on the inner top of the intermittent plate (173). The top of the telescopic plate (176) is flush with the top of the intermittent plate (173). The telescopic plate (176) is used to prevent material jamming. An elastic sheet (178) is fixed on the side wall of the telescopic plate (176). The outer wall of the elastic sheet (178) is fixed on the outer wall of the intermittent plate (173). A guide plate (175) is fixed on the inner side of the crushing box (2). The guide plate (175) facilitates feeding material to the crushing roller (7).

7. The PTA oxidation residue crushing and treatment device and its method of use according to claim 6, characterized in that, The diffusion device includes an L-shaped rod (181) fixed to the side wall of the intermittent plate (173), and a semi-circular block (182) fixed to the end of the L-shaped rod (181). Push rod (183) passes through the side wall of crushing box (2) and is slidably connected at the penetration point. A long plate (184) is fixed to the end of the push rod (183). A hemisphere (187) is fixed to the side wall of the long plate (184). A diffuser block (186) is fixed to the outer wall of the push rod (183). A reset spring (185) is fixed on one side of the long plate (184) and on the other side of the crushing box (2).

8. The PTA oxidation residue crushing and treatment device according to claim 7, characterized in that, A striking ball (188) is fixed to the bottom of the long plate (184), the striking ball (188) being used to accelerate the falling of residue after crushing.

9. A method of using a PTA oxidation residue crushing and treatment device, comprising the PTA oxidation residue crushing and treatment device as described in claim 8, characterized in that: Includes the following steps: S1. When it is necessary to treat PTA oxidation residue, the residue is added into the crushing box (2); S2. By starting the motor (5), the rotating shaft (6) can be rotated, thereby driving the two sets of crushing rollers (7) to rotate inward; S3. When the rotating shaft (6) rotates, it can drive the extrusion block (171) to rotate, which will cause the extrusion block (171) to press the moving block (172) to move upward, and the moving block (172) to press the hinge rod (174), which can open the intermittent plate (173) and allow the residue to enter the crushing roller (7) for crushing. S4. During crushing, the semiconductor cooling chip (13) can be activated to cool the copper rod (16), and the copper tube (10) can be cooled by the copper rod (16), so that the copper tube (10) cools the crushing roller (7). S5. After the PTA oxidation residue is crushed, the crushed PTA oxidation residue is discharged and collected through the discharge hood (3).

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