Treatment and utilization device for thermal insulation composite pipe

Abstract

The invention discloses a thermal insulation composite pipe treatment and utilization device, and relates to the technical field of thermal insulation composite pipe treatment and utilization, the thermal insulation composite pipe treatment and utilization device comprises a bottom plate and a pyrolyzing furnace arranged at the upper end of the bottom plate, the pyrolyzing furnace is provided with a smoke exhaust pipe, a device box is arranged above the pyrolyzing furnace, and the bottom of the device box is provided with a discharge hopper; the discharging hopper is connected with the input end of the pyrolyzing furnace, a rotating groove is formed in the device box, a box cover is fixed to the outer wall of the device box, a screening mechanism is arranged in the rotating groove, and a smashing mechanism located on the inner side of the screening mechanism is arranged on the inner side wall of the box cover. Through the structural design of dynamic screening and circular treatment, the problem of blockage or incomplete classification caused by traditional static screening is solved, the uniformity and efficiency of subsequent pyrolytic reaction are improved, efficient recycling of waste heat is achieved, and energy consumption in the drying process is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of processing and utilization of thermal insulation composite pipe, and particularly relates to a processing and utilization device of thermal insulation composite pipe. BACKGROUND

[0002] As the core infrastructure in the fields of central heating, district cooling, petrochemical industry and long-distance pipeline, the performance of thermal insulation composite pipe directly determines the energy utilization efficiency and system operation stability. Glass fiber reinforced plastic has become the preferred material for the inner lining of thermal insulation composite pipe due to its excellent strength, corrosion resistance, low thermal conductivity and design flexibility. With the increasing application amount, the waste generated after the thermal insulation composite pipe reaches the service life is also increasing. If these wastes are not properly treated, not only the resources will be wasted, but also the environment will be seriously polluted.

[0003] In the processing and utilization process of the thermal insulation composite pipe, the granulated glass fiber reinforced plastic material usually needs to be screened, and then the screened material is introduced into a pyrolysis furnace for pyrolysis treatment. The material screening is a key link to ensure the quality of subsequent treatment. The traditional recycling device mostly adopts a static screening mode. In the static screening process, the material is easy to accumulate on the screen, causing the screen hole to be blocked and affecting the screening efficiency, and the substandard material cannot be returned in time for reprocessing.

[0004] In addition, a large amount of flue gas is generated in the pyrolysis process of the glass fiber reinforced plastic material, and the flue gas carries a large amount of waste heat. However, the traditional recycling device often does not effectively recycle and utilize this part of waste heat. The flue gas is directly discharged into the atmosphere, which not only causes waste of energy. SUMMARY

[0005] The present application aims at solving the problems in the prior art and provides a processing and utilization device of thermal insulation composite pipe.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: A processing and utilization device of thermal insulation composite pipe, comprising a bottom plate, a pyrolysis furnace arranged at the upper end of the bottom plate, wherein an exhaust pipe is arranged on the pyrolysis furnace, a device box is arranged above the pyrolysis furnace, a discharge hopper is arranged at the bottom of the device box, the discharge hopper is connected with the input end of the pyrolysis furnace, a rotating groove is arranged in the device box, a box cover is fixed on the outer wall of the device box, a screening mechanism is arranged in the rotating groove, a crushing mechanism is arranged on the inner side wall of the box cover and located in the inner side of the screening mechanism, a driving mechanism is arranged on the outer wall of the device box and connected with the screening mechanism and the crushing mechanism, a feeding mechanism is arranged on the outer side wall of the box cover and connected with the crushing mechanism, and a drying mechanism is arranged on the exhaust pipe and connected with the feeding mechanism.

[0007] As a further improvement of the present invention, the screening mechanism includes a rotating frame rotatably disposed inside the rotating groove, a plurality of screen plates are fixedly embedded on the side wall of the rotating frame, the plurality of screen plates are distributed at equal intervals along the circumference of the rotating frame, and a plurality of partitions are fixed on the inner wall of the rotating frame, the plurality of partitions are distributed at equal intervals along the circumference of the rotating frame, and the partitions are spaced apart from the screen plates.

[0008] As a further improvement of the present invention, the crushing mechanism includes a crushing seat disposed inside the rotating frame. The crushing seat is fixed to the inner wall of the box cover. A receiving hopper is fixed to the upper end of the crushing seat. A crushing chamber is provided at the upper end of the crushing seat. The crushing chamber is connected to the lower end of the crushing seat. A device cavity located below the crushing chamber is provided inside the crushing seat. A grinding seat is provided inside the crushing chamber. A grinding sleeve that cooperates with the grinding seat is fixedly embedded on the inner wall of the crushing chamber. A rotating column is fixed to the lower end of the grinding seat. The lower end of the rotating column penetrates the inner bottom wall of the crushing chamber and is rotatably connected to the inner bottom wall of the device cavity.

[0009] As a further improvement of the present invention, the driving mechanism includes a fixed frame fixedly connected to the outer wall of the device box. A rotating sleeve rotatably connected to the fixed frame is provided through the side wall of the fixed frame near the device box. A motor is installed on the side wall of the fixed frame away from the device box. A third gear is fixedly sleeved on the outer wall of the rotating sleeve. A sleeve rod is slidably inserted inside the rotating sleeve. The outer wall of the sleeve rod has a rectangular portion and a concave ring portion. The rotating sleeve is sleeved on the outside of the rectangular portion. A connecting ring is rotatably sleeved on the outside of the concave ring portion. The sleeve rod passes through the device box and the rotating frame. The sleeve rod is rotatably connected to the device box and fixedly connected to the rotating frame. The inner sleeve rod... A rotating shaft is inserted into the device. One end of the rotating shaft passes through the crushing seat and extends into the interior of the device cavity. A fifth gear is fixed to the end of the rotating shaft located inside the device cavity. A fourth gear is fixedly sleeved on the side wall of the rotating column. The fourth gear meshes with the fifth gear. The other end of the rotating shaft is fixedly connected to the output shaft of the motor. A first gear is fixedly sleeved on the side wall of the rotating shaft. A second gear is rotatably connected to the inner top wall of the fixed frame. The third gear and the first gear mesh on both sides of the second gear, respectively. A linkage rod is rotatably connected to the lower edge of the second gear. The end of the linkage rod away from the second gear is rotatably connected to the side wall of the connecting ring.

[0010] As a further improvement of the present invention, the feeding mechanism includes a feeding hopper fixedly connected to the outer wall of the box cover, a feeding pipe connected to the lower end of the feeding hopper, the end of the feeding pipe away from the feeding hopper passing through the box cover and the receiving hopper, a hollow air outlet chamber provided inside the feeding hopper, and air outlet holes communicating with the air outlet chamber evenly distributed on the inner bottom wall of the feeding hopper.

[0011] As a further improvement of the present invention, the drying mechanism includes a heat exchange sleeve fitted on the outer wall of the exhaust pipe, an air inlet pipe connected to the lower side wall of the heat exchange sleeve, a fan installed on the outer wall of the feed hopper, the output end of the fan communicating with the air outlet chamber, an air guide pipe connected to the input end of the fan, and the end of the air guide pipe away from the fan being connected to the heat exchange sleeve.

[0012] As a further improvement of the present invention, arc-shaped plates are fixed on both opposite side walls of the receiving hopper, and the arc-shaped plates fit against the inner side of the rotating frame.

[0013] As a further improvement of the present invention, a valve is provided on the feed pipe.

[0014] As a further improvement of the present invention, four fixing rods are fixed to the bottom of the device box, and the lower ends of the fixing rods are fixed to the upper end of the base plate.

[0015] The beneficial effects of this invention are: The screening mechanism inside the rotating trough, through the rotation of the rotating frame and the multiple screen plates and baffles evenly distributed on its side wall, achieves simultaneous material screening and circulating crushing. The screen plates allow materials that meet the particle size requirements to pass through and fall into the discharge hopper, while materials that do not meet the requirements are driven back to the crushing chamber by the baffles for secondary crushing. This dynamic screening and circulating treatment structure design ensures that all materials entering the pyrolysis furnace have uniform fineness, avoiding the clogging or incomplete classification problems caused by traditional static screening, and improving the uniformity and efficiency of the subsequent pyrolysis reaction.

[0016] In the drive mechanism, the electric motor simultaneously drives the grinding seat in the crushing mechanism and the rotating frame in the screening mechanism to rotate via a rotating shaft. Utilizing the meshing transmission of the first, second, and third gears, as well as the linkage structure between the linkage rod and the connecting ring, the energy from a single power source is distributed to two key functional modules. This simplifies the complexity of the power transmission system while ensuring the synchronous coordination of crushing and screening actions. This allows materials to immediately enter the screening stage after crushing, and materials that do not meet the standards can be quickly returned for reprocessing, forming a continuous and efficient pre-treatment process. At the same time, the innovative design of the linkage rod driving the connecting ring to reciprocate and thus driving the rotating frame to vibrate slightly further improves the screening effect, ensuring that materials pass through the screen plate efficiently.

[0017] The exhaust pipe installed on the pyrolysis furnace is not only used to discharge the flue gas generated during the pyrolysis process, but also, through linkage with the drying mechanism, converts the waste heat of the flue gas into the heat source required for material drying. By using heat exchange sleeves to absorb the heat of the flue gas in the exhaust pipe and transfer it to the air transported by the fan, the efficient recovery and utilization of waste heat is achieved, reducing the energy consumption of the drying process. At the same time, the dried material is easier to crush and pyrolyze, indirectly improving the efficiency of subsequent processing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a heat-insulating composite pipe processing and utilization device proposed in this invention; Figure 2 This is a schematic diagram of the feeding hopper, feeding pipe, and air outlet of a heat-insulating composite pipe processing and utilization device proposed in this invention. Figure 3 This is a schematic diagram of the device box, rotating trough, screening mechanism, crushing mechanism, and discharge hopper of the heat-insulating composite pipe processing and utilization device proposed in this invention; Figure 4 This is a schematic diagram of the screening mechanism of a heat-insulating composite pipe processing and utilization device proposed in this invention; Figure 5 This is a schematic diagram of the crushing mechanism, feeding mechanism, and driving mechanism of the heat-insulating composite pipe processing and utilization device proposed in this invention; Figure 6 This is a cross-sectional structural diagram of the screening mechanism, crushing mechanism, rotating shaft, sleeve rod, fourth gear, and fifth gear of the heat-insulating composite pipe processing and utilization device proposed in this invention. Figure 7 This is a schematic diagram of the rotating sleeve of the heat-insulating composite pipe processing and utilization device proposed in this invention; Figure 8 This is a schematic diagram of the sleeve, rectangular part, and concave ring part of the heat-insulating composite pipe processing and utilization device proposed in this invention; Figure 9 This is a schematic diagram of the second gear, connecting ring, and linkage rod of the heat-insulating composite pipe processing and utilization device proposed in this invention.

[0019] In the diagram: 1. Base plate, 2. Fixing rod, 3. Device box, 4. Box cover, 5. Feed hopper, 6. Fan, 7. Feed pipe, 8. Air guide pipe, 9. Discharge hopper, 10. Pyrolysis furnace, 11. Heat exchange sleeve, 12. Exhaust pipe, 13. Air inlet pipe, 14. Air outlet, 15. Rotating groove, 16. Rotating frame, 17. Crushing seat, 18. Arc plate, 19. Receiving hopper, 20. Screen plate, 21. Partition plate, 22. Rotating shaft, 23. Sleeve rod, 24. Fixing frame, 25. Motor, 26. First gear, 27. Second gear, 28. Third gear, 29. Rotating sleeve, 30. Grinding seat, 31. Grinding sleeve, 32. Device cavity, 33. Rotating column, 34. Fourth gear, 35. Fifth gear, 36. Crushing chamber, 37. Rectangular part, 38. Concave ring part, 39. Connecting ring, 40. Linkage rod. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] SeeFigures 1-9 A device for processing and utilizing thermal insulation composite pipes includes a base plate 1 and a pyrolysis furnace 10 mounted on the upper part of the base plate 1. The pyrolysis furnace 10 serves as the core processing unit for high-temperature pyrolysis of glass fiber plastic materials. The pyrolysis furnace 10 is equipped with an exhaust pipe 12 for discharging the flue gas generated during the pyrolysis process. Above the pyrolysis furnace 10 is a device box 3, which serves as the main site for pretreatment and crushing / screening, providing materials of suitable particle size for subsequent processing. Four fixing rods 2 are fixed to the bottom of the device box 3, with the lower ends of the fixing rods 2 fixed to the upper part of the base plate 1. A discharge hopper 9 is located at the bottom of the device box 3, connected to the input end of the pyrolysis furnace 10. The discharge hopper 9 guides the pretreated material from the device box 3 to the input end of the pyrolysis furnace 10. The device box 3 has a rotating groove 15 inside, and a box cover 4 is fixed to the outer wall of the device box 3. The cover 4 is used to seal the device box 3 to prevent materials from splashing out of the device box 3 during processing. The rotating trough 15 is equipped with a screening mechanism. The rotating trough 15 provides space for the rotation of the screening mechanism and restricts its rotation trajectory. The screening mechanism includes a rotating frame 16 rotatably set inside the rotating trough 15. Multiple screen plates 20 are fixedly embedded on the side wall of the rotating frame 16. The multiple screen plates 20 are evenly distributed along the circumference of the rotating frame 16. The screen plates 20 are used to screen the materials, so that the materials that meet the particle size requirements can pass through, while the materials that do not meet the requirements remain in the rotating frame 16. By rotating the rotating frame 16, the materials that do not meet the fineness requirements can be driven back into the crushing mechanism for crushing until the materials meet the required fineness. Multiple partitions 21 are fixed on the inner wall of the rotating frame 16. The multiple partitions 21 are evenly distributed along the circumference of the rotating frame 16. The partitions 21 are spaced apart from the screen plates 20.

[0022] The inner wall of the box cover 4 is equipped with a crushing mechanism located inside the screening mechanism. The crushing mechanism includes a crushing seat 17 disposed inside the rotating frame 16. The crushing seat 17 is fixed to the inner wall of the box cover 4. A receiving hopper 19 is fixed to the upper end of the crushing seat 17. The receiving hopper 19 is used to receive the material entering from the feeding mechanism and guide it to the crushing chamber 36. Arc-shaped plates 18 are fixed on the opposite side walls of the receiving hopper 19. The arc-shaped plates 18 fit against the inner side of the rotating frame 16 to prevent the material from slipping from the rotating frame 16 and the receiving hopper 19 during the process of entering the crushing chamber 36. Leakage occurs at the gap of 9. The upper end of the crushing seat 17 is provided with a crushing chamber 36, which is connected to the lower end of the crushing seat 17. The interior of the crushing seat 17 is provided with a device cavity 32 located below the crushing chamber 36. The interior of the crushing chamber 36 is provided with a grinding seat 30. A grinding sleeve 31 that cooperates with the grinding seat 30 is fixedly embedded on the inner wall of the crushing chamber 36. The grinding seat 30 rotates and cooperates with the grinding sleeve 31 to perform fine grinding and crushing of the material. A rotating column 33 is fixed at the lower end of the grinding seat 30. The lower end of the rotating column 33 penetrates the inner bottom wall of the crushing chamber 36 and is rotatably connected to the inner bottom wall of the device cavity 32.

[0023] The outer wall of the device box 3 is provided with a drive mechanism connected to the screening mechanism and the crushing mechanism. The drive mechanism includes a fixed frame 24 fixedly connected to the outer wall of the device box 3. A rotating sleeve 29 rotatably connected to the fixed frame 24 is provided through the side wall of the fixed frame 24 near the device box 3. A motor 25 is installed on the side wall of the fixed frame 24 away from the device box 3. A third gear 28 is fixedly sleeved on the outer wall of the rotating sleeve 29. A sleeve rod 23 is slidably inserted inside the rotating sleeve 29. The outer wall of the sleeve rod 23 is provided with a rectangular part 37 and a concave ring part 38. The rotating sleeve 29 is sleeved on the outside of the rectangular part 37. A connecting ring 39 is rotatably sleeved on the outside of the concave ring part 38. The sleeve rod 23 passes through the device box 3 and the rotating frame 16. The sleeve rod 23 is rotatably connected to the device box 3 and fixedly connected to the rotating frame 16. A rotating shaft 22 is inserted inside the sleeve rod 23. One end of the rotating shaft 22 passes through the crushing seat 17 and extends into the interior of the device cavity 32. A fifth gear 35 is fixed to the end of the rotating shaft 22 located in the device cavity 32. A fourth gear 34 is fixedly sleeved on the side wall of the rotating column 33. The fourth gear 34 meshes with the fifth gear 35. The other end of the rotating shaft 22 is fixedly connected to the output shaft of the motor 25. A first gear 26 is fixedly sleeved on the side wall of the rotating shaft 22. A second gear 27 is rotatably connected to the inner top wall of the fixing frame 24. A third gear 28 and a first gear 26 mesh on both sides of the second gear 27, respectively. A linkage rod 40 is rotatably connected to the lower edge of the second gear 27. The end of the linkage rod 40 away from the second gear 27 is rotatably connected to the side wall of the connecting ring 39. A feeding mechanism connected to the crushing mechanism is provided on the outer wall of the box cover 4, and a drying mechanism connected to the feeding mechanism is provided on the exhaust pipe 12.

[0024] The feeding mechanism includes a feeding hopper 5 fixedly connected to the outer wall of the box cover 4. The feeding hopper 5 serves as the inlet for material entry into the device, facilitating the feeding of fiberglass plastic material. A feeding pipe 7 is connected to the lower end of the feeding hopper 5, guiding the material in the feeding hopper 5 to the receiving hopper 19. A valve is installed on the feeding pipe 7. The end of the feeding pipe 7 away from the feeding hopper 5 passes through the box cover 4 and the receiving hopper 19. The inside of the feeding hopper 5 has a hollow air outlet chamber. Air outlet holes 14, communicating with the air outlet chamber, are evenly distributed on the inner bottom wall of the feeding hopper 5. The air outlet holes 14 are used to evenly blow hot air from the air outlet chamber onto the material, achieving material drying.

[0025] The drying mechanism includes a heat exchange sleeve 11 fitted on the outer wall of the exhaust pipe 12. The heat exchange sleeve 11 is used to absorb the heat of the flue gas in the exhaust pipe 12 and transfer the heat to the air flowing inside. The lower side wall of the heat exchange sleeve 11 is connected to an air inlet pipe 13. A fan 6 is installed on the outer wall of the feed hopper 5. The output end of the fan 6 is connected to the air outlet chamber. The input end of the fan 6 is connected to a guide pipe 8. The end of the guide pipe 8 away from the fan 6 is connected to the heat exchange sleeve 11. The guide pipe 8 is used to guide the heated air in the heat exchange sleeve 11 to the fan 6, and then the fan 6 delivers it to the air outlet chamber.

[0026] When using this invention, the glass fiber plastic material to be processed is first fed into the feeding hopper 5 in the feeding mechanism on the outer wall of the device box 3. Dry air is introduced from the heat exchange sleeve 11 on the outer wall of the exhaust pipe 12 by the blower 6 through the air guide pipe 8 connected to the input end. The heat exchange sleeve 11 absorbs the heat of the flue gas in the exhaust pipe 12 and transfers it to the air flowing inside. The heated air is delivered to the air outlet chamber through the output end of the blower 6, and then the dry air is blown evenly onto the material fed in through the air outlet 14 to achieve preliminary drying. Feed pipe 7 guides the material in feed hopper 5 to receiving hopper 19 in crushing mechanism. After entering receiving hopper 19, the material enters crushing chamber 36 and falls into crushing area between grinding seat 30 and grinding sleeve 31. Start motor 25 to drive rotating shaft 22 fixedly connected to its output shaft. The fifth gear 35 fixed at the end of rotating shaft 22 in device cavity 32 meshes with the fourth gear 34 fixedly sleeved on the side wall of rotating column 33, driving rotating column 33 and grinding seat 30 fixedly connected to it to rotate. By using grinding seat 30 and grinding sleeve 31 to cooperate, the material can be ground and crushed. The crushed material falls to the inside of rotating frame 16 and is screened by sieve plate 20. Material that meets the particle size requirements falls through the gap of sieve plate 20 and is guided to the input end of pyrolysis furnace 10 through discharge hopper 9 at the bottom of device box 3. Material that does not meet the fineness requirements is left in rotating frame 16. Furthermore, the rotating shaft 22 drives the first gear 26 to rotate, and the first gear 26 meshes with the second gear 27 for transmission. The second gear 27 simultaneously meshes with the third gear 28, and the third gear 28 drives the rotating sleeve 29 to rotate. The rotating sleeve 29 drives the sleeve rod 23 to rotate, and the sleeve rod 23 drives the rotating frame 16 to rotate in the rotating groove 15 provided inside the device box 3. When the second gear 28 rotates, it can drive the connecting ring 39 to reciprocate through the linkage rod 40, which in turn drives the sleeve rod 23 to reciprocate, and then the sleeve rod 23 drives the rotating frame 16 to reciprocate. The small vibration effect formed by the reciprocating movement of the rotating frame 16 can make the screen plate 2... The material on the 0 is screened more efficiently, improving the screening effect. At the same time, as the rotating frame 16 rotates, it is driven by the partition plate 21 to pass over the crushing chamber 36 again and enter the crushing area between the grinding seat 30 and the grinding sleeve 31 for cyclic crushing until the particle size of the material meets the screening requirements. The pyrolysis furnace 10 performs high-temperature pyrolysis treatment on the pre-treated and crushed and screened material. The flue gas generated during the pyrolysis process is discharged through the flue pipe 12. The heat exchange sleeve 11 on the flue pipe 12 continuously absorbs the heat of the flue gas and provides a drying heat source for the feeding mechanism, thereby completing the complete recycling process of glass fiber plastic material from feeding, drying, crushing, screening to pyrolysis.

[0027] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A kind of processing of heat preservation composite pipe and utilizes device, including bottom plate (1), pyrolysis furnace (10) being set on the upper end of bottom plate (1), the pyrolysis furnace (10) is equipped with flue (12), it is characterized in that, The pyrolysis furnace (10) is provided with a device box (3), the bottom of the device box (3) is provided with an outlet hopper (9), the outlet hopper (9) is connected with the input end of the pyrolysis furnace (10), the inside of the device box (3) is provided with a rotating groove (15), the outer wall of the device box (3) is fixedly provided with a box cover (4), the inside of the rotating groove (15) is provided with a screening mechanism, the inner side wall of the box cover (4) is provided with a crushing mechanism located in the inside of the screening mechanism, the outer wall of the device box (3) is provided with a driving mechanism connected with the screening mechanism and the crushing mechanism, the outer side wall of the box cover (4) is provided with a feeding mechanism connected with the crushing mechanism, and the smoke exhaust pipe (12) is provided with a drying mechanism connected with the feeding mechanism.

2. The heat-insulating composite pipe processing apparatus according to claim 1, wherein The screening mechanism comprises a rotating frame (16) rotatably arranged in the rotating groove (15), a plurality of sieve plates (20) are fixedly embedded on the side wall of the rotating frame (16), the plurality of sieve plates (20) are distributed at equal intervals along the circumference of the rotating frame (16), a plurality of partition plates (21) are fixed on the inner wall of the rotating frame (16), the plurality of partition plates (21) are distributed at equal intervals along the circumference of the rotating frame (16), and the partition plates (21) are arranged at intervals with the sieve plates (20).

3. The heat-insulating composite pipe processing apparatus according to claim 2, wherein The crushing mechanism comprises a crushing seat (17) arranged in the inside of the rotating frame (16), the crushing seat (17) is fixed on the inner wall of the box cover (4), the upper end of the crushing seat (17) is fixedly provided with a receiving hopper (19), the upper end of the crushing seat (17) is provided with a crushing cavity (36), the crushing cavity (36) is in communication with the lower end of the crushing seat (17), the inside of the crushing seat (17) is provided with a device cavity (32) located below the crushing cavity (36), the inside of the crushing cavity (36) is provided with a grinding seat (30), a grinding sleeve (31) matched with the grinding seat (30) is fixedly embedded on the inner wall of the crushing cavity (36), the lower end of the grinding seat (30) is fixedly provided with a rotating column (33), and the lower end of the rotating column (33) penetrates through the inner bottom wall of the crushing cavity (36) and is rotatably connected to the inner bottom wall of the device cavity (32).

4. The heat-insulating composite pipe processing apparatus according to claim 3, wherein The driving mechanism comprises a fixed frame (24) fixedly connected to the outer wall of the device box (3), a rotating sleeve (29) rotatably connected to the fixed frame (24) is provided through the side wall of the device box (3) close to the fixed frame (24), a motor (25) is installed on the side wall of the device box (3) away from the fixed frame (24), a third gear (28) is fixedly sleeved on the outer wall of the rotating sleeve (29), a sleeve rod (23) is slidably inserted into the rotating sleeve (29), a rectangular portion (37) and a concave ring portion (38) are arranged on the outer wall of the sleeve rod (23), the rotating sleeve (29) is sleeved on the outer side of the rectangular portion (37), a connecting ring (39) is rotatably sleeved on the outer side of the concave ring portion (38), the sleeve rod (23) penetrates through the device box (3) and the rotating frame (16), the sleeve rod (23) is rotatably connected to the device box (3), the sleeve rod (23) is fixedly connected to the rotating frame (16), a rotating shaft (22) is inserted into the sleeve rod (23), one end of the rotating shaft (22) penetrates through the crushing seat (17) and extends into the device cavity (32), a fifth gear (35) is fixedly arranged on the end of the rotating shaft (22) in the device cavity (32), a fourth gear (34) is fixedly sleeved on the side wall of the rotating column (33), the fourth gear (34) is engaged with the fifth gear (35), the other end of the rotating shaft (22) is fixedly connected to the output shaft of the motor (25), a first gear (26) is fixedly sleeved on the side wall of the rotating shaft (22), a second gear (27) is rotatably connected to the inner top wall of the fixed frame (24), the third gear (28) and the first gear (26) are respectively engaged on the two sides of the second gear (27), a linkage rod (40) is rotatably connected to the side wall of the connecting ring (39) away from the second gear (27).

5. The heat-insulating composite pipe processing apparatus according to claim 2, wherein The feeding mechanism comprises a feeding hopper (5) fixedly connected to the outer wall of the box cover (4), a feeding pipe (7) is connected to the lower end of the feeding hopper (5), one end of the feeding pipe (7) away from the feeding hopper (5) penetrates through the box cover (4) and the receiving hopper (19), the feeding hopper (5) is internally provided with a hollow air outlet cavity, air outlet holes (14) in communication with the air outlet cavity are uniformly arranged on the inner bottom wall of the feeding hopper (5).

6. The heat preservation composite pipe processing apparatus according to claim 1, wherein The drying mechanism comprises a heat exchange sleeve (11) sleeved on the outer side wall of the smoke exhaust pipe (12), an air inlet pipe (13) is connected to the lower side wall of the heat exchange sleeve (11), a fan (6) is installed on the outer wall of the feeding hopper (5), the output end of the fan (6) is in communication with the air outlet cavity, an air guide pipe (8) is connected to the input end of the fan (6), one end of the air guide pipe (8) away from the fan (6) is connected to the heat exchange sleeve (11).

7. The heat-insulating composite pipe processing apparatus according to claim 3, wherein Opposite side walls of the receiving hopper (19) are fixedly provided with arc-shaped plates (18), the arc-shaped plates (18) are attached to the inner side of the rotating frame (16).

8. The heat-insulating composite pipe processing apparatus according to claim 5, wherein A valve is arranged on the feeding pipe (7).

9. The heat preservation composite pipe processing apparatus according to claim 1, wherein The bottom of the device box (3) is fixed with four fixed rods (2), and the lower end of the fixed rod (2) is fixed on the upper end of the bottom plate (1).

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