Freezing, crushing and recycling device for new energy waste tires
By combining freeze crushing with cutting, extrusion and pulverization, the problem of dust and impurities in waste tire recycling equipment has been solved, achieving efficient and low-dust production of rubber powder, and improving the recycling efficiency of waste tires and the quality of rubber powder.
Patent Information
- Application Number
- CN202422280694.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-09-18
AI Technical Summary
Existing waste tire recycling equipment generates a large amount of dust during the crushing process, which is prone to clogging, resulting in a poor production environment, harming workers' health and affecting production efficiency. Furthermore, it is difficult to effectively remove impurities from tires, thus reducing the quality of rubber powder.
It adopts a cryogenic crushing method, combining cutting, extrusion, freezing and pulverizing processing components. Impurities are removed by liquid nitrogen cooling to reduce dust generation. The angle between the cutting blade and the rotating rod is designed to be 60° to 85°, and a ruler-shaped blade is used to avoid clogging.
It significantly reduces dust generation, improves the quality of adhesive powder, increases production efficiency, effectively removes impurity particles, avoids equipment blockage, and improves recycling efficiency.
Smart Images
Figure CN223532801U_ABST
Abstract
Description
Technical Field
[0001] This application relates to a new energy waste tire freezing and shredding recycling device, belonging to the field of tire shredding and recycling technology. Background Technology
[0002] With the rapid development of my country's automobile industry, the number of waste tires is also increasing. However, the recycling rate of waste tires has not kept pace with the development of the automobile industry. The large amount of waste tires has caused black pollution, which is more difficult to deal with than plastic pollution. On the other hand, it also wastes valuable rubber resources. If this "black pollution" is not dealt with as soon as possible, it will cause great harm to the environment.
[0003] To improve the utilization rate of waste tires, waste tire shredders are used to process them. These shredders are equipment used in the recycling of waste tires, requiring steps such as cutting into rings, strips, blocks, crushing, magnetic separation, grinding, and screening to completely recycle the tires. Waste tire recycling plays a vital role in resource recovery and environmental protection. In the process of turning tires into rubber powder, a shredder is used to tear the tire into narrow strips, which are then subjected to multiple crushing processes to form rubber powder. However, during long-term driving, friction between the tire and the ground causes the tire surface to accumulate a large amount of dirt, stones, and other impurities. These impurities are then mixed into the rubber powder during subsequent crushing, reducing its quality.
[0004] Furthermore, the existing crushing methods tend to generate dust, leading to a poor working environment, harming worker health, and posing safety hazards due to excessive dust. Existing crushing devices are also prone to clogging, causing machine downtime and impacting production efficiency. Therefore, it is necessary to provide a new energy waste tire recycling device that generates less dust, effectively removes impurities from tires, and is less prone to clogging. Utility Model Content
[0005] To address the aforementioned issues, this application proposes a new energy waste tire cryogenic crushing and recycling device. This device employs cryogenic crushing combined with segmented processing of each component, resulting in low dust generation and effective removal of impurities from tires, minimizing clogging and improving rubber powder production efficiency and product quality.
[0006] This application provides a new energy waste tire cryogenic crushing and recycling device, including:
[0007] The cutting processing unit has a cutting assembly inside, which includes a rotating rod and a cutting blade. A support plate is fixed to the outside of the cutting processing unit, and a first drive motor is fixed to the support plate. The first drive motor is connected to the rotating rod through a transmission part, and a plurality of cutting blades are fixed on the rotating rod.
[0008] The extrusion cleaning section has an inlet that communicates with the cutting processing section, and an extrusion component is provided inside the extrusion cleaning section. The bottom of the extrusion cleaning section has an outlet, and a storage box that can move parallel to the outlet is provided on the outlet. The top shell of the storage box has a through hole.
[0009] The refrigeration unit includes a refrigeration cavity and an outer cooling assembly. The cooling assembly is connected to the refrigeration cavity. The refrigeration unit is located at the bottom of the storage box and has an inlet and an outlet. A rotating door panel and a first electric push rod are provided on both the inlet and the outlet. The output end of the first electric push rod is hinged to a fixing member provided on the rotating door panel, and the fixed end of the first electric push rod is hinged to a fixing member provided on the inner wall of the new energy waste tire refrigeration and recycling device.
[0010] The pulverizing section is connected to the outlet at the bottom of the freezing section. The pulverizing section includes a pulverizing roller and a second drive motor. The shaft of the pulverizing roller rotates through the housing of the pulverizing section and is arranged in two sets opposite each other. Gears are provided on the shafts of the two sets of pulverizing rollers and mesh with each other. A support plate is provided on the side wall of the housing of the pulverizing section. The second drive motor is located on the support plate. The output end of the second drive motor rotates through the support plate and is connected to the shaft of the pulverizing roller.
[0011] Optionally, the extrusion component includes an extrusion roller and a third drive motor. The shaft of the extrusion roller rotates through the extrusion cleaning section housing and is arranged in two sets opposite each other. Gears are provided on the shafts of both sets of extrusion rollers and mesh with each other. A support plate is provided on the side wall of the extrusion cleaning section housing. The third drive motor is located on the support plate. The output end of the third drive motor rotates through the support plate and is connected to the shaft of the extrusion roller.
[0012] Optionally, there are two storage boxes arranged opposite each other. The bottom of each storage box is provided with a second electric push rod. The output end of the second electric push rod is fixedly connected to the connecting block provided at the bottom of the storage box. The fixed end of the second electric push rod is fixedly provided on the inner wall of the new energy waste tire freezing and crushing recycling device. The side wall of the storage box is provided with a particle outlet.
[0013] Optionally, the bottom of the internal cavity of the storage box is inclined.
[0014] Optionally, a sealing plug is provided at the particle outlet of the storage box.
[0015] Optionally, the cooling assembly includes a liquid nitrogen tank, the side wall of the refrigeration unit is provided with a retaining ring, the liquid nitrogen tank is disposed on the retaining ring, a connecting pipe is provided between the liquid nitrogen tank and the refrigeration cavity, and a valve is provided on the connecting pipe.
[0016] Optionally, an isolation housing is provided outside the transmission part in the cutting processing unit.
[0017] Optionally, the plane of the cutting blade makes an angle of 60° to 85° with the axial direction of the rotating rod.
[0018] Optionally, the plane of the cutting blade makes an angle of 80° to 85° with the axial direction of the rotating rod.
[0019] Optionally, the cutting blade is a ruler-shaped blade.
[0020] Optionally, the number of cutting components is two sets.
[0021] The beneficial effects that this application may produce include, but are not limited to:
[0022] 1. The new energy waste tire cryogenic crushing and recycling device provided in this application has an extrusion cleaning section after the cutting section, which can remove sand and gravel particles that are difficult to remove from the waste tire block. After being processed by the subsequent cryogenic treatment section, the block is cooled by liquid nitrogen before entering the crushing section for further processing. This can significantly reduce dust generation during the processing, and the crushing effect is good, resulting in better quality recycled rubber powder.
[0023] 2. The new energy waste tire freezing and crushing recycling device provided in this application has a cutting blade with an angle of 60° to 85° between the plane of the cutting blade and the axial direction of the rotating rod, and the cutting blade is a ruler-shaped blade. It has good cutting efficiency when cutting waste tire strips, and can also effectively reduce the problem of clogging of the cutting components.
[0024] 3. The new energy waste tire freezing and crushing recycling device provided in this application includes a cutting processing unit, an extrusion cleaning unit, a freezing processing unit and a crushing processing unit connected in sequence. It can complete the process of cutting, removing impurities, freezing and crushing waste tire strips after they have been cut into rings and strips, which greatly improves the recycling efficiency of waste tires. Attached Figure Description
[0025] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0026] Figure 1 This is a side cross-sectional schematic diagram of the new energy waste tire freezing, crushing and recycling device involved in the embodiments of this application;
[0027] Figure 2 This is a schematic diagram of the cutting blade in the new energy waste tire freezing and crushing recycling device involved in the embodiments of this application.
[0028] List of components and reference numerals:
[0029] 1-Cutting processing unit, 11-Rotating rod, 12-Cutting blade, 13-Support plate, 14-First drive motor, 15-Transmission unit, 16-Isolation housing;
[0030] 2-Extrusion cleaning section, 21-Miscellaneous waste box, 22-Through hole, 23-Extrusion roller, 24-Second electric push rod, 25-Connecting block, 26-Particle outlet, 27-Sealing plug;
[0031] 3-Cryogenic treatment section, 31-Cryogenic cavity, 32-Rotating door panel, 33-First electric push rod, 34-Fixed component, 35-Liquid nitrogen tank, 36-Connecting pipe, 37-Valve, 38-Snap ring;
[0032] 4-Grinding and processing section, 41-Grinding roller. Detailed Implementation
[0033] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.
[0034] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0035] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.
[0036] Furthermore, it should be understood in the description of this application that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0039] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.
[0040] refer to Figures 1-2 This application provides a new energy waste tire freezing and crushing recycling device, comprising:
[0041] The cutting processing unit 1 has a cutting assembly inside. The cutting assembly includes a rotating rod 11 and a cutting blade 12. A support plate 13 is fixed on the outside of the cutting processing unit 1. A first drive motor 14 is fixed on the support plate 13. The first drive motor 14 is connected to the rotating rod 11 through a transmission part 15. Several cutting blades 12 are fixed on the rotating rod 11.
[0042] The extrusion cleaning section 2 has an inlet that communicates with the cutting processing section 1, and the extrusion cleaning section 2 has an extrusion component inside. The bottom of the extrusion cleaning section 2 has an outlet, and a storage box 21 that can move in parallel is provided on the outlet. The top shell of the storage box 21 has a through hole 22.
[0043] The freezing processing unit 3 includes a freezing cavity 31 and an outer cooling assembly. The cooling assembly is connected to the freezing cavity 31. The freezing processing unit 3 is located at the bottom of the storage box 21 and has an inlet and an outlet. Both the inlet and outlet are equipped with a rotating door plate 32 and a first electric push rod 33. The output end of the first electric push rod 33 is hinged to the fixing member 34 provided on the rotating door plate 32, while the fixed end of the first electric push rod 33 is hinged to the fixing member 34 provided on the inner wall of the new energy waste tire freezing and crushing recycling device.
[0044] The pulverizing treatment unit 4 is connected to the outlet at the bottom of the freezing treatment unit 3. The pulverizing treatment unit 4 includes a pulverizing roller 41 and a second drive motor. The shaft of the pulverizing roller 41 rotates through the housing of the pulverizing treatment unit 4 and is arranged in two sets opposite each other. The shafts of the two sets of pulverizing rollers 41 are equipped with gears that mesh with each other. The side wall of the housing of the pulverizing treatment unit 4 is provided with a support plate. The second drive motor is located on the support plate. The output end of the second drive motor rotates through the support plate and is connected to the shaft of the pulverizing roller 41.
[0045] The new energy waste tire cryogenic crushing and recycling device provided in this application includes a cutting processing section 1, a compression cleaning section 2, a cryogenic processing section 3, and a crushing processing section 4 connected in sequence. After being cut into rings and strips, the waste tires enter the cutting processing section 1 and are cut into smaller blocks by the cutting blades 12. These blocks fall into the compression cleaning section 2, where the compression components fully deform them. Sand and other impurities in the blocks enter the storage box 21 through the top through-hole 22. The crushed blocks fall onto the top of the storage box 21. To prevent the blocks from affecting the entry of particulate impurities into the storage box 21, and to allow the blocks to accumulate to a certain amount, the storage box 21 moves horizontally to open the bottom outlet of the compression cleaning section 2. The first electric push rod 33 extends to open the rotating door 32 at the entrance of the cryogenic cavity 31, allowing the blocks to pass through. The material can fall into the freezing treatment unit 3. When the accumulated lumps in the freezing treatment unit 3 reach a certain quantity, the first electric push rod 33 retracts and drives the rotating door plate 32 at the entrance of the freezing cavity 31 to close. Then, the cooling component creates a freezing environment in the freezing cavity 31 and completes the freezing of the lumps. At this time, the tire waste lumps are very easy to crush and do not easily generate dust. After the first electric push rod 33 retracts, it can open the rotating door plate 32, so that the frozen lumps can fall directly onto the crushing rollers 41 with two sets of gears meshing in the crushing treatment unit 4 for crushing. The lumps are crushed after being processed by the crushing rollers 41. Since the particles have been removed beforehand, the impurity content in the crushed rubber powder is low, and the product quality is higher.
[0046] In one embodiment, the extrusion component includes an extrusion roller 23 and a third drive motor. The shaft of the extrusion roller 23 rotates through the extrusion cleaning section 2 housing and is arranged in two sets opposite each other. The shafts of both sets of extrusion rollers 23 are equipped with gears that mesh with each other. The side wall of the extrusion cleaning section 2 housing is provided with a support plate, and the third drive motor is mounted on the support plate. The output end of the third drive motor rotates through the support plate and is drivenly connected to the shaft of the extrusion roller 23. The third drive motor is fixed on the support plate, and its output end is drivenly connected to the shaft of the extrusion roller 23. When the third drive motor works, it can drive the extrusion roller 23 to rotate around its shaft. The shafts of both sets of extrusion rollers 23 are equipped with gears that mesh with each other. Therefore, after the block falls, it can deform under the action of the extrusion roller 23. Under the extrusion action, not only can the impurities on the surface of the block be removed, but some sand and gravel embedded inside can also be fully removed under the action of extrusion deformation. The sand and gravel enter the storage box 21 through the through hole 22 on the storage box 21 and are collected.
[0047] In one embodiment, there are two storage boxes 21 arranged opposite to each other. The bottom of the storage box 21 is provided with a second electric push rod 24. The output end of the second electric push rod 24 is fixedly connected to the connecting block 25 provided at the bottom of the storage box 21. The fixed end of the second electric push rod 24 is fixedly provided on the inner wall of the new energy waste tire freezing and crushing recycling device. The side wall of the storage box 21 is provided with a particle outlet 26. Two storage boxes 21 are positioned opposite each other at the bottom outlet of the compression cleaning section 2. When closed, they allow smaller sand and gravel particles that fall off after compression to enter the storage boxes 21 for collection. When the collected impurity particles accumulate to a certain amount, the two storage boxes 21 can be moved out by the action of the second electric push rod 24 to clean the impurity particles. In addition, when the two storage boxes 21 move away and open the bottom outlet of the compression cleaning section 2, the blocky material will also fall down to the freezing treatment section 3. When enough blocky material accumulates at the rotating door plate 32 at the entrance of the freezing treatment section 3, the first electric push rod 33 extends and opens the rotating door plate 32 at the entrance of the freezing treatment section 3, allowing the blocky material to fall into the freezing cavity 31.
[0048] It should be noted that the first electric push rod 33 installed on the rotating door panel 32 at the entrance of the freezing treatment unit 3 can extend even when a certain amount of blocky material accumulates. This is because the accumulation of blocky material does not affect the extension operation of the first electric push rod 33. Those skilled in the art can install components such as baffles in the device cavity as needed to block the blocky material and prevent the blocky material from frequently contacting the first electric push rod 33, thus reducing its lifespan, without affecting its normal function. Those skilled in the art can improve or implement the device based on conventional selection and the basic skills of technicians, according to other needs or to ensure the normal and efficient operation of the device.
[0049] As one implementation, the bottom of the internal cavity of the storage box 21 is inclined, which makes it convenient for the sand and gravel particles stored inside to gather on one side for easy collection and cleaning.
[0050] As one implementation, a sealing plug 27 is provided at the particle outlet 26 of the storage box 21. The bottom of the internal cavity of the storage box 21 is tilted so that the outside is at a lower position. At this time, the sand and gravel particles are easily scattered from the storage box 21 when they gather on the outside. The sealing plug 27 is used to block them, which can facilitate unified collection and processing.
[0051] In one embodiment, the cooling assembly includes a liquid nitrogen tank 35, a retaining ring 38 on the side wall of the freezing treatment section 3, the liquid nitrogen tank 35 being mounted on the retaining ring 38, and a connecting pipe 36 between the liquid nitrogen tank 35 and the freezing cavity 31, with a valve 37 mounted on the connecting pipe 36. In this application, the freezing assembly uses liquid nitrogen for cooling. When the amount of lumps accumulated in the freezing treatment section 3 reaches a certain level, the two storage boxes 21, under the action of the second electric push rod 24, move closer together to close the bottom outlet of the squeezing and cleaning section 2. The rotating door plates 32 at the inlet and outlet of the freezing treatment section 3 are also kept closed under the action of the first electric push rod 33, thereby maintaining a relatively sealed condition in the freezing cavity 31. Then, under the condition of introducing an appropriate amount of liquid nitrogen and maintaining a safe air pressure in the freezing cavity 31, the liquid nitrogen vaporizes and absorbs heat, thereby achieving the freezing treatment of the lumps. If a large amount of liquid nitrogen is introduced, and a large amount of block material is processed each time, those skilled in the art can also set up an air circulation device connected to the freezing cavity 31 as needed. Since the number of block material processed each time in this application is small and the amount of liquid nitrogen introduced is small, no air circulation device is set up, but the safe freezing treatment of waste tire block material can still be achieved.
[0052] In one embodiment, an isolation shell 16 is provided outside the transmission section 15 in the cutting processing unit 1. Since the waste tire strips input into the cutting processing unit 1 may contain dust, the isolation shell 16 effectively avoids problems such as jamming or poor transmission at the transmission section 15. In addition, other transmission structures, electric push rods, or drive motors in this application can also be protected with the isolation shell 16 as appropriate. Since the working conditions for waste tire recycling are relatively harsh, those skilled in the art can use conventional implementation methods as needed. Adding an isolation shell 16 for protection is a routine operation that can be implemented by those skilled in the art.
[0053] In one embodiment, the plane of the cutting blade 12 forms an angle of 60° to 85° with the axial direction of the rotating rod 11. The material fed into the cutting processing unit 1 is a strip of waste tire after it has been cut into rings or strips. Setting the above angle ensures that the cutting blade 12 can fully cut the strip, while avoiding the problem of the strip blocking the rotating rod 11 in the cutting assembly and making it difficult to rotate. This achieves both good cutting effect and prevents the strip from blocking the cutting assembly.
[0054] In one implementation, the cutting blade 12 is a ruler-shaped blade. The cutting assembly is used to cut waste tire strips into blocks. The ruler-shaped blade can cut the strips better and has a larger usable cutting length. Compared with blades with other complex structures, it is less likely to tear the strips and cause them to block the cutting assembly. Instead, it can directly and quickly cut the strips into blocks, ensuring cutting efficiency and reducing blockage.
[0055] In one implementation, the number of cutting components is two sets.
[0056] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.
[0057] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.
Claims
1. A new energy waste tire freezing, crushing, and recycling device, characterized in that, include: The cutting processing unit has a cutting assembly inside, which includes a rotating rod and a cutting blade. A support plate is fixed to the outside of the cutting processing unit, and a first drive motor is fixed to the support plate. The first drive motor is connected to the rotating rod through a transmission part, and a plurality of cutting blades are fixed on the rotating rod. The extrusion cleaning section has an inlet that communicates with the cutting processing section, and an extrusion component is provided inside the extrusion cleaning section. The bottom of the extrusion cleaning section has an outlet, and a storage box that can move parallel to the outlet is provided on the outlet. The top shell of the storage box has a through hole. The refrigeration unit includes a refrigeration cavity and an outer cooling assembly. The cooling assembly is connected to the refrigeration cavity. The refrigeration unit is located at the bottom of the storage box and has an inlet and an outlet. A rotating door panel and a first electric push rod are provided on both the inlet and the outlet. The output end of the first electric push rod is hinged to a fixing member provided on the rotating door panel, and the fixed end of the first electric push rod is hinged to a fixing member provided on the inner wall of the new energy waste tire refrigeration and recycling device. The pulverizing section is connected to the outlet at the bottom of the freezing section. The pulverizing section includes a pulverizing roller and a second drive motor. The shaft of the pulverizing roller rotates through the housing of the pulverizing section and is arranged in two sets opposite each other. Gears are provided on the shafts of the two sets of pulverizing rollers and mesh with each other. A support plate is provided on the side wall of the housing of the pulverizing section. The second drive motor is located on the support plate. The output end of the second drive motor rotates through the support plate and is connected to the shaft of the pulverizing roller.
2. The new energy waste tire freezing and pulverizing recycling device according to claim 1, characterized in that, The extrusion component includes an extrusion roller and a third drive motor. The shaft of the extrusion roller rotates through the extrusion cleaning section housing and is arranged in two sets opposite each other. Gears are provided on the shafts of both sets of extrusion rollers and mesh with each other. A support plate is provided on the side wall of the extrusion cleaning section housing. The third drive motor is located on the support plate. The output end of the third drive motor rotates through the support plate and is connected to the shaft of the extrusion roller.
3. The new energy waste tire freezing and pulverizing recycling device according to claim 1, characterized in that, The storage boxes are two in number and arranged opposite to each other. The bottom of the storage box is provided with a second electric push rod. The output end of the second electric push rod is fixedly connected to the connecting block provided at the bottom of the storage box. The fixed end of the second electric push rod is fixedly provided on the inner wall of the new energy waste tire freezing and crushing recycling device. The side wall of the storage box is provided with a particle outlet.
4. The new energy waste tire freezing and pulverizing recycling device according to claim 3, characterized in that, The bottom of the internal cavity of the storage box is inclined.
5. The new energy waste tire freezing and pulverizing recycling device according to claim 4, characterized in that, A sealing plug is provided at the particle outlet of the storage box.
6. The new energy waste tire freezing and pulverizing recycling device according to claim 1, characterized in that, The cooling assembly includes a liquid nitrogen tank. The side wall of the refrigeration unit is provided with a retaining ring, the liquid nitrogen tank is disposed on the retaining ring, and a connecting pipe is provided between the liquid nitrogen tank and the refrigeration cavity. A valve is provided on the connecting pipe.
7. The new energy waste tire freezing and crushing recycling device according to claim 1, characterized in that, An isolation shell is provided outside the transmission part in the cutting processing unit.
8. The new energy waste tire freezing and crushing recycling device according to claim 1, characterized in that, The plane of the cutting blade makes an angle of 60° to 85° with the axial direction of the rotating rod.
9. The new energy waste tire freezing and pulverizing recycling device according to claim 8, characterized in that, The cutting blade is a ruler-shaped blade.
10. The new energy waste tire freezing and pulverizing recycling device according to claim 1, characterized in that, The number of cutting components is two sets.