A pretreatment device for processing waste tires into rubber powder
By employing hollow crushing rollers and a cooling water circulation system in the crushing device, the problem of slow heat dissipation of rubber materials was solved, achieving efficient crushing and dust removal, and improving the quality and production efficiency of waste tire rubber powder.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HONGTAI (JINGMEN) NEW MATERIALS CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-05-26
AI Technical Summary
When existing crushing equipment processes waste tires, the high elasticity and low thermal conductivity of rubber materials make it difficult to dissipate the heat generated by the crushing rollers at high speeds. This causes rubber debris to stick to the roller surface, resulting in material blockage, reduced crushing efficiency, and impact on the quality of the rubber powder.
The device employs a hollow crushing roller and utilizes cooling components, a water storage tank, a rotary joint, a U-shaped tube, and a water pump to remove heat by allowing cooling water to flow within the hollow crushing roller. It also prevents material splashing and dust discharge through sealing and dust removal components, and uses a semiconductor cooling device and a negative pressure fan for dust removal.
It effectively avoids rubber adhesion, improves crushing efficiency, reduces material blockage and dust emissions, and enhances the physical properties and product quality of the rubber powder.
Smart Images
Figure CN224275801U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of recycled rubber powder pretreatment technology, and in particular to a processing pretreatment device for producing rubber powder from waste tires. Background Technology
[0002] Waste tires, as a typical polymer waste, have always been a global environmental challenge in their large-scale treatment. Traditional landfill or incineration methods not only occupy land resources and pollute the environment, but also waste rubber resources. Crushing waste tires into rubber powder is the core step in realizing their high-value utilization—rubber powder can be widely used in the production of recycled rubber products, asphalt-modified pavement paving, and waterproofing material preparation, which can alleviate the shortage of natural rubber resources and build a green circular industrial chain of "waste tire recycling - rubber powder processing - resource utilization," with significant environmental benefits and economic value.
[0003] In the pretreatment process of rubber powder processing, tires need to be crushed. Existing crushing devices mostly use metal rollers to squeeze and crush waste tires. However, the high elasticity and low thermal conductivity of rubber materials make it difficult to dissipate the heat generated by the crushing rollers when they are running at high speed. If the heat cannot be removed in time, on the one hand, the rubber fragments will soften and stick to the roller surface due to high temperature, causing material blockage, reduced crushing efficiency, and even equipment jamming. On the other hand, continuous high temperature will cause the rubber molecular chains to break and degrade, affecting the physical properties of the rubber powder and reducing product quality. Therefore, it is necessary to propose a pretreatment device for processing waste tires into rubber powder to address the above problems. Utility Model Content
[0004] One technical problem to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a pre-processing device for producing rubber powder from waste tires. It solves the problem that most crushing devices use metal rollers to crush waste tires, but the high elasticity and low thermal conductivity of rubber materials make it difficult to quickly dissipate the heat generated by the crushing rollers when they are running at high speed.
[0006] Two technical solutions
[0007] To achieve the above objectives, this utility model provides the following technical solution: a pre-treatment device for processing waste tires into rubber powder, comprising a crushing box, wherein two hollow crushing rollers are rotatably connected to the inner walls of both sides of the crushing box, and two guide plates are symmetrically installed inside the crushing box. The crushing box drives the two hollow crushing rollers to rotate in opposite directions via a drive mechanism. A hollow rotating shaft is fixed and connected to both ends of each hollow crushing roller, and a rotary joint is installed on the outer side of each hollow rotating shaft. A U-shaped... The crushing chamber is equipped with a water tank fixedly installed on the outside of the crushing chamber. A water pump is fixedly connected to the outside of the water tank. The outside of the water pump is connected to one of the U-shaped tubes through a water inlet pipe. The water tank is connected to the other U-shaped tube through a return pipe. A cooling component is installed on the outside of the water tank. A discharge port is opened on the top surface of the crushing chamber. A sealing component is installed on the top surface of the crushing chamber. A dust removal component is installed on the outside of the crushing chamber. A drawer is slidably connected inside the crushing chamber.
[0008] Preferably, the cooling assembly includes a heat-conducting plate, which is fixedly installed on the outside of the water storage tank, and a semiconductor cooling device is installed on the outside of the heat-conducting plate.
[0009] Preferably, the dust removal assembly includes a negative pressure fan, which is fixed and connected to the outside of the crushing box, and the installation height of the negative pressure fan is greater than the installation height of the hollow crushing roller. A dust removal water tank is fixedly installed on the outside of the crushing box, and an exhaust pipe is fixedly connected to the top surface of the dust removal water tank. The negative pressure fan is connected to the dust removal water tank through a dust removal pipe, and an air supply pipe is installed on the outside of the crushing box.
[0010] Preferably, the sealing assembly includes multiple electric telescopic rods, which are symmetrically installed on the top surface of the crushing box. A cover plate is installed on the top of the multiple electric telescopic rods, and a sealing seat is fixedly installed on the bottom surface of the cover plate, and the sealing seat is inserted into the feed inlet.
[0011] Preferably, the drive mechanism includes two driven gears, which are respectively mounted on the outside of two hollow rotating shafts located on the same side, and the two driven gears mesh with each other. A motor is mounted on the outside of the crushing box, and a drive gear is mounted on the outside of the output shaft of the motor, and the drive gear meshes with one of the driven gears.
[0012] Preferably, a protective shell is fixedly installed on the outside of the crushing box, and the motor is fixedly installed on the outside of the protective shell. The drive gear and each driven gear are located inside the protective shell, and multiple heat dissipation grooves are provided on both outer sides of the protective shell.
[0013] Three beneficial effects
[0014] Compared with the prior art, the present invention provides a technical solution with the following beneficial effects:
[0015] 1. This utility model uses a cooling component, a water storage tank, a rotary joint, a U-shaped tube, a water pump, and other devices to cool the water source in the water storage tank. The cooling water flows inside the two hollow crushing rollers, thereby driving the heat generated during the crushing process of the hollow crushing rollers. This effectively prevents the rubber from sticking to the hollow crushing rollers and avoids material blockage, thus improving the crushing effect.
[0016] 2. The sealing component, dust removal component, and other devices of this utility model can effectively seal the feed port through the sealing component, avoid material splashing during the crushing process, and reduce dust discharge from the feed port. In conjunction with the dust removal component, it can effectively remove dust generated during the crushing process. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the pretreatment device for producing rubber powder from waste tires, as proposed in this utility model.
[0018] Figure 2 This is a schematic diagram of the protective shell installation structure of a pretreatment device for producing rubber powder from waste tires, as proposed in this utility model.
[0019] Figure 3 This is a cross-sectional view of the crushing box of a pre-treatment device for producing rubber powder from waste tires, as proposed in this utility model.
[0020] Figure 4 This is a schematic diagram of the drive mechanism of a pretreatment device for producing rubber powder from waste tires, as proposed in this utility model.
[0021] Figure 5 for Figure 4 Enlarged view of point A.
[0022] In the diagram: 1. Crushing box; 2. Water tank; 3. Negative pressure fan; 4. Dust removal pipe; 5. Dust removal water tank; 6. Exhaust pipe; 7. Air supply pipe; 8. Drawer box; 9. Protective shell; 10. Heat dissipation groove; 11. Water pump; 12. Electric telescopic rod; 13. Cover plate; 14. Sealing seat; 15. Feed port; 16. Guide plate; 17. Hollow crushing roller; 18. Semiconductor refrigeration device; 19. Heat conduction plate; 20. Water inlet pipe; 21. Return pipe; 22. Hollow rotating shaft; 23. Rotary joint; 24. U-shaped tube; 25. Drive gear; 26. Motor; 27. Driven gear. Detailed Implementation
[0023] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0024] This utility model provides a technical solution:
[0025] Reference Figure 1-5 A pretreatment device for processing waste tires into rubber powder includes a crushing box 1. Two hollow crushing rollers 17 are rotatably connected to the inner walls of both sides of the crushing box 1. Two guide plates 16 are symmetrically installed inside the crushing box 1. The crushing box 1 drives the two hollow crushing rollers 17 to rotate in opposite directions through a drive mechanism. Both ends of each hollow crushing roller 17 are fixed and connected to a hollow rotating shaft 22. A rotary joint 23 is installed on the outside of each hollow rotating shaft 22. Every two rotary joints 23 located on the same side are connected to a U-shaped tube 24. Each U-shaped tube 24 is connected to the corresponding rotary joint 23. A water storage tank 2 is fixedly installed on the outside of the crushing box 1. A water pump 11 is fixedly installed on the outside of the water storage tank 2 and connected to it. The outside of the water pump 11 is connected to one of the U-shaped tubes 24 through a water inlet pipe 20. The water storage tank 2 is connected to the other U-shaped tube 24 through a return pipe 21. A refrigeration component is installed on the outside of the water storage tank 2.
[0026] The above components enable the cooling components to cool the water in the water tank 2, and the cooling water flows in the two hollow crushing rollers 17, thereby driving the heat generated during the crushing process of the hollow crushing rollers 17. This effectively prevents the rubber from sticking to the hollow crushing rollers 17, thus improving the crushing effect.
[0027] The crushing box 1 has a feeding port 15 on its top surface, a sealing component is installed on the top surface of the crushing box 1, a dust removal component is installed on the outside of the crushing box 1, and a drawer box 8 is slidably connected inside the crushing box 1, so that the user can take out the crushed tire rubber by sliding the drawer box 8.
[0028] Furthermore, the cooling component includes a heat-conducting plate 19, which is fixedly installed on the outside of the water storage tank 2. A semiconductor cooling device 18 is installed on the outside of the heat-conducting plate 19. The semiconductor cooling device 18 is located on the outside of the water storage tank 2, which facilitates heat dissipation. The heat-conducting plate 19 also facilitates heat transfer between the semiconductor cooling device 18 and the water source in the water storage tank 2, thereby cooling the water source in the water storage tank 2.
[0029] Furthermore, the dust removal assembly includes a negative pressure fan 3, which is fixed and connected to the outside of the crushing box 1. The installation height of the negative pressure fan 3 is greater than the installation height of the hollow crushing roller 17. A dust removal water tank 5 is fixedly installed on the outside of the crushing box 1. An exhaust pipe 6 is fixed and connected to the top surface of the dust removal water tank 5. The negative pressure fan 3 is connected to the dust removal water tank 5 through a dust removal pipe 4. An air supply pipe 7 is installed on the outside of the crushing box 1. The air supply pipe 7 can ensure the normal air pressure inside the crushing box 1. The dust removal water tank 5 is filled with water, and the height of the water source is greater than the installation height of the dust removal pipe 4.
[0030] Furthermore, the sealing assembly includes multiple electric telescopic rods 12, which are symmetrically installed on the top surface of the crushing box 1. A cover plate 13 is installed on the top of the multiple electric telescopic rods 12. A sealing seat 14 is fixedly installed on the bottom surface of the cover plate 13. The sealing seat 14 is inserted into the feed port 15 to effectively seal the feed port 15, prevent material from splashing during the crushing process, and reduce dust discharge from the feed port 15.
[0031] Furthermore, the drive mechanism includes two driven gears 27, which are respectively mounted on the outside of two hollow rotating shafts 22 located on the same side, and the two driven gears 27 mesh with each other. A motor 26 is mounted on the outside of the crushing box 1, and a drive gear 25 is mounted on the outside of the output shaft of the motor 26, and the drive gear 25 meshes with one of the driven gears 27.
[0032] Furthermore, a protective shell 9 is fixedly installed on the outside of the crushing box 1, and the motor 26 is fixedly installed on the outside of the protective shell 9. The drive gear 25 and each driven gear 27 are located inside the protective shell 9, and multiple heat dissipation slots 10 are provided on both sides of the protective shell 9.
[0033] In practical use, the working principle of this utility model is as follows:
[0034] In this utility model, when the device is used: First, the user can start the motor 26 and drive the two hollow crushing rollers 17 to rotate in opposite directions through the meshing of the drive gear 25 and the driven gear 27. After the waste tire is put in from the feeding port 15, it enters the gap between the hollow crushing rollers 17 under the guidance of the guide plate 16, is crushed into rubber powder and falls into the bottom drawer 8. The user can slide out the drawer 8 to collect the material.
[0035] During the crushing process, the cover plate 13 is driven by the electric telescopic rod 12, which drives the sealing seat 14 to be inserted into the feed port 15 to achieve the sealing of the crushing box 1, prevent dust from overflowing and reduce rubber splashing. At the same time, the negative pressure fan 3 is used to draw out the dust-containing air in the crushing box 1 and send it into the dust removal water tank 5 through the dust removal pipe 4. The dust is filtered by the water in the water tank, and the purified air is discharged from the exhaust pipe 6. The air replenishment pipe 7 maintains the air pressure balance in the box.
[0036] Furthermore, the semiconductor cooling device 18 cools the water in the water storage tank 2 through the heat conduction plate 19, and the water pump 11 pumps the cooling water into the U-shaped pipe 24 on one side through the water inlet pipe 20, and then into the hollow rotating shaft 22 and the hollow crushing roller 17 through the rotary joint 23. After absorbing the heat generated during the crushing process, the water flows back to the water storage tank 2 through the rotary joint 23 and the U-shaped pipe 24 on the other side and through the return pipe 21 to circulate and cool down, thus preventing the rubber from sticking to the roller surface due to high temperature and improving the crushing efficiency.
[0037] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.
Claims
1. A processing pretreatment device for making rubber powder from waste tires, comprising a pulverizing box (1), characterized in that, The inner walls of both sides of the crushing box (1) are rotatably connected to two hollow crushing rollers (17). Two guide plates (16) are symmetrically installed inside the crushing box (1). The crushing box (1) drives the two hollow crushing rollers (17) to rotate in opposite directions through a drive mechanism. Both ends of each hollow crushing roller (17) are fixed and connected to a hollow rotating shaft (22). A rotary joint (23) is installed on the outer side of each hollow rotating shaft (22). Every two rotary joints (23) located on the same side are connected to a U-shaped tube (24), and each U-shaped tube (24) is connected to the corresponding rotary joint (23). A water storage tank (2) is fixedly installed on the outside of the crushing box (1). A water pump (11) is fixedly connected to the outside of the water storage tank (2). The outside of the water pump (11) is connected to one of the U-shaped pipes (24) through the water inlet pipe (20). The water storage tank (2) is connected to another U-shaped pipe (24) through the return pipe (21). A refrigeration component is installed on the outside of the water storage tank (2). A discharge port (15) is opened on the top surface of the crushing box (1). A sealing component is installed on the top surface of the crushing box (1). A dust removal component is installed on the outside of the crushing box (1). A drawer box (8) is slidably connected inside the crushing box (1).
2. A processing and pre-treatment device for making rubber powder from waste tires according to claim 1, characterized in that, The cooling assembly includes a heat-conducting plate (19), which is fixedly installed on the outside of the water storage tank (2). A semiconductor cooling device (18) is installed on the outside of the heat-conducting plate (19).
3. A processing and pre-treatment device for making rubber powder from waste tires according to claim 2, characterized in that, The dust removal assembly includes a negative pressure fan (3), which is fixed and connected to the outside of the crushing box (1). The installation height of the negative pressure fan (3) is greater than the installation height of the hollow crushing roller (17). A dust removal water tank (5) is fixedly installed on the outside of the crushing box (1). An exhaust pipe (6) is fixed and connected to the top surface of the dust removal water tank (5). The negative pressure fan (3) is connected to the dust removal water tank (5) through a dust removal pipe (4). An air supply pipe (7) is installed on the outside of the crushing box (1).
4. The processing and pretreatment device for making rubber powder from waste tires according to claim 3, characterized in that, The sealing assembly includes multiple electric telescopic rods (12), and the multiple electric telescopic rods (12) are symmetrically installed on the top surface of the crushing box (1). The top of the multiple electric telescopic rods (12) is jointly installed with a cover plate (13). A sealing seat (14) is fixedly installed on the bottom surface of the cover plate (13), and the sealing seat (14) is sealed and inserted into the feed inlet (15).
5. The pretreatment device for processing waste tires into rubber powder according to claim 4, characterized in that, The drive mechanism includes two driven gears (27), which are respectively mounted on the outside of two hollow rotating shafts (22) located on the same side, and the two driven gears (27) mesh with each other. A motor (26) is mounted on the outside of the crushing box (1), and a drive gear (25) is mounted on the outside of the output shaft of the motor (26), and the drive gear (25) meshes with one of the driven gears (27).
6. The pretreatment device for processing waste tires into rubber powder according to claim 5, characterized in that, A protective shell (9) is fixedly installed on the outside of the crushing box (1), and the motor (26) is fixedly installed on the outside of the protective shell (9). The drive gear (25) and each driven gear (27) are located inside the protective shell (9). Multiple heat dissipation grooves (10) are opened on both sides of the protective shell (9).