Crushing and impurity removing device for rubber recovery

Abstract

The invention relates to the technical field of waste rubber recovery treatment, in particular to a crushing and impurity removing device for rubber recovery. The device comprises a conveying device used for conveying waste rubber materials in a stacking area into a crushing device, the crushing device divides and crushes the waste rubber materials into particles through a crushing cutter, a cleaning device used for receiving the waste rubber particles crushed by the crushing device and cleaning the waste rubber particles, and a soaking device is internally and circularly filled with soaking liquid. The device is used for removing rubber-containing impurities on waste rubber particles. The soaking device is additionally arranged between the crushing process and the cleaning process, and rubber-containing impurities on the surfaces of waste rubber particles and in inclusions are effectively softened and separated by circularly pouring a soaking solution, so that the subsequent cleaning difficulty can be reduced, the impurity removal rate is improved, and the purity and quality of recycled rubber are remarkably improved; waste rubber materials in a stacking area are efficiently and continuously fed into the crushing device, and automatic and assembly line work is achieved.

Description

Technical Field

[0001] This invention relates to the technical field of waste rubber recycling and processing, and in particular to a crushing and impurity removal device for rubber recycling. Background Technology

[0002] Rubber products are widely used in tires, gaskets, conveyor belts, sports field paving, and many other fields due to their excellent elasticity, wear resistance, and anti-aging properties. With the large-scale production and use of rubber products, the recycling and reuse of waste rubber has become increasingly prominent. Effective recycling of rubber materials not only helps in the recycling of resources but also reduces environmental pollution and achieves sustainable development. Waste rubber recycling usually includes various methods such as physical mechanical crushing, pyrolysis, and chemical treatment. Mechanical crushing recycling is widely used because of its simple process and low cost. Rubber particles obtained through crushing can be used as paving materials for public facilities such as sports fields, playgrounds, and running tracks, and have good elastic cushioning and anti-slip properties. High-quality recycled rubber products can also be used in road maintenance, building vibration reduction, and other fields.

[0003] With the diversification of rubber product design and the improvement of performance requirements, many rubber products often incorporate other reinforcing materials such as fibers, metals, and plastics during production, forming multi-layered composite structures. For example, tires often contain steel wires and cord fabrics, and some rubber mats contain plastic layers. During recycling, these heterogeneous materials are tightly bonded to the rubber, posing significant technical challenges to subsequent crushing and impurity separation. In multi-layered composite structures, the rubber and reinforcing materials are tightly bonded, making it difficult to completely separate impurities using conventional crushing methods, thus affecting the subsequent utilization value. To achieve effective impurity removal, existing technologies often require multiple processes such as multi-stage crushing, screening, magnetic separation, and air separation, resulting in high equipment investment and operating costs, low production efficiency, and incomplete impurity removal leading to residual metals, fibers, and other impurities in the recycled rubber particles, affecting the mechanical properties and safety of the reclaimed rubber and making it difficult to meet the application requirements of high-standard site paving and other applications.

[0004] Publication No. CN121268114A discloses a method for preparing rubber granules based on recycled tennis balls, an environmentally friendly running track construction method, and an environmentally friendly running track, including the following steps: Sa1, uniformly feeding the recycled tennis balls (after removing impurities) into a pulverizer, using the pulverizer to crush and separate the surface felt and rubber core; Sa2, disinfection and rinsing; Sa3, separating the fibers and rubber granules; Sa4, allowing the fibers and rubber granules to air dry naturally; Sa5, grading and screening; Sa6, classifying and sealing for storage. The prior art uses a pulverizer to separate the surface felt and rubber core, but this method is difficult to use for multi-layered composite materials bonded with industrial adhesives. Summary of the Invention

[0005] In order to solve the problem of the difficulty in separating and removing impurities in waste rubber and improve the quality of waste rubber recycling, this invention provides a crushing and impurity removal device for rubber recycling.

[0006] The present invention provides a crushing and impurity removal device for rubber recycling, which adopts the following technical solution: A rubber recycling crushing and impurity removal device includes: a conveying device connected to a stockpile area at its conveying end, used to convey waste rubber materials from the stockpile area to the crushing device, wherein the crushing device uses crushing blades to cut and crush the waste rubber materials into granules; and a cleaning device installed behind the crushing device, used to receive the crushed waste rubber granules and clean them; an soaking device is provided between the crushing device and the cleaning device, wherein a soaking solution is circulated in the soaking device to remove rubber-containing impurities from the waste rubber granules, and a cleaning solution is circulated in the cleaning device.

[0007] An immersion device is added between the crushing and washing processes. By circulating immersion solution, it effectively softens and separates rubber-containing impurities from the surface and inclusions of waste rubber granules. This reduces the difficulty of subsequent washing, improves the impurity removal rate, and significantly enhances the purity and quality of recycled rubber. Through automatic conveying, waste rubber materials from the stockpile area are efficiently and continuously fed into the crushing device, achieving automated, assembly-line operation. The crushing device can fully crush the waste rubber materials into granules. Combined with immersion and washing, it can effectively remove impurities such as metals, fibers, and plastics, ultimately obtaining high-purity rubber granules. This meets the high requirements for material performance and safety in applications such as site paving, expanding the application range of recycled rubber. Both the immersion and washing devices adopt a circulating immersion method, making full use of liquid resources, reducing water consumption and waste liquid discharge, and reducing environmental impact. This device can adapt to waste rubber products with multi-layered composite structures including metals, fibers, and plastics. It has strong compatibility and is widely applicable to the recycling and processing of various waste rubber products such as tires and rubber mats, expanding the application scenarios of the device.

[0008] Furthermore, the conveying device includes a feeding conveyor belt, the beginning of which is installed near the ground stockpiling area, and the end of which is connected to and faces the top of the casing. The casing is used to enclose the crushing device, the soaking device, and the washing device.

[0009] The conveying device adopts a combination design of feeding conveyor belt and feeding conveyor belt. The beginning of the feeding conveyor belt is set close to the ground stacking area to facilitate the stacking and automatic picking of waste rubber materials. The end is connected to the feeding conveyor belt facing the top of the machine casing, realizing efficient and continuous conveying of rubber materials, reducing manual handling and improving overall operation efficiency. The machine casing structure completely encloses the crushing device, soaking device and cleaning device, effectively preventing the leakage of pollutants such as noise, dust and waste liquid generated during rubber crushing, soaking and cleaning, and reducing the impact on the surrounding environment.

[0010] Furthermore, the feeding conveyor belt is horizontally arranged and its end is connected to the feed inlet at the top of the machine casing. The feed inlet is conical and its end is connected to a crushing device. A push roller is installed on the side wall of the feed inlet. The surface of the push roller is provided with friction protrusions. The push roller is driven and connected to a power device.

[0011] The feeding conveyor belt is horizontally positioned and its end is directly connected to the conical feed inlet at the top of the machine casing. This ensures that waste rubber materials are stably and continuously transported to the feed inlet, reducing material accumulation and blockage, and improving overall conveying efficiency. The conical feed inlet structure helps to directionally gather and evenly disperse the conveyed rubber materials, facilitating their entry into the crushing device and improving the uniformity of material entering the crushing device. It also effectively prevents large pieces of material from getting stuck. Push rollers are installed on the side wall of the feed inlet, and friction protrusions are set on the surface of the push rollers to enhance the gripping and pushing ability of the rubber materials. With the help of the power unit, the push rollers can continuously feed the rubber materials into the crushing device, effectively preventing material retention or slippage and improving feeding efficiency.

[0012] Furthermore, the crushing device includes a coarse shredder, and a fine shredder is connected and installed at the bottom discharge port of the coarse shredder. A vibrating screen is provided at the bottom discharge port of the fine shredder. Waste rubber materials are sequentially subjected to preliminary crushing by the coarse shredder, secondary crushing by the fine shredder, and qualified particle size screening by the vibrating screen.

[0013] The system employs a series arrangement of coarse and fine shredders. Waste rubber materials are first initially crushed by the coarse shredder, quickly cutting large pieces into medium-sized particles, reducing the load on subsequent processing. The fine shredder then performs secondary fine crushing, ensuring the rubber particles meet the predetermined particle size requirements. This tiered crushing mode significantly improves overall crushing efficiency and equipment operational stability. A vibrating screen is installed at the fine shredder outlet to screen the crushed rubber particles in real time, ensuring uniform particle size and compliance with process standards. Qualified particles can be directly fed into subsequent recycling or reprocessing stages, while substandard particles are returned to the fine shredder for re-crushing. Through the division of labor between the coarse and fine shredders, rapid pre-treatment of large materials and efficient shaping of small particles are achieved. This avoids excessive energy consumption and increased mechanical wear caused by processing the entire process with a single device, extending equipment lifespan and reducing maintenance costs. The entire crushing and screening process is highly automated; materials pass through coarse crushing, fine crushing, and screening sequentially without manual intervention, significantly improving work efficiency and production safety, and ensuring the continuity and stability of waste rubber processing.

[0014] Furthermore, the vibrating screen is connected to and equipped with a vibration device, and a feeding pusher is slidably installed on the vibrating screen. The feeding pusher moves cyclically between the feed inlet of the fine shredder and the vibrating screen. The feeding pusher is used to transport the rubber particles that are not qualified by the vibrating screen back to the feed inlet of the fine shredder for cyclic crushing. The feeding pusher is driven to move by a conveyor chain. A dust filter screen is provided at the discharge end of the vibrating screen, and a dust collection box is provided at the bottom of the dust filter screen.

[0015] By sliding a feeding pusher plate onto the vibrating screen and driving it to circulate between the feed inlet of the fine shredder and the vibrating screen using a conveyor chain, unqualified rubber particles from the screening process can be automatically transported back to the fine shredder for further crushing. This achieves automatic particle recycling, improves screening accuracy and rubber particle recovery rate. The coordinated work of the feeding pusher plate and the conveyor chain constructs an automated material return system, enhancing waste rubber processing efficiency and production safety. Through the vibrating screen and automatic return mechanism, unqualified particles can be continuously screened and recycled, ensuring that the final output rubber particles have a uniform and consistent particle size, effectively improving the quality of the finished product and meeting the process requirements for subsequent reuse or processing. A dust filter screen is installed at the discharge end of the vibrating screen, and a dust collection box is equipped at its bottom, which can effectively filter and collect fine rubber dust generated during production, reducing dust spillage and dust pollution.

[0016] Furthermore, the soaking device includes a soaking tank, in which a stirrer is installed. The top and bottom of the soaking tank are connected by a circulation pipe, and a first circulation pump is installed on the circulation pipe. The first circulation pump is used to transport the soaking liquid from the top of the soaking tank back to the bottom to form a circulating flow of the soaking liquid. The discharge port of the crushing device is connected to the circulation pipe in front of the first circulation pump. A filter plate is provided at the connection between the top of the soaking tank and the circulation pipe.

[0017] By installing a circulation pipe between the top and bottom of the soaking tank and a first circulation pump, the soaking solution is efficiently circulated within the tank. The circulation pump quickly transports the top soaking solution back to the bottom, forming an up-and-down circulation. This ensures that the rubber particles can fully contact the soaking solution, improving the soaking treatment effect. An agitator is installed inside the soaking tank to continuously stir the materials, preventing rubber particles from settling at the bottom or accumulating locally. This ensures that the particles and the soaking solution are fully mixed, improving the uniformity of soaking. The discharge port of the crushing device is directly connected to the circulation pipe in front of the first circulation pump, enabling the crushed rubber particles to be automatically transported to the soaking tank. A filter plate is installed at the connection between the top of the soaking tank and the circulation pipe, which can effectively filter rubber particles and other impurities, preventing large particles or impurities from entering the circulation pipe and the circulation pump, thus reducing the equipment failure rate.

[0018] Furthermore, the agitator is equipped with spiral blades for stirring the rubber particles and soaking liquid in the soaking tank. The filter plate is barrel-shaped, and the rubber particles and soaking liquid flow from the inside to the outside of the filter plate for filtration. A spiral conveyor is provided inside the filter plate, and the conveying end of the spiral conveyor is connected to a cleaning device. A feeding port is provided at the top of the circulation pipe in front of the first circulation pump, and the feeding port is connected to the discharge port of the crushing device. A first filter screen is provided inside the circulation pipe in front of the first circulation pump.

[0019] The spiral blades on the agitator efficiently stir the rubber particles and soaking liquid in the soaking tank, making the material distribution more uniform, preventing particle sedimentation or local accumulation, and promoting full contact between the rubber particles and the soaking liquid. This significantly improves the soaking effect and the efficiency of subsequent cleaning and separation. The barrel-shaped filter plate allows the rubber particles and soaking liquid to flow from the inside to the outside for filtration, expanding the filtration area, improving filtration efficiency, and effectively intercepting the rubber particles. A spiral conveyor is installed inside the filter plate, which can automatically transport the soaked and filtered rubber particles to the cleaning device, realizing automatic transfer and deep cleaning of the particles. A feeding port is set at the top of the circulation pipe in front of the first circulation pump and is connected to the discharge port of the crushing device. The crushed rubber particles can be directly put into the soaking tank for soaking treatment. A first filter screen is installed in the circulation pipe in front of the first circulation pump to further filter out fine impurities in the circulating liquid, preventing impurities from entering the pump body and subsequent equipment, and improving the reliability and stability of the soaking liquid circulation system.

[0020] Furthermore, the cleaning device includes a cleaning tank, in which a centrifuge is installed. The centrifuge is arranged to rotate around a central axis and is connected to a power device. The surface of the centrifuge has a mesh structure. The centrifuge is installed by a lifting bracket and slides up and down along the cleaning tank. The lifting bracket controls the centrifuge to be immersed in the cleaning liquid in the cleaning tank and to be lifted out of the cleaning liquid.

[0021] The cleaning device combines a cleaning tank with a centrifuge. Rubber particles are subjected to high-speed rotation within the centrifuge's mesh surface, allowing the cleaning solution to fully penetrate and flush the surface and gaps of the rubber particles. This effectively removes residual impurities and soaking solution, significantly improving the cleanliness of the particles and providing high-quality raw materials for subsequent recycling or processing. The centrifuge is installed via a lifting bracket and can slide up and down within the cleaning tank. The lifting bracket allows the centrifuge to be submerged in the cleaning solution for deep cleaning, or it can be lifted out of the cleaning solution for spin-drying or transfer, meeting the needs of different cleaning stages and achieving automated, phased cleaning and processing.

[0022] Furthermore, the centrifuge is equipped with a discharge plate that slides up and down along the centrifuge. The bottom and top of the cleaning tank are connected by a circulating water pipe, and a second circulating pump is installed on the circulating water pipe. The second circulating pump is used to transport the cleaning liquid from the bottom of the cleaning tank back to the top to form a circulating flow of the cleaning liquid. A second filter screen is installed in the circulating water pipe behind the second circulating pump.

[0023] The centrifuge is equipped with a sliding discharge plate that automatically discharges rubber particles from the centrifuge after cleaning and centrifugation, effectively simplifying the unloading process. The bottom and top of the cleaning tank are connected by a circulating water pipe and equipped with a second circulating pump, which allows the cleaning solution to be transported from the bottom to the top of the tank, forming a reflux circulation. The continuously flowing cleaning solution can continuously remove impurities from the surface of the rubber particles, maintaining the cleanliness of the cleaning solution, preventing the accumulation of contaminants, extending the service life of the cleaning solution, and reducing water consumption. A second filter screen is installed in the circulating water pipe behind the second circulating pump, which can effectively intercept and filter solid impurities and fine particles generated during the cleaning process, ensuring the cleanliness of the returned cleaning solution and extending the equipment maintenance cycle.

[0024] Furthermore, the discharge port at the end of the cleaning device is connected to a collection device, which is used to collect and store the cleaned waste rubber particles. The collection device includes a collection tank, which is connected to and equipped with a dryer.

[0025] The cleaning device is equipped with a dedicated discharge port at the end, which is connected to a collection device. This allows for the timely and effective collection of cleaned waste rubber particles into the collection tank, enabling automated collection and centralized management of the rubber particles. This facilitates subsequent processing and transportation. The collection tank is equipped with a dryer, which can quickly dry the cleaned rubber particles, removing residual moisture from the surface, which is beneficial for subsequent storage, transportation, and reprocessing.

[0026] In summary, the present invention has the following beneficial technical effects: 1. The automatic and continuous conveying of waste rubber materials from the stockpile area to the crushing device is achieved through the conveying device, which significantly improves the efficiency of operation, reduces manual handling and material handling, and meets the needs of large-scale rubber recycling and processing.

[0027] 2. The coarse shredder and fine shredder are connected in series. Large pieces of rubber material are first coarsely crushed and then finely crushed. With the help of vibrating screen for grading and screening, the rubber particles are made of uniform size, which improves the quality of finished products and meets the requirements of recycling process.

[0028] 3. The feeding pusher plate and the vibrating screen work together to automatically return unqualified particles to the fine shredder for recycling and crushing without manual intervention, effectively improving the rubber particle recovery rate and screening accuracy.

[0029] 4. The soaking device and the cleaning device are connected in series. The soaking solution and the cleaning solution are circulated and injected to soften and separate the rubber-containing impurities and rinse the surface of the particles. This effectively removes various impurities such as metal, fiber, and plastic, and significantly improves the purity and quality of the rubber particles.

[0030] 5. Both the soaking tank and the cleaning tank are designed with circulating pumps and filters, so that the soaking solution and cleaning solution can be recycled efficiently, reducing water consumption and waste discharge, saving resources and reducing the environmental burden.

[0031] 6. The agitator in the soaking tank is equipped with spiral blades to prevent particle sedimentation and improve soaking uniformity. The filter plates and filter screens provide multi-stage filtration to ensure liquid cleanliness and reduce equipment failure.

[0032] 7. The centrifuge is equipped with a sliding discharge plate, which can automatically discharge rubber particles after cleaning, simplifying the unloading process, improving the level of automation, and adapting to assembly line production.

[0033] 8. The casing structure completely encloses the core processing unit, effectively preventing noise, dust, and waste liquid leakage during breakage, soaking, and cleaning processes, thus maintaining the hygiene and safety of the surrounding environment.

[0034] 9. The discharge port at the end of the cleaning device is connected to the collection tank and the dryer. The cleaned rubber granules can be dried quickly, reducing the moisture content and facilitating storage, transportation and subsequent recycling.

[0035] 10. The overall device can adapt to waste rubber products with multi-layered structures containing metal, fiber, plastic and other materials. It is widely applicable to the recycling and processing of various waste rubber products such as tires and rubber mats, which greatly expands the application field and market value of the device. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the external mounting structure of the present invention; Figure 2 for Figure 1 Another perspective structural diagram; Figure 3 This is a schematic diagram of the internal structure and connection structure of the present invention; Figure 4 This is a schematic diagram of the crushing device of the present invention; Figure 5 This is a schematic diagram of the external installation structure of the soaking device of the present invention; Figure 6 This is a schematic diagram of the internal installation structure of the soaking device of the present invention; Figure 7 This is a schematic diagram of the external installation structure of the cleaning device of the present invention; Figure 8 This is a schematic diagram of the internal installation structure of the cleaning device of the present invention; Figure 9 This is a schematic diagram of the collection device of the present invention.

[0037] Explanation of reference numerals in the attached figures: 10. Machine casing; 1. Feeding conveyor belt; 11. Feeding conveyor belt; 111. Feed inlet; 112. Push roller; 2. Coarse shredder; 21. Fine shredder; 22. Vibrating screen; 221. Feeding push plate; 222. Conveyor chain; 23. Dust filter screen; 231. Dust collection box; 3. Soaking tank; 31. Agitator; 311. Spiral blades; 32. Filter plate; 321. Spiral conveyor; 33. First circulating pump; 331. Feed inlet; 332. First filter screen; 4. Washing tank; 41. Centrifuge; 411. Lifting support; 412. Discharge plate; 42. Second circulating pump; 421. Second filter screen; 5. Collection tank; 51. Dryer. Detailed Implementation

[0038] The following will be combined with the appendix Figures 1-9 The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0039] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0040] Example 1: This invention discloses a crushing and impurity removal device for rubber recycling, referring to... Figure 1-3 ,include: A conveying device, the conveying end of which is connected to a stockpiling area, is used to convey waste rubber materials from the stockpiling area to a crushing device, wherein the crushing device uses crushing blades to divide and crush the waste rubber materials into granules. A cleaning device is installed behind the crushing device to receive and clean the waste rubber particles after they have been crushed by the crushing device. An immersion device is provided between the crushing device and the cleaning device. The immersion device is filled with immersion liquid to remove rubber-containing impurities from the waste rubber particles. The cleaning device is filled with cleaning liquid.

[0041] The conveying device includes a conveyor belt, one end of which is connected to the stockpiling area and the other end to the feed inlet of the crushing device. The speed of the conveyor belt is adjustable to control the feeding speed of the waste rubber material and ensure that it matches the processing capacity of the crushing device.

[0042] The crushing device includes multiple high-speed rotating crushing blades for crushing waste rubber materials into granules. The crushing blades are made of cemented carbide, which is wear-resistant and durable. The crushing device is equipped with a vibrating screen to help separate particles of the appropriate size.

[0043] The soaking device is equipped with a soaking tank in which a soaking solution is circulated. The soaking solution consists of water, surfactants, and chemical reagents for removing colloidal impurities. The soaking time can be adjusted via a control panel to ensure that impurities are fully removed.

[0044] The cleaning device includes a multi-stage spray system that circulates cleaning fluid, which consists of water and a neutral detergent to ensure the cleanliness of the rubber particles. It is also equipped with a drainage system to promptly remove waste liquid.

[0045] Operators place waste rubber materials in the stacking area of ​​the conveyor device, start the conveyor, and the material enters the crushing device via the conveyor belt. The crushing device starts, and the blades rotate at high speed to crush the rubber material into granules. The crushed granules are screened by a vibrating screen, and granules of suitable size enter the soaking device. The granules are soaked in the soaking tank, and the soaking liquid circulates to remove surface impurities. The soaking time and liquid composition are adjusted according to the properties of the rubber material. The granules enter the cleaning device, the spray system is started, and the circulating cleaning liquid cleans the granules. The cleaned granules are discharged through the drainage system, ready for subsequent processing or packaging.

[0046] Example 2: Based on Example 1, the following is added: Reference Figure 1 and Figure 2 The conveying device includes a feeding conveyor belt 1, the feeding conveyor belt 1 is installed at the beginning of the conveying process near the ground stockpiling area, and the feeding conveyor belt 11 is connected to and faces the top of the housing 10 at the end of the conveying process. The housing 10 is used to enclose the crushing device, the soaking device and the washing device.

[0047] Reference Figure 1 The feeding conveyor belt 1 is horizontally arranged and its end is connected to the feed inlet 111 at the top of the housing 10. The feed inlet 111 is conical and its end is connected to a crushing device. A pusher roller 112 is installed on the side wall of the feed inlet 111. The surface of the pusher roller 112 is provided with friction protrusions. The pusher roller 112 is connected to a power device for transmission.

[0048] The feeding conveyor belt 1 is set horizontally, with its starting end close to the material stacking area on the ground for initial feeding, and its end connected to the feed port 111 on the top of the casing 10, which conveys rubber material to the crushing device.

[0049] The feed inlet 111 is tapered to facilitate the smooth entry of materials into the crushing device. The tapered structure helps to concentrate the rubber material and reduce clogging. A push roller 112 is installed on the side wall of the feed inlet 111. The surface of the push roller is provided with friction protrusions to ensure stable material propulsion. The push roller 112 is connected to the power system through a transmission device, which can apply appropriate thrust to the rubber material. The friction protrusion design increases the friction between the roller and the material, ensuring efficient pushing. At the same time, when the rubber is clogged, the blockage is cleared by reversing the direction of rotation.

[0050] The feeding conveyor belt 11 is connected to the top of the casing 10 and is responsible for conveying the material from the feeding conveyor belt 1 to the crushing device at a uniform speed and in a controlled manner.

[0051] The housing 10 encloses and protects the various functional devices, including the crushing device, soaking device, and cleaning device, providing structural support and safety assurance.

[0052] The operator places the waste rubber material in the stacking area of ​​the feeding conveyor belt 1, starts the conveying device, and the material enters the feed port 111 of the machine casing 10 through the feeding conveyor belt 1 and the feeding conveyor belt 11. The push roller 112 is started and rotates through the power device. The friction protrusions contact the rubber material and push the material into the crushing device. The design of the push roller ensures that the material enters smoothly without jamming.

[0053] The speed of the feeding conveyor belt is adjustable from 0.1 to 0.2 m / s to accommodate different processing volumes.

[0054] The push roller speed is usually set to 30-50 RPM to ensure smooth material delivery.

[0055] The feed inlet has a tapered angle of 111 degrees, typically 30-45 degrees, to optimize material flow.

[0056] Example 3: Based on Example 1, the following is added: Reference Figure 3 and Figure 4 The crushing device includes a coarse shredder 2, and a fine shredder 21 is connected and installed at the bottom discharge port of the coarse shredder 2. A vibrating screen 22 is provided at the bottom discharge port of the fine shredder 21. Waste rubber materials are sequentially subjected to preliminary crushing by the coarse shredder 2, secondary crushing by the fine shredder 21, and qualified particle size screening by the vibrating screen 22.

[0057] Reference Figure 3 and Figure 4 The vibrating screen 22 is connected to and equipped with a vibration device. A feeding pusher plate 221 is slidably installed on the vibrating screen 22. The feeding pusher plate 221 moves cyclically between the feed inlet of the fine shredder 21 and the vibrating screen 22. The feeding pusher plate 221 is used to transport the unqualified rubber particles screened by the vibrating screen 22 back to the feed inlet of the fine shredder 21 for cyclic crushing. The feeding pusher plate 221 is driven to move by the conveyor chain 222. A dust filter screen 23 is provided at the discharge end of the vibrating screen 22. A dust collection box 231 is provided at the bottom of the dust filter screen 23.

[0058] The coarse shredder 2 is responsible for the initial crushing of waste rubber materials. It is designed with a large blade gap to handle larger rubber blocks. The discharge port is connected to the fine shredder 21 to ensure that the material after initial crushing can smoothly enter the next stage. The fine shredder 21 further crushes the rubber material in a secondary manner, using a fine blade gap to ensure particle refinement. The bottom discharge port is connected to a vibrating screen 22 to ensure that the crushed particles enter the screening stage. The vibrating screen 22 achieves dynamic screening of particles through a vibration device to ensure that particles of qualified size pass through. The screen is designed with different apertures to adapt to different crushing precision requirements.

[0059] The feeding pusher plate 221 is slidably installed on the vibrating screen 22. Driven by the conveyor chain 222, it circulates between the feed inlet of the fine shredder 21 and the vibrating screen 22. It is used to transport the unqualified rubber particles screened out back to the fine shredder 21 for cyclic crushing, thereby improving the crushing efficiency.

[0060] The dust filter screen 23 is set at the material discharge end of the vibrating screen 22 to further remove fine dust. The dust collection box 231 is used to collect the dust filtered out by the dust filter screen 23, keep the subsequent working environment clean, and reduce filter clogging.

[0061] Rubber material enters the coarse shredder 2 for initial crushing. The coarse shredder 2 is designed to ensure the effective processing of large pieces of rubber. The coarsely crushed material enters the fine shredder 21 for further refinement into smaller particles. The finely crushed particles enter the vibrating screen 22 for screening by the vibration device. Qualified particles pass through the screen, while unqualified particles are returned to the fine shredder 21 through the feeding pusher plate 221 for cyclic crushing.

[0062] Qualified particles pass through the dust filter screen 23 to further remove dust, and the dust is collected in the dust collection box 231.

[0063] The blade gap of the coarse shredder is set to 10-20mm to accommodate large pieces of rubber, while the blade gap of the fine shredder is set to 3-5mm to ensure fine particle size. The mesh size of the vibrating screen is selected according to the requirements of the rubber particles, usually 2-5mm.

[0064] Example 4: Based on Example 1, the following is added: Reference Figure 5 and Figure 6 The soaking device includes a soaking tank 3, in which a stirrer 31 is installed. The top and bottom of the soaking tank 3 are connected by a circulation pipe, and a first circulation pump 33 is installed on the circulation pipe. The first circulation pump 33 is used to transport the soaking liquid from the top of the soaking tank 3 back to the bottom to form a circulating flow of the soaking liquid. The discharge port of the crushing device is connected to the circulation pipe in front of the first circulation pump 33. A filter plate 32 is provided at the connection between the top of the soaking tank 3 and the circulation pipe.

[0065] Reference Figure 5 and Figure 6The agitator 31 is equipped with spiral blades 311, which are used to stir the rubber particles and soaking liquid in the soaking tank 3. The filter plate 32 is barrel-shaped and the rubber particles and soaking liquid flow from the inside to the outside of the filter plate 32 for filtration. A spiral conveyor 321 is provided on the inside of the filter plate 32. The conveying end of the spiral conveyor 321 is connected to a cleaning device. A feeding port 331 is provided at the top of the circulation pipe in front of the first circulation pump 33. The feeding port 331 is connected to the discharge port of the crushing device. A first filter screen 332 is provided in the circulation pipe in front of the first circulation pump 33.

[0066] The soaking tank 3 is used to hold rubber granules and soaking liquid. The top and bottom are connected by a circulation pipe to ensure the circulation of the soaking liquid. The agitator 31 is installed in the soaking tank 3 to agitate the rubber granules and soaking liquid. The agitator 31 is equipped with spiral blades 311, which achieve effective agitation by rotation.

[0067] The circulation pipe is used to connect the top and bottom of the soaking tank 3 to realize the circulation of liquid. The first circulation pump 33 is installed on the circulation pipe and is responsible for transporting the soaking liquid from the top to the bottom to form a circulation flow.

[0068] The filter plate 32 is barrel-shaped and is located at the top of the soaking tank 3 where it connects to the circulation pipe. Rubber particles and soaking liquid flow from the inside to the outside for filtration. A screw conveyor 321 is installed inside the filter plate 32 to transport the filtered rubber particles to the cleaning device.

[0069] The feeding port 331 is connected to the discharge port of the crushing device and is used to input the crushed rubber particles into the circulation pipe. The circulation pipe is equipped with a first filter screen 332 to further filter impurities in the soaking solution.

[0070] The crushed rubber particles are fed into the circulation pipe through the feed port 331 from the discharge port of the crushing device. The rubber particles enter the soaking tank 3 and come into full contact with the soaking liquid. The agitator 31 stirs the material in the soaking tank through the spiral blades 311 to ensure uniform soaking. After the first circulation pump 33 is started, the soaking liquid is transported from the top of the soaking tank 3 back to the bottom. The liquid is circulated through the circulation pipe. The soaking liquid and rubber particles are filtered through the filter plate 32. The filtered particles are transported to the cleaning device for further processing through the screw conveyor 321.

[0071] The first filter screen 332 in the circulation pipe further removes impurities from the soaking solution, keeping the soaking solution clean.

[0072] Example 5: Based on Example 1, the following is added: Reference Figure 7 and Figure 8The cleaning device includes a cleaning tank 4, in which a centrifuge 41 is installed. The centrifuge 41 is arranged to rotate around a central axis and is connected to a power device. The surface of the centrifuge 41 is a mesh structure. The centrifuge 41 is installed by a lifting bracket 411 and slides up and down along the cleaning tank 4. The lifting bracket 411 controls the centrifuge 41 to be immersed in the cleaning liquid in the cleaning tank 4 and to be lifted out of the cleaning liquid.

[0073] Reference Figure 7 and Figure 8 The centrifuge 41 is provided with a discharge plate 412, which slides up and down along the centrifuge 41. The bottom and top of the cleaning tank 4 are connected by a circulating water pipe, and a second circulating pump 42 is installed on the circulating water pipe. The second circulating pump 42 is used to transport the cleaning liquid from the bottom of the cleaning tank 4 back to the top to form a circulating flow of the cleaning liquid. A second filter screen 421 is provided in the circulating water pipe behind the second circulating pump 42.

[0074] The cleaning tank 4 is used to hold the cleaning fluid and provide a cleaning environment for the rubber particles. The bottom and top are connected by a circulating water pipe to realize the circulation of the cleaning fluid.

[0075] The centrifuge 41 is arranged to rotate around the central axis and is connected to a power unit to provide rotational power. Its surface has a mesh structure, which helps the cleaning liquid to penetrate and the particles to be cleaned. It is installed by a lifting bracket 411 and can slide up and down in the cleaning tank 4. The lifting bracket 411 is used to control the immersion and lifting of the centrifuge 41, and to control the centrifuge to be cleaned in the cleaning liquid or to leave the cleaning liquid.

[0076] The discharge plate 412 is installed inside the centrifuge 41 and can slide up and down with the centrifuge. The discharge plate 412 is used to discharge the cleaned rubber particles from the centrifuge.

[0077] The circulating water pipe connects the bottom and top of the cleaning tank 4 to ensure the circulation of the cleaning liquid. The second circulating pump 42 is used to transport the cleaning liquid from the bottom to the top of the cleaning tank to form a circulating flow of the cleaning liquid. The second filter screen 421 is installed inside the circulating water pipe to filter impurities in the cleaning liquid and keep the cleaning liquid clean.

[0078] Centrifuge 41 is immersed in the cleaning liquid in cleaning tank 4 via lifting bracket 411. The power unit drives centrifuge 41 to rotate, so that the rubber particles can fully contact the cleaning liquid under the action of centrifugal force to remove impurities from the particle surface.

[0079] After the second circulation pump 42 starts, it transports the cleaning fluid from the bottom of the cleaning tank 4 back to the top, and realizes the circulation of the cleaning fluid through the circulation water pipe. The second filter screen 421 in the circulation water pipe removes impurities in the cleaning fluid and keeps the liquid clean.

[0080] After cleaning, the lifting bracket 411 lifts the centrifuge 41 away from the cleaning solution, and the unloading plate 412 unloads the cleaned rubber particles for further processing or use.

[0081] Example 6: Based on Examples 1-5, the following additions were made: Reference Figure 2 and Figure 9 The end outlet of the cleaning device is connected to a collection device, which is used to collect and store the cleaned waste rubber particles. The collection device includes a collection tank 5, which is connected to and equipped with a dryer 51.

[0082] The collection tank 5 is used to collect and store the cleaned waste rubber granules. It is connected to the discharge port at the end of the cleaning device to ensure that the cleaned granules can smoothly enter the collection tank 5. The dryer 51 is installed in the collection tank 5 and is responsible for drying the collected rubber granules to remove residual moisture. The dryer 51 achieves rapid drying of the granules through hot air circulation or other heating methods.

[0083] The discharge port at the end of the cleaning device is connected to the collection tank 5. The cleaned rubber particles enter the collection tank through the discharge port. The rubber particles in the collection tank 5 are dried by the dryer 51. After the dryer is started, hot air or heating elements are used to heat the particles to reduce their moisture content.

[0084] The dried rubber granules are stored in collection tank 5 for further processing or use.

[0085] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the scope defined by the structure of the invention, and all such modifications and additions should fall within the protection scope of the present invention.

Claims

1. A rubber recycling crushing and impurity removing device, comprising: a conveying device, the conveying device is connected with a stacking area at the end, used for conveying the waste rubber materials in the stacking area to a crushing device, the waste rubber materials are broken into particles by a crushing cutter; a cleaning device, the cleaning device is installed behind the crushing device, used for receiving the waste rubber particles broken by the crushing device and performing cleaning treatment; characterized in that a soaking device is arranged between the crushing device and the cleaning device, the soaking device circulates and fills with soaking liquid, used for removing the rubber-containing impurities on the waste rubber particles, and the cleaning device circulates and fills with cleaning liquid.

2. The rubber recycling crushing and impurity removing device according to claim 1, characterized in that: The conveying device comprises a feeding conveying belt (1), the feeding conveying belt (1) is installed close to the ground stacking area at the beginning of conveying, and the end of conveying is connected with a feeding conveying belt (11) towards the top of a machine shell (10), the machine shell (10) is used for wrapping the crushing device, the soaking device and the cleaning device.

3. The rubber recycling crushing and impurity removing device according to claim 2, characterized in that: The feeding conveying belt (1) is horizontally arranged and connected with a feeding port (111) at the top of the machine shell (10), the feeding port (111) is conical and connected with the crushing device at the end, a pushing roller (112) is installed on the sidewall of the feeding port (111), the surface of the pushing roller (112) is provided with friction protrusions, and the pushing roller (112) is drivingly connected with a power device.

4. The rubber recycling crushing and impurity removing device according to claim 1, characterized in that: The crushing device comprises a coarse shredder (2), the coarse shredder (2) is connected and installed with a fine shredder (21) at the bottom discharge, the fine shredder (21) is provided with a vibrating screen (22) at the bottom discharge, and the waste rubber materials sequentially pass through the coarse shredder (2) for preliminary crushing, the fine shredder (21) for secondary crushing and the vibrating screen (22) for qualified particle size screening.

5. The rubber recycling crushing and impurity removing device according to claim 4, characterized in that: The vibrating screen (22) is connected and installed with a vibrating device, a feeding push plate (221) is slidingly installed on the vibrating screen (22), the feeding push plate (221) moves circularly between the feeding port of the fine shredder (21) and the vibrating screen (22), the feeding push plate (221) is used for conveying the unqualified rubber particles screened by the vibrating screen (22) back to the feeding port of the fine shredder (21) for circular crushing, and the feeding push plate (221) is driven to move by a conveying chain (222); A dust filtering screen (23) is arranged at one end of the vibrating screen (22) discharge, and a dust collecting box (231) is arranged at the bottom of the dust filtering screen (23).

6. The rubber recycling crushing and impurity removing device according to claim 1, characterized in that: The soaking device comprises a soaking pool (3), the soaking pool (3) is provided with an agitator (31) therein, one side of the top of the soaking pool (3) is connected with the bottom through a circulating pipeline, a first circulating pump (33) is installed on the circulating pipeline, the first circulating pump (33) is used for conveying the soaking liquid from the top of the soaking pool (3) back to the bottom to form circulating flow of the soaking liquid, the discharge port of the crushing device is connected with the circulating pipeline in front of the first circulating pump (33), and a material filtering plate (32) is arranged at the top of the soaking pool (3) and the connecting position with the circulating pipeline.

7. The rubber recycling crushing and impurity removing device according to claim 6, characterized in that: The stirrer (31) is provided with spiral blades (311) for stirring the rubber particles and the soaking liquid in the soaking pool (3); The filter plate (32) is barrel-shaped, and the rubber particles and the soaking liquid flow from the inside to the outside of the filter plate (32) for filtration. The inside of the filter plate (32) is provided with a spiral lifting machine (321), and the spiral lifting machine (321) is connected to the cleaning device at the delivery end. The top end of the circulating pipeline on the front side of the first circulating pump (33) is provided with a feeding port (331) connected to the discharge port of the crushing device. The first circulating pump (33) is provided with a first filter screen (332) in the circulating pipeline on the front side.

8. The rubber recycling crushing and impurity removing device according to claim 1, characterized in that: The cleaning device comprises a cleaning pool (4) provided with a centrifugal machine (41) arranged along the central axis and drivingly connected to a power device. The surface of the centrifugal machine (41) is in a mesh structure. The centrifugal machine (41) is installed by a lifting support (411) and is arranged to slide up and down in the cleaning pool (4). The lifting support (411) controls the centrifugal machine (41) to be immersed in the cleaning liquid in the cleaning pool (4) and to be lifted out of the cleaning liquid.

9. The rubber recycling crushing and impurity removing device according to claim 8, characterized in that: The centrifugal machine (41) is provided with a discharge plate (412) arranged to slide up and down in the centrifugal machine (41). The bottom end and the top end of the cleaning pool (4) are connected by a circulating water pipeline, and a second circulating pump (42) is installed on the circulating water pipeline. The second circulating pump (42) is used to deliver the cleaning liquid from the bottom end of the cleaning pool (4) to the top end to form a circulating flow of the cleaning liquid. The second circulating pump (42) is provided with a second filter screen (421) in the circulating water pipeline on the rear side.

10. The rubber recycling crushing and impurity removing device according to any one of claims 1-9, characterized in that: The cleaning device is connected to a collecting device at the discharge port. The collecting device is used to collect and store the waste rubber particles after cleaning. The collecting device comprises a collecting tank (5) connected and installed with a dryer (51).

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