A recyclable solid waste treatment system

CN122682901APending Publication Date: 2026-09-04XINJIANG DINGHENG CONSTR ENG CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202611054241.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-07-15
Publication Date
2026-09-04

AI Technical Summary

Technical Problem

[0002]随着城镇化与工业产业快速发展,固体废物排放量持续增长,传统填埋、焚烧处置方式易造成土地资源浪费、水土污染等环境问题

Benefits of technology

1、本方案,采用预处理破碎、多级递进式分选、热解耦合多产物协同回收的一体化闭环设计,针对传统废旧橡胶处理工艺中难以去除玻璃、砂石等非金属硬质杂质的技术短板进行优化。传统磁选、涡电流分选仅能实现金属杂质剔除,难以对不导电、不导磁的玻璃、砂石杂质进行有效分离,导致杂质残留在物料内部,持续影响后续生产工况与产物质量,同时这些杂质也因质量问题难以被负压吸附。本方案,先通过机械破碎均质化物料,再依托磁选、涡电流单元清除各类金属杂质,配合负压吸附拦截微细胶粉与纤维絮状物,最后通过预制水体密度分选机理,利用橡胶固废颗粒与玻璃、砂石杂质的密度物性差异,实现非金属硬质杂质的分层脱除,从而降低橡胶固废中残留的非金属杂质,即从源头减少硬质杂质进入热解设备引发的炉体磨损、管道堵塞、设备腐蚀等问题,减少杂质干扰导致的热解油、再生炭黑产物纯度不足的情况。同时,本方案整合热能和电能的闭环回用机制,结合热解气、热解油、改性再生炭黑及建材辅料的多产物协同制备工艺,实现废旧橡胶固废无害化、减量化、全组分高值资源化循环利用,以提升固废处理纯净度,从而提高橡胶固废的资源化利用率与产品附加值;

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122682901A_ABST
    Figure CN122682901A_ABST
Patent Text Reader

Abstract

The present application relates to solid waste resource utilization technical field, specifically to a kind of recyclable solid waste treatment system, including pretreatment module, sorting module, pyrolysis module, gas recovery module, liquid recovery module and solid recovery module;Sorting module is used to remove ferromagnetic metal and non-ferromagnetic metal in rubber solid waste particles based on magnetic separation technology and eddy current technology, and then based on negative pressure adsorption, adsorption removes textile fiber impurities, and then is put into prefabricated water, through density difference, rubber solid waste particles and non-metallic impurities are layered, and corresponding non-metallic impurities are removed, and after drying, it is put into pyrolysis module and pyrolyzed.The present application uses density difference to make rubber solid waste particles and glass, sandstone and other non-metallic impurities layered separation, remove hard non-metallic impurities such as glass, sandstone and other hard non-metallic impurities mixed in waste rubber, reduce the wear and tear of these impurities to block pyrolysis equipment, reduce the product quality, to improve waste rubber solid waste resource utilization rate.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of solid waste resource utilization technology, and specifically to a recyclable solid waste treatment system. Background Technology

[0002] With rapid urbanization and industrial development, solid waste emissions continue to grow. Traditional landfill and incineration methods easily lead to environmental problems such as land resource waste and water and soil pollution. Solid waste resource recycling can achieve the reduction, harmlessness, and high-value utilization of solid waste, and is the mainstream development direction in the field of ecological environmental protection and solid waste treatment, widely applied in various solid waste disposal scenarios. Among them, waste rubber and waste tire solid waste are produced in large quantities and are difficult to degrade naturally, possessing excellent recycling value. This type of rubber solid waste has a stable structure and strong toughness. Through resource recycling, combustible gas, pyrolysis oil, recycled carbon black, and metal materials can be recovered, resulting in significant economic and environmental benefits, making it a key category for solid waste recycling.

[0003] Currently, most existing waste rubber solid waste treatment processes adopt a "crushing + multi-stage sorting + pyrolysis resource recovery" model. For metal impurities in the rubber crushing products, the industry commonly uses a combination of magnetic separation and eddy current separation to effectively separate exposed ferromagnetic metals and non-ferromagnetic metals such as copper and aluminum from the rubber particles. This reduces the impact of metal impurities on subsequent equipment and product quality, basically meeting the production requirements for metal removal from conventional rubber. Simultaneously, negative pressure adsorption is used to remove solid waste such as textile fibers.

[0004] In actual production processes, waste rubber, especially waste tire raw materials, is often mixed with hard non-metallic impurities such as glass and sand. Since glass impurities are non-magnetic and non-conductive, they cannot be identified and separated by magnetic separation or eddy current separation equipment. Conventional dry separation methods such as screening and air separation are also difficult to separate these glass impurities. After these residual glass impurities enter the subsequent pyrolysis process, they will not only cause furnace wear, scaling and blockage, and equipment corrosion, but also affect the purity of pyrolysis oil and recycled carbon black products, thereby improving the resource utilization rate and product added value of rubber solid waste.

[0005] Therefore, this invention proposes a recyclable solid waste treatment system to reduce hard non-metallic impurities such as glass and sand mixed in waste rubber. Summary of the Invention

[0006] To address the aforementioned issues, this invention provides a recyclable solid waste treatment system for multi-stage crushing and impurity removal of waste rubber solid waste. This system effectively removes hard impurities such as metals, fibers, and glass sand. Combined with pyrolysis and product recovery processes, it activates and modifies pyrolysis carbon black residue to prepare recycled carbon black, and stabilizes residual inert residue to prepare building materials, thereby achieving the resource-based recycling of all components of solid waste.

[0007] To achieve the above objectives, the technical solution of the present invention is as follows: a recyclable solid waste treatment system, comprising: The pretreatment module is used to perform multi-stage crushing of old rubber solid waste to obtain the first product; The sorting module is used to remove ferromagnetic and non-ferromagnetic metals from the first product based on magnetic separation and eddy current technology to obtain the second product; it then uses negative pressure adsorption to adsorb and remove textile fiber impurities from the second product to obtain the third product; the third product is then put into a pre-prepared water body to achieve the stratification of rubber solid waste and non-metallic impurities and remove non-metallic impurities from the third product, and finally obtains the fourth product after drying. The pyrolysis module is used to carry out the pyrolysis reaction of the fourth product under an inert atmosphere and segmented temperature control conditions, and to crack it into pyrolysis gas, pyrolysis oil and solid carbon black residue. The gas recovery module is used to purify the pyrolysis gas by removing dust, desulfurizing and denitrifying. The purified gas is then burned to provide electricity and heat energy for closed-loop reuse. The liquid recovery module is used to fractionate and hydrogenate the pyrolysis oil to produce qualified fuel oil, and to purify and reuse the process wastewater in a closed loop. The solid recovery module is used to activate and modify the carbon black residue generated by the pyrolysis module to prepare recycled carbon black for rubber preparation.

[0008] Furthermore, the sorting module includes a magnetic attraction unit, an eddy current unit, an adsorption unit, and a buoyancy unit; the rubber particles are processed sequentially through the magnetic attraction unit, the eddy current unit, the adsorption unit, and the buoyancy unit before being fed into the pyrolysis module; The magnetic adsorption unit is used to adsorb and separate exposed ferromagnetic metal impurities in rubber particles; Eddy current units are used to separate non-ferromagnetic metallic impurities from rubber particles by utilizing the principle of eddy current repulsion. The adsorption unit is used to adsorb and retain rubber powder, flocculent impurities and debris; The buoyancy unit is used to configure a pre-made water body based on the density of rubber. According to the density difference, the rubber particles and impurities are separated into layers. The separated rubber particles are then washed, dried and transported into the pyrolysis module.

[0009] Furthermore, the heat energy generated by the gas recovery module is transported to the buoyancy unit to dry the rubber particles and heat the pre-made water.

[0010] Furthermore, the heat generated by the pyrolysis module is transferred to the buoyancy unit to dry the rubber particles and heat the pre-made water.

[0011] Furthermore, the gas recovery module is also used to transfer heat to the solid recovery module for drying the recycled carbon black.

[0012] Furthermore, the buoyancy unit includes a buoyancy tank, inside which is a heating component for heating the water temperature inside the buoyancy tank, and at the top of the buoyancy tank are fixedly connected several guiding components for pulling the rubber particles on the water surface from the feed end to the discharge end.

[0013] Furthermore, the heating assembly includes a controller, a temperature sensor, and several heating tubes. All heating tubes are fixedly connected to the buoyancy tank, and both ends of the heating tubes penetrate through both sides of the buoyancy tank. All heating tubes are connected to the pyrolysis module and the gas recovery module. The temperature sensor is fixedly connected to the inner wall of the buoyancy tank, and the controller is electrically connected to the temperature sensor.

[0014] Furthermore, each of the guiding components includes a motor and a protective cover, both of which are fixedly connected to the top of the buoyancy tank. The output shaft of each motor is coaxially fixedly connected to a rotating shaft, which extends into the protective cover and rotates in cooperation with it. Several guide blades are fixedly connected to the surface of each rotating shaft.

[0015] Furthermore, striking blades are fixedly connected to the side of the guide blades away from the rotation axis.

[0016] Furthermore, the surface of the striking blades has several through holes, the diameter of which is smaller than the diameter of the rubber particles.

[0017] The above approach has the following beneficial effects: 1. This solution adopts an integrated closed-loop design that combines pretreatment crushing, multi-stage progressive sorting, and pyrolysis-coupled multi-product synergistic recovery. It optimizes the traditional waste rubber processing technology, addressing the difficulty in removing non-metallic hard impurities such as glass and sand. Traditional magnetic separation and eddy current separation can only remove metallic impurities, failing to effectively separate non-conductive and non-magnetic glass and sand impurities. This results in impurities remaining inside the material, continuously affecting subsequent production conditions and product quality. Furthermore, these impurities are difficult to adsorb under negative pressure due to their inherent quality issues. This solution first homogenizes the material through mechanical crushing, then removes various metallic impurities using magnetic separation and eddy current units, and uses negative pressure adsorption to intercept fine rubber powder and fibrous flocs. Finally, through a pre-prepared water density separation mechanism, it utilizes the density difference between rubber solid waste particles and glass and sand impurities to achieve the stratified removal of non-metallic hard impurities, thereby reducing the amount of residual non-metallic impurities in rubber solid waste. This reduces problems such as furnace wear, pipe blockage, and equipment corrosion caused by hard impurities entering the pyrolysis equipment from the source, and reduces the purity of pyrolysis oil and recycled carbon black products caused by impurity interference. Simultaneously, this solution integrates a closed-loop recycling mechanism for thermal and electrical energy, combined with a multi-product synergistic preparation process of pyrolysis gas, pyrolysis oil, modified recycled carbon black, and building material auxiliary materials, to achieve the harmless, reduced, and high-value resource recycling of waste rubber solid waste, thereby improving the purity of solid waste treatment and increasing the resource utilization rate and added value of rubber solid waste products. 2. This solution uses a heating component to maintain a constant temperature in the pre-prepared water body. On one hand, this effectively increases the solubility of soluble substances within the water, stabilizing the water density and ensuring it remains greater than the density of the waste rubber particles. This provides a stratified basis for stable rubber floating and the settling of high-density hard impurities, guaranteeing sorting stability and accuracy. On the other hand, moderate hot water heating causes slight thermal expansion of the rubber particles, loosening the tight seals formed during the crushing of the rubber solid waste. This reduces the binding force of the rubber matrix on embedded metal, glass, and sand / gravel impurities, making these impurities loose and easily detachable. Simultaneously, as the rubber particles float and are transported with the water, impact blades continuously strike the water surface, creating periodic, instantaneous impacts and water flow disturbances on the loosened rubber particles. Through the combined effects of mechanical impact and water jets, various hard impurities originally hidden or embedded within the rubber are shaken off and peeled into the water, achieving deep dissociation and removal of embedded impurities. In addition, this solution uses the waste heat from the pyrolysis module and the gas recovery module to heat the water and dry the materials, realizing closed-loop recycling of waste heat. While reducing equipment energy consumption and saving production costs, it also completes the integrated operation of deep removal of impurities, cleaning and purification of materials, and drying and discharging, effectively improving the purity of rubber materials and meeting the needs of continuous, large-scale and refined processing of waste rubber solid waste.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a process for an embodiment of the recyclable solid waste treatment system of the present invention; Figure 2 This is a schematic diagram of the overall structure of the buoyancy unit in an embodiment of the recyclable solid waste treatment system of the present invention; Figure 3 This is a side sectional view of the buoyancy unit in an embodiment of the recyclable solid waste treatment system of the present invention; Figure 4 This is a schematic diagram of the impact blades in an embodiment of the recyclable solid waste treatment system of the present invention.

[0020] The reference numerals in the accompanying drawings of the instruction manual include: 1. Buoyancy tank; 2. Protective cover; 3. Motor; 301. Rotating shaft; 4. Heating tube; 5. Separating liquid; 6. Guide vane; 601. Striking vane. Detailed Implementation

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

[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., 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 the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] The following detailed description illustrates the specific implementation method: Example 1: like Figure 1 As shown, a recyclable solid waste treatment system includes a pretreatment module, a sorting module, a pyrolysis module, a gas recovery module, a liquid recovery module, and a solid recovery module. Specifically, the sorting module includes a magnetic attraction unit, an eddy current unit, an adsorption unit, and a buoyancy unit. Among them, as... Figure 2 and Figure 3 As shown, the buoyancy unit includes a buoyancy tank 1, which contains a stratified liquid 5 (i.e., pre-prepared water, preferably prepared with highly soluble inorganic salts, such as calcium chloride solution). A heating component is installed inside the buoyancy tank 1 to heat the water inside. Several guide components are fixedly connected to the top of the buoyancy tank 1 to guide rubber particles on the water surface from the inlet to the outlet. The heating component includes a controller, a temperature sensor, and several heating tubes 4, all of which are fixedly connected to the buoyancy tank 1 and heat... Both ends of the pipe 4 penetrate both sides of the buoyancy tank 1; the heating pipe 4 is connected to the pyrolysis module and the gas recovery module; the temperature sensor is fixedly connected to the inner wall of the buoyancy tank 1, and the controller is electrically connected to the temperature sensor; the guiding components all include a motor 3 and a protective cover 2, both of which are fixedly connected to the top of the buoyancy tank 1, and the output shaft of the motor 3 is coaxially fixedly connected to a rotating shaft 301, which extends into the protective cover 2 and rotates in cooperation with the protective cover 2; several guide blades 6 are fixedly connected to the surface of the rotating shaft 301.

[0025] First, the waste rubber is crushed by the pretreatment module (preferably a 4800R multi-stage crusher) to obtain rubber solid waste particles with suitable particle size.

[0026] The rubber solid waste particles are then sequentially passed through a magnetic attraction unit, an eddy current unit, an adsorption unit, and a buoyancy unit for multi-faceted impurity removal. Specifically, the rubber solid waste particles are first fed into the magnetic attraction unit, where a permanent magnet drum separator is used to adsorb and separate ferromagnetic metal impurities such as steel wire and iron filings exposed on the surface of the rubber solid waste particles using a constant strong magnetic field. Subsequently, the rubber solid waste particles enter the eddy current unit, where a high-frequency eddy current separator is used to generate eddy current repulsion through alternating magnetic field induction, separating and peeling off non-ferromagnetic metal impurities such as copper and aluminum mixed in the material. Afterward, the rubber solid waste particles are conveyed to the adsorption unit, where a negative pressure bag adsorption dust removal device is used to adsorb and retain suspended rubber fine powder, textile fibers from waste tires, and lightweight flocculent debris using the principle of negative pressure suction. Because non-conductive and non-magnetic non-metallic hard impurities such as glass and sand are easily embedded inside the crushed waste rubber particles, conventional magnetic separation, eddy current and negative pressure adsorption processes are difficult to effectively remove them. The residual impurities entering the subsequent pyrolysis process can easily cause wear on the inner wall of the pyrolysis furnace, scaling and blockage of pipes, and corrosion of equipment. It will also seriously affect the purity of the finished pyrolysis oil and recycled carbon black. Therefore, the rubber solid waste particles are sent into the buoyancy tank 1 containing the stratified liquid 5, and the residual heat of the pyrolysis module and gas recovery module is used to heat the stratified liquid 5 at a constant temperature through the heating pipe 4. At the same time, the water temperature is adjusted in real time by temperature sensor and controller (for example, adjusting the gas flow rate in the heating pipe 4) to increase the solubility of soluble substances in the stratified liquid 5, stabilize the water density, and ensure that the density of the rubber solid waste particles is less than the density of the stratified liquid 5, so that the rubber solid waste particles are stably suspended on the liquid surface, and the high-density glass and sand impurities sink to the bottom of the buoyancy tank 1 on their own. Simultaneously, motor 3 is started, driving rotating shaft 301 and guide vanes 6 to rotate together. Guide vanes 6 periodically agitate the stratified liquid 5 along a preset direction. Rubber solid waste particles flow with the stratified liquid 5 from the inlet to the outlet of buoyancy tank 1. After cleaning and drying, they are transported by a subsequent conveying device (e.g., a conveyor belt) to the pyrolysis module (the drying heat can be provided by the pyrolysis module and the gas recovery module). Under inert atmosphere and segmented temperature control, a complete pyrolysis reaction occurs, producing three products: pyrolysis gas, pyrolysis oil, and solid carbon black residue. Subsequently, the pyrolysis gas, pyrolysis liquid, and solid carbon black residue are transported to the gas recovery module, liquid recovery module, and solid recovery module, respectively, for resource recovery processing.

[0027] The solid recovery module activates, modifies, and purifies the carbon black residue generated from pyrolysis, optimizing its physicochemical properties to produce high-quality recycled carbon black that can be reused in rubber product processing, achieving full-component, end-to-end resource recycling of waste rubber solid waste. The liquid recovery module performs multi-stage fractionation and hydrogenation refining on the pyrolysis oil, removing impurities and unsaturated components to produce qualified fuel oil. The gas recovery module sequentially purifies the collected pyrolysis gas through dust removal, desulfurization, and denitrification, removing harmful components such as dust, sulfides, and nitrogen oxides. The purified clean combustible gas is then burned to generate electricity and heat, supplying the system equipment. Waste heat is transferred to the buoyancy unit and the solid recovery module for water temperature heating, particle drying, and carbon black drying, achieving closed-loop energy reuse.

[0028] Example 2: The difference from Example 1 is that, as Figure 3 and Figure 4 As shown, the guide blades 6 are integrally formed with striking blades 601 on the side away from the rotating shaft 301. The surface of the striking blades 601 has several through holes, and the diameter of the through holes is smaller than the diameter of the rubber particles.

[0029] During the crushing process of waste rubber, small fragments of some metallic and non-metallic hard materials (such as glass, stones, etc.) easily embed themselves on the surface of the rubber solid waste particles, making them difficult to remove in the sorting process of Example 1. These fragments then accompany the rubber solid waste particles through the pyrolysis module, affecting the pyrolysis efficiency. Specifically, when the rubber solid waste particles are placed in the buoyancy tank 1, they are heated by the stratified liquid 5, causing slight thermal expansion. This loosens the gaps around the impurities embedded on the surface of the rubber solid waste particles (hard impurities such as glass, stones, and metal have extremely low coefficients of thermal expansion, and their deformation after heating is negligible; their expansion deformation is far lower than that of the rubber solid waste particles, and the difference in deformation creates tiny gaps at the interface between the impurities and the rubber matrix). This reduces the binding force of the rubber matrix on the embedded hard impurities, allowing the stones and glass impurities embedded on the surface of the rubber matrix to be loose and easily detached. Simultaneously, the motor 3 drives the rotating shaft 301 to rotate the guide blade 6 and the integrated striking blade 601 synchronously. The striking blade 601 periodically and smoothly cuts into and strikes the water surface, creating a high-frequency, uniform mechanical impact and hydrodynamic shock on the suspended rubber particles. This powerfully peels away the loose, embedded hard impurities. Specifically, the rubber particles are pressed into the water along with the striking blade 601, experiencing an instantaneous downward force. Immediately afterwards, driven by their own buoyancy and the rebound reaction force of the water, the rubber particles quickly rebound upward, generating a strong instantaneous upward force. Under the repeated action of the two sets of alternating instantaneous forces, based on the principle of inertial motion, the change in the motion state of hard fragments such as glass, stones, and metal exhibits a significant lag, resulting in relative slippage between them and the rubber particle body. The embedded impurities, which were already loosened due to thermal expansion, break free from the rubber matrix's encapsulation and restraint under the superposition of alternating impact force and relative slippage, ultimately detaching completely from the particle surface. The detached hard fragments, due to their much higher density than the stratified liquid 5, will quickly settle to the bottom of the buoyancy tank, achieving complete separation. This effectively reduces the amount of fine impurities that enter the pyrolysis module with the material, ensuring stable operation and overall processing efficiency in subsequent pyrolysis processes. Simultaneously, the small through-holes on the surface of the striking blades 601 effectively guide water flow, reducing the likelihood of rubber particles sliding to the sides of the blades and weakening the striking effect. This also reduces water turbulence that could cause rubber solid waste particles to tumble and be lost. Furthermore, it prevents rubber particles from passing through, as the flow cross-section narrows when water flows through the through-holes. Based on the principle of fluid continuity, the water velocity increases significantly. The high-speed water jet from the through-holes creates a pre-amplitude hydraulic impact on the rubber particles behind the striking blades 601. While ensuring stable material transport, this impact can pre-disturb the surface of the rubber particles, further loosening any embedded impurities that have not yet completely detached.

[0030] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A recyclable solid waste treatment system, characterized in that, include: The pretreatment module is used to perform multi-stage crushing of old rubber solid waste to obtain the first product; The sorting module is used to remove ferromagnetic and non-ferromagnetic metals from the first product based on magnetic separation and eddy current technology to obtain the second product; and to remove textile fiber impurities from the second product based on negative pressure adsorption to obtain the third product. The third product is added to the pre-made water body to achieve the stratification of rubber solid waste and non-metallic impurities and remove the non-metallic impurities in the third product. After drying, the fourth product is obtained. The pyrolysis module is used to carry out the pyrolysis reaction of the fourth product under an inert atmosphere and segmented temperature control conditions, and to crack it into pyrolysis gas, pyrolysis oil and solid carbon black residue. The gas recovery module is used to purify the pyrolysis gas by removing dust, desulfurizing and denitrifying. The purified gas is then burned to provide electricity and heat energy for closed-loop reuse. The liquid recovery module is used to fractionate and hydrogenate the pyrolysis oil to produce qualified fuel oil, and to purify and reuse the process wastewater in a closed loop. The solid recovery module is used to activate and modify the carbon black residue generated by the pyrolysis module to prepare recycled carbon black for rubber preparation.

2. The recyclable solid waste treatment system according to claim 1, characterized in that, The sorting module includes a magnetic attraction unit, an eddy current unit, an adsorption unit, and a buoyancy unit; rubber solid waste particles are processed sequentially through the magnetic attraction unit, the eddy current unit, the adsorption unit, and the buoyancy unit before being fed into the pyrolysis module; The magnetic adsorption unit is used to adsorb and separate exposed ferromagnetic metal impurities in rubber particles; Eddy current units are used to separate non-ferromagnetic metallic impurities from rubber particles by utilizing the principle of eddy current repulsion. The adsorption unit is used to adsorb and retain rubber powder, flocculent impurities and debris; The buoyancy unit is used to configure a pre-made water body based on the density of rubber. According to the density difference, the rubber particles and impurities are separated into layers. The separated rubber particles are then washed, dried and transported into the pyrolysis module.

3. The recyclable solid waste treatment system according to claim 2, characterized in that, The heat generated by the gas recovery module is delivered to the buoyancy unit to dry the rubber particles and heat the pre-made water.

4. The recyclable solid waste treatment system according to claim 3, characterized in that, The heat generated by the pyrolysis module is transferred to the buoyancy unit to dry the rubber particles and heat the pre-made water.

5. The recyclable solid waste treatment system according to claim 4, characterized in that, The gas recovery module is also used to transfer heat to the solid recovery module for drying the recycled carbon black.

6. The recyclable solid waste treatment system according to claim 5, characterized in that, The buoyancy unit includes a buoyancy tank (1), and a heating component for heating the water inside the buoyancy tank (1) is provided inside the buoyancy tank (1). Several guide components for pulling rubber particles on the water surface from the feed end to the discharge end are fixedly connected to the top of the buoyancy tank (1).

7. The recyclable solid waste treatment system according to claim 6, characterized in that, The heating assembly includes a controller, a temperature sensor and several heating tubes (4). The heating tubes (4) are all fixedly connected to the buoyancy tank (1), and both ends of the heating tubes (4) pass through both sides of the buoyancy tank (1). The heating tubes (4) are all connected to the pyrolysis module and the gas recovery module. The temperature sensor is fixedly connected to the inner wall of the buoyancy tank (1), and the controller is electrically connected to the temperature sensor.

8. The recyclable solid waste treatment system according to claim 7, characterized in that, The guiding components all include a motor (3) and a protective cover (2). The motor (3) and the protective cover (2) are fixedly connected to the top of the buoyancy tank (1). The output shaft of the motor (3) is coaxially fixedly connected to a rotating shaft (301). The rotating shaft (301) extends into the protective cover (2) and rotates with the protective cover (2). Several guide blades (6) are fixedly connected to the surface of the rotating shaft (301).

9. The recyclable solid waste treatment system according to claim 8, characterized in that, Each guide blade (6) is fixedly connected to a striking blade (601) on the side away from the rotating shaft (301).

10. The recyclable solid waste treatment system according to claim 9, characterized in that, The surface of the striking blade (601) has several through holes, the diameter of which is smaller than the diameter of the rubber particles.