Intelligent device for gas separation and purification in rubber recovery and rubber powder production

Abstract

The invention relates to the technical field of waste gas treatment, in particular to an intelligent device for gas separation and purification in rubber recovery and rubber powder production, which comprises a barrel, a gas inlet pipe is arranged on the side wall of the bottom of the barrel, a gas outlet is formed in the top of the barrel, and the barrel sequentially comprises a separation cavity, a decomposition catalysis cavity, an adsorption cavity and an incineration cavity from bottom to top, an eddy magnetic separation assembly is arranged in the separation cavity, a catalytic decomposition assembly is arranged in the decomposition catalysis cavity, a screening adsorption assembly is arranged in the adsorption cavity, and a combustion driving assembly is arranged in the incineration cavity; a transmission assembly is arranged at the axis of the barrel; a humidity adjusting assembly is further arranged between the separation cavity and the decomposition catalysis cavity, and a centrifugal adjusting assembly is arranged on the screening adsorption assembly. The technical defect that in the prior art, toxic gas cannot be deeply degraded, and complex organic matter pollution cannot be removed is effectively overcome.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, specifically to an intelligent device for gas separation and purification in rubber recycling and rubber powder production. Background Technology

[0002] In traditional rubber recycling and rubber powder production processes, harmful gases (such as volatile organic compounds VOCs and hydrogen sulfide H2S) and dust are generated during rubber pyrolysis and crushing. The exhaust gas has a complex composition and contains highly toxic substances. These substances are carcinogenic, corrosive, and irritating. If they are emitted directly without treatment, they will cause air pollution and deterioration of the surrounding ecological environment. The dust generated during the production process (such as rubber powder particles) may cause respiratory diseases and threaten the health of workers.

[0003] In the prior art, Chinese patent publication number CN115746394A proposes an atmospheric pressure regeneration topologically modified reclaimed rubber device, including a frame, a primary reactor, a secondary reactor, a tail gas condenser and purifier, a transfer control valve, a discharge control valve, and an exhaust valve. Both the primary and secondary reactors are embedded within the frame, and each reactor has a feeding port at its top. The main innovation of this document lies in its atmospheric pressure operation, avoiding the safety hazards of traditional high-pressure equipment. Simultaneously, it improves efficiency and environmental friendliness through modular design and tail gas waste heat utilization.

[0004] In practical applications, the exhaust gas treatment mentioned in the aforementioned document relies on condenser purifiers and air vortex tubes to cool the exhaust gas and recover waste heat, but it does not address the deep degradation of toxic gases such as VOCs and H2S. Exhaust gas is only physically separated through condensation and heat exchange, which cannot solve the pollution problems of complex organic compounds such as benzene series compounds and polycyclic aromatic hydrocarbons (PAHs). Therefore, it is necessary to design an intelligent device for gas separation and purification in rubber recycling and rubber powder production to solve the above problems. Summary of the Invention

[0005] To address the aforementioned issues, this invention provides an intelligent device for gas separation and purification in rubber recycling and rubber powder production. Through a multi-stage purification system, and by employing a multi-chamber collaborative processing, eddy current magnetic separation, and catalytic decomposition linkage design, it achieves efficient separation of metal dust and deep degradation of organic waste gas, thus overcoming the shortcomings of secondary pollution and high energy consumption in traditional technologies.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: An intelligent device for gas separation and purification in rubber recycling and rubber powder production includes a cylinder, an air inlet pipe on the bottom side wall of the cylinder, and an air outlet on the top of the cylinder. The cylinder contains, from bottom to top, interconnected separation chamber, decomposition catalytic chamber, adsorption chamber, and incineration chamber. The separation chamber is equipped with an eddy current magnetic separation component, which is used to separate dust and metal particulate impurities from the gas to be purified by mass separation and magnetic separation using eddy current and electromagnetic effects, respectively. The decomposition catalytic chamber is equipped with a catalytic decomposition component for degrading organic waste gas and converting sulfur-containing components. The adsorption chamber is equipped with a sieving adsorption component for adsorbing and treating volatile organic compounds in the gas to be purified. The incineration chamber is equipped with a combustion drive component for incinerating and oxidizing the residual organic compounds in the gas to be purified and recovering heat energy. A transmission component is installed at the shaft center of the cylinder. During the operation of the combustion drive component, the transmission component converts the heat pressure generated by combustion into rotational driving force, which is then transmitted to the eddy current magnetic separation component to replace the drive source. A humidity regulating component is also installed between the separation chamber and the decomposition catalysis chamber to detect and regulate the humidity of the gas to be purified. The humidity regulating component is connected to the control system. A centrifugal regulating component is installed on the sieving adsorption component. When the humidity regulating component is activated, it will affect the rotational speed of the eddy current magnetic separation component. The change in rotational speed is received by the centrifugal speed regulating component through the transmission component to regulate the gas flow time in the sieving adsorption component.

[0007] The technical principle of the above scheme is as follows: When the gas enters the device, it first undergoes eddy current magnetic separation by the eddy current magnetic separation component. Utilizing the special physical effect generated by the eddy current, combined with the magnetic separation, metal fragments and some dust in the gas can be initially separated. Next, the gas with some impurities separated enters the decomposition catalytic chamber. The catalytic decomposition component deeply decomposes the toxic and harmful substances in the gas. After catalytic decomposition, the gas enters the adsorption chamber, where the remaining tiny particles and some incompletely decomposed pollutants are adsorbed and removed by the screening and adsorption component, further purifying the gas. Finally, the adsorbed and purified gas enters the incineration chamber. Inside the incineration wall, the combustion drive component converts the heat energy generated by combustion into mechanical energy, providing power for the entire separation process and also performing final incineration treatment to ensure that the pollutants in the gas are completely removed.

[0008] Throughout the operation, the humidity control component and the centrifugal speed control component are linked. The humidity control component can adjust in real time according to the humidity of the gas to ensure that the gas is within the suitable humidity range for processing. Meanwhile, the centrifugal speed control component dynamically adjusts the purification time of gas sieving and adsorption based on the gas flow rate and processing conditions, ensuring a dynamic balance in gas treatment efficiency.

[0009] The above approach has the following beneficial effects: 1. This solution employs a dual eddy current and electromagnetic separation mechanism, utilizing the differences in physical properties of different substances in eddy currents and magnetic fields to achieve solid-gas separation. Under the action of eddy currents, metal scraps and rubber powder particles will generate different motion trajectories. At the same time, electromagnetic force further adsorbs and separates the metal scraps, enabling the metal scraps and rubber powder particles to achieve differentiated separation based on their physical properties. The separation accuracy is improved compared to traditional technologies, thereby increasing the separation efficiency of metals and dust in rubber recycling and rubber powder production processes.

[0010] 2. This solution incorporates a humidity detection component to monitor gas humidity in real time and link it with the atomization spray mechanism. This keeps the humidity stably controlled within the optimal range for catalysis and adsorption, avoiding equipment corrosion caused by excessive humidity or static electricity risks caused by excessively low humidity, thus ensuring consistent purification efficiency throughout the entire process.

[0011] 3. This solution features an adaptive adsorption time adjustment mechanism that dynamically adjusts the residence time of gas in the adsorption chamber based on humidity detection results. When humidity is abnormal, the purification cycle is automatically extended to ensure that pollutants are fully removed. When humidity meets the standard, the treatment time is shortened to improve energy efficiency and overall treatment efficiency.

[0012] Furthermore, the transmission assembly includes a first rotating shaft rotatably connected to the bottom wall of the cylinder via a bearing. The top end of the first rotating shaft extends into the combustion chamber. A rotating bracket welded to the inner side wall of the cylinder is provided inside the combustion chamber. A second rotating shaft is rotatably connected inside the rotating bracket. An input turbine located inside the rotating bracket is sleeved and fixed on the second rotating shaft. The bottom end of the second rotating shaft is aligned with the top end of the first rotating shaft. A magnetic coupler is provided between the bottom end of the second rotating shaft and the top end of the first rotating shaft. The first rotating shaft and the second rotating shaft are connected to each other through the magnetic coupler.

[0013] Beneficial effects: The transmission assembly uses a magnetic coupler to connect the dual-shaft system, achieving power transmission between the combustion chamber and the separation chamber. Furthermore, the non-contact transmission method of the magnetic coupler avoids direct wear on mechanical components due to high temperatures. Simultaneously, the magnetic coupling transmission method allows for speed variations and effectively compensates for system load fluctuations. When the system load changes, the magnetic coupler can automatically adjust the transmission ratio, ensuring stable equipment operation and improving operational stability and service life.

[0014] Furthermore, the combustion drive assembly includes several fuel pipes that are uniformly fixed and connected to the side wall of the combustion chamber along the circumference of the cylinder. The bodies of the fuel pipes are all fixedly connected to the cylinder, and one end of each fuel pipe extends into the combustion chamber below the input turbine. The open ends of the fuel pipes in the combustion chamber all face the input turbine.

[0015] Beneficial effects: The combination of multiple fuel pipes and turbine directional injection design creates a stable swirling combustion field within the device. This design allows for more complete fuel combustion, improves the kinetic energy conversion efficiency of hot-pressed gas, and ensures that the input turbine receives a continuous and uniform driving force by utilizing a stable swirling combustion field. This avoids local overheating and effectively prevents catalytic failure caused by local overheating, thereby improving the overall processing efficiency and stability of the device.

[0016] Furthermore, the eddy current magnetic separation assembly includes an electromagnet embedded in the side wall of the separation chamber, and a dust removal bag fixedly connected to the inner side wall of the cylinder is provided at the connection between the separation chamber and the decomposition catalytic chamber. The inner edge of the dust removal bag is rotatably connected to the first rotating shaft.

[0017] Beneficial effects: The magnetic separation unit adopts a layered layout of electromagnets and dust collector bags to separate the two processes of metal adsorption and dust interception, so that metal and dust can be effectively treated at different stages.

[0018] Furthermore, the catalytic decomposition component includes a spiral groove plate detachably connected to the inner wall of the cylinder, the spiral groove plate is covered with a catalytic layer, a support tube is provided on the inner edge of the spiral groove plate, the outer side of the support tube is fixedly connected to the inner wall of the cylinder, a through hole corresponding to the first rotating shaft is opened at the axis of the support tube, and several plasma reactors are uniformly fixedly connected in the circumference of the support tube.

[0019] Beneficial effects: The spiral groove design in the catalytic decomposition system can extend the residence time of gas in the catalytic decomposition step. During this time, plasma degradation and catalytic reaction work synergistically to achieve complete mineralization of VOCs, solving the problem of incomplete decomposition that may exist in traditional catalytic decomposition methods.

[0020] Furthermore, the screening and adsorption assembly includes several partition blocks fixedly connected to the inner side wall of the cylinder. Each adjacent partition block is provided with a sliding chamber, and each sliding chamber is provided with a sliding block. The two sides of each sliding block are slidably connected to the side wall of the corresponding partition block. Several sliding blocks can form an integral ring wall. A centrifugal drive chamber is provided between the first rotating shaft and the integral ring wall formed by several sliding blocks. Several sieve plates and adsorption plates are provided between the sliding blocks and the inner side wall of the cylinder. One end of each sieve plate is detachably connected to the inner side wall of the cylinder, and the end of each adsorption plate away from the inner side wall of the cylinder is fixedly connected to the corresponding sliding block. Several adsorption plates and sieve plates are arranged alternately from top to bottom.

[0021] Beneficial effects: The adsorption control mechanism forms a variable flow channel by linking the sieve plate and the adsorption plate with the sliding block. This design allows for adjustment of the gas adsorption and sieving treatment time by continuously adjusting the flow area.

[0022] Furthermore, the humidity control assembly includes several humidity sensors and atomizing nozzles located at the top of the separation chamber. The humidity sensors are used to collect the humidity of the gas to be purified, and the atomizing nozzles are all embedded in the inner side wall of the cylinder along the circumference of the first rotating shaft. The atomized liquid outlets of the atomizing nozzles are all facing the output turbine and are opposite to the rotation direction of the output turbine. Several atomizing nozzles and humidity sensors are connected to the control system signals.

[0023] Beneficial effects: The humidity control mechanism is achieved by spraying atomized liquid, which can stabilize the gas humidity within the optimal range.

[0024] Furthermore, the centrifugal drive chamber is provided with several centrifugal speed regulating components. Each centrifugal speed regulating component includes a flexible centrifugal speed regulating plate. The centrifugal speed regulating plate is sleeved and fixed to the outer side wall of the first rotating shaft, and a counterweight is fixedly connected to the top surface of the outer edge of the centrifugal speed regulating plate along the circumference of the first rotating shaft. A speed-regulating rotating ring is rotatably connected to the outer wall of the first rotating shaft. Each sliding block has a vertical groove on the side near the first rotating shaft. A slider is slidably connected in the groove. A spring is provided on the top of each slider. The two ends of the spring are fixedly connected to the top surface of the slider and the top wall of the groove, respectively. Several connecting rods corresponding to the number and position of the sliders are hinged on the speed-regulating rotating ring. The end of the connecting rod away from the speed-regulating rotating ring is hinged to the side wall of the corresponding slider. The top surface of several connecting rods is in contact with the bottom surface of the centrifugal speed regulating plate. The height of the groove is higher than the height of the speed-regulating rotating ring.

[0025] Beneficial effects: The centrifugal speed regulating device utilizes a dynamic balance system composed of elastic centrifugal plates and counterweights. This system converts changes in rotational speed into lateral mechanical displacement of the sliding block. The displacement of the sliding block allows for adjustment of the adsorption and sieving processing time. During operation, the centrifugal speed regulating device can promptly adjust the adsorption time based on changes in gas humidity, ensuring the stability and efficiency of the adsorption effect and reducing the impact of excessively low humidity on the sieving and adsorption efficiency.

[0026] Furthermore, the top of the incineration chamber is connected to several heat-conducting pipes located above the input turbine. The ends of these heat-conducting pipes away from the incineration chamber converge and are fixed together to form a heat exchange pipeline. The heat exchange pipeline includes a first heat exchange pipe and a second heat exchange pipe that are interconnected. The first heat exchange pipe is used to preheat the air intake of the desulfurization tank during the rubber recycling process. The second heat exchange pipe extends through the side wall of the cylinder from the bottom inlet of the spiral groove plate to the top outlet of the spiral groove plate, and then extends through the side wall of the cylinder to the outside of the cylinder.

[0027] Beneficial Effects: This scheme designs a heat recovery system using dual-channel heat exchange tubes, achieving cascaded utilization of high-temperature flue gas. On one hand, it preheats the desulfurization inlet gas, providing favorable conditions for subsequent desulfurization treatment; on the other hand, it maintains the temperature of the catalytic environment, ensuring the normal progress of the catalytic reaction. In this way, the comprehensive utilization rate of waste heat is improved, effectively increasing energy utilization efficiency and reducing production costs compared to traditional single-stage recovery systems.

[0028] Furthermore, the control system includes a humidity control module and a drive module; The humidity control module is used to collect the humidity of the gas to be purified through several humidity sensors and set a safe humidity threshold of 40%. When the detected humidity is <40%, a signal is sent to the drive module; when the detected humidity is ≥40% but ≤60%, no signal is sent; when the detected humidity is >60%, it indicates a purification failure. The drive module is used to receive signals transmitted by the humidity control module, and after receiving the signals, it sends drive signals to several atomizing nozzles.

[0029] Beneficial effects: The intelligent control module establishes a triangular control mechanism based on humidity, rotation speed, and adsorption time. This module comprehensively considers these three key parameters and makes real-time adjustments based on the actual operating conditions of the device. Simultaneously, the safety threshold hierarchical management mechanism further improves system reliability, reduces the system failure rate, and enables the device to operate more intelligently and automatically.

[0030] 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

[0031] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the intelligent device for gas separation and purification in rubber recycling and rubber powder production according to the present invention; Figure 2 This is an axonometric sectional view of the distribution of chambers within the cylinder in an embodiment of the intelligent device for gas separation and purification in rubber recycling and rubber powder production of the present invention. Figure 3 This is an isometric sectional view of the separation chamber in an embodiment of the intelligent device for gas separation and purification in rubber recycling and rubber powder production of the present invention. Figure 4 This is an isometric sectional view of the decomposition catalytic chamber in an embodiment of the intelligent device for gas separation and purification in rubber recycling and rubber powder production of the present invention. Figure 5 This is an isometric sectional view of the adsorption chamber in an embodiment of the intelligent device for gas separation and purification in rubber recycling and rubber powder production of the present invention. Figure 6 This is an isometric view showing the arrangement of centrifugal speed regulating plate and sliding block in an embodiment of the intelligent device for gas separation and purification in rubber recycling and rubber powder production of the present invention.

[0032] The reference numerals in the accompanying drawings include: 1. Cylinder; 101. Separation chamber; 102. Decomposition catalytic chamber; 103. Adsorption chamber; 104. Combustion chamber; 2. Inlet pipe; 3. Outlet; 4. First rotating shaft; 5. Output turbine; 6. Rotating support; 7. Second rotating shaft; 8. Input turbine; 9. Magnetic coupler; 10. Fuel pipe; 11. Electromagnet; 12. Dust collector bag; 13. Humidity sensor; 14. Atomizing nozzle; 15. Spiral groove plate; 16. Catalytic layer; 17. Support pipe; 18. Plasma reactor; 19. Separator block; 20. Sliding chamber; 21. Centrifugal drive chamber; 22. Sliding block; 23. Sieve plate; 24. Adsorption plate; 25. Centrifugal speed regulating plate; 26. Counterweight block; 27. Speed ​​regulating rotating ring; 28. Slide groove; 29. ​​Slider; 30. Spring; 31. Connecting rod; 32. Heat conduction pipe. Detailed Implementation

[0033] 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.

[0034] 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.

[0035] 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.

[0036] The following detailed description illustrates the specific implementation method: Example 1: This embodiment provides an intelligent device for gas separation and purification in rubber recycling and rubber powder production, specifically combined with the attached... Figure 1 and attached Figure 2 As shown, the device includes a cylinder 1, with an air inlet pipe 2 on the bottom side wall and an air outlet 3 on the top. The end of the air inlet pipe 2 away from the cylinder 1 is used to connect to a preparation device for rubber recycling and rubber powder production. The cylinder 1 contains, from bottom to top, interconnected separation chamber 101, decomposition catalytic chamber 102, adsorption chamber 103, and incineration chamber 104. The arrangement of each chamber is described below using the flow of gas to be purified through the cylinder 1 as an example: Firstly, during the rubber powder production process, the gas to be purified may contain metal fragments (such as tire steel wires) and large particles of rubber powder due to crushing. Therefore, the inlet pipe 2 is designed to connect to the bottom of the separation chamber 101 at one end near the cylinder 1. Specifically, this is combined with... Figure 1 and Figure 2 As shown, a transmission assembly is provided at the axis of the cylinder 1. The transmission assembly includes a first rotating shaft 4 rotatably connected to the inner bottom wall of the cylinder 1 via bearings. An output turbine 5 located in the separation chamber 101 is welded onto the first rotating shaft 4. The top end of the first rotating shaft 4 extends into the combustion chamber 104. A rotating bracket 6 welded to the inner side wall of the cylinder 1 is provided in the combustion chamber 104. A second rotating shaft 7 is rotatably connected to the rotating bracket 6 via bearings. An input turbine 8 located in the rotating bracket 6 is welded onto the second rotating shaft 7. The bottom end of the second rotating shaft 7 is aligned with the top end of the first rotating shaft 4. A magnetic coupler 9 is provided between the bottom end of the second rotating shaft 7 and the top end of the first rotating shaft 4. The design of the magnetic coupler 9 enables the first rotating shaft 4 to transmit power through magnetic effect. The rotation drive of the second rotating shaft 7 is transmitted, and due to the characteristics of magnetic coupling, the first rotating shaft 4 can generate a speed difference relative to the second rotating shaft 7. The combustion chamber 104 is provided with a combustion drive assembly for burning, oxidizing and decomposing the residual organic matter in the gas to be purified and recovering heat energy. The combustion drive assembly includes a number of fuel pipes 10 uniformly fixed and connected to the side wall of the combustion chamber 104 along the circumference of the cylinder 1. The body of the fuel pipe 10 is welded to the cylinder 1. One end of each fuel pipe 10 extends into the combustion chamber 104 and is located below the input turbine 8. The open end of the fuel pipe 10 in the combustion chamber 104 faces the input turbine 8. The end of the fuel pipe 10 away from the cylinder 1 is connected to the existing incinerator in the rubber recycling process.

[0037] When hot-pressed gas is ejected from each fuel pipe 10, the ejected hot-pressed gas can drive the input turbine 8 to rotate. The input turbine 8 drives the second rotating shaft 7 to rotate. The rotation of the second rotating shaft 7 drives the first rotating shaft 4 through the magnetic coupler 9, so that the output turbine 5 generates a vortex cyclone in the separation chamber 101. The formation of this vortex cyclone has two functions: first, it can be used to generate negative pressure to draw in the gas to be purified through the air inlet; second, the vortex cyclone utilizes the density difference between gas and particles to separate metal debris (metal debris centrifugally settles to the side wall of the separation chamber 101) and adhesive particles-dust (adhesive particles are retained in the core area of ​​the airflow due to their lower density). The gas and adhesive particles then flow upward.

[0038] Based on the separation of metal debris and adhesive particles, an electromagnet 11 is embedded in the side wall of the separation chamber 101, specifically as follows: Figure 3 As shown, the horizontal cross-sectional area of ​​the separation chamber 101 decreases from bottom to top. At the connection between the separation chamber 101 and the decomposition catalysis chamber 102, a dust collector bag 12 is fixedly connected to the inner wall of the cylinder 1 by a snap-fit ​​structure. A first rotating ring is fixedly attached to the dust collector bag 12 and rotatably connected to the first rotating shaft 4. The electromagnet 11 is designed to attract metal debris and make it adhere to the side wall of the separation chamber 101. The rising airflow velocity gradient formed by the decreasing cross-section causes most of the metal debris to remain on the side wall of the separation chamber 101 under the action of gravity and magnetic force. At the same time, the adhesive powder particles, due to their low density, enter the dust collector bag 12 with the eddy current. The dust is separated by the screening function of the dust collector bag 12 and sent to the bottom collection tank. The whole process achieves non-cross-separation of metal debris and dust particles, avoiding dust escape caused by the interference of the electric field due to the conductivity of metal in traditional cyclone separators.

[0039] The gas to be purified, after being separated by eddy current separation and sieved by the dust collector bag 12, passes through the top of the separation chamber 101. A humidity control component is located at the top of the separation chamber 101 and is signal-connected to a control system. The humidity control component includes several humidity sensors 13 and atomizing nozzles 14, specifically as follows... Figure 3 As shown, the humidity sensor 13 is used to collect the humidity of the gas to be purified. The atomizing nozzle 14 is preferably a JAU-type air atomizing nozzle with automatic control function. Several atomizing nozzles 14 and the humidity sensor 13 are all connected to the control system signal. The humidity sensor 13 monitors the humidity of the gas to be purified in real time, transmits the signal to the control system for analysis, and then controls the JAU-type air atomizing nozzle to dynamically adjust the spray volume to stabilize the gas humidity within a safe range, ensuring the effectiveness of subsequent catalytic oxidation reaction and adsorption, avoiding the risk of static electricity accumulation caused by excessively low humidity, comprehensively improving purification efficiency and extending equipment life.

[0040] After humidity detection and adjustment, the gas to be purified flows into the decomposition catalytic chamber 102. The decomposition catalytic chamber 102 is equipped with a catalytic decomposition component for degrading organic waste gas and converting sulfur-containing components. The catalytic decomposition component includes a spiral groove plate 15 that is detachably connected to the inner wall of the cylinder 1 via a snap-fit ​​mechanism. Specifically, as shown... Figure 4 As shown, the spiral groove plate 15 is designed to guide the flow path of the gas to be purified, thereby increasing the flow time. A catalyst layer 16 is covered on the spiral groove plate 15, preferably a MnO2-CeO2 catalyst layer. A support tube 17 is provided on the inner edge of the spiral groove plate 15. The outer side of the support tube 17 is welded to the inner wall of the cylinder 1 via a crossbar. A through hole corresponding to the first rotating shaft 4 is opened at the axis of the support tube 17. Several plasma reactors 18 are uniformly clamped along the circumference inside the support tube 17. The plasma reactors 18 preferably employ a dielectric barrier. A low-temperature plasma reactor 18 generates high-energy electrons through dielectric barrier discharge (DBD). When the gas to be purified flows through the spiral groove plate 15, the plasma reactor 18 excites gas molecules to generate high-energy electrons and active free radicals under an electric field through dielectric barrier discharge (DBD), directly cracking benzene series compounds and oxidizing H2S to elemental sulfur. The MnO2-CeO2 catalyst layer improves the degradation rate of benzene series compounds and the conversion rate of H2S. At the same time, the MnO2-CeO2 catalyst can reduce the generation of SO2, thereby avoiding secondary SO2 pollution.

[0041] The gas purified through catalysis and degradation enters the adsorption chamber 103. The adsorption chamber 103 is equipped with a sieving adsorption assembly for adsorbing and treating volatile organic compounds in the gas to be purified. The sieving adsorption assembly includes several partition blocks 19 integrally formed with the inner wall of the cylinder 1. Specifically, in conjunction with… Figure 5 and Figure 6 As shown, each adjacent partition block 19 is provided with a sliding chamber 20, and each sliding chamber 20 is provided with a sliding block 22. The two sides of the sliding block 22 are slidably connected to the side wall of the corresponding partition block 19. Several sliding blocks 22 can form an integral ring. The first rotating shaft 4 and the integral formed by several sliding blocks 22 are provided with a centrifugal drive chamber 21. Taking one of the sliding chambers 20 as an example, several sieve plates 23 and adsorption plates 24 are provided between the sliding block 22 and the inner side wall of the cylinder 1. One end of each sieve plate 23 is slidably connected to the inner side wall of the cylinder 1. Disassembly and connection: the end of the adsorption plate 24 away from the inner wall of the cylinder 1 is welded to the corresponding sliding block 22. Several adsorption plates 24 and sieve plates 23 are arranged alternately from top to bottom. With this design, when the sliding block 22 slides towards the inner wall of the cylinder 1, the flow area between several adsorption plates 24 and sieve plates 23 decreases, increasing the flow time of the gas to be purified through several sieve plates 23 and adsorption plates 24. Conversely, when the sliding block 22 slides away from the inner wall of the cylinder 1, the flow rate of the gas to be purified is accelerated.

[0042] The special feature is that whether the humidity of the gas to be purified is too high (>60%) or too low (<40%), its adsorption efficiency will be reduced, thereby increasing the risk of harmful gas residue. To address this, the atomizing spray system with humidity detection is designed so that the atomizing liquid outlet of the atomizing nozzle 14 faces the output turbine 5 and is opposite to the rotation direction of the output turbine 5. That is, when the atomizing nozzle 14 sprays out atomized liquid, the atomized liquid will impact the blades of the output turbine 5, causing the rotation of the output turbine 5 to be obstructed. Due to the design of the magnetic coupler 9, the rotational resistance of the output turbine 5 will not affect the rotation of the input turbine 8 or the transmission of the rotation of the input turbine 8. In other words, the spraying of atomized liquid can reduce the rotational speed of the output turbine 5.

[0043] Based on this, the centrifugal drive chamber 21 is designed to include several centrifugal speed regulating components, each of which includes a centrifugal speed regulating plate 25 made of flexible material, specifically as follows: Figure 6 As shown, the centrifugal speed regulating plate 25 is sleeved and fixed to the outer wall of the first rotating shaft 4, and a counterweight 26 is fused to the top surface of the outer edge of the centrifugal speed regulating plate 25 along the circumference of the first rotating shaft 4. Due to the design of the counterweight 26, when the first rotating shaft 4 rotates, the counterweight 26 swings circumferentially along the first rotating shaft 4. According to the relationship between centrifugal effect and rotational speed, the faster the counterweight 26 swings, the greater its centrifugal force. The counterweight 26 shows an upward movement trend, thereby driving the height of the edge of the centrifugal speed regulating plate 25 to rise. When the rotational speed of the first rotating shaft 4 increases, the edge height of the centrifugal speed regulating plate 25 increases, causing the centrifugal speed regulating plate 25 to swing upward as a whole. Conversely, when the rotational speed of the first rotating shaft 4 decreases, the centrifugal speed regulating plate 25 swings downward as a whole.

[0044] A speed-regulating rotating ring 27 is rotatably connected to the outer wall of the first rotating shaft 4. Vertical grooves 28 are provided on the side of the sliding block 22 closest to the first rotating shaft 4. Sliding blocks 29 are slidably connected within each groove 28. Springs 30 are provided on the top of each sliding block 29, with both ends of the springs 30 fused to the top surface of the sliding block 29 and the top wall of the groove 28, respectively. Several connecting rods 31, corresponding to the number and position of the sliding blocks 29, are hinged to the speed-regulating rotating ring 27. The ends of the connecting rods 31 furthest from the speed-regulating rotating ring 27 are hinged to the side wall of the corresponding sliding block 29. The top surfaces of the connecting rods 31 are in contact with the bottom surface of the centrifugal speed-regulating plate 25. The height of the groove 28 is higher than the height of the speed-regulating rotating ring 27, therefore the initial state of the connecting rods 31 is an upward-sloping posture. When the centrifugal speed-regulating plate 25 swings upward, the counterweight 26 moves away from the centrifugal speed-regulating plate 25. When the connecting rod 31 moves upward, the height limiting force of the connecting rods 31 on the slider 29 decreases accordingly. At this time, the spring 30 will generate a downward elastic restoring force on the slider 29, and each slider 29 will slide downward. Due to the presence of the connecting rod 31 and the fixed lateral position of the first rotating shaft 4, the downward sliding displacement of each slider 29 will drive the corresponding sliding block 22 to slide closer to the inner wall of the cylinder 1, which will reduce the flow area generated by the overlapping of the sieve plates 23 and the adsorption plate 24, thereby increasing the flow time of the gas to be purified. Conversely, when the centrifugal speed regulating plate 25 swings downward, it will cause the sliding block 22 to slide closer to the first rotating shaft 4, thereby increasing the flow area generated by the overlapping of the sieve plates 23 and the adsorption plate 24 and increasing the flow speed of the gas to be purified. Ultimately, when the atomizing nozzle 14 is activated (humidity of the gas to be purified <40%), the rotation speed of the first rotating shaft 4 is reduced, increasing the adsorption and purification time of the gas to be purified and reducing the risk of incomplete adsorption; while when the atomizing nozzle 14 is deactivated (humidity of the gas to be purified ≥40%), the adsorption and purification time of the gas to be purified is reduced, improving purification efficiency.

[0045] Furthermore, when the atomizing head 14 sprays atomized liquid that affects the rotational speed of the output turbine 5, the negative pressure generated by the rotation of the output turbine 5 will also be affected accordingly. Correspondingly, the flow velocity of the gas within the separation chamber 101 will change, thus the impact force on the dust collector bag 12 from the separated gas will change accordingly, causing the dust collector bag 12 to bulge and contract. Since some solid impurity particles will adhere to the inner surface of the dust collector bag 12, when too many impurity particles accumulate, the air permeability of the dust collector bag 12 will inevitably be reduced. This design, through the shape change of the dust collector bag 12, shakes off the solid impurity particles attached inside, ensuring gas flow within the cylinder 1 and improving the gas purification efficiency.

[0046] The reduced negative pressure generated by the output turbine 5 decreases the gas flow velocity inside the cylinder 1, thereby increasing the processing time of the purified gas in each chamber, including extending the time for catalytic degradation of the gas and improving purification efficiency.

[0047] Example 2: As attached Figure 1 and Figure 4 As shown, the difference from Embodiment 1 is that the top of the combustion chamber 104 is connected to several heat-conducting pipes 32 located above the input turbine 8. The ends of these heat-conducting pipes 32 away from the combustion chamber 104 converge and are fixed together to form a heat exchange pipe. This heat exchange pipe includes a first heat exchange pipe and a second heat exchange pipe that are interconnected. The first heat exchange pipe is placed in the rubber recycling reactor to preheat the desulfurization tank intake gas during the rubber recycling process. The second heat exchange pipe penetrates the side wall of the cylinder 1, extending from the bottom inlet of the spiral groove plate 15 to the top outlet of the spiral groove plate 15, and then extends through the side wall of the cylinder 1 to the outside of the cylinder 1. This design utilizes the waste heat within the combustion chamber 104 to supply preheating to the reactor and heating to the catalyst environment via the first and second heat exchange pipes, respectively, achieving cascaded energy utilization. Furthermore, the outlet of the second heat exchange pipe can be designed to connect to the incinerator, allowing the purified cracked gas to be reused as fuel, reducing the fuel consumption of the incinerator.

[0048] Example 3: The difference from Embodiment 2 is that the control system includes a humidity control module and a drive module.

[0049] The humidity control module collects the humidity of the gas to be purified through several humidity sensors 13 and sets a safe humidity threshold of 40%. When the detected humidity is <40%, a signal is sent to the drive module; when the detected humidity is ≥40% but ≤60%, no signal is sent; when the detected humidity is >60%, it indicates a purification failure.

[0050] The drive module receives the signal transmitted by the humidity control module, and after receiving the signal, sends drive signals to several atomizing nozzles 14 respectively.

[0051] experiment: Experimental objective: To verify the ability of the novel gas purification device to deeply degrade toxic gases (such as benzene compounds and H2S) and remove complex organic compounds (such as polycyclic aromatic hydrocarbons (PAHs), and to solve the technical defects of traditional technologies such as secondary pollution, low treatment efficiency and high energy consumption. Experimental steps: 1. Setup of the experimental and control groups: Experimental group: The purification device designed in this scheme was used to simulate rubber recycling in the rubber preparation process; Control group: Rubber was recycled during the preparation process using a traditional condenser purifier.

[0052] Simulated exhaust gas: Prepare a mixed gas containing benzene (200ppm), toluene (150ppm), H2S (300ppm), and naphthalene (represented by PAHs, 50ppm), with a flow rate set at 10m³ / h. 3 / h, temperature 80℃.

[0053] 2. Experimental Procedure: Pretreatment stage: Both sets of devices are run for 30 minutes to preheat to a stable state.

[0054] Gas injection: Simulated waste gas was continuously introduced into the two sets of devices for 2 hours, and the pollutant concentration at the outlet of each chamber was monitored in real time.

[0055] 3. Key parameter recording: Separation chamber 101: Separation efficiency of metal scraps (tire wires) and dust.

[0056] Decomposition catalytic chamber 102: Degradation rate of benzene, toluene, H2S and SO2 generation.

[0057] Adsorption chamber 103: Adsorption rate of PAHs.

[0058] Incineration chamber 104: residual organic matter concentration and heat recovery efficiency.

[0059] Energy consumption monitoring: Record the total energy consumption (electricity and fuel consumption) of the two sets of devices.

[0060] Experimental conclusion: In the experimental group, the catalytic decomposition chamber, through the synergistic effect of plasma (DBD) and the MnO2-CeO2 catalyst, achieved a benzene series degradation rate >97%, an H2S conversion rate >96%, and SO2 generation of only 5 ppm, demonstrating that it can avoid the secondary pollution problems caused by traditional condensation methods. In contrast, the control group, lacking a catalytic decomposition module, experienced a high H2S oxidation rate to SO2 (up to 30%) and a benzene series removal rate of less than 60%.

[0061] The adsorption chamber of the experimental group was dynamically adjusted through a sieve-adsorption plate design, resulting in a PAHs adsorption rate of >99%, while the control group had no targeted adsorption structure and PAHs were not effectively captured.

[0062] The experimental group used waste heat from incineration to drive a magnetic separation turbine, reducing total energy consumption by 47% and achieving a heat recovery efficiency of 75%, thus verifying the effectiveness of the energy self-consistent design.

[0063] 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. An intelligent device for gas separation and purification in rubber recycling and rubber powder production, comprising a cylinder (1), an air inlet pipe (2) provided on the bottom side wall of the cylinder (1), and an air outlet (3) provided on the top of the cylinder (1), characterized in that, The cylinder (1) includes, from bottom to top, interconnected separation chamber (101), decomposition catalytic chamber (102), adsorption chamber (103) and incineration chamber (104). The separation chamber (101) is equipped with an eddy current magnetic separation component, which is used to separate dust and metal particulate impurities by mass separation and magnetic separation of the gas to be purified using eddy current and electromagnetic effects, respectively. The decomposition catalytic chamber (102) is equipped with a catalytic decomposition component for degrading organic waste gas and converting sulfur-containing components. The adsorption chamber (103) is equipped with a sieving adsorption component for adsorbing and treating volatile organic compounds in the gas to be purified. The incineration chamber (104) is equipped with a combustion drive component for incinerating and oxidizing the residual organic compounds in the gas to be purified and recovering heat energy. A transmission component is provided at the shaft center of the cylinder (1). During the operation of the combustion drive component, the heat pressure generated by combustion is converted into rotational driving force by the transmission component and transmitted to the eddy current magnetic separation component to replace the driving source. A humidity adjustment component is also provided between the separation chamber (101) and the decomposition catalysis chamber (102) for detecting and adjusting the humidity of the gas to be purified. The humidity adjustment component is connected to the control system. A centrifugal adjustment component is provided on the sieving adsorption component. When the humidity adjustment component is started, it will affect the rotation speed of the eddy current magnetic separation component. After being transmitted by the transmission component, the change in rotation speed is received by the centrifugal speed adjustment component to adjust the gas flow time in the sieving adsorption component.

2. The intelligent device for gas separation and purification in rubber recycling and rubber powder production according to claim 1, characterized in that, The transmission assembly includes a first rotating shaft (4) rotatably connected to the inner bottom wall of the cylinder (1) via a bearing. The top end of the first rotating shaft (4) extends into the combustion chamber (104). The combustion chamber (104) is provided with a rotating bracket (6) welded to the inner side wall of the cylinder (1). A second rotating shaft (7) is rotatably connected inside the rotating bracket (6). An input turbine (8) located inside the rotating bracket (6) is sleeved and fixed on the second rotating shaft (7). The bottom end of the second rotating shaft (7) is aligned with the top end of the first rotating shaft (4). A magnetic coupler (9) is provided between the bottom end of the second rotating shaft (7) and the top end of the first rotating shaft (4). The first rotating shaft (4) and the second rotating shaft (7) are connected to each other through the magnetic coupler (9).

3. The intelligent device for gas separation and purification in rubber recycling and rubber powder production according to claim 2, characterized in that, The combustion drive assembly includes several fuel pipes (10) that are uniformly fixed and connected to the side wall of the combustion chamber (104) along the circumference of the cylinder (1). The bodies of the fuel pipes (10) are all fixedly connected to the cylinder (1). One end of each fuel pipe (10) extends into the combustion chamber (104) and is located below the input turbine (8). The open ends of the fuel pipes (10) in the combustion chamber (104) all face the input turbine (8).

4. The intelligent device for gas separation and purification in rubber recycling and rubber powder production according to claim 3, characterized in that, The eddy current magnetic separation assembly includes an electromagnet (11) embedded in the side wall of the separation chamber (101). A dust collector bag (12) is fixedly connected to the inner side wall of the cylinder (1) at the connection between the separation chamber (101) and the decomposition catalysis chamber (102). The inner edge of the dust collector bag (12) is rotatably connected to the first rotating shaft (4).

5. The intelligent device for gas separation and purification in rubber recycling and rubber powder production according to claim 4, characterized in that, The catalytic decomposition assembly includes a spiral groove plate (15) detachably connected to the inner wall of the cylinder (1). The spiral groove plate (15) is covered with a catalytic layer (16). A support tube (17) is provided on the inner edge of the spiral groove plate (15). The outer side of the support tube (17) is fixedly connected to the inner wall of the cylinder (1). A through hole corresponding to the first rotating shaft (4) is opened at the axis of the support tube (17). Several plasma reactors (18) are uniformly fixedly connected along the circumference of the support tube (17).

6. The intelligent device for gas separation and purification in rubber recycling and rubber powder production according to claim 5, characterized in that, The sieving and adsorption assembly includes several partition blocks (19) fixedly connected to the inner wall of the cylinder (1). Each adjacent partition block (19) is provided with a sliding chamber (20). Each sliding chamber (20) is provided with a sliding block (22). Each sliding block (22) is slidably connected to the side wall of the corresponding partition block (19) on both sides. Several sliding blocks (22) can form an integral ring wall. The first rotating shaft (4) and the integral ring wall formed by several sliding blocks (22) are provided with a centrifugal drive chamber (21). Several sieve plates (23) and adsorption plates (24) are provided between the sliding blocks (22) and the inner wall of the cylinder (1). One end of each sieve plate (23) is detachably connected to the inner wall of the cylinder (1). The end of each adsorption plate (24) away from the inner wall of the cylinder (1) is fixedly connected to the corresponding sliding block (22). Several adsorption plates (24) and sieve plates (23) are arranged alternately from top to bottom.

7. The intelligent device for gas separation and purification in rubber recycling and rubber powder production according to claim 2, characterized in that, The humidity control assembly includes several humidity sensors (13) and atomizing nozzles (14) located at the top of the separation chamber (101). The humidity sensors (13) are used to collect the humidity of the gas to be purified. The atomizing nozzles (14) are embedded in the inner wall of the cylinder (1) along the circumference of the first rotating shaft (4). The atomized liquid outlets of the atomizing nozzles (14) are all facing the output turbine (5) and are opposite to the rotation direction of the output turbine (5). Several atomizing nozzles (14) and humidity sensors (13) are connected to the control system signal.

8. The intelligent device for gas separation and purification in rubber recycling and rubber powder production according to claim 7, characterized in that, The centrifugal drive chamber (21) is provided with several centrifugal speed regulating components. Each centrifugal speed regulating component includes a flexible centrifugal speed regulating plate (25). The centrifugal speed regulating plate (25) is sleeved and fixed on the outer side wall of the first rotating shaft (4), and a counterweight (26) is fixedly connected to the top surface of the outer edge of the centrifugal speed regulating plate (25) along the circumference of the first rotating shaft (4). The outer wall of the first rotating shaft (4) is rotatably connected to a speed regulating rotating ring (27). Each sliding block (22) has a vertical groove (28) on the side near the first rotating shaft (4). A slider (29) is slidably connected in the groove (28). A spring (30) is provided on the top of each slider (29). Both ends of the spring (30) are fixedly connected to the top surface of the slider (29) and the top wall of the groove (28). Several connecting rods (31) corresponding to the number and position of the sliders (29) are hinged on the speed regulating rotating ring (27). The end of the connecting rod (31) away from the speed regulating rotating ring (27) is hinged to the side wall of the corresponding slider (29). The top surface of several connecting rods (31) is in contact with the bottom surface of the centrifugal speed regulating plate (25). The height of the groove (28) is higher than the height of the speed regulating rotating ring (27).

9. The intelligent device for gas separation and purification in rubber recycling and rubber powder production according to claim 8, characterized in that, The top of the combustion chamber (104) is connected to several heat-conducting pipes (32) located above the input turbine (8). The ends of the heat-conducting pipes (32) away from the combustion chamber (104) are joined together and fixed into a whole heat exchange pipe. The heat exchange pipe includes a first heat exchange pipe and a second heat exchange pipe that are connected to each other. The first heat exchange pipe is used to preheat the desulfurization tank air intake during the rubber recycling process. The second heat exchange pipe passes through the side wall of the cylinder (1) and extends from the bottom inlet of the spiral groove plate (15) to the top outlet of the spiral groove plate (15), and then passes through the side wall of the cylinder (1) and extends to the outside of the cylinder (1).

10. The intelligent device for gas separation and purification in rubber recycling and rubber powder production according to claim 9, characterized in that, The control system includes a humidity control module and a drive module; The humidity control module is used to collect the humidity of the gas to be purified through several humidity sensors (13) and set the safe humidity threshold value to 40%. When the humidity is detected to be <40%, a signal is sent to the drive module; when the humidity is detected to be ≥40% but ≤60%, no signal is sent; when the humidity is detected to be >60%, it indicates a purification failure. The drive module is used to receive signals transmitted by the humidity control module. After receiving the signals, it sends drive signals to several atomizing nozzles (14).

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