A rubber tire production exhaust gas purification system

Abstract

The application relates to the technical field of waste gas treatment, in particular to a rubber tire production waste gas purification system which comprises a pretreatment module used for pretreating waste gas to be treated; an adsorption and concentration module which comprises a first-stage adsorption and concentration unit and a second-stage adsorption and concentration unit, the first-stage adsorption and concentration unit is in communication with the pretreatment module and the second-stage adsorption and concentration unit respectively, the first-stage adsorption and concentration unit is used for carrying out primary adsorption and concentration on the pretreated waste gas, the second-stage adsorption and concentration unit is used for carrying out deep adsorption on the waste gas after the primary adsorption and concentration, and the waste gas desorbed from the second-stage adsorption and concentration unit can be backflowed to the pretreatment module; and a burning module which is in communication with the first-stage adsorption and concentration unit and is used for burning the waste gas desorbed from the first-stage adsorption and concentration unit. The application has the effect of long-term, stable and efficient purification treatment of rubber tire waste gas.

Description

Technical Field

[0001] This application relates to the technical field of waste gas treatment, and in particular to a waste gas purification system for rubber tire production. Background Technology

[0002] Currently, the rubber tire industry generates a large amount of industrial waste gas during production. These waste gases have multiple sources and complex compositions. For example, volatile organic compounds (VOCs) of varying concentrations are generated during processes such as unloading, discharge, and rubber sheet cooling. Based on their characteristics, these waste gases can be broadly categorized into low-concentration, high-volume waste gases and high-concentration waste gases with large concentration fluctuations. According to the current "Emission Standard of Pollutants for Rubber Products Industry" (GB 27632-2011), the emission limit for non-methane total hydrocarbons (NMHC) is extremely high, requiring it to be less than 10 mg / m³, a standard far stricter than most other industries.

[0003] In related technologies, the low-concentration organic waste gas commonly found in the rubber tire industry has historically been treated with a low-temperature plasma method. This method generates a large number of high-energy electrons under a high-voltage electric field, which bombard the organic molecules in the waste gas, causing them to ionize, dissociate, and oxidize, thereby achieving purification. The main considerations for choosing this technology are its relatively simple equipment, low initial investment cost, and ability to operate at room temperature and pressure.

[0004] Regarding the aforementioned technologies: viscous substances such as tar in the exhaust gas easily adhere to the surface of the electrode plates in plasma equipment, gradually accumulating to form an insulating or semi-insulating contamination layer. This contamination layer severely weakens the electric field strength and disrupts the uniformity of the discharge, directly leading to a significant decrease in purification efficiency and extreme instability. Especially during fluctuations in production conditions, there is a high risk of exceeding emission standards. To restore efficiency, frequent shutdowns for electrode plate cleaning are necessary, which not only severely impacts production continuity but also shortens the equipment's lifespan due to repeated cleaning. Therefore, how to achieve long-term, stable, and efficient purification of rubber tire exhaust gas containing viscous pollutants such as tar has become a pressing technical problem to be solved in this field. Summary of the Invention

[0005] In order to achieve long-term, stable and efficient purification of exhaust gas from rubber tire production, this application provides a rubber tire production exhaust gas purification system.

[0006] This application provides a waste gas purification system for rubber tire manufacturing, which adopts the following technical solution:

[0007] A rubber tire manufacturing waste gas purification system includes:

[0008] The pretreatment module is used to pretreat the waste gas to be treated;

[0009] The adsorption concentration module includes a primary adsorption concentration unit and a secondary adsorption concentration unit. The primary adsorption concentration unit is connected to the pretreatment module and the secondary adsorption concentration unit respectively. The primary adsorption concentration unit is used to perform primary adsorption concentration on the pretreated waste gas. The secondary adsorption concentration unit is used to perform deep adsorption on the waste gas after primary adsorption concentration. The waste gas desorbed from the secondary adsorption concentration unit can be returned to the pretreatment module.

[0010] The incineration module is connected to the primary adsorption and concentration unit, and the incineration module is used to incinerate the waste gas desorbed from the primary adsorption and concentration unit.

[0011] By adopting the above technical solution, the pretreatment module can pre-treat the waste gas to be treated, removing impurities and large particulate dust, providing more suitable waste gas conditions for subsequent adsorption and concentration treatment. The primary adsorption and concentration unit performs initial adsorption and concentration on the pre-treated waste gas, which can initially adsorb pollutants such as organic matter in the waste gas and reduce the concentration of pollutants in the waste gas. The secondary adsorption and concentration unit performs deep adsorption on the waste gas after primary adsorption and concentration, further removing pollutants in the waste gas, making the waste gas more thoroughly purified. The waste gas desorbed from the secondary adsorption and concentration unit can be returned to the pretreatment module for further treatment, improving the purification efficiency of the waste gas. The incineration module incinerates the high-concentration waste gas desorbed from the primary adsorption and concentration unit, which can harmlessly treat the pollutants such as organic matter in the waste gas, making the waste gas meet the emission standards, thus achieving long-term, stable and efficient purification treatment of rubber tire waste gas.

[0012] Optionally, it also includes a heat exchange module, which is connected to the incineration module and the secondary adsorption concentration unit respectively. The primary adsorption concentration unit includes a primary zeolite rotor, a first pipeline, a second pipeline, a third pipeline and a fourth pipeline. The primary zeolite rotor is provided with an adsorption zone, a cooling zone and a desorption zone respectively.

[0013] The first pipeline is connected to the pretreatment module and the adsorption zone, the adsorption zone is connected to the secondary adsorption concentration unit, the second pipeline is connected to the first pipeline and the cooling zone, the third pipeline is connected to the cooling zone and the heat exchange module, the fourth pipeline is connected to the desorption zone and the heat exchange module, the desorption zone is connected to the incineration module, and a primary desorption fan is provided between the incineration module and the desorption zone.

[0014] By adopting the above technical solution, the heat exchange module is connected to the incineration module and the secondary adsorption concentration unit respectively. The heat generated by the incineration module can be used to meet the desorption temperature rise requirements of the secondary adsorption concentration unit. The primary zeolite rotor is equipped with an adsorption zone, a cooling zone and a desorption zone. With the first, second, third and fourth pipelines, the waste gas can pass through the adsorption, cooling and high-temperature desorption processes in sequence. The primary zeolite rotor performs primary adsorption concentration on the waste gas, and the secondary adsorption concentration unit performs deep adsorption on the waste gas after primary adsorption concentration. The desorption zone is connected to the incineration module and is equipped with a primary desorption fan, which can send the waste gas desorbed by the primary zeolite rotor to the incineration module for incineration, so as to achieve efficient purification treatment of the waste gas.

[0015] Optionally, the adsorption zone on the primary zeolite rotor is connected to a transfer pipeline, and the secondary adsorption concentration unit includes a secondary zeolite rotor, a sixth pipeline, and a seventh pipeline. The secondary zeolite rotor has a similar structure to the primary zeolite rotor. The transfer pipeline is connected to the adsorption zone on the secondary zeolite rotor, and a branch pipe is connected to the transfer pipeline. The branch pipe is connected to the cooling zone on the secondary zeolite rotor. The sixth pipeline is connected to the third pipeline and the cooling zone on the secondary zeolite rotor, respectively. The seventh pipeline is connected to the fourth pipeline and the desorption zone on the secondary zeolite rotor, respectively.

[0016] By adopting the above technical solution, the primary zeolite rotor adsorption zone is connected to the secondary zeolite rotor adsorption zone through a transfer pipeline. This allows the waste gas, after primary adsorption and concentration by the primary zeolite rotor, to enter the secondary zeolite rotor for deep adsorption, thereby improving the waste gas purification effect. The branch pipes on the transfer pipeline connect to the secondary zeolite rotor cooling zone, and the sixth pipe connects to the third pipe and the secondary zeolite rotor cooling zone, while the seventh pipe connects to the fourth pipe and the secondary zeolite rotor desorption zone. This enables the cooling and desorption operations of the secondary zeolite rotor, ensuring its normal operation and continuous adsorption capacity, and further improving the purification efficiency and stability of the entire waste gas purification system.

[0017] Optionally, a fifth pipeline is provided between the third pipeline and the fourth pipeline, and an eighth pipeline is provided between the sixth pipeline and the seventh pipeline. Control valves are respectively provided on the third pipeline, the fourth pipeline, the fifth pipeline, the sixth pipeline, the seventh pipeline, and the eighth pipeline.

[0018] By adopting the above technical solution, a fifth pipeline is installed between the third and fourth pipelines, and an eighth pipeline is installed between the sixth and seventh pipelines. Control valves are installed on each of these pipelines, allowing for flexible adjustment of the gas flow rate and direction in each pipeline. When it is necessary to adjust the cooling or desorption process of the first-stage and second-stage zeolite rotors, the gas flow path and flow rate can be changed by controlling the control valves on the corresponding pipelines to meet the cooling and desorption requirements of the rotors under different operating conditions.

[0019] Optionally, a reflux pipe is connected to the desorption zone of the secondary zeolite rotor, the reflux pipe is connected to the pretreatment module, and a secondary desorption fan and an exhaust valve are respectively installed on the reflux pipe.

[0020] By adopting the above technical solution, the return pipe connected to the secondary zeolite rotor desorption zone is connected to the pretreatment module. Under the action of the secondary desorption fan, the waste gas desorbed by the secondary zeolite rotor can be returned to the pretreatment module for further treatment. During this process, the exhaust valve can control the emission of the returned waste gas. The return treatment allows the waste gas, which has already undergone adsorption and concentration, to pass through the pretreatment module, the primary adsorption and concentration unit, and the secondary adsorption and concentration unit again, further improving the purification level of the waste gas, reducing the content of pollutants in the waste gas, thereby improving the purification efficiency of the entire waste gas purification system and helping the waste gas to stably meet emission standards.

[0021] Optionally, the secondary adsorption and concentration unit includes a zeolite ring and a connector. The zeolite ring is coaxially sleeved on the outside of the primary zeolite rotor. The zeolite ring is fixedly connected to the primary zeolite rotor through the connector. The zeolite ring is also provided with an adsorption zone, a cooling zone and a desorption zone, which are arranged one-to-one with the adsorption zone, cooling zone and desorption zone on the primary zeolite rotor.

[0022] By adopting the above technical solution, the zeolite ring is coaxially sleeved on the outside of the first-stage zeolite rotor and fixedly connected by connectors. The adsorption zone, cooling zone, and desorption zone of both are set in a one-to-one correspondence, allowing both to be driven by a single drive system. This reduces the use of drive equipment and lowers system cost and complexity. At the same time, this coaxial arrangement and corresponding partitioning method allows the exhaust gas to flow orderly between the first-stage zeolite rotor and the zeolite ring, passing through the adsorption zones of both for more thorough adsorption, thus improving the adsorption and purification effect of the exhaust gas. Furthermore, synchronous and efficient operation can be achieved during the cooling and desorption processes, ensuring the stability and efficiency of the system operation and further improving the overall performance of the exhaust gas purification system.

[0023] Optionally, the secondary adsorption and concentration unit further includes a guide plate assembly, which includes an end panel and radial baffles. The shape of the end panel matches the end face contour of the zeolite ring and the primary zeolite rotor. The radial baffles are disposed on the end panel and radiate outward from the center region of the end panel. The radial baffles can divide the circular cross-section formed by the combination of the zeolite ring and the primary zeolite rotor into an adsorption zone, a desorption zone, and a cooling zone. The second pipeline is connected to the cooling zone of the zeolite ring through the end panel, and the fourth pipeline is connected to the desorption zone of the zeolite ring through the end panel. The exhaust gas can flow radially within the primary zeolite rotor and the zeolite ring.

[0024] By adopting the above technical solution, the shape of the end panel matches the end face contours of the zeolite ring and the first-stage zeolite rotor, making the structure more adaptable and conducive to the stable operation of the system. Radial baffles radiate outward from the center of the end panel, dividing the circular cross-section formed by the zeolite ring and the first-stage zeolite rotor into adsorption, desorption, and cooling zones, clearly defining different functional areas and making the waste gas treatment process more orderly. The second pipeline connects to the cooling zone of the zeolite ring through the end panel, and the fourth pipeline connects to the desorption zone of the zeolite ring through the end panel, ensuring smooth flow of cooling air and desorbed gas. The waste gas can flow radially within the first-stage zeolite rotor and zeolite ring. This flow pattern increases the contact area and contact time between the waste gas and the adsorption medium, improving adsorption efficiency and thus enabling more thorough purification of the waste gas. Ultimately, this is beneficial for the efficient treatment and stable emission compliance of waste gas from rubber tire production.

[0025] Optionally, the incineration module includes a shell and a burner. The shell contains a plurality of heat storage chambers, each containing a heat storage layer. The shell also contains a combustion chamber, which is connected to the plurality of heat storage chambers. The burner is mounted on the shell and extends into the combustion chamber.

[0026] The primary adsorption and concentration unit is connected to a switching component. The end of the switching component away from the primary adsorption and concentration unit is connected to a plurality of heat storage chambers. The switching component is used to sequentially supply gas to and purge the plurality of heat storage chambers.

[0027] By adopting the above technical solution, multiple heat storage chambers are set inside the shell, and each heat storage chamber contains a heat storage layer. The heat storage layer can store heat. When the exhaust gas enters the combustion chamber through the heat storage chamber, the heat stored in the heat storage layer can preheat the exhaust gas, allowing it to reach the combustion temperature more quickly and improving combustion efficiency. At the same time, the heat generated by combustion in the combustion chamber can be absorbed and stored by the heat storage layer, realizing the recycling of heat and reducing energy consumption. The switching component is connected to the primary adsorption and concentration unit and multiple heat storage chambers, enabling sequential gas supply and purging of multiple heat storage chambers. This allows the heat storage chambers to alternately perform the processes of heat storage, heat release, and purging, ensuring that the heat storage layer continuously and effectively performs its heat storage and heat release functions. This further improves the operating efficiency and stability of the entire incineration module, ensuring that the exhaust gas is fully oxidized and decomposed in the combustion chamber, achieving the goal of highly efficient exhaust gas purification.

[0028] Optionally, it also includes an exhaust module, which is connected to the secondary adsorption and concentration unit and the multiple heat storage chambers respectively. The switching assembly includes a main gas supply pipe, a main purge pipe and a fan. One end of the main gas supply pipe is connected to the primary adsorption and concentration unit, and the other end of the main gas supply pipe is provided with a gas supply branch pipe. One end of the main purge pipe is connected to the main gas supply pipe, and the other end of the main purge pipe is provided with a purge branch pipe. An air intake lift valve is provided on the main gas supply branch pipe, and a purge valve is provided on the purge branch pipe.

[0029] The number of gas supply branch pipes, purging branch pipes and heat storage chambers are equal and they are arranged in a one-to-one correspondence. The fan is installed on the gas supply main pipe and located between the purging main pipe and the gas supply branch pipe. A flame arrester is installed on the gas supply main pipe and the flame arrester is located between the fan and the gas supply branch pipe.

[0030] By adopting the above technical solution, the exhaust module is connected to the secondary adsorption and concentration unit and multiple regenerators, allowing the treated exhaust gas from the secondary adsorption and concentration unit and the purified exhaust gas from the regenerators to be discharged. The main gas supply pipe is connected to the primary adsorption and concentration unit, enabling the high-concentration exhaust gas desorbed from the primary adsorption and concentration unit to be transported to the regenerators. The inlet lift valve on the gas supply branch pipe can control the exhaust gas entering different regenerators. Furthermore, the main purging pipe and purging branch pipe, in conjunction with the purging valve, can perform negative pressure purging of the regenerators, drawing some residual unpurified exhaust gas temporarily stored in the regenerators to the front end of the blower to mix with the high-concentration zeolite rotor desorbed exhaust gas before entering the furnace for incineration, improving the purification effect. This facilitates the process of multiple regenerators taking turns to store, release, and purge heat. At the same time, a flame arrester is installed between the blower and the gas supply branch pipe to effectively prevent backfire and ensure the safety of the rotor system.

[0031] Optionally, the pretreatment module includes a buffer box, a dust collector, and a filter box connected in sequence. The buffer box is used to collect waste gas. A primary adsorption fan is provided between the filter box and the dust collector. The filter box is connected to the primary adsorption and concentration unit. A coarse filtration layer, an activated carbon adsorption layer, and a cooling unit are arranged in sequence inside the filter box. The cooling unit is used to reduce the temperature and humidity of the waste gas passing through the filter box.

[0032] By adopting the above technical solutions, the buffer box can collect and mix the exhaust gas evenly, the dust collector can filter out most of the dust particles in the exhaust gas, and the added pre-coating device can protect the filter material. The primary adsorption fan provides power for the exhaust gas flow. The coarse filter layer in the filter box can filter the particles in the exhaust gas, controlling the particle size to below 1μm, avoiding the risk of the adsorption pores of the subsequent adsorption medium being blocked. The activated carbon adsorption layer can adsorb and purify large molecular high-boiling-point substances in the exhaust gas, extending the service life of the rotor. The cooling unit can keep the exhaust gas temperature below 40℃ and the relative humidity below 80%, ensuring the good adsorption performance of the subsequent primary adsorption concentration unit. The overall pretreatment module provides a good foundation for the subsequent exhaust gas purification treatment, improving the exhaust gas purification efficiency and the service life of the equipment.

[0033] In summary, this application includes at least one of the following beneficial technical effects:

[0034] 1. The pretreatment module, adsorption concentration module and incineration module work together to pretreat the waste gas, then perform primary and secondary adsorption concentration, and finally incinerate it, which can improve the purification efficiency and ensure that the waste gas is stably discharged in compliance with standards.

[0035] 2. Through the cooperation of the main gas supply pipe, the main purging pipe, the branch gas supply pipe, the branch purging pipe, the inlet lift valve and the purging valve, it is beneficial to realize the process of multiple heat storage chambers taking turns to store heat, release heat and purge, thereby improving the purification efficiency. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of a rubber tire production exhaust gas purification system according to Embodiment 1 of this application.

[0037] Figure 2 This is a partial structural schematic diagram of a rubber tire production exhaust gas purification system according to Embodiment 1 of this application.

[0038] Figure 3 This is a schematic diagram of the overall structure of a rubber tire production exhaust gas purification system according to Embodiment 2 of this application.

[0039] Figure 4 This is a partial structural schematic diagram of the adsorption concentration module in Embodiment 2 of this application.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Pretreatment Module; 11. Buffer Tank; 12. Dust Collector; 13. Filter Box; 131. Coarse Filter Layer; 132. Activated Carbon Adsorption Layer; 133. Cooling Unit; 14. Primary Adsorption Fan; 2. Adsorption Concentration Module; 21. Primary Adsorption Concentration Unit; 211. Primary Zeolite Rotor; 212. First Pipeline; 213. Second Pipeline; 214. Third Pipeline; 215. Fourth Pipeline; 216. Fifth Pipeline; 217. Transfer Pipeline; 218. Branch Pipe; 22. Secondary Adsorption Concentration Unit; 221. Secondary Zeolite Rotor; 222. Sixth Pipeline; 223. Seventh Pipeline; 224. Secondary Adsorption Fan; 225. Return Pipe; 2251. Secondary Desorption Fan; 2252. Exhaust Valve; 226. Eighth Pipeline; 227. Zeolite 228. Ring; 229. Connector; 229. Baffle assembly; 2291. End panel; 2292. Radial baffle; 23. Adsorption zone; 24. Cooling zone; 25. Desorption zone; 26. Control valve; 27. Switching assembly; 271. Main gas supply pipe; 2711. Make-up air valve; 2712. Inlet valve; 272. Main purging pipe; 273. Fan; 274. Branch gas supply pipe; 275. Branch purging pipe; 276. Inlet lift valve; 277. Purge valve; 278. Flame arrester; 3. Incineration module; 31. First-stage desorption fan; 32. Shell; 321. Regenerator; 33. Burner; 34. Regenerator layer; 35. Combustion chamber; 4. Exhaust module; 41. Exhaust unit; 42. Main exhaust pipe; 43. Branch exhaust pipe; 5. Heat exchange module; 51. Heat extraction valve. Detailed Implementation

[0042] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0043] This application discloses a system for purifying exhaust gas from rubber tire production.

[0044] It should be noted that, in the description of this invention, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0045] Example 1:

[0046] Reference Figure 1A waste gas purification system for rubber tire production includes a pretreatment module 1, an adsorption and concentration module 2, an incineration module 3, and an exhaust module 4. The pretreatment module 1, adsorption and concentration module 2, and exhaust module 4 are connected sequentially, with the adsorption and concentration module 2 connected to the incineration module 3. The pretreatment module 1 pretreats the waste gas, the adsorption and concentration module 2 adsorbs and concentrates the pretreated waste gas, and the purified waste gas is discharged through the exhaust module 4. The concentrated waste gas then enters the incineration module 3 for incineration, thereby achieving efficient and stable purification of waste gas from rubber tire production.

[0047] The pretreatment module 1 includes a buffer box 11, a dust collector 12, and a filter box 13 connected in sequence. The buffer box 11 is made of corrosion-resistant materials such as stainless steel, and is used to mix the waste gases collected from each source evenly.

[0048] In this embodiment, the dust collector 12 is a pulse-jet bag filter, which facilitates the filtration of most dust particles in the exhaust gas and allows for periodic recycling via pulse-jet backflushing. The dust collector 12 is equipped with a pre-coating device that sprays quicklime onto the surface of the filter bags or cartridges to form a protective powder cake layer, blocking sticky substances in the exhaust gas from the filter material surface and providing protection.

[0049] A primary adsorption fan 14 is provided between the filter box 13 and the dust collector 12. In this embodiment, the primary adsorption fan 14 is a centrifugal fan, which can provide power for the flow of waste gas and transport the waste gas treated by the dust collector 12 to the filter box 13.

[0050] Reference Figure 1 and Figure 2 The filter box 13 contains a coarse filter layer 131, an activated carbon adsorption layer 132, and a cooling unit 133 arranged sequentially. The coarse filter layer 131 employs a multi-layer filter structure to filter large dust particles in the exhaust gas, controlling the particle size within a certain range. In this embodiment, the coarse filter layer 131 is used to control the particle size in the exhaust gas to below 1 μm to prevent particles from clogging the adsorption and concentration module 2.

[0051] The activated carbon adsorption layer 132 uses activated carbon material to adsorb and purify high-boiling-point macromolecular substances in the waste gas, extending the service life of the subsequent adsorption and concentration module 2. Furthermore, the cooling unit 133 employs a structure with an internal surface cooler, circulating cooling water to cool and dehumidify the waste gas, keeping the temperature below 40 degrees Celsius and the relative humidity below 80%, thereby ensuring good adsorption performance of the subsequent adsorption and concentration module 2.

[0052] The adsorption concentration module 2 includes a primary adsorption concentration unit 21 and a secondary adsorption concentration unit 22. The primary adsorption concentration unit 21 is used to perform primary adsorption concentration on the pretreated waste gas, and the secondary adsorption concentration unit 22 is used to perform deep adsorption on the waste gas after primary adsorption concentration.

[0053] The primary adsorption concentration unit 21 includes a primary zeolite rotor 211, a first pipeline 212, a second pipeline 213, a third pipeline 214, and a fourth pipeline 215. The primary zeolite rotor 211 is provided with an adsorption zone 23, a cooling zone 24, and a desorption zone 25.

[0054] In this embodiment, the core of the primary zeolite rotor 211 is a hydrophobic zeolite molecular sieve, which is coated on a honeycomb ceramic or metal fiber carrier to form an adsorption medium with a huge specific surface area, thereby facilitating the removal of most VOCs from the exhaust gas. Furthermore, the primary zeolite rotor 211 is driven by a motor to rotate slowly.

[0055] The first pipe 212 is connected to the filter box 13 and the adsorption zone 23 of the first-stage zeolite rotor 211, respectively. The second pipe 213 is connected to the first pipe 212 and the cooling zone 24 of the first-stage zeolite rotor 211, respectively. This allows the waste gas filtered by the filter box 13 to be transported through the first pipe 212, and most of the waste gas can be transported to the adsorption zone 23 of the first-stage zeolite rotor 211. A small portion of the waste gas can enter the cooling zone 24 of the first-stage zeolite rotor 211 through the second pipe 213, thereby cooling the desorption zone 25 of the first-stage zeolite rotor 211. This portion of the waste gas can be heated to about 110 degrees Celsius after passing through the first-stage zeolite rotor 211.

[0056] A heat exchange module 5 is provided between the adsorption concentration module 2 and the incineration module 3. In this embodiment, the heat exchange module 5 is a plate or shell-and-tube heat exchanger. The third pipeline 214 is connected to both the heat exchange module 5 and the cooling zone 24 of the first-stage zeolite rotor 211, so that the exhaust gas from the cooling zone 24 of the first-stage zeolite rotor 211 can enter the heat exchange module 5 through the third pipeline 214 for heat exchange.

[0057] The fourth pipeline 215 is connected to the heat exchange module 5 and the desorption zone 25 of the first-stage zeolite rotor 211, and the desorption zone 25 of the first-stage zeolite rotor 211 is connected to the combustion module 3. A fifth pipeline 216 is provided between the third pipeline 214 and the fourth pipeline 215, and control valves 26 are respectively provided on the third pipeline 214, the fourth pipeline 215, and the fifth pipeline 216. In this embodiment, the control valve 26 is an electrically operated regulating valve used to control parameters such as gas flow rate and temperature.

[0058] Specifically, the control valve 26 on the third pipe 214 is used to control the airflow into the cooling zone 24 of the first-stage zeolite rotor 211 to ensure sufficient cooling of the first-stage zeolite rotor 211. The control valves 26 on the fourth pipe 215 and the fifth pipe 216 work together to finely regulate the temperature so that the temperature of the desorption zone 25 of the first-stage zeolite rotor 211 is maintained within a suitable range.

[0059] When the temperature of the desorption zone 25 of the first-stage zeolite rotor 211 is detected to be too high, the opening of the control valve 26 on the fifth pipeline 216 is controlled to introduce some of the cold air in the third pipeline 214 to reduce the temperature of the gas entering the desorption zone 25 of the first-stage zeolite rotor 211.

[0060] When the exhaust gas enters the heat exchange module 5 through the third pipe 214 for heat exchange, the exhaust gas is heated to about 200 degrees Celsius and then enters the desorption zone 25 of the first-stage zeolite rotor 211 through the fourth pipe 215 to desorb the VOCs adsorbed on the first-stage zeolite rotor 211, forming a high-concentration, low-volume exhaust gas, which then enters the incineration module 3 for incineration.

[0061] A primary desorption fan 31 is provided between the incineration module 3 and the desorption zone 25 of the primary zeolite rotor 211. In this embodiment, the primary desorption fan 31 is a Roots blower, which is used to provide power for the high-concentration, low-volume exhaust gas after desorption to enter the incineration module 3.

[0062] The adsorption zone 23 on the primary zeolite rotor 211 is connected to a transfer pipeline 217. The secondary adsorption concentration unit 22 includes a secondary zeolite rotor 221, a sixth pipeline 222, and a seventh pipeline 223. The secondary zeolite rotor 221 has a similar structure to the primary zeolite rotor 211, both having an adsorption zone 23, a cooling zone 24, and a desorption zone 25. In this embodiment, the concentration factor of the primary zeolite rotor 211 is controlled at 10-25 times, and the concentration factor of the secondary zeolite rotor 221 is controlled at 20-40 times.

[0063] The transfer pipe 217 is connected to the adsorption zone 23 on the secondary zeolite rotor 221. A branch pipe 218 is connected to the transfer pipe 217, and the branch pipe 218 is connected to the cooling zone 24 on the secondary zeolite rotor 221. The adsorption zone 23 of the secondary zeolite rotor 221 is connected to the exhaust module 4, and a secondary adsorption fan 224 is provided between the secondary zeolite rotor 221 and the exhaust module 4. The secondary adsorption fan 224 is used to provide power for the gas purified by the adsorption zone 23 of the secondary zeolite rotor 221 to enter the exhaust module 4.

[0064] The sixth pipe 222 is connected to the third pipe 214 and the cooling zone 24 on the secondary zeolite rotor 221, respectively, and the seventh pipe 223 is connected to the fourth pipe 215 and the desorption zone 25 on the secondary zeolite rotor 221, respectively.

[0065] A return pipe 225 is connected to the desorption zone 25 of the secondary zeolite rotor 221, which connects the primary adsorption fan 14 and the dust collector 12. A secondary desorption fan 2251 and an exhaust valve 2252 are respectively installed on the return pipe 225. The secondary desorption fan 2251 can also be a Roots blower, etc., providing power for the desorbed waste gas to return to the primary adsorption fan 14 and the dust collector 12. The exhaust valve 2252 is used to control the discharge of the return gas.

[0066] When the exhaust gas, after being treated in the adsorption zone 23 of the primary zeolite rotor 211, is transported to the secondary zeolite rotor 221 via the transfer pipe 217, most of the exhaust gas is transported to the adsorption zone 23 on the secondary zeolite rotor 221 via the transfer pipe 217, and is finally discharged from the exhaust module 4 after passing through the secondary zeolite rotor 221. A small portion of the exhaust gas is transported to the cooling zone 24 on the secondary zeolite rotor 221 via the branch pipe 218 to serve as cooling air to cool the secondary zeolite rotor 221.

[0067] The exhaust gas passing through the cooling zone 24 on the secondary zeolite rotor 221 can sequentially enter the heat exchange module 5 through the sixth pipe 222 and the third pipe 214, where it undergoes heat exchange. The heated gas then flows into the desorption zone 25 of the secondary zeolite rotor 221 through the fourth pipe 215 and the seventh pipe 223 to desorb the VOCs adsorbed on the secondary zeolite rotor 221, forming a high-concentration, low-volume exhaust gas. This exhaust gas then flows back between the primary adsorption fan 14 and the dust collector 12 to mix with the exhaust gas to be treated, and then undergoes adsorption treatment again.

[0068] An eighth pipeline 226 is provided between the sixth pipeline 222 and the seventh pipeline 223. Control valves 26 are also provided on the sixth pipeline 222, the seventh pipeline 223, and the eighth pipeline 226 to control parameters such as gas flow rate and temperature.

[0069] In this embodiment, the incineration module 3 adopts an RTO incineration device, the incineration temperature is controlled at about 800 degrees Celsius, and the residence time of the exhaust gas in the RTO incineration device is guaranteed to be about 1 second, so as to ensure that the exhaust gas can be fully oxidized and decomposed.

[0070] The incineration module 3 includes a housing 32 and a burner 33. Multiple heat storage chambers 321 are disposed within the housing 32, and a heat storage layer 34 is disposed within each heat storage chamber 321. In this embodiment, three heat storage chambers 321 are provided, and the three heat storage chambers 321 switch at specific intervals to alternately perform heat storage, heat release, and purging processes, with a switching time of 90-180 seconds. Furthermore, ceramic fibers are disposed on the inner wall of the housing 32 to reduce heat loss.

[0071] The heat storage layer 34 is filled with heat storage ceramic material. The heat storage ceramic can be plate-type honeycomb ceramic, which is often used in conjunction with ceramic saddle rings. The heat storage ceramic has a large heat melting point, high product density, good thermal shock resistance, and is not easily damaged. Moreover, the heat recovery efficiency can reach more than 95%.

[0072] A combustion chamber 35 is disposed inside the housing 32, and the combustion chamber 35 is connected to multiple heat storage chambers 321. A burner 33 is disposed on the housing 32 and extends into the combustion chamber 35. In this embodiment, the burner 33 is a low-NOx burner to reduce the generation of secondary pollutants (nitrogen oxides). After filtration and pressure reduction, fuel is supplied to the combustion chamber 35. The fuel gas regulation ratio of the burner 33 can reach 1:40, thereby reducing energy consumption.

[0073] The heat exchange module 5 is connected to the combustion chamber 35, so that the exhaust gas entering the heat exchange module 5 through the third pipe 214 can exchange heat with the high-temperature flue gas from the combustion chamber 35 in the heat exchange module 5, so as to heat the exhaust gas to about 200 degrees Celsius.

[0074] A switching assembly 27 is connected to the primary zeolite rotor 211. The switching assembly 27 includes a main gas supply pipe 271, a main purging pipe 272, and a blower 273. One end of the main gas supply pipe 271 is connected to the desorption zone 25 of the primary zeolite rotor 211. The other end of the main gas supply pipe 271 is provided with a gas supply branch pipe 274. One end of the main purging pipe 272 is connected to the main gas supply pipe 271. The other end of the main purging pipe 272 is provided with a purging branch pipe 275. The number of gas supply branch pipes 274, purging branch pipes 275, and heat storage chambers 321 are equal, and the gas supply branch pipes 274, purging branch pipes 275, and heat storage chambers 321 are arranged in a one-to-one correspondence.

[0075] An intake lift valve 276 is installed on the gas supply branch pipe 274, and a purge valve 277 is installed on the purge branch pipe 275. A blower 273 is installed on the main gas supply pipe 271 and located between the purge main pipe 272 and the gas supply branch pipe 274. A flame arrester 278 is installed on the main gas supply pipe 271 and located between the blower 273 and the gas supply branch pipe 274. The flame arrester 278 can effectively prevent backfire and ensure system safety.

[0076] The blower 273 provides power to purge the heat storage chamber 321 under negative pressure through the purge valve 277. This draws some of the residual unpurified exhaust gas temporarily stored in the heat storage chamber 321 to the front end of the blower 273, mixes it with the high-concentration zeolite rotor desorption exhaust gas, and then enters the combustion chamber 35 for incineration, thereby improving the purification effect.

[0077] In this embodiment, the gas supply main pipe 271 is respectively provided with a make-up air valve 2711 and an inlet valve 2712. The inlet valve 2712 is located on the side of the fan 273 away from the flame arrester 278, and the make-up air valve 2711 is located between the fan 273 and the inlet valve 2712. The make-up air valve 2711 is used to make up air in the combustion chamber 35 so as to facilitate the start-up and heating of the combustion module 3 and the cooling of the combustion chamber 35 when the temperature exceeds the standard.

[0078] The exhaust module 4 includes an exhaust unit 41 and an exhaust main pipe 42. One end of the exhaust main pipe 42 is connected to the exhaust unit 41, and the other end of the exhaust main pipe 42 is provided with an exhaust branch pipe 43. The number of exhaust branch pipes 43 is equal to that of the heat storage chamber 321 and they are provided one-to-one. An intake lift valve 276 is also provided on the exhaust branch pipe 43.

[0079] The exhaust pipe 42 is connected to the adsorption zone 23 of the secondary zeolite rotor 221, and also to the heat exchange module 5. A heat extraction valve 51 is installed between the exhaust pipe 42 and the heat exchange module 5. By controlling the opening of the heat extraction valve 51, the amount of heat extracted from the combustion chamber 35 can be adjusted. In this embodiment, the exhaust unit 41 is an exhaust pipe or chimney, on which a sampling port for environmental monitoring can be installed.

[0080] The implementation principle of the exhaust gas purification system for rubber tire production in this application embodiment is as follows: When exhaust gas needs to be purified, the primary adsorption fan 14 operates, causing the exhaust gas in the buffer box 11 to pass through the dust collector 12 and the filter box 13 in sequence and enter the first pipeline 212. Most of the exhaust gas enters the adsorption zone 23 of the primary zeolite rotor 211 through the first pipeline 212, and then passes through the transfer pipeline 217, the adsorption zone 23 of the secondary zeolite rotor 221 and the exhaust main pipe 42 in sequence, and is finally discharged from the exhaust unit 41. A small portion of the exhaust gas enters the cooling zone 24 of the primary zeolite rotor 211 through the second pipeline 213, and is preheated to about 100 degrees Celsius after cooling the primary zeolite rotor 211. Then, it enters the heat exchange module 5 through the third pipeline 214 and exchanges heat with the high-temperature flue gas from the combustion chamber 35 to heat the exhaust gas to about 200 degrees Celsius. Next, the heated exhaust gas enters the desorption zone 25 of the first-stage zeolite rotor 211 through the fourth pipe 215 to desorb the VOCs adsorbed on the first-stage zeolite rotor 211, forming a high-concentration, low-volume exhaust gas.

[0081] The desorbed exhaust gas is transported to the main gas supply pipe 271 by the primary desorption fan 31, and then to the branch gas supply pipe 274 by the fan 273. From the branch gas supply pipe 274, it enters the heat storage chamber 321 and the combustion chamber 35 for combustion. The high-temperature flue gas generated after combustion passes through the heat exchange module 5 and the exhaust main pipe 42, and is finally discharged through the exhaust unit 41.

[0082] When the exhaust gas enters the adsorption zone 23 of the secondary zeolite rotor 221 through the transfer pipe 217, a small portion of the exhaust gas will also enter the cooling zone 24 on the secondary zeolite rotor 221 through the branch pipe 218 to cool the secondary zeolite rotor 221. The exhaust gas then passes through the sixth pipe 222 and the third pipe 214 to enter the heat exchanger for heat exchange. It then flows into the desorption zone 25 of the secondary zeolite rotor 221 through the fourth pipe 215 and the seventh pipe 223 to desorb the VOCs adsorbed on the secondary zeolite rotor 221, forming a high-concentration, low-volume exhaust gas. This exhaust gas then flows back to the primary adsorption fan 14 and the dust collector 12 to mix with the exhaust gas to be treated, and then undergoes adsorption treatment again.

[0083] In this embodiment, a refined pretreatment process removes harmful impurities such as dust and tar from the waste gas; a primary zeolite rotor 211 performs main purification of the waste gas, and the concentrated desorbed gas is sent to an RTO for high-efficiency incineration; simultaneously, a secondary zeolite rotor 221 performs deep purification of the primary purified gas, and the concentrated desorbed gas is sent back to the front end of the system for recirculation and adsorption. This dual-cycle, staged treatment strategy ensures high system purification efficiency and stable operation.

[0084] Example 2:

[0085] Reference Figure 3 and Figure 4 The difference between this embodiment and Embodiment 1 is that the adsorption concentration module 2 is different.

[0086] The secondary adsorption concentration unit 22 includes a zeolite ring 227, a connector 228, and a guide plate assembly 229. The zeolite ring 227 is coaxially sleeved on the outside of the primary zeolite rotor 211, and the zeolite ring 227 is fixedly connected to the primary zeolite rotor 211 through the connector 228, so that the zeolite ring 227 and the primary zeolite rotor 211 can be driven by a drive system.

[0087] The guide plate assembly 229 includes an end panel 2291 and a radial baffle 2292. The shape of the end panel 2291 matches the end face contour of the zeolite ring 227 and the first-stage zeolite rotor 211. There are two end panels 2291. The zeolite ring 227 and the first-stage zeolite rotor 211 are clamped between the two end panels 2291 and can rotate between the two end panels 2291.

[0088] Radial baffles 2292 are disposed on end panel 2291 and radiate outward from the center area of ​​end panel 2291, which can divide the circular cross section formed by the combination of zeolite ring 227 and primary zeolite rotor 211 into three independent sectors, namely the adsorption zone 23 with the largest area, the desorption zone 25 with the smaller area, and the cooling zone 24.

[0089] When the connector 228 rotates with the primary zeolite rotor 211 and zeolite ring 227 to the position of the radial baffle 2292, the connector 228 comes into contact with the radial baffle 2292 to isolate the adsorption zone 23, the desorption zone 25 and the cooling zone 24.

[0090] Through the cooperation of multiple radial baffles 2292 and connectors 228, the exhaust gas can be guided to flow radially within the primary zeolite rotor 211 and zeolite ring 227. The first pipe 212 is connected to the adsorption zone 23 of the primary zeolite rotor 211 through the end panel 2291, the second pipe 213 is connected to the cooling zone 24 of the zeolite ring 227 through the end panel 2291, the third pipe 214 is connected to the cooling zone 24 of the primary zeolite rotor 211 through the end panel 2291, the fourth pipe 215 is connected to the desorption zone 25 of the zeolite ring 227 through the end panel 2291, and the main gas supply pipe 271 is connected to the desorption zone 25 of the primary zeolite rotor 211 through the end panel 2291.

[0091] To ensure airtightness, wear-resistant and high-temperature resistant seals (such as graphite-filled polytetrafluoroethylene sealing strips) are provided at the edges of the radial partition 2292 and in the non-open areas where the end panel 2291, the first-stage zeolite rotor 211, and the zeolite ring 227 contact, to prevent gas cross-flow between sectors.

[0092] The implementation principle of Example 2 is as follows: After pretreatment, most of the waste gas enters the adsorption zone 23 of the first-stage zeolite rotor 211 through the first pipeline 212. Under pressure, the waste gas flows radially from the inside to the outside, passing through the adsorption zones 23 of the first-stage zeolite rotor 211 and the zeolite ring 227 in the same sector in sequence, completing the preliminary adsorption and deep adsorption. The purified gas is collected and discharged from the outside of the zeolite ring 227.

[0093] When the high-temperature zone of the zeolite ring 227 and the first-stage zeolite rotor 211, which has just undergone desorption, rotates to the cooling zone 24, a small portion of the pre-treated waste gas enters the cooling zone 24 of the zeolite ring 227 through the second pipe 213. It then flows radially through the cooling zones 24 of the zeolite ring 227 and the first-stage zeolite rotor 211 in the same sector, thereby cooling the zeolite ring 227 and the first-stage zeolite rotor 211. The gas then enters the heat exchange module 5 through the third pipe 214 for heat exchange.

[0094] The high-temperature gas, heated by the heat exchanger, enters the desorption zone 25 of the primary zeolite rotor 211 through the fourth pipe 215. It then passes radially from the outside in through the zeolite ring 227 and the primary zeolite rotor 211, desorbing the VOCs adsorbed on them. Finally, the desorbed gas carrying a high concentration of VOCs is sent to the incineration module 3 for harmless incineration.

[0095] In this embodiment, the primary zeolite rotor 211 and zeolite ring 227 work collaboratively, driven by a single drive system, simplifying the equipment structure and reducing costs. The baffle assembly 229 ensures orderly flow of exhaust gas between the primary zeolite rotor 211 and zeolite ring 227, improving adsorption and desorption efficiency. Simultaneously, this coaxially nested structure makes the entire adsorption and concentration module 2 more compact, saving space. Compared to the traditional two-stage rotor structure, this embodiment's design improves purification efficiency while also exhibiting better stability and reliability, further addressing existing problems in the prior art and enhancing the overall performance of the rubber tire production exhaust gas purification system.

[0096] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A waste gas purification system for rubber tire production, characterized in that, include: The pretreatment module (1) is used to pretreat the waste gas to be treated; The adsorption concentration module (2) includes a primary adsorption concentration unit (21) and a secondary adsorption concentration unit (22). The primary adsorption concentration unit (21) is connected to the pretreatment module (1) and the secondary adsorption concentration unit (22) respectively. The primary adsorption concentration unit (21) is used to perform primary adsorption concentration on the pretreated waste gas. The secondary adsorption concentration unit (22) is used to perform deep adsorption on the waste gas after primary adsorption concentration. The waste gas desorbed from the secondary adsorption concentration unit (22) can be returned to the pretreatment module (1). The incineration module (3) is connected to the primary adsorption and concentration unit (21), and the incineration module (3) is used to incinerate the waste gas desorbed from the primary adsorption and concentration unit (21).

2. The rubber tire production exhaust gas purification system according to claim 1, characterized in that: It also includes a heat exchange module (5), which is connected to the incineration module (3) and the secondary adsorption concentration unit (22) respectively. The primary adsorption concentration unit (21) includes a primary zeolite rotor (211), a first pipeline (212), a second pipeline (213), a third pipeline (214) and a fourth pipeline (215). The primary zeolite rotor (211) is provided with an adsorption zone (23), a cooling zone (24) and a desorption zone (25) respectively. The first pipeline (212) is connected to the pretreatment module (1) and the adsorption zone (23) respectively. The adsorption zone (23) is connected to the secondary adsorption concentration unit (22). The second pipeline (213) is connected to the first pipeline (212) and the cooling zone (24) respectively. The third pipeline (214) is connected to the cooling zone (24) and the heat exchange module (5) respectively. The fourth pipeline (215) is connected to the desorption zone (25) and the heat exchange module (5) respectively. The desorption zone (25) is connected to the incineration module (3). A primary desorption fan (31) is provided between the incineration module (3) and the desorption zone (25).

3. The rubber tire production exhaust gas purification system according to claim 2, characterized in that: The adsorption zone (23) on the primary zeolite rotor (211) is connected to a transfer pipeline (217). The secondary adsorption and concentration unit (22) includes a secondary zeolite rotor (221), a sixth pipeline (222), and a seventh pipeline (223). The secondary zeolite rotor (221) has a similar structure to the primary zeolite rotor (211). The transfer pipeline (217) is connected to the adsorption zone (23) on the secondary zeolite rotor (221). A branch pipe (218) is connected to the pipeline (217), the branch pipe (218) is connected to the cooling zone (24) on the secondary zeolite rotor (221), the sixth pipeline (222) is connected to the third pipeline (214) and the cooling zone (24) on the secondary zeolite rotor (221) respectively, and the seventh pipeline (223) is connected to the fourth pipeline (215) and the desorption zone (25) on the secondary zeolite rotor (221) respectively.

4. The rubber tire production exhaust gas purification system according to claim 3, characterized in that: A fifth pipeline (216) is provided between the third pipeline (214) and the fourth pipeline (215), and an eighth pipeline (226) is provided between the sixth pipeline (222) and the seventh pipeline (223). A control valve (26) is provided on the third pipeline (214), the fourth pipeline (215), the fifth pipeline (216), the sixth pipeline (222), the seventh pipeline (223), and the eighth pipeline (226).

5. The rubber tire production exhaust gas purification system according to claim 3, characterized in that: The desorption zone (25) of the secondary zeolite rotor (221) is connected to a reflux pipe (225), which is connected to the pretreatment module (1). A secondary desorption fan (2251) and an exhaust valve (2252) are respectively installed on the reflux pipe (225).

6. The rubber tire production exhaust gas purification system according to claim 2, characterized in that: The secondary adsorption concentration unit (22) includes a zeolite ring (227) and a connector (228). The zeolite ring (227) is coaxially sleeved on the outside of the primary zeolite rotor (211). The zeolite ring (227) is fixedly connected to the primary zeolite rotor (211) through the connector (228). The zeolite ring (227) is also provided with an adsorption zone (23), a cooling zone (24) and a desorption zone (25), which correspond one-to-one with the adsorption zone (23), cooling zone (24) and desorption zone (25) on the primary zeolite rotor (211).

7. The rubber tire production exhaust gas purification system according to claim 6, characterized in that: The secondary adsorption and concentration unit (22) further includes a guide plate assembly (229), which includes an end panel (2291) and radial baffles (2292). The shape of the end panel (2291) matches the end face contours of the zeolite ring (227) and the primary zeolite rotor (211). The radial baffles (2292) are disposed on the end panel (2291) and radiate outward from the center region of the end panel (2291). The radial baffles (2292) can concentrate the zeolite ring (2291) into the zeolite rotor (2292). 7) The circular cross-section formed by the first-stage zeolite rotor (211) is divided into an adsorption zone (23), a desorption zone (25) and a cooling zone (24). The second pipeline (213) is connected to the cooling zone (24) of the zeolite ring (227) through the end panel (2291). The fourth pipeline (215) is connected to the desorption zone (25) of the zeolite ring (227) through the end panel (2291). The exhaust gas can flow radially within the first-stage zeolite rotor (211) and the zeolite ring (227).

8. The rubber tire production exhaust gas purification system according to claim 1, characterized in that: The incineration module (3) includes a shell (32) and a burner (33). The shell (32) is provided with a plurality of heat storage chambers (321). The heat storage chambers (321) are provided with a heat storage layer (34). The shell (32) is provided with a combustion chamber (35). The combustion chamber (35) is connected to the plurality of heat storage chambers (321) respectively. The burner (33) is disposed on the shell (32) and extends into the combustion chamber (35). The primary adsorption concentration unit (21) is connected to a switching component (27). The end of the switching component (27) away from the primary adsorption concentration unit (21) is connected to a plurality of heat storage chambers (321). The switching component (27) is used to supply gas and purge the plurality of heat storage chambers (321) in sequence.

9. The rubber tire production exhaust gas purification system according to claim 8, characterized in that: It also includes an exhaust module (4), which is connected to the secondary adsorption concentration unit (22) and the multiple heat storage chambers (321) respectively. The switching component (27) includes a gas supply main pipe (271), a purge main pipe (272) and a fan (273). One end of the gas supply main pipe (271) is connected to the primary adsorption concentration unit (21), and the other end of the gas supply main pipe (271) is provided with a gas supply branch pipe (274). One end of the purge main pipe (272) is connected to the gas supply main pipe (271), and the other end of the purge main pipe (272) is provided with a purge branch pipe (275). An air intake lift valve (276) is provided on the gas supply branch pipe (274), and a purge valve (277) is provided on the purge branch pipe (275). The number of gas supply branch pipes (274), purge branch pipes (275) and heat storage chambers (321) are equal and they are arranged in a one-to-one correspondence. The fan (273) is arranged on the gas supply main pipe (271) and located between the purge main pipe (272) and the gas supply branch pipes (274). A flame arrester (278) is arranged on the gas supply main pipe (271) and the flame arrester (278) is arranged between the fan (273) and the gas supply branch pipes (274).

10. The rubber tire production exhaust gas purification system according to claim 1, characterized in that: The pretreatment module (1) includes a buffer box (11), a dust collector (12), and a filter box (13) connected in sequence. The buffer box (11) is used to collect waste gas. A primary adsorption fan (14) is provided between the filter box (13) and the dust collector (12). The filter box (13) is connected to the primary adsorption concentration unit (21). A coarse filter layer (131), an activated carbon adsorption layer (132), and a cooling unit (133) are arranged in sequence inside the filter box (13). The cooling unit (133) is used to reduce the temperature and humidity of the waste gas passing through the filter box (13).

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