Filtering device for RTO (Regenerative Thermal Oxidation) furnace

Abstract

The utility model discloses a filtering device for an RTO (regenerative thermal oxidizer), which comprises a tank body and a tank cover, an air inlet pipe and a discharge pipe are arranged on the tank body, a water inlet pipe is arranged on the tank cover, the filtering device further comprises a spraying assembly and a filtering assembly, and the spraying assembly is detachably mounted on the tank cover and communicated with the water inlet pipe; the filtering assembly comprises a scraping plate and a filtering net plate, the scraping plate is detachably mounted in the tank body, and the filtering net plate is rotatably mounted in the tank body through the driving assembly. According to the utility model, particulate matters in waste gas can be filtered through the filter screen plate, so that the particulate matters are prevented from entering the RTO heat accumulating type oxidizing furnace to cause blockage of a heat accumulator, the probability of damage failure of the RTO heat accumulating type oxidizing furnace is reduced, frequent maintenance by workers is not needed, and the waste gas treatment efficiency is improved; and the filter screen plate can be automatically cleaned through the scraping plate and the spraying assembly, the labor intensity of workers is relieved, the cleaning efficiency of the filter screen plate is improved, and the filtering effect of the filter screen plate is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a filtering device for an RTO regenerative thermal oxidation furnace. Background Art

[0002] RTO is a regenerative thermal oxidizer. Its working principle is to convert volatile organic compounds (VOCs) in exhaust gas into carbon dioxide and water under high temperature environment, so as to purify the exhaust gas; at the same time, the process can also recover the heat released when the exhaust gas is decomposed. Specifically, the exhaust gas decomposition efficiency of the three-chamber RTO is as high as over 99%, and the heat recovery efficiency is also over 95%. Compared with catalytic combustion and direct-fired thermal oxidizers, regenerative thermal oxidizers have the characteristics of high thermal efficiency (at least 95%), low operating cost, and the ability to efficiently handle large air volumes and medium and low concentration exhaust gases.

[0003] The applicant disclosed an RTO thermal storage oxidizer in the patent with the announcement number CN214370260U, which includes a shell and a pipe system connected to the inside of the shell, wherein a combustion chamber is arranged in the middle of the shell, an oxidation chamber is arranged on one side of the combustion chamber, and a first thermal storage chamber and a second thermal storage chamber are arranged on the other side, the first thermal storage chamber and the second thermal storage chamber are separated by a spacer, and thermal storage bodies are arranged in the oxidation chamber, the first thermal storage chamber and the second thermal storage chamber respectively, and the pipe system exhausts and supplies gas to the first thermal storage chamber, the second thermal storage chamber and the oxidation chamber. The RTO thermal storage oxidizer arranges the oxidation chamber and the thermal storage chamber on both sides of the combustion chamber respectively, simplifies the processing flow of the thermal storage bodies in the oxidation chamber and the two thermal storage chambers, thereby simplifying the control method of the valves for controlling the opening and closing of each gas flow pipeline, and also reduces the energy consumption of repeatedly heating the thermal storage bodies in the thermal storage chambers.

[0004] It can be seen from the above patent that although this RTO thermal storage oxidation furnace simplifies the processing flow of the thermal storage bodies in the oxidation chamber and the two thermal storage chambers, simplifies the control method of the valves that control the opening and closing of each gas flow pipeline, and reduces the energy consumption of repeated heating of the thermal storage bodies in the thermal storage chambers, in actual use, since no relevant exhaust gas filtration system is set inside the shell and in the piping system, it is impossible to filter the exhaust gas, resulting in the heat storage holes on the thermal storage body being easily clogged due to particulate matter in the exhaust gas, which not only easily affects the normal operation of the device and reduces the working efficiency of the device, but also requires frequent maintenance by the staff, increasing the labor intensity of the staff. Utility Model Content

[0005] The main purpose of the utility model is to provide a filtering device for an RTO thermal storage oxidizer, aiming to solve the problem that the existing RTO thermal storage oxidizer cannot filter the exhaust gas, and the heat storage holes on the heat storage body are easily blocked by particulate matter in the exhaust gas, which not only easily affects the normal operation of the device and reduces the working efficiency of the device, but also requires frequent maintenance by the staff, increasing the labor intensity of the staff.

[0006] To achieve the above-mentioned purpose, the utility model provides a filtering device for an RTO regenerative thermal oxidation furnace, comprising a tank body and a tank cover detachably connected to the tank body, the tank body is provided with an air inlet pipe and a discharge pipe, the tank cover is provided with a water inlet pipe for communicating with an external water supply system, and also comprises a spraying assembly and a filtering assembly, the spraying assembly is detachably mounted on the tank cover and communicated with the water inlet pipe, the spraying assembly is used to spray water to the filtering assembly and the inner cavity of the tank body; the filtering assembly comprises a scraper and a filter screen, the scraper is detachably mounted in the tank body and used to push and scrape the filter screen, and the filter screen is rotatably mounted in the tank body through a driving assembly.

[0007] Preferably, the tank body includes an upper tank body and a lower tank body which are detachably connected to each other. A limiting groove for installing the scraper is provided at the tank mouth of the lower tank body, a connecting hole is provided on the scraper, and a mounting column is formed on the side of the filter screen plate facing the upper tank body. The end of the mounting column away from the filter screen plate passes through the connecting hole and is detachably connected to an end cover.

[0008] Preferably, gear teeth are formed on the outer wall of the filter screen plate along its circumference, a through hole is provided on the outer wall of the lower tank body at a position corresponding to the filter screen plate, and a mounting frame is provided on the outer wall of the upper tank body at a position corresponding to the through hole, and the driving assembly comprises a motor, a transmission shaft, a driving gear and a driven gear, the motor is vertically and detachably mounted on the mounting frame, the two ends of the transmission shaft are respectively detachably connected to the output end of the motor and the driving gear, the driven gear is rotatably mounted at the through hole, and the driven gear is respectively meshed with the driving gear and the gear teeth on the filter screen plate.

[0009] Preferably, an annular protrusion for covering the through hole is formed on the filter plate.

[0010] Preferably, a protective cover for shielding the driving gear, the driven gear and the through hole is provided on the outer wall of the lower tank body, a cover plate is detachably mounted on the top of the protective cover, and a sealing ring is provided between the cover plate and the protective cover.

[0011] Preferably, a support frame is detachably mounted on the outer wall of the lower tank body.

[0012] Preferably, the spray assembly includes a placement net tube and a plurality of nozzles connected to the placement net tube, the placement net tube is connected to the water inlet pipe, and the plurality of nozzles are evenly and spacedly arranged along the extension direction of the placement net tube.

[0013] Preferably, a three-way pipe is detachably installed at the discharge pipe.

[0014] Beneficial effects:

[0015] 1. In the utility model, a filtering device for an RTO regenerative thermal oxidizer is used, and particulate matter in the exhaust gas can be filtered through a filter screen, thereby reducing the content of particulate matter in the exhaust gas. This can not only prevent particulate matter from entering the RTO regenerative thermal oxidizer and causing blockage of the heat storage body, but also reduce the probability of damage and malfunction of the RTO regenerative thermal oxidizer. Moreover, the utility model does not require frequent maintenance by staff, thereby improving the exhaust gas treatment efficiency and being reliable to use.

[0016] 2. In the utility model, a filtering device for an RTO thermal storage oxidation furnace is used, and the filter screen is driven to rotate relative to the scraper through a driving assembly, so that the scraper can push and scrape the particulate matter attached and accumulated on the filter screen, and at the same time, water is sprayed to the filter screen through a spraying assembly on the tank cover connected to the water inlet pipe, thereby realizing automatic cleaning of the filter screen without the need for manual cleaning of the filter screen by the staff, which not only reduces the labor intensity of the staff, but also improves the cleaning efficiency of the filter screen, thereby ensuring the filtering effect of the filter screen on the particulate matter.

[0017] 3. The utility model is a filtering device for an RTO thermal storage oxidizer. When cleaning the filter screen, the staff closes the control valve between the air inlet pipe and the discharge pipe of the RTO thermal storage oxidizer, so that waste water cannot flow into the RTO thermal storage oxidizer, and opens the control valve between the waste water recovery tank and the discharge pipe, thereby realizing the recovery and treatment of waste water, and the structural design is simple and reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 This is a structural schematic diagram of a filtering device for an RTO regenerative thermal oxidation furnace according to an embodiment of the utility model at a viewing angle;

[0020] Figure 2It is a top view of a filtering device for an RTO regenerative thermal oxidation furnace according to an embodiment of the utility model;

[0021] Figure 3 yes Figure 2 Cross-sectional view at AA in the middle;

[0022] Figure 4 yes Figure 3 A partial enlarged view of point B in the middle;

[0023] Figure 5 It is an exploded view of a local structure of a filtering device used in an RTO regenerative thermal oxidation furnace according to an embodiment of the utility model.

[0024] In the figure: 1-tank body; 2-tank cover; 3-inlet pipe; 4-discharge pipe; 5-water inlet pipe; 6-scraper; 7-filter screen; 8-upper tank body; 9-lower tank body; 10-limiting groove; 11-connecting hole; 12-mounting column; 13-end cover; 14-through hole; 15-mounting frame; 16-motor; 17-transmission shaft; 18-driving gear; 19-driven gear; 20-protective cover; 21-cover plate; 22-sealing ring; 23-annular protrusion; 24-support frame; 25-net pipe placement; 26-sprinkler; 27-tee pipe. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] In the description of this application, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0029] In addition, if the terms "horizontal" or "vertical" appear in the description of this application, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] Embodiment 1:

[0032] The utility model provides a filtering device for an RTO regenerative thermal oxidation furnace.

[0033] In one embodiment of the utility model, a filtering device for an RTO thermal storage oxidation furnace includes a tank body 1 and a tank cover 2 detachably connected to the tank body 1, the tank body 1 is provided with an air inlet pipe 3 and a discharge pipe 4, the tank cover 2 is provided with a water inlet pipe 5 for communicating with an external water supply system, and also includes a spraying assembly and a filtering assembly, the spraying assembly is detachably mounted on the tank cover 2 and is connected to the water inlet pipe 5, the spraying assembly is used to spray water to the filtering assembly and the inner cavity of the tank body 1; the filtering assembly includes a scraper 6 and a filter screen plate 7, the scraper 6 is detachably mounted in the tank body 1 and is used to push and scrape the filter screen plate 7, and the filter screen plate 7 is rotatably mounted in the tank body 1 through a driving assembly.

[0034] Specifically, Figures 1 to 5As shown, in a filtering device for an RTO regenerative thermal oxidizer of the utility model, since the tank cover 2 is detachably connected to the tank body 1, the detachable connection method can be a threaded connection, thereby facilitating the disassembly and maintenance of the spray assembly and the filtering assembly; at the same time, by connecting the air intake pipe 3 on the tank body 1 with the air supply pipeline in the exhaust gas treatment system, and connecting the exhaust pipe 4 with the air intake pipeline of the RTO regenerative thermal oxidizer, the exhaust gas enters the tank body 1 through the air intake pipe 3, and then filters the particulate matter, and is transported to the RTO regenerative thermal oxidizer by the exhaust pipe 4, thereby achieving purification of the exhaust gas, and the structural design is simple and reasonable.

[0035] Furthermore, since a filter screen 7 is installed in the tank body 1, the particulate matter in the exhaust gas can be filtered through the filter screen 7, thereby reducing the particulate matter content in the exhaust gas, which can not only prevent the particulate matter from entering the RTO thermal storage oxidizer and causing the blockage of the thermal storage body, but also reduce the probability of damage and failure of the RTO thermal storage oxidizer, and does not require frequent maintenance by the staff, thereby improving the exhaust gas treatment efficiency and being reliable to use. It can be understood that the utility model needs to clean the filter screen 7 after long-term use to ensure the filtering effect of the particulate matter. Since the filter screen 7 is rotatably installed in the tank body 1 through the driving assembly, and the scraper 6 in the filter assembly is detachably installed in the tank body 1 and used to push and scrape the filter screen 7, the detachable installation method of the scraper 6 can be adopted as a snap-on or threaded connection, thereby facilitating the disassembly and replacement of the scraper 6. When the filter screen plate 7 needs to be cleaned, the driving assembly drives the filter screen plate 7 to rotate relative to the scraper 6, so that the scraper 6 can push and scrape the particulate matter attached and accumulated on the filter screen plate 7, and at the same time, the spray assembly connected to the water inlet pipe 5 on the tank cover 2 is used to spray water to the filter screen plate 7, thereby realizing automatic cleaning of the filter screen plate 7 without the need for the staff to manually clean the filter screen plate 7, which not only reduces the labor intensity of the staff, but also improves the cleaning efficiency of the filter screen plate 7, thereby ensuring the filtering effect of the filter screen plate 7 on particulate matter.

[0036] In addition, when the utility model is actually used, the discharge pipe 4 can be connected to the wastewater recovery tank at the same time. When cleaning the filter screen plate 7, the staff closes the control valve between the air intake pipe of the RTO thermal storage oxidation furnace and the discharge pipe 4, so that the wastewater cannot flow into the RTO thermal storage oxidation furnace, and opens the control valve between the wastewater recovery tank and the discharge pipe 4, thereby realizing the recovery and treatment of the wastewater, and the structural design is simple and reasonable.

[0037] It is worth noting that the RTO thermal storage oxidizer, control valve, wastewater recovery tank and their respective connecting pipes are all mature existing technologies and will not be described in detail here, and the drawings in the specification do not show their specific composition structures. The utility model is only aimed at solving the problem that the existing RTO thermal storage oxidizer cannot filter the exhaust gas, and the heat storage holes on the heat storage body are easily blocked by particulate matter in the exhaust gas, which not only easily affects the normal operation of the device and reduces the working efficiency of the device, but also requires frequent maintenance by the staff, increasing the labor intensity of the staff.

[0038] In one embodiment, the tank body 1 includes an upper tank body 8 and a lower tank body 9 which are detachably connected to each other. A limiting groove 10 for installing a scraper 6 is provided at the tank mouth of the lower tank body 9. A connecting hole 11 is provided on the scraper 6. A mounting column 12 is formed on the side of the filter screen plate 7 facing the upper tank body 8. The end of the mounting column 12 away from the filter screen plate 7 passes through the connecting hole 11 and is detachably connected to an end cover 13.

[0039] Specifically, Figure 1 , Figure 3 and Figure 5 As shown, since the upper tank body 8 and the lower tank body 9 of the tank body 1 are detachably connected, and the tank mouth of the lower tank body 9 is provided with a limiting groove 10 for installing the scraper 6, it is not only convenient to disassemble and replace the scraper 6, but also the scraper 6 can be limited and fixed by the limiting groove 10 to prevent the scraper 6 from rotating or moving relative to the lower tank body 9 when the filter screen 7 rotates, thereby ensuring the scraping effect of the scraper 6 on the particles, and the use is reliable. Furthermore, since the scraper 6 is provided with a connecting hole 11, and the upper side of the filter screen 7 is formed with a mounting column 12, by passing the upper end of the mounting column 12 through the connecting hole 11 and detachably connected with the end cover 13, the filter screen 7 can be rotatably installed on the scraper 6, and the end cover 13 can realize the limiting effect of the filter screen 7 in the upper and lower directions, and the structural design is simple and reasonable.

[0040] In one embodiment, if Figures 1 to 5As shown, gear teeth are formed on the outer wall of the filter screen plate 7 along its circumference, a through hole 14 is provided on the outer wall of the lower tank body 9 at a position corresponding to the filter screen plate 7, and a mounting frame 15 is provided on the outer wall of the upper tank body 8 at a position corresponding to the through hole 14. The driving assembly includes a motor 16, a transmission shaft 17, a driving gear 18 and a driven gear 19. The motor 16 is vertically and detachably mounted on the mounting frame 15, and the two ends of the transmission shaft 17 are detachably connected to the output end of the motor 16 and the driving gear 18, respectively. The driven gear 19 is rotatably mounted at the through hole 14, and the driven gear 19 is respectively meshed with the driving gear 18 and the gear teeth on the filter screen plate 7. It can be understood that when the filter screen plate 7 needs to be cleaned, the motor 16 runs and drives the driving gear 18 to rotate through the transmission shaft 17. Since the driven gear 19 is respectively meshed with the driving gear 18 and the gear teeth on the filter screen plate 7, the filter screen plate 7 can be rotated under the drive of the motor 16, and the structural design is simple and reasonable.

[0041] In one embodiment, if Figure 1 and Figure 5 As shown, an annular protrusion 23 for covering the through hole 14 is formed on the filter screen plate 7, thereby preventing water or gas from leaking from the through hole 14 and ensuring the sealing of the tank body 1.

[0042] In one embodiment, a protective cover 20 for shielding the driving gear 18, the driven gear 19 and the through hole 14 is provided on the outer wall of the lower tank 9, a cover plate 21 is detachably mounted on the top of the protective cover 20, and a sealing ring 22 is provided between the cover plate 21 and the protective cover 20. Specifically, Figures 1 to 5 As shown, the protective cover 20 shields and protects the driving gear 18, the driven gear 19 and the through hole 14, thereby preventing the staff from accidentally touching the driving gear 18 and being damaged by bumps and reducing safety hazards, and preventing the driving gear 18 and the driven gear 19 from being disturbed by external impurities, thereby ensuring the transmission stability between the driving gear 18 and the driven gear 19; at the same time, by detachably installing the cover plate 21 on the top of the protective cover 20, the detachable connection between the cover plate 21 and the protective cover 20 can be threaded, thereby facilitating the disassembly and assembly of the cover plate 21, and facilitating the disassembly and assembly of the driving gear 18 and the driven gear 19. Furthermore, since a sealing ring 22 is provided between the cover plate 21 and the protective cover 20, water or other liquids can be prevented from entering the protective cover 20, thereby ensuring the sealing of the protective cover 20 and the tank body 1, and extending the service life of the driving gear 18 and the driven gear 19.

[0043] In one embodiment, if Figure 1 , Figure 3 and Figure 5As shown, a support frame 24 is detachably mounted on the outer wall of the lower tank body 9. It can be understood that the support frame 24 can ensure the stability of the tank body 1 and effectively prevent the tank body 1 from tilting during use to cause safety accidents. The overall structural design is more stable and reasonable.

[0044] In one embodiment, the spray assembly includes a placement net tube 25 and a plurality of nozzles 26 connected to the placement net tube 25, the placement net tube 25 is connected to the water inlet pipe 5, and the plurality of nozzles 26 are evenly and spacedly arranged along the extension direction of the placement net tube 25. Specifically, as Figure 1 , Figure 3 and Figure 5 As shown, by connecting the placement net tube 25 to the external water supply system, and the plurality of nozzles 26 are all connected to the placement net tube 25, so that the plurality of nozzles 26 can spray water into the inner cavity of the tank body 1 to flush and clean the filter screen plate 7, and cooperate with the scraper 6 to realize automatic cleaning of the filter screen plate 7, which is reliable to use. Furthermore, since the plurality of nozzles 26 are evenly and spacedly arranged along the extension direction of the placement net tube 25, the filter screen plate 7 can be flushed and cleaned at multiple points, which can not only improve the cleaning efficiency of the filter screen plate 7, but also ensure the cleaning effect of the filter screen plate 7.

[0045] In one embodiment, a three-way pipe 27 is detachably mounted on the discharge pipe 4. Specifically, Figure 1 and Figure 3 As shown, one end of the three-way pipe 27 is connected to the discharge pipe 4, and the other two pipe openings are respectively connected to the water inlet pipe of the wastewater recovery tank and the air inlet pipe of the RTO regenerative thermal oxidizer, and the two pipe openings are installed with control valves, so that the staff can realize the diversion of waste gas and waste water. That is, when the filter screen plate 7 needs to be cleaned, the staff closes the control valve between the air inlet pipe of the RTO regenerative thermal oxidizer and the discharge pipe 4, so that the waste water cannot flow into the RTO regenerative thermal oxidizer, and opens the control valve between the wastewater recovery tank and the discharge pipe 4, so that the waste water can be recycled; on the contrary, the staff opens the control valve between the air inlet pipe of the RTO regenerative thermal oxidizer and the discharge pipe 4, and closes the control valve between the wastewater recovery tank and the discharge pipe 4, so that the waste gas cannot flow into the wastewater recovery tank, and the waste gas can only flow into the RTO regenerative thermal oxidizer, so as to realize the purification of the waste gas, and the structural design is simple and reasonable.

[0046] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A filtering device for an RTO regenerative thermal oxidizer, comprising a tank body (1) and a tank cover (2) detachably connected to the tank body (1), wherein the tank body (1) is provided with an air inlet pipe (3) and a discharge pipe (4), and the tank cover (2) is provided with a water inlet pipe (5) for communicating with an external water supply system, characterized in that: It also comprises a spraying assembly and a filtering assembly, wherein the spraying assembly is detachably mounted on the tank cover (2) and is in communication with the water inlet pipe (5), and the spraying assembly is used to spray water into the filtering assembly and the inner cavity of the tank body (1); the filtering assembly comprises a scraper (6) and a filter screen (7), wherein the scraper (6) is detachably mounted in the tank body (1) and is used to push and scrape the filter screen (7), and the filter screen (7) is rotatably mounted in the tank body (1) via a driving assembly.

2. A filtering device for an RTO regenerative thermal oxidation furnace according to claim 1, characterized in that: The tank body (1) comprises an upper tank body (8) and a lower tank body (9) which are detachably connected to each other. A limiting groove (10) for mounting the scraper (6) is provided at the tank mouth of the lower tank body (9). A connecting hole (11) is provided on the scraper (6). A mounting column (12) is formed on the side of the filter screen plate (7) facing the upper tank body (8). An end of the mounting column (12) away from the filter screen plate (7) passes through the connecting hole (11) and is detachably connected to an end cover (13).

3. A filtering device for an RTO regenerative thermal oxidation furnace according to claim 2, characterized in that: The outer wall of the filter screen plate (7) is provided with gear teeth along its circumference, a through hole (14) is provided on the outer wall of the lower tank body (9) at a position corresponding to the filter screen plate (7), a mounting frame (15) is provided on the outer wall of the upper tank body (8) at a position corresponding to the through hole (14), the driving assembly comprises a motor (16), a transmission shaft (17), a driving gear (18) and a driven gear (19), the motor (16) is vertically and detachably mounted on the mounting frame (15), the two ends of the transmission shaft (17) are detachably connected to the output end of the motor (16) and the driving gear (18), and the driven gear (19) is rotatably mounted on the mounting frame (15). It is mounted at the through hole (14), and the driven gear (19) is meshed with the gear teeth on the driving gear (18) and the filter screen plate (7) respectively.

4. A filtering device for an RTO regenerative thermal oxidation furnace according to claim 3, characterized in that: An annular protrusion (23) for covering the through hole (14) is formed on the filter screen plate (7).

5. A filtering device for an RTO regenerative thermal oxidation furnace according to claim 4, characterized in that: A protective cover (20) for shielding the driving gear (18), the driven gear (19) and the through hole (14) is arranged on the outer wall of the lower tank body (9); a cover plate (21) is detachably mounted on the top of the protective cover (20); and a sealing ring (22) is arranged between the cover plate (21) and the protective cover (20).

6. A filtering device for an RTO regenerative thermal oxidation furnace according to claim 5, characterized in that: A support frame (24) is detachably mounted on the outer wall of the lower tank body (9).

7. A filtering device for an RTO regenerative thermal oxidation furnace according to any one of claims 1 to 6, characterized in that: The spray assembly comprises a placement net tube (25) and a plurality of spray heads (26) connected to the placement net tube (25); the placement net tube (25) is connected to the water inlet pipe (5); and the plurality of spray heads (26) are evenly and spacedly arranged along the extension direction of the placement net tube (25).

8. A filtering device for an RTO regenerative thermal oxidation furnace according to any one of claims 1 to 6, characterized in that: A three-way pipe (27) is detachably mounted on the discharge pipe (4).

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