RTO waste gas treatment device and treatment method thereof

Abstract

The present invention discloses an RTO waste gas treatment device and a treatment method thereof, comprising a combustion chamber, wherein two interfaces are symmetrically arranged at the bottom of the combustion chamber for installing a ceramic preheater; a Karman vortex street combustion assembly with a laterally adjustable position is installed in the middle of the combustion chamber, for forming the waste gas into a Karman vortex street vortex flow for combustion; two push flow assemblies that can be raised and lowered are installed inside the combustion chamber located on both sides of the Karman vortex street combustion assembly, for pushing the waste gas from the upper part downward, and the waste gas passes under the push flow assembly and is sent to the direction of the Karman vortex street combustion assembly; two combustion stoves are fixedly installed inside the combustion chamber just above the two interfaces, and the present invention relates to the field of waste gas treatment technology. The present invention solves the problem that the existing combustion chamber burns at the top, and the high-temperature gas flows concentratedly at the top, and the unburned gas is deposited below and cannot be fully burned.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and in particular to an RTO waste gas treatment device and a treatment method thereof. Background Art

[0002] RTO (Regenerative Thermal Oxidizer) waste gas treatment technology is an efficient method for treating organic waste gas.

[0003] RTO is mainly composed of a combustion chamber, two heat storage chambers and a switching valve. Its working process is divided into two stages:

[0004] Intake stage: The organic waste gas enters a heat storage chamber, is preheated and then enters the combustion chamber. At high temperatures (generally 760℃-850℃), the organic matter in the waste gas is oxidized and decomposed into carbon dioxide and water.

[0005] Heat storage stage: The high-temperature gas after combustion enters another heat storage chamber and transfers heat to the heat storage body, causing the heat storage body to heat up, while the high-temperature gas itself is discharged after its temperature drops.

[0006] By switching the switching valve, the two heat storage chambers are alternately fed with air, and the two stages are continuously cycled to achieve the purpose of continuous treatment of exhaust gas.

[0007] At present, most combustion chambers burn at the top, and this combustion method causes high-temperature gas to flow concentrated at the top. Due to the characteristics of the gas, unburned gas will be deposited below, so that gases in different states cannot be fully mixed. This phenomenon greatly affects the efficiency and effect of exhaust gas treatment. On the one hand, the exhaust gas that is not fully burned cannot be effectively treated and may be directly discharged into the environment, causing atmospheric pollution. On the other hand, incomplete combustion also means a waste of energy and increases the cost of exhaust gas treatment. In addition, this uneven gas distribution may also lead to uneven temperature distribution inside the combustion chamber, affecting the service life and stability of the equipment. Therefore, there is an urgent need for an RTO exhaust gas treatment device and a treatment method thereof, which can solve the problem that the gas in the existing combustion chamber cannot be fully burned and improve the efficiency and quality of exhaust gas treatment. Summary of the invention

[0008] In order to solve the problem that the existing combustion chamber burns at the top, and the high-temperature gas flows concentrated at the top, and the unburned gas is deposited below and cannot be fully burned, the purpose of the present invention is to provide an RTO exhaust gas treatment device and a treatment method thereof.

[0009] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an RTO waste gas treatment device, comprising a combustion chamber, wherein two interfaces are symmetrically arranged at the bottom of the combustion chamber for installing a ceramic preheating body; a Karman vortex street combustion assembly with a laterally adjustable position is installed in the middle of the combustion chamber, which is used to form a Karman vortex street vortex flow from the waste gas for combustion; two liftable push flow assemblies are installed inside the combustion chamber on both sides of the Karman vortex street combustion assembly, which are used to push the upper waste gas downward, and the waste gas is sent over the bottom of the push flow assembly in the direction of the Karman vortex street combustion assembly; two combustion cooktops are fixedly installed inside the combustion chamber directly above the two interfaces.

[0010] Preferably, the flow pushing component includes a rectangular block, a rectangular hole is vertically opened on the side wall of the rectangular block, the inner wall of the rectangular hole is rotatably connected with two rotating shafts arranged up and down, the outer walls of the two rotating shafts are fixedly sleeved with four sprockets, two chains are meshed on the four sprockets, the outer walls of the two chains are jointly fixedly connected with a flexible ceramic fiber belt, and the outer wall of the flexible ceramic fiber belt is installed with evenly distributed and elastically foldable push plates; an installation groove is opened on the rectangular block, and a first motor is fixedly installed inside the installation groove, and the output end of the first motor is axially connected to the end of one of the rotating shafts.

[0011] Preferably, a rectangular plate is fixedly connected to the inner wall of the rectangular hole near the port on one side of the interface, and a space is set between the top of the rectangular plate and the top of the rectangular hole for guiding the exhaust gas; a strip plate is fixedly connected to the inner wall of the rectangular hole near the side of the Karman vortex combustion component, and the bottom of the strip plate is set as an arc for cooperating with the push plate to fold the strip plate vertically downward; the push plate and the top of the rectangular hole are in a blocking fit, and a space is set between the push plate and the bottom of the rectangular hole.

[0012] Preferably, the flow-pushing assembly also includes a storage bin with an opening at the bottom, a hydraulic cylinder is fixedly installed on the top of the storage bin, a telescopic end of the bottom of the hydraulic cylinder is movably arranged inside the storage bin, and the bottom of the telescopic end is fixedly connected to the top of the rectangular block, a strip opening is provided on the top surface of the combustion chamber located at the bottom opening of the storage bin, and the inner wall of the strip opening is slidably connected to the outer wall of the rectangular block; the top surface of the rectangular block is located inside the storage bin.

[0013] Preferably, a U-shaped groove is provided on one side of the push plate, and a connecting rod is fixedly connected to the inner wall of the U-shaped groove, and a mounting strip is rotatably connected to the outer wall of the connecting rod, and the interior of the mounting strip is provided with a cavity, and a torsion spring is provided on the outer wall of the connecting rod located inside the cavity of the mounting strip, and the two ends of the torsion spring are respectively fixedly connected to the outer wall of the connecting rod and the inner wall of the cavity of the mounting strip, and the mounting strip is fixedly connected to the outer wall of the flexible ceramic fiber belt, and the natural state of the torsion spring can maintain the push plate in a relatively vertical state with the flexible ceramic fiber belt.

[0014] Preferably, the Karman vortex combustion assembly includes a column with an adjustable horizontal position, the interior of the column is a cavity, and the outer wall of the column is fixedly connected with a double-sided rectangular combustion stove. During the translation of the column, the double-sided rectangular combustion stove can be synchronously flipped to the other side of the translation direction.

[0015] Preferably, the Karman vortex combustion assembly also includes a first U-shaped plate, a second U-shaped plate and a third U-shaped plate fixedly mounted on the top surface of the interior of the combustion chamber, a lead screw is rotatably connected to the inner wall of the first U-shaped plate, one end of the lead screw is fixedly connected to the first gear, the first gear is meshed with the second gear, the end shaft of the second gear is connected to the second motor, the second motor is fixedly mounted on the top of the combustion chamber, an opening is opened on the top of the combustion chamber, the second gear moves through the opening of the combustion chamber, an isolation cover is fixedly connected to the port at the top of the opening of the combustion chamber, the output shaft of the second motor rotates through a side wall of the isolation cover, and the second gear is located inside the isolation cover; the inner wall of the second U-shaped plate is fixedly connected to a guide rod, the guide rod The outer wall of the rod is slidably connected with a transmission platform that is threadedly connected to the outer wall of the lead screw, the side wall of the transmission platform is fixedly installed with a square tube, the bottom of the square tube is rotatably connected with a round tube, the outer wall of the round tube is sleeved with a gear plate that is fixedly connected to the top surface of the column, the outer wall of the round tube is fixedly connected to the top of the column, the side wall of the square tube is fixedly installed with a corrugated expansion tube connected to the interior thereof, the end of the corrugated expansion tube away from the square tube is connected to a gas connector, and the gas connector is fixedly connected to the side wall of the combustion chamber; the side wall of the third U-shaped plate is provided with teeth that mesh with the gear plate, the cavity of the column is connected to the double-sided rectangular combustion stove plate, which is used to supply gas to the double-sided rectangular combustion stove plate, and the bottom of the column is slidably matched with the bottom surface of the interior of the combustion chamber.

[0016] Preferably, a solenoid valve is fixedly installed on the top of the combustion chamber, and the solenoid valve is connected to the combustion stove.

[0017] A waste gas treatment method for an RTO waste gas treatment device comprises the following steps:

[0018] Step 1: ceramic preheaters are installed at two interfaces, two combustion cookers and Karman vortex combustion components are ignited and burned, and the heat generated by the combustion is transferred to the two ceramic preheaters;

[0019] Step 2: Set the two interfaces as interface A and interface B, and adjust the flow-pushing assembly of the Karman vortex combustion assembly close to the direction of interface A, so that the flow-pushing assembly close to the direction of interface A is located inside the combustion chamber, and the flow-pushing assembly close to the direction of interface B is lifted;

[0020] Step 3: The exhaust gas preheated by the ceramic preheater is fed into the A interface, and the combustion stove above the A interface performs primary combustion on the exhaust gas, and the high-temperature exhaust gas is concentrated at the top of the combustion chamber;

[0021] Step 4: The push flow component pushes the high-temperature exhaust gas from the upper part downward, and the exhaust gas passes under the push flow component and is sent to the direction of the Karman vortex street combustion component;

[0022] Step 5: the exhaust gas bypasses both sides of the Karman vortex street combustion component from bottom to top, and the exhaust gas forms a Karman vortex street vortex for centralized secondary combustion;

[0023] Step 6: The combustion stove above the B interface performs three-stage combustion on the exhaust gas to form purified gas, and the purified gas enters the ceramic preheating body from the B interface and is then discharged;

[0024] Step seven, the ceramic preheating body at the A interface will cool down as the normal temperature exhaust gas is delivered, and the ceramic preheating body at the B interface will absorb the heat in the purified gas to heat up, and the plug flow component of the Karman vortex combustion assembly close to the B interface is adjusted. The plug flow component close to the B interface is located inside the combustion chamber, and the plug flow component close to the A interface is lifted; synchronously switch to the B interface to deliver the exhaust gas preheated by the ceramic preheating body, and the ceramic preheating body at the A interface is used to discharge the purified gas.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention arranges the Karman vortex street combustion component to form a Karman vortex street vortex in the exhaust gas, the gas is fully mixed, and the vortex is concentrated toward both sides of the double-sided rectangular combustion stove plate for secondary combustion, thereby further improving the combustion efficiency.

[0027] The present invention pushes the upper high-temperature exhaust gas downward through the operation of the flexible ceramic fiber belt and the push plate, so that the exhaust gas flows more reasonably in the combustion chamber, avoids the high-temperature exhaust gas from being concentrated on the upper side, and improves the exhaust gas treatment effect.

[0028] After passing through the bottom of the exhaust gas push flow assembly, the exhaust gas bypasses the two sides of the column from bottom to top, and at the same time, the exhaust gas also moves from bottom to top toward the double-sided rectangular combustion cooker, thereby increasing the time of passing through the double-sided rectangular combustion cooker, thereby further improving the combustion efficiency.

[0029] In the process of adjusting the position of the column laterally, the double-sided rectangular combustion stove plate can be synchronously flipped to the other side of the translation direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0031] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0032] Figure 2 It is a schematic diagram of the structure of the present invention in section;

[0033] Figure 3It is a structural schematic diagram of one side of a rectangular block and rectangular plate of the present invention;

[0034] Figure 4 It is a structural schematic diagram of one side of the rectangular strip plate of the present invention;

[0035] Figure 5 It is a schematic structural diagram of the circulation of the flexible ceramic fiber belt of the present invention;

[0036] Figure 6 It is a structural schematic diagram of the push plate of the present invention;

[0037] Figure 7 It is a structural schematic diagram of the Karman vortex combustion assembly of the present invention;

[0038] Figure 8 A schematic diagram of the position of the combustion cooker plate of the present invention;

[0039] Fig. 9 For the present invention Figure 2 The structural diagram of part A in the figure;

[0040] Fig.10 For the present invention Figure 1 The structural diagram of part B;

[0041] Fig.11 For the present invention Figure 2 Schematic diagram of the structure of part C;

[0042] Fig.12 It is a schematic diagram of the exhaust gas bypassing both sides of the Karman vortex street combustion component of the present invention.

[0043] In the figure: 1, combustion chamber; 2, interface; 3, Karman vortex combustion assembly; 4, push flow assembly; 5, combustion cooker; 301, column; 302, double-sided rectangular combustion cooker; 303, first U-shaped plate; 304, second U-shaped plate; 305, third U-shaped plate; 306, lead screw; 307, first gear; 308, second gear; 309, second motor; 310, isolation cover; 311, guide rod; 312, transmission platform; 313, square tube; 314, round tube; 315, gear Disk; 316, teeth; 317, bellows; 318, gas connector; 401, rectangular block; 402, rectangular hole; 403, rotating shaft; 404, sprocket; 405, chain; 406, flexible ceramic fiber belt; 407, push plate; 408, first motor; 409, rectangular plate; 410, strip plate; 411, storage bin; 412, hydraulic cylinder; 4071, U-shaped groove; 4072, connecting rod; 4073, mounting strip; 4074, torsion spring; 501, solenoid valve. DETAILED DESCRIPTION

[0044] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0045] See also Figures 1 to 12 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0046] The present invention provides a technical solution: an RTO waste gas treatment device, which mainly includes a combustion chamber 1, an interface 2, a Karman vortex combustion component 3, a plug flow component 4 and a combustion cooker 5.

[0047] Combustion chamber 1: As the main place for exhaust gas treatment, two interfaces 2 are symmetrically arranged at the bottom for installing ceramic preheaters. A Karman vortex combustion assembly 3 with a laterally adjustable position is installed in the middle of the combustion chamber 1. Two combustion cookers 5 are fixedly installed inside just above the two interfaces 2. Liftable push flow assemblies 4 are installed on both sides of the Karman vortex combustion assembly 3. A solenoid valve 501 is fixedly installed on the top of the combustion chamber 1 and connected to the combustion cooker 5. The solenoid valve 501 is connected to the fuel supply equipment.

[0048] The bottom of the interface 2 is used to connect the ceramic preheater so that the exhaust gas can be preheated before entering the combustion chamber 1, thereby saving fuel consumption for heating the exhaust gas and improving the exhaust gas combustion efficiency.

[0049] The Karman vortex combustion assembly 3 comprises a column 301 whose horizontal position can be adjusted. The interior of the column 301 is a cavity, and a double-sided rectangular combustion stove plate 302 is fixedly connected to the outer wall.

[0050] During the translation of the column 301, the double-sided rectangular combustion stove plate 302 can be turned to the other side of the translation direction synchronously.

[0051] A first U-shaped plate 303 , a second U-shaped plate 304 and a third U-shaped plate 305 are fixedly mounted on the top surface inside the combustion chamber 1 .

[0052] The inner wall of the first U-shaped plate 303 is rotatably connected with a lead screw 306, one end of the lead screw 306 is connected to a first gear 307, the first gear 307 is meshed with a second gear 308, the end of the second gear 308 is axially connected to a second motor 309, an opening is opened at the top of the combustion chamber 1, the second gear 308 movably passes through the opening, the top port of the opening is fixedly connected to an isolation cover 310, the output shaft of the second motor 309 rotates through a side wall of the isolation cover 310, and the second gear 308 is located inside the isolation cover 310. The inner wall of the second U-shaped plate 304 is fixedly connected with a guide rod 311, the outer wall of the guide rod 311 is slidably connected with a transmission platform 312 threadedly connected with the outer wall of the lead screw 306, the second motor 309 is started, and the transmission is sequentially transmitted to the second gear 308, the first gear 307 and the lead screw 306, and the position of the transmission platform 312 can be adjusted under the guidance of the guide rod 311.

[0053] The side wall of the transmission platform 312 is fixedly installed with a square tube 313, and the bottom of the square tube 313 is rotatably connected with a round tube 314. The outer wall of the round tube 314 is sleeved with a gear plate 315 fixedly connected to the top surface of the column 301. The outer wall of the round tube 314 is fixedly connected to the top of the column 301. The side wall of the square tube 313 is fixedly installed with a corrugated telescopic tube 317 connected to the inside thereof. The end of the corrugated telescopic tube 317 away from the square tube 313 is connected with a gas connector 318. The gas connector 318 is fixedly connected to the side wall of the combustion chamber 1. The gas connector 318 is used to connect the gas supply equipment. The side wall of the third U-shaped plate 305 is provided with teeth 316 meshing with the gear plate 315. The cavity of the column 301 is connected to the double-sided rectangular combustion stove 302, which is used to supply gas to the double-sided rectangular combustion stove 302. The bottom of the column 301 is in sliding fit with the bottom surface inside the combustion chamber 1.

[0054] Ignitors are installed in both the double-sided rectangular combustion cooker plate 302 and the combustion cooker plate 5, which will not be described in detail.

[0055] The transmission platform 312 moves to drive the square tube 313 to move horizontally, and the gear plate 315 meshes with the teeth 316 so that the column 301 can rotate synchronously during the translation process, thereby realizing the flipping of the double-sided rectangular combustion stove plate 302.

[0056] Streaming component 4:

[0057] The invention comprises a rectangular block 401, a rectangular hole 402 is vertically provided on the side wall of the rectangular block 401, two rotating shafts 403 arranged up and down are rotatably connected to the inner wall of the rectangular hole 402, four sprocket wheels 404 are fixedly sleeved on the outer walls of the two rotating shafts 403, two chains 405 are meshed on the four sprocket wheels 404, a flexible ceramic fiber belt 406 is fixedly connected to the outer walls of the two chains 405, and a push plate 407 which is evenly distributed and can be elastically folded is installed on the outer wall of the flexible ceramic fiber belt 406. An installation slot is provided on the rectangular block 401, and a first motor 408 is fixedly installed inside the installation slot, and the output end of the first motor 408 is axially connected to the end of one of the rotating shafts 403.

[0058] The first motor 408 can drive the rotating shaft 403 to rotate, and then drive the two chains 405 to circulate through the four sprockets 404, so that the flexible ceramic fiber belt 406 circulates.

[0059] A rectangular plate 409 is fixedly connected to the inner wall of the rectangular hole 402 near the port on one side of the interface 2, and a space is set between the top of the rectangular plate 409 and the top of the rectangular hole 402 for guiding the exhaust gas. A strip plate 410 is fixedly connected to the inner wall of the rectangular hole 402 near the Karman vortex combustion assembly 3, and the bottom of the strip plate 410 is set as an arc, which is used to cooperate with the push plate 407 to fold the strip plate 410 vertically downward. The push plate 407 is in a blocking fit with the top of the rectangular hole 402, and a space is set between the push plate 407 and the bottom of the rectangular hole 402.

[0060] It also includes a storage bin 411 with an opening at the bottom, a hydraulic cylinder 412 is fixedly installed on the top of the storage bin 411, a telescopic end at the bottom of the hydraulic cylinder 412 is movably arranged inside the storage bin 411, and the bottom of the telescopic end is fixedly connected to the top of the rectangular block 401, a strip opening is opened on the top surface of the combustion chamber 1 located at the bottom opening of the storage bin 411, and the inner wall of the strip opening is slidably connected to the outer wall of the rectangular block 401. The top surface of the rectangular block 401 is located inside the storage bin 411.

[0061] A U-shaped groove 4071 is provided on one side of the push plate 407, and a connecting rod 4072 is fixedly connected to the inner wall of the U-shaped groove 4071, and a mounting strip 4073 is rotatably connected to the outer wall of the connecting rod 4072, and the interior of the mounting strip 4073 is arranged as a cavity, and a torsion spring 4074 is sleeved on the outer wall of the connecting rod 4072 located inside the cavity of the mounting strip 4073, and two ends of the torsion spring 4074 are respectively fixedly connected to the outer wall of the connecting rod 4072 and the inner wall of the cavity of the mounting strip 4073, and the mounting strip 4073 is fixedly connected to the outer wall of the flexible ceramic fiber belt 406, and the natural state of the torsion spring 4074 can maintain the push plate 407 in a relatively vertical state with the flexible ceramic fiber belt 406.

[0062] A waste gas treatment method for an RTO waste gas treatment device comprises the following steps:

[0063] Step 1: The two interfaces 2 are provided with ceramic preheaters, and the two combustion cooktops 5 and the Karman vortex combustion assembly 3 are ignited and burned, and the heat generated by the combustion is transferred to the two ceramic preheaters;

[0064] Step 2, setting the two interfaces to be interface A and interface B respectively, starting the second motor 309, adjusting the cylinder 301 in the Karman vortex combustion assembly 3 to be close to the flow-pushing assembly 4 in the direction of the interface A, the cylinder 301 is close to the rectangular hole 402, and the rectangular block 401 of the flow-pushing assembly 4 close to the direction of the interface A is located inside the combustion chamber 1, and the hydraulic cylinder 412 lifts the rectangular block 401 of the flow-pushing assembly 4 close to the direction of the interface B and stores it in the storage bin 411 to avoid blocking the gas flow;

[0065] Step 3: The exhaust gas preheated by the ceramic preheater is fed into the A interface, and the combustion stove 5 above the A interface performs primary combustion on the exhaust gas, and the high-temperature exhaust gas is concentrated on the top of the combustion chamber 1;

[0066] Step 4: The push flow assembly 4 drives the flattened push plate 407 to move downward through the operation of the flexible ceramic fiber belt 406, pushing the upper high-temperature exhaust gas downward, and the exhaust gas passes through the space between the lowest push plate 407 and the bottom of the rectangular hole 402, and is sent to the direction of the column 301;

[0067] Step 5: the exhaust gas bypasses both sides of the column 301 from bottom to top, and the exhaust gas forms a Karman vortex street vortex, so that the gas is fully mixed, and at the same time the vortex is concentrated toward both sides of the double-sided rectangular combustion cooker 302 for secondary combustion;

[0068] Step 6: The combustion stove 5 above the B interface performs three-stage combustion on the exhaust gas to form purified gas, and the purified gas enters the ceramic preheating body from the B interface and is then discharged;

[0069] Step seven, the ceramic preheating body at the A interface will cool down as the normal temperature exhaust gas is fed in, and the ceramic preheating body at the B interface will absorb the heat in the purified gas to heat up, and the plug flow component 4 of the Karman vortex combustion component 3 is adjusted to be close to the B interface. The plug flow component 4 close to the B interface is located inside the combustion chamber 1, and the plug flow component 4 close to the A interface is lifted; synchronously switch to the B interface to feed the exhaust gas preheated by the ceramic preheating body, and the ceramic preheating body at the A interface is used to discharge the purified gas.

[0070] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An RTO waste gas treatment device, comprising a combustion chamber (1), wherein the bottom of the combustion chamber (1) is symmetrically provided with two interfaces (2) for installing a ceramic preheater; characterized in that: A Karman vortex street combustion assembly (3) whose position can be adjusted laterally is installed in the middle of the combustion chamber (1) for forming a Karman vortex street vortex flow from the exhaust gas for combustion; two flow push assemblies (4) which can be raised and lowered are installed in the combustion chamber (1) on both sides of the Karman vortex street combustion assembly (3) for pushing the exhaust gas from the upper part downward, so that the exhaust gas passes under the flow push assemblies (4) and is sent in the direction of the Karman vortex street combustion assembly (3); two combustion cooktops (5) are fixedly installed in the combustion chamber (1) directly above the two interfaces (2); The flow-pushing component (4) comprises a rectangular block (401), a rectangular hole (402) is vertically opened on the side wall of the rectangular block (401), two chains (405) running vertically and cyclically are installed in the rectangular hole (402), a flexible ceramic fiber belt (406) is fixedly connected to the outer walls of the two chains (405), and evenly distributed push plates (407) are installed on the outer walls of the flexible ceramic fiber belt (406), and a first motor (408) for driving the two chains (405) to run is installed in the rectangular block (401); The Karman vortex combustion assembly (3) comprises a column (301) whose horizontal position can be adjusted, a double-sided rectangular combustion cooker (302) being fixedly connected to the outer wall of the column (301), and during the translation of the column (301), the double-sided rectangular combustion cooker (302) can be synchronously flipped to the other side of the translation direction, and a second motor (309) for synchronously driving the column (301) to translate and rotate is fixedly mounted on the top of the combustion chamber (1).

2. The RTO waste gas treatment device according to claim 1, characterized in that: The inner wall of the rectangular hole (402) is rotatably connected to two rotating shafts (403) arranged up and down, and the outer walls of the two rotating shafts (403) are fixedly sleeved with four sprocket wheels (404), and the four sprocket wheels (404) are meshed with two chains (405); a mounting groove is provided on the rectangular block (401), and the mounting groove is used to fix and install a first motor (408), and the output end of the first motor (408) is axially connected to the end of one of the rotating shafts (403).

3. The RTO waste gas treatment device according to claim 2, characterized in that: A rectangular plate (409) is fixedly connected to the inner wall of the rectangular hole (402) at a port on one side close to the interface (2), and a space is provided between the top of the rectangular plate (409) and the top of the rectangular hole (402) for guiding the exhaust gas; a strip plate (410) is fixedly connected to the inner wall of the rectangular hole (402) on a side close to the Karman vortex combustion assembly (3), and the bottom of the strip plate (410) is arranged in an arc shape for engaging with the push plate (407) to fold the strip plate (410) vertically downward; the push plate (407) and the top of the rectangular hole (402) are engaged in an engaging manner, and a space is provided between the push plate (407) and the bottom of the rectangular hole (402).

4. The RTO waste gas treatment device according to claim 2, characterized in that: The flow-pushing assembly (4) further comprises a storage bin (411) with an opening at the bottom, a hydraulic cylinder (412) being fixedly mounted on the top of the storage bin (411), a telescopic end at the bottom of the hydraulic cylinder (412) being movably arranged inside the storage bin (411), and the bottom of the telescopic end being fixedly connected to the top of the rectangular block (401), a strip opening being formed on the top surface of the combustion chamber (1) located at the bottom opening of the storage bin (411), and an inner wall of the strip opening being slidably connected to an outer wall of the rectangular block (401); and the top surface of the rectangular block (401) being located inside the storage bin (411).

5. The RTO waste gas treatment device according to claim 2, characterized in that: A U-shaped groove (4071) is provided on one side of the push plate (407), and a connecting rod (4072) is fixedly connected to the inner wall of the U-shaped groove (4071), and a mounting strip (4073) is rotatably connected to the outer wall of the connecting rod (4072), and the interior of the mounting strip (4073) is provided with a cavity, and a torsion spring (4074) is sleeved on the outer wall of the connecting rod (4072) located inside the cavity of the mounting strip (4073), and two ends of the torsion spring (4074) are respectively fixedly connected to the outer wall of the connecting rod (4072) and the inner wall of the cavity of the mounting strip (4073), and the mounting strip (4073) is fixedly connected to the outer wall of the flexible ceramic fiber belt (406), and the natural state of the torsion spring (4074) can maintain the push plate (407) in a relatively vertical state with the flexible ceramic fiber belt (406).

6. The RTO waste gas treatment device according to claim 1, characterized in that: The Karman vortex combustion assembly (3) further comprises a first U-shaped plate (303), a second U-shaped plate (304) and a third U-shaped plate (305) fixedly mounted on the top surface of the combustion chamber (1); a lead screw (306) is rotatably connected to the inner wall of the first U-shaped plate (303); one end of the lead screw (306) is fixedly connected to a first gear (307); the first gear (307) is meshed with a second gear (308); an end of the second gear (308) is axially connected to an output end of a second motor (309); and the combustion chamber ( The second gear (308) is movable through the opening of the combustion chamber (1); an isolation cover (310) is fixedly connected to the port at the top of the opening of the combustion chamber (1); an output shaft of the second motor (309) rotates through a side wall of the isolation cover (310); and the second gear (308) is located inside the isolation cover (310); a guide rod (311) is fixedly connected to the inner wall of the second U-shaped plate (304); and an outer wall of the guide rod (311) is slidably connected to the outer wall of the lead screw (306). A transmission platform (312) is threadedly connected, a square tube (313) is fixedly installed on the side wall of the transmission platform (312), a round tube (314) is rotatably connected to the bottom of the square tube (313), the outer wall of the round tube (314) is sleeved with a gear plate (315) fixedly connected to the top surface of the column (301), the outer wall of the round tube (314) is fixedly connected to the top of the column (301), and a corrugated telescopic tube (317) connected to the inside of the square tube (313) is fixedly installed on the side wall of the square tube (313), and the corrugated telescopic tube (317) is away from the square tube. One end of the column (313) is connected to a gas connector (318), and the gas connector (318) is fixedly connected to the side wall of the combustion chamber (1); the side wall of the third U-shaped plate (305) is provided with teeth (316) that mesh with the gear plate (315); the interior of the column (301) is provided with a cavity, and the cavity of the column (301) is connected to the double-sided rectangular combustion stove (302) for supplying gas to the double-sided rectangular combustion stove (302); the bottom of the column (301) is in sliding fit with the bottom surface of the interior of the combustion chamber (1).

7. The RTO waste gas treatment device according to claim 6, characterized in that: A solenoid valve (501) is fixedly mounted on the top of the combustion chamber (1), and the solenoid valve (501) is connected to the combustion stove (5).

8. A method for treating waste gas of an RTO waste gas treatment device, characterized in that: The RTO waste gas treatment device according to any one of claims 1 to 7 comprises the following steps: Step 1: ceramic preheaters are installed on the two interfaces (2), two combustion cooktops (5) and a Karman vortex combustion assembly (3) are ignited and burned, and the heat generated by the combustion is transferred to the two ceramic preheaters; Step 2, setting the two interfaces to be interface A and interface B respectively, adjusting the flow-pushing assembly (4) of the Karman vortex combustion assembly (3) close to the direction of interface A, the flow-pushing assembly (4) close to the direction of interface A is located inside the combustion chamber (1), and the flow-pushing assembly (4) close to the direction of interface B is raised; Step 3: the exhaust gas preheated by the ceramic preheating body is fed into the A interface, and the combustion stove (5) above the A interface performs primary combustion on the exhaust gas, and the high-temperature exhaust gas is concentrated at the top of the combustion chamber (1); Step 4: The push flow component (4) pushes the high-temperature exhaust gas from the upper portion downward, and the exhaust gas passes under the push flow component (4) and is sent toward the direction of the Karman vortex combustion component (3); Step 5, the exhaust gas bypasses the two sides of the Karman vortex street combustion component (3) from bottom to top, and the exhaust gas forms a Karman vortex street vortex flow for centralized secondary combustion; Step 6: The combustion stove (5) above the B interface performs three-stage combustion on the exhaust gas to form purified gas, and the purified gas enters the ceramic preheating body from the B interface and is then discharged; Step 7: the ceramic preheating body at the A interface will cool down as the normal temperature exhaust gas is fed in, and the ceramic preheating body at the B interface will absorb the heat in the purified gas and heat up, and the plug flow component (4) close to the B interface of the Karman vortex combustion component (3) is adjusted, and the plug flow component (4) close to the B interface is located inside the combustion chamber (1), and the plug flow component (4) close to the A interface is raised; The B interface is switched synchronously to feed the waste gas preheated by the ceramic preheater, and the ceramic preheater at the A interface is used to discharge the purified gas.

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