Regenerative incineration RTO equipment for waste gas treatment

Abstract

The utility model discloses heat accumulating type incineration RTO equipment for waste gas treatment, which relates to the technical field of heat accumulating type incineration RTO equipment and comprises a thermal incinerator and a heat exchange component, and the thermal incinerator consists of a combustion chamber, a heat accumulating cylinder, a waste gas conveying pipe, a catalyst conveying pipe, a switching electromagnetic valve, a fire maker and a smoke exhaust pipe. The heat exchange assembly is used for conducting heat recovery on smoke exhausted through the smoke exhaust pipe. The heat exchange assembly comprises a heat recovery unit and a reverse blowing unit; the heat recovery unit is used for recovering the heat of the flue gas and preheating the waste gas and a combustion improver by utilizing the heat of the flue gas; the back flushing unit is used for conducting back flushing cleaning operation on the heat recovery unit. By arranging the heat exchange assembly, waste gas, a catalyst and cold water can be heated through waste heat of flue gas, then preheating of the waste gas and the catalyst is achieved, heated water can be conveyed to other industrial equipment to be used, and the utilization rate of the waste heat of the flue gas is further increased through two times of heat exchange of the flue gas.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heat accumulating incineration RTO equipment, and specifically relates to a heat accumulating incineration RTO equipment for waste gas treatment. BACKGROUND

[0002] The heat accumulating thermal incinerator is also called a heat accumulating oxidation furnace, and is abbreviated as RTO. The principle is that organic waste gas is heated to above 760 degrees Celsius, so that VOC in the waste gas is oxidized and decomposed into carbon dioxide and water. The high-temperature gas generated by oxidation flows through a specially designed ceramic heat accumulator, so that the ceramic body is heated and "accumulates heat". This "heat accumulation" is used to preheat the subsequent organic waste gas, thereby saving fuel consumption for heating the waste gas. The ceramic heat accumulator should be divided into two or more zones or chambers. Each heat accumulating chamber undergoes heat accumulation, heat release, cleaning and other procedures in turn, and continuously works in a cycle. The heat accumulating chamber should be immediately cleaned by introducing part of the clean exhaust gas that has been treated and qualified (to ensure that the VOC removal rate is above 95%) after "heat release". Only after the cleaning is completed can the "heat accumulation" procedure be entered. The flue gas generated by the combustion of the heat accumulating thermal incinerator still has a temperature of above 200 degrees Celsius. Most enterprises directly discharge this part of high-temperature flue gas, resulting in waste of energy.

[0003] China Patent No. CN218379441U discloses a three-bed heat accumulating incineration RTO equipment for treating VOCs, which comprises an oxidation furnace body. The oxidation furnace body comprises a combustion chamber, a heat accumulating cylinder is arranged in the combustion chamber, a heat accumulating bed is arranged in the heat accumulating cylinder, an igniter is arranged in the combustion chamber, a preheating box is arranged on the side of the combustion chamber, a first air inlet pipe and a second air inlet pipe are arranged in the preheating box, a first air outlet pipe is connected to one end of the first air inlet pipe, a first communication pipe is connected to the other end of the first air inlet pipe, a second air outlet pipe is connected to one end of the second air inlet pipe, a second communication pipe is connected to the other end of the second air inlet pipe, a blower is arranged on one side of the second air outlet pipe, and a preheating pipe is arranged between the combustion chamber and the preheating box. By arranging three heat accumulating cylinders and heat accumulating beds, the heat accumulation of VOC waste gas and combustion-supporting agent is facilitated, the combustion of VOCs is more complete, the VOC waste gas and combustion-supporting agent entering the preheating box are preheated, and air is blown in as combustion-supporting agent by the blower.

[0004] In the above scheme, the heat of flue gas is recovered by the preheating box, and the waste gas and combustion-supporting agent are preheated to realize the recycling of heat energy. However, the recovery of flue gas heat is achieved by absorbing and transferring water, and the water in the preheating box will be rapidly heated and evaporated and discharged due to the high temperature of flue gas (200 degrees Celsius), which not only leads to a large amount of waste of heat, but also leads to waste of water resources. The recycling rate of heat energy is low. Therefore, a heat accumulating incineration RTO equipment for waste gas treatment is provided. UTILITY MODEL CONTENTS

[0005] The utility model disc purposes at: in order to solve the problem in above -mentioned background, provide a kind of for waste gas treatment's regenerative incineration RTO equipment.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of for waste gas treatment's regenerative incineration RTO equipment, including by combustion chamber, heat storage cylinder, waste gas delivery pipe, catalyst delivery pipe, switching electromagnetic valve, lighter, flue gas pipe group of incinerator, the heat storage cylinder is provided with three, three the heat storage cylinder is horizontally distributed and is fixed in combustion chamber interior, the waste gas delivery pipe, catalyst delivery pipe distribute in combustion chamber bottom, and the waste gas delivery pipe, catalyst delivery pipe are communicated with three heat storage cylinders respectively by three switching electromagnetic valves, the lighter is fixedly installed in combustion chamber top middle part, the flue gas pipe distributes in combustion chamber top and is communicated with combustion chamber inner cavity, the outside one side of the combustion chamber is provided with heat exchange component, and the heat exchange component is used to carry out heat recovery to the flue gas that is discharged by flue gas pipe;

[0007] The heat exchange component includes heat recovery unit, back flushing unit;

[0008] The heat recovery unit carries out heat recovery to flue gas, and simultaneously preheats waste gas and combustion-supporting agent using the heat of flue gas;

[0009] The back flushing unit is used to carry out back flushing cleaning operation to heat recovery unit;

[0010] The heat recovery unit includes heat exchange tank, partition plate, flue gas inlet, first heat exchange bin, buffer bin, second heat exchange bin, flue gas outlet, flue gas outlet, heat exchange pipe, vertical partition, waste gas inlet pipe, catalyst inlet pipe;

[0011] The partition plate is provided with four, four the partition plate is distributed and is fixed in the inside of heat exchange tank along vertical direction, and the partition plate divides heat exchange tank inner cavity into flue gas inlet, first heat exchange bin, buffer bin, second heat exchange bin, flue gas outlet in order from bottom to top;

[0012] The flue gas outlet is fixed in the top of heat exchange tank, and it is communicated with the inner cavity of flue gas outlet;

[0013] The heat exchange pipe is distributed in the inside of first heat exchange bin and second heat exchange bin, and upper end and lower end are fixedly connected with partition plate, and the partition plate is provided with through hole communicated with heat exchange pipe;

[0014] The vertical partition is arranged on the inner side of the first heat exchange bin and is fixedly connected with the upper and lower two partition plates and the inner wall side of the heat exchange tank, and is used for separating the first heat exchange bin into left and right preheating chambers, the waste gas inlet pipe and the catalyst inlet pipe penetrate from one side of the outer side of the heat exchange tank to the inner side of the heat exchange tank and are respectively communicated with the left preheating chamber and the right preheating chamber, the waste gas delivery pipe and the catalyst delivery pipe penetrate the heat exchange tank and are respectively communicated with the left preheating chamber and the right preheating chamber at the end far away from the combustion chamber, and the exhaust pipe penetrates the heat exchange tank and is communicated with the flue gas inlet bin at the end far away from the combustion chamber.

[0015] The flue gas is discharged through the channel composed of the exhaust pipe, the flue gas inlet bin, the heat exchange pipe and the exhaust port, so that the waste gas and the combustion-supporting agent in the left preheating chamber and the right preheating chamber are preheated.

[0016] As a further scheme of the utility model, the heat recovery unit further comprises a water inlet pipe and a water outlet pipe.

[0017] The water inlet pipe and the water outlet pipe are arranged on the two sides of the outer side of the heat exchange tank and penetrate the heat exchange tank and are communicated with the inner cavity of the second heat exchange bin, and the ports of the water inlet pipe and the water outlet pipe are respectively located at the bottom end and the top end of the second heat exchange bin.

[0018] Water is injected into the second heat exchange bin through the water inlet pipe, the flue gas flowing through the heat exchange pipe arranged in the second heat exchange bin is used for heating the water in the second heat exchange bin, so that further heat recovery of the flue gas is realized.

[0019] As a further scheme of the utility model, the back blowing unit comprises a first back blowing nozzle and a first suction pipe.

[0020] The first back blowing nozzle is arranged in the flue gas outlet bin, the input end of the first back blowing nozzle penetrates to one side of the outer side of the heat exchange tank, a plurality of nozzles matched with the number of the heat exchange pipes in the second heat exchange bin are arranged on the first back blowing nozzle, and the positions of the nozzles correspond to the positions of the heat exchange pipes in the second heat exchange bin one by one, high-pressure air is sprayed out through the nozzles on the first back blowing nozzle, and the heat exchange pipes in the second heat exchange bin are back blown and cleaned.

[0021] The first suction pipe penetrates from one side of the outer side of the heat exchange tank to the inner side of the buffer bin, and is used for sucking the impurities back blown from the heat exchange pipes in the second heat exchange bin.

[0022] As a further scheme of the utility model, the back blowing unit further comprises a second back blowing pipe and a second suction pipe.

[0023] The second back-blowing pipe is arranged inside the buffer bin, and the input end of the second back-blowing pipe penetrates to the outside of the heat exchange tank, a plurality of nozzles matched with the number of the heat exchange pipes inside the first heat exchange bin are arranged on the second back-blowing pipe, and the positions of the nozzles correspond to the positions of the heat exchange pipes inside the first heat exchange bin one by one, and the high-pressure air sprayed by the nozzles on the second back-blowing pipe is used for back-blowing and cleaning the heat exchange pipes inside the first heat exchange bin.

[0024] The second suction pipe penetrates from the outside of the heat exchange tank to the inside of the flue gas inlet bin, and is used for sucking the impurities back-blowing from the heat exchange pipes inside the first heat exchange bin.

[0025] As a further scheme of the utility model, the ports of the waste gas inlet pipe and the catalyst inlet pipe are located at the inside bottom of the first heat exchange bin, and the ports of the waste gas delivery pipe and the catalyst delivery pipe are located at the inside top of the first heat exchange bin.

[0026] Compared with the prior art, the utility model has the beneficial effects that:

[0027] By arranging the heat exchange assembly, the waste gas, the catalyst and the cold water can be heated by the flue gas waste heat, so that the waste gas and the catalyst are preheated, and the heated water can be delivered to other industrial equipment for use, and the utilization rate of the flue gas waste heat is further improved by twice heat exchange of the flue gas. BRIEF DESCRIPTION OF DRAWINGS

[0028] Fig. 1 It is a structural schematic view of the utility model;

[0029] Fig. 2 It is a structural schematic view of another view of the utility model;

[0030] Fig. 3 It is a structural sectional view of the utility model;

[0031] Fig. 4 It is a side structural sectional view of the heat exchange tank of the utility model.

[0032] In the drawing: 1, thermal incinerator; 101, combustion chamber; 102, heat storage cylinder; 103, waste gas delivery pipe; 104, catalyst delivery pipe; 105, switching electromagnetic valve; 106, igniter; 107, exhaust pipe; 2, heat exchange assembly; 201, heat exchange tank; 202, partition plate; 203, flue gas inlet bin; 204, first heat exchange bin; 205, buffer bin; 206, second heat exchange bin; 207, flue gas outlet bin; 208, exhaust port; 209, heat exchange pipe; 210, vertical partition plate; 211, waste gas inlet pipe; 212, catalyst inlet pipe; 213, water inlet pipe; 214, water outlet pipe; 215, first back-blowing nozzle pipe; 216, first suction pipe; 217, second back-blowing pipe; 218, second suction pipe. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0034] Please refer to Figs. 1-4 In the embodiments of the utility model, a heat accumulating incineration RTO equipment for waste gas treatment comprises a thermal incinerator 1 composed of a combustion chamber 101, heat accumulating cylinders 102, waste gas conveying pipes 103, catalyst conveying pipes 104, switching electromagnetic valves 105, igniters 106 and exhaust gas pipes 107. The heat accumulating cylinders 102 are provided with three heat accumulating cylinders 102 which are horizontally distributed and fixed inside the combustion chamber 101. The waste gas conveying pipes 103 and the catalyst conveying pipes 104 are distributed at the bottom of the combustion chamber 101, and the waste gas conveying pipes 103 and the catalyst conveying pipes 104 are communicated with the three heat accumulating cylinders 102 through the three switching electromagnetic valves 105 respectively. The igniters 106 are fixedly installed at the middle part of the top of the combustion chamber 101. The exhaust gas pipes 107 are distributed at the top of the combustion chamber 101 and are communicated with the inner cavity of the combustion chamber 101. A heat exchange assembly 2 is arranged at one side outside the combustion chamber 101. The heat exchange assembly 2 is used for heat recovery of the flue gas discharged through the exhaust gas pipes 107.

[0035] The heat exchange assembly 2 comprises a heat recovery unit and a back flushing unit.

[0036] The heat recovery unit recovers the heat of the flue gas, and preheats the waste gas and the combustion-supporting agent by using the heat of the flue gas.

[0037] The back flushing unit is used for back flushing and cleaning operation of the heat recovery unit.

[0038] The heat recovery unit comprises a heat exchange tank 201, a partition plate 202, a flue gas inlet bin 203, a first heat exchange bin 204, a buffer bin 205, a second heat exchange bin 206, a flue gas outlet bin 207, an exhaust gas outlet 208, a heat exchange pipe 209, a vertical partition plate 210, a waste gas inlet pipe 211 and a catalyst inlet pipe 212.

[0039] The partition plate 202 is provided with four partition plates 202 which are vertically distributed and fixed inside the heat exchange tank 201. The partition plate 202 divides the inner cavity of the heat exchange tank 201 into the flue gas inlet bin 203, the first heat exchange bin 204, the buffer bin 205, the second heat exchange bin 206 and the flue gas outlet bin 207 from bottom to top.

[0040] The exhaust gas outlet 208 is fixed at the top of the heat exchange tank 201 and is communicated with the inner cavity of the flue gas outlet bin 207.

[0041] The heat exchange pipes 209 are distributed inside the first heat exchange bin 204 and the second heat exchange bin 206 and are fixedly connected with the upper and lower partition plates 202, and the partition plates 202 are provided with through holes communicated with the heat exchange pipes 209;

[0042] The vertical partition plate 210 is distributed inside the first heat exchange bin 204 and is fixedly connected with the upper and lower partition plates 202 and the inner wall side of the heat exchange tank 201, for separating the first heat exchange bin 204 into left and right preheating chambers, the waste gas inlet pipe 211 and the catalyst inlet pipe 212 penetrate from the outside of the heat exchange tank 201 to the inside of the heat exchange tank 201 and are respectively communicated with the left preheating chamber and the right preheating chamber, the waste gas delivery pipe 103 and the catalyst delivery pipe 104 penetrate the heat exchange tank 201 and are respectively communicated with the left preheating chamber and the right preheating chamber, and the exhaust pipe 107 penetrates the heat exchange tank 201 and is communicated with the flue gas inlet bin 203;

[0043] The flue gas is discharged through the channel composed of the exhaust pipe 107, the flue gas inlet bin 203, the heat exchange pipes 209 and the exhaust port 208, for preheating the waste gas and the combustion-supporting agent in the left and right preheating chambers;

[0044] The ports of the waste gas inlet pipe 211 and the catalyst inlet pipe 212 are located at the bottom inside the first heat exchange bin 204, and the ports of the waste gas delivery pipe 103 and the catalyst delivery pipe 104 are located at the top inside the first heat exchange bin 204.

[0045] In the embodiment, it is necessary to be supplemented that the communication of the waste gas delivery pipe 103 and the catalyst delivery pipe 104 with the three heat storage cylinders 102 can be controlled by switching the electromagnetic valve 105, when the heat incinerator is running, one of the heat storage cylinders 102 is in heat storage state (i.e. not entering the gas), and the other two heat storage cylinders 102 respectively input the waste gas and the catalyst (for example, air), the waste gas and the catalyst enter the combustion chamber for mixing and burning by the heating of the two heat storage cylinders 102, and the heat of the combustion heats the heat storage cylinder 102 in the heat storage state, after a period of time, the communication of the three heat storage cylinders 102 is switched, and the waste gas treatment is realized by repeating the above process.

[0046] In the process, the flue gas generated by the combustion is delivered to the inside of the flue gas inlet bin 203 through the exhaust pipe 107, and the flue gas will pass through the heat exchange pipes 209 inside the first heat exchange bin 204, the buffer bin 205, the heat exchange pipes 209 inside the second heat exchange bin 206, the flue gas outlet bin 207 and the exhaust port 208 in sequence and then be discharged;

[0047] At the same time, the exhaust gas and the catalyst enter into the left and right preheating chambers of the first heat exchange bin 204 through the exhaust gas inlet pipe 211 and the catalyst inlet pipe 212 respectively, and the flue gas flowing through the heat exchange pipes 209 in the first heat exchange bin 204 can exchange heat with the exhaust gas and the catalyst in the left and right preheating chambers, so as to realize the preheating of the exhaust gas and the catalyst, and realize the primary waste heat recovery of the flue gas. The preheated exhaust gas and catalyst are transported into the regenerator 102 through the exhaust gas conveying pipe 103 and the catalyst conveying pipe 104 respectively.

[0048] Please refer to Figs. 1-4 , the heat recovery unit further comprises a water inlet pipe 213 and a water outlet pipe 214.

[0049] The water inlet pipe 213 and the water outlet pipe 214 are distributed on the two sides of the heat exchange tank 201 and penetrate the heat exchange tank 201 and the inner cavity of the second heat exchange bin 206, and the ports of the water inlet pipe 213 and the water outlet pipe 214 are located at the bottom end and the top end of the second heat exchange bin 206 respectively.

[0050] Water is injected into the inside of the second heat exchange bin 206 through the water inlet pipe 213, and the flue gas flowing through the heat exchange pipes 209 distributed in the second heat exchange bin 206 is used to heat the water in the second heat exchange bin 206, so as to realize further heat recovery of the flue gas.

[0051] In this embodiment, the flue gas that has completed the primary waste heat recovery through the first heat exchange bin 204 enters the buffer bin 205, and the temperature of this part of flue gas is lower than that of the flue gas in the flue gas inlet bin 203, but still has a relatively high temperature. Then, the flue gas in the buffer bin 205 enters the heat exchange pipes 209 in the second heat exchange bin 206.

[0052] At the same time, cold water is transported into the inside of the second heat exchange bin 206 through the water inlet pipe 213, and exchanges heat with the flue gas in the heat exchange pipes 209 in the second heat exchange bin 206, so as to heat the cold water. The heated water is discharged through the water outlet pipe 214 and can be used in other industrial equipment, so as to realize the secondary waste heat recovery of the flue gas and realize the efficient use of the waste heat of the flue gas.

[0053] Finally, the temperature of the flue gas entering the flue gas outlet bin 207 is low, and the flue gas is finally discharged through the smoke outlet 208.

[0054] Please refer to Figs. 1-4 , the back flushing unit comprises a first back flushing nozzle 215 and a first suction pipe 216.

[0055] The first back-blowing nozzle 215 is arranged inside the flue gas outlet bin 207, the input end of the first back-blowing nozzle 215 penetrates to the outside of the heat exchange tank 201, a plurality of nozzles matched with the number of the heat exchange pipes 209 in the second heat exchange bin 206 are arranged on the first back-blowing nozzle 215, and the positions of the nozzles correspond to the positions of the heat exchange pipes 209 in the second heat exchange bin 206 one by one, and the high-pressure air sprayed by the nozzles on the first back-blowing nozzle 215 is used for back-blowing and cleaning the heat exchange pipes 209 in the second heat exchange bin 206;

[0056] The first suction pipe 216 penetrates from the outside of the heat exchange tank 201 to the inside of the buffer bin 205, and is used for sucking the impurities back-blowing from the heat exchange pipes 209 in the second heat exchange bin 206;

[0057] The back-blowing unit further comprises a second back-blowing pipe 217 and a second suction pipe 218.

[0058] The second back-blowing pipe 217 is arranged inside the buffer bin 205, and the input end of the second back-blowing pipe 217 penetrates to the outside of the heat exchange tank 201, a plurality of nozzles matched with the number of the heat exchange pipes 209 in the first heat exchange bin 204 are arranged on the second back-blowing pipe 217, and the positions of the nozzles correspond to the positions of the heat exchange pipes 209 in the first heat exchange bin 204 one by one, and the high-pressure air sprayed by the nozzles on the second back-blowing pipe 217 is used for back-blowing and cleaning the heat exchange pipes 209 in the first heat exchange bin 204;

[0059] The second suction pipe 218 penetrates from the outside of the heat exchange tank 201 to the inside of the flue gas inlet bin 203, and is used for sucking the impurities back-blowing from the heat exchange pipes 209 in the first heat exchange bin 204.

[0060] In the embodiment, when the thermal incinerator 1 is temporarily stopped, the air pump connected with the first back-blowing pipe 215 and the second back-blowing pipe 217 is started, the air pump sends the high-pressure air to the first back-blowing pipe 215 and the second back-blowing pipe 217, and the high-pressure air is sprayed by the nozzles, wherein the high-pressure air sprayed by the nozzles of the first back-blowing pipe 215 is used for back-blowing the heat exchange pipes 209 in the second heat exchange bin 206, and the impurities blown down by the nozzles fall into the buffer bin 205, and the high-pressure air sprayed by the nozzles of the second back-blowing pipe 217 is used for back-blowing the heat exchange pipes 209 in the first heat exchange bin 204, and the impurities blown down by the nozzles fall into the flue gas inlet bin 203.

[0061] At the same time, the dust collection device connected with the first suction pipe 216 and the second suction pipe 218 is started synchronously, and the air mixed with the impurities in the buffer bin 205 and the flue gas inlet bin 203 is sucked out, so that the impurities are cleaned, and the heat exchange pipes 209 can maintain good heat exchange effect.

[0062] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A regenerative incineration RTO device for waste gas treatment, comprising a thermal incinerator (1) composed of a combustion chamber (101), regenerative cylinders (102), waste gas delivery pipes (103), catalyst delivery pipes (104), switching electromagnetic valves (105), igniters (106), and exhaust pipes (107), wherein three regenerative cylinders (102) are horizontally distributed and fixed inside the combustion chamber (101), the waste gas delivery pipes (103) and catalyst delivery pipes (104) are distributed at the bottom of the combustion chamber (101), and the waste gas delivery pipes (103) and catalyst delivery pipes (104) respectively communicate with the three regenerative cylinders (102) through the three switching electromagnetic valves (105), the igniters (106) are fixedly installed at the middle of the top of the combustion chamber (101), and the exhaust pipes (107) are distributed at the top of the combustion chamber (101) and communicate with the inner cavity of the combustion chamber (101), characterized in that, The combustion chamber (101) is provided with a heat exchange assembly (2) on the outer side, which is used for heat recovery of flue gas discharged through the exhaust pipe (107); The heat exchange assembly (2) comprises a heat recovery unit and a back blowing unit; The heat recovery unit recovers heat from the flue gas, and preheats the waste gas and combustion-supporting agent by using the heat of the flue gas; The back blowing unit is used for back blowing and cleaning operation of the heat recovery unit; The heat recovery unit comprises a heat exchange tank (201), a partition plate (202), a flue gas inlet bin (203), a first heat exchange bin (204), a buffer bin (205), a second heat exchange bin (206), a flue gas outlet bin (207), an exhaust port (208), a heat exchange pipe (209), a vertical partition plate (210), a waste gas inlet pipe (211), and a catalyst inlet pipe (212); The four partition plates (202) are fixedly arranged on the inner side of the heat exchange tank (201) in the vertical direction, and the partition plates (202) sequentially divide the inner cavity of the heat exchange tank (201) into the flue gas inlet bin (203), the first heat exchange bin (204), the buffer bin (205), the second heat exchange bin (206), and the flue gas outlet bin (207) from bottom to top; The exhaust port (208) is fixed on the top of the heat exchange tank (201) and is in communication with the inner cavity of the flue gas outlet bin (207); The heat exchange pipes (209) are arranged on the inner sides of the first heat exchange bin (204) and the second heat exchange bin (206) and are fixedly connected with the upper and lower partition plates (202), and the partition plates (202) are provided with through holes in communication with the heat exchange pipes (209); The vertical partition plate (210) is arranged on the inner side of the first heat exchange bin (204) and is fixedly connected with the upper and lower partition plates (202) and the inner wall side of the heat exchange tank (201), and is used for dividing the first heat exchange bin (204) into left and right preheating chambers, the waste gas inlet pipe (211) and the catalyst inlet pipe (212) penetrate the heat exchange tank (201) from the outer side to the inner side and are in communication with the left and right preheating chambers respectively, one end of the waste gas delivery pipe (103) and the catalyst delivery pipe (104) away from the combustion chamber (101) penetrates the heat exchange tank (201) and is in communication with the left and right preheating chambers respectively, and one end of the exhaust pipe (107) away from the combustion chamber (101) penetrates the heat exchange tank (201) and is in communication with the flue gas inlet bin (203); The flue gas is discharged through the channel composed of the exhaust pipe (107), the flue gas inlet bin (203), the heat exchange pipe (209), and the exhaust port (208), so as to preheat the waste gas and combustion-supporting agent in the left and right preheating chambers.

2. The regenerative thermal oxidation (RTO) apparatus for exhaust gas treatment according to claim 1, characterized by, The heat recovery unit further comprises a water inlet pipe (213) and a water outlet pipe (214); The water inlet pipe (213) and the water outlet pipe (214) are arranged on the two outer sides of the heat exchange tank (201) and penetrate the heat exchange tank (201) and are in communication with the inner cavity of the second heat exchange bin (206), and the ports of the water inlet pipe (213) and the water outlet pipe (214) are located at the bottom end and the top end of the second heat exchange bin (206) respectively. The water in the second heat exchange bin (206) is heated by the flue gas flowing through the heat exchange pipes (209) in the second heat exchange bin (206) to achieve further heat recovery of the flue gas.

3. The regenerative thermal oxidation (RTO) apparatus for waste gas treatment according to claim 1, characterized in that, The back blowing unit comprises a first back blowing nozzle (215) and a first suction pipe (216). The first back blowing nozzle (215) is arranged in the flue gas outlet bin (207), and the input end of the first back blowing nozzle (215) penetrates to one side outside the heat exchange tank (201). A plurality of nozzles are arranged on the first back blowing nozzle (215) and correspond to the positions of the heat exchange pipes (209) in the second heat exchange bin (206). The high-pressure air sprayed from the nozzles of the first back blowing nozzle (215) is used for back blowing and cleaning the heat exchange pipes (209) in the second heat exchange bin (206). The first suction pipe (216) penetrates from one side outside the heat exchange tank (201) to the inside of the buffer bin (205), and is used for sucking the impurities back blown from the heat exchange pipes (209) in the second heat exchange bin (206).

4. The regenerative thermal oxidation (RTO) apparatus for waste gas treatment according to claim 3, characterized in that, The back blowing unit further comprises a second back blowing pipe (217) and a second suction pipe (218). The second back blowing pipe (217) is arranged in the buffer bin (205), and the input end of the second back blowing pipe (217) penetrates to one side outside the heat exchange tank (201). A plurality of nozzles are arranged on the second back blowing pipe (217) and correspond to the positions of the heat exchange pipes (209) in the first heat exchange bin (204). The high-pressure air sprayed from the nozzles of the second back blowing pipe (217) is used for back blowing and cleaning the heat exchange pipes (209) in the first heat exchange bin (204). The second suction pipe (218) penetrates from one side outside the heat exchange tank (201) to the inside of the flue gas inlet bin (203), and is used for sucking the impurities back blown from the heat exchange pipes (209) in the first heat exchange bin (204).

5. The regenerative thermal oxidation (RTO) apparatus for waste gas treatment according to claim 1, characterized in that, The ports of the waste gas inlet pipe (211) and the catalyst inlet pipe (212) are located at the bottom of the inside of the first heat exchange bin (204), and the ports of the waste gas conveying pipe (103) and the catalyst conveying pipe (104) are located at the top of the inside of the first heat exchange bin (204).

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