Waste gas treatment system and process for RTO (Regenerative Thermal Oxidation) incinerator

Abstract

The waste gas treatment system comprises a multi-channel combustion furnace, and the multi-channel combustion furnace comprises a furnace body support, a lower shell, an upper shell, a first cavity, a second cavity, a third cavity, a heat preservation layer, a supporting frame, a heat accumulator, a funnel groove, a conversion cavity, an air inlet, an air outlet, a combustion chamber and a combustor. The lower shell is fixedly arranged on the furnace body support, the upper shell is fixedly arranged on the lower shell, the lower shell is divided into a first cavity, a second cavity and a third cavity through an internal metal plate partition plate, and heat preservation layers are fixedly arranged in the upper shell, the first cavity, the second cavity and the third cavity. The waste gas treatment residue can be effectively reduced, the problem that the heat storage body supporting frame is pressed and deformed is solved, and the problems that due to the fact that the arrangement precision and the arrangement efficiency of the heat storage mechanisms are not high, vent holes of the upper and lower layers of the heat storage mechanisms are blocked due to improper arrangement, and gas circulation is not smooth are solved.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, in particular to a waste gas treatment system and process for an RTO regenerative thermal incinerator. Background Art

[0002] China's waste gas treatment demand is mainly concentrated in the power and steel industries, among which the power industry accounts for more than 80%. China's power industry is highly concentrated, mainly in China Huaneng Group Corporation, China Datang Group Corporation, China Guodian Corporation, China Huadian Corporation, China Power Investment Corporation and other enterprises, and these group companies all have their own waste gas treatment subsidiaries. Therefore, the waste gas treatment subsidiaries of large power group companies occupy a large market share in China's waste gas treatment industry, while other private enterprises are gradually winning more and more market share by introducing advanced waste gas treatment technologies and adopting flexible business strategies.

[0003] Waste gas treatment is also called waste gas purification. Waste gas treatment refers to the work of pre-treating the waste gas generated in industrial sites and factory workshops before external discharge to meet the national waste gas discharge standards. General waste gas treatment includes organic waste gas treatment, dust waste gas treatment, acid and alkali waste gas treatment, odor waste gas treatment and air sterilization and disinfection purification.

[0004] Waste gas emitted by industrial production often has a harmful effect on the environment and human health. Purification measures should be taken before it is discharged into the atmosphere to make it meet the requirements of waste gas emission standards. This process is called waste gas purification. Commonly used waste gas purification methods include: absorption method, adsorption method, condensation method and combustion method.

[0005] If the organic matter contains other elements such as halogens, the oxidation products include hydrogen halides, etc. The exhaust gas is first heated to a temperature close to the thermal oxidation temperature by the heat storage body, and then enters the combustion chamber for thermal oxidation. The temperature of the oxidized gas increases, and the organic matter is basically converted into carbon dioxide and water. The purified gas passes through another heat storage body, and the temperature drops. It can be discharged after meeting the emission standards. Different heat storage bodies are converted over time through switching valves or rotating devices to absorb and release heat respectively.

[0006] The principle is to heat the organic waste gas to above 760 degrees Celsius, so that the VOC in the waste gas is oxidized and decomposed into carbon dioxide and water. The high-temperature gas generated by oxidation flows through a special ceramic heat storage body, causing the ceramic body to heat up and "storage heat". This "heat storage" is used to preheat the organic waste gas that enters later. Thereby saving the fuel consumption for heating the waste gas. The ceramic heat storage body should be divided into two (including two) or more areas or chambers, and each heat storage chamber will go through the procedures of heat storage-heat release-cleaning in turn, over and over again, and work continuously. After the heat storage chamber "releases heat", part of the clean exhaust gas that has been treated and qualified should be immediately introduced to clean the heat storage chamber (to ensure that the VOC removal rate is above 95%). Only after the cleaning is completed can the "heat storage" procedure be entered.

[0007] For example, the application number 201611251752.0 provides a regenerative incinerator, including a burner, an upper chamber body, a lower chamber body, a regenerative chamber, an exhaust gas pipe and a chimney, wherein the burner is connected to a gas pipe and an air pipe, the exhaust gas pipe is connected to an air intake pipe of a fan, the lower chamber body is connected to an exhaust pipe of the fan, the lower chamber body is connected to the upper chamber body through a connecting pipeline, the lower chamber body is provided with an air intake lift valve leading to the connecting pipeline, the upper chamber body is connected to the regenerative chamber, a regenerative body is provided in the regenerative chamber, the chimney is connected to the upper chamber body through a bypass pipeline, the chimney is connected to the lower chamber body through an exhaust lift valve, and the lower chamber body is connected to the exhaust gas pipe through a back-blowing pipeline. The regenerative incinerator described in the present invention has high thermal efficiency, can process large air volume and low-concentration exhaust gas, has a secondary waste heat recovery and purification function, and recycles the gas in the incinerator into the incinerator for secondary purification, thereby improving the exhaust gas purification efficiency.

[0008] However, most of the current waste gas treatment systems cannot prevent the gas in the furnace from being discharged back into the air intake pipe. There are waste gas treatment residues, the heat storage body support frame often has problems of compression deformation, the arrangement accuracy and arrangement efficiency of the heat storage mechanism are not high, and the air vents of the upper and lower heat storage mechanisms are often blocked due to improper arrangement, resulting in poor gas circulation. Particles attached to the air vents of the heat storage body cause the heat storage body to be blocked, affecting the ventilation volume and heat storage efficiency of the heat storage body. Pipeline blockages often occur due to improper inspections. Summary of the invention

[0009] The technical problem to be solved by the present invention is to prevent the gas in the furnace from being discharged back into the air intake pipe, reduce the waste gas treatment residue, solve the problem of compression deformation of the heat storage body support frame, solve the problem that the arrangement accuracy and arrangement efficiency of the heat storage mechanism are not high, and the air vents of the upper and lower heat storage mechanisms are blocked due to improper arrangement, resulting in poor gas circulation. Solve the problem that the particulate matter attached to the air vents of the heat storage body in the heat storage body causes the heat storage body to be blocked, improve the ventilation volume and heat storage efficiency of the heat storage body, and solve the problem of pipeline blockage due to improper inspection.

[0010] In order to solve the above technical problems, the present invention provides an exhaust gas treatment system for an RTO regenerative incinerator, comprising a multi-channel combustion furnace, wherein the multi-channel combustion furnace comprises a furnace body support, a lower shell, an upper shell, a first cavity, a second cavity, a third cavity, a thermal insulation layer, a support frame, a thermal storage body, a funnel trough, a conversion cavity, an air inlet, an air outlet, a combustion chamber, and a burner; the lower shell is fixedly arranged on the furnace body support, the upper shell is fixedly arranged on the lower shell, the lower shell is separated by an internal sheet metal partition and is divided into a first cavity, a second cavity, and a third cavity, and the upper shell , the first cavity, the second cavity, and the third cavity are all fixedly provided with a heat preservation layer, the bottoms of the first cavity, the second cavity, and the third cavity are respectively fixedly provided with support frames, each group of the support frames is fixedly provided with a heat storage body, and a funnel groove is fixedly provided at the bottom, the conversion cavity is provided with multiple groups, which are fixedly provided at the bottom of each group of the funnel grooves, and an air inlet is provided at the bottom of each group of the conversion cavity, and an air outlet is opened on the side, the cavity surrounded by the heat preservation layer inside the upper shell is a combustion chamber, and the burner is fixedly provided on the upper shell, passes through the heat preservation layer, and enters the combustion chamber; An air intake mechanism for conveying exhaust gas is fixedly arranged at the bottom of the multi-channel combustion furnace; The bottom of the multi-channel combustion furnace is provided with a gas outlet mechanism for conveying purified gas; The bottom of the multi-channel combustion furnace is provided with a back-blowing mechanism for cleaning the ventilation cavity.

[0011] Preferably, the air intake mechanism comprises a booster fan, a main air inlet for the fan, a main air outlet for the fan, an air intake main line, a first air inlet pipe, a second air inlet pipe, and a third air inlet pipe; the booster fan is fixedly arranged on one side of the multi-channel combustion furnace, a main air inlet for the fan is provided on an outer circumferential extension end face of the booster fan, and a main air outlet for the fan is provided on a side face; one end of the air intake main line is closed, and the other end is fixedly connected to the main air outlet for the fan; the first air inlet pipe, the second air inlet pipe, and the third air inlet pipe are respectively fixedly arranged on the air intake main line, and are respectively fixedly connected to multiple groups of air inlets provided at the bottom of the conversion chamber; Preferably, the air outlet mechanism comprises a main air outlet pipe, a main air outlet, a first air outlet pipe, a second air outlet pipe, and a third air outlet pipe; one end of the main air outlet pipe is closed, and the other end is externally connected to a clean air output device; the first air outlet pipe, the second air outlet pipe, and the third air outlet pipe are respectively fixedly arranged on the main air outlet pipe, and are respectively fixedly connected to multiple groups of air outlets opened on the side of the conversion cavity; Preferably, the multi-channel combustion furnace also includes a reducing tee, a first air inlet is provided at the bottom of the reducing tee, a second air inlet is provided at the side, and a third air inlet is provided at the top. The reducing tee is fixedly arranged between multiple groups of air inlets at the bottom of the conversion chamber and the corresponding first inlet pipe, second inlet pipe, and third inlet pipe, and a booster back-blowing air port is provided on the top of the booster fan, and the back-blowing mechanism includes a back-blowing main air pipe, a first back-blowing air pipe, a second back-blowing air pipe, a third back-blowing air pipe, and a control valve; one end of the back-blowing main air pipe is closed, and the other end is fixedly connected to the booster back-blowing air port, the first back-blowing air pipe, the second back-blowing air pipe, and the third back-blowing air pipe are respectively fixedly arranged on the back-blowing main air pipe, and the other end is fixedly connected to the second air inlet on the multiple groups of reducing tees, and the first back-blowing air pipe, the second back-blowing air pipe, and the third back-blowing air pipe are respectively fixedly arranged with control valves; Preferably, the exhaust gas treatment system for the RTO regenerative incinerator also includes an air-controlled single-way mechanism, which includes a valve body, a valve body air inlet, a valve body air outlet, an intermediate support sealing platform, a hinged shaft, a spring support shaft, a left hinged door, a right hinged door, a strong spring, a limit end, a torsion end, an air-controlled groove, an air-controlled valve, and an air-controlled pipe; a valve body air inlet is provided on the lower side of the valve body, a valve body air outlet is provided on the upper side, an intermediate support sealing platform is fixedly provided at the middle position inside the valve body, the hinged shaft is fixedly provided at the middle position along the radial line of the valve body, and is provided on the upper side of the intermediate support sealing platform, the spring support shaft is fixedly provided on the valve body, and the upper side of the hinged shaft is parallel to the axis, and the left hinged door and the right hinged door are symmetrically movable. The movable hinge is arranged on the hinge shaft, symmetrically arranged through the hinge shaft, and when in a horizontal state, it is in parallel contact with the intermediate support sealing platform. The strong spring is provided with multiple groups, fixedly sleeved on the hinge shaft, and its two sides are respectively a limit end and a torsion end. The limit end is movably sleeved on the spring support shaft, and the limit end is flat on the left hinged door and the right hinged door. The intermediate support sealing platform is provided with two groups of symmetrical air control grooves near the inner wall of the valve body. The air control valve is fixedly arranged on the outer wall of the valve body, and is connected and penetrated with the left and right groups of air control grooves through the two groups of air control pipes; the air control single-way mechanism is fixedly arranged between each group of the reducing tee and the first intake pipe, the second intake pipe, and the third intake pipe; Preferably, the support frame is composed of a double-layer support mechanism, which includes a square main support frame, a M-shaped oblique support, and a mesh support screen; the M-shaped oblique support is provided in multiple groups and is fixedly arranged between multiple groups of the square main support frames, and the mesh support screen is fixedly arranged on the M-shaped oblique support; Preferably, the heat storage body is composed of a plurality of groups of self-positioning and anti-blocking heat storage mechanisms, and the self-positioning and anti-blocking heat storage mechanisms include hexagonal vents, top square grooves, bottom square grooves, positioning holes, and positioning columns; Preferably, the exhaust gas treatment system for the RTO thermal storage incinerator further comprises oscillating ceramic balls; the oscillating ceramic balls are provided in multiple groups, and are respectively movably arranged in the space enclosed by the top square groove and the bottom square groove on the two groups of the self-positioning anti-blocking thermal storage mechanisms, and can move freely; Preferably, the exhaust gas treatment system for the RTO regenerative incinerator further includes a window monitor, and the multi-channel combustion furnace further includes a ash cleaning door and a perspective window; the ash cleaning door is movably hinged on the conversion chamber, the perspective window is fixedly arranged on the ash cleaning door, and the window monitor is fixedly arranged on the ash cleaning door. When in use, the window monitor monitors the internal situation of the conversion chamber in real time, and when the amount of stored ash is greater than a set amount, the ash cleaning door is opened for cleaning; A process for using an exhaust gas treatment system for an RTO regenerative thermal incinerator comprises the following steps: S1, exhaust gas enters through the main air inlet of the fan on the booster fan, and enters the main air inlet line through the main air outlet of the fan. After the first exhaust gas enters the first cavity through the first air inlet pipe, it is burned in the combustion chamber, and the burned gas enters the second cavity to preheat the heat storage body in the second cavity, and then flows into the main air outlet pipe through the second air outlet, and finally flows into the next stage equipment through the main air outlet; at this time, part of the exhaust gas enters the back-blowing main air pipe through the booster back-blowing air port, and enters the third cavity through the third back-blowing air pipe, and the exhaust gas staying in the third cavity is back-blown into the combustion chamber for full combustion; S2, for the second time, the exhaust gas enters the second intake pipe through the intake main line, and then flows through the heat storage body in the second cavity for heat exchange, performs gas preheating, and burns in the combustion chamber. The burned gas enters the third cavity to preheat the heat storage body in the third cavity, and then flows into the main gas outlet pipe through the third gas outlet pipe. At this time, part of the exhaust gas enters the first cavity from the back-blowing main gas pipe through the first back-blowing gas pipe, and the exhaust gas staying in the first cavity is back-blown into the combustion chamber for full combustion; S3, for the third time, the exhaust gas enters the third intake pipe through the intake main line, and then flows through the heat storage body in the third cavity for heat exchange, performs gas preheating, and burns in the combustion chamber. The burned gas enters the first cavity to preheat the heat storage body in the first cavity, and then flows into the main gas outlet pipe through the first gas outlet pipe. At this time, part of the exhaust gas enters the second cavity from the back-blowing main gas pipe through the second back-blowing gas pipe, and the exhaust gas staying in the second cavity is back-blown into the combustion chamber for full combustion; the cycle is repeated in sequence; S4. When the first air intake pipe needs to take in air, the first group of air control valves works, and the gas enters the air control groove through the air control pipe, destroying the seal between the left hinged door, the right hinged door and the intermediate support sealing platform, so that the gas passes smoothly. At this time, the left hinged door and the right hinged door on the air control single-way mechanism on the second air intake pipe and the third air intake pipe are elastically acted on by the strong spring on the hinge shaft and the seal between the intermediate support sealing platform prevents gas backflow; when the second air intake pipe and the third air intake pipe need to take in air, the steps are the same.

[0012] S5. During assembly, the positioning posts on each group of the self-positioning anti-blocking heat storage mechanisms are inserted into the positioning holes on another group of the self-positioning anti-blocking heat storage mechanisms, and the groups are stacked in sequence; the gas flows through the hexagonal vents on the stacked groups of the self-positioning anti-blocking heat storage mechanisms to exchange heat; S6. When the gas enters the self-positioning anti-blocking heat storage mechanism from bottom to top, the oscillating ceramic ball vibrates up and down in the top square groove and the bottom square groove under the action of the pressurized gas; Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up a multi-channel combustion furnace, combined with the alternating control of the air intake mechanism, the air outlet mechanism, and the back-blowing mechanism, compared with the traditional catalytic combustion and direct-fired thermal oxidation technology, it has a significant effect on treating large air volume, medium and low concentration industrial organic waste gas. The heat storage carrier is used for heat exchange, with fast heating speed, high low-temperature heat exchange efficiency, low exhaust temperature, and significant energy-saving effect; the high heat recovery rate significantly reduces the amount of supplementary fuel, greatly reducing production and operation costs. The overall temperature in the furnace gradually increases and is evenly distributed, the combustion temperature is high, the speed is fast, the noise is low, and the flue gas stays at high temperature in the furnace for a long time, which improves the waste gas treatment efficiency and waste gas treatment rate.

[0013] 2. By setting up a gas-controlled single-pass mechanism, which has a simple structure, low cost, and high safety, it does not require electrical control, and a simple spring mechanism can realize gas flow control of the exhaust gas treatment system, effectively preventing the gas in the furnace from being discharged back into the air intake pipeline.

[0014] 3. By setting up the intermediate support sealing platform and the air control groove, the reverse sealing of the pipeline is ensured while the working effectiveness of the valve body of the forward air intake is effectively guaranteed. When the gas enters, it preferentially enters the air control groove through the pipeline to destroy the sealing and ensure the normal opening of the one-way mechanism. The simple mechanism improves the effectiveness of the equipment function.

[0015] 4. By setting up a double-layer support mechanism, compared with the conventional support mechanism, a square frame plus a cross-shaped support structure is adopted. Under the same strength, the use of support beams is reduced, and the arrangement of the heat storage mechanism is staggered to improve the support strength.

[0016] 5. By setting up a self-positioning and anti-blocking heat storage mechanism, the gas passage rate is effectively improved, and the heat exchange capacity of the heat storage body is improved. In particular, by setting positioning holes and positioning columns, the arrangement accuracy and efficiency of the heat storage mechanism are improved, and the problem of blocked gas circulation caused by improper arrangement of the vents of the upper and lower heat storage mechanisms is effectively avoided.

[0017] 7. By setting the top square groove, the bottom square groove and the oscillating ceramic ball, when the bottom gas enters the heat storage mechanism, the ceramic ball that falls into the vent is continuously lifted up. The gas is continuously lifted up and falls, which agitates the particles attached to the vent holes of the heat storage body, effectively preventing the problem of the heat storage body being blocked and improving the ventilation volume and heat storage efficiency of the heat storage body.

[0018] 8. By setting up a dust cleaning door, a perspective window, and a window monitor, the monitor will provide real-time feedback on the dust falling situation in the conversion chamber. When the dust falling reaches the set requirements, the equipment will be shut down for cleaning, which reduces the number of manual on-site inspections and the impact on human health on the site, improves the degree of automation and intelligence of the equipment, and effectively prevents the occurrence of pipeline blockage through real-time monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings: Figure 1 It is the front view of the present invention; Figure 2 It is a left side view of the present invention; Figure 3 A top view of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 5 for Figure 3 Schematic diagram of the structure of the cross section in the AA direction; Figure 6 for Figure 2 A partial enlarged schematic diagram of the middle B area; Figure 7 It is a left view of the gas-controlled single-way mechanism of the present invention; Figure 8 for Figure 7 Structural schematic diagram of the cross section in the CC direction; Fig. 9 It is a schematic diagram of the three-dimensional structure of the gas-controlled single-way mechanism of the present invention; Fig.10 for Figure 5 A partial enlarged schematic diagram of the middle D area; Fig.11 It is a top view of the double-layer support mechanism of the present invention; Fig.12 This is a front view of the self-positioning anti-blocking heat storage mechanism of the present invention; Fig.13 for Fig.12 Schematic diagram of the structure of the cross section in the EE direction; Fig.14 It is a schematic diagram of the three-dimensional structure of the self-positioning anti-blocking heat storage mechanism of the present invention; Fig.15 for Figure 1 A partial enlarged schematic diagram of the middle F area; In the figure: 1. Multi-channel combustion furnace; 101. Furnace support; 102. Lower shell; 103. Upper shell; 104. First cavity; 105. Second cavity; 106. Third cavity; 107. Insulation layer; 108. Support frame; 109. Heat storage body; 110. Funnel slot; 111. Conversion cavity; 112. Air inlet; 113. Air outlet; 114. Cleaning door; 115. Perspective window; 116. Combustion chamber; 117. Burner; 118. Variable diameter three 119, first air inlet; 120, second air inlet; 121, third air inlet; 2, air inlet mechanism; 201, booster fan; 202, fan main air inlet; 203, fan main air outlet; 204, air inlet main line; 205, first air inlet pipe; 206, second air inlet pipe; 207, third air inlet pipe; 3, air outlet mechanism; 301, main air outlet pipe; 302, main air outlet; 303, first air outlet pipe; 304, second air outlet pipe; 305, third Three air outlet pipes; 4, back-blowing mechanism; 401, boost back-blowing air port; 402, back-blowing main air pipe; 403, first back-blowing air pipe; 404, second back-blowing air pipe; 405, third back-blowing air pipe; 406, control valve; 5, air-controlled single-pass mechanism; 501, valve body; 502, valve body air inlet; 503, valve body air outlet; 504, intermediate support sealing platform; 505, hinged shaft; 506, spring support shaft; 507, left hinged door; 508, right hinged door; 50 9. Strong spring; 510. Limit end; 511. Torque end; 512. Air control groove; 513. Air control valve; 514. Air control tube; 6. Double-layer support mechanism; 601. Square main support frame; 602. M-shaped oblique support; 603. Mesh support screen; 7. Self-positioning anti-blocking heat storage mechanism; 701. Hexagonal vent; 702. Top square groove; 703. Bottom square groove; 704. Positioning hole; 705. Positioning column; 8. Oscillating ceramic ball; 9. Window monitor; DETAILED DESCRIPTION Example 1

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 15 , an exhaust gas treatment system for an RTO regenerative incinerator, comprising a multi-channel combustion furnace 1, the multi-channel combustion furnace 1 comprising a furnace body support 101, a lower shell 102, an upper shell 103, a first cavity 104, a second cavity 105, a third cavity 106, a thermal insulation layer 107, a support frame 108, a thermal storage body 109, a funnel trough 110, a conversion cavity 111, an air inlet 112, an air outlet 113, a combustion chamber 116, and a burner 117; the lower shell 102 is fixedly arranged on the furnace body support 101, the upper shell 103 is fixedly arranged on the lower shell 102, the lower shell 102 is separated by an internal sheet metal partition and is divided into a first cavity 104, a second cavity 105, and a third cavity 106, the upper shell 103, the first cavity 104, the second cavity 105, and the third cavity 106 are all fixedly provided with a heat-insulating layer 107, and the bottoms of the first cavity 104, the second cavity 105, and the third cavity 106 are respectively fixedly provided with support frames 108, and each group of the support frames 108 is fixedly provided with a heat storage body 109, and a funnel groove 110 is fixedly provided at the bottom. The conversion cavity 111 is provided with multiple groups, which are fixedly provided at the bottom of each group of the funnel groove 110, and each group of the conversion cavity 111 is provided with an air inlet 112 at the bottom, and an air outlet 113 is opened on the side. The cavity surrounded by the heat-insulating layer 107 inside the upper shell 103 is a combustion chamber 116, and the burner 117 is fixedly provided on the upper shell 103, passes through the heat-insulating layer 107, and enters the combustion chamber 116; An air intake mechanism 2 for conveying exhaust gas is fixedly arranged at the bottom of the multi-channel combustion furnace 1; The bottom of the multi-channel combustion furnace 1 is provided with a gas outlet mechanism 3 for conveying purified gas; The bottom of the multi-channel combustion furnace 1 is provided with a back-blowing mechanism 4 for cleaning the ventilation cavity.

[0022] In some embodiments, see Figure 1 The air intake mechanism 2 comprises a booster fan 201, a main air inlet 202 for the fan, a main air outlet 203 for the fan, an air intake main line 204, a first air inlet pipe 205, a second air inlet pipe 206, and a third air inlet pipe 207; the booster fan 201 is fixedly arranged on one side of the multi-channel combustion furnace 1, a main air inlet 202 for the fan is provided on the outer circumferential extension end face of the booster fan 201, and a main air outlet 203 for the fan is provided on the side face; one end of the main air intake line 204 is closed, and the other end is fixedly connected to the main air outlet 203 for the fan; the first air inlet pipe 205, the second air inlet pipe 206, and the third air inlet pipe 207 are respectively fixedly arranged on the main air intake line 204, and are respectively fixedly connected to the air inlets 112 provided at the bottom of the multiple groups of the conversion chambers 111; In some embodiments, see Figure 3The air outlet mechanism 3 includes a main air outlet pipe 301, a main air outlet 302, a first air outlet pipe 303, a second air outlet pipe 304, and a third air outlet pipe 305; one end of the main air outlet pipe 301 is closed, and the other end is externally connected to a clean air output device; the first air outlet pipe 303, the second air outlet pipe 304, and the third air outlet pipe 305 are respectively fixedly arranged on the main air outlet pipe 301, and are respectively fixedly connected to multiple groups of air outlets 113 opened on the side of the conversion chamber 111; In some embodiments, see Figure 5 , Figure 6The multi-channel combustion furnace 1 also includes a reducing tee 118, the reducing tee 118 has a first air inlet 119 at the bottom, a second air inlet 120 at the side, and a third air inlet 121 at the top. The reducing tee 118 is fixedly arranged between the multiple groups of air inlets 112 at the bottom of the conversion chamber 111 and the corresponding first air inlet pipes 205, second air inlet pipes 206, and third air inlet pipes 207. The top of the booster fan 201 has a boost back-blowing air port 401. The back-blowing mechanism 4 includes a back-blowing main air pipe 402, a first back-blowing air pipe 403, a second back-blowing air pipe 404, a third back-blowing air pipe 405, and a control valve 406. One end of the back-blowing main air pipe 402 is closed, and the other end is fixedly connected to the boost back-blowing air port 401. The first back-blowing air pipe 403, the second back-blowing air pipe 404, and the third back-blowing air pipe 405 are respectively fixedly arranged on the back-blowing main air pipe 402, and the other end is fixedly connected to the second air inlet 120 on the multiple groups of the reducing tees 118. The first back-blowing air pipe 403, the second back-blowing air pipe 404, and the third back-blowing air pipe 405 are respectively fixedly provided with a control valve 406. When in use, the exhaust gas enters through the fan main air inlet 202 on the boosting fan 201, and enters the main air inlet line 204 through the fan main air outlet 203. , after the first exhaust gas enters the first cavity 104 through the first air inlet pipe 205, it is burned in the combustion chamber 116, and the burned gas enters the second cavity 105, preheats the heat storage body 109 in the second cavity 105, and then flows into the main air outlet pipe 301 through the second air outlet pipe 304, and finally flows into the next stage equipment through the main air outlet 302; at this time, part of the exhaust gas enters the back-blowing main air pipe 402 through the boost back-blowing air port 401, and enters the third cavity 106 through the third back-blowing air pipe 405, and the exhaust gas staying in the third cavity is back-blown into the combustion chamber 116 for full combustion; the second Second, the exhaust gas enters the second intake pipe 206 through the intake main line 204, and then flows through the heat storage body 109 in the second cavity 105 for heat exchange, and preheats the gas. The gas is burned in the combustion chamber 116, and the burned gas enters the third cavity 106 to preheat the heat storage body 109 in the third cavity 106, and then flows into the main gas outlet pipe 301 through the third gas outlet pipe 305. At this time, part of the exhaust gas enters the first cavity 104 from the back-blowing main gas pipe 402 through the first back-blowing gas pipe 403, and the exhaust gas staying in the first cavity 104 is back-blown into the combustion chamber 116 for full combustion;For the third time, the exhaust gas enters the third intake pipe 207 through the intake main line 204, and then flows through the heat storage body 109 in the third cavity 106 for heat exchange, performs gas preheating, and burns in the combustion chamber 116. The burned gas enters the first cavity 104, preheats the heat storage body 109 in the first cavity 104, and then flows into the main exhaust pipe 301 through the first exhaust pipe 303. At this time, part of the exhaust gas enters the second cavity 105 from the back-blowing main air pipe 402 through the second back-blowing air pipe 404, and the exhaust gas staying in the second cavity 105 is back-blown into the combustion chamber 116 for full combustion; the cycle is repeated in sequence; by setting a multi-channel combustion furnace, coordinating the alternating control of the intake mechanism, the exhaust mechanism, and the back-blowing mechanism, compared with the traditional catalytic combustion and direct-fired thermal oxidation technology, the effect of treating large air volume and medium and low concentration industrial organic waste gas is significant, and heat storage carriers are used for heat exchange. Fast heating speed, high low-temperature heat exchange efficiency, low exhaust temperature, and significant energy-saving effect; The high heat recovery rate significantly reduces the amount of supplementary fuel, greatly reducing production and operation costs. The overall temperature in the furnace gradually increases and is evenly distributed, the combustion temperature is high, the speed is fast, the noise is low, and the flue gas stays at high temperature in the furnace for a long time, which improves the waste gas treatment efficiency and waste gas treatment rate. ;

[0023] In some embodiments, see Figure 7-9The waste gas treatment system for the RTO regenerative incinerator also includes a gas-controlled single-way mechanism 5, which includes a valve body 501, a valve body air inlet 502, a valve body air outlet 503, an intermediate support sealing platform 504, a hinged shaft 505, a spring support shaft 506, a left hinged door 507, a right hinged door 508, a strong spring 509, a limit end 510, a torsion end 511, an air-controlled groove 512, an air-controlled valve 513, and an air-controlled pipe 514; the valve body 501 is provided with a valve body air inlet 502 on the lower side and a valve body air outlet 503 on the upper side; an intermediate support sealing platform 504 is fixedly arranged at the middle position inside the valve body 501, and the The hinge shaft 505 is fixedly arranged along the middle position of the radial line of the valve body 501 and is arranged on the upper side of the intermediate support sealing platform 504. The spring support shaft 506 is fixedly arranged on the valve body 501. The upper side of the hinge shaft 505 is parallel to the axis. The left hinged door 507 and the right hinged door 508 are symmetrically hinged on the hinge shaft 505, symmetrically arranged through the hinge shaft 505, and when in a horizontal state, they are in parallel contact with the intermediate support sealing platform 504. The strong spring 509 is provided with multiple groups and fixedly sleeved on the hinge shaft 505, and its two sides are respectively a limit end 510 and a torsion end 511. The limit end 510 is movably sleeved on the spring support shaft 506, the limit end 510 is laid flat on the left hinged door 507 and the right hinged door 508, the intermediate support sealing platform 504 is provided with two groups of symmetrical air control grooves 512 near the inner wall of the valve body 501, the air control valve 513 is fixedly arranged on the outer wall of the valve body 501, and is connected and penetrated with the left and right groups of air control grooves 512 through two groups of air control pipes 514; the air control single-way mechanism 5 is fixedly arranged between each group of the reducing tee 118 and the first air inlet pipe 205, the second air inlet pipe 206, and the third air inlet pipe 207; when in use, when the first air inlet pipe 205 needs When the air is inlet, the first group of the air control valves 513 work, and the gas enters the air control groove 512 through the air control pipe 514, destroying the seal between the left hinged door 507, the right hinged door 508 and the intermediate support sealing platform 504, so that the gas passes smoothly. At this time, the left hinged door 507 and the right hinged door 508 on the air control single-way mechanism 5 on the second air intake pipe 206 and the third air intake pipe 207 are elastically sealed with the intermediate support sealing platform 504 by the strong spring 509 on the hinge shaft 505 to prevent gas backflow; when the second air intake pipe 206 and the third air intake pipe 207 are required to inlet air, the steps are the same. By setting up the air control single-way mechanism, the structure is simple, the cost is low, the safety is high, and no electric control is required. The simple spring mechanism can realize the gas flow control of the exhaust gas treatment system, effectively preventing the gas in the furnace from being discharged back into the air intake pipeline.By setting up an intermediate supporting sealing platform and an air control groove, the reverse sealing of the pipeline is ensured while the working effectiveness of the valve body for positive air intake is effectively guaranteed. When gas enters, it preferentially enters the air control groove through the pipeline to destroy the sealing and ensure the normal opening of the one-way mechanism. The simple structure improves the effectiveness of the equipment function.

[0024] In some embodiments, see Fig.10 , Fig.11 The support frame 108 is composed of a double-layer support mechanism 6, which includes a square main support frame 601, a cross-shaped oblique support 602, and a mesh support screen 603; the cross-shaped oblique support 602 is provided with multiple groups, which are fixedly set between the multiple groups of square main support frames 601, and the mesh support screen 603 is fixedly set on the cross-shaped oblique support 602; by setting up a double-layer support mechanism, compared with the conventional support mechanism, a square frame plus cross-shaped support structure is adopted, which reduces the use of support beams under the same strength, and is staggered with the arrangement of the heat storage mechanism to improve the support strength.

[0025] In some embodiments, see Figure 12-14 The heat storage body 109 is composed of multiple groups of self-positioning and anti-blocking heat storage mechanisms 7, and the self-positioning and anti-blocking heat storage mechanisms 7 include hexagonal air vents 701, top square grooves 702, bottom square grooves 703, positioning holes 704, and positioning columns 705; during assembly, the positioning columns 705 on each group of the self-positioning and anti-blocking heat storage mechanisms 7 are inserted into the positioning holes 704 on another group of the self-positioning and anti-blocking heat storage mechanisms 7, and are stacked in sequence; gas circulates through the hexagonal air vents 701 on the stacked multiple groups of the self-positioning and anti-blocking heat storage mechanisms 7 for heat exchange; by setting the self-positioning and anti-blocking heat storage mechanism, the gas passage rate is effectively improved, and the heat exchange capacity of the heat storage body is improved. In particular, by setting the positioning holes and positioning columns, the arrangement accuracy and arrangement efficiency of the heat storage mechanism are improved, and the problem of poor gas circulation caused by the air vents of the upper and lower heat storage mechanisms being blocked due to improper arrangement is effectively avoided.

[0026] In some embodiments, see Fig.14The waste gas treatment system for the RTO thermal storage incinerator also includes oscillating ceramic balls 8; the oscillating ceramic balls 8 are provided in multiple groups, which are movably arranged in the space surrounded by the top square groove 702 and the bottom square groove 703 on the two groups of the self-positioning anti-blocking thermal storage mechanisms 7, and can move freely; when in use, when the gas enters the self-positioning anti-blocking thermal storage mechanism 7 from bottom to top, under the action of the pressurized gas, the oscillating ceramic balls 8 vibrate up and down in the top square groove 702 and the bottom square groove 703; by providing the top square groove, the bottom square groove, and the oscillating ceramic balls, when the bottom gas enters the thermal storage mechanism, the ceramic balls that fall into the vent are continuously lifted up, and the gas is continuously lifted up and falls, which agitates the particulate matter attached to the vent hole of the thermal storage body, effectively preventing the problem of the thermal storage body being blocked, and improving the ventilation volume and thermal storage efficiency of the thermal storage body.

[0027] In some embodiments, see Fig.15 The exhaust gas treatment system for the RTO regenerative incinerator also includes a window monitor 9, and the multi-channel combustion furnace 1 also includes a cleaning door 114 and a perspective window 115; the cleaning door 114 is movably hinged on the conversion chamber 111, and the perspective window 115 is fixedly arranged on the cleaning door 114, and the window monitor 9 is fixedly arranged on the cleaning door 114. When in use, the window monitor 9 monitors the internal situation of the conversion chamber 111 in real time. When the ash storage amount is greater than the set amount, the cleaning door 114 is opened for cleaning; by setting the cleaning door, the perspective window, and the window monitor, the monitor provides real-time feedback on the ash falling situation in the conversion chamber. When the ash falling reaches the set requirements, the equipment is closed for cleaning, which reduces the number of manual on-site inspections and the impact of the site on human health, improves the degree of automation and intelligence of the equipment, and effectively prevents the occurrence of pipeline blockage through real-time monitoring.

[0028] A process for using an exhaust gas treatment system for an RTO regenerative thermal incinerator comprises the following steps: S1, exhaust gas enters through the main air inlet 202 of the booster fan 201, and enters the main air inlet line 204 through the main air outlet 203 of the fan. After the first exhaust gas enters the first cavity 104 through the first air inlet pipe 205, it is burned in the combustion chamber 116, and the burned gas enters the second cavity 105 to preheat the heat storage body 109 in the second cavity 105, and then flows into the main air outlet pipe 301 through the second air outlet pipe 304, and finally flows into the next stage equipment through the main air outlet 302; at this time, part of the exhaust gas enters the back-blowing main air pipe 402 through the boost back-blowing air port 401, and enters the third cavity 106 through the third back-blowing air pipe 405, and the exhaust gas staying in the third cavity is back-blown into the combustion chamber 116 for full combustion; S2, for the second time, the exhaust gas enters the second intake pipe 206 through the intake main line 204, and then flows through the heat storage body 109 in the second cavity 105 for heat exchange, and preheats the gas. The gas is burned in the combustion chamber 116, and the burned gas enters the third cavity 106 to preheat the heat storage body 109 in the third cavity 106, and then flows into the main gas outlet pipe 301 through the third gas outlet pipe 305. At this time, part of the exhaust gas enters the first cavity 104 from the back-blowing main gas pipe 402 through the first back-blowing gas pipe 403, and the exhaust gas staying in the first cavity 104 is back-blown into the combustion chamber 116 for full combustion; S3, for the third time, the exhaust gas enters the third intake pipe 207 through the intake main line 204, and then flows through the heat storage body 109 in the third cavity 106 for heat exchange, and preheats the gas. After combustion in the combustion chamber 116, the combusted gas enters the first cavity 104, and preheats the heat storage body 109 in the first cavity 104. Then, the gas flows into the main gas outlet pipe 301 through the first gas outlet pipe 303. At this time, part of the exhaust gas enters the second cavity 105 from the back-blowing main gas pipe 402 through the second back-blowing gas pipe 404, and back-blown the exhaust gas staying in the second cavity 105 into the combustion chamber 116 for full combustion; the cycle is repeated in sequence; S4. When the first air intake pipe 205 needs to take in air, the first group of the air control valves 513 work, and the gas enters the air control groove 512 through the air control pipe 514, destroying the seal between the left hinged door 507, the right hinged door 508 and the intermediate support sealing platform 504, so that the gas passes smoothly. At this time, the left hinged door 507, the right hinged door 508 on the air control single-way mechanism 5 on the second air intake pipe 206 and the third air intake pipe 207 are elastically acted on by the strong spring 509 on the hinge shaft 505 and the seal between the intermediate support sealing platform 504 prevents gas backflow; when the second air intake pipe 206 and the third air intake pipe 207 need to take in air, the steps are the same.

[0029] S5. During assembly, the positioning posts 705 on each group of the self-positioning anti-blocking heat storage mechanisms 7 are inserted into the positioning holes 704 on another group of the self-positioning anti-blocking heat storage mechanisms 7, and the two groups are stacked in sequence; the gas flows through the hexagonal vents 701 on the stacked groups of the self-positioning anti-blocking heat storage mechanisms 7 to exchange heat; S6. When the gas enters the self-positioning anti-blocking heat storage mechanism 7 from bottom to top, the oscillating ceramic ball 8 vibrates up and down in the top square groove 702 and the bottom square groove 703 under the action of the pressurized gas; Obviously, the above embodiments are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, these obvious changes or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. An exhaust gas treatment system for an RTO regenerative incinerator, characterized in that: The multi-channel combustion furnace (1) comprises a furnace body support (101), a lower shell (102), an upper shell (103), a first cavity (104), a second cavity (105), a third cavity (106), a heat insulation layer (107), a support frame (108), a heat storage body (109), a funnel groove (110), a conversion cavity (111), an air inlet (112), an air outlet (113), a combustion chamber (116), and a burner (117); the lower shell (102) is fixedly arranged on the furnace body support (101), the upper shell (103) is fixedly arranged on the lower shell (102), the lower shell (102) is separated by an internal sheet metal partition into a first cavity (104), a second cavity (105), and a third cavity (106), the upper shell (103), the first cavity (104), the second cavity (105), and the third cavity (106), and the upper shell (103), the first cavity (104), the second cavity (105), and the third cavity (106) are A heat-insulating layer (107) is fixedly arranged in the cavity (105) and the third cavity (106); support frames (108) are fixedly arranged at the bottom of the first cavity (104), the second cavity (105) and the third cavity (106); a heat storage body (109) is fixedly arranged on each group of the support frames (108); a funnel groove (110) is fixedly arranged at the bottom; a plurality of conversion cavities (111) are provided, which are fixedly arranged at the bottom of each group of the funnel grooves (110); an air inlet (112) is arranged at the bottom of each group of the conversion cavities (111); and an air outlet (113) is opened on the side; the cavity surrounded by the heat-insulating layer (107) inside the upper shell (103) is a combustion chamber (116); and the burner (117) is fixedly arranged on the upper shell (103), passes through the heat-insulating layer (107) and enters the combustion chamber (116); An air intake mechanism (2) for conveying exhaust gas is fixedly arranged at the bottom of the multi-channel combustion furnace (1); The bottom of the multi-channel combustion furnace (1) is provided with a gas outlet mechanism (3) for conveying purified gas; A back-blowing mechanism (4) for cleaning the ventilation cavity is arranged at the bottom of the multi-channel combustion furnace (1).

2. The exhaust gas treatment system for an RTO regenerative thermal incinerator according to claim 1, characterized in that: The air intake mechanism (2) comprises a booster fan (201), a fan main air intake port (202), a fan main air outlet port (203), an air intake main pipeline (204), a first air intake pipe (205), a second air intake pipe (206), and a third air intake pipe (207); the booster fan (201) is fixedly arranged on one side of the multi-channel combustion furnace (1); a fan main air intake port (202) is provided on an outer circumferential extension end surface of the booster fan (201), and a fan main air outlet port (203) is provided on a side surface; one end of the air intake main pipeline (204) is closed, and the other end is fixedly connected to the fan main air outlet port (203); the first air intake pipe (205), the second air intake pipe (206), and the third air intake pipe (207) are respectively fixedly arranged on the air intake main pipeline (204), and are respectively fixedly connected to a plurality of groups of air intake ports (112) provided at the bottom of the conversion chamber (111).

3. The exhaust gas treatment system for an RTO regenerative thermal incinerator according to claim 2, characterized in that: The air outlet mechanism (3) comprises a main air outlet pipe (301), a main air outlet port (302), a first air outlet pipe (303), a second air outlet pipe (304), and a third air outlet pipe (305); one end of the main air outlet pipe (301) is closed, and the other end is externally connected to a clean air output device; the first air outlet pipe (303), the second air outlet pipe (304), and the third air outlet pipe (305) are respectively fixedly arranged on the main air outlet pipe (301), and are respectively fixedly connected to multiple groups of air outlet ports (113) opened on the side of the conversion chamber (111).

4. The exhaust gas treatment system for an RTO regenerative thermal incinerator according to claim 3, characterized in that: The multi-channel combustion furnace (1) further comprises a reducing tee (118), wherein the reducing tee (118) is provided with a first air inlet (119) at the bottom, a second air inlet (120) at the side, and a third air inlet (121) at the top; the reducing tee (118) is fixedly arranged between a plurality of groups of air inlets (112) at the bottom of the conversion chamber (111) and the corresponding first air inlet pipe (205), second air inlet pipe (206), and third air inlet pipe (207); a booster back-blowing air port (401) is provided at the top of the booster fan (201); and the back-blowing mechanism (4) comprises a back-blowing main air pipe (402), a first back-blowing air pipe (403), and a second back-blowing air pipe (404). 3), a second back-blowing air pipe (404), a third back-blowing air pipe (405), and a control valve (406); one end of the back-blowing main air pipe (402) is closed, and the other end is fixedly connected to the pressurized back-blowing air port (401); the first back-blowing air pipe (403), the second back-blowing air pipe (404), and the third back-blowing air pipe (405) are respectively fixedly arranged on the back-blowing main air pipe (402), and the other ends are fixedly connected to the second air inlet (120) on the plurality of groups of reducing tees (118); the first back-blowing air pipe (403), the second back-blowing air pipe (404), and the third back-blowing air pipe (405) are respectively fixedly arranged with a control valve (406).

5. The exhaust gas treatment system for an RTO regenerative thermal incinerator according to claim 4, characterized in that: The exhaust gas treatment system for the RTO regenerative incinerator further comprises an air-controlled single-way mechanism (5), wherein the air-controlled single-way mechanism (5) comprises a valve body (501), a valve body air inlet (502), a valve body air outlet (503), an intermediate support sealing platform (504), a hinge shaft (505), a spring support shaft (506), a left hinged door (507), a right hinged door (508), a strong spring (509), a limit end (510), a torsion end (511), an air-controlled groove (512), an air-controlled valve (513), and an air-controlled pipe (514); The valve body (501) is provided with a valve body air inlet (502) at the lower side and a valve body air outlet (503) at the upper side. An intermediate support sealing platform (504) is fixedly provided at the middle position inside the valve body (501). The hinge shaft (505) is fixedly provided at the middle position along the radial line of the valve body (501) and is provided on the upper side of the intermediate support sealing platform (504). The spring support shaft (506) is fixedly provided on the valve body (501). The upper side of the hinge shaft (505) is parallel to the axis. The left hinge door (507) and the right hinge door (508) are connected to the hinge shaft (509). The connecting door (508) is symmetrically hinged on the hinge shaft (505), symmetrically arranged on the hinge shaft (505), and when in a horizontal state, is in parallel contact with the intermediate support sealing platform (504). The strong spring (509) is provided with multiple groups, which are fixedly sleeved on the hinge shaft (505), and its two sides are respectively a limit end (510) and a torsion end (511). The limit end (510) is movably sleeved on the spring support shaft (506), and the limit end (510) is flat on the left hinged door (507), On the right hinged door (508), the intermediate support sealing platform (504) is provided with two groups of symmetrical air control grooves (512) near the inner wall of the valve body (501); the air control valve (513) is fixedly arranged on the outer wall of the valve body (501) and is connected to the left and right groups of the air control grooves (512) through two groups of the air control pipes (514); the air control single-way mechanism (5) is fixedly arranged between each group of the reducing tee (118) and the first air inlet pipe (205), the second air inlet pipe (206), and the third air inlet pipe (207).

6. The exhaust gas treatment system for an RTO regenerative thermal incinerator according to claim 5, characterized in that: The support frame (108) is composed of a double-layer support mechanism (6), and the double-layer support mechanism (6) comprises a square main support frame (601), a cross-shaped oblique support (602), and a mesh support screen (603); the cross-shaped oblique support (602) is provided in multiple groups and fixedly arranged between the multiple groups of square main support frames (601), and the mesh support screen (603) is fixedly arranged on the cross-shaped oblique support (602).

7. The exhaust gas treatment system for an RTO regenerative thermal incinerator according to claim 6, characterized in that: The heat storage body (109) is composed of a plurality of groups of self-positioning anti-blocking heat storage mechanisms (7), wherein the self-positioning anti-blocking heat storage mechanisms (7) comprise hexagonal vents (701), top square grooves (702), bottom square grooves (703), positioning holes (704), and positioning columns (705).

8. The exhaust gas treatment system for an RTO regenerative thermal incinerator according to claim 7, characterized in that: The waste gas treatment system for the RTO thermal storage incinerator also includes oscillating ceramic balls (8); the oscillating ceramic balls (8) are provided in multiple groups, and are movably arranged in the space enclosed by the top square groove (702) and the bottom square groove (703) on the two groups of the self-positioning anti-blocking thermal storage mechanisms (7), and can move freely.

9. The exhaust gas treatment system for an RTO regenerative thermal incinerator according to claim 8, characterized in that: The exhaust gas treatment system for the RTO regenerative thermal incinerator further comprises a window monitor (9), and the multi-channel combustion furnace (1) further comprises a cleaning door (114) and a perspective window (115); the cleaning door (114) is movably hinged on the conversion chamber (111), the perspective window (115) is fixedly mounted on the cleaning door (114), and the window monitor (9) is fixedly mounted on the cleaning door (114). When in use, the window monitor (9) monitors the internal conditions of the conversion chamber (111) in real time, and when the amount of stored ash is greater than a set amount, the cleaning door (114) is opened for cleaning.

10. The process for using the waste gas treatment system for the RTO regenerative thermal incinerator according to claim 9, characterized in that: The steps include: S1, exhaust gas enters through the main air inlet (202) of the booster fan (201), and enters the main air inlet pipe (204) through the main air outlet (203) of the fan. After the first exhaust gas enters the first cavity (104) through the first air inlet pipe (205), it is burned in the combustion chamber (116). The burned gas enters the second cavity (105), preheats the heat storage body (109) in the second cavity (105), and then flows into the main air outlet pipe (301) through the second air outlet pipe (304), and finally flows into the next stage equipment through the main air outlet (302); at this time, part of the exhaust gas enters the back-blowing main air pipe (402) through the booster back-blowing air port (401), and enters the third cavity (106) through the third back-blowing air pipe (405), and the exhaust gas staying in the third cavity is back-blown into the combustion chamber (116) for full combustion; S2, for the second time, the exhaust gas enters the second intake pipe (206) through the intake main line (204), and then flows through the heat storage body (109) in the second cavity (105) for heat exchange, and is preheated. The gas is burned in the combustion chamber (116), and the burned gas enters the third cavity (106) to preheat the heat storage body (109) in the third cavity (106). The gas then flows into the main gas outlet pipe (301) through the third gas outlet pipe (305). At this time, part of the exhaust gas enters the first cavity (104) from the back-blowing main gas pipe (402) through the first back-blowing gas pipe (403), and the exhaust gas staying in the first cavity (104) is back-blown into the combustion chamber (116) for full combustion. S3, for the third time, the exhaust gas enters the third intake pipe (207) through the intake main line (204), and then flows through the heat storage body (109) in the third cavity (106) for heat exchange, and preheats the gas. The gas is burned in the combustion chamber (116), and the burned gas enters the first cavity (104), and preheats the heat storage body (109) in the first cavity (104). The gas then flows into the main gas outlet pipe (301) through the first gas outlet pipe (303). At this time, part of the exhaust gas enters the second cavity (105) from the back-blowing main gas pipe (402) through the second back-blowing gas pipe (404), and back-blown the exhaust gas staying in the second cavity (105) into the combustion chamber (116) for full combustion. The cycle is repeated in sequence. S4. When the first air intake pipe (205) needs to take in air, the first group of the air control valves (513) work, and the air enters the air control groove (512) through the air control pipe (514), destroying the seal between the left hinged door (507), the right hinged door (508) and the intermediate support sealing platform (504), so that the air passes smoothly. At this time, the left hinged door (507) and the right hinged door (508) on the air control single-pass mechanism (5) on the second air intake pipe (206) and the third air intake pipe (207) are sealed with the intermediate support sealing platform (504) through the elastic action of the strong spring (509) on the hinge shaft (505), so as to prevent the gas from flowing back. When the second air intake pipe (206) and the third air intake pipe (207) need to take in air, the steps are the same; S5. During assembly, the positioning columns (705) on each group of the self-positioning anti-blocking heat storage mechanisms (7) are inserted into the positioning holes (704) on another group of the self-positioning anti-blocking heat storage mechanisms (7), and the groups are stacked in sequence; gas circulates through the hexagonal vents (701) on the stacked groups of the self-positioning anti-blocking heat storage mechanisms (7) to perform heat exchange; S6. When the gas enters the self-positioning anti-blocking heat storage mechanism (7) from bottom to top, the oscillating ceramic ball (8) vibrates up and down in the top square groove (702) and the bottom square groove (703) under the action of the pressurized gas.

Images