Low-energy consumption incinerator for treating high-concentration waste gas
By using a staged exhaust gas combustion structure and a dynamic temperature control system, the problems of high energy consumption and poor stability of high-concentration exhaust gas incinerators have been solved, achieving low-energy consumption and high-efficiency exhaust gas treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 唐山金沙燃烧热能股份有限公司
- Filing Date
- 2026-06-01
- Publication Date
- 2026-07-24
Smart Images
Figure CN122447702A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of incinerator technology, specifically to an incinerator for treating high-concentration waste gas with low energy consumption. Background Technology
[0002] Various waste gases are generated in coking, chemical, and other fields, containing combustible substances such as CO, H2, and VOCs. These are conventionally treated using various incineration methods, including direct-fired combustion (TO), regenerative thermal oxidizer (RTO), and catalytic combustion. Direct-fired TO incinerators are simple in structure and highly adaptable, but they are large in size and energy-intensive, requiring fuel to heat the waste gas to 850-1100℃ for oxidation. Regenerative thermal oxidizers (RTO) have low energy consumption but are expensive and require clean waste gas to prevent accumulator blockage. Catalytic combustion has a small footprint and extremely low energy consumption, but it has strict requirements on the composition of the waste gas to prevent catalyst poisoning, thus requiring costly waste gas pretreatment. Furthermore, the catalyst needs regular replacement, resulting in high maintenance costs.
[0003] Coking plants generate a certain amount of sulfur-containing waste gas during production. This waste gas contains 3-6% CO, small amounts of H2S, SO2, and other sulfides, as well as impurities such as dust and tar. The complex composition of this waste gas makes it susceptible to problems such as catalyst poisoning and regenerative thermal oxidizer (RTO) blockage when treated using catalytic combustion or RTO. Furthermore, these methods require significant investment. Using a direct-fired combustion (TO) furnace results in insufficient CO concentration in the waste gas for independent combustion, necessitating an additional heat source. Achieving optimal incineration efficiency with minimal fuel consumption through rational structural design has been a persistent challenge in the industry. Therefore, this paper proposes a low-energy-consumption incinerator for treating high-concentration waste gas. Summary of the Invention
[0004] The purpose of this invention is to provide an incinerator for treating high-concentration waste gas with low energy consumption, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: an incinerator for treating high-concentration waste gas with low energy consumption, comprising an incinerator body, a burner, a flame monitor, a front-end air intake mechanism, a rear-end air intake mechanism, and a heat storage wall. The burner is located at the front of the incinerator body, the flame monitor is located above the burner, and a temperature detector and an oxygen content detector are installed inside the incinerator body. The front-end air intake mechanism is located on the front air intake side of the incinerator body for primary air delivery of waste gas, and the rear-end air intake mechanism is located in the middle of the incinerator body for secondary air delivery of waste gas. Multiple heat storage walls are provided, and several heat storage walls are arranged at equal intervals in the middle of the inner side of the incinerator body. Diffusion communication holes are evenly provided in the middle of the heat storage walls.
[0006] Preferably, the lower part of the incinerator body is provided with an installation base, and the incinerator body is fixedly installed on the upper part of the installation base in a horizontal position by a bracket, and a reaction chamber is provided in the middle of the incinerator body.
[0007] Preferably, the furnace wall of the incinerator includes a fireproof material layer, a heat insulation layer, and a furnace shell. The fireproof material layer and the furnace shell are respectively provided on the inner and outer sides of the furnace wall of the incinerator. The heat insulation layer is integrally fixed and clamped between the fireproof material layer and the furnace shell.
[0008] Preferably, the burner is fixedly installed at the front center of the incinerator body, and the flame monitor is installed at an angle at the front of the incinerator body, with the detection end of the flame monitor facing the end combustion side of the burner.
[0009] Preferably, the aforementioned front-end air intake mechanism includes a front air inlet pipe, a front annular air inlet seat, and a front exhaust gas injection pipe. The front annular air inlet seat is fixedly fitted and installed on the front furnace wall side of the incinerator body. The front annular air inlet seat and the burner are installed concentrically. A front exhaust gas annular channel is provided in the middle of the front annular air inlet seat.
[0010] Preferably, the aforementioned front air intake pipe is fixedly connected to the front side of the front annular air intake seat. Multiple front exhaust gas injection pipes are provided, and several of the front exhaust gas injection pipes are circumferentially distributed and fixedly connected to the rear side of the front annular air intake seat. The front exhaust gas injection pipes are inclined, and a front exhaust gas nozzle is provided in the middle of the front exhaust gas injection pipe. The direction of the front exhaust gas nozzle is inclined towards the center.
[0011] Preferably, the aforementioned rear air intake mechanism includes a rear air intake end pipe, a rear annular air intake seat, and a rear exhaust gas injection pipe. Multiple rear annular air intake seats are provided, and several of the rear annular air intake seats are distributed at equal intervals and fixedly fitted into the furnace wall side in the middle of the incinerator body. A rear exhaust gas annular channel is provided in the middle of the rear annular air intake seat.
[0012] Preferably, the aforementioned rear air inlet pipe is fixedly connected to the upper part of the rear annular air inlet seat. Multiple rear exhaust gas injection pipes are provided, and several rear exhaust gas injection pipes are circumferentially distributed and fixedly connected to the inner side of the rear annular air inlet seat. The rear exhaust gas injection pipes are inclined and biased. A rear exhaust gas nozzle is provided in the middle of the rear exhaust gas injection pipe. The rear exhaust gas nozzle is inclined towards the tail of the furnace and has a fixed rotation direction.
[0013] Preferably, the heat storage walls are fixedly installed at equal intervals in the middle of the front side of the reaction chamber, and the diffusion communication holes are opened through the middle of the heat storage walls.
[0014] Preferably, multiple temperature measuring points are provided on the upper furnace wall side of the incinerator body. The temperature detectors are vertically distributed and fixedly installed at the temperature measuring points on the furnace wall side of the incinerator body, and the oxygen content detectors are vertically distributed and fixedly installed on the rear furnace wall side of the incinerator body. After installation, the detection ends of the temperature detectors and oxygen content detectors are both located inside the reaction chamber.
[0015] Compared with the prior art, the present invention, employing the above technical solution, has the following technical effects: This incinerator adopts a staged inlet waste gas combustion treatment structure. Front-end and rear-end inlet mechanisms are respectively installed at the front and middle sections of the incinerator. During operation, the waste gas is introduced into the furnace in batches through these mechanisms. This staged inlet design avoids incomplete combustion caused by concentrated waste gas, resulting in more complete combustion and significantly improving the waste gas treatment and purification effect. Furthermore, the first-stage inlet structure is located near the burner. At this stage, the CO contained in the waste gas will oxidize and release heat. This combustion assistance from the waste gas allows for a rapid increase in furnace temperature. Only a small amount of fuel is needed to preheat the furnace. The gas then mixes and reacts again with the subsequently introduced waste gas, further increasing the furnace temperature to the rated temperature. This rapid increase in furnace temperature reduces fuel consumption, significantly lowering the incinerator's energy consumption.
[0016] Both the front and rear exhaust gas injection pipes are circumferentially distributed and inclined, enabling uniform injection and delivery of exhaust gas during operation. A heat storage wall is located in the center of the furnace body, with multiple sets of spaced-apart heat storage walls and evenly spaced diffusion and communication holes in the center. During operation, the diffusion and communication holes promote the mixing of incoming exhaust gas with high-temperature flue gas, ensuring thorough combustion. Furthermore, the heat storage wall itself reaches extremely high temperatures after heating, and its porous structure increases the contact area with the exhaust gas, allowing for rapid heat exchange and temperature rise of the incoming low-temperature exhaust gas, providing a suitable temperature environment for oxidation and significantly improving the stability of the device's processing operation.
[0017] The system employs a dynamic temperature control structure, with temperature and oxygen content detectors installed inside the incinerator. During operation, the temperature inside the furnace is monitored by temperature detectors distributed at various points within the furnace. Temperature feedback is used to control the amount of waste gas injected. By utilizing the heat absorption from the mixing of ambient temperature waste gas and flue gas inside the furnace, the temperature at the tail end of the furnace, i.e., the reaction chamber, is kept at a level not lower than the reaction temperature. Simultaneously, the oxygen content of the gas exiting the reaction chamber is monitored by the oxygen content detector. By adjusting the amount of air input to the burner, sufficient oxygen is provided for combustion, ensuring a stable working environment within the furnace and significantly improving the operational stability of the device. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic cross-sectional view of the incinerator structure of the present invention; Figure 2 This is a schematic diagram of the internal working structure of the incinerator of the present invention. Figure 3 For the present invention Figure 2 Schematic diagram of the structure of region A in the middle.
[0020] Explanation of reference numerals in the attached drawings: 1. Incinerator body; 11. Fireproof material layer; 12. Insulation layer; 13. Furnace shell; 2. Burner; 3. Flame monitor; 4. Front air intake mechanism; 41. Front air intake end pipe; 42. Front annular air intake seat; 43. Front exhaust gas injection pipe; 5. Rear air intake mechanism; 51. Rear air intake end pipe; 52. Rear annular air intake seat; 53. Rear exhaust gas injection pipe; 6. Heat storage wall; 61. Diffusion communication hole; 7. Temperature detector; 8. Oxygen content detector; 9. Reaction chamber. Detailed Implementation
[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0022] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce. Example
[0023] Please see Figure 1-3 This invention provides a technical solution: a low-energy-consumption incinerator for treating high-concentration waste gas, comprising an incinerator body 1, a burner 2, a flame monitor 3, a front-end air intake mechanism 4, a rear-end air intake mechanism 5, and a heat storage wall 6. The incinerator body 1 is used for the incineration treatment of waste gas, as shown in the attached figure. Figure 1As shown, for ease of installation and support, an installation base is provided at the lower part of the incinerator body 1. The incinerator body 1 is fixedly installed on the upper part of the installation base in a horizontal position by the support bracket. For the convenience of combustion reaction, a reaction chamber 9 is provided in the middle of the incinerator body 1. The furnace wall of the incinerator body 1 includes a fireproof material layer 11, a heat insulation layer 12, and a furnace shell 13. The fireproof material layer 11 can be a composite high-temperature resistant ceramic material, which has good high-temperature fire resistance and acid corrosion resistance. The furnace shell 13 can be made of carbon steel, which has good structural support and protection strength. The fireproof material layer 11 and the furnace shell 13 are respectively provided on the inner and outer sides of the furnace wall of the incinerator body 1, which are used for the inner and outer surface protection of the incinerator body 1. The heat insulation layer 12 can be aluminum silicate fiberboard, which has good heat insulation and heat preservation properties. The heat insulation layer 12 is integrally fixed and clamped between the fireproof material layer 11 and the furnace shell 13, which can realize the stable working heat insulation protection of the outer wall of the incinerator body 1.
[0024] Burner 2 is located at the front of incinerator body 1 and is used for combustion heating of incinerator body 1. Specifically, see attached... Figure 1 As shown, burner 2 is fixedly installed at the center of the front part of incinerator body 1, and flame detector 3 is located on the upper side of burner 2 for monitoring the working status of flame detector 3. Flame detector 3 is a device in the prior art, and its specific structure can refer to the flameout detector of model BWFZJ-13A in the prior art, as shown in the attached figure. Figure 2 As shown, the flame monitor 3 is installed at an angle at the front of the incinerator body 1, with the detection end of the flame monitor 3 facing the end combustion side of the burner 2, and is used for monitoring the combustion status of the burner 2.
[0025] The front-end air intake mechanism 4 is located on the front air intake side of the incinerator body 1 for primary air delivery of waste gas. Specifically, see attached... Figure 2As shown, the front-end air intake mechanism 4 includes a front air inlet pipe 41, a front annular air inlet seat 42, and a front exhaust gas injection pipe 43. The front annular air inlet seat 42 is fixedly fitted and installed on the front wall side of the incinerator body 1. The front annular air inlet seat 42 and the burner 2 are installed concentrically. To facilitate the introduction and delivery of exhaust gas, a front exhaust gas annular channel is provided in the middle of the front annular air inlet seat 42. The front air inlet pipe 41 is fixedly connected to the front side of the front annular air inlet seat 42 for the supply of exhaust gas. Multiple front exhaust gas injection pipes 43 are provided, and several front exhaust gas injection pipes 43 are circumferentially distributed and fixedly connected to the front annular air inlet seat 42. On the rear side, the front exhaust gas injection pipe 43 is inclined. To facilitate exhaust gas injection, a front exhaust gas nozzle is provided in the middle of the front exhaust gas injection pipe 43. The direction of the front exhaust gas nozzle is inclined towards the center. The first-stage air intake structure is located near the burner 2. At this time, the CO contained in the exhaust gas will oxidize and release heat. With the combustion assistance of the exhaust gas, the furnace temperature can be rapidly increased. Only a small amount of fuel is needed to preheat the furnace body. Then, it mixes and reacts again with the subsequently entering exhaust gas to continue to increase the furnace temperature to the rated temperature. While rapidly increasing the furnace temperature, the consumption of working fuel can be reduced, which greatly reduces the working energy consumption of the incinerator.
[0026] The rear-end air intake mechanism 5 is located in the middle of the incinerator body 1 for secondary delivery of waste gas. Specifically, the rear-end air intake mechanism 5 includes a rear air intake end pipe 51, a rear annular air intake seat 52, and a rear waste gas injection pipe 53, as shown in the attached diagram. Figure 2 As shown, two sets of rear-end annular air inlets 52 are provided. The two sets of rear-end annular air inlets 52 are equidistantly distributed and fixedly fitted into the furnace wall side in the middle of the incinerator body 1. A staged inlet type waste gas combustion treatment structure is adopted. A front-end air inlet mechanism 4 and a rear-end air inlet mechanism 5 are respectively provided at the front and middle parts of the incinerator. During operation, the waste gas to be incinerated is transported into the furnace body in batches through the front-end air inlet mechanism 4 and the rear-end air inlet mechanism 5. Staged inlet can avoid incomplete combustion caused by concentrated waste gas, so that the waste gas combustion treatment is more complete and the waste gas treatment and purification effect of the device is greatly improved. In order to facilitate the connection and guidance of waste gas, a rear-end waste gas annular channel is provided in the middle of the rear-end annular air inlet 52, as shown in the attached figure. Figure 3As shown, the rear air inlet pipe 51 is fixedly connected to the upper part of the rear annular air inlet seat 52 for supplying exhaust gas. Multiple rear exhaust gas injection pipes 53 are provided, and several rear exhaust gas injection pipes 53 are circumferentially distributed and fixedly connected to the inner side of the rear annular air inlet seat 52. The rear exhaust gas injection pipes 53 are inclined and biased. In order to facilitate the directional injection of exhaust gas, a rear exhaust gas nozzle is provided in the middle of the rear exhaust gas injection pipe 53. The rear exhaust gas nozzle is inclined towards the tail of the furnace and has a fixed rotation direction with an inclination angle of 15 degrees. Both the front exhaust gas injection pipe 43 and the rear exhaust gas injection pipe 53 are circumferentially distributed and inclined. During operation, the exhaust gas can be uniformly injected and transported. Furthermore, the fixed rotation direction of the rear exhaust gas nozzle can improve the uniformity of the incoming exhaust gas flow and facilitate the improvement of the uniformity of exhaust gas mixing.
[0027] The heat storage wall 6 is a perforated wall constructed of refractory bricks, allowing for normal flow of the medium, as shown in the attached... Figure 2 As shown, three sets of heat storage walls 6 are provided. The three sets of heat storage walls 6 are fixedly installed at equal intervals in the middle of the front side of the reaction chamber 9. In order to facilitate gas diffusion and communication, diffusion communication holes 61 are evenly arranged in the middle of the heat storage walls 6. The diffusion communication holes 61 are opened through the middle of the heat storage walls 6. The heat storage walls 6 have two functions. First, the diffusion communication holes 61 have a turbulent effect on the exhaust gas, promoting the mixing of the newly introduced exhaust gas and the high-temperature flue gas. Second, after being heated, the heat storage walls 6 themselves have extremely high temperatures. Through the porous structure design, the contact area with the exhaust gas can be increased. During operation, the low-temperature exhaust gas can be rapidly heated by heat exchange, providing a suitable temperature environment for oxidation.
[0028] To achieve environmental parameter sensing within the incinerator body 1, as shown in the attached... Figure 2As shown, a temperature detector 7 and an oxygen content detector 8 are installed inside the incinerator body 1. To facilitate the connection and installation of the temperature detector 7, multiple temperature measuring points are set on the upper furnace wall side of the incinerator body 1. The temperature detector 7 is vertically distributed and fixedly installed at the temperature measuring points on the furnace wall side of the incinerator body 1. The oxygen content detector 8 is vertically distributed and fixedly installed on the rear furnace wall side of the incinerator body 1 to detect the oxygen content of the flue gas at the outlet side of the incinerator body 1. After installation, the detection ends of both the temperature detector 7 and the oxygen content detector 8 are located inside the reaction chamber 9, and a dynamic temperature control structure is adopted. Temperature detectors 7 and 8 are installed inside the incinerator body 1. The detectors 7 and 8, as well as the temperature detectors 7 and 8, all utilize existing technology. During operation, the temperature inside the furnace is monitored by the temperature detectors 7, which are located at various temperature measuring points within the furnace. The amount of waste gas injected is controlled by temperature feedback. By utilizing the heat absorption from the mixing of ambient temperature waste gas and the flue gas inside the furnace, the temperature at the tail end of the furnace, i.e., the reaction chamber 9, is controlled to be no lower than 850℃. Simultaneously, the oxygen content of the gas exiting the reaction chamber 9 is monitored by the oxygen detector 8. By adjusting the amount of air input to the burner 2, sufficient oxygen is provided for combustion, ensuring a stable working environment within the furnace and significantly improving the operational stability of the device.
[0029] Working principle or structural principle: Furnace preheating: When the incinerator is running, burner 2 uses stable combustible fuels such as natural gas, coke oven gas, and fuel oil as the heat source for ignition and combustion. During the process, flame monitor 3 detects the flame of burner 2 and ensures normal operation of the device by feeding back flame signals. Once no flame is detected at burner 2, the equipment will shut down for protection. The furnace temperature is raised to above 850°C by heating with burner 2, thus completing the preheating of the incinerator. Front-end exhaust gas introduction: After the incinerator is preheated and heated, the valve on the front exhaust pipe 41 side is opened, and a portion of the exhaust gas is sent in through the front exhaust pipe 41. During the process, the exhaust gas flows in the front exhaust gas annular channel in the middle of the front annular air intake seat 42, and then enters the furnace body through the front exhaust gas injection pipe 43. The exhaust gas is sprayed out through the front exhaust gas nozzle in the middle of the front exhaust gas injection pipe 43. The exhaust gas comes into direct contact with the flame of the burner 2. The combustibles in the exhaust gas undergo an oxidation reaction that releases heat, further increasing the temperature inside the furnace body. By controlling the amount of exhaust gas entering from the front exhaust pipe 41 side, the temperature of the reaction chamber 9 is controlled to be maintained at around 1100℃. Rear exhaust gas inlet: The flue gas after preliminary combustion and the exhaust gas after incineration flow into the rear furnace through the heat storage wall 6. During the process, the exhaust gas is evenly diffused through the diffusion connection hole 61 in the middle of the heat storage wall 6. At the same time, the valve body on the side of the rear air inlet pipe 51 is opened to send another part of the exhaust gas through the rear air inlet pipe 51. During the process, the exhaust gas flows in the rear exhaust gas annular channel in the middle of the rear annular air inlet seat 52, and then enters the furnace body through the rear exhaust gas injection pipe 53. The exhaust gas is sprayed out through the rear exhaust gas nozzle in the middle of the rear exhaust gas injection pipe 53. The exhaust gas enters the furnace in an inclined rotation direction and mixes with the high temperature front exhaust gas after reaction. During the process, the circulating exhaust gas is evenly mixed and mixed through the diffusion connection hole 61 in the middle of the heat storage wall 6. Maintaining the working environment: Although the injection of ambient temperature exhaust gas during the reaction process will cause a certain temperature drop in the mixed exhaust gas, the combustibles in it will undergo oxidation at high temperature, resulting in an exothermic reaction, which slows down the temperature drop of the exhaust gas mixture and maintains a stable reaction temperature environment in the reaction chamber 9. During the operation, the temperature inside the furnace is detected by temperature detectors 7 distributed at various temperature measuring points in the furnace body. The temperature feedback controls the amount of exhaust gas injected to ensure that the temperature at the tail end of the furnace, i.e., the reaction chamber 9, is not lower than 850℃. At the same time, the oxygen content of the gas at the outlet of the reaction chamber 9 is detected by oxygen content detectors 8. By adjusting the amount of air input to the burner 2, sufficient oxygen is provided for combustion, ensuring that a stable working environment is maintained inside the furnace.
[0030] In summary, this incinerator adopts a staged inlet waste gas combustion treatment structure. A front-end inlet mechanism 4 and a rear-end inlet mechanism 5 are respectively installed at the front and middle sections of the incinerator. During operation, the waste gas is introduced into the furnace in batches through the front-end and rear-end inlet mechanisms 4 and 5. This staged inlet design avoids incomplete combustion caused by concentrated waste gas, resulting in more complete combustion and significantly improving the waste gas treatment and purification effect of the device. Furthermore, the first-stage inlet structure is located near the burner 2, where the CO contained in the waste gas will oxidize and release heat. The combustion-assisted gas can rapidly raise the furnace temperature. Only a small amount of fuel is needed to preheat the furnace. The gas then mixes and reacts with the subsequently entering exhaust gas, further raising the furnace temperature to the rated temperature. This rapid temperature increase reduces fuel consumption and significantly lowers the incinerator's energy consumption. The front exhaust gas injection pipe 43 and the rear exhaust gas injection pipe 53 are both circumferentially distributed and inclined, ensuring uniform exhaust gas delivery during operation. A heat storage wall 6 is located in the middle of the furnace body. Multiple groups of diffuser walls 61 are spaced out and evenly distributed in the center. During operation, the diffusion through the diffuser walls 61 promotes the mixing of the incoming waste gas and the high-temperature flue gas, ensuring thorough combustion. Furthermore, the heat storage wall 6, after heating, has an extremely high temperature. Its porous structure increases the contact area with the waste gas, allowing for rapid heat exchange and temperature rise of the incoming low-temperature waste gas, providing a suitable temperature environment for oxidation and significantly improving the stability of the device. A dynamic temperature control structure is employed within the incinerator. The furnace is equipped with a temperature detector 7 and an oxygen content detector 8. During operation, the temperature inside the furnace is detected by the temperature detector 7 at various temperature measuring points distributed throughout the furnace. The amount of waste gas injected is controlled by temperature feedback. By using the heat absorption of the mixture of ambient temperature waste gas and flue gas inside the furnace, the temperature at the tail end of the furnace, i.e., the reaction chamber 9, is controlled to be no lower than the reaction temperature. At the same time, the oxygen content of the gas at the outlet of the reaction chamber 9 is detected by the oxygen content detector 8. By adjusting the amount of air input to the burner 2, sufficient oxygen is provided for combustion, ensuring a stable working environment inside the furnace and greatly improving the working stability of the device.
[0031] Those skilled in the art will understand that the features described in the various embodiments and / or claims of the present invention can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention can be combined or combined in various ways without departing from the spirit and teachings of the present invention. All such combinations and / or combinations fall within the scope of the present invention.
Claims
1. A low-energy-consumption incinerator for treating high-concentration waste gas, comprising an incinerator body (1), a burner (2), a flame monitor (3), a front-end air intake mechanism (4), a rear-end air intake mechanism (5), and a heat storage wall (6), characterized in that, The burner (2) is located at the front of the incinerator body (1), the flame monitor (3) is located on the upper side of the burner (2), and the incinerator body (1) is equipped with a temperature detector (7) and an oxygen content detector (8). The front-end air intake mechanism (4) is located on the front air intake side of the incinerator body (1) for primary air delivery of waste gas. The rear-end air intake mechanism (5) is located in the middle of the incinerator body (1) for secondary air delivery of waste gas. Multiple heat storage walls (6) are provided. Several heat storage walls (6) are arranged at equal intervals in the middle of the inner side of the incinerator body (1). The middle of the heat storage wall (6) is uniformly provided with diffusion communication holes (61).
2. The incinerator for treating high-concentration waste gas with low energy consumption according to claim 1, characterized in that, The lower part of the incinerator body (1) is provided with an installation base. The incinerator body (1) is fixedly installed on the upper part of the installation base in a horizontal position by a bracket. The middle part of the incinerator body (1) is provided with a reaction chamber (9).
3. The incinerator for treating high-concentration waste gas with low energy consumption according to claim 2, characterized in that, The furnace wall of the incinerator body (1) includes a fireproof material layer (11), a heat insulation layer (12) and a furnace shell (13). The fireproof material layer (11) and the furnace shell (13) are respectively provided on the inner and outer sides of the furnace wall of the incinerator body (1). The heat insulation layer (12) is integrally fixed and clamped between the fireproof material layer (11) and the furnace shell (13).
4. The incinerator for treating high-concentration waste gas with low energy consumption according to claim 3, characterized in that, The burner (2) is fixedly installed at the center of the front part of the incinerator body (1), and the flame monitor (3) is installed at an angle at the front part of the incinerator body (1), with the detection end of the flame monitor (3) facing the end combustion side of the burner (2).
5. The incinerator for treating high-concentration waste gas with low energy consumption according to claim 2, characterized in that, The front-end air intake mechanism (4) includes a front air intake pipe (41), a front-end annular air intake seat (42), and a front exhaust gas injection pipe (43). The front-end annular air intake seat (42) is fixedly fitted and installed on the front furnace wall side of the incinerator body (1). The front-end annular air intake seat (42) and the burner (2) are installed in a concentric distribution. A front exhaust gas annular channel is provided in the middle of the front-end annular air intake seat (42).
6. The incinerator for treating high-concentration waste gas with low energy consumption according to claim 5, characterized in that, The front air inlet pipe (41) is fixedly connected to the front side of the front annular air inlet seat (42). Multiple front exhaust gas injection pipes (43) are provided. Several front exhaust gas injection pipes (43) are arranged in a circumferential shape and fixedly connected to the rear side of the front annular air inlet seat (42). The front exhaust gas injection pipes (43) are inclined. A front exhaust gas nozzle is provided in the middle of the front exhaust gas injection pipe (43). The direction of the front exhaust gas nozzle is inclined towards the center.
7. The incinerator for treating high-concentration waste gas with low energy consumption according to claim 6, characterized in that, The rear air intake mechanism (5) includes a rear air intake end pipe (51), a rear annular air intake seat (52) and a rear exhaust gas injection pipe (53). Multiple rear annular air intake seats (52) are provided. Several rear annular air intake seats (52) are distributed at equal intervals and fixedly fitted to the furnace wall side in the middle of the incinerator body (1). A rear exhaust gas annular channel is provided in the middle of the rear annular air intake seat (52).
8. The incinerator for treating high-concentration waste gas with low energy consumption according to claim 7, characterized in that, The rear air inlet pipe (51) is fixedly connected to the upper part of the rear annular air inlet seat (52). Multiple rear exhaust gas injection pipes (53) are provided. Several rear exhaust gas injection pipes (53) are circumferentially distributed and fixedly connected to the inner side of the rear annular air inlet seat (52). The rear exhaust gas injection pipes (53) are inclined and biased. The rear exhaust gas nozzle is provided in the middle of the rear exhaust gas injection pipe (53). The rear exhaust gas nozzle is inclined towards the tail of the furnace and has a fixed rotation direction.
9. The incinerator for treating high-concentration waste gas with low energy consumption according to claim 8, characterized in that, The heat storage wall (6) is fixedly installed in the middle of the front side of the reaction chamber (9) at equal intervals, and the diffusion communication hole (61) is opened through the middle of the heat storage wall (6).
10. An incinerator for treating high-concentration waste gas with low energy consumption according to claim 9, characterized in that, Multiple temperature measuring points are provided on the upper furnace wall side of the incinerator body (1). The temperature detector (7) is vertically distributed and fixedly installed at the temperature measuring points on the furnace wall side of the incinerator body (1). The oxygen content detector (8) is vertically distributed and fixedly installed on the rear furnace wall side of the incinerator body (1). After installation, the detection ends of the temperature detector (7) and the oxygen content detector (8) are both located inside the reaction chamber (9).