RTO waste gas incineration preheating device

Abstract

The invention relates to the technical field of incineration preheating, in particular to an RTO waste gas incineration preheating device.According to the scheme, a heat storage bed is composed of heat storage bodies, a heat storage plate and a heat storage net body, the bottommost layer is composed of a plurality of heat storage bodies, that is, the heat storage bodies are placed on a supporting frame body, and entering gas is preheated through the heat storage bodies; gas passes through a honeycomb opening in the heat accumulator; the heat storage plate is composed of a heat storage plate, and circulation openings corresponding to the honeycomb openings are formed in the heat storage plate; a connecting pipe fitting and a conical bottom pipe which are used for providing a gas filtering effect are arranged at the bottom end of the circulation opening, so that excessive impurities are prevented from entering the combustion chamber; according to the scheme, the first spoiler and the second spoiler are arranged at the top end of the circulation opening, so that a spoiler effect is provided for the gas, and the positive effect is achieved for improving the preheating sufficiency of the gas; in order to further improve the preheating effect, a plurality of heat storage beds can be arranged in one heat storage chamber, so that the gas preheating treatment sufficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of incineration preheating technology, and in particular to an RTO waste gas incineration preheating device. Background Technology

[0002] A regenerative thermal oxidizer (RTO) is an environmentally friendly device for efficiently treating industrial organic waste gas. It is widely used in the green industrial transformation under the current "dual carbon" goals (carbon peaking and carbon neutrality). The RTO decomposes volatile organic compounds (VOCs) into harmless carbon dioxide and water vapor through a high-temperature oxidation reaction, while simultaneously recovering combustion heat using a ceramic regenerator, achieving energy recycling. Its core structure includes a combustion chamber, a ceramic regenerator bed, switching valves, and a related intelligent control system.

[0003] Its relevant workflow is as follows: Preheating stage: Organic waste gas absorbs the residual heat from the previous combustion through the ceramic regenerator bed, and the temperature rises to above 700℃ (close to the combustion temperature). High-temperature oxidation: The preheated exhaust gas enters the combustion chamber (760-850℃), where VOCs are completely oxidized and decomposed into CO2 and H2O under oxygen-rich conditions; Heat recovery: The purified high-temperature gas flows through another set of ceramic heat storage beds, releasing heat to heat the heat storage body and prepare for the next round of exhaust gas preheating.

[0004] For the preheating stage, preheating is carried out through a ceramic regenerative bed, which consists of multiple ceramic regenerators. The regenerative bed, composed of multiple ceramic regenerators, is set in a regenerative chamber. For the combustion and purification of organic gases, three regenerative chambers are used in conjunction with a combustion chamber. An induced draft fan draws organic gases into one of the regenerative chambers, where they are preheated by the initially heated regenerative bed before entering the combustion chamber for combustion. Simultaneously, backflushing gas is injected into one of the other two combustion chambers, causing the purified gas to exit from the third regenerative chamber. In other words, the heated gas heats the regenerative bed as it passes through the third combustion chamber. In the next stage, when organic gases are introduced again, they need to be introduced from the regenerative chamber of the heated regenerative bed. At this time, the heated regenerative bed provides a preheating function for the gas, improving the thermal energy utilization efficiency.

[0005] Therefore, it can be seen that when using a regenerator bed, the introduced organic gas passes through the regenerator bed, and after passing upward from the bottom of the regenerator bed, it enters the combustion chamber for combustion. The gas purified by combustion passes through the regenerator bed from top to bottom and is discharged. In actual use, on the one hand, when using the regenerator, multiple layers of regenerator form a regenerator bed. The gas passes through the honeycomb openings in the regenerator. During this process, the gas may not have sufficient contact with the regenerator, that is, it will pass directly through the honeycomb openings, resulting in insufficient preheating. On the other hand, too many impurities in the gas will also enter the combustion chamber.

[0006] Therefore, this invention proposes an RTO waste gas incineration preheating device to solve the above problems. Summary of the Invention

[0007] The purpose of this invention is to provide an RTO waste gas incineration preheating device to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an RTO waste gas incineration preheating device, comprising a heat storage body, wherein honeycomb openings for ventilation are uniformly arranged in the heat storage body; A heat storage plate, with a second mounting plate provided on its side, and flow ports evenly provided in the heat storage plate; A heat storage mesh is provided inside the frame of the supporting frame, and a third mounting plate is provided on the outside of the supporting frame. The heat storage body, heat storage plate, and heat storage mesh form a heat storage bed, which is used to preheat the gas. The heat storage plate is located above the heat storage body, and the heat storage mesh is located above the heat storage plate.

[0009] Preferably, the heat storage plate is supported by a support frame. A first mounting plate is fixedly installed on the side of the support frame for installing and fixing the support frame. Placement cavities are evenly arranged in the support frame, and a limit support frame is fixedly installed on the inner wall of the bottom cavity opening of the placement cavity.

[0010] Preferably, the limiting support frame is used to support the heat storage body; A heat storage element is installed in a placement cavity.

[0011] Preferably, flow ports are uniformly arranged in the heat storage plate, and the flow ports correspond to the positions of the honeycomb ports in the heat storage body and are arranged in the same number of groups.

[0012] Preferably, a first baffle is symmetrically fixed at the top slot side of the flow port in the heat storage plate; A first arc-shaped guide plate is provided at the top of the first spoiler.

[0013] Preferably, the first spoiler is also configured as an arc-shaped plate, and the bottom end of the first spoiler is fixedly connected to the slot of the flow port.

[0014] Preferably, a second baffle is symmetrically fixed at the top slot side of the flow port in the heat storage plate; A second arc-shaped guide plate is fixedly installed at the top of the second spoiler; The second spoiler is also designed to be arc-shaped, and the bottom end of the second spoiler is fixedly connected to the slot of the flow port.

[0015] Preferably, the height of the second spoiler is higher than that of the first spoiler; The second spoiler and the first spoiler are each arranged in two sets symmetrically.

[0016] Preferably, a connecting pipe is fixedly installed at the bottom slot of the flow port in the heat storage plate, and the bottom end of the connecting pipe is provided with a tapered bottom pipe; Auxiliary mesh holes are evenly arranged in the tapered bottom pipe and connecting pipe fittings. These auxiliary mesh holes are used for gas flow on the one hand, and provide a filtering effect for impurities in the gas on the other hand. The number of tapered bottom pipes and connecting fittings is the same as that of the flow port, that is, a tapered bottom pipe and a connecting fitting are set at the bottom of each flow port.

[0017] Preferably, both the second spoiler and the first spoiler provide a turbulence effect on the gas flowing out of the flow port.

[0018] Compared with the prior art, the beneficial effects of the present invention are: The RTO waste gas incineration preheating device designed in this invention includes a heat storage body with honeycomb openings uniformly arranged in the heat storage body for ventilation; a heat storage plate with a second mounting plate arranged on the side of the heat storage plate and flow openings uniformly arranged in the heat storage plate; and a heat storage mesh body arranged inside the frame of a supporting frame and with a third mounting plate arranged on the outside of the supporting frame. The heat storage bed in this scheme consists of heat storage bodies, heat storage plates, and heat storage mesh. The bottom layer consists of multiple heat storage bodies, which are placed on a support frame. The incoming gas is preheated through the heat storage bodies and passes through the honeycomb openings in the heat storage bodies. Then it reaches the second layer, which consists of heat storage plates with flow ports corresponding to the honeycomb openings. Based on this, a connecting pipe and a tapered bottom pipe are installed at the bottom of the flow port to provide a filtering effect for the gas, thereby preventing excessive impurities from entering the combustion chamber. On the other hand, this scheme also installs a first baffle and a second baffle at the top of the flow port to provide a turbulence effect for the gas, that is, to disrupt the airflow, which has a positive effect on improving its preheating adequacy. Finally, it is preheated again through the heat storage mesh.

[0019] In this scheme, a heat storage bed consists of three layers: heat storage body, heat storage plate, and heat storage mesh. To further improve the preheating effect, multiple heat storage beds can be set up in one heat storage chamber to improve the adequacy of its gas preheating treatment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the connection plane of the preheating and heat storage bed structure of the present invention; Figure 2 for Figure 1 Enlarged schematic diagram of the structural connection at point A in the middle; Figure 3 This is a top view of the connection between the heat storage body and the support frame structure of the present invention; Figure 4 This is a schematic diagram of the connection between the heat storage body and the support frame structure of the present invention from the bottom. Figure 5 This is a schematic diagram of the support frame structure connection of the present invention; Figure 6 for Figure 5 Enlarged schematic diagram of the structural connection at point B; Figure 7 This is a partial schematic diagram of the connection of the top structure of the heat storage plate of the present invention; Figure 8 for Figure 7 Enlarged schematic diagram of the structural connection at point C; Figure 9 This is a partial schematic diagram of the connection of the bottom structure of the heat storage plate; Figure 10 for Figure 9 Enlarged schematic diagram of the structural connection at point D; Figure 11 This is a schematic diagram of the partial structure connection of the heat storage mesh of the present invention.

[0021] In the figure: heat storage body 101, honeycomb opening 102, support frame 103, first mounting plate 104, placement cavity 105, limiting support frame 106; Heat storage plate 201, second mounting plate 202, flow port 203; First spoiler 301, first arc-shaped guide plate 302, second spoiler 303, second arc-shaped guide plate 304; Connecting fitting 401, tapered bottom pipe 402, auxiliary mesh 403; The supporting frame 501, the third mounting plate 502, and the heat storage mesh 503. Detailed Implementation

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present invention.

[0023] Example 1: Please refer to Figures 1-11 An RTO waste gas incineration preheating device includes a heat storage body 101, in which honeycomb openings 102 for ventilation are uniformly arranged. The heat storage plate 201 has a second mounting plate 202 on its side and flow ports 203 are evenly distributed in the heat storage plate 201. A heat storage mesh 503 is disposed inside the frame of the supporting frame 501, and a third mounting plate 502 is disposed on the outside of the supporting frame 501. The heat storage body 101, the heat storage plate 201, and the heat storage mesh 503 form a heat storage bed, which is used to preheat the gas. The heat storage plate 201 is located above the heat storage body 101, and the heat storage mesh 503 is located above the heat storage plate 201.

[0024] This design for a heat storage bed used for preheating organic gases comprises heat storage bodies 101, heat storage plates 201, and heat storage mesh 503. The bottom layer consists of multiple heat storage bodies 101 placed on a support frame 103. Incoming gas is preheated through the heat storage bodies 101, passing through honeycomb openings 102 within them before reaching the second layer, which is composed of heat storage plates 201. The heat storage plates 201 are configured with openings corresponding to the honeycomb openings 102. 2. A corresponding flow port 203 is provided, and a connecting pipe 401 and a tapered bottom pipe 402 are provided at the bottom of the flow port 203 to provide a filtering effect for the gas, so as to prevent too many impurities from entering the combustion chamber. On the other hand, this solution also provides a first baffle 301 and a second baffle 303 at the top of the flow port 203 to provide a turbulence effect for the gas, that is, to disrupt the airflow, which has a positive effect on improving its preheating adequacy. Finally, it is preheated again through the heat storage mesh 503.

[0025] According to the appendix Figure 1-2 As shown, in this scheme, a heat storage bed consists of three layers: heat storage body 101, heat storage plate 201, and heat storage mesh 503. In order to further improve the preheating effect, multiple heat storage beds can be set in one heat storage chamber to improve the adequacy of its gas preheating treatment.

[0026] After the support frame 103 is installed, the heat storage body 101 is placed in the corresponding placement cavity 105 on the support frame 103; then the heat storage plate 201 is installed, and finally the heat storage mesh 503 is installed. The first heat storage bed is then installed. Then, another heat storage bed is installed in the same order.

[0027] According to the appendix Figure 3-6 As shown, the heat storage plate 201 in this solution is supported by a support frame 103. A first mounting plate 104 is fixedly installed on the side of the support frame 103 for mounting and fixing the support frame 103. Placement cavities 105 are evenly arranged in the support frame 103, and a limiting support frame 106 is fixedly installed on the inner wall of the bottom cavity opening of the placement cavity 105. The limiting support frame 106 is used to support the heat storage body 101; one heat storage body 101 is installed in one placement cavity 105.

[0028] For the first layer of installation, namely the installation and use of the heat storage body 101, the support frame 103 is first fixed in the combustion chamber, and then the heat storage bodies 101 are placed one by one in the placement cavity 105 on the support frame 103. During this process, the heat storage bodies 101 are supported by the limiting support frame 106. After all the heat storage bodies 101 are placed, the installation of the heat storage bodies 101 is completed.

[0029] The gas introduced first passes through the heat storage body 101 for heating, and then flows through the honeycomb openings 102 in the heat storage body 101 before entering the second layer of the heat storage bed.

[0030] Therefore, according to the appendix Figure 7-10 As shown, the second layer is composed of a heat storage plate 201, and flow ports 203 are evenly arranged in the heat storage plate 201. The flow ports 203 correspond to the positions of the honeycomb ports 102 in the heat storage body 101 and are arranged in the same number of groups. That is, the gas flowing out of the honeycomb ports 102 in the heat storage body 101 is heated again by the heat storage plate 201. In order to ensure the flow of gas, this solution also provides flow ports 203 in the heat storage plate 201.

[0031] The flow port 203 is aligned with the honeycomb opening 102 in the heat storage body 101, that is, the flow port 203 is directly above the honeycomb opening 102, the purpose of which is to improve the smoothness of gas flow.

[0032] To prevent excessive impurities in the gas from entering the combustion chamber, [the following measures are taken]: Figure 9-10As shown, this solution has a corresponding filter structure at the bottom slot of the flow port 203, which is a connecting pipe 401 with an auxiliary mesh 403 and a tapered bottom pipe 402.

[0033] In this design, a connecting pipe 401 is fixedly installed at the bottom slot of the flow port 203 in the heat storage plate 201. A tapered bottom pipe 402 is installed at the bottom of the connecting pipe 401. Auxiliary mesh 403 is evenly arranged in both the tapered bottom pipe 402 and the connecting pipe 401. This auxiliary mesh 403 serves two purposes: gas flow and filtration of impurities in the gas. The number of tapered bottom pipes 402 and connecting pipes 401 is the same as the number of flow ports 203, meaning that one tapered bottom pipe 402 and one connecting pipe 401 are installed at the bottom of each flow port 203. Gas flows from the heat storage body 1... The gas flowing out of the honeycomb opening 102 in section 01 will then enter the space between the heat storage plate 201 and the heat storage body 101, and then enter the flow port 203 through the auxiliary mesh 403 on both the connecting pipe 401 and the conical bottom pipe 402. It should be noted that the gas flowing in from the honeycomb opening 102 has a slow flow effect between the heat storage plate 201 and the heat storage body 101. That is, the gas fills the space between the heat storage plate 201 and the heat storage body 101. During this process, the gas is provided with a brief retention effect, which increases the gas heating time and has a positive effect on improving its preheating adequacy.

[0034] Similarly, in order to better improve the preheating effect of the gas, from the attached Figure 7-8 As shown, this solution also provides a flow-disrupting structure at the top slot of the flow port 203, namely the first flow-disrupting plate 301 and the second flow-disrupting plate 303.

[0035] A first baffle plate 301 is symmetrically fixedly arranged at the top edge of the slot of the flow port 203 in the heat storage plate 201; a first arc-shaped guide plate 302 is arranged at the top of the first baffle plate 301; the first baffle plate 301 is also set as an arc-shaped plate, and the bottom end of the first baffle plate 301 is fixedly connected around the slot of the flow port 203; that is, the gas flowing out of the flow port 203 is guided by the symmetrically arranged first baffle plate 301 and the first arc-shaped guide plate 302 at its top, and the symmetrically arranged first arc-shaped guide plate 302 guides the gas to each other, thereby making the airflow have a collision effect, making the airflow dispersed and disturbed, and thus making the airflow have a collision and mixing effect, so that the heated gas and the cooling powder have a transfer effect, which has a positive effect on improving the preheating of the gas.

[0036] To further improve the preheating efficiency, this solution includes a second baffle 303, which is symmetrically fixed at the top edge of the slot of the flow port 203 in the heat storage plate 201. A second arc-shaped guide plate 304 is fixedly fixed at the top of the second baffle 303. The second baffle 303 is also arc-shaped, and its bottom end is fixedly connected around the slot of the flow port 203. The height of the second baffle 303 is higher than that of the first baffle 301. Two sets of the second baffle 303 and the first baffle 301 are symmetrically arranged. Similarly, when the airflow passes through the second baffle 303 and the second arc-shaped guide plate 304, there will be a collision effect, which will disperse and disturb the airflow.

[0037] In this process, regarding the use of the first spoiler 301 and the second spoiler 303, on the one hand, the height of the second spoiler 303 is higher than that of the first spoiler 301. That is, when the airflow passes through the first spoiler 301 and causes collision turbulence, it also causes collision turbulence again when passing through the second spoiler 303. In other words, the airflow flowing out of the flow port 203 will undergo two collision turbulence operations under the action of the first spoiler 301 and the second spoiler 303.

[0038] Furthermore, from the appendix Figure 8 As shown, there are two sets of the first spoiler 301 and two sets of the second spoiler 303, and the first spoiler 301 and the second spoiler 303 are arranged alternately to improve the effect of airflow disturbance.

[0039] Combined with the appendix Figure 1-2 and appendix Figure 11 As shown, the gas flowing out of the flow port 203 is turbulent after being turbulent by the combined use of the first baffle 301 and the second baffle 303, and then heated by the heat storage mesh 503. It can also be seen that the first baffle 301 and the second baffle 303 set at the top slot of the flow port 203 provide turbulence to the gas. On the one hand, they make the gas have a collision and mixing effect, that is, to avoid local gas temperature differences, so that the preheating of the airflow is more uniform and sufficient; on the other hand, the gas after being turbulent by the first baffle 301 and the second baffle 303 can better contact the heat storage mesh 503, thereby improving the preheating effect.

[0040] Similarly, if multiple regenerative heat exchange beds are required to provide preheating treatment, the gas heated by the first set of regenerative heat exchange beds is then heated by the second set of regenerative heat exchange beds before finally entering the combustion chamber for incineration and purification.

[0041] Combined with the appendix to this plan Figure 1-11As shown, in the preheating process of organic gas, the organic gas first undergoes heating treatment through the first layer of heat storage body 101. That is, the gas enters from the bottom end of the honeycomb opening 102 in the heat storage body 101 and then flows out from the top end of the honeycomb opening 102. Some of the gas flowing out from the top end of the honeycomb opening 102 directly enters the flow port 203 through the auxiliary mesh 403 on the connecting pipe 401 and the conical bottom pipe 402. Some of the gas will also temporarily remain in the space between the heat storage plate 201 and the heat storage body 101. At this time, the gas remaining in the space is heated under the action of the heat storage body 101 and the heat storage plate 201. That is, the preheating treatment is improved by extending the gas flow time in the heat storage structure. At the same time, the auxiliary mesh 403 provided on both the connecting pipe 401 and the conical bottom pipe 402 not only provides a flow effect for the gas, but also provides a filtering effect for impurities in the gas to prevent too much gas from entering the combustion chamber.

[0042] The gas temporarily trapped between the heat storage body 101 and the heat storage plate 201 enters the flow port 203 through the auxiliary mesh 403 on both the connecting pipe 401 and the conical bottom pipe 402. At this point, the gas flows out from the top of the flow port 203 after passing through the second layer of the heat storage plate 201. Then, it passes through the first baffle 301 and the second baffle 303 set at the top slot of the flow port 203, which provide a double collision and turbulence effect for the gas. On the one hand, it avoids local gas temperature differences. That is, when the gas is heated by the heat storage body 101, if different areas of the gas have different heat, that is, different areas of the gas are heated differently, resulting in uneven and insufficient preheating. Therefore, the purpose is to make the preheating of the airflow more uniform and sufficient. On the other hand, the gas after being turbulent by the first baffle 301 and the second baffle 303 can better contact the heat storage mesh 503. That is, the gas is heated again by the heat storage mesh 503, so as to ensure its preheating effect.

[0043] When the gas purified from the combustion chamber is subsequently discharged, the airflow also passes through the heat storage bed, that is, through the heat storage mesh 503, the heat storage plate 201, and the heat storage body 101 in sequence. At this time, the heat in the gas discharged from the combustion chamber will heat the heat storage mesh 503, the heat storage plate 201, and the heat storage body 101 in preparation for the next gas preheating process. After passing through the heat storage mesh 503, the gas passes through the flow port 203 on the heat storage plate 201. At this time, the gas enters from the top of the flow port 203, and then... Then, the gas is ejected from the bottom of the flow port 203, that is, from the auxiliary mesh 403 on the connecting pipe 401 and the conical bottom pipe 402. This process also has a cleaning effect on the impurities adhering to the connecting pipe 401 and the conical bottom pipe 402. Similarly, during the gas discharge process, the impurities adhering to the heat storage mesh 503, the heat storage plate 201, and the heat storage body 101 are also cleaned. Finally, the gas flows out from the honeycomb opening 102 in the heat storage body 101.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An RTO waste gas incineration preheating device, characterized in that: It includes a heat storage body (101), in which honeycomb openings (102) for ventilation are uniformly arranged. A heat storage plate (201) is provided with a second mounting plate (202) on its side, and flow ports (203) are also uniformly provided in the heat storage plate (201). A heat storage mesh (503) is provided inside the frame of the supporting frame (501), and a third mounting plate (502) is provided on the outside of the supporting frame (501). The heat storage body (101), the heat storage plate (201), and the heat storage mesh (503) form a heat storage bed, which is used to preheat the gas. The heat storage plate (201) is located above the heat storage body (101), and the heat storage mesh (503) is located above the heat storage plate (201).

2. The RTO waste gas incineration preheating device according to claim 1, characterized in that: The heat storage plate (201) is supported by a support frame (103); A first mounting plate (104) is fixedly installed on the side of the support frame (103) for the installation and fixing of the support frame (103). Placement cavities (105) are evenly arranged in the support frame (103), and a limit support frame (106) is fixedly installed on the inner wall of the bottom cavity opening of the placement cavity (105).

3. The RTO waste gas incineration preheating device according to claim 2, characterized in that: The limiting support frame (106) is used to support the heat storage body (101); A heat storage body (101) is installed in a placement cavity (105).

4. The RTO waste gas incineration preheating device according to claim 1, characterized in that: The heat storage plate (201) is uniformly provided with flow ports (203), and the flow ports (203) are located in the same position as the honeycomb ports (102) in the heat storage body (101) and are provided in the same number of groups.

5. The RTO waste gas incineration preheating device according to claim 4, characterized in that: A first baffle plate (301) is symmetrically fixed at the top slot side of the flow port (203) in the heat storage plate (201). A first arc-shaped guide plate (302) is provided at the top of the first spoiler (301).

6. The RTO waste gas incineration preheating device according to claim 5, characterized in that: The first spoiler (301) is also configured as an arc-shaped plate, and the bottom end of the first spoiler (301) is fixedly connected to the slot of the flow port (203).

7. The RTO waste gas incineration preheating device according to claim 4, characterized in that: A second baffle plate (303) is symmetrically fixed at the top slot side of the flow port (203) in the heat storage plate (201). A second arc-shaped guide plate (304) is fixedly installed at the top of the second spoiler (303). The second spoiler (303) is also set to be arc-shaped, and the bottom end of the second spoiler (303) is also fixedly connected around the slot of the flow port (203).

8. The RTO waste gas incineration preheating device according to claim 7, characterized in that: The height of the second spoiler (303) is higher than that of the first spoiler (301); The second spoiler (303) and the first spoiler (301) are each symmetrically arranged in two sets.

9. The RTO waste gas incineration preheating device according to claim 4, characterized in that: A connecting pipe (401) is fixedly installed at the bottom slot of the flow port (203) in the heat storage plate (201), and a tapered bottom pipe (402) is provided at the bottom end of the connecting pipe (401). Auxiliary mesh (403) is uniformly provided in both the tapered bottom tube (402) and the connecting pipe (401). The auxiliary mesh (403) is used for gas flow on the one hand, and provides a filtering effect for impurities in the gas on the other hand. The tapered bottom tube (402) and the connecting fitting (401) are set in the same number as the flow port (203), that is, a tapered bottom tube (402) and a connecting fitting (401) are set at the bottom of a flow port (203).

10. The RTO waste gas incineration preheating device according to claim 8, characterized in that: The second spoiler (303) and the first spoiler (301) together provide a turbulence effect on the gas flowing out of the flow port (203).

Images