Combustion nozzle for mixing various waste gases

Abstract

The utility model provides a combustion nozzle for mixing various waste gases, and belongs to the field of industrial waste gas emission. And the problem of insufficient combustion caused by non-uniform mixing of various waste gases is solved. The multi-hole nozzle comprises a nozzle shell, a multi-hole outer pipe, a multi-hole inner pipe, a fan blade pipe, a vacuum generator and a combustion air gun. An air inlet is formed in the side wall of the nozzle shell; a porous outer pipe and a porous inner pipe are arranged in the nozzle shell, the porous outer pipe is arranged on the outer side of the porous inner pipe, and the top of the porous outer pipe and the top of the porous inner pipe are both connected with the shell cover plate; a spraying opening is formed in the bottom of the nozzle shell; the nozzle shell is connected with a furnace end through a spraying opening, and a negative pressure chamber and a waste gas mixing chamber are sequentially arranged in the furnace end in the gas circulation direction. An air gun connector is arranged outside the furnace end; a fan blade pipe is arranged on the outer side of the porous inner pipe, and a plurality of inclined partition plates are arranged in the fan blade pipe in the circumferential direction at equal intervals. The waste gas mixing device is mainly used for fully mixing various waste gases.

Description

Technical Field

[0001] This utility model belongs to the field of industrial waste gas emission technology, and in particular relates to a combustion nozzle for mixing multiple waste gases. Background Technology

[0002] Industrial waste gas mainly originates from fuels, chemical reactions, chemical volatilization, and biological processes. Its complex composition contains harmful substances such as sulfur dioxide, nitrogen oxides, and volatile organic compounds, which are detrimental to the environment and human health. Direct emission of these gases can severely pollute the atmosphere, water bodies, and soil, disrupting the ecological balance and even threatening human health. Traditional waste gas treatment equipment cannot achieve uniform mixing of waste gases due to differences in pressure and temperature, leading to incomplete combustion. This incomplete combustion generates secondary pollutants. Low-pressure waste gases are difficult to stably deliver to the combustion system due to a lack of effective air intake technology, creating treatment blind spots. Furthermore, high-temperature combustion relies on excessive fuel gas, resulting in high energy consumption and increased nitrogen oxide generation, exacerbating environmental pollution. Existing combustion nozzles often employ a single-channel structure, failing to achieve multi-stage mixing and pressure regulation of waste gases, thus failing to meet the purification needs of complex industrial scenarios. Utility Model Content

[0003] In view of this, the present invention aims to provide a combustion nozzle for mixing multiple exhaust gases, so as to solve the problem of incomplete combustion caused by uneven mixing of multiple exhaust gases.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a combustion nozzle for mixing multiple waste gases, comprising a nozzle housing, a porous outer tube, a porous inner tube, a fan blade tube, a vacuum generator, and a combustion gun;

[0005] An air inlet is provided on the side wall of the nozzle housing;

[0006] The nozzle housing is provided with a housing cover plate at the top. The nozzle housing is provided with a porous outer tube and a porous inner tube inside. The porous outer tube is located outside the porous inner tube. The tops of the porous outer tube and the porous inner tube are connected to the housing cover plate.

[0007] The nozzle housing is provided with an outlet at the bottom;

[0008] The nozzle housing is connected to the furnace head through the nozzle outlet, and a negative pressure chamber and a waste gas mixing chamber are arranged sequentially inside the furnace head along the gas flow direction.

[0009] The negative pressure chamber includes a cylindrical cavity and a variable diameter cavity. The diameter of the cylindrical cavity is equal to the diameter of the nozzle. The top of the cylindrical cavity is connected to the nozzle, and the bottom is connected to the exhaust gas mixing chamber through the variable diameter cavity. The diameter of the variable diameter cavity gradually increases from the cylindrical cavity to the exhaust gas mixing chamber.

[0010] The burner head is equipped with an air gun interface on its exterior.

[0011] The bottom of the porous inner tube is on the same horizontal line as the nozzle. A fan blade tube is provided on the outside of the porous inner tube. Multiple oblique baffles are arranged at equal intervals along the circumference inside the fan blade tube.

[0012] The vacuum generator and combustion gas gun penetrate the housing cover and extend through the interior of the porous inner tube into the cylindrical cavity of the negative pressure chamber.

[0013] Furthermore, the housing cover plate is provided with a pipe port cover plate, and the pipe port cover plate is provided with a plurality of pipe ports, through which the vacuum generator and the combustion gas gun extend into the negative pressure chamber.

[0014] Furthermore, an inner tube baffle plate is provided on the outer side of the porous inner tube, and the fan blade tube is located on the outer side of the inner tube baffle plate. An inner tube baffle plate adjusting rod is provided on the inner tube baffle plate, and the top of the inner tube baffle plate adjusting rod is screwed to the shell cover plate.

[0015] Furthermore, a fan blade tube adjusting rod is provided on the fan blade tube, and the top of the fan blade tube adjusting rod is screwed to the housing cover plate. Adjusting rod protective covers are respectively provided on the top of the inner tube baffle plate adjusting rod and the fan blade tube adjusting rod.

[0016] Furthermore, there are four combustion gas guns, which are connected to the fuel gas chamber via connecting pipes.

[0017] Furthermore, there are several air gun ports, and all of the air gun ports are inclined downwards.

[0018] Furthermore, a waste acid gun is provided on the side wall of the furnace head, the waste acid gun is connected to the inside of the furnace head, and the waste acid gun is inclined downward.

[0019] Furthermore, the burner head is equipped with a flame detector and a continuous lamp, both of which are connected to the interior of the burner head.

[0020] Furthermore, a condensate drain valve and a sampling manual valve are installed at the bottom of the waste gas mixing chamber.

[0021] Furthermore, a continuous light is installed on the burner head, and the continuous light is connected to the inside of the burner head.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. The vacuum generator of this utility model extends directly into the negative pressure chamber, creating a stable negative pressure environment. This negative pressure environment draws in various waste gases from the waste gas mixing chamber. Even low-pressure waste gases can be drawn up by the negative pressure and fully mixed with other waste gases, preventing them from escaping. Combined with the variable diameter chamber design, it avoids uneven mixing caused by pressure differences in waste gases, thus achieving mixing of various gases in the waste gas mixing chamber. At the same time, the inclined baffles inside the fan blade tube transform the combustion-supporting airflow into a rotating airflow, further agitating the various waste gases in the waste gas mixing chamber and improving the mixing effect. This solves the problem of uneven waste gas mixing caused by pressure differences in traditional nozzles, which affects combustion.

[0024] 2. This utility model uses the porous structure of the porous outer tube to initially reduce the pressure of the positive pressure combustion air entering from the air inlet. A portion of the positive pressure combustion air passes through the fan blade tube, where it rotates and flows downward, allowing the exhaust gas in the exhaust gas mixing chamber to be fully mixed. Another portion of the positive pressure combustion air is decelerated through the porous inner tube, and the air volume of the positive pressure combustion air is adjusted by the inner tube baffle plate and the inner tube baffle plate adjustment rod, thereby adapting to different exhaust gas flow rates and combustion conditions, and avoiding incomplete combustion caused by excessive or insufficient oxygen.

[0025] 3. The combustion gun of this utility model extends into the negative pressure chamber. The oxygen that enters through the air inlet achieves low-temperature combustion in the exhaust gas mixing chamber. The heat loss generated by low-temperature combustion is low, the fuel quality utilization rate is high, and the generation of nitrogen oxides is effectively suppressed. It can achieve a comprehensive effect of high efficiency and environmental protection during the combustion process, thereby reducing secondary pollution.

[0026] 4. This utility model is equipped with multiple air gun ports on the furnace head and waste acid guns on the side wall, which can treat a variety of waste gases and waste acids, thereby improving the compatibility and operational stability of the device. It is also applicable to complex waste gas treatment scenarios. Attached Figure Description

[0027] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0028] Figure 1 This is a cross-sectional structural diagram of a combustion nozzle and furnace head for mixing multiple waste gases, as described in this utility model.

[0029] Figure 2 This is a schematic diagram of the axial side structure of a combustion nozzle and furnace head for mixing multiple waste gases, as described in this utility model.

[0030] Figure 3This is an exploded view of a combustion nozzle for mixing multiple waste gases according to the present invention.

[0031] Figure 4 This is a cross-sectional structural diagram of a combustion nozzle for mixing multiple waste gases according to the present invention.

[0032] Figure 5 This is a side view of a combustion nozzle for mixing multiple waste gases according to the present invention.

[0033] Figure 6 This is a front structural diagram of the housing of a combustion nozzle for mixing multiple exhaust gases according to the present invention.

[0034] Figure 7 This is a cross-sectional structural diagram of the housing of a combustion nozzle for mixing multiple waste gases according to the present invention.

[0035] Figure 8 This is a side view of the housing of a combustion nozzle for mixing multiple exhaust gases according to the present invention.

[0036] Figure 9 This is a schematic diagram of the axial structure of the fan blade tube of a combustion nozzle for mixing multiple exhaust gases according to the present invention.

[0037] Figure 10 This is a front structural diagram of the fan blade tube of a combustion nozzle for mixing multiple exhaust gases according to the present invention.

[0038] Figure 11 This is a top view schematic diagram of the fan blade tube of a combustion nozzle for mixing multiple exhaust gases according to the present invention.

[0039] Figure 12 This is a partial front view of a combustion nozzle for mixing multiple waste gases according to the present invention.

[0040] Figure 13 This is a schematic diagram of a partial side view of a combustion nozzle for mixing multiple waste gases according to the present invention.

[0041] Figure 14 This is a partial cross-sectional structural diagram of a combustion nozzle for mixing multiple waste gases according to the present invention.

[0042] In the picture:

[0043] 1. Nozzle housing; 2. Air inlet; 3. Nozzle outlet; 4. Perforated outer tube; 5. Perforated inner tube; 6. Inner tube baffle plate; 7. Inner tube baffle plate adjusting rod; 8. Fan blade tube; 9. Fan blade tube adjusting rod; 10. Housing cover plate; 11. Connecting pipe cover plate; 12. Adjusting rod protective cover; 13. Vacuum generator; 14. Combustion gas pipe; 15. Furnace head; 16. Exhaust gas mixing chamber; 17. Gas gun interface; 18. Connecting pipe; 19. Fuel gas collection chamber; 20. Flame detector; 21. Waste acid gun; 22. Constant light. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present utility model can be combined with each other, and the described embodiments are only some embodiments of the present utility model, not all embodiments.

[0045] Detailed implementation method: See Figure 1-14 This embodiment describes a combustion nozzle for mixing multiple exhaust gases, comprising a nozzle housing 1, a porous outer tube 4, a porous inner tube 5, a fan blade tube 8, a vacuum generator 13, and a combustion gun 14.

[0046] The nozzle housing 1 is provided with an air inlet 2 on its side wall, and the air inlet 2 is used to introduce positive pressure combustion air into the nozzle housing 1.

[0047] The nozzle housing 1 is provided with a housing cover plate 10 on the top. The nozzle housing 1 is provided with a porous outer tube 4 and a porous inner tube 5 inside. The porous outer tube 4 is located outside the porous inner tube 5. The porous outer tube 4 is used to reduce the pressure of the positive pressure combustion air. The porous inner tube 5 is used to introduce a part of the positive pressure combustion air into the exhaust gas mixing chamber 16. The tops of the porous outer tube 4 and the porous inner tube 5 are connected to the housing cover plate 10. The housing cover plate 10 is used to close the top of the nozzle housing 1 and to fix the porous outer tube 4 and the porous inner tube 5.

[0048] The nozzle housing 1 is provided with an outlet 3 at the bottom, which is used to introduce the gas inside the nozzle housing 1 into the furnace head 15.

[0049] The nozzle housing 1 is connected to the burner head 15 through the nozzle outlet 3. The burner head 15 is provided with a negative pressure chamber 23 and a waste gas mixing chamber 16 in sequence along the gas flow direction. The burner head 15 is made of high temperature resistant and corrosion resistant materials, so that the waste gas can be fully mixed and burned in the waste gas mixing chamber 16 of the burner head 15.

[0050] The negative pressure chamber 23 includes a cylindrical cavity and a variable diameter cavity. The diameter of the cylindrical cavity is equal to the diameter of the nozzle 3. The top of the cylindrical cavity is connected to the nozzle 3, and the bottom is connected to the exhaust gas mixing chamber 16 through the variable diameter cavity. The cylindrical cavity is under negative pressure, which can draw in the exhaust gas in the exhaust gas mixing chamber 16 to achieve mixing. Low-pressure exhaust gas can also be drawn in by the negative pressure chamber 23 to prevent low-pressure exhaust gas from escaping. The diameter of the variable diameter cavity gradually increases from the cylindrical cavity to the exhaust gas mixing chamber 16, forming a conical structure.

[0051] The vacuum generator 13 and the combustion gas gun 14 penetrate the housing cover plate 10 and extend through the interior of the porous inner tube 5 into the cylindrical cavity of the negative pressure chamber 23. The vacuum generator 13 injects compressed gas into the cylindrical cavity of the negative pressure chamber 23, creating a negative pressure zone inside the cylindrical cavity. The variable diameter cavity gradually expands in diameter, thereby gradually restoring the negative pressure to positive pressure. Although the pressure inside the variable diameter cavity can be restored, the expansion structure of the variable diameter cavity still transmits the negative pressure effect of the cylindrical cavity to the inlet of the exhaust gas mixing chamber 16, maintaining the continuous suction of exhaust gas in the mixing chamber, thereby achieving the intake suction of exhaust gas in the exhaust gas mixing chamber 16.

[0052] The burner head 15 is provided with an air gun port 17 on the outside. Exhaust gases from different sources or at different pressures are introduced into the burner head 15 through the air gun port 17, where they are mixed and burned in the exhaust gas mixing chamber 16.

[0053] The bottom of the porous inner tube 5 is on the same horizontal line as the nozzle 3, ensuring that the positive pressure combustion air enters the burner head 15 directly. The outer side of the porous inner tube 5 is provided with a fan blade tube 8. Multiple inclined baffles are arranged at equal intervals along the circumference inside the fan blade tube 8. The positive pressure combustion air is forced to turn after passing through the inclined baffles, thereby generating a swirling flow. The positive pressure combustion air generating the swirling flow mixes the waste gas in the waste gas mixing chamber 16.

[0054] The working principle of this utility model is as follows:

[0055] Compressed gas enters the cylindrical cavity of the negative pressure chamber 23 through the vacuum generator 13, creating a negative pressure within the cavity. Simultaneously, positive pressure combustion air enters the nozzle housing 1 from the air inlet 2, undergoes pressure reduction through the porous outer tube 4, and then enters the porous inner tube 5 to provide oxygen for subsequent combustion, while another portion enters the fan blade tube 8. This fan blade tube 8 is converted into a rotating airflow by an inclined baffle plate, which then guides the exhaust gas through the air gun interface 17 into the exhaust gas mixing chamber 16. The negative pressure environment within the negative pressure chamber 23 draws in the gas within the exhaust gas mixing chamber 16, thus mixing the gases within the chamber. The rotating airflow further agitates the gases within the chamber, further mixing them and thus solving the problem of uneven exhaust gas mixing in existing nozzles affecting subsequent combustion.

[0056] The housing cover plate 10 is provided with a pipe port cover plate 11, and the pipe port cover plate 11 is provided with a plurality of pipe ports. The vacuum generator 13 and the combustion gun 14 extend into the negative pressure chamber 23 through the corresponding pipe ports. The pipe ports are used to provide installation interfaces for the vacuum generator 13 and the combustion gun 14. The combustion gun 14 is used to provide the fuel required for combustion into the exhaust gas mixing chamber 16.

[0057] An inner tube baffle plate 6 is also provided on the outside of the porous inner tube 5. The fan blade tube 8 is located on the outside of the inner tube baffle plate 6. An inner tube baffle plate adjusting rod 7 is provided on the inner tube baffle plate 6. The top of the inner tube baffle plate adjusting rod 7 is screwed to the shell cover plate 10. By adjusting the inner tube baffle plate adjusting rod 7 up and down, the opening area of ​​the inner tube baffle plate 6 covering the porous inner tube 5 is changed, thereby changing the gas flow rate entering the porous inner tube 5.

[0058] A fan blade tube adjusting rod 9 is provided on the fan blade tube 8. The top of the fan blade tube adjusting rod 9 is screwed to the housing cover plate 10. By rotating the adjusting rod 9, the fan blade tube 8 is driven to move up and down axially, changing the relative position of the fan blade tube 8 with the porous inner tube 5 and the inner tube baffle plate 6. When the fan blade tube 8 moves upward, the cyclone intensity is small, and when the fan blade tube 8 moves downward, the cyclone intensity is large. The top of the inner tube baffle plate adjusting rod 7 and the fan blade tube adjusting rod 9 are respectively provided with adjusting rod protective covers 12 to prevent foreign objects from entering the inner tube baffle plate adjusting rod 7 and the threaded connection between the fan blade tube adjusting rod 9 and the housing cover plate 10, avoiding thread jamming or corrosion, and ensuring the reliability of the adjustment function.

[0059] There are four combustion gas guns 14. The four combustion gas guns 14 are connected to the fuel gas chamber 19 through the pipe 18. Each combustion gas gun 14 is connected to the fuel gas chamber 19 through an independent pipe 18, forming a branch fuel delivery channel. The fuel gas chamber 19 is used to store multiple fuels. The four fuel gas guns 14 inject different types of fuel into the exhaust gas mixing chamber 16 to meet the combustion requirements of complex exhaust gas composition.

[0060] There are several air gun ports 17, all of which are inclined downwards. Exhaust gases of different pressures are depressurized through air gun ports 17 of different sizes and enter the exhaust gas mixing chamber 16. The downwardly inclined air gun ports 17 prevent liquid or particulate matter from accumulating.

[0061] The side wall of the furnace head 15 is provided with a waste acid gun 21, which is connected to the inside of the furnace head 15. The waste acid gun 21 is inclined downwards, and external acidic waste gas or waste liquid is introduced into the waste gas mixing chamber 16 inside the furnace head 15 through the waste acid gun 21 to participate in mixing and combustion. The downward inclined structure avoids the accumulation of acidic substances in the pipe and reduces the risk of crystallization or corrosion.

[0062] The burner head 15 is equipped with a flame detector 20 and a continuous lamp 22. Both the flame detector 20 and the continuous lamp 22 are connected to the inside of the burner head 15. The flame detector 20 is used to monitor the combustion status inside the burner head 15 in real time, and the continuous lamp 22 is used to provide a stable ignition source to ensure that the main combustion flame can be reignited immediately if it is accidentally extinguished, thus maintaining the continuity of combustion.

[0063] The bottom of the exhaust gas mixing chamber 16 is equipped with a condensate drain valve and a sampling hand valve. The condensate drain valve is used to periodically discharge the condensate or unburned particulate matter deposited in the mixing chamber to prevent the accumulated liquid from corroding the equipment or blocking the airflow channel. The sampling hand valve is used to extract gas samples from inside the mixing chamber for laboratory analysis of the composition of the gas after combustion.

[0064] The burner head 15 is equipped with a continuous lamp 22, which is connected to the inside of the burner head 15 and is used to provide a stable ignition source for combustion.

[0065] A method of using a combustion nozzle for mixing multiple exhaust gases includes the following steps:

[0066] S1: Compressed gas is introduced into the vacuum generator 13. The compressed gas is ejected through the nozzle of the vacuum generator 13 and enters the cylindrical cavity of the negative pressure chamber 23. According to Bernoulli's principle, a negative pressure zone is formed in the cylindrical cavity. The negative pressure zone in the cylindrical cavity can draw gas from the exhaust gas mixing chamber 16. The variable diameter cavity gradually expands its diameter, thereby gradually restoring the negative pressure to a positive pressure. Although the pressure in the variable diameter cavity can be restored, the expansion structure of the variable diameter cavity still transmits the negative pressure effect of the cylindrical cavity to the inlet of the exhaust gas mixing chamber 16, maintaining the continuous drawing of gas from the exhaust gas mixing chamber 16. At the same time, positive pressure combustion air is introduced into the air inlet 2. After the combustion air is depressurized through the porous outer pipe 4, a portion of the positive pressure combustion air enters the porous inner pipe 5, and the other portion enters the fan blade pipe 8. The inclined baffles inside the fan blade pipe 8 generate a rotating airflow, which can mix the exhaust gas in the exhaust gas mixing chamber 16, further mixing the exhaust gas. The vacuum generator 13 introduces compressed gas to form a negative pressure zone to draw the gas in the exhaust gas mixing chamber. The synergistic effect of this and the rotating airflow generated by the fan blade pipe 8 achieves full mixing of the exhaust gas in the exhaust gas mixing chamber 16, which is convenient for subsequent low-temperature combustion and avoids the problem of uneven mixing of exhaust gas affecting the combustion effect.

[0067] S2: Exhaust gases at different pressures are injected into the exhaust gas mixing chamber 16 through air gun ports 17 of different sizes. Waste acid is injected into the exhaust gas mixing chamber 16 through waste acid gun 21. The negative pressure environment of the negative pressure chamber 23 draws in the various exhaust gases entering the exhaust gas mixing chamber 16. At the same time, the rotating airflow generated by the fan blade tube 8 mixes the exhaust gases in the exhaust gas mixing chamber 16. The positive pressure combustion gas entering the porous inner tube 5 is changed by adjusting the inner tube baffle plate adjustment rod 7. The intensity of the rotating airflow is adjusted by adjusting the fan blade tube adjustment rod 9, so that the exhaust gases in the exhaust gas mixing chamber 16 can be fully mixed.

[0068] S3: Fuel is obtained from the fuel tank 19 through the combustion gun 14 and the pipe 18, and the fuel is injected into the exhaust gas mixing chamber 16. The continuous lamp 22 is turned on to provide a basic ignition source, thereby performing low-temperature combustion on the exhaust gas that is fully combusted in the exhaust gas mixing chamber 16. Low-temperature combustion can reduce the content of nitrogen oxide components, thereby reducing environmental pollution.

[0069] The specific embodiments of this utility model disclosed above are merely illustrative of the present utility model. These specific embodiments do not exhaustively describe all details, nor do they limit the utility model to only the described embodiments. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it.

Claims

1. A combustion nozzle for mixing multiple exhaust gases, characterized in that: It includes a nozzle housing (1), a porous outer tube (4), a porous inner tube (5), a fan blade tube (8), a vacuum generator (13), and a combustion air gun (14); The nozzle housing (1) has an air inlet (2) on its side wall; The nozzle housing (1) is provided with a housing cover plate (10) on the top. The nozzle housing (1) is provided with a porous outer tube (4) and a porous inner tube (5) inside. The porous outer tube (4) is located outside the porous inner tube (5). The tops of the porous outer tube (4) and the porous inner tube (5) are connected to the housing cover plate (10). The nozzle housing (1) is provided with an outlet (3) at its bottom; The nozzle housing (1) is connected to the furnace head (15) through the nozzle outlet (3). The furnace head (15) is provided with a negative pressure chamber (23) and a waste gas mixing chamber (16) in sequence along the gas flow direction. The negative pressure chamber (23) includes a cylindrical cavity and a variable diameter cavity. The diameter of the cylindrical cavity is equal to the diameter of the nozzle (3). The top of the cylindrical cavity is connected to the nozzle (3), and the bottom is connected to the exhaust gas mixing chamber (16) through the variable diameter cavity. The diameter of the variable diameter cavity gradually increases from the cylindrical cavity to the exhaust gas mixing chamber (16). The vacuum generator (13) and the combustion gas gun (14) penetrate the housing cover plate (10) and extend through the interior of the porous inner tube (5) into the cylindrical cavity of the negative pressure chamber (23); The burner head (15) is provided with an air gun port (17) on the outside; The bottom of the porous inner tube (5) is on the same horizontal line as the nozzle (3). A fan blade tube (8) is provided on the outside of the porous inner tube (5). Multiple oblique baffles are arranged at equal intervals along the circumferential direction inside the fan blade tube (8).

2. A combustion nozzle for mixing multiple exhaust gases according to claim 1, characterized in that: The housing cover plate (10) is provided with a pipe port cover plate (11), and the pipe port cover plate (11) is provided with a plurality of pipe ports. The vacuum generator (13) and the combustion gas gun (14) extend into the negative pressure chamber (23) through the corresponding pipe ports.

3. A combustion nozzle for mixing multiple exhaust gases according to claim 1, characterized in that: The porous inner tube (5) is also provided with an inner tube baffle plate (6) on the outside. The fan blade tube (8) is located on the outside of the inner tube baffle plate (6). An inner tube baffle plate adjusting rod (7) is provided on the inner tube baffle plate (6). The top of the inner tube baffle plate adjusting rod (7) is screwed to the shell cover plate (10).

4. A combustion nozzle for mixing multiple exhaust gases according to claim 3, characterized in that: The fan blade tube (8) is provided with a fan blade tube adjusting rod (9), the top of which is screwed to the housing cover plate (10). The top of the inner tube baffle plate adjusting rod (7) and the fan blade tube adjusting rod (9) are respectively provided with adjusting rod protective covers (12).

5. A combustion nozzle for mixing multiple exhaust gases according to claim 1, characterized in that: There are four combustion gas guns (14), and the four combustion gas guns (14) are connected to the fuel gas chamber (19) through a pipe (18).

6. A combustion nozzle for mixing multiple exhaust gases according to claim 1, characterized in that: There are several air gun ports (17), and all of the air gun ports (17) are inclined downwards.

7. A combustion nozzle for mixing multiple exhaust gases according to claim 1, characterized in that: The side wall of the furnace head (15) is provided with a waste acid gun (21), which is connected to the inside of the furnace head (15) and is inclined downward.

8. A combustion nozzle for mixing multiple exhaust gases according to claim 1, characterized in that: A flame detector (20) is provided on the burner head (15), and the flame detector (20) is connected to the inside of the burner head (15).

9. A combustion nozzle for mixing multiple exhaust gases according to claim 1, characterized in that: The bottom of the waste gas mixing chamber (16) is equipped with a condensate drain valve and a sampling manual valve.

10. A combustion nozzle for mixing multiple exhaust gases according to claim 1, characterized in that: The burner head (15) is equipped with a continuous lamp (22), which is connected to the inside of the burner head (15).

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