Ultra-low emission combustion equipment for waste gas treatment

Abstract

The invention provides ultra-low emission combustion equipment for waste gas treatment, and relates to the technical field of oil gas tail gas and waste gas treatment, and the ultra-low emission combustion equipment comprises a combustor which is provided with a waste gas inlet and a combustion-supporting air inlet; an air outlet of the combustion-supporting fan is connected to a combustion-supporting gas inlet of the combustor through a combustion-supporting air input pipe; through waste gas pretreatment, the stability of airflow and air pressure of input waste gas is improved, particles and harmful substances in the waste gas are reduced, the stability and combustion efficiency of waste gas combustion equipment during waste gas combustion are improved, and the problem that an effective oil gas tail gas pretreatment process is lacked before waste gas incineration is solved; pollutants such as sulfur dioxide generated in the waste gas combustion treatment process are not easy to reduce, and the purity and quality of the waste gas are not easy to guarantee to provide a more stable and efficient waste gas source for the subsequent treatment process. And the combustion stability and the combustion rate of the waste gas can be influenced due to insufficient mixing of the waste gas, air and combustion-supporting gas.

Description

Technical Field

[0001] This invention relates to the field of oil and gas exhaust gas treatment technology, and in particular to an ultra-low emission combustion device for exhaust gas treatment. Background Technology

[0002] In existing waste gas combustion treatment methods, there is a lack of effective pretreatment processes for oil and gas exhaust gases before incineration. This is not conducive to reducing pollutants such as sulfur dioxide generated during the waste gas combustion process, nor to ensuring the purity and quality of the waste gas to provide a more stable and efficient waste gas source for subsequent treatment processes. Insufficient mixing of waste gas with air and combustion-supporting gases will affect combustion stability and the combustion rate of waste gas. Summary of the Invention

[0003] This invention provides an ultra-low emission combustion device for waste gas treatment, which solves the problems in existing waste gas combustion treatment methods, such as the lack of effective pretreatment processes for oil and gas tail gas before incineration, which is not conducive to reducing pollutants such as sulfur dioxide generated during waste gas combustion treatment, and is not conducive to ensuring the purity and quality of waste gas to provide a more stable and efficient waste gas source for subsequent treatment processes; and insufficient mixing of waste gas with air and combustion-supporting gases, which affects combustion stability and combustion rate of waste gas.

[0004] This invention provides an ultra-low emission combustion device for waste gas treatment, specifically comprising: a burner having a waste gas inlet and a combustion air inlet; a combustion air blower whose outlet is connected to the combustion gas inlet of the burner via a combustion air input pipe; and a waste gas pretreatment unit comprising, in sequence via pipes: a pressure stabilizing tank, a primary filter, a desulfurization tank, and an induced draft fan, wherein the inlet of the induced draft fan is connected to the outlet of the pressure stabilizing tank, and its outlet is connected to the waste gas inlet of the burner via a combustion gas introduction pipe; the burner, from bottom to top, is composed of a gas collecting pipe, a conical mixing chamber, a combustion chamber, and an exhaust pipe, wherein a gas collecting guide inner pipe is fixedly installed inside the gas collecting pipe. The lower edge of the tube wall has eight guide pipe inlets distributed around it, which connect the exhaust gas inlet of the burner to the inside of the gas collecting guide pipe. The upper edge of the tube wall has eight guide pipe outlets distributed around it, which connect the conical mixing chamber to the inside of the gas collecting guide pipe. The conical mixing chamber is equipped with a mixing shaft, and four sets of mixing discs and four sets of exhaust gas mixing racks are fixedly sleeved on the outside of the mixing shaft. The outer edges of the mixing discs and exhaust gas mixing racks are all in contact with the inner wall of the conical mixing chamber. The bottom of the combustion chamber is rotatably connected to the combustion disc through a bearing. The jet pipe is tightly inserted into the oblique injection port of the disc. An igniter is located above the combustion disc.

[0005] Furthermore, the inner tube of the gas collection guide has spiral-shaped guide mixing plates arranged vertically inside, with the edges of the guide mixing plates adhering to the inner wall of the gas collection guide inner tube, and the spiral directions of two adjacent guide mixing plates in the longitudinal direction being opposite.

[0006] Furthermore, the bottom center of the conical mixing chamber is connected to an inner spiral connector via a bracket, and the lower end of the mixing shaft is threaded, with the threaded portion of the lower end of the mixing shaft being spirally connected to the inner spiral connector.

[0007] Furthermore, the mixing disc is formed by connecting an upper air-permeable plate and a lower air-permeable plate through a ring frame. Both the upper and lower air-permeable plates are provided with two sets of rectangular through-holes arranged in a ring. The two sets of rectangular through-holes are the inner ring through-holes and the outer ring through-holes, respectively. An upper through-hole inclined plate is fixedly connected above the rectangular through-holes of the upper air-permeable plate. The upper through-hole inclined plate is inclined, and the orientation of the upper through-hole inclined plate of the outer ring through-holes is opposite to that of the upper through-hole inclined plate of the inner ring through-holes.

[0008] Furthermore, an inclined air-passing plate is fixedly connected above the rectangular opening of the lower air-passing plate, and the orientation of the lower air-passing plate is opposite to that of the upper air-passing plate directly above it.

[0009] Furthermore, the exhaust gas mixing frame is made by welding an inner spiral plate and an outer spiral plate together. The outer spiral plate is located outside the inner spiral plate. Both the inner and outer spiral plates are curled into a spiral shape, and the spiral directions of the inner and outer spiral plates are opposite.

[0010] Furthermore, an internal mixing plate is fixedly connected inside the jet pipe. The internal mixing plate is a spiral plate, and adjacent internal mixing plates have opposite spiral directions. A micro-hole jet head is fixedly connected to the upper end of the jet pipe, and the micro-hole jet head has densely perforated air holes.

[0011] Furthermore, a one-way valve is provided between the microporous jet head and the mixing plate inside the tube, with the outlet of the one-way valve facing the microporous jet head.

[0012] Furthermore, the gas collecting pipe is fixedly connected to an auxiliary mass input pipe, and one end of the auxiliary mass input pipe located inside the gas collecting pipe is connected to two flow dividers.

[0013] Furthermore, four dispersing nozzles are distributed around the outer periphery of the flow divider, and dispersing nozzles are connected to the dispersing nozzles.

[0014] This invention provides an ultra-low emission combustion device for waste gas treatment, which has the following beneficial effects: The waste gas combustion device of this invention combines a pressure stabilizing tank, a pre-filter, and a desulfurization tank for pre-treatment of the input waste gas. The pressure stabilizing tank improves the stability of the gas pressure during waste gas input. The pre-filter performs preliminary treatment of the waste gas, removing particulate matter through built-in physicochemical methods. Adsorbents and filters are used to adsorb and intercept particulate matter, reducing the burden on subsequent treatment equipment, improving overall treatment efficiency, and increasing the purity and quality of the waste gas. This provides a more stable and efficient waste gas source for subsequent treatment processes. Inside the desulfurization tank, the desulfurizing agent reacts with sulfur dioxide at high temperature to generate sulfate, achieving the purpose of removing sulfur dioxide from the waste gas. Through waste gas pre-treatment, the airflow and pressure stability of the input waste gas are improved, and the particulate matter and harmful substances in the waste gas are reduced, which is beneficial to improving the stability and combustion efficiency of the waste gas combustion device.

[0015] Furthermore, in the waste gas combustion device of this invention, an auxiliary combustion fan introduces external air into the burner to assist combustion, providing the necessary oxygen for the combustion of waste gas. While flowing through the gas collecting pipe and the conical mixing chamber, the air passes through the gas collecting guide pipe, the mixing disc, and the waste gas mixing frame. During its flow through the guide mixing plate, it undergoes initial mixing via a spiral-shaped conveying mechanism. Further mixing occurs through the waste gas mixing frame, the air inlet of the air vent plate, and the staggered inclined plates. Finally, as it passes through the jet pipe, it undergoes multiple spiral-shaped conveying processes via the mixing plate inside the pipe, ensuring complete mixing of air and waste gas into a stable combustible gas. This stable combustible gas is then delivered to the combustion chamber in a densely distributed bundle for more thorough and uniform combustion. Compared to existing direct-injection combustion devices lacking a gas mixing structure, this reduces the probability of deflagration and avoids uneven and unstable combustion caused by uneven gas distribution and pressure differences.

[0016] Furthermore, the auxiliary gas or liquid required for combustion can be added through the auxiliary mass input pipe in this invention. Multiple dispersion nozzles are evenly distributed through the structure of the distribution plate and dispersion nozzle. When the auxiliary gas or liquid is evenly sprayed into the gas collection pipe through the dispersion nozzle, it can flow upward with the high-velocity air input by the combustion fan, so that the combustion aid and air can be mixed quickly. It can be used for the addition of gaseous or liquid combustion aids at the same time and promotes the stable mixing of combustion aid and combustion gas. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0018] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0019] In the attached diagram: Figure 1A schematic diagram of the top view of the structure of this application is shown; Figure 2 A schematic diagram of the left-side structure of this application is shown; Figure 3 A schematic diagram of the burner of this application is shown; Figure 4 A schematic diagram of the internal structure of the burner of this application is shown; Figure 5 This paper shows a schematic diagram of the internal structure of the gas collecting tube in this application; Figure 6 A schematic diagram of the hybrid coupling structure of this application is shown; Figure 7 A schematic diagram of the exhaust gas mixing rack of this application is shown; Figure 8 A schematic diagram of the structure of the gas collection and guiding inner tube of this application is shown; Figure 9 A schematic diagram of the combustion disc structure of this application is shown; Figure 10 A schematic diagram of the internal structure of the jet tube of this application is shown; Figure 11 This application shows Figure 4 A magnified structural diagram of point A in the middle; Figure 12 This application shows Figure 5 A magnified structural diagram of point B in the middle.

[0020] Figure label: 1. Burner; 101. Combustion chamber; 102. Exhaust pipe; 103. Conical mixing chamber; 1031. Inner spiral connector; 104. Gas collecting pipe; 2. Combustion fan; 201. Combustion air inlet pipe; 3. Pressure stabilizing tank; 4. Primary filter; 5. Desulfurization tank; 6. Exhaust fan; 601. Combustion gas inlet pipe; 7. Auxiliary mass inlet pipe; 701. Flow divider; 702. Dispersion nozzle; 703. Dispersion nozzle; 8. Gas collecting guide inner pipe; 801. Guide inner pipe inlet; 802. Guide... 803. Inner pipe outlet; 9. Guide mixing plate; 10. Mixing coupling; 11. Mixing disc; 12. Upper air passage plate; 13. Lower air passage plate; 14. Upper air passage inclined plate; 15. Lower air passage inclined plate; 16. Exhaust gas mixing rack; 17. Inner spiral plate; 18. Outer spiral plate; 19. Combustion disc; 10. Angled spray inlet; 10. Jet pipe; 11. Inner pipe mixing plate; 12. One-way valve; 13. Micro-orifice jet nozzle; 14. Ignition device. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. Based on the described 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] Example 1: Please refer to Figures 1 to 12 : This invention proposes an ultra-low emission combustion device for waste gas treatment, comprising: a burner 1, which is equipped with a waste gas inlet and a combustion air inlet; a combustion air blower 2, whose outlet is connected to the combustion air inlet of the burner 1 via a combustion air input pipe 201; and a waste gas pretreatment unit, which includes, in sequence via pipelines: a pressure stabilizing tank 3, a primary filter 4, a desulfurization tank 5, and an induced draft fan 6. The primary filter 4 contains activated carbon adsorbent and a filter, the desulfurization tank 5 contains desulfurizing agent, and the pressure stabilizing tank 3 can buffer the waste gas pressure by regulating the gas pressure in the pipeline, protecting the pipeline system and ensuring the safe and stable operation of the equipment. The air inlet of the induced draft fan 6 is connected to the air outlet of the pressure stabilizing tank 3, and its air outlet is connected to the exhaust gas inlet of the burner 1 through the combustion gas inlet pipe 601. The burner 1 is composed of a gas collecting pipe 104, a conical mixing chamber 103, a combustion chamber 101, and an exhaust pipe 102 from bottom to top. A gas collecting guide inner pipe 8 is fixedly installed inside the gas collecting pipe 104. Eight guide inner pipe inlets 801 are distributed around the lower edge of the pipe wall, which connect the exhaust gas inlet of the burner 1 to the inside of the gas collecting guide inner pipe 8. Eight guide inner pipe outlets 802 are distributed around the upper edge of the pipe wall, which connect the conical mixing chamber 103 to the combustion chamber 104 through the guide inner pipe inlets 801. Inside chamber 103 and the gas collection guide inner pipe 8, a mixing shaft 9 is provided inside the conical mixing chamber 103. Four sets of mixing discs 901 and four sets of exhaust gas mixing racks 902 are fixedly sleeved on the outside of the mixing shaft 9. The outer edges of the mixing discs 901 and the exhaust gas mixing racks 902 are both in contact with the inner wall of the conical mixing chamber 103. A combustion disc 10 is rotatably connected to the bottom of the combustion chamber 101 via a bearing. An air jet pipe 1002 is tightly inserted into the angled nozzle 1001 opened on the disc. An igniter 11 is located above the combustion disc 10. The exhaust gas combustion equipment combines the burner 1 with the pressure stabilizing tank 3, the primary filter 4, and the desulfurization tank 5. The system pre-treats the input exhaust gas by using a pressure stabilizing tank 3 to improve the stability of the gas pressure during input, and uses a primary filter 4 to perform preliminary treatment of the exhaust gas. It also removes particulate matter from the exhaust gas through built-in physicochemical methods, using adsorbents and filters to adsorb and intercept particulate matter, thereby reducing the burden on subsequent treatment equipment, improving overall treatment efficiency, and improving the purity and quality of the exhaust gas. This provides a more stable and efficient exhaust gas source for subsequent treatment processes. The desulfurizing agent inside the desulfurization tank 5 reacts with sulfur dioxide at high temperature to generate sulfate, thereby removing sulfur dioxide from the exhaust gas. The induced draft fan 6 further maintains a stable input of exhaust gas to the burner 1.By pre-treating the exhaust gas, the stability of the airflow and pressure of the input exhaust gas is improved, and the particles and harmful substances in the exhaust gas are reduced. This is beneficial to improving the stability and combustion efficiency of the exhaust gas combustion equipment. When the exhaust gas enters the gas collecting pipe 104, the combustion fan 2 introduces air into the gas collecting pipe 104. The air and exhaust gas simultaneously enter the inner gas collecting guide pipe 8 and flow into the conical mixing chamber 103. After passing through the exhaust gas mixing frame 902 and the mixing disc 901, they are uniformly mixed under the action of the guide mixing plate 803, the spiral plate, and the through-hole inclined plate. The combustion gas is then injected into the combustion chamber 101 through the jet pipe 1002 and ignited by the igniter 11, ensuring continuous and stable combustion of the combustion gas.

[0023] In this embodiment, spiral-shaped flow mixing plates 803 are arranged vertically inside the gas collecting and guiding inner pipe 8. The edges of the flow mixing plates 803 are attached to the inner wall of the gas collecting and guiding inner pipe 8, and the spiral directions of two adjacent flow mixing plates 803 are opposite. As air and exhaust gas enter the gas collecting and guiding inner pipe 8 and flow upward, they pass through the spiral-shaped flow mixing plates 803. As the spiral structure of the flow mixing plates 803 rotates and flows, the air and exhaust gas are initially mixed by passing through multiple flow mixing plates 803 with different spiral directions, and then radially and laterally injected into the conical mixing chamber 103 through the top flow guiding inner pipe outlet 802.

[0024] In this embodiment, the bottom center of the conical mixing chamber 103 is connected to an inner spiral connector 1031 via a bracket. The lower end of the mixing shaft 9 is threaded, and the threaded portion of the lower end of the mixing shaft 9 is spirally connected to the inner spiral connector 1031. By connecting the mixing shaft 9 with the inner spiral connector 1031, the mixing disc 901 and the exhaust gas mixing frame 902 are locked inside the burner 1. When the mixing shaft 9 is rotated and disassembled, the mixing disc 901 and the exhaust gas mixing frame 902 can be disassembled simultaneously, which facilitates the cleaning, maintenance and upkeep of the internal components of the device.

[0025] In this embodiment, the exhaust gas mixing frame 902 is made by welding an inner spiral plate 9021 and an outer spiral plate 9022 together. The outer spiral plate 9022 is located outside the inner spiral plate 9021. Both the inner spiral plate 9021 and the outer spiral plate 9022 are curled into a spiral shape, and the spiral directions of the inner spiral plate 9021 and the outer spiral plate 9022 are opposite. When the exhaust gas and air mixture passes through the conical mixing chamber 103 of the conical structure, it first passes through the exhaust gas mixing frame 902. The two spiral inner spiral plates 9021 and the outer spiral plate 9022 with different spiral directions cause the flowing mixture to collide and rotate, and then enter the upper mixing disk 901.

[0026] In this embodiment, the mixing plate 901 is formed by connecting an upper air-permeable plate 9011 and a lower air-permeable plate 9012 through a ring frame. Both the upper air-permeable plate 9011 and the lower air-permeable plate 9012 have two sets of rectangular through-holes arranged in a ring. These two sets of rectangular through-holes are respectively an inner ring through-hole set and an outer ring through-hole set. An upper through-hole inclined plate 9013 is fixedly connected above the rectangular through-holes of the upper air-permeable plate 9011. The upper through-hole inclined plate 9013 is inclined, and the orientation of the upper through-hole inclined plate 9013 of the outer ring through-hole set is opposite to that of the upper through-hole inclined plate 9013 of the inner ring through-hole set. The lower air-permeable plate 9011... An inclined downward air passage plate 9014 is fixedly connected above the rectangular opening of the 12. The downward air passage plate 9014 faces the opposite direction to the upward air passage plate 9013 directly above it. Under the action of the upward air passage plate 9013 and the downward air passage plate 9014, the mixed gas undergoes multiple reversals and collisions when passing through the rectangular opening of the air passage plate, which further mixes the mixed gas. After passing through the cone-shaped mixing chamber 103, the flow rate of the mixed waste gas is changed during the transportation process. The change in flow rate further induces unstable flow and collision mixing of the gas, so that the air and waste gas are fully mixed.

[0027] In this embodiment, an internal mixing plate 1003 is fixedly connected inside the jet pipe 1002. The internal mixing plate 1003 is a spiral plate, and adjacent internal mixing plates 1003 have opposite spiral directions. A micro-perforated jet head 1005 is fixedly connected to the upper end of the jet pipe 1002. The micro-perforated jet head 1005 has densely perforated air holes. The oblique arrangement of the jet pipe 1002 causes the micro-perforated jet head 1005 to generate a reaction force when it sprays gas, which drives the combustion disc 10 to rotate. The jet pipe 1002 agitates the gas at the bottom. A one-way valve 1004 is provided between the micro-perforated jet head 1005 and the internal mixing plate 1003. The outlet of the one-way valve 1004 faces the micro-perforated jet head 1005. The jet nozzle 1005; when the mixed gas finally passes through the jet pipe 1002, it is conveyed through the mixing plate 1003 inside the pipe through multiple spiral changes to achieve fine mixing, so that the air and exhaust gas are completely mixed into a gas that can be stably combusted. The stable combustible gas is then conveyed to the combustion chamber 101 in a densely distributed small bundle state, so that more complete and uniform combustion can take place inside the combustion chamber 101. Through the action of the one-way valve 1004, if the gas inside the combustion chamber 101 explodes, the instantaneous pressure inside the combustion chamber 101 increases. Under the action of pressure, the one-way valve 1004 closes, which can prevent the gas inside the combustion chamber 101 from being affected by the explosion inside the jet pipe 1002.

[0028] In Example 2, based on Example 1, an auxiliary mass input pipe 7 is fixedly connected to the gas collecting pipe 104. One end of the auxiliary mass input pipe 7 located inside the gas collecting pipe 104 is connected to two flow dividers 701. Four dispersing nozzles 702 are distributed around the outer periphery of the flow dividers 701. Dispersing nozzles 703 are connected to the dispersing nozzles 702. The auxiliary gas or liquid required for combustion can be added through the auxiliary mass input pipe 7. The multiple dispersing nozzles 703 are evenly distributed through the structure of the flow dividers 701 and the dispersing nozzles 702. When the auxiliary gas or liquid is evenly sprayed into the gas collecting pipe 104 through the dispersing nozzles 703, it can flow upward with the high-velocity air input by the combustion fan 2, so that the combustion aid and air are quickly mixed.

[0029] The working principle of this embodiment is as follows: First, the exhaust gas is piped into the pressure stabilizing tank 3. The pressure stabilizing tank 3 improves the stability of the gas pressure during input, and then the exhaust gas enters the primary filter 4. The primary filter 4 removes particulate matter from the exhaust gas, reducing the burden on subsequent treatment equipment, improving overall treatment efficiency, and increasing the purity and quality of the exhaust gas. The exhaust gas then enters the desulfurization tank 5. Inside the desulfurization tank 5, the desulfurizing agent reacts with sulfur dioxide at high temperature to generate sulfate, achieving the purpose of removing sulfur dioxide from the exhaust gas. The exhaust gas is then conveyed to the bottom of the burner 1 by the induced draft fan 6. In the gas collection pipe 104, when the exhaust gas enters the gas collection pipe 104, the combustion fan 2 introduces air into the gas collection pipe 104. The air and exhaust gas simultaneously enter the inner gas collection guide pipe 8 and flow towards the conical mixing chamber 103. As the air and exhaust gas enter the inner gas collection guide pipe 8 and flow upward, they pass through the spiral structure of the guide mixing plate 803. As the spiral structure of the guide mixing plate 803 rotates and flows, the air and exhaust gas are initially mixed by passing through multiple guide mixing plates 803 with different rotation directions, and then pass through the top guide inner pipe outlet 8. 02 is injected radially and laterally into the conical mixing chamber 103, passes through the waste gas mixing frame 902, and collides and rotates with the flowing mixed gas caused by the two spiral inner spiral plates 9021 and outer spiral plates 9022 with different rotation directions. It then enters the upper mixing plate 901. Under the action of the upper through-hole inclined plate 9013 and the lower through-hole inclined plate 9014, the mixed gas undergoes multiple reversals and collisions as it passes through the rectangular through-hole of the through-hole plate, further mixing the mixed gas. After passing through the conical mixing chamber 103 with its conical structure, the transport of the mixed waste gas is changed. The flow rate during the process further induces unstable flow and collision mixing of the gas through changes in flow rate, so that the air and exhaust gas are fully mixed. When the mixed gas finally passes through the jet pipe 1002, it is conveyed through the mixing plate 1003 inside the pipe through multiple spiral changes to achieve fine mixing, so that the air and exhaust gas are completely mixed into a gas that can be stably combusted. The stable combustible gas is then conveyed to the combustion chamber 101 in a densely distributed small bundle state. The combustible gas is ignited by the igniter 11, so that the combustible gas can be fully and evenly combusted inside the combustion chamber 101.

[0030] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0031] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0032] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. An ultra-low emission combustion device for waste gas treatment, characterized in that, include: The burner (1) is provided with an exhaust gas inlet and an auxiliary combustion air inlet; the auxiliary combustion fan (2) has its outlet connected to the auxiliary combustion gas inlet of the burner (1) through an auxiliary combustion air input pipe (201); the exhaust gas pretreatment unit includes, in sequence, a pressure stabilizing tank (3), a primary filter (4), a desulfurization tank (5), and an induced draft fan (6) connected by pipes. The inlet of the induced draft fan (6) is connected to the outlet of the pressure stabilizing tank (3), and its outlet is connected to the exhaust gas inlet of the burner (1) through a combustion gas inlet pipe (601); the burner (1) is composed of a gas collecting pipe (104), a conical mixing chamber (103), a combustion chamber (101), and an exhaust pipe (102) from bottom to top. The gas collecting pipe (104) is fixedly installed with a gas collecting guide inner pipe (8), and eight guide inner pipe inlets (801) are distributed around the lower edge of the pipe wall. The inner pipe inlet (801) connects the exhaust gas inlet of the burner (1) to the inside of the gas collection guide inner pipe (8). Eight guide inner pipe outlets (802) are distributed around the upper edge of the pipe wall. The guide inner pipe inlet (801) connects the conical mixing chamber (103) to the inside of the gas collection guide inner pipe (8). The conical mixing chamber (103) is equipped with a mixing coupling (9). Four sets of mixing discs (901) and four sets of mixing discs (901) are fixedly sleeved on the outside of the mixing coupling (9). The outer edges of the exhaust gas mixing rack (902), the mixing plate (901) and the exhaust gas mixing rack (902) are all attached to the inner wall of the conical mixing chamber (103). The bottom of the combustion chamber (101) is rotatably connected to the combustion plate (10) through the bearing. The jet pipe (1002) is tightly inserted into the oblique injection port (1001) opened on the plate. An igniter (11) is provided above the combustion plate (10). The igniter (11) is located above the combustion plate (10).

2. The ultra-low emission combustion device for waste gas treatment according to claim 1, characterized in that, The gas collecting and guiding inner tube (8) has spiral-shaped guiding mixing plates (803) arranged vertically inside. The edges of the guiding mixing plates (803) are attached to the inner wall of the gas collecting and guiding inner tube (8), and the spiral directions of two adjacent guiding mixing plates (803) are opposite.

3. The ultra-low emission combustion device for waste gas treatment according to claim 1, characterized in that, The bottom center of the cone-shaped mixing chamber (103) is connected to an inner spiral connector (1031) via a bracket. The lower end of the mixing shaft (9) is threaded, and the threaded part of the lower end of the mixing shaft (9) is spirally connected to the inner spiral connector (1031).

4. The ultra-low emission combustion device for waste gas treatment according to claim 1, characterized in that, The mixing plate (901) is formed by connecting the upper air plate (9011) and the lower air plate (9012) through a ring frame. Both the upper air plate (9011) and the lower air plate (9012) are provided with two sets of rectangular through holes arranged in a ring. The two sets of rectangular through holes are the inner ring through hole group and the outer ring through hole group, respectively. An upper through hole inclined plate (9013) is fixedly connected above the rectangular through hole of the upper air plate (9011). The upper through hole inclined plate (9013) is inclined. The upper through hole inclined plate (9013) of the outer ring through hole group faces the opposite direction to the upper through hole inclined plate (9013) of the inner ring through hole group.

5. The ultra-low emission combustion device for waste gas treatment according to claim 4, characterized in that, An inclined air inlet plate (9014) is fixedly connected above the rectangular opening of the lower air inlet plate (9012). The lower air inlet plate (9014) faces the opposite direction to the upper air inlet plate (9013) directly above it.

6. The ultra-low emission combustion device for waste gas treatment according to claim 5, characterized in that, The exhaust gas mixing rack (902) is made by welding an inner spiral plate (9021) and an outer spiral plate (9022). The outer spiral plate (9022) is located outside the inner spiral plate (9021). Both the inner spiral plate (9021) and the outer spiral plate (9022) are curled into a spiral shape, and the spiral directions of the inner spiral plate (9021) and the outer spiral plate (9022) are opposite.

7. The ultra-low emission combustion device for waste gas treatment according to claim 1, characterized in that, The jet pipe (1002) is fixedly connected to an internal mixing plate (1003). The internal mixing plate (1003) is a spiral plate, and the spiral directions of adjacent internal mixing plates (1003) are opposite. The upper end of the jet pipe (1002) is fixedly connected to a micro-hole jet head (1005), and the micro-hole jet head (1005) has densely perforated holes.

8. The ultra-low emission combustion device for waste gas treatment according to claim 7, characterized in that, A one-way valve (1004) is provided between the micro-hole jet head (1005) and the mixing plate (1003) inside the tube, with the outlet of the one-way valve (1004) facing the micro-hole jet head (1005).

9. The ultra-low emission combustion device for waste gas treatment according to claim 1, characterized in that, The gas collecting pipe (104) is fixedly connected to an auxiliary mass input pipe (7), and one end of the auxiliary mass input pipe (7) located inside the gas collecting pipe (104) is connected to two flow dividers (701).

10. The ultra-low emission combustion device for waste gas treatment according to claim 9, characterized in that, The flow divider (701) has four dispersing nozzles (702) distributed around its outer periphery, and each dispersing nozzle (702) is connected to a dispersing nozzle (703).

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