An ultra-low emission combustion apparatus for exhaust gas treatment

Abstract

The application provides an ultra-low emission combustion device for waste gas treatment, and relates to the technical field of oil and gas tail gas waste gas treatment.The device comprises a burner provided with a waste gas inlet and a combustion air inlet; a combustion air fan; and a combustion air input pipe connecting the air outlet of the combustion air fan to the combustion gas inlet of the burner. The device improves the airflow and air pressure stability of the input waste gas, reduces the particles and harmful substances in the waste gas, and is beneficial to improving the stability and combustion efficiency of the waste gas combustion device during waste gas combustion. The device solves the problem that there is no effective oil and gas tail gas waste gas pretreatment process before waste gas incineration, which is not conducive to reducing the pollutants such as sulfur dioxide generated during waste gas combustion treatment, and is not conducive to ensuring the purity and quality of the waste gas to provide a more stable and efficient waste gas source for subsequent treatment processes. The waste gas, air and combustion gas are not mixed sufficiently, which affects the combustion stability and waste gas combustion rate.

Description

TECHNICAL FIELD

[0001] The present application relates to oil and gas tail gas waste gas treatment technical field, especially to a kind of for waste gas treatment ultra-low emission combustion equipment. BACKGROUND

[0002] In the prior art waste gas combustion treatment mode, the waste gas lacks effective oil and gas tail gas waste gas pretreatment process 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 more stable and efficient waste gas source for subsequent treatment process; the waste gas is not mixed sufficiently with air and combustion-supporting gas, which affects the combustion stability and waste gas combustion rate. SUMMARY

[0003] The present application provides a kind of for waste gas treatment ultra-low emission combustion equipment to solve the problem in prior art waste gas combustion treatment mode, the waste gas lacks effective oil and gas tail gas waste gas pretreatment process 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 more stable and efficient waste gas source for subsequent treatment process; the waste gas is not mixed sufficiently with air and combustion-supporting gas, which affects the combustion stability and waste gas combustion rate.

[0004] The present application provides a kind of for waste gas treatment ultra-low emission combustion equipment, specifically comprising: burner, which is provided with waste gas inlet, combustion-supporting air inlet;Combustion-supporting fan, its air outlet is connected to the combustion-supporting gas inlet of the burner by combustion-supporting air input pipe;Waste gas pretreatment unit, the waste gas pretreatment unit includes by pipeline sequentially communicated: pressure stabilizing tank, primary filter, desulfurization tank, induced draft fan, the air inlet of the induced draft fan is connected with the gas outlet of the pressure stabilizing tank, its air outlet is connected to the waste gas inlet of the burner by combustion gas introduction pipe pipeline;The burner is composed of gas collecting pipe, cone section mixing chamber, combustion chamber and exhaust pipe from bottom to top, the gas collecting pipe is fixedly installed with gas collecting flow guide inner tube inside, eight flow guide inner tube inlets are distributed around the lower edge of the tube wall and opened, the waste gas inlet of the burner is communicated with the inside of the gas collecting flow guide inner tube through the flow guide inner tube inlet, eight flow guide inner tube outlets are distributed around the upper edge of the tube wall and opened, the cone section mixing chamber is communicated with the inside of the gas collecting flow guide inner tube through the flow guide inner tube inlet, the inside of the cone section mixing chamber is provided with mixing shaft, four groups of mixing discs and four groups of waste gas mixing frames are fixedly sleeved on the mixing shaft, the outer edges of the mixing disc and the waste gas mixing frame are attached to the inner wall of the cone section mixing chamber, the combustion chamber is rotatably connected with combustion disc through bearing at the bottom, the jet pipe is tightly inserted into the inclined jet port of the combustion disc, the igniter is arranged above the combustion disc.

[0005] Further, the gas collecting and guiding inner tube is internally arranged with spiral-shaped guiding and mixing sheets in an up-down distribution, the edges of the guiding and mixing sheets are attached to the inner wall of the gas collecting and guiding inner tube, and the spiral directions of the two longitudinally adjacent guiding and mixing sheets are opposite.

[0006] Further, the inner spiral connector is connected to the lower end of the mixing connecting shaft through a support.

[0007] Further, the mixing disc is formed by the upper gas passing plate and the lower gas passing plate through the annular frame, two groups of annularly distributed rectangular through holes are formed in the upper gas passing plate and the lower gas passing plate, the two groups of rectangular through holes are an inner circle through hole group and an outer circle through hole group, the upper gas passing plate is fixedly connected with an upper through hole inclined plate above the rectangular through hole, the upper through hole inclined plate is inclined, and the upper through hole inclined plate of the outer circle through hole group is opposite to the upper through hole inclined plate of the inner circle through hole group in the direction.

[0008] Further, the lower gas passing plate is fixedly connected with an inclined lower gas passing inclined plate above the rectangular through hole, and the direction of the lower gas passing inclined plate is opposite to that of the upper through hole inclined plate directly above the lower gas passing inclined plate.

[0009] Further, the exhaust gas mixing frame is made by welding the inner spiral plate and the outer spiral plate, the outer spiral plate is located outside the inner spiral plate, the inner spiral plate and the outer spiral plate are both curled to be spiral-shaped, and the spiral directions of the inner spiral plate and the outer spiral plate are opposite.

[0010] Further, the inner tube mixing sheet is fixedly connected to the inner tube of the jet pipe, the inner tube mixing sheet is a spiral sheet, the spiral directions of the adjacent inner tube mixing sheets are opposite, the micro-porous jet head is fixedly connected to the upper end of the jet pipe, and the micro-porous jet head is densely provided with gas holes.

[0011] Further, the one-way air valve is arranged between the micro-porous jet head and the inner tube mixing sheet, and the air outlet of the one-way air valve is directed to the micro-porous jet head.

[0012] Further, the auxiliary quality input pipe is fixedly connected to the gas collecting pipe, and two shunt discs are connected to one end of the auxiliary quality input pipe in the gas collecting pipe.

[0013] Further, the four dispersion jet pipes are arranged around the shunt disc, and the dispersion jet head is connected to the dispersion jet pipe.

[0014] The application provides an ultra-low emission combustion equipment for waste gas treatment, and has the following beneficial effects.

[0015] The waste gas combustion equipment in the application is combined with a pressure stabilizing tank, a primary filter and a desulfurizing tank for pretreatment of input waste gas, the pressure stability of the waste gas input is improved through the pressure stabilizing tank, the waste gas is preliminarily treated through the setting of the primary filter, the particulate matters in the waste gas are removed through the built-in physical and chemical method, the adsorbent and filter are used to adsorb and intercept the particulate matters, so as to reduce the burden of the subsequent treatment equipment, improve the overall treatment efficiency, improve the purity and quality of the waste gas, and provide a more stable and efficient waste gas source for the subsequent treatment process, the desulfurizing agent in the desulfurizing tank reacts with sulfur dioxide at high temperature to generate sulfate, so as to remove sulfur dioxide in the waste gas; through the pretreatment of the waste gas, the airflow and pressure stability of the input waste gas are improved, the particulate matters and harmful substances in the waste gas are reduced, which is beneficial to improve the stability and combustion efficiency of the waste gas combustion equipment during waste gas combustion.

[0016] In addition, in the waste gas combustion equipment in the application, the internal air of the burner is introduced to the external air by the combustion air fan, which plays a combustion supporting role, provides the required oxygen for the combustion of the waste gas, and flows through the gas collecting guide inner tube, the mixing disc and the waste gas mixing frame while flowing in the gas collecting pipe and the cone section mixing chamber, and after the preliminary mixing by the spiral direction changing conveying, passes through the gas ports of the waste gas mixing frame and the gas passing plate, and is further mixed under the guide action of the staggered inclined plates, and finally passes through the jet pipe and is conveyed to the combustion chamber in the form of a small bundle of dense distribution, and is more fully and uniformly combusted in the combustion chamber. Compared with the existing split direct injection type combustion device which lacks a gas mixing structure, the probability of deflagration is reduced, and the situation of uneven and unstable combustion caused by uneven distribution of different gases and pressure difference is avoided.

[0017] In addition, in the application, the setting of the auxiliary gas input pipe can add auxiliary gas or liquid required for combustion, and the structure of the split disc and the dispersion jet pipe can uniformly distribute a plurality of dispersion nozzles. When the auxiliary gas or liquid is uniformly sprayed into the gas collecting pipe through the dispersion nozzles, it can flow upward with the high-flow-rate air input by the combustion air fan, so that the combustion aid and the air are quickly mixed. The addition of gas or liquid combustion aid can promote the stable mixing of the combustion aid and the combustion gas. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings of the embodiments will be briefly introduced below.

[0019] The drawings described below only relate to some embodiments of the application, and are not a limitation of the application.

[0020] In the drawings:

[0021] Figure 1 shows a schematic view of the top structure of the present application;

[0022] Figure 2 shows a schematic view of the left structure of the present application;

[0023] Figure 3 shows a schematic view of the structure of the burner of the present application;

[0024] Figure 4 shows a schematic view of the structure of the inside of the burner of the present application;

[0025] Figure 5 shows a schematic view of the structure of the inside of the manifold of the present application;

[0026] Figure 6 shows a schematic view of the structure of the mixing shaft of the present application;

[0027] Figure 7 shows a schematic view of the structure of the exhaust gas mixing frame of the present application;

[0028] Figure 8 shows a schematic view of the structure of the manifold guide inner tube of the present application;

[0029] Figure 9 shows a schematic view of the structure of the combustion disc of the present application;

[0030] Figure 10 shows a schematic view of the structure of the inside of the jet pipe of the present application;

[0031] Figure 11 shows a schematic view of the structure of the inside of the jet pipe of the present application; Figure 4 shows a schematic view of the structure of the inside of the jet pipe of the present application;

[0032] Figure 12 shows a schematic view of the structure of the inside of the jet pipe of the present application; Figure 5 shows a schematic view of the structure of the inside of the jet pipe of the present application;

[0033] Reference signs:

[0034] 1. Burner; 101. Combustion chamber; 102. Exhaust pipe; 103. Conical mixing chamber; 1031. Inner screw joint; 104. Gas collecting pipe; 2. Combustion air fan; 201. Combustion air input pipe; 3. Pressure stabilizing tank; 4. Primary filter; 5. Desulfurization tank; 6. Induced draft fan; 601. Combustion gas input pipe; 7. Auxiliary material input pipe; 701. Distributing disc; 702. Distributing nozzle; 703. Distributing head; 8. Gas collecting guide inner pipe; 801. Guide inner pipe inlet; 802. Guide inner pipe outlet; 803. Guide mixing sheet; 9. Mixing shaft; 901. Mixing disc; 9011. Upper air passing plate; 9012. Lower air passing plate; 9013. Upper air passing hole inclined plate; 9014. Lower air passing hole inclined plate; 902. Waste gas mixing frame; 9021. Inner screw plate; 9022. Outer screw plate; 10. Combustion disc; 1001. Inclined jetting socket; 1002. Jetting pipe; 1003. Inner pipe mixing sheet; 1004. One-way air valve; 1005. Micro-porous jetting head; 11. Igniter. DETAILED DESCRIPTION

[0035] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the described embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0036] Embodiment one: please refer to Figures 1 to 12 :

[0037] The application provides an ultra-low emission combustion device for waste gas treatment, which comprises a burner 1 provided with a waste gas inlet and a combustion air inlet, a combustion air fan 2, a waste gas pretreatment unit, an induced draft fan 6, and a combustion chamber 101.By pre-treating the exhaust gas, the air flow and air pressure stability of the input exhaust gas are improved, and the particles and harmful substances in the exhaust gas are reduced, which is beneficial to improve the stability and combustion efficiency of the exhaust gas combustion equipment during the exhaust gas combustion. When the exhaust gas enters the gas collecting pipe 104, the air is introduced into the inside of the gas collecting pipe 104 by the combustion air fan 2, and the air and the exhaust gas enter the inside of the gas collecting guide inner pipe 8 at the same time and flow to the conical section mixing chamber 103. After passing through the exhaust gas mixing frame 902 and the mixing disc 901, the air and the exhaust gas are uniformly mixed under the action of the guide mixing sheet 803, the spiral plate and the perforated inclined plate, and are injected into the inside of the combustion chamber 101 through the air injection pipe 1002. The combustion gas is ignited by the igniter 11, so that the combustion gas is continuously and stably burned.

[0038] In the embodiment of the present disclosure, the guide mixing sheets 803 with spiral structures are arranged in the inside of the gas collecting guide inner pipe 8 in an up-down arrangement. The edges of the guide mixing sheets 803 are attached to the inner wall of the gas collecting guide inner pipe 8, and the spiral directions of the two longitudinally adjacent guide mixing sheets 803 are opposite. During the process of the air and the exhaust gas flowing into the inside of the gas collecting guide inner pipe 8 and flowing upward, the air and the exhaust gas pass through the guide mixing sheets 803 with spiral structures, rotate and flow along the spiral structures of the guide mixing sheets 803, and are preliminarily mixed with the exhaust gas by passing through multiple guide mixing sheets 803 with different spiral directions, and are injected into the conical section mixing chamber 103 in a radial horizontal manner through the top guide inner pipe outlet 802.

[0039] In the embodiment of the present disclosure, the inner screw joint base 1031 is connected to the bottom center of the inside of the conical section mixing chamber 103 through a support, and the lower end of the mixing connecting shaft 9 is provided with a thread. The lower end thread part of the mixing connecting shaft 9 is screw-connected with the inner screw joint base 1031. By butt-jointing the mixing connecting shaft 9 and the inner screw joint base 1031, the mixing disc 901 and the exhaust gas mixing frame 902 are locked in the inside of the burner 1. When the mixing connecting shaft 9 is rotated and disassembled, the mixing disc 901 and the exhaust gas mixing frame 902 can be synchronously disassembled, which is convenient for cleaning, maintenance and repair of the internal components of the device.

[0040] In the embodiment of the present disclosure, the exhaust gas mixing frame 902 is made by welding the inner spiral plate 9021 and the outer spiral plate 9022. The outer spiral plate 9022 is located outside the inner spiral plate 9021, and the inner spiral plate 9021 and the outer spiral plate 9022 are both curled to be spiral-shaped, 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 gas passes through the conical section mixing chamber 103 with a conical structure, it first passes through the exhaust gas mixing frame 902, collides and rotates with the flowing mixture gas by the two spiral-shaped inner spiral plate 9021 and outer spiral plate 9022 with different spiral directions, and then enters the upper mixing disc 901.

[0041] In the embodiment of the present disclosure, the mixing disc 901 is formed by the upper air passage plate 9011 and the lower air passage plate 9012 through the annular frame, two groups of annularly distributed rectangular through holes are formed in the upper air passage plate 9011 and the lower air passage plate 9012, the two groups of rectangular through holes are respectively the inner circle through hole group and the outer circle through hole group, the upper air passage plate 9011 is fixedly connected with the upper through hole inclined plate 9013 above the rectangular through hole, the upper through hole inclined plate 9013 is inclined, the upper through hole inclined plate 9013 of the outer circle through hole group is opposite to the upper through hole inclined plate 9013 of the inner circle through hole group in the direction; the lower air passage plate 9012 is fixedly connected with the lower air passage inclined plate 9014 which is inclined above the rectangular through hole, the direction of the lower air passage inclined plate 9014 is opposite to the direction of the upper through hole inclined plate 9013 directly above; under the action of the upper through hole inclined plate 9013 and the lower air passage inclined plate 9014, the mixed gas passes through the rectangular through hole of the air passage plate and changes direction and collides multiple times, so that the mixed gas is further mixed, and the flow rate in the mixed waste gas conveying process is changed through the action of the conical section mixing chamber 103, so that the unstable flow and collision mixing of the gas are further caused, and the air and the waste gas are fully mixed.

[0042] In the embodiment of the present disclosure, the inside of the air injection pipe 1002 is fixedly connected with the pipe mixing sheet 1003, the pipe mixing sheet 1003 is a spiral sheet, the adjacent pipe mixing sheets 1003 are opposite in spiral direction, the upper end of the air injection pipe 1002 is fixedly connected with the micro-porous air injection head 1005, the micro-porous air injection head 1005 is densely provided with air holes, the air injection pipe 1002 is obliquely arranged, so that the micro-porous air injection head 1005 generates a reaction force when injecting gas, which pushes the combustion disc 10 to rotate and agitates the bottom gas through the air injection pipe 1002; the one-way air valve 1004 is arranged between the micro-porous air injection head 1005 and the pipe mixing sheet 1003, and the air outlet of the one-way air valve 1004 faces the micro-porous air injection head 1005; the mixed gas passes through the pipe mixing sheet 1003 multiple times when passing through the air injection pipe 1002, so as to realize fine mixing, so that the air and the waste gas are fully mixed into gas which can be stably combusted, and the stable combustion gas is conveyed to the combustion chamber 101 in the form of densely distributed small beams, so as to be more fully and uniformly combusted in the combustion chamber 101; under the action of the one-way air valve 1004, if the gas in the combustion chamber 101 explodes, the instantaneous pressure in the combustion chamber 101 increases, and the one-way air valve 1004 is closed under the pressure, so as to avoid the influence of the explosion of the gas in the combustion chamber 101 on the inside of the air injection pipe 1002.

[0043] In example two, on the basis of example one, the gas collecting pipe 104 is fixedly connected with an auxiliary mass input pipe 7, one end of the auxiliary mass input pipe 7 inside the gas collecting pipe 104 is connected with two flow dividing discs 701; four dispersed spray pipes 702 are arranged on the outer periphery of the flow dividing disc 701, the dispersed spray pipe 702 is connected with a dispersed spray head 703, the auxiliary gas or liquid required for combustion can be added through the auxiliary mass input pipe 7, and the multiple dispersed spray heads 703 are uniformly distributed through the structure of the flow dividing disc 701 and the dispersed spray pipe 702, when the auxiliary gas or liquid is uniformly sprayed into the gas collecting pipe 104 through the dispersed spray head 703, it can flow upward with the high flow rate air input by the combustion air fan 2, so that the combustion aid and the air are rapidly mixed.

[0044] The working principle of the present embodiment is as follows: first, the exhaust gas is connected into the pressure stabilizing tank 3 through the pipeline, enters the primary filter 4 after the pressure stability of the exhaust gas input is improved by the pressure stabilizing tank 3, removes the particulate matter in the exhaust gas through the primary filter 4, reduces the burden of the subsequent treatment equipment, improves the overall treatment efficiency, and improves the purity and quality of the exhaust gas, and then enters the desulfurizing tank 5, the desulfurizing agent inside the desulfurizing tank 5 reacts with sulfur dioxide at high temperature to generate sulfate, so as to remove sulfur dioxide in the exhaust gas, and the exhaust gas is transported into the gas collecting pipe 104 at the bottom of the burner 1 through the induced draft fan 6, when the exhaust gas enters the gas collecting pipe 104, the air is introduced into the gas collecting pipe 104 through the combustion air fan 2, the air and the exhaust gas enter the inside of the gas collecting flow guide inner pipe 8 and flow towards the conical section mixing chamber 103, in the process of flowing upwards, the air and the exhaust gas pass through the flow guide mixing sheet 803 with a spiral structure, rotate and flow along with the spiral structure of the flow guide mixing sheet 803, and the air and the exhaust gas are preliminarily mixed by passing through multiple flow guide mixing sheets 803 with different rotation directions, and are sprayed radially and horizontally into the conical section mixing chamber 103 through the top flow guide inner pipe outlet 802, pass through the exhaust gas mixing frame 902, and collide and rotate with the mixed gas flowing through the two spiral inner spiral plates 9021 and outer spiral plates 9022 with different rotation directions, and enter the upper mixing disc 901, under the action of the upper through hole inclined plate 9013 and the lower through gas inclined plate 9014, the mixed gas collides and changes direction multiple times when passing through the rectangular through hole of the through gas plate, so that the mixed gas is further mixed, and the flow rate of the mixed exhaust gas is changed through the action of the conical section mixing chamber 103 with a conical structure, so that the air and the exhaust gas are fully mixed, the mixed gas finally passes through the pipe-in mixing sheet 1003 through multiple spiral changes of direction when passing through the gas injection pipe 1002, so as to realize fine mixing, so that the air and the exhaust gas are completely mixed into gas that can be stably combusted, and the stable combustion gas is transported to the combustion chamber 101 in the form of a small and densely distributed beam, and the combustion gas is ignited by the igniter 11 to make the combustion gas burn uniformly and fully in the combustion chamber 101.

[0045] In this document, the following are noted:

[0046] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0047] 2. In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined to obtain new embodiments.

[0048] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. An ultra-low emission combustion apparatus for exhaust gas treatment, characterized by, The application relates to a combustion device. The combustion device comprises a burner (1) provided with a waste gas inlet and a combustion air inlet; a combustion air fan (2) with an air outlet connected to the combustion gas inlet of the burner (1) through a combustion air input pipe (201); a waste gas pretreatment unit comprising, in sequence and connected through pipes, a pressure stabilizing tank (3), a primary filter (4), a desulfurization tank (5) and an induced draft fan (6), the air inlet of the induced draft fan (6) being connected to the air outlet of the pressure stabilizing tank (3), and the air outlet of the induced draft fan (6) being connected to the waste gas inlet of the burner (1) through a combustion gas introduction pipe (601); the burner (1) is composed of, from bottom to top, a gas collecting pipe (104), a conical mixing chamber (103), a combustion chamber (101) and an exhaust pipe (102), the inside of the gas collecting pipe (104) is fixedly provided with a gas collecting flow guide inner pipe (8), eight flow guide inner pipe inlets (801) are formed in the lower edge of the pipe wall of the gas collecting flow guide inner pipe (8) and are connected to the waste gas inlet of the burner (1) and the inside of the gas collecting flow guide inner pipe (8), eight flow guide inner pipe outlets (802) are formed in the upper edge of the pipe wall of the gas collecting flow guide inner pipe (8) and are connected to the conical mixing chamber (103) and the inside of the gas collecting flow guide inner pipe (8), the inside of the conical mixing chamber (103) is provided with a mixing connecting shaft (9), four groups of mixing discs (901) and four groups of waste gas mixing frames (902) are fixedly sleeved on the mixing connecting shaft (9), the outer edges of the mixing discs (901) and the waste gas mixing frames (902) are attached to the inner wall of the conical mixing chamber (103), the inside bottom of the combustion chamber (101) is rotatably connected to a combustion disc (10) through a bearing, a jet pipe (1002) is tightly inserted into a jet inclined socket (1001) formed in the disc body of the combustion disc (10), an igniter (11) is arranged above the combustion disc (10), the inside of the gas collecting flow guide inner pipe (8) is arranged with helical flow guide mixing sheets (803) in an up-down arrangement, the edges of the flow guide mixing sheets (803) are attached to the inner wall of the gas collecting flow guide inner pipe (8), the helical directions of the longitudinally adjacent two flow guide mixing sheets (803) are opposite, the mixing disc (901) is formed by the abutment of an upper air penetrating plate (9011) and a lower air penetrating plate (9012) through an annular frame, two groups of annularly distributed rectangular through holes are formed in the upper air penetrating plate (9011) and the lower air penetrating plate (9012), the two groups of rectangular through holes are an inner circle through hole group and an outer circle through hole group, an upper through hole inclined plate (9013) is fixedly connected to the upper side of the rectangular through hole of the upper air penetrating plate (9011), the upper through hole inclined plate (9013) is arranged in an inclined mode, and the direction of the upper through hole inclined plate (9013) of the outer circle through hole group is opposite to that of the upper through hole inclined plate (9013) of the inner circle through hole group.

2. An ultra-low emission combustion apparatus for exhaust gas treatment according to claim 1, wherein The inside bottom center of the conical mixing chamber (103) is connected to an inner helical connector (1031) through a support, the lower end of the mixing connecting shaft (9) is provided with a thread, and the lower end threaded part of the mixing connecting shaft (9) is screw-connected to the inner helical connector (1031).

3. An ultra-low emission combustor for exhaust gas treatment according to claim 1, wherein The lower air passing inclined plate (9014) is fixedly connected above the rectangular air passing hole of the lower air passing plate (9012) and is obliquely arranged, and the direction of the lower air passing inclined plate (9014) is opposite to that of the upper air passing inclined plate (9013) directly above the lower air passing inclined plate (9014).

4. An ultra-low emission combustor for exhaust gas treatment according to claim 3, wherein The waste gas mixing frame (902) is made of an inner spiral plate (9021) and an outer spiral plate (9022) combined by welding, the outer spiral plate (9022) is located outside the inner spiral plate (9021), and the inner spiral plate (9021) and the outer spiral plate (9022) are both curled to be spiral-shaped, and the spiral directions of the inner spiral plate (9021) and the outer spiral plate (9022) are opposite.

5. An ultra-low emission combustion apparatus for exhaust gas treatment according to claim 1, wherein The jet pipe (1002) is fixedly connected with a pipe-in mixed sheet (1003) inside, the pipe-in mixed sheet (1003) is a spiral sheet, the spiral directions of adjacent pipe-in mixed sheets (1003) are opposite, the upper end of the jet pipe (1002) is fixedly connected with a microporous jet head (1005), and the microporous jet head (1005) is densely and perforated with air holes.

6. An ultra-low emission combustion apparatus for exhaust gas treatment according to claim 5, wherein A one-way air valve (1004) is arranged between the microporous jet head (1005) and the pipe-in mixed sheet (1003), and the air outlet of the one-way air valve (1004) faces the microporous jet head (1005).

7. An ultra-low emission combustion apparatus for exhaust gas treatment according to claim 1, wherein The gas collecting pipe (104) is fixedly connected with an auxiliary quality input pipe (7), one end of the auxiliary quality input pipe (7) inside the gas collecting pipe (104) is connected with two shunt discs (701).

8. An ultra-low emission combustion apparatus for exhaust gas treatment according to claim 7, wherein Four dispersion jet pipes (702) are arranged outside the shunt disc (701), and the dispersion jet pipes (702) are connected with dispersion nozzles (703).

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