Waste gas combustion purification device

Abstract

The utility model relates to the technical field of environmental protection equipment, in particular to a waste gas combustion and purification device, which comprises a combustion chamber, a gas inlet pipe, a gas outlet pipe, a gas inlet pipe, a gas outlet pipe, a gas inlet pipe and a gas outlet pipe, the perforated plate is fixedly arranged on the inner wall of the combustion chamber and is matched with the radial section of an inner cavity of the combustion chamber in shape; the flow guide pipe is fixedly arranged between the perforated plate and the air outlet pipe, the circumferential outer edge of a top port of the flow guide pipe is attached to the circumferential inner wall of the combustion chamber, the inner diameter of a bottom port of the flow guide pipe is smaller than that of the top port of the flow guide pipe, and the air guide flow channel of the shell body communicates with a cavity between the flow guide pipe and the perforated plate. According to the device, the trumpet-shaped flow guide pipe is arranged between the porous plate and the gas outlet pipe, so that the flow speed of second mixed gas is increased, turbulent flow is promoted to be generated, then the mixing effect of combustible waste gas, air and combustible gas is enhanced, and the problem that the mixing effect of natural gas and mixed gas is poor in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to environmental protection equipment technical field, especially a kind of waste gas combustion purification device. BACKGROUND

[0002] Combustible waste gas is generally contained in the waste gas discharged by semiconductor process, and if it is directly discharged without treatment, it will not only cause serious pollution to the environment, but also bring great safety hazards to people. Therefore, users usually use combustible waste gas treatment device to treat the combustible waste gas generated in the process of semiconductor production.

[0003] In the prior art, a kind of heat treatment combustible waste gas combustion purification device is proposed in Chinese utility model patent with authorization announcement No.CN222143077U, it includes combustion cylinder, its characterized in that, one end of the combustion cylinder is communicated with air inlet pipe, other end is communicated with exhaust pipe;The ignition assembly for igniting combustible waste gas is arranged in the combustion cylinder;Metal ring is arranged in the combustion cylinder, and the metal ring is located above the ignition assembly, for the combustion purification treatment of combustible waste gas.

[0004] However, in the process of using the device to treat toxic waste gas, the natural gas stored in the gas storage tank enters the combustion cylinder through the conveying pipeline and the ignition burner in turn, and after simple mixing with the mixed gas in the combustion cylinder, the mixed gas is ignited by the ignition burner to achieve the purpose of combustion purification treatment of combustible waste gas. There is a problem that the mixing effect of natural gas and mixed gas is poor, which can easily lead to insufficient combustion of combustible waste gas. UTILITY MODEL CONTENTS

[0005] In view of the technical problem of poor mixing effect of natural gas and mixed gas in the prior art, the utility model embodiment provides a waste gas combustion purification device, characterized by comprising:

[0006] Combustion chamber, fixedly arranged in the inside of shell main body, the inside of combustion chamber is formed with airtight cavity;

[0007] The air inlet pipe of shell main body is communicated with the top of the inner chamber of combustion chamber, and the air outlet pipe of shell main body is communicated with the bottom of the inner chamber of combustion chamber;

[0008] Perforated plate, fixedly arranged on the inner wall of combustion chamber, the perforated plate is arranged along the radial direction of combustion chamber, and the perforated plate is matched with the radial cross-sectional shape of the inner chamber of combustion chamber;

[0009] Flow guide pipe, fixedly arranged between perforated plate and air outlet pipe, the circumferential outer edge of the top port of flow guide pipe is matched with the circumferential inner wall of combustion chamber, the inner diameter of the bottom port of flow guide pipe is smaller than the inner diameter of the top port of flow guide pipe, and the air guide flow channel of shell main body is communicated with the cavity between flow guide pipe and perforated plate.

[0010] Further, the inner cavity of the air guide hole of the porous plate is in a trumpet shape, and the inner diameter of the bottom port of the air guide hole is smaller than the inner diameter of the top port of the air guide hole.

[0011] Further, the plurality of groups of exhaust holes are further included.

[0012] The porous plate is a hollow plate, the inner cavity of the porous plate is not communicated with the air guide hole of the porous plate, and the inner cavity of the porous plate is communicated with the air guide flow channel of the shell body.

[0013] The plurality of groups of exhaust holes are arranged at the bottom of the porous plate, and any exhaust hole is communicated with the inner cavity of the porous plate.

[0014] Further, any group of exhaust holes is distributed around the bottom port of any air guide hole of the porous plate.

[0015] Further, the shell body comprises:

[0016] The top cover is fixedly arranged at the top port of the combustion chamber, and the output end of the air inlet pipe is communicated with the top of the inner cavity of the combustion chamber through the top cover.

[0017] The base is fixedly arranged at the bottom port of the combustion chamber, and the input end of the air outlet pipe is communicated with the bottom of the inner cavity of the combustion chamber through the base.

[0018] The assembly shell is fixedly sleeved on the circumferential side wall of the combustion chamber, and the cavity between the assembly shell and the combustion chamber is an assembly cavity.

[0019] The heat treatment assembly is arranged in the interior of the shell body, the heat treatment assembly is connected with the combustion chamber, and is used for burning and purifying the combustible exhaust gas.

[0020] The air guide assembly is arranged on the base, the air guide assembly is connected with the top cover, and is used for transmitting air and combustible gas.

[0021] Further, the heat treatment assembly comprises:

[0022] The ignition device is fixedly arranged on the inner wall of the combustion chamber, and the position of the ignition device matches the bottom port of the flow guide pipe.

[0023] The heater is fixedly arranged in the assembly cavity, and is used for heating the inner cavity of the combustion chamber.

[0024] Further, the air guide assembly comprises:

[0025] The inner side shell is arranged between the top cover and the base, the bottom end of the inner side shell is fixedly connected with the base, the top end of the inner side shell is fixedly connected with the top cover, the assembly shell and the combustion chamber are located in the inner cavity of the inner side shell, and the cavities between the inner side shell, the assembly shell and the combustion chamber are combined to form the air guide flow channel.

[0026] A plurality of first interfaces are fixedly arranged at the bottom of the base, and output ends of the plurality of first interfaces are communicated with the air guide channel and used for transmitting combustible gas.

[0027] An outer shell is arranged on the base, a top end of the outer shell is connected with the top end cover, and an inner cavity of the outer shell is formed with a sealed cavity.

[0028] A plurality of second interfaces are fixedly arranged at the bottom of the base, output ends of the second interfaces are communicated with the cavity between the outer shell and the inner shell, and the second interfaces are used for transmitting air.

[0029] A plurality of air inlet holes are arranged on the inner shell, and each air inlet hole is communicated with the air guide channel through an outer wall of the inner shell and is used for transmitting air.

[0030] Further, the air guide channel is filled with ceramic chips.

[0031] Further, the air guide assembly further comprises an adjusting mechanism arranged on the inner shell, the adjusting mechanism is connected with the outer shell, and the adjusting mechanism is used for adjusting the maximum air guide flow of the plurality of air inlet holes.

[0032] Further, the adjusting mechanism comprises:

[0033] A sleeve is movably sleeved on the inner shell, and the sleeve is located in the cavity between the inner shell and the outer shell.

[0034] A first thread is arranged on a circumferential side wall of the inner shell.

[0035] A second thread is fixedly arranged on a circumferential inner wall of the sleeve, and the second thread is engaged with the first thread.

[0036] A plurality of guide grooves are arranged on a circumferential side wall of the sleeve, and each guide groove is arranged along an axial direction of the sleeve.

[0037] A plurality of guide protrusions are fixedly arranged on a circumferential inner wall of the outer shell, and the plurality of guide protrusions are respectively slidably connected with the plurality of guide grooves.

[0038] A bottom end of the outer shell is rotatably connected with the base, and a top end of the outer shell is rotatably connected with the top end cover.

[0039] The waste gas combustion purification device has the following beneficial effects: the device is provided with a horn-shaped flow guide pipe between the porous plate and the gas outlet pipe, combustible waste gas, air and combustible gas are mixed in the mixing cavity to form second mixed gas, and then the second mixed gas flows into the combustion cavity through the flow guide pipe, the flow speed of the second mixed gas is increased by the flow guide pipe, a significant speed gradient is formed between the second mixed gas and the gas in the combustion cavity, turbulence is generated, the mixing effect of the combustible waste gas, the air and the combustible gas is enhanced, the combustible waste gas, the air and the combustible gas are combusted more fully after being ignited, and the problem of poor mixing effect of natural gas and mixed gas in the prior art is solved.

[0040] It is to be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further explanation of the subject technology claimed. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 It is a whole sectional view according to the embodiment one of the utility model;

[0042] Figure 2 It is the inside structure schematic view of the porous plate according to the utility model;

[0043] Figure 3 It is a whole sectional view according to the embodiment two of the utility model;

[0044] Figure 4 It is Figure 3 It is the local amplification schematic view of A area in the middle;

[0045] Figure 5 It is the parts drawing of the sleeve according to the embodiment two of the utility model.

[0046] BRIEF DESCRIPTION OF DRAWINGS

[0047] 1-combustion chamber, 2-porous plate, 21-air guide hole, 22-exhaust hole, 23-air guide interface, 3-flow guide pipe, 4-outer shell main body, 41-air inlet pipe, 42-air outlet pipe, 43-top end cover, 44-base, 45-assembly shell, 461-ignition device, 462-heater, 471-inner side shell, 472-first interface, 473-outer side shell, 474-second interface, 475-air inlet hole, 4761-sleeve, 4762-first thread, 4763-second thread, 4764-guide groove, 4765-guide protruding block, 477-air guide flow channel. DETAILED DESCRIPTION

[0048] The preferred embodiments of the utility model will be described in detail below with reference to the drawings, and the utility model will be further described.

[0049] The foregoing and other technical contents, features and effects of the present application will be clearly presented in the following detailed description of the embodiments with reference to the accompanying drawings. The directions mentioned in the following embodiments, such as up, down, left, right, front or back, are only the directions of the drawings. Therefore, the directions used are used for illustration and not for limitation of the present application. In addition, the same reference numerals represent the same elements in all embodiments.

[0050] Firstly, the waste gas combustion purification device according to the embodiments of the present application will be described in combination with Figures 1-5 The waste gas combustion purification device according to the embodiments of the present application is used for combustion purification treatment of combustible waste gas, and has wide application scenarios.

[0051] Embodiment one

[0052] Specifically, as shown in Figure 1 , the waste gas combustion purification device according to the embodiments of the present application comprises a combustion chamber 1, a shell main body 4, an air inlet pipe 41, an air outlet pipe 42, a porous plate 2 and a flow guide pipe 3. The combustion chamber 1 is fixedly arranged in the interior of the shell main body 4, and a sealed cavity is formed in the interior of the combustion chamber 1. The air inlet pipe 41 of the shell main body 4 is in communication with the top of the inner cavity of the combustion chamber 1, and the air outlet pipe 42 of the shell main body 4 is in communication with the bottom of the inner cavity of the combustion chamber 1.

[0053] The porous plate 2 is fixedly arranged on the inner wall of the combustion chamber 1, and the porous plate 2 is arranged along the radial direction of the combustion chamber 1. The porous plate 2 is matched with the radial cross-sectional shape of the inner cavity of the combustion chamber 1. The flow guide pipe 3 is fixedly arranged between the porous plate 2 and the air outlet pipe 42. The circumferential outer edge of the top port of the flow guide pipe 3 is matched with the circumferential inner wall of the combustion chamber 1. The inner diameter of the bottom port of the flow guide pipe 3 is smaller than the inner diameter of the top port of the flow guide pipe 3. The air guide flow channel 477 of the shell main body 4 is in communication with the cavity between the flow guide pipe 3 and the porous plate 2.

[0054] Further, as shown in Figure 1 , 2 , the inner cavity shape of the air guide hole 21 of the porous plate 2 is trumpet-shaped, and the inner diameter of the bottom port of the air guide hole 21 is smaller than the inner diameter of the top port of the air guide hole 21. In this embodiment, the device disperses the combustible waste gas in the cavity between the porous plate 2 and the flow guide pipe 3 (i.e. the mixing cavity) into multiple air flows by arranging the porous plate 2 with multiple trumpet-shaped air guide holes 21 in the combustion chamber 1, thereby enhancing the mixing effect of the combustible waste gas and the first mixed gas in the mixing cavity.

[0055] Further, as shown in Figure 1 , 2As shown, the device further comprises a plurality of groups of exhaust holes 22, the plurality of groups of exhaust holes 22 are arranged on the bottom of the porous plate 2, the porous plate 2 is a hollow plate, the inner cavity of the porous plate 2 is not communicated with the gas guide hole 21 of the porous plate 2, the inner cavity of the porous plate 2 is communicated with the gas flow channel 477 of the shell body 4, the exhaust hole 22 is communicated with the inner cavity of the porous plate 2, and the sum of the bottom port areas of the plurality of gas guide holes 21 arranged on the porous plate 2 is less than the radial cross-sectional area of the air inlet pipe 41, preferably, the porous plate 2 in the embodiment; the device improves the flow rate of the combustible exhaust gas flowing into the mixing chamber through the gas guide hole 21 by arranging the porous plate 2 with a plurality of horn-shaped gas guide holes 21 in the combustion chamber 1, and forms a low-pressure area near the bottom port of the flow guide hole by using the high-speed jet flow formed by the combustible exhaust gas, so as to drag the first mixed gas flowing out of the exhaust hole 22 to mix with the combustible exhaust gas, thereby strengthening the mixing effect of the combustible exhaust gas and the first mixed gas in the mixing chamber; secondly, the device adopts the porous plate 2 with a hollow structure, and the inner cavity of the porous plate 2 is not communicated with the gas guide hole 21, so that a plurality of interlaced channels are formed in the inner cavity of the porous plate 2, thereby enhancing the mixing effect of the combustible gas and the air in the inner cavity of the porous plate 2.

[0056] Further, as shown in Figure 1 、 2 , any group of exhaust holes 22 is composed of a plurality of exhaust holes 22 and is distributed around the bottom port of the gas guide hole 21 of the porous plate 2.

[0057] Embodiment two

[0058] The embodiment of the utility model discloses the further disclosure of shell body 4 on the basis of embodiment one, specifically, as shown in Figure 3 、 4 , the shell body 4 comprises: top end cover 43, base 44, assembly shell 45, heat treatment assembly and gas guide assembly;Wherein top end cover 43 is fixedly arranged at the top port of combustion chamber 1, and the output end of air inlet pipe 41 is communicated with the inner cavity top of combustion chamber 1 through top end cover 43, and combustible exhaust gas is input into the inner cavity of combustion chamber 1 through air inlet pipe 41;

[0059] Base 44 is fixedly arranged at the bottom port of combustion chamber 1, and the input end of air outlet pipe 42 is communicated with the inner cavity bottom of combustion chamber 1 through base 44, and the mixed gas after combustion and purification treatment is discharged through air outlet pipe 42;Assembly shell 45 is fixedly sleeved on the circumferential side wall of combustion chamber 1, and the cavity between assembly shell 45 and combustion chamber 1 is assembly cavity (not shown in the figure);Heat treatment assembly is arranged in the inside of shell body 4, and heat treatment assembly is connected with combustion chamber 1, and is used for burning and purifying combustible exhaust gas;Gas guide assembly is arranged on base 44, and gas guide assembly is connected with top end cover 43, and is used for transmitting air and combustible gas.

[0060] Further, as shown in Figure 3 ,4 The heat treatment assembly includes an ignition device 461 and a heater 462. The ignition device 461 is fixedly arranged on the inner wall of the combustion chamber 1 and matches the position of the bottom port of the flow guide pipe 3. The heater 462 is fixedly arranged in the assembly cavity and used for heating the inner cavity of the combustion chamber 1.

[0061] Further, as shown in Figure 2 , 3 , 4, the air guide assembly includes an inner shell 471, a first interface 472, an outer shell 473, a second interface 474, and an air inlet hole 475. The inner shell 471 is arranged between the top end cover 43 and the base 44. The bottom end of the inner shell 471 is fixedly connected with the base 44, and the top end of the inner shell 471 is fixedly connected with the top end cover 43. The assembly shell 45 and the combustion chamber 1 are located in the inner cavity of the inner shell 471. The cavity between the inner shell 471 and the assembly shell 45 and the combustion chamber 1 combines to form an air flow channel 477. In this embodiment, a plurality of air guide interfaces 23 are arranged on the circumferential side wall of the porous plate 2 and communicate with the inner cavity of the porous plate 2. The air inlet end of each air guide interface 23 communicates with the air flow channel 477. A plurality of first interfaces 472 are fixedly arranged on the bottom of the base 44. The output ends of the first interfaces 472 communicate with the air flow channel 477 and are used for transmitting combustible gas. The outer shell 473 is arranged on the base 44. The top end of the outer shell 473 is connected with the top end cover 43. The inner part of the outer shell 473 forms a sealed cavity. The inner shell 471 is located in the inner cavity of the outer shell 473. A plurality of second interfaces 474 are fixedly arranged on the bottom of the base 44. The output end of the second interface 474 communicates with the cavity between the outer shell 473 and the inner shell 471 and is used for transmitting air. A plurality of air inlet holes 475 are arranged on the inner shell 471. Any air inlet hole 475 penetrates the outer wall of the inner shell 471 and communicates with the air flow channel 477 and is used for transmitting air.

[0062] Further, as shown in Figure 3 , 4 , the air flow channel is filled with ceramic chips. In this embodiment, one of the purposes of filling the air flow channel with ceramic chips is to store the heat energy generated by the heater 462 and the second mixed gas combustion process, preheat the air and the combustible gas flowing through the air flow channel, and improve the combustion effect of the second mixed gas. Another purpose is to form interlaced channels in the air flow channel 477 by the gaps between the ceramic chips, thereby enhancing the mixing effect of the air and the combustible gas.

[0063] Further, as shown in Figure 3 , 4As shown, the air guide assembly further comprises: an adjusting mechanism arranged on the inner side shell 471, the adjusting mechanism is connected with the outer side shell 473, and the adjusting mechanism is used for adjusting the maximum air flow of the plurality of air inlet holes 475.

[0064] Further, as shown, Figures 3-5 The adjusting mechanism comprises: a sleeve 4761, a first thread 4762, a second thread 4763, a guide groove 4764, a guide block 4765, and the outer side shell 473. The sleeve 4761 movably sleeves the inner side shell 471 and is located in the cavity between the inner side shell 471 and the outer side shell 473. The first thread 4762 is arranged on the circumferential side wall of the inner side shell 471. The second thread 4763 is fixedly arranged on the circumferential inner wall of the sleeve 4761 and is engaged with the first thread 4762. The plurality of guide grooves 4764 are arranged on the circumferential side wall of the sleeve 4761, and each guide groove 4764 is arranged along the axial direction of the sleeve 4761. The plurality of guide blocks 4765 are fixedly arranged on the circumferential inner wall of the outer side shell 473 and are respectively connected with the plurality of guide grooves 4764 in a sliding manner. The bottom end of the outer side shell 473 is rotatably connected with the base 44, and the top end of the outer side shell 473 is rotatably connected with the top end cover 43.

[0065] In this embodiment, the user can rotate the outer side shell 473 to drive the plurality of guide blocks 4765 arranged on the inner wall of the outer side shell 473 to rotate, and drive the sleeve to rotate synchronously by the sliding cooperation between the guide blocks 4765 and the guide grooves 4764. In the process of rotating the sleeve, the pipeline is lifted along the circumferential direction of the inner side shell 471 by the thread cooperation between the first thread 4762 and the second thread 4763, so as to adjust the opening number of the air inlet holes 475, and finally achieve the purpose of adjusting the maximum air flow of the plurality of air inlet holes 475.

[0066] When the device is running, the heater 462 heats the inner cavity of the combustion chamber 1, the combustible exhaust gas is input into the top of the inner cavity of the combustion chamber 1 through the air inlet pipe 41, at the same time, the external device inputs the combustible gas into the cavity (i.e. the gas guide channel 477) between the outer shell 473 and the inner shell 471 through the first interface 472, and the external device inputs the air into the cavity between the inner shell 471 and the outer shell 473 through the second interface 474, and makes it enter the gas guide channel 477 through the air inlet hole 475 to mix with the combustible gas to form the first mixed gas, the first mixed gas flows along the gas guide channel 477 to the inner cavity of the porous plate 2 and finally flows out to the cavity between the porous plate 2 and the flow guide pipe 3 through the air outlet hole 22, in the process, the combustible exhaust gas input into the combustion chamber 1 through the air inlet pipe 41 flows into the mixing cavity (i.e. the mixing cavity) through the gas guide hole 21 of the porous plate 2, and mixes with the first mixed gas in the mixing cavity to form the second mixed gas, the second mixed gas flows out to the cavity (i.e. the combustion cavity) between the flow guide pipe 3 and the base 44 through the bottom port of the flow guide pipe 3, in the process, the second mixed gas flows through the ignition device 461 and is ignited by the ignition device 461 to achieve the combustion purification treatment of the second mixed gas mixed with the combustible exhaust gas, and the gas after the combustion purification treatment is discharged through the air outlet pipe 42.

[0067] The above, with reference to Figures 1-5 The waste gas combustion purification device according to the embodiment of the utility model is described, have the following beneficial effect: the device is through setting up the horn-shaped flow guide pipe 3 between the porous plate 2 and the air outlet pipe 42, after the combustible exhaust gas, air and combustible gas three in the mixing cavity mix to form the second mixed gas, in the process of flowing into the combustion cavity through the flow guide pipe 3, the flow guide pipe 3 is used to improve the flow velocity of the second mixed gas, the second mixed gas and the gas in the combustion cavity form significant velocity gradient, promote the turbulent flow to generate, and then enhance the mixing effect of combustible exhaust gas and air and combustible gas, make it burn more fully after being ignited, solve the problem of poor mixing effect of natural gas and mixed gas in the prior art.

[0068] It should be noted that in the present specification, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without more limitations, the elements defined by the statement "include" do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0069] Although the content of the utility model has been introduced in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the utility model. After reading the above content, various modifications and substitutions of the utility model will be obvious to those skilled in the art. Therefore, the protection scope of the utility model should be limited by the attached claims.

Claims

1. A waste gas combustion purification device, characterized in that, Include: The combustion chamber is fixedly disposed inside the outer shell body, and the interior of the combustion chamber forms a sealed cavity; The air intake pipe of the outer shell body is connected to the top of the inner cavity of the combustion chamber, and the air outlet pipe of the outer shell body is connected to the bottom of the inner cavity of the combustion chamber. A perforated plate is fixedly disposed on the inner wall of the combustion chamber, the perforated plate is arranged radially along the combustion chamber, and the perforated plate matches the radial cross-sectional shape of the inner cavity of the combustion chamber; A guide tube is fixedly disposed between the perforated plate and the exhaust pipe. The outer circumferential edge of the top port of the guide tube is in contact with the inner circumferential wall of the combustion chamber. The inner diameter of the bottom port of the guide tube is smaller than the inner diameter of the top port of the guide tube. The airflow channel of the outer shell body is connected to the cavity between the guide tube and the perforated plate.

2. The waste gas combustion purification device as described in claim 1, characterized in that, The inner cavity of the air guide hole of the porous plate is funnel-shaped, and the inner diameter of the bottom port of the air guide hole is smaller than the inner diameter of the top port of the air guide hole.

3. The waste gas combustion purification device as described in claim 1, characterized in that, It also includes several sets of exhaust ports; The perforated plate is a hollow plate, and the inner cavity of the perforated plate is not connected to the air guide hole of the perforated plate, but the inner cavity of the perforated plate is connected to the air guide channel of the outer shell body. The plurality of vent holes are formed at the bottom of the porous plate, and any one of the vent holes is connected to the inner cavity of the porous plate.

4. The waste gas combustion purification device as described in claim 3, characterized in that, Any group of the exhaust holes is distributed around the bottom port of one of the air guide holes of the perforated plate.

5. The waste gas combustion purification device as described in claim 1, characterized in that, The outer shell body comprises: A top end cap is fixedly installed at the top port of the combustion chamber, and the output end of the intake pipe passes through the top end cap and communicates with the top of the inner cavity of the combustion chamber. The base is fixedly installed at the bottom port of the combustion chamber, and the input end of the exhaust pipe passes through the base and communicates with the bottom of the inner cavity of the combustion chamber. An assembly housing is fixedly sleeved on the circumferential side wall of the combustion chamber, and the cavity between the assembly housing and the combustion chamber is an assembly cavity; A heat treatment assembly is disposed inside the main body of the outer casing, and the heat treatment assembly is connected to the combustion chamber for combustion purification of combustible waste gas. A gas guiding assembly is disposed on the base and connected to the top end cap for transmitting air and combustible gas.

6. The waste gas combustion purification device as described in claim 5, characterized in that, The heat treatment assembly includes: An ignition device is fixedly installed on the inner wall of the combustion chamber, and the position of the ignition device matches the bottom port of the guide tube; A heater is fixedly installed in the assembly cavity and is used to heat the inner cavity of the combustion chamber.

7. The waste gas combustion purification device as described in claim 5, characterized in that, The air guiding assembly includes: An inner housing is disposed between the top end cap and the base. The bottom end of the inner housing is fixedly connected to the base, and the top end of the inner housing is fixedly connected to the top end cap. The assembly housing and the combustion chamber are both located in the inner cavity of the inner housing. The cavity between the inner housing, the assembly housing, and the combustion chamber forms the airflow channel. Several first interfaces are fixedly disposed at the bottom of the base, and the output ends of the several first interfaces are all connected to the airflow channel for transmitting the combustible gas; An outer shell is disposed on the base, the top end of the outer shell is connected to the top end cap, a sealed cavity is formed inside the outer shell, and the inner shell is located in the inner cavity of the outer shell; Several second interfaces are fixedly disposed at the bottom of the base. The output end of the second interface is connected to the cavity between the outer shell and the inner shell for transmitting air. Several air inlets are formed on the inner housing. Any one of the air inlets penetrates the outer wall of the inner housing and communicates with the airflow channel to transmit the air.

8. The waste gas combustion purification device as described in claim 7, characterized in that, The airflow channel is filled with broken porcelain pieces.

9. The waste gas combustion purification device as described in claim 7, characterized in that, The air guiding assembly further includes: an adjustment mechanism disposed on the inner housing, the adjustment mechanism being connected to the outer housing, for adjusting the maximum air guiding flow of the plurality of air inlets.

10. The waste gas combustion purification device as described in claim 9, characterized in that, The adjustment mechanism includes: A sleeve is movably fitted onto the inner shell, and the sleeve is located in the cavity between the inner shell and the outer shell; The first thread is formed on the circumferential sidewall of the inner housing; The second thread is fixedly disposed on the circumferential inner wall of the sleeve, and the second thread engages with the first thread; Several guide grooves are formed on the circumferential sidewall of the sleeve, and any one of the guide grooves is arranged along the axial direction of the sleeve; Several guide protrusions are fixedly disposed on the circumferential inner wall of the outer shell, and the several guide protrusions are slidably connected to the several guide grooves respectively; The bottom end of the outer shell is rotatably connected to the base, and the top end of the outer shell is rotatably connected to the top end cap.

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