Harmless odor treatment device

Abstract

The utility model relates to a harmless treatment device for odor. The harmless treatment device comprises an odor incinerator and a control system, the odor incinerator comprises a combustor, a hearth and a chimney and is divided into a high-temperature flue gas section, a high-low temperature mixing section, an incineration section and an incineration extension section from bottom to top. The combustor comprises a combustion chamber, an air inlet door, an automatic flame spraying ignition gun and a combustor spray gun, and the combustion chamber adopts a secondary air distribution design, so that a control system can control the reaction temperatures of the four sections only by controlling the fuel gas flow and the air flow of the combustor, and decomposition of the odor can be completed by using a small amount of fuel gas. Compared with original torch incineration, energy can be saved by 90% or above, the odor treatment efficiency reaches 99.99%, energy conservation and environmental protection are achieved, control is convenient and reliable, investment is greatly saved due to the sectional design and the manufacturing mode, and good industry prospects are achieved.

Description

Technical Field

[0001] The utility model relates to a waste gas treatment device, in particular to a odor harmless treatment device. Background Art

[0002] The statements in this section only provide background information related to the present disclosure, and these statements may constitute prior art. In the process of implementing the present utility model, the inventor found that there are at least the following problems in the prior art.

[0003] At present, the odor (waste gas) of some projects contains methyl mercaptan. If these odors are discharged directly, they will cause great pollution to the atmosphere. In recent years, many domestic manufacturers have not paid attention to the treatment of the above pollutants or cannot find a suitable treatment solution, which has caused pollution to the surrounding environment and eventually stopped production or changed production. Therefore, the control of the above pollution problems in production is the key to ensure that the product can be produced normally and meet market demand.

[0004] Currently, there are two main methods for treating the above-mentioned odor.

[0005] The first is to use torch incineration, that is, to burn inside the torch. However, the torch incineration of odor requires a large amount of natural gas to assist combustion to achieve the incineration effect. If a large amount of natural gas is not used to assist combustion when burning odor with a torch, the odor cannot be treated to a qualified standard, and the odor in the device area still cannot meet the emission standards. The fuel gas consumption required for torch incineration is very large. According to statistics, it needs to consume about 5000Nm3 / h of fuel gas, and it cannot guarantee complete incineration. The odor detection in the device area exceeds the emission standard.

[0006] The second is the regenerative incineration for low-flow odor. For example, the patent application number 201520500995.8, "Sodium Methyl Mercaptan Waste Gas Treatment Combustion Furnace", uses a furnace body composed of a premixed combustion chamber, a regenerative chamber, and a wind distribution and cooling chamber. The premixed combustion chamber is connected to the sodium methyl mercaptan waste gas pipe, and the burner is used for full combustion to achieve the purpose of environmental protection treatment of sodium methyl mercaptan production waste gas. However, the use of this type of regenerative incineration of odor consumes a lot of fuel gas, especially the incineration effect is not good. The odor cannot be effectively decomposed in the above structure, and cannot meet environmental protection requirements.

[0007] In order to improve the incineration effect so that the discharged odor can meet environmental protection requirements, such as the patent application number 201880083076.1, the name of which is "Method and equipment for burning malodorous gases", first generate a primary combustion gas (including nitrogen-containing and sulfur-containing compounds) with a temperature of at least 450°C and containing oxygen; then supply the primary fuel and the primary combustion gas to the primary process area of ​​the furnace; then supply the tertiary combustion gas to the secondary process area of ​​the furnace; finally, move the primary fuel, the primary combustion gas, and / or their reaction products from the primary process area via the secondary process area to the tertiary process area of ​​the furnace, and supply the quaternary combustion gas containing oxygen to the tertiary process area of ​​the furnace. The above method attempts to fully decompose the odor during incineration by setting up multiple incineration structures and areas. However, its structure is very complicated. The transmission pipeline alone includes the primary, first, second, third and fourth pipelines, as well as the furnaces, evaporators, digesters, strippers and combustion gas heaters, compressors, etc. in the primary, secondary and tertiary process areas. The equipment investment is large, the operation is complicated, and the electricity consumption is relatively high. It is not suitable for the treatment of low-flow odor.

[0008] The process of treating methyl mercaptan odor by other methods is also complicated and uneconomical. Summary of the invention

[0009] In view of the above problems, the purpose of the present invention is to solve some of the problems in the prior art, or at least alleviate these problems.

[0010] A device for harmless treatment of odor, comprising:

[0011] An odor incinerator comprises a furnace, a chimney and a burner, all of which have linings on the inner walls; the space of the odor incinerator is divided into four sections from bottom to top, including a high-temperature flue gas section, a high-temperature and low-temperature mixing section, an incineration section and an incineration extension section; an odor inlet is arranged on the furnace wall of the high-temperature and low-temperature mixing section; the high-temperature flue gas section is located in the combustion chamber of the burner at the lower end of the furnace, and the incineration extension section is located in the chimney at the upper end of the furnace; a primary air distribution channel and a plurality of secondary air distribution channels are arranged at the lower end of the combustion chamber, the central axis of the primary air distribution channel is consistent with the central axis of the lower end of the combustion chamber, and the plurality of secondary air distribution channels are arranged in a ring wall manner around the circumferential direction of the central axis of the combustion chamber; the combustion mechanism of the burner cooperates with the primary air distribution channel and the secondary air distribution channel, and burns in the combustion chamber to generate high-temperature flue gas;

[0012] A control system is used to control and monitor the odor incinerator.

[0013] The reaction temperatures of the high-temperature flue gas section, the combustion section and the combustion extension section are controlled by controlling the fuel gas flow rate and the air flow rate of the burner;

[0014] Preferably, the combustion reaction temperature of the combustion chamber is greater than 1500°C to generate high-temperature flue gas; the reaction temperature of the incineration section is controlled at 600-850°C; and the reaction temperature of the incineration extension section is controlled at 600-750°C.

[0015] Furthermore, the lining of the combustion chamber adopts a two-layer structure, including a refractory lining and a lining metal; the lining of the incineration section adopts a single-layer refractory lining; and the lining of the chimney adopts a heat-insulating refractory lining.

[0016] Optionally, the combustion mechanism of the burner includes an ignition gun, a burner spray gun and at least one air inlet door; the air inlet door is used to supply air to the primary air distribution channel and the secondary air distribution channel; the combustion chamber is provided with a throat reduction above the primary air distribution channel, and the ignition gun and the burner spray gun are located at the throat reduction; the burner spray gun is connected to the fuel gas pipeline through the control system.

[0017] Furthermore, the air inlet door is provided with an adjusting air door baffle; and the ignition gun is an automatic flame spray ignition gun.

[0018] Furthermore, a plurality of high legs are provided below the odor incinerator for support.

[0019] Furthermore, the incineration section is provided with a temperature measuring instrument to accurately measure the incineration temperature of the incineration section; the top of the chimney is provided with a rain cap; the chimney is provided with a wind breaking plate or a wind breaking ring; the odor inlet is provided with a turbulence ring.

[0020] The chimney adopts a self-supporting structure and is designed in sections; the chimney is a chimney with a large diameter.

[0021] The control system includes a valve group and a control cabinet; the valve group adopts a distributed control system in the user control room.

[0022] The odor harmless treatment device also includes a sampling platform arranged outside the odor incinerator.

[0023] The utility model has the following beneficial effects:

[0024] 1. The odor incinerator of the present application adopts a four-stage design. While setting the temperature of the four stages, it is also adapted to the secondary air distribution scheme of the burner. Only a small amount of fuel gas needs to be controlled to complete the decomposition of the odor. The operation is convenient and reliable, energy-saving and environmentally friendly, and the incineration efficiency is high. A throat reduction is set at the corresponding position of the primary air inlet to ensure that the primary air and fuel gas are evenly mixed and the combustion is stable. The lining is also improved and coordinated accordingly, so that the equipment can operate safely for a long period of time while decomposing the odor;

[0025] 2. The odor treatment device of the present application is more energy-efficient: under the same odor incineration efficiency, compared with the original torch incineration, the energy saving can reach more than 90%;

[0026] 3. The efficiency of odor treatment is higher, reaching 99.99%;

[0027] 4. The control of the odor treatment device is convenient and reliable: the odor treatment incineration device can meet the effect of one-button ignition and automatic temperature control operation;

[0028] 5. Lower initial investment: The segmented design and manufacturing make the investment of the odor incineration device of the present application lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above structure of the present invention can be further illustrated by the non-limiting embodiments given in the following drawings.

[0030] Figure 1 It is the work flow chart of the utility model;

[0031] Figure 2 This is a schematic diagram of the structure of the odor incinerator;

[0032] Figure 3 is a schematic diagram of a burner;

[0033] Figure 4 Schematic diagram designed for the four sections of this application;

[0034] Figure 5 is a schematic diagram of the outrigger;

[0035] Figure 6 This is a schematic diagram of the incineration section.

[0036] Among them: 1-odor incinerator; 2-burner; 3-chimney; 4-legs; 5-odor inlet; 6-high and low temperature mixing section; 7-incineration section; 8-combustion chamber; 9-air inlet door; 10-control system; 11-rain cap; 12-primary air distribution channel; 13-secondary air distribution channel; 14-sampling platform; 15-throat reduction; 16-adjusting air door baffle; 17-ignition gun; 18-burner spray gun. DETAILED DESCRIPTION

[0037] The present invention is further described below in conjunction with the accompanying drawings. The embodiments of the present invention are only used to illustrate the present invention rather than to limit the present invention. Without departing from the technical concept of the present invention, various substitutions and changes can be made based on common technical knowledge and customary means in the field, which should all be included in the scope of the present invention.

[0038] In order to solve the defects of odor treatment by torch incineration and regenerative combustion, the applicant designed the following solution.

[0039] like Figure 1 As shown in 2 or 3, a device for harmless treatment of odor comprises:

[0040] An odor incinerator 1 comprises a furnace with a lining on the inner wall, a chimney 3 and a burner 2; the space of the odor incinerator 1 is divided into four sections from bottom to top, including a high-temperature flue gas section, a high-temperature and low-temperature mixing section 6, an incineration section 7 and an incineration extension section; the furnace wall of the high-temperature and low-temperature mixing section 6 is provided with an odor inlet 5; the high-temperature flue gas section is located in the combustion chamber 8 of the burner 2 at the lower end of the furnace, and the incineration extension section is located in the chimney 3 at the upper end of the furnace; a primary air distribution channel 12 and a plurality of secondary air distribution channels 13 are provided at the lower end of the combustion chamber 8, the central axis of the primary air distribution channel 12 is consistent with the central axis of the lower end of the combustion chamber 8, and the plurality of secondary air distribution channels 13 are arranged in a ring wall manner around the circumferential direction of the central axis of the combustion chamber 8; the combustion mechanism of the burner 2 cooperates with the primary air distribution channel 12 and the secondary air distribution channel 13, and burns in the combustion chamber 8 to generate high-temperature flue gas;

[0041] The control system 10 is used to control and monitor the odor incinerator 1 .

[0042] This application utilizes a small amount of fuel gas to burn and generate high-temperature flue gas, and mixes it with low-temperature organic odor to decompose the organic odor into carbon monoxide and hydrogen, etc., and then the decomposed gas undergoes a violent oxidation reaction to produce water and carbon dioxide, and finally meets the emission standards. With the above structure, the fuel gas consumption can be controlled at about 50Nm3 / h, and only a small amount of fuel gas is needed to decompose the odor, which is energy-saving and environmentally friendly. The odor incinerator has a simple structure and good stability, and only needs to control the fuel gas and air intake of the burner 2 through the control system 10 to ensure the four-stage temperature of the odor incinerator 1. It is easy to operate and reliable, and solves the defects of the existing torch incineration and heat storage combustion treatment of odor, and can ensure that the odor emission detection in the device area meets the standards, and can be well applied in fields such as petrochemicals and coal chemical industries that require odor high-temperature treatment devices.

[0043] The burner 2 of the present application can meet the functions of automatic ignition and flameout protection. The fuel gas load is adjusted by adjusting the combustion temperature of the incinerator, and the adjustment is introduced into the DCS (distributed control system of the user control room) for remote adjustment. Figure 3 As shown, the combustion mechanism of the burner 2 includes an ignition gun 17, a burner spray gun 18 and at least one air inlet door 9; the air inlet door 9 is used to let air into the primary air distribution channel 12 and the secondary air distribution channel 13; the combustion chamber 8 is provided with a throat reduction 15 above the primary air distribution channel 12, and the ignition gun 17 and the burner spray gun 18 are located at the throat reduction 15; the burner spray gun 18 is connected to the fuel gas pipeline through the control system 10, so that the fuel gas enters the burner 2.

[0044] The function of the burner 2 is to effectively coordinate the fuel gas and air, and burn to produce high-temperature flue gas reaching 1500° C. A special burner for odor incineration can be used, which has a good combustion effect in practical applications, a wide adjustment ratio and is easy to operate, thus ensuring energy-saving effects.

[0045] Burner performance:

[0046] A. Load adjustment ratio: 1:15 (maximum can reach 1:20, far higher than the technical specification 30% ~ 120% (1:4) load requirement).

[0047] B. The burner meets the maximum load of 50Nm3 / h (the maximum can reach 60~80Nm3 / h, which can better cope with some unforeseen working conditions), and the minimum load meets the small load temperature rise requirements for start-up.

[0048] C. Air adopts secondary air distribution: the primary air distribution is about 80% of the air required for equivalent combustion, which satisfies the stable combustion of fuel gas and oxygen and reduces the production of nitrogen oxides. The secondary air distribution enters through the annular wall, and the secondary air can meet the requirements of complete combustion of fuel gas and complete incineration of tail gas (over-oxygen incineration).

[0049] The ignition gun 17 is an automatic flame ignition gun. This ignition gun has been widely used in similar burners. After qualified debugging, it can successfully ignite once to ensure smooth ignition of the burner 2. In addition, the automatic flame ignition gun can also be used as a long-lasting lamp to ensure the long-term safe operation of the burner in the case of exhaust gas fluctuations.

[0050] like Figure 3 As shown, the air inlet door 9 is provided with an adjusting air door baffle 16 for adjusting the total air intake volume of the air inlet door 9. There can be multiple air inlet doors 9.

[0051] The odor incinerator 1 of the present application is designed in four sections. Figure 4 As shown, the first section uses the combustion chamber 8 of the burner 2 as the high-temperature flue gas section, the second section is the high-low temperature mixing section of low-temperature odor and high-temperature flue gas, the third section is the combustion section, and the fourth section uses the chimney 3 as the combustion extension section. The best state of this product is when the high-temperature generation section is 1000-1500℃, the odor combustion section is 600-850℃, and the chimney extension combustion section is 600-750℃.

[0052] First, there is the high temperature flue gas section of the combustion chamber 8.

[0053] The combustion reaction temperature of the combustion chamber 8 is greater than 1500°C to generate high-temperature flue gas. The combustion reaction temperature of this section reaches above 1500°C, so the performance of the refractory lining needs to be considered when designing this section. At the same time, the adoption of secondary air distribution technology is also an effective measure to protect the refractory lining.

[0054] Since the temperature of the combustion chamber 8 is relatively high>1500°C, the lining needs to consider a temperature resistance of more than 1700°C. Therefore, the lining of the combustion chamber 8 has a refractoriness of ≥1800°C and a refractoriness of >1350°C. Figure 2 As shown, the lining of the combustion chamber 8 adopts a two-layer structure, including a refractory lining and a metal behind the lining. Among them, the lining is inside the equipment, and the outermost is metal. The refractory lining is in direct contact with the flue gas and odor, and the metal is not in direct contact. The inner wall temperature of the metal behind the lining is controlled at 200-260°C, which effectively avoids the problem of metal corrosion by flue gas condensate when the odor contains sulfur. The refractory lining of the combustion chamber 8 adopts our company's special formula refractory material, which can ensure the long-term safe operation of the burner 2.

[0055] The present application adopts a secondary air distribution design. Air enters from the main air inlet 9, and the primary air intake and the secondary air distribution are automatically balanced and matched.

[0056] The primary air intake of the burner 2 and the fuel gas are effectively mixed with strong airflow at the reduced diameter position of the burner 2 throat, which can ensure that the primary air and the fuel gas are evenly mixed and the combustion is stable. A plurality of ventilation holes (i.e., secondary air distribution channels 13) are provided in the circumferential direction of the combustion chamber 8, and the output ports thereof are provided at the edge of the annular wall inside the combustion chamber 8 (close to the lining), such as Figure 3 The secondary air distribution adopts the above air intake method, which can meet the air volume required for complete combustion of fuel gas and burning of odor (over-oxygen combustion), and can also effectively protect the refractory lining.

[0057] The odor incinerator 1 is provided with a plurality of high legs 4 for support. Because the design of the odor incinerator 1 needs to consider the operating space of the burner 2, Figure 2 As shown, the odor incinerator 1 is designed with four legs 4, and the legs 4 are relatively high, so that there is sufficient operating space for the burner 2 at the bottom of the incinerator.

[0058] Next, there is the high and low temperature mixing section 6.

[0059] The main purpose of this section is to effectively mix the low-temperature odor and the high-temperature flue gas. The odor inlet 5 is provided with a turbulent ring. According to the flow rate of the odor, since the flue gas flow rate in the incinerator is not high, the odor cyclone entry and turbulent ring enhanced mixing structure are designed when the odor flow rate is small, so that the low-temperature odor can enter the high-low temperature mixing section through the circumferential cyclone, avoiding the odor from entering and affecting the combustion of the burner 2. At the same time, the added turbulent ring can also strengthen the disturbance of the gas in the furnace, avoiding the problem of low-temperature odor adhering to the wall and requiring a longer mixing section, thereby achieving a better mixing effect.

[0060] Next, it is the incineration section 7.

[0061] The reaction temperature of the incineration section 7 is controlled at 600-850°C, and the residence time is greater than 1 second, so that the effect of odor incineration can be effectively met. The incineration section is provided with a temperature measuring instrument to accurately measure the incineration temperature of the incineration section. The temperature control effect of the incineration section 7 of the incinerator can be achieved by controlling the flow rate of the fuel gas. The diameter of the incinerator this time is not large, so the incineration section 7 can be provided with a flange connection with the previous sections to facilitate later inspection and maintenance.

[0062] Since the reaction temperature of the incineration section 7 is between 600 and 850°C, Figure 6 As shown, the lining of the incineration section 7 only needs to be a single-layer heat-insulating refractory lining. The heat-insulating refractory lining (heat resistance> 1350°C) with a special formula of our company can fully meet the use of this section.

[0063] In order to avoid the problem of dew point corrosion caused by odor and sulfur, the operating temperature of the metal wall of the incinerator shell is 260℃ and the design temperature is 280℃.

[0064] Finally, there is the incineration extension section (i.e. chimney 3).

[0065] The temperature of the incineration extension section is slightly lower than that of the incineration section 7, and needs to be designed according to the temperature of the incineration section 7. The reaction temperature of the incineration extension section is controlled at 600-750°C. Therefore, chimney 3 uses the same heat-insulating refractory lining (heat resistance>1350°C) as incineration section 7, which can fully meet the use of this section. In order to avoid sulfur dew point corrosion, the shell metal wall temperature of chimney 3 is set at 260°C and the design temperature is 280°C.

[0066] The chimney 3 is a large diameter chimney. The chimney 3 of this project does not need such a large diameter in actual calculation, but a chimney 3 with a larger diameter is selected in consideration of two factors.

[0067] A. Considering the incineration extension section of chimney 3, the diameter of chimney 3 is appropriately increased, and the residence time of flue gas in chimney 3 is increased, which is conducive to the complete incineration of odor and meeting emission standards.

[0068] B. The chimney 3 with a larger diameter is convenient for furnace construction and can ensure the quality of furnace construction. At the same time, the chimney 3 with a larger diameter will be more convenient and easy to repair and maintain in the later stage.

[0069] The chimney 3 adopts a self-supporting structure and does not require wind ropes. In order to facilitate later maintenance and repair, the chimney 3 adopts a segmented design and is divided into multiple sections, which is convenient for transportation, assembly, and later inspection and maintenance.

[0070] A rain cap 11 is provided on the top of the chimney 3 to effectively prevent rainwater from entering the incinerator and damaging the refractory lining.

[0071] The chimney 3 is provided with a wind-breaking plate or a wind-breaking ring. The wind-breaking plate or the wind-breaking ring is a component on the chimney 3, which is used to avoid or reduce the resonance of the chimney caused by the Karman vortex generated by the airflow. Therefore, after adopting the wind-breaking ring, the safety hazard caused by the resonance can be avoided.

[0072] The reaction temperatures of the high-temperature flue gas section, the combustion section 7 and the combustion extension section can be controlled by controlling the fuel gas flow rate and the air flow rate of the burner 2.

[0073] The control system 10 includes a valve group and a control cabinet; the valve group adopts a distributed control system in the user control room to achieve remote control. The fuel gas enters the burner 2 of the odor treatment device through the valve group (including the control cabinet). The control cabinet and the DCS are linked to achieve functions such as automatic ignition, flame detection, flameout protection, fuel gas flow control, emergency interlocking furnace shutdown, furnace temperature control, and combustible gas detection. The control system 10 can control the temperature of each section of the incinerator by controlling the fuel gas flow at the bottom and the air flow at the bottom total air inlet. There is no need to add air inlets to the incineration section 7 and the chimney 3. The control is convenient and reliable, and the effect of self-temperature control operation is achieved.

[0074] The odor harmless treatment device further comprises a sampling platform 14 arranged outside the odor incinerator 1. When the flue gas sampling operation is required, the operation can be performed through the sampling platform.

[0075] After the lining furnace is completed, the furnace needs to be dried to dry the free water in the refractory lining. The burner 2 before the start of the device meets the function of starting the furnace and can slowly heat up with a small load. Slow heating for the first start can ensure a longer service life of the incinerator.

[0076] Workflow Description:

[0077] A. The fuel gas enters the burner 2 of the odor treatment device through the valve group (including the control cabinet). The control cabinet and DCS are linked to achieve functions such as automatic ignition, flame detection, flameout protection, fuel gas flow control, emergency interlock shutdown, furnace temperature control, and combustible gas detection.

[0078] B. Through the action of the burner 2 of the odor treatment device, the fuel gas and air are effectively coordinated and burned to produce high-temperature flue gas reaching 1500°C.

[0079] C. The function of the odor incinerator 1 is to effectively mix the high-temperature flue gas with the odor. The first step is to decompose the odor into combustible components such as carbon monoxide and hydrogen, and then perform intense high-temperature oxidation to form carbon dioxide and water, so as to achieve standard emissions, and the incineration efficiency reaches more than 99.99%.

[0080] D. The height of the chimney 3 of the odor treatment device meets the chimney height specified in the standard specifications. At the same time, the chimney 3 also serves as an extension section for odor incineration, which once again ensures the odor incineration effect.

[0081] Low-flow odor is incinerated by the odor harmless treatment device of the present application, which has high incineration efficiency and requires very little auxiliary natural gas. It is an energy-saving incineration harmless treatment device for odor. Tests have shown that under the same odor incineration efficiency, the energy saving of the present application can reach more than 90% compared with the original torch incineration, and the odor treatment efficiency is higher, which can reach 99.99%. The odor treatment device has a simple structure, convenient and reliable control, can meet the effect of one-button ignition and automatic temperature control operation, and has lower investment, which is very promising in the industry.

Claims

1. A device for harmless treatment of odor, characterized in that: include: An odor incinerator (1) comprises a furnace with inner walls all provided with linings, a chimney (3) and a burner (2); the space of the odor incinerator (1) is divided into four sections from bottom to top, including a high-temperature flue gas section, a high-temperature and low-temperature mixing section (6), a combustion section (7) and a combustion extension section; the furnace wall of the high-temperature and low-temperature mixing section (6) is provided with an odor inlet (5); the high-temperature flue gas section is located in a combustion chamber (8) of the burner (2) at the lower end of the furnace, and the combustion extension section is located in the chimney (3) at the upper end of the furnace; the combustion chamber A primary air distribution channel (12) and a plurality of secondary air distribution channels (13) are provided at the lower end of the combustion chamber (8); the central axis of the primary air distribution channel (12) is consistent with the central axis of the lower end of the combustion chamber (8); and the plurality of secondary air distribution channels (13) are arranged in a circular wall manner around the circumferential direction of the central axis of the combustion chamber (8); the combustion mechanism of the burner (2) cooperates with the primary air distribution channel (12) and the secondary air distribution channel (13) to burn in the combustion chamber (8) to generate high-temperature flue gas; A control system (10) is used to control and monitor the odor incinerator (1).

2. The odor harmless treatment device according to claim 1, characterized in that: The reaction temperatures of the high-temperature flue gas section, the incineration section (7) and the incineration extension section are controlled by controlling the fuel gas flow rate and the air flow rate of the burner (2); the combustion reaction temperature of the combustion chamber (8) is greater than 1500°C to generate high-temperature flue gas; the reaction temperature of the incineration section (7) is controlled at 600-850°C; and the reaction temperature of the incineration extension section is controlled at 600-750°C.

3. The odor harmless treatment device according to claim 2, characterized in that: The lining of the combustion chamber (8) adopts a two-layer structure, including a refractory lining and a lining metal; the lining of the incineration section (7) adopts a single-layer refractory lining; and the lining of the chimney (3) adopts a heat-insulating refractory lining.

4. The odor harmless treatment device according to claim 1, characterized in that: The combustion mechanism of the burner (2) comprises an ignition gun (17), a burner spray gun (18) and at least one air inlet door (9); the air inlet door (9) is used to supply air to the primary air distribution channel (12) and the secondary air distribution channel (13); the combustion chamber (8) is provided with a throat reduction (15) above the primary air distribution channel (12), and the ignition gun (17) and the burner spray gun (18) are located at the throat reduction (15); the burner spray gun (18) is connected to the fuel gas pipeline through the control system (10).

5. The odor harmless treatment device according to claim 4, characterized in that: The air inlet door (9) is provided with an air door regulating baffle (16); and the ignition gun (17) is an automatic flame spraying ignition gun.

6. The odor harmless treatment device according to claim 4, characterized in that: A plurality of high legs (4) are provided below the odor incinerator (1) for support.

7. The odor harmless treatment device according to claim 1, characterized in that: The combustion section is provided with a temperature measuring instrument to accurately measure the combustion temperature of the combustion section; the top of the chimney (3) is provided with a rain cap (11); the chimney (3) is provided with a wind-breaking plate or a wind-breaking ring; and the odor inlet (5) is provided with a turbulence ring.

8. The odor harmless treatment device according to claim 1, characterized in that: The chimney (3) adopts a self-supporting structure and is designed in sections; the chimney (3) is a chimney with a large diameter.

9. The odor harmless treatment device according to claim 1, characterized in that: The control system (10) comprises a valve group and a control cabinet; the valve group is remotely controlled by a distributed control system in a user control room.

10. The odor harmless treatment device according to claim 1, characterized in that: It also includes a sampling platform (14) arranged outside the odor incinerator (1).

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