Flue gas high-temperature combustion environment-friendly treatment equipment and treatment method thereof

Abstract

The invention discloses flue gas high-temperature combustion environment-friendly treatment equipment and a treatment method thereof, and relates to the field of flue gas treatment. The flue gas high-temperature combustion environment-friendly treatment equipment comprises a combustion chamber, a combustor is fixedly connected in the combustion chamber, and the flue gas high-temperature combustion environment-friendly treatment equipment further comprises a supporting frame, and the combustion chamber is fixedly installed on the supporting frame; the heat exchange cylinder is fixedly connected to the lower part in the combustion chamber; the interior of the heat exchange cylinder is divided into an air inlet cavity and an exhaust cavity through a partition plate. The multiple rows of heat exchange fins are inserted into the air inlet cavity and the air outlet cavity at equal intervals in a penetrating mode; according to the invention, to-be-combusted flue gas can be pre-heated, and the temperature difference between the to-be-combusted flue gas and flame is shortened, so that when the flue gas is in contact with the high-temperature flame generated by the combustor, harmful substances in the flue gas can quickly reach the temperature required by decomposition, the combustion sufficiency of the flue gas is ensured, and the combustion efficiency is improved. The flue gas purification treatment effect is improved, meanwhile, the combustion time can be shortened, and the economical efficiency and the operation efficiency of the whole treatment system are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of flue gas treatment, and in particular, relates to a flue gas high-temperature combustion environmentally friendly treatment device and a treatment method thereof. Background Art

[0002] In the process of industrial production, a large amount of flue gas containing various pollutants will be generated. If these flue gases are directly discharged into the atmosphere without effective treatment, they will cause serious harm to the environment and human health. High-temperature combustion treatment technology, as an effective flue gas treatment method, has received widespread attention in the field of environmental protection.

[0003] At present, in the process of high-temperature combustion treatment of flue gas, there is a key problem, that is, the large temperature difference between the flue gas temperature and the burner temperature. When the temperature difference between the flue gas temperature and the burner temperature is large, it will cause a series of serious problems. First, incomplete combustion is one of the most prominent problems. Since the low-temperature flue gas enters the high-temperature burner environment, it may not be able to quickly reach the activation energy conditions required for combustion, so that some combustible components cannot be fully mixed with oxygen and undergo a complete oxidation reaction in a short time. This not only leads to a waste of energy, but also the incompletely burned products may still be polluting and will be discharged into the atmosphere with the treated flue gas, and the expected environmental protection treatment effect cannot be achieved. Secondly, this large temperature difference will lead to a longer combustion time. The long combustion process will also increase energy consumption and reduce the economy and operation efficiency of the entire treatment system.

[0004] Due to incomplete combustion and long combustion time, carbon deposits and coking may occur inside the combustion equipment. Carbon deposits and coking will further affect the combustion efficiency, reduce the heat transfer performance of the equipment, and further aggravate the problem. In view of this, the present invention is specially proposed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a flue gas high temperature combustion environmental protection treatment device and a treatment method thereof which can overcome the above problems or at least partially solve the above problems.

[0006] To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a high-temperature combustion and environmental protection treatment equipment for flue gas, including a combustion chamber, in which a burner is fixedly connected, and also including: a support frame, in which the combustion chamber is fixedly installed on the support frame; a heat exchange tube, fixedly connected to the inner bottom of the combustion chamber; the heat exchange tube is divided into an air intake chamber and an exhaust chamber by a partition; a plurality of rows of heat exchange fins are equidistantly interspersed in the air intake chamber and the exhaust chamber; an air intake pipe is connected to the air intake chamber of the heat exchange tube; an exhaust pipe is connected to the exhaust chamber of the heat exchange tube; a filtering mechanism for filtering particulate matter such as dust in the flue gas is installed on a side of the support frame close to the combustion chamber, and the air inlet of the air intake pipe is connected to the exhaust port of the filtering mechanism; an exhaust pump is installed on the side of the combustion chamber away from the filtering mechanism, and the air outlet of the exhaust pipe is connected to the air inlet of the exhaust pump.

[0007] In order to improve the heat exchange effect of the flue gas and slow down the speed at which the flue gas enters the combustion chamber, further, every two adjacent rows of the heat exchange fins are staggered.

[0008] Furthermore, the filtering mechanism includes a filter box and a filter plate. The filter box is fixedly mounted on a support frame. A smoke inlet is provided at the lower end of the filter box on a side away from the combustion chamber. A smoke exhaust port of the filtering mechanism is provided at the upper end of the filter box on a side close to the combustion chamber. The filter plate is installed in the filter box and is located between the smoke inlet and the smoke exhaust port.

[0009] In order to facilitate the gradual removal of dust and other particulate impurities of different particle sizes in the flue gas and avoid the filter plate being quickly blocked when there are a lot of dust and other particulate impurities in the flue gas, further, the filter plates are provided with multiple filter plates, and the filter apertures of the multiple filter plates increase successively from top to bottom.

[0010] In order to facilitate back-blowing of the filter plate and reduce the concentration of harmful substances and increase the oxygen content, further, a jet pipe is fixedly connected to a position near the filter plate in the filter box, and a plurality of jet heads facing the filter plate are equidistantly connected to the jet pipe.

[0011] In order to make the gas ejected from the injection pipe have a certain temperature so as to reduce the moisture in the flue gas, further, a heat exchange air pipe is fixedly connected to the upper end of the interior of the combustion chamber, both ends of the heat exchange air pipe extend out of the combustion chamber, the position of the heat exchange air pipe inside the combustion chamber is designed in a serpentine shape, and the air outlet end of the heat exchange air pipe is connected to the air inlet end of the injection pipe.

[0012] In order to extend the time that smoke stays in the filter box, further, a plurality of partition plates are equidistantly and staggeredly connected in the filter box, and the plurality of filter plates are respectively fixedly connected to adjacent partition plates and are located at the end of the partition plates that is not in contact with the inner wall of the filter box. The spacing between every two adjacent partition plates is the same as the height of the filter plates, wherein the filter plate located at the top is in contact with the inner wall of the upper end of the filter box.

[0013] In order to facilitate the re-heating treatment of the flue gas, an air storage chamber is further opened on the upper part of the filter box, the air outlet end of the heat exchange air pipe is connected to the air inlet end of the air storage chamber, and the air outlet end of the air storage chamber is connected to the air inlet end of the injection pipe through a connecting air pipe.

[0014] In order to facilitate quick cleaning of the interior of the filter box, further, the end of the partition plate away from the filter plate is rotatably connected to the filter box via a rotating shaft, the filter box is symmetrically fixedly connected with guide rods at a position close to the smoke inlet, and abutment plates are slidably connected to the two guide rods, and the lower surface of the partition plate located at the bottom is fixedly connected with an inclined plate used in conjunction with the abutment plate, a tension spring is sleeved on the guide rod, and the two ends of the tension spring are respectively fixedly connected to the inner wall of the filter box and the abutment plate, the lower end of the interior of the filter box is provided with an inclined surface inclined toward the smoke inlet, and a discharge port is provided at the bottom of the filter box near the smoke inlet, and a sealing plug is connected to the discharge port.

[0015] A flue gas treatment method mainly comprises the following steps:

[0016] S1: When it is necessary to purify the flue gas generated by the production operation, the burner is first started to increase the temperature in the combustion chamber. When the temperature in the combustion chamber reaches the specified temperature range, the flue gas can be transported to the filter box through the flue gas conveying pipe, and the exhaust pump is started;

[0017] S2: The flue gas entering the filter box will be pre-treated under the action of the filter plate to filter out dust and other particulate impurities in the flue gas;

[0018] S3: After the flue gas passes through the filter plate, the flue gas that has been filtered and impurities removed will first enter the air intake cavity in the heat exchange cylinder through the air intake pipe, and then enter the combustion chamber through the opening opened above the air intake cavity;

[0019] S4: When the exhaust pump is working, the high-temperature gas will enter the exhaust chamber after being heated. When the high-temperature gas contacts the heat exchange fins, the heat exchange fins will transfer the heat of the high-temperature gas to the intake chamber, pre-heating the flue gas to be burned in the intake chamber, shortening the temperature difference between the flue gas to be burned and the flame;

[0020] S5: When the flue gas comes into contact with the high-temperature flame generated by the burner, the harmful substances in the flue gas will be decomposed by the high-temperature combustion.

[0021] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art: the present invention pre-heats the flue gas to be burned in the air intake chamber through the coordinated use of components such as a heat exchange cylinder, an air intake chamber, an exhaust chamber, an air intake pipe, an exhaust pipe, heat exchange fins, and an exhaust pump, thereby shortening the temperature difference between the flue gas to be burned and the flame, so that when the flue gas contacts the high-temperature flame generated by the burner, the harmful substances in the flue gas can quickly reach the temperature required for decomposition, thereby ensuring the adequacy of the combustion of the flue gas, effectively improving the effect of purifying the flue gas, and at the same time shortening the combustion time, thereby improving the economy and operating efficiency of the entire treatment system.

[0022] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In the attached picture:

[0024] Figure 1 This is a front structural schematic diagram of the present invention installed on a support frame;

[0025] Figure 2 This is a schematic diagram of the back structure of the present invention installed on a support frame;

[0026] Figure 3 The structure of the combustion chamber and the filter box in the present invention is shown in FIG. Figure 1 ;

[0027] Figure 4 The structure of the combustion chamber and the filter box in the present invention is shown in FIG. Figure 2 ;

[0028] Figure 5 It is a schematic diagram of the structure inside the heat exchange tube in the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of the air injection pipe and the connecting air pipe in the present invention;

[0030] Figure 7 It is a schematic diagram of the structure of the partition plate, the inclined plate, the guide rod, the abutment plate and the tension spring in the present invention.

[0031] In the figure: 1. support frame; 2. combustion chamber; 201. air inlet pipe; 202. exhaust pipe; 203. exhaust pump; 204. heat exchange cylinder; 2041. air inlet cavity; 2042. exhaust cavity; 2043. heat exchange fins; 205. burner; 206. heat exchange air pipe; 3. filter box; 301. smoke inlet; 303. air storage cavity; 304. partition plate; 305. filter plate; 306. jet pipe; 307. connecting air pipe; 308. abutment plate; 309. guide rod; 3010. tension spring; 3011. tilting plate; 3012. sealing plug; 3013. tilting surface. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0033] Example 1: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 A high-temperature flue gas combustion environmental protection treatment equipment includes a combustion chamber 2, a burner 205 is fixedly connected to the combustion chamber 2, and also includes: a support frame 1, the combustion chamber 2 is fixedly installed on the support frame 1; a heat exchange tube 204, fixedly connected to the lower part of the combustion chamber 2; the heat exchange tube 204 is divided into an air intake chamber 2041 and an exhaust chamber 2042 by a partition; a plurality of rows of heat exchange fins 2043, equidistantly inserted in the air intake chamber 2041 and the exhaust chamber 2042; an air intake pipe 201, It is connected to the air inlet chamber 2041 of the heat exchange tube 204; the exhaust pipe 202 is connected to the exhaust chamber 2042 of the heat exchange tube 204; a filtering mechanism for filtering particulate matter such as dust in the flue gas is installed on the side of the support frame 1 close to the combustion chamber 2, and the air inlet of the air inlet pipe 201 is connected to the exhaust port of the filtering mechanism; an exhaust pump 203 is installed on the side of the combustion chamber 2 away from the filtering mechanism, and the air outlet of the exhaust pipe 202 is connected to the air inlet of the exhaust pump 203.

[0034] The filtering mechanism includes a filter box 3 and a filter plate 305. The filter box 3 is fixedly mounted on the support frame 1. A smoke inlet 301 is provided at the lower end of the filter box 3 on a side away from the combustion chamber 2. The smoke exhaust port of the filtering mechanism is provided at the upper end of the filter box 3 on a side close to the combustion chamber 2. The filter plate 305 is installed in the filter box 3 and is located between the smoke inlet 301 and the smoke exhaust port.

[0035] Before factories and enterprises purify the flue gas, they first install the equipment at the designated location, then connect the flue gas delivery pipe to the smoke inlet 301 of the filter box 3, connect the two ends of the air inlet pipe 201 to the smoke outlet of the filter box 3 and the air inlet cavity 2041 of the heat exchange cylinder 204, and connect the two ends of the exhaust pipe 202 to the exhaust cavity 2042 of the heat exchange cylinder 204 and the air inlet of the exhaust pump 203. When it is necessary to purify the flue gas generated by the production operation, this The burner 205 can be started at this time, and the burner 205 will generate flames to increase the temperature in the combustion chamber 2. When the temperature in the combustion chamber 2 reaches the specified temperature range, the flue gas can be transported to the filter box 3 through the flue gas delivery pipe, and the exhaust pump 203 is started. Then, the flue gas entering the filter box 3 will be pre-treated under the action of the filter plate 305 to filter out particulate impurities such as dust in the flue gas. After the flue gas passes through the filter plate 305, the flue gas that has been filtered and impurities removed will be The flue gas first enters the intake cavity 2041 in the heat exchange cylinder 204 through the intake pipe 201, and then enters the combustion chamber 2 through the opening above the intake cavity 2041. When the exhaust pump 203 is working, the exhaust pump 203 will generate a suction force on the combustion chamber 2 through the exhaust pipe 202, and then the high-temperature gas after heating will enter the exhaust cavity 2042 under the action of the suction force. When the high-temperature gas contacts the heat exchange fins 2043, the heat exchange fins 2043 will transfer the heat of the high-temperature gas to the intake cavity 2041, and pre-heat the flue gas to be burned in the intake cavity 2041, thereby shortening the temperature difference between the flue gas to be burned and the flame, so that when the flue gas contacts the high-temperature flame generated by the burner 205, the harmful substances in the flue gas can quickly reach the temperature required for decomposition, thereby ensuring the adequacy of the combustion of the flue gas, effectively improving the effect of the flue gas purification treatment, and at the same time shortening the combustion time, thereby improving the economy and operation efficiency of the entire treatment system.

[0036] Example 2: Reference Figure 5 , a flue gas high-temperature combustion environmental protection treatment equipment, is basically the same as Example 1, and further, every two adjacent rows of heat exchange fins 2043 are staggered. By staggering the heat exchange fins 2043 between every two adjacent rows, when the flue gas enters the air inlet chamber 2041 and the purified high-temperature gas enters the exhaust chamber 2042, the flue gas, the purified high-temperature gas and the heat exchange fins 2043 can be fully contacted, thereby further improving the heat exchange efficiency between the flue gas and the purified high-temperature gas, and at the same time, it can also slow down the speed of the flue gas entering the combustion chamber 2, so that the burner 205 can more fully perform high-temperature combustion and decomposition on the harmful substances in the flue gas, effectively improving the purification effect of the flue gas.

[0037] Example 3: Reference Figure 3 , Figure 4, a high-temperature combustion environmental protection treatment equipment for flue gas, is basically the same as Example 2, and further, a plurality of filter plates 305 are provided, and the filter apertures of the plurality of filter plates 305 increase successively from top to bottom. By making the filter apertures of the plurality of filter plates 305 increase successively from top to bottom, when the flue gas floats upward in the filter box 3 and passes through each filter plate 305 in turn, particulate impurities such as dust of different particle sizes in the flue gas can be gradually removed, so as to avoid that when there are a lot of particulate impurities such as dust in the flue gas, the filter plate 305 is quickly blocked, thereby affecting the passage of the flue gas.

[0038] Example 4: Reference Figure 3 , Figure 4 , a flue gas high temperature combustion environmental protection treatment equipment, which is basically the same as Example 3, and further, a jet pipe 306 is fixedly connected to the position near the filter plate 305 in the filter box 3, and a plurality of jet heads facing the filter plate 305 are equidistantly connected to the jet pipe 306. Through the setting of the jet pipe 306, when the flue gas flows from bottom to top in the filter box 3 and passes through the plurality of filter plates 305 in sequence, the jet pipe 306 can have a back-blowing effect on the filter plate 305, so as to facilitate the removal of dust and other particulate impurities filtered out from the flue gas on the filter plate 305, so as to avoid clogging of the filter plate 305 and affect the passage of the flue gas. When the gas ejected from the jet pipe 306 collides with the flue gas, the gas ejected from the jet pipe 306 and the flue gas can be more fully mixed, thereby reducing the concentration of harmful substances in the flue gas, and avoiding incomplete combustion during subsequent high-temperature combustion of the flue gas, thereby affecting the purification effect. When the gas is transported into the jet pipe 306, a certain amount of oxygen (combustion-supporting gas) can also be transported into the jet pipe 306 at the same time, thereby increasing the oxygen concentration of the flue gas, so that when the subsequent burner 205 performs high-temperature combustion on the flue gas, the combustion effect of the flue gas can be promoted, so as to further improve the decomposition and purification effect of harmful substances in the flue gas.

[0039] A heat exchange air pipe 206 is fixedly connected to the internal upper end of the combustion chamber 2, and both ends of the heat exchange air pipe 206 extend out of the combustion chamber 2. The position of the heat exchange air pipe 206 inside the combustion chamber 2 is designed in a serpentine shape, and the air outlet end of the heat exchange air pipe 206 is connected to the air inlet end of the jet pipe 306, and the air inlet end of the heat exchange air pipe 206 is connected to an external air pump. When the external air pump transports gas to the jet pipe 306 through the heat exchange air pipe 206, the gas flowing through the heat exchange air pipe 206 can be fully utilized with the heat in the combustion chamber 2, so that the jet pipe 306 can spray hot air into the flue gas, dry the flue gas, reduce the moisture in the flue gas, and avoid excessive moisture affecting the combustion effect, so that when the subsequent flue gas enters the combustion chamber 2 and is burned at high temperature by the burner 205, the harmful substances in the flue gas can be more fully decomposed and purified by the high-temperature combustion.

[0040] Example 5: Reference Figure 2 , Figure 3 , Figure 4 , Figure 6 , a high-temperature combustion and environmental protection treatment equipment for flue gas, which is basically the same as Example 4, and further, a plurality of partition plates 304 are equidistantly and staggeredly connected in the filter box 3, and a plurality of filter plates 305 are respectively fixedly connected to adjacent partition plates 304, and are located at the end of the partition plate 304 that is not in contact with the inner wall of the filter box 3, and the spacing between every two adjacent partition plates 304 is the same as the height of the filter plate 305, wherein the filter plate 305 located at the top is in contact with the inner wall of the upper end of the filter box 3. By staggering the plurality of partition plates 304 in the filter box 3, the residence time of the flue gas in the filter box 3 can be extended, so that the flue gas can be more fully mixed with the gas ejected from the injection pipe 306, so as to improve the uniformity of the increase in the flue gas temperature, the dilution effect on the concentration of harmful substances in the flue gas, and the increase in the oxygen concentration in the flue gas and the dryness of the flue gas, so that the flue gas can be more fully burned and decomposed later.

[0041] An air storage chamber 303 is provided at the upper part of the filter box 3, and the air outlet end of the heat exchange air pipe 206 is connected to the air inlet end of the air storage chamber 303, and the air outlet end of the air storage chamber 303 is connected to the air inlet end of the injection pipe 306 via a connecting air pipe 307. Through the setting of the air storage chamber 303, when the flue gas floats upward, it will contact the lower surface of the air storage chamber 303, and then the heated air storage chamber 303 will heat the flue gas again, further shortening the temperature difference between the flue gas and the flame ejected by the burner 205, so that after the flue gas enters the combustion chamber 2, the temperature of the flue gas can quickly reach the temperature range for decomposing harmful substances, further improving the efficiency of the flue gas purification treatment.

[0042] Example 6: Reference Figure 3 , Figure 4 , Figure 7 , a flue gas high-temperature combustion environmental protection treatment equipment, which is basically the same as Example 5, and further, one end of the partition plate 304 away from the filter plate 305 is rotatably connected to the filter box 3 through a rotating shaft, and the filter box 3 is symmetrically fixedly connected with a guide rod 309 near the smoke inlet 301, and the two guide rods 309 are slidably connected with a push plate 308, and the lower surface of the partition plate 304 located at the bottom is fixedly connected with an inclined plate 3011 used in conjunction with the push plate 308, and a tension spring 3010 is sleeved on the guide rod 309, and the two ends of the tension spring 3010 are respectively fixedly connected to the inner wall of the filter box 3 and the push plate 308, and the lower end of the inner part of the filter box 3 is provided with an inclined surface 3013 inclined toward the smoke inlet 301, and a discharge port is opened at the bottom of the filter box 3 near the smoke inlet 301, and a sealing plug 3012 is connected to the discharge port.

[0043] When the device has been used for a period of time and the dust and other particulate impurities accumulated in the filter box 3 need to be removed, the smoke delivery into the filter box 3 can be stopped at this time, and then the impact force of the smoke on the abutment plate 308 will disappear, and the tension spring 3010 will pull the abutment plate 308 to one side of the smoke inlet 301, and then the partition plate 304 will rotate downward under the action of its own gravity and be distributed in the filter box 3 in an inclined downward state, then the air inlet pipe 201 can be separated from the smoke outlet of the filter box 3, and the sealing plug 3012 can be opened, and then the water pipe for delivering cleaning water can be connected to the smoke outlet, and then the cleaning water can be delivered to the filter box 3 through the water pipe, and then the cleaning water will flow along the staggered partition plates 3 04 flows downward in a serpentine shape to rinse each partition plate 304 and filter plate 305. When the cleaning water flows down to the inclined surface 3013 at the bottom of the filter box 3, it will flow along the inclined surface 3013 to the discharge port, and then the waste water generated by the cleaning will be discharged from the filter box 3 through the discharge port. When the water discharged from the discharge port becomes clear, it can be known that the cleaning operation inside the filter box 3 has been completed. In order to make the filter box 3 dry, the hot air purified by the equipment can be introduced into the filter box 3 to dry the inside of the filter box 3, so as to make full use of the residual heat of the exhaust gas combustion purification treatment. Finally, the components connected to the filter box 3 are restored to their original positions and put into use again.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as above with a preferred embodiment, it is not used to limit the present invention.

Claims

1. A flue gas high temperature combustion environmental protection treatment equipment, characterized in that: It comprises a combustion chamber (2), a burner (205) being fixedly connected to the combustion chamber (2), and further comprises: A support frame (1), wherein the combustion chamber (2) is fixedly mounted on the support frame (1); A heat exchange cylinder (204) fixedly connected to the lower part of the combustion chamber (2); The heat exchange cylinder (204) is divided into an air intake chamber (2041) and an air exhaust chamber (2042) by a partition plate; A plurality of rows of heat exchange fins (2043) are equidistantly interspersed in the air inlet cavity (2041) and the air outlet cavity (2042); An air inlet pipe (201) connected to an air inlet cavity (2041) of the heat exchange cylinder (204); An exhaust pipe (202) is connected to an exhaust cavity (2042) of the heat exchange cylinder (204); A filtering mechanism for filtering dust and other particulate matter in the smoke is installed on the support frame (1) on a side close to the combustion chamber (2), and the air inlet of the air inlet pipe (201) is connected to the smoke exhaust port of the filtering mechanism; An exhaust pump (203) is installed on the side of the combustion chamber (2) away from the filtering mechanism, and the air outlet of the exhaust pipe (202) is connected to the air inlet of the exhaust pump (203).

2. The high-temperature combustion environmental protection treatment equipment for flue gas according to claim 1 is characterized in that: Every two adjacent rows of the heat exchange fins (2043) are arranged in a staggered manner.

3. The high-temperature combustion environmental protection treatment equipment for flue gas according to claim 1 is characterized in that: The filtering mechanism comprises a filter box (3) and a filter plate (305); the filter box (3) is fixedly mounted on the support frame (1); a smoke inlet (301) is provided at the lower end of the filter box (3) on a side away from the combustion chamber (2); a smoke exhaust port of the filtering mechanism is provided at the upper end of the filter box (3) on a side close to the combustion chamber (2); the filter plate (305) is mounted in the filter box (3) and is located between the smoke inlet (301) and the smoke exhaust port.

4. The high-temperature combustion environmental protection treatment equipment for flue gas according to claim 3 is characterized in that: The filter plates (305) are provided in plurality, and the filter apertures of the filter plates (305) increase in sequence from top to bottom.

5. The high-temperature combustion environmental protection treatment equipment for flue gas according to claim 3 is characterized in that: An air jet pipe (306) is fixedly connected to a position in the filter box (3) close to the filter plate (305), and a plurality of air jet heads facing the filter plate (305) are equidistantly connected to the air jet pipe (306).

6. The high-temperature combustion environmental protection treatment equipment for flue gas according to claim 5 is characterized in that: A heat exchange air pipe (206) is fixedly connected to the internal upper end of the combustion chamber (2), both ends of the heat exchange air pipe (206) extend out of the combustion chamber (2), the position of the heat exchange air pipe (206) inside the combustion chamber (2) is designed in a serpentine shape, and the air outlet end of the heat exchange air pipe (206) is connected to the air inlet end of the injection pipe (306).

7. The high-temperature combustion environmental protection treatment equipment for flue gas according to claim 6 is characterized in that: A plurality of partition plates (304) are equidistantly and staggeredly connected in the filter box (3); the plurality of filter plates (305) are respectively fixedly connected to adjacent partition plates (304) and are located at the end of the partition plates (304) that is not in contact with the inner wall of the filter box (3); the spacing between each two adjacent partition plates (304) is the same as the height of the filter plates (305); and the filter plate (305) located at the top is in contact with the inner wall of the upper end of the filter box (3).

8. The high-temperature combustion environmental protection treatment equipment for flue gas according to claim 6 is characterized in that: An air storage chamber (303) is provided at the upper part of the interior of the filter box (3); the air outlet end of the heat exchange air pipe (206) is connected to the air inlet end of the air storage chamber (303); and the air outlet end of the air storage chamber (303) is connected to the air inlet end of the air injection pipe (306) via a connecting air pipe (307).

9. The high-temperature combustion environmental protection treatment equipment for flue gas according to claim 7, characterized in that: One end of the partition plate (304) away from the filter plate (305) is rotatably connected to the filter box (3) via a rotating shaft; a guide rod (309) is symmetrically fixedly connected to a position of the filter box (3) near the smoke inlet (301); two guide rods (309) are slidably connected to abutment plates (308); an inclined plate (3011) used in conjunction with the abutment plate (308) is fixedly connected to the lower surface of the partition plate (304) located at the bottom; a tension spring (3010) is sleeved on the guide rod (309); two ends of the tension spring (3010) are respectively fixedly connected to the inner wall of the filter box (3) and the abutment plate (308); an inclined surface (3013) inclined toward the smoke inlet (301) is provided at the inner lower end of the filter box (3); a discharge port is provided at a position of the bottom of the filter box (3) near the smoke inlet (301); a sealing plug (3012) is connected to the discharge port.

10. A method for treating flue gas, using the high-temperature combustion environmentally friendly treatment equipment for flue gas according to claim 3, characterized in that: The main steps include: S1: When it is necessary to purify the flue gas generated by the production operation, the burner (205) is first started to increase the temperature in the combustion chamber (2). When the temperature in the combustion chamber (2) reaches a specified temperature range, the flue gas can be transported to the filter box (3) through the flue gas transport pipe, and the exhaust pump (203) is started; S2: The smoke entering the filter box (3) is pre-treated by the filter plate (305) to filter out dust and other particulate impurities in the smoke; S3: After the smoke passes through the filter plate (305), the smoke that has been filtered and free of impurities first enters the air intake cavity (2041) in the heat exchange cylinder (204) through the air intake pipe (201), and then enters the combustion chamber (2) through the opening opened above the air intake cavity (2041); S4: When the exhaust pump (203) is working, the high-temperature gas after being heated will enter the exhaust chamber (2042). When the high-temperature gas contacts the heat exchange fins (2043), the heat exchange fins (2043) will transfer the heat of the high-temperature gas to the air intake chamber (2041), pre-heating the flue gas to be burned in the air intake chamber (2041), thereby shortening the temperature difference between the flue gas to be burned and the flame. S5: When the flue gas comes into contact with the high-temperature flame generated by the burner (205), harmful substances in the flue gas will be decomposed by the high-temperature combustion.

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