Waste incineration flue gas treatment device

Abstract

The utility model relates to the field of flue gas treatment devices, in particular to a waste incineration flue gas treatment device. The technical problems that in the flue gas treatment process of an existing flue gas treatment device, heavy metal in flue gas is converted into harmless substances in an incineration mode, a large amount of heat can be generated in the incineration process, the heat can be lost along with exhaust of the flue gas, and therefore the heat generated in the incineration process can be wasted, and the environment pollution is caused are solved. And energy waste and cost increase are caused. According to the technical scheme, the waste incineration flue gas treatment device comprises a neutralization box, an incineration box, a water boiling assembly, an air inlet pipe, an air suction cover, a first air pump, a first transfer pipe, a fuel pipeline, a neutralization assembly, a spraying assembly, an ignition nozzle and an alkali liquor pool. Compared with a traditional incineration mode for converting heavy metal in the flue gas into harmless substances, the water boiling tank capable of utilizing the flue gas to boil water is additionally arranged, so that heat can be supplied to residents, and the device is suitable for treatment work of the flue gas generated after waste incineration.

Description

Technical Field

[0001] The utility model relates to the field of flue gas treatment devices, in particular to a garbage incineration flue gas treatment device. Background Art

[0002] The flue gas from incineration is a gas produced by the combustion reaction of harmful substances with oxidants at high temperature. It contains harmful substances such as organic matter, heavy metals, carbon dioxide, water vapor, etc. These harmful substances have serious pollution and harmful effects on the environment and human health, and therefore need to be treated and purified. The existing flue gas treatment device, during the flue gas treatment process, uses incineration to convert the heavy metals in the flue gas into harmless substances. Since a large amount of heat is generated during the incineration process, the heat will be lost with the discharge of the flue gas, so the heat generated during the incineration process may be wasted, resulting in energy waste and increased costs; therefore, we propose a waste incineration flue gas treatment device to solve the above-mentioned problems. Utility Model Content

[0003] In order to overcome the problem of converting heavy metals in flue gas into harmless substances by incineration during flue gas treatment, a large amount of heat will be generated during the incineration process, and the heat will be lost with the discharge of flue gas. Therefore, the heat generated during the incineration process may be wasted, resulting in energy waste and increased costs.

[0004] The technical scheme of the utility model is: a waste incineration flue gas treatment device, comprising a neutralization box, an incineration box, a water-boiling component, an air intake pipe, an air suction hood, a first air pump, a first transfer pipe, a fuel pipeline, a neutralization component, a spray component, an ignition nozzle and an alkali solution pool; the neutralization box is arranged adjacent to the incineration box, a neutralization component for neutralizing the acid and alkali of the flue gas is arranged inside the neutralization box, a spray component for spraying alkali solution is arranged on one side of the inner wall of the neutralization box, a water-boiling component is arranged at one end of the incineration box away from the neutralization box, a first transfer pipe for transferring flue gas is arranged between the neutralization box and the incineration box, a first air pump and a valve are installed on the upper end of the first pipe, and an alkali solution pool for accommodating alkaline solution is arranged at the bottom end of the neutralization box.

[0005] Preferably, the smoke from the garbage incineration is sucked into the air inlet pipe by the suction hood, and the smoke is sprayed out from multiple groups of nozzles. A neutralization reaction occurs in the process of the smoke floating out of the alkali solution, and the acidic substances in the smoke are taken out. The multiple groups of nozzles can be evenly distributed in the alkali solution pool when the smoke is discharged to prevent the neutralization reaction of the alkali solution from being weakened due to a single position. When the smoke floats out of the alkali solution pool, the water pump draws out the alkali solution in the alkali solution pool and sprays it on the top of the alkali solution pool to prevent part of the smoke from not reacting completely. The alkali solution is passed through the pipeline and the nozzle to the nozzle, and the nozzle atomizes the alkali solution and sprays out a fine alkali solution mist, which can better react with the smoke. The electric push rod is extended and retracted to drive the movable block to move in the movable sleeve, so that the nozzle sweeps up and down in a fan shape, so that the droplets are better dispersed and diffused. When the smoke completes the neutralization reaction inward during neutralization, the first The air pump drives the flue gas to be discharged from the first transfer pipe into the incineration box, the valves of the first transfer pipe and the second transfer pipe are closed, combustible gas is discharged from the fuel pipeline, ignited with an ignition nozzle, and the flue gas is incinerated to convert harmful substances such as organic matter and heavy metals in the flue gas into harmless substances such as carbon dioxide and water vapor. Then the valve of the second transfer pipe is opened, one end of the heat transfer pipe is connected to the water inlet pipe, and the other end is connected to the water outlet pipe. The incinerated flue gas is brought into the water heating tank by the second air pump. After the discharge is completed, the valve of the exhaust pipe is closed. The flue gas first passes through multiple groups of carbon filter plates, which can effectively absorb particulate matter, organic matter, heavy metals and other pollutants in the flue gas. After the filtration is completed, the residual heat of the flue gas is absorbed by the heat transfer pipe, and the heat is transferred to the water. The water is boiled, which can provide heating for residents in winter, improve the thermal efficiency and utilization rate of the equipment, and reduce the processing cost.

[0006] Preferably, the water boiling assembly includes a water boiling tank, a second air pump, a second transfer pipe, an exhaust pipe, a heat pipe, a carbon filter plate and a limit block. The interior of the water boiling tank is provided with a heat pipe for boiling water using the residual heat of flue gas. The end of the water boiling tank away from the second transfer pipe is equipped with a heat pipe for boiling water using the residual heat of flue gas. The heat pipe curves are evenly distributed on one side of the hot water tank. Both ends of the heat pipe extend upward to the outside of the hot water tank. A second transfer pipe for transferring the flue gas completed by incineration is installed between the incineration tank and the water boiling tank. A second air pump and a valve are installed on the upper end of the second transfer pipe. The residual heat of the flue gas is absorbed by the heat pipe, so that the heat is transferred to the water to boil the water, which can provide heating for residents in winter, improve the thermal efficiency and utilization rate of the equipment, and reduce processing costs.

[0007] Preferably, a carbon filter plate for adsorbing organic matter in the flue gas is provided on one side of the heat conduction pipe. A plurality of carbon filter plates are provided. The plurality of carbon filter plates are linearly arranged along the inner wall of the water boiler tank. Limit blocks for limiting are provided on both sides of the carbon filter plates. An exhaust pipe for discharging treated flue gas is provided at one end of the water boiler tank away from the second transfer pipe. A valve for controlling the release of flue gas is installed at the upper end of the exhaust pipe. The valve of the second transfer pipe is opened, one end of the heat conduction pipe is connected to the water inlet pipe, and the other end is connected to the water outlet pipe. The flue gas after incineration is brought into the water boiler tank by the second air pump. After the discharge is completed, the valve of the exhaust pipe is closed. The flue gas first passes through a plurality of carbon filter plates, which can effectively absorb particulate matter, organic matter, heavy metals and other pollutants in the flue gas.

[0008] Preferably, the neutralization component includes an air outlet pipe, a diverter pipe and an injection nozzle. The air outlet pipe is installed at the top of the neutralization box. An alkali solution pool for storing alkaline solution is provided at the lower end of the air outlet pipe. The lower end of the air outlet pipe extends downward to the inside of the alkali solution pool. A diverter pipe is provided at the lower end of the air outlet pipe. An injection nozzle for slowly releasing flue gas is provided at the lower end of the diverter pipe. Multiple groups of air holes are provided at the lower end of the injection nozzle. Multiple groups of air holes are provided around the surface of the injection nozzle. Flue gas is ejected from the multiple groups of injection nozzles. A neutralization reaction occurs in the process of flue gas floating out of the alkali solution, and acidic substances in the flue gas are taken out. Multiple groups of injection nozzles can be evenly distributed in the alkali solution pool when the flue gas is discharged to prevent the neutralization reaction of the alkali solution from being weakened due to a single position.

[0009] Preferably, the spray assembly includes a nozzle, a movable sleeve, a movable block, a nozzle, an electric push rod, a pipeline and a water pump. The spray assembly is provided with two groups, and the two groups of spray assemblies are arranged adjacent to each other. The movable sleeve is fixed to one side of the inner wall of the neutralization box. A movable block is provided inside the movable sleeve, and the movable block is fixed to the lower end of the nozzle. The nozzle is movably connected to the movable sleeve through the movable block. An electric push rod is movably connected to one end of the nozzle away from the movable block. The electric push rod is extended and retracted to drive the movable block to move in the movable sleeve, so that the nozzle can sweep up and down in a fan shape, so that the spraying is adjustable and the droplets can be better dispersed and diffused.

[0010] Preferably, one end of the electric push rod away from the nozzle is fixed to one side of the inner wall of the neutralization box, one end of the nozzle is provided with a nozzle for atomizing the alkali solution, and the other end of the nozzle away from the nozzle is provided with a pipe, which extends downward through the neutralization box to the inside of the alkali solution pool, and a water pump for extracting alkali solution from the alkali solution pool is provided at the connection between the pipe and the neutralization box. The water pump extracts the alkali solution in the alkali solution pool and sprays it above the alkali solution pool to prevent part of the flue gas from failing to react. The alkali solution passes through the pipe and the nozzle to the nozzle, and the nozzle atomizes the alkali solution and sprays out fine alkali solution mist, which can better react with the flue gas.

[0011] Preferably, an air inlet pipe for introducing gas into the neutralization assembly is installed at the center of the upper end of the neutralization box, and the air inlet pipe extends downward to the air intake hood. An ignition nozzle for ignition is installed at the inner bottom end of the incineration box, and a fuel pipeline for delivering combustion gas is provided at the lower end of the ignition nozzle. The valves of the first transfer pipe and the second transfer pipe discharge combustible gas from the fuel pipeline, which is ignited by the ignition nozzle to burn the flue gas, thereby converting harmful substances such as organic matter and heavy metals in the flue gas into harmless substances such as carbon dioxide and water vapor.

[0012] Beneficial effects of the utility model:

[0013] 1. Compared with the traditional method of incineration to convert heavy metals in flue gas into harmless substances, a large amount of heat will be generated during the incineration process, and the heat will be lost with the discharge of flue gas, so the heat generated during the incineration process may be wasted, resulting in energy waste and increased costs. A water-boiling tank that can be used to utilize the treated flue gas is added. The flue gas needs to be incinerated in the second step. When the flue gas is discharged into the water-boiling tank, it still has a high temperature. The heat pipe in the water-boiling tank can be heated to boil the water in the heat pipe, so that it can be used for heating for residents. It is better than the existing flue gas treatment device and is suitable for the treatment of flue gas generated after garbage incineration. When the flue gas completes the neutralization reaction inward, the first air pump drives the flue gas to be discharged from the first transfer pipe into Go into the incineration box, close the valves of the first transfer pipe and the second transfer pipe, discharge the combustible gas from the fuel pipeline, ignite it with an ignition nozzle, burn the flue gas, and convert harmful substances such as organic matter and heavy metals in the flue gas into harmless substances such as carbon dioxide and water vapor. Then open the valve of the second transfer pipe, connect one end of the heat transfer pipe to the water inlet pipe, and the other end to the water outlet pipe. The flue gas after incineration is brought into the water heating tank by the second air pump. After the discharge is completed, close the valve of the exhaust pipe. The flue gas first passes through multiple groups of carbon filter plates, which can effectively absorb particulate matter, organic matter, heavy metals and other pollutants in the flue gas. After the filtration is completed, the residual heat of the flue gas is absorbed by the heat transfer pipe, and the heat is transferred to the water. The water is boiled, which can provide heating for residents in winter, improve the thermal efficiency and utilization rate of the equipment, and reduce the processing cost.

[0014] 2. The neutralization component extends the diversion pipe into the bottom of the alkali liquid pool through the air outlet pipe. The flue gas is ejected from multiple groups of nozzles. A neutralization reaction occurs in the process of the flue gas floating out of the alkali liquid, and the acidic substances in the flue gas are taken out. The multiple groups of nozzles can be evenly distributed in the alkali liquid pool when the flue gas is discharged to prevent the neutralization reaction of the alkali liquid from being weakened due to a single position. The neutralization reaction can combine the harmful substances in the flue gas with the alkaline substances to form precipitates or water-soluble substances.

[0015] 3. The spraying assembly uses a water pump to extract the alkali liquid in the alkali liquid pool and spray it above the alkali liquid pool to prevent part of the flue gas from not reacting completely. The alkali liquid passes through the pipe and the nozzle to the nozzle. The nozzle atomizes the alkali liquid and sprays out a fine alkali liquid mist, which can better react with the flue gas. The electric push rod is extended and retracted, driving the movable block to move in the movable sleeve, so that the nozzle sweeps up and down in a fan shape, so that the droplets are better dispersed and diffused, thereby improving the spraying efficiency and allowing the alkaline water mist to more fully contact the pollutants in the flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the overall internal structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the neutralization component of the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the spraying assembly of the utility model.

[0021] Explanation of the reference numerals: 1. Neutralization box; 2. Incineration box; 3. Water-boiling assembly; 301. Water-boiling tank; 302. Second air pump; 303. Second transfer pipe; 304. Exhaust pipe; 305. Heat-conducting pipe; 306. Carbon filter plate; 307. Limiting block; 4. Air inlet pipe; 5. Suction hood; 6. First air pump; 7. First transfer pipe; 8. Fuel pipeline; 9. Neutralization assembly; 901. Air outlet pipe; 902. Diverter pipe; 903. Injector head; 10. Spraying assembly; 1001. Injector head; 1002. Movable sleeve; 1003. Movable block; 1004. Nozzle; 1005. Electric push rod; 1006. Pipeline; 1007. Water pump; 11. Ignition nozzle; 12. Alkaline solution pool. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] See also Figure 1-2The utility model provides an embodiment: a waste incineration flue gas treatment device, comprising a neutralization box 1, an incineration box 2, a water-boiling component 3, an air intake pipe 4, an air suction hood 5, a first air pump 6, a first transfer pipe 7, a fuel pipeline 8, a neutralization component 9, a spray component 10, an ignition nozzle 11 and an alkali solution pool 12; the neutralization box 1 is arranged adjacent to the incineration box 2, the neutralization box 1 is provided with a neutralization component 9 for neutralizing the acid and alkali of the flue gas, a spray component 10 for spraying alkali solution is provided on one side of the inner wall of the neutralization box 1, a water-boiling component 3 is provided at one end of the incineration box 2 away from the neutralization box 1, a first transfer pipe 7 for transferring flue gas is provided between the neutralization box 1 and the incineration box 2, a first air pump 6 and a valve are installed on the upper end of the first pipe, and an alkali solution pool 12 for accommodating alkaline solution is provided at the bottom end of the neutralization box 1.

[0024] See also Figure 2-3 The water-boiling assembly 3 includes a water-boiling tank 301, a second air pump 302, a second transfer pipe 303, an exhaust pipe 304, a heat-conducting pipe 305, a carbon filter plate 306 and a limit block 307. The interior of the water-boiling tank 301 is provided with a heat-conducting pipe 305 for heating water by utilizing the residual heat of flue gas, which is installed at one end of the water-boiling tank 301 away from the second transfer pipe 303. The heat-conducting pipe 305 is evenly distributed on one side of the hot water tank in a curved shape. Both ends of the heat-conducting pipe 305 extend upward to the outside of the hot water tank. A second transfer pipe 303 for transferring the flue gas after incineration is installed between the incineration tank 2 and the water-boiling tank 301. A second air pump 302 and a valve are installed at the upper end of the second transfer pipe 303. The residual heat of the flue gas is absorbed by the heat-conducting pipe 305, so that the heat is transferred to the water, and the water is boiled, which can provide heating for residents in winter, improve the thermal efficiency and utilization rate of the equipment, and reduce the processing cost. A carbon filter plate 306 for absorbing organic matter in the flue gas is provided on one side of the heat conduction pipe 305. The carbon filter plates 306 are provided in multiple groups. The multiple groups of carbon filter plates 306 are linearly arranged along the inner wall of the water heating tank 301. Limiting blocks 307 for limiting are provided on both sides of the carbon filter plates 306. An exhaust pipe 304 for discharging the treated flue gas is provided at one end of the water heating tank 301 away from the second transfer pipe 303. A valve for controlling the release of flue gas is installed on the upper end of the exhaust pipe 304. The valve of the second transfer pipe 303 is opened, one end of the heat conduction pipe 305 is connected to the water inlet pipe, and the other end is connected to the water outlet pipe. The flue gas after incineration is brought into the water heating tank 301 by the second air pump 302. After the discharge is completed, the valve of the exhaust pipe 304 is closed. The flue gas first passes through the multiple groups of carbon filter plates 306, which can effectively absorb pollutants such as particulate matter, organic matter, and heavy metals in the flue gas.

[0025] See also Figure 3-4The neutralization component 9 includes an air outlet pipe 901, a shunt pipe 902 and an air jet 903. The air outlet pipe 901 is installed at the top of the neutralization box 1. The lower end of the air outlet pipe 901 is provided with an alkali solution pool 12 for storing alkaline solution. The lower end of the air outlet pipe 901 extends downward to the inside of the alkali solution pool 12. The lower end of the air outlet pipe 901 is provided with a shunt pipe 902. The lower end of the shunt pipe 902 is provided with an air jet 903 for slowly releasing flue gas. The lower end of the air jet 903 is provided with a plurality of groups of air holes, and the plurality of groups of air holes are surrounded and opened on the surface of the air jet 903. The flue gas is sprayed from the plurality of groups of air jets 903. A neutralization reaction occurs in the process of the flue gas floating out of the alkali solution, and the acidic substances in the flue gas are taken out. The plurality of air jets 903 can be evenly distributed in the alkali solution pool 12 when the flue gas is discharged to prevent the neutralization reaction of the alkali solution from being weakened due to a single position. The spray component 10 includes a nozzle 1001, a movable sleeve 1002, a movable block 1003, a nozzle 1004, an electric push rod 1005, a pipeline 1006 and a water pump 1007. The spray assembly 10 is provided with two groups, and the two groups of spray assemblies 10 are arranged adjacent to each other. The movable sleeve 1002 is fixed to one side of the inner wall of the neutralization box 1. The movable block 1003 is provided inside the movable sleeve 1002. The movable block 1003 is fixed to the lower end of the nozzle 1004. The nozzle 1004 is movably connected to the movable sleeve 1002 through the movable block 1003. The end of the nozzle 1004 away from the movable block 1003 is movably connected with the electric push rod 1005. The electric push rod 1005 is extended and retracted to drive the movable block 1003 to move in the movable sleeve 1002, so that the nozzle 1004 can sweep up and down in a fan shape, so that the spraying has adjustability and the droplets can be better dispersed and diffused.

[0026] See also Figure 4-5In this embodiment, one end of the electric push rod 1005 away from the nozzle 1004 is fixed to one side of the inner wall of the neutralization box 1, one end of the nozzle 1004 is provided with a nozzle 1001 for atomizing the alkali solution, and one end of the nozzle 1004 away from the nozzle 1001 is provided with a pipe 1006, which extends downward through the neutralization box 1 to the inside of the alkali solution pool 12, and a water pump 1007 for extracting alkali solution from the alkali solution pool 12 is provided at the connection between the pipe 1006 and the neutralization box 1. The water pump 1007 extracts the alkali solution in the alkali solution pool 12 and sprays it above the alkali solution pool 12 to prevent part of the smoke from not reacting completely. The alkali solution passes through the pipe 1006 and the nozzle 1 001 to the nozzle, the nozzle atomizes the alkali solution and sprays out a fine alkali solution mist, which can better react with the flue gas. An air intake pipe 4 for introducing gas into the neutralization component 9 is installed at the center of the upper end of the neutralization box 1. The air intake pipe 4 extends downward to the suction hood 5. An ignition nozzle 11 for ignition is installed at the bottom end of the inner part of the incineration box 2. The lower end of the ignition nozzle 11 is provided with a fuel pipeline 8 for delivering combustion gas. The valves of the first transfer pipe 7 and the second transfer pipe 303 discharge combustible gas from the fuel pipeline 8, which is ignited by the ignition nozzle 11 to burn the flue gas, and convert harmful substances such as organic matter and heavy metals in the flue gas into harmless substances such as carbon dioxide and water vapor.

[0027] During operation, the smoke from the garbage incineration is sucked into the air inlet pipe 4 by the suction hood 5, and the smoke is ejected from the multiple groups of nozzles 903. The smoke undergoes a neutralization reaction during the process of floating out of the alkali solution, and the acidic substances in the smoke are taken out. At the same time, the smoke floats out of the alkali solution pool 12;

[0028] The water pump 1007 draws out the alkali liquid in the alkali liquid pool 12 and sprays it on the top of the alkali liquid pool 12 to prevent part of the flue gas from not reacting completely. The alkali liquid passes through the pipe 1006 and the nozzle 1001 to the nozzle, and the nozzle atomizes the alkali liquid and sprays out a fine alkali liquid mist. The electric push rod 1005 is extended and retracted to drive the movable block 1003 to move in the movable sleeve 1002, so that the nozzle 1004 sweeps up and down in a fan shape. When the flue gas is neutralized and moves inward to complete the neutralization reaction;

[0029] The first air pump 6 drives the flue gas to be discharged from the first transfer pipe 7 into the incineration box 2, the valves of the first transfer pipe 7 and the second transfer pipe 303 are closed, the combustible gas is discharged from the fuel pipeline 8, and the ignition nozzle 11 is used to ignite the flue gas, and then the valve of the second transfer pipe 303 is opened, one end of the heat transfer pipe 305 is connected to the water inlet pipe, and the other end is connected to the water outlet pipe;

[0030] The smoke after incineration is brought into the water heating tank 301 by the second air pump 302. After the exhaust is completed, the valve of the exhaust pipe 304 is closed. The smoke first passes through multiple groups of carbon filter plates 306. After the filtration is completed, the residual heat of the smoke is absorbed by the heat conduction pipe 305, so that the heat is transferred to the water, the water is boiled, and the above steps are repeated.

[0031] Through the above steps, a neutralization reaction occurs in the process of flue gas floating out of the alkali solution, and the acidic substances in the flue gas are taken out. By setting multiple groups of nozzles 903, the flue gas can be evenly distributed in the alkali solution pool 12 when discharged. The alkali solution passes through the pipeline 1006 and the nozzle 1001 to the nozzle. The nozzle atomizes the alkali solution and sprays out a fine alkali solution mist. The electric push rod 1005 is extended and retracted to drive the movable block 1003 to move in the movable sleeve 1002, so that the nozzle 1004 can sweep up and down in a fan shape, which can effectively neutralize the acidic substances in the flue gas. Thereby reducing the pollution to the environment, the valves of the first transfer pipe 7 and the second transfer pipe 303 discharge the combustible gas from the fuel pipeline 8, ignite it with the ignition nozzle 11, and burn the flue gas. The burning can effectively remove the toxic and harmful substances in the flue gas, such as organic waste gas and solid particulate matter. After the discharge is completed, the valve of the exhaust pipe 304 is closed, and the residual heat of the flue gas is absorbed by the heat pipe 305, so that the heat is transferred to the water to boil the water, thereby effectively recovering energy and providing a large amount of hot water supply to meet various water needs of households, industries or commerce.

[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A waste incineration flue gas treatment device, comprising a neutralization box (1); characterized in that: The invention also comprises an incineration box (2), a water-boiling assembly (3), an air intake pipe (4), an air suction hood (5), a first air pump (6), a first transfer pipe (7), a fuel pipeline (8), a neutralization assembly (9), a spray assembly (10), an ignition nozzle (11) and an alkali solution pool (12); the neutralization box (1) and the incineration box (2) are arranged adjacent to each other, a neutralization assembly (9) for neutralizing the acid and alkali of the flue gas is arranged inside the neutralization box (1), a spray assembly (10) for spraying alkali solution is arranged on one side of the inner wall of the neutralization box (1), a water-boiling assembly (3) is arranged at one end of the incineration box (2) away from the neutralization box (1), a first transfer pipe (7) for transferring the flue gas is arranged between the neutralization box (1) and the incineration box (2), a first air pump (6) and a valve are installed at the upper end of the first pipe, and an alkali solution pool (12) for containing an alkaline solution is arranged at the bottom of the neutralization box (1).

2. A waste incineration flue gas treatment device according to claim 1, characterized in that: The water-boiling assembly (3) comprises a water-boiling tank (301), a second air pump (302), a second transfer pipe (303), an exhaust pipe (304), a heat-conducting pipe (305), a carbon filter plate (306) and a stopper (307). The water-boiling tank (301) is provided with a heat-conducting pipe (305) for heating water by utilizing the residual heat of flue gas, which is installed at one end of the water-boiling tank (301) away from the second transfer pipe (303). The heat-conducting pipe (305) is evenly distributed in a curved shape on one side of the hot water tank. Both ends of the heat-conducting pipe (305) extend upward to the outside of the hot water tank. A second transfer pipe (303) for transferring the flue gas after incineration is installed between the incineration tank (2) and the water-boiling tank (301). The second air pump (302) and a valve are installed at the upper end of the second transfer pipe (303).

3. A waste incineration flue gas treatment device according to claim 2, characterized in that: A carbon filter plate (306) for absorbing organic matter in the flue gas is provided on one side of the heat conduction pipe (305). The carbon filter plates (306) are provided in a plurality of groups. The plurality of groups of carbon filter plates (306) are linearly arranged along the inner wall of the water heating tank (301). Stop blocks (307) for limiting are provided on both sides of the carbon filter plates (306). An exhaust pipe (304) for discharging the treated flue gas is provided at one end of the water heating tank (301) away from the second transfer pipe (303). A valve for controlling the discharge of the flue gas is installed at the upper end of the exhaust pipe (304).

4. The waste incineration flue gas treatment device according to claim 1, characterized in that: The neutralization component (9) comprises an air outlet pipe (901), a diverter pipe (902) and an air nozzle (903). The air outlet pipe (901) is installed at the top of the neutralization box (1). The lower end of the air outlet pipe (901) is provided with an alkali solution pool (12) for storing an alkaline solution. The lower end of the air outlet pipe (901) extends downward to the inside of the alkali solution pool (12). The lower end of the air outlet pipe (901) is provided with a diverter pipe (902). The lower end of the diverter pipe (902) is provided with an air nozzle (903) for slowly releasing smoke. The lower end of the air nozzle (903) is provided with a plurality of groups of air holes, and the plurality of groups of air holes are arranged around the surface of the air nozzle (903).

5. A waste incineration flue gas treatment device according to claim 4, characterized in that: The spray assembly (10) comprises a spray head (1001), a movable sleeve (1002), a movable block (1003), a nozzle (1004), an electric push rod (1005), a pipeline (1006) and a water pump (1007). The spray assembly (100) is provided with two groups, and the two groups of spray assemblies (10) are arranged adjacent to each other. The movable sleeve (1002) is fixed to one side of the inner wall of the neutralization box (1). A movable block (1003) is provided inside the movable sleeve (1002). The movable block (1003) is fixed to the lower end of the nozzle (1004). The nozzle (1004) is movably connected to the movable sleeve (1002) through the movable block (1003). One end of the nozzle (1004) away from the movable block (1003) is movably connected to the electric push rod (1005).

6. The waste incineration flue gas treatment device according to claim 1, characterized in that: One end of the electric push rod (1005) away from the nozzle (1004) is fixed to one side of the inner wall of the neutralization box (1); one end of the nozzle (1004) is provided with a nozzle (1001) for atomizing the alkali solution; one end of the nozzle (1004) away from the nozzle (1001) is provided with a pipe (1006); the pipe (1006) extends downward through the neutralization box (1) to the inside of the alkali solution pool (12); and a water pump (1007) for extracting alkali solution from the alkali solution pool (12) is provided at the connection between the pipe (1006) and the neutralization box (1).

7. The waste incineration flue gas treatment device according to claim 1, characterized in that: An air intake pipe (4) for introducing gas into a neutralization assembly (9) is installed at the center of the upper end of the neutralization box (1), and the air intake pipe (4) extends downward to an air intake hood (5). An ignition nozzle (11) for ignition is installed at the bottom end of the incineration box (2), and a fuel pipeline (8) for feeding combustion gas is provided at the lower end of the ignition nozzle (11).

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