Domestic waste incineration flue gas denitration treatment equipment
By accurately controlling the temperature inside the denitrification barrel in the flue gas denitrification treatment equipment and using a thread brush to remove impurities in the nozzle, the problem of denitrition efficiency caused by temperature instability in the prior art is solved, and efficient and thorough flue gas denitrification effect is achieved.
Patent Information
- Application Number
- CN202421504662.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-06-28
AI Technical Summary
In the existing flue gas denitrition technology, the decomposition rate of ammonia is too slow when the temperature is too low, and the evaporation rate of ammonia is too fast when the temperature is too high, resulting in a decrease in denitrification efficiency and unstable catalyst activity.
A domestic waste incineration flue gas denitrition treatment equipment was designed. By setting a water storage bag and heating wire inside the denitrification barrel, the temperature inside the denitrification barrel is accurately controlled, so that the flue gas denitrition reaction is carried out under the optimal conditions. At the same time, use a thread brush to remove impurities in the nozzle to ensure smooth discharge of ammonia.
By accurately controlling the temperature inside the denitrification barrel, maintaining the activity and stability of the catalyst, ensuring the flue gas denitrification reaction is carried out thoroughly, effectively improving the denitrification efficiency and purity, and reducing equipment damage and energy waste.
Smart Images
Figure CN222816591U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of flue gas denitration, in particular to a denitration treatment device for flue gas from the incineration of domestic garbage. Background Art
[0002] Domestic waste mainly includes various wastes generated in daily life, and domestic waste is usually treated by incineration.
[0003] Domestic waste incineration is a waste treatment method that oxidizes domestic waste at high temperature to convert it into high-temperature gas, molten solid residue and a small amount of recyclable materials. Domestic waste usually crushes larger objects and puts them into an incinerator for high-temperature incineration. Harmful gases and particulate matter will be generated during the incineration process. These harmful flue gases need to be denitrated. In the prior art, ammonia is mixed with the flue gas for chemical reaction to carry out denitration.
[0004] During the flue gas denitrification process, when the temperature inside the denitrification box is too low, the decomposition rate of ammonia will be too slow and the reaction rate will decrease. When the temperature is too high, the evaporation rate of ammonia will be too fast, causing the humidity of the flue gas to increase, which can easily lead to unstable catalyst activity, thereby reducing the denitrification efficiency.
[0005] To this end, the utility model provides a denitration treatment device for flue gas from the incineration of domestic waste. Utility Model Content
[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.
[0007] The technical solution adopted by the utility model to solve its technical problems is: a denitration treatment device for flue gas from incineration of domestic waste described in the utility model comprises a denitration barrel; a smoke inlet pipe is fixedly connected to the middle of the denitration barrel; a first motor is fixedly connected to the top of the denitration barrel; the output end of the first motor passes through the top of the denitration barrel; a rotating shaft is fixedly connected to the output end of the first motor; two guide plates are fixedly connected to the middle of the rotating shaft; the guide plate is arranged in the middle of the denitration barrel; a water storage bag is fixedly connected to the side wall of the denitration barrel; the water storage bag is fixedly connected to the inside of the denitration barrel; a mesh plate is fixedly connected to the side wall of the denitration barrel; the mesh plate is fixedly connected to the position corresponding to the water storage bag; a heating wire is fixedly connected to the middle of the mesh plate; a water injection pipe is fixedly connected to the side wall of the water storage bag; the end of the water injection pipe passes through the middle of the denitration barrel; a drain pipe is fixedly connected to the side wall of the water storage bag; the drain pipe It is fixedly connected to the side away from the water injection pipe; the end of the drainage pipe passes through the middle of the denitrification barrel; a first filter is fixedly connected to the middle of the denitrification barrel; the guide plate passes through the middle of the first filter; the first filter is fixedly connected to the top of the mesh plate; a second filter is fixedly connected to the middle of the denitrification barrel; the second filter is fixedly connected to the bottom of the mesh plate; an ammonia box is fixedly connected to the middle of the denitrification barrel; the ammonia box is fixedly connected to a position close to the top of the denitrification barrel; a second connecting pipe is fixedly connected to the middle of the ammonia box; the second connecting pipe is fixedly connected to the inside of the denitrification barrel; a plurality of nozzles are fixedly connected to the middle of the second connecting pipe; controlling the temperature inside the denitrification barrel through the above-mentioned structure can make the flue gas denitrification reaction proceed under the best conditions, can maintain the activity and stability of the catalyst, and can make the flue gas denitrification react thoroughly by precisely controlling the temperature inside the denitrification barrel.
[0008] Preferably, a slide groove is provided on the side wall of the denitrification barrel; a slider is slidably connected to the middle of the slide groove; a steel wire is fixedly connected to the end of the slider; the end of the steel wire is fixedly connected to the middle of the guide plate; a threaded brush is fixedly connected to the middle of the steel wire; the threaded brush is fixedly connected to the corresponding nozzle position; through the above structure, the threaded brush can effectively remove impurities in the middle of the nozzle, and effectively reduce the dirt and impurities generated inside the nozzle due to long-term operation.
[0009] Preferably, a heat conduction plate is fixedly connected to the middle of the denitrification barrel; the heat conduction plate is fixedly connected to the corresponding mesh plate position; a plurality of through holes are provided in the middle of the heat conduction plate; a first connecting pipe is fixedly connected to the middle of the denitrification barrel; the end of the first connecting pipe is fixedly connected to the middle of the smoke inlet pipe; the through holes in the above structure can effectively circulate the flue gas close to the side wall of the heat conduction plate into the interior of the denitrification barrel, so that the flue gas can have a longer residence time and sufficient mixing in the denitrification barrel.
[0010] Preferably, a fixing rod is fixedly connected to the middle part of the guide plate; the fixing rod is fixedly connected at a position close to the end of the guide plate; a second motor is fixedly connected to the end of the fixing rod; a plurality of fan blades are fixedly connected to the output end of the second motor; and the fan blades of the above structure blow air toward the ammonia spraying position, so that the ammonia sprayed from the nozzle can be evenly distributed inside the denitrification barrel, effectively increasing the contact area between the ammonia and the nitrogen oxides in the flue gas.
[0011] Preferably, one of the ends of the guide plates is fixedly connected to two first support rods; the two first support rods are arranged opposite to each other; a second support rod is fixedly connected to the end of the first support rod; and a plurality of groups of soft brushes are fixedly connected to the middle of the second support rod; through the above-mentioned structure, the plurality of groups of soft brushes are used to clean the impurities filtered out by the smoke of the first filter and the second filter, thereby reducing the accumulation of particulate matter and impurities on the surfaces of the first filter and the second filter.
[0012] Preferably, the two ends of the second support rods are fixedly connected with connecting rods; the side walls of the connecting rods are fixedly connected with scrapers; the ends of the scrapers are in contact with the surface of the heat conduction plate; through the above structure, the scrapers can effectively remove impurities and dirt accumulated on the surface of the heat conduction plate, so that the surface of the heat conduction plate remains clean and smooth.
[0013] The beneficial effects of the utility model are as follows:
[0014] 1. The utility model discloses a kind of domestic waste incineration flue gas denitrification treatment equipment, which can make the flue gas denitrification reaction proceed under the best conditions by controlling the temperature inside the denitrification barrel, can maintain the activity and stability of the catalyst, and can make the flue gas denitrification reaction proceed thoroughly by accurately controlling the temperature inside the denitrification barrel, effectively reducing the problem of nitrogen oxides in the flue gas failing to react fully.
[0015] 2. The domestic waste incineration flue gas denitrification treatment equipment described in the utility model can effectively remove impurities in the middle of the nozzle through a threaded brush, effectively reduce the dirt and impurities generated inside the nozzle due to long-term operation, effectively reduce the accumulation of impurities inside the nozzle, and effectively allow ammonia to be discharged smoothly through the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The utility model will be further described below in conjunction with the accompanying drawings.
[0017] Figure 1 It is a three-dimensional diagram of a denitration treatment device for flue gas from domestic waste incineration in the utility model;
[0018] Figure 2 It is a schematic diagram of the structure of the denitration barrel in the utility model;
[0019] Figure 3 It is a structural schematic diagram of the temperature conducting plate in the utility model;
[0020] Figure 4 It is a structural schematic diagram of the thread brush in the utility model;
[0021] Figure 5 It is a structural schematic diagram of the mesh plate of the utility model;
[0022] In the figure: 1. denitrification barrel; 10. smoke inlet pipe; 11. first motor; 12. rotating shaft; 13. guide plate; 14. water storage bag; 15. mesh plate; 16. heating wire; 17. water injection pipe; 18. drainage pipe; 19. first filter; 20. second filter; 2. slide groove; 21. slider; 22. steel wire; 23. threaded brush; 3. heat conduction plate; 31. through hole; 32. first connecting pipe; 4. fixing rod; 41. second motor; 42. fan blade; 5. first support rod; 51. second support rod; 52. soft brush; 6. connecting rod; 61. scraper; 7. ammonia box; 71. second connecting pipe; 72. nozzle. DETAILED DESCRIPTION
[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0024] like Figures 1 to 5As shown, a denitration treatment device for flue gas from incineration of domestic waste described in an embodiment of the utility model comprises a denitration barrel 1; a smoke inlet pipe 10 is fixedly connected to the middle of the denitration barrel 1; a first motor 11 is fixedly connected to the top of the denitration barrel 1; the output end of the first motor 11 passes through the top of the denitration barrel 1; a rotating shaft 12 is fixedly connected to the output end of the first motor 11; two guide plates 13 are fixedly connected to the middle of the rotating shaft 12; the guide plate 13 is arranged in the middle of the denitration barrel 1; a water storage bag 14 is fixedly connected to the side wall of the denitration barrel 1; the water storage bag 14 is fixedly connected to the inside of the denitration barrel 1; a mesh plate 15 is fixedly connected to the side wall of the denitration barrel 1; the mesh plate 15 is fixedly connected to the position corresponding to the water storage bag 14; a heating wire 16 is fixedly connected to the middle of the mesh plate 15; a water injection pipe 17 is fixedly connected to the side wall of the water storage bag 14; the water injection pipe The end of 17 passes through the middle of the denitration barrel 1; the side wall of the water storage bag 14 is fixedly connected to a drain pipe 18; the drain pipe 18 is fixedly connected to the side away from the water injection pipe 17; the end of the drain pipe 18 passes through the middle of the denitration barrel 1; the middle of the denitration barrel 1 is fixedly connected to a first filter screen 19; the guide plate 13 passes through the middle of the first filter screen 19; the first filter screen 19 is fixedly connected to the top position of the mesh plate 15; the middle of the denitration barrel 1 is fixedly connected to a second filter screen 20; the second filter screen 20 is fixedly connected to the bottom position of the mesh plate 15; the middle of the denitration barrel 1 is fixedly connected to an ammonia tank 7; the ammonia tank 7 is fixedly connected to a position close to the top of the denitration barrel 1; the middle of the ammonia tank 7 is fixedly connected to a second connecting pipe 71; the second connecting pipe 71 is fixedly connected to the inside of the denitration barrel 1; the middle of the second connecting pipe 71 is fixedly connected to a plurality of nozzles 72;During operation, the flue gas enters the denitrification barrel 1 through the smoke inlet pipe 10, and the first motor 11 is powered on and turned on to rotate the output end of the first motor 11, and the shaft 12 is driven to rotate at the same time. The flue gas is first filtered through the second filter 20, and the guide plate 13 is rotated inside the denitrification barrel 1 through the shaft 12 to make the flue gas flow evenly inside the denitrification barrel 1. When the temperature inside the denitrification barrel 1 is high, cold water is discharged to the water storage bag 14 through the water injection pipe 17, and the temperature inside the denitrification barrel 1 is reduced by the cold water inside the water storage bag 14. When the water inside the water storage bag 14 heats up, it is discharged through the drain pipe 18. When the temperature inside the denitrification barrel 1 is low, the heating wire 16 is powered on and turned on to generate heat on the surface of the heating wire 16 and discharge it to the inside of the denitrification barrel 1. Ammonia enters the second connecting pipe 71 through the ammonia box 7 and passes through the nozzle 72 discharges ammonia into the denitration barrel 1, sprays the discharged ammonia into the flue gas, reacts chemically with nitrogen oxides in the flue gas, and converts them into harmless nitrogen and water. The flue gas is then filtered twice through the first filter 19, thereby denitrifying the flue gas. By controlling the temperature inside the denitration barrel 1, the flue gas denitration reaction can be carried out under optimal conditions, the activity and stability of the catalyst can be maintained, and the temperature inside the denitration barrel 1 can be accurately controlled to allow the flue gas denitration to react thoroughly, effectively reducing the problem of nitrogen oxides in the flue gas failing to react fully, effectively improving the purity and efficiency of flue gas denitration, and effectively reducing the problem of equipment damage caused by high temperature during the denitration process inside the denitration barrel 1. In addition, the cold water inside the water storage bag 14 can effectively reduce the energy waste caused by the excessively high temperature inside the denitration barrel 1. ;
[0025] like Figures 2 to 4 As shown, a chute 2 is provided on the side wall of the denitration barrel 1; a slider 21 is slidably connected to the middle of the chute 2; a steel wire 22 is fixedly connected to the end of the slider 21; the end of the steel wire 22 is fixedly connected to the middle of the guide plate 13; a threaded brush 23 is fixedly connected to the middle of the steel wire 22; the threaded brush 23 is fixedly connected to the corresponding nozzle 72 position; during operation, when the rotating shaft 12 rotates, as the rotating shaft 12 rotates, the slider 21 slides inside the chute 2 through the steel wire 22, and the threaded brush 23 is arranged at the bottom position of the nozzle 72 and fits therewith. The inside of the nozzle 72 is cleaned by rotating the threaded brush 23, and the impurities in the middle of the nozzle 72 can be effectively removed by the threaded brush 23, and the dirt and impurities generated inside the nozzle 72 after long-term operation can be effectively reduced, and the accumulation of impurities inside the nozzle 72 can be effectively reduced, so that ammonia can be discharged smoothly through the nozzle 72, and the problems of blockage and damage caused by the accumulation of impurities inside the nozzle 72 can be effectively reduced, and the ammonia can be effectively evenly distributed and effectively mixed with the flue gas to improve the denitration efficiency.
[0026] like Figure 2 and Figure 3As shown, a heat conducting plate 3 is fixedly connected to the middle of the denitration barrel 1; the heat conducting plate 3 is fixedly connected to the corresponding mesh plate 15; a plurality of through holes 31 are provided in the middle of the heat conducting plate 3; a first connecting pipe 32 is fixedly connected to the middle of the denitration barrel 1; the end of the first connecting pipe 32 is fixedly connected to the middle of the smoke inlet pipe 10; during operation, during the denitration process of the flue gas, the temperature of the water storage bag 14 and the heating wire 16 is guided to the inside of the denitration barrel 1 through the heat conducting plate 3, and the flue gas accumulated on the side wall of the heat conducting plate 3 enters between the heat conducting plate 3 and the denitration barrel 1 through the plurality of through holes 31, and the heat conducting plate 3 and the heating wire 16 are guided to the inside of the denitration barrel 1 through the plurality of through holes 31. The flue gas between the temperature plate 3 and the denitrification barrel 1 enters the first connecting pipe 32, and is discharged into the denitrification barrel 1 through the first connecting pipe 32. The flue gas near the side wall of the temperature conduction plate 3 can be effectively circulated into the denitrification barrel 1 through the through hole 31, so that the flue gas can have a longer residence time and sufficient mixing in the denitrification barrel 1, thereby effectively increasing the contact opportunity and reaction time between the flue gas and ammonia, promoting the uniform distribution and mixing of the flue gas in the denitrification barrel 1, and effectively improving the denitrification effect of the flue gas.
[0027] like Figure 2 and Figure 4 As shown, a fixed rod 4 is fixedly connected to the middle of the guide plate 13; the fixed rod 4 is fixedly connected near the end of the guide plate 13; a second motor 41 is fixedly connected to the end of the fixed rod 4; a plurality of fan blades 42 are fixedly connected to the output end of the second motor 41; during operation, when the rotating shaft 12 rotates, the second motor 41 is driven to rotate at the same time by the fixed rod 4, and the output end of the second motor 41 is rotated after the second motor 41 is turned on, and the plurality of fixed rods 4 are rotated through the output end of the second motor 41 to blow air toward the bottom, and the fan blades 42 are used to blow air toward the ammonia spraying position, so that the ammonia sprayed from the nozzle 72 can be evenly distributed inside the denitration barrel 1, effectively increasing the contact area between the ammonia and the nitrogen oxides in the flue gas, effectively improving the efficiency and effect of the flue gas denitration reaction, and accelerating the mixing speed of the ammonia and the flue gas, thereby reducing the energy consumption during the flue gas denitration process.
[0028] like Figures 2 to 4As shown, one end of the guide plate 13 is fixedly connected to two first support rods 5; the two first support rods 5 are arranged opposite to each other; the end of the first support rod 5 is fixedly connected to a second support rod 51; the middle of the second support rod 51 is fixedly connected to a plurality of groups of soft brushes 52; when the guide plate 13 is working, the first support rod 5 drives the second support rod 51 to rotate at the same time, and the plurality of groups of soft brushes 52 contact the surfaces of the first filter screen 19 and the second filter screen 20, and the surfaces of the first filter screen 19 and the second filter screen 20 are cleaned by the soft brushes 52, and the plurality of groups of soft brushes are used to clean the surfaces of the first filter screen 19 and the second filter screen 20. The brush 52 cleans the impurities filtered by the flue gas of the first filter 19 and the second filter 20, reduces the accumulation of particulate matter and impurities on the surface of the first filter 19 and the second filter 20, can timely clean the surface of the first filter 19 and the second filter 20, reduces the problem of blockage caused by the accumulation of impurities and particulate matter on the surface of the first filter 19 and the second filter 20, can reduce the blockage of the surface of the first filter 19 and the second filter 20 resulting in the non-circulation of flue gas inside the denitrification barrel 1, and can effectively reduce the accumulation of impurities and particulate matter on the surface of the first filter 19 and the second filter 20 to cause wear and damage.
[0029] like Figure 2 and Figure 4 As shown, the ends of the two second support rods 51 are fixedly connected to a connecting rod 6; the side walls of the connecting rods 6 are fixedly connected to a scraper 61; the ends of the scraper 61 are in contact with the surface of the heat conducting plate 3; during operation, as the two second support rods 51 rotate, the connecting rods 6 are driven to rotate at the same time, and the surface of the heat conducting plate 3 is cleaned during the rotation of the scraper 61 through the connecting rod 6. The scraper 61 can effectively remove impurities and dirt accumulated on the surface of the heat conducting plate 3, so that the surface of the heat conducting plate 3 remains clean and smooth, effectively reducing the resistance to temperature transfer, effectively improving the conduction efficiency of the heat conducting plate 3, and effectively reducing the accumulation of impurities and dirt that causes corrosion and wear on the surface of the heat conducting plate 3, which can effectively extend the service life of the heat conducting plate 3.
[0030] During operation, the flue gas enters the denitration barrel 1 through the smoke inlet pipe 10, and the first motor 11 is powered on and turned on to rotate the output end of the first motor 11, and the shaft 12 is driven to rotate at the same time. The flue gas is first filtered through the second filter 20, and the guide plate 13 is rotated inside the denitration barrel 1 through the shaft 12 to make the flue gas flow evenly inside the denitration barrel 1. When the temperature inside the denitration barrel 1 is high, cold water is discharged to the water storage bag 14 through the water injection pipe 17, and the temperature inside the denitration barrel 1 is reduced by the cold water inside the water storage bag 14. When the water inside the water storage bag 14 heats up, it is discharged through the drain pipe 18. When the temperature inside the denitration barrel 1 is high, the water inside the water storage bag 14 is cooled and discharged through the drain pipe 18. 1, when the temperature inside is low, the heating wire 16 is powered on and turned on, so that the surface of the heating wire 16 generates heat and discharges it into the denitration barrel 1, and the ammonia enters the second connecting pipe 71 through the ammonia box 7, and the ammonia is discharged into the denitration barrel 1 through the nozzle 72. The discharged ammonia is sprayed into the flue gas, and a chemical reaction occurs with the nitrogen oxides in the flue gas, converting them into harmless nitrogen and water. The flue gas is then filtered twice through the first filter 19, so that the flue gas is denitrated. When the shaft 12 rotates, the slider 21 slides inside the slide groove 2 through the steel wire 22 as the shaft 12 rotates, and the threaded brush 23 It is arranged at the bottom of the nozzle 72 and fits with it. The inside of the nozzle 72 is cleaned by rotating the threaded brush 23. During the denitration process of the flue gas, the temperature of the water storage bag 14 and the heating wire 16 is guided to the inside of the denitration barrel 1 through the heat conduction plate 3. The flue gas accumulated on the side wall of the heat conduction plate 3 enters between the heat conduction plate 3 and the denitration barrel 1 through multiple groups of through holes 31. The flue gas between the heat conduction plate 3 and the denitration barrel 1 enters the inside of the first connecting pipe 32. Through the first connecting pipe 32, the flue gas enters the middle of the smoke inlet pipe 10 again and is discharged to the inside of the denitration barrel 1. When the rotating shaft 12 rotates, the second motor 41 is driven to rotate simultaneously through the fixing rod 4. The second motor 41 is turned on to rotate the output end, and the multiple fixed rods 4 are rotated through the output end of the second motor 41 to blow air toward the bottom. When the guide plate 13 rotates, the second support rod 51 is driven to rotate at the same time through the first support rod 5, and the surfaces of the first filter 19 and the second filter 20 are contacted through multiple groups of soft brushes 52. The surfaces of the first filter 19 and the second filter 20 are cleaned by the soft brushes 52. As the two second support rods 51 rotate, the connecting rod 6 is also driven to rotate, and the surface of the heat conduction plate 3 is cleaned during the rotation of the scraper 61 through the connecting rod 6.
[0031] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A denitration treatment device for flue gas from the incineration of domestic waste, comprising a denitration barrel (1); characterized in that: A smoke inlet pipe (10) is fixedly connected to the middle of the denitration barrel (1); a first motor (11) is fixedly connected to the top of the denitration barrel (1); an output end of the first motor (11) passes through the top of the denitration barrel (1); a rotating shaft (12) is fixedly connected to the output end of the first motor (11); two guide plates (13) are fixedly connected to the middle of the rotating shaft (12); the guide plates (13) are arranged in the middle of the denitration barrel (1); and a side wall of the denitration barrel (1) is fixedly connected to the side wall of the denitration barrel (1). A water storage bag (14) is connected; the water storage bag (14) is fixedly connected to the inside of the denitration barrel (1); a mesh plate (15) is fixedly connected to the side wall of the denitration barrel (1); the mesh plate (15) is fixedly connected to the position corresponding to the water storage bag (14); a heating wire (16) is fixedly connected to the middle of the mesh plate (15); a water injection pipe (17) is fixedly connected to the side wall of the water storage bag (14); the end of the water injection pipe (17) passes through the middle of the denitration barrel (1); the water storage bag ( 14) A drainage pipe (18) is fixedly connected to the side wall; the drainage pipe (18) is fixedly connected to the side away from the water injection pipe (17); the end of the drainage pipe (18) passes through the middle of the denitration barrel (1); a first filter screen (19) is fixedly connected to the middle of the denitration barrel (1); the guide plate (13) passes through the middle of the first filter screen (19); the first filter screen (19) is fixedly connected to the top position of the mesh plate (15); the middle of the denitration barrel (1) is fixedly connected to the second filter screen (19); The filter screen (20) is fixedly connected to the bottom of the mesh plate (15); the middle of the denitration barrel (1) is fixedly connected to an ammonia box (7); the ammonia box (7) is fixedly connected to a position close to the top of the denitration barrel (1); the middle of the ammonia box (7) is fixedly connected to a second connecting pipe (71); the second connecting pipe (71) is fixedly connected to the inside of the denitration barrel (1); and the middle of the second connecting pipe (71) is fixedly connected to a plurality of nozzles (72).
2. A domestic waste incineration flue gas denitrification treatment equipment according to claim 1, characterized in that: The side wall of the denitrification barrel (1) is provided with a slide groove (2); a slider (21) is slidably connected to the middle of the slide groove (2); a steel wire (22) is fixedly connected to the end of the slider (21); the end of the steel wire (22) is fixedly connected to the middle of the guide plate (13); a threaded brush (23) is fixedly connected to the middle of the steel wire (22); the threaded brush (23) is fixedly connected to the corresponding nozzle (72) position.
3. A domestic waste incineration flue gas denitrification treatment equipment according to claim 2, characterized in that: A heat conduction plate (3) is fixedly connected to the middle of the denitration barrel (1); the heat conduction plate (3) is fixedly connected to the corresponding mesh plate (15); a plurality of through holes (31) are provided in the middle of the heat conduction plate (3); a first connecting pipe (32) is fixedly connected to the middle of the denitration barrel (1); an end of the first connecting pipe (32) is fixedly connected to the middle of the smoke inlet pipe (10).
4. A domestic waste incineration flue gas denitrification treatment equipment according to claim 3, characterized in that: A fixing rod (4) is fixedly connected to the middle of the guide plate (13); the fixing rod (4) is fixedly connected to a position close to the end of the guide plate (13); a second motor (41) is fixedly connected to the end of the fixing rod (4); and a plurality of fan blades (42) are fixedly connected to the output end of the second motor (41).
5. A domestic waste incineration flue gas denitrification treatment equipment according to claim 4, characterized in that: Two first support rods (5) are fixedly connected to the end of one of the guide plates (13); the two first support rods (5) are arranged opposite to each other; a second support rod (51) is fixedly connected to the end of the first support rod (5); and a plurality of groups of soft brushes (52) are fixedly connected to the middle of the second support rod (51).
6. A domestic waste incineration flue gas denitrification treatment equipment according to claim 5, characterized in that: The ends of the two second support rods (51) are fixedly connected to a connecting rod (6); the side walls of the connecting rod (6) are fixedly connected to a scraper (61); and the ends of the scraper (61) are in contact with the surface of the heat conducting plate (3).