A precise ammonia injection and efficient denitrification system for waste incinerators

Abstract

The present invention relates to the technical field of flue gas treatment equipment, and more specifically, to a precise ammonia spraying and efficient denitrification system for a garbage incinerator, comprising a smoke chamber, a spraying device arranged inside the smoke chamber, and a stamping device arranged outside the smoke chamber. The precise ammonia spraying and efficient denitrification system for a garbage incinerator, when the garbage incinerator is working, the generated flue gas enters the interior of the fixed chamber through the smoke inlet pipe, and then contacts the pipe wall blades in the rotating mechanism, driving the rotating pipe together with the pipe wall blades to rotate, and the pipe wall blades will continuously disturb the flue gas, and the spray head will also spray ammonia water toward the flowing flue gas as the rotating pipe rotates, and while adapting to flue gas with different flow rates, the spraying position will also be continuously adjusted, so that the sprayed ammonia water can be mixed with the flue gas more evenly.

Description

Technical Field

[0001] The present invention relates to the technical field of flue gas treatment equipment, and in particular to a precise ammonia spraying and efficient denitrification system for a garbage incinerator. Background Art

[0002] The precise ammonia injection and efficient denitrification technology for waste incinerators uses high-precision sensors to monitor the concentration of nitrogen oxides in flue gas in real time, and intelligently adjusts the amount of ammonia water spray to ensure that ammonia and flue gas are evenly mixed to achieve efficient denitrification. This technology can effectively reduce ammonia escape, reduce operating costs, and increase denitrification efficiency to more than 99%, meeting the dual needs of modern industry for environmental protection and energy conservation. The application of precise ammonia injection technology marks an important step forward for the waste incineration industry in controlling nitrogen oxide emissions.

[0003] The patent with publication number CN109464900B discloses a spray gun control method for SNCR denitrification in the furnace of a waste incineration power plant, including a control system, a flue gas analysis system, and a temperature measurement system. The temperature measurement system includes a temperature measuring device arranged on the inner side of the top of the flue of the incinerator and a high-temperature temperature measuring device arranged in the high-temperature zone of the furnace. According to the linear relationship between elevation and temperature, by measuring the temperature on the inner side of the top of the flue and the temperature in the high-temperature zone of the furnace, the elevation of the optimal reaction area is calculated, so that the reducing agent is sprayed in this area.

[0004] However, traditional ammonia spraying equipment usually adopts a fixed spraying method, and the position of the spray head is fixed, resulting in a relatively fixed spraying range and spraying angle of ammonia. This design method has obvious limitations, because it will cause the ammonia concentration in some areas of the flue gas to be too high, forming a local excess, while other areas may have insufficient ammonia supply and cannot fully react with NOx in the flue gas. This uneven distribution of ammonia will directly affect the subsequent denitrification effect; in addition, traditional ammonia spraying equipment usually needs to rely on external energy to drive the spraying system, which not only increases the cost of the overall equipment, but also appears to be relatively low in energy utilization efficiency.

[0005] In view of this, we propose a precise ammonia injection and efficient denitrification system for waste incinerators. Summary of the invention

[0006] The object of the present invention is to provide a waste incinerator precise ammonia injection and efficient denitrification system to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A precise ammonia spraying and efficient denitrification system for a garbage incinerator, comprising a smoke chamber, a spraying device arranged inside the smoke chamber, and a stamping device arranged outside the smoke chamber;

[0009] The smoke chamber comprises a fixed chamber body, an outward convex chamber body arranged on the chamber walls at the left and right ends of the fixed chamber body, an outward convex strip arranged on the inner side wall of one group of the outward convex chamber bodies, and a plurality of docking rods arranged on the outer side walls of the outward convex strips;

[0010] The spray device comprises two groups of symmetrically arranged moving mechanisms and a rotating mechanism arranged between the two groups of moving mechanisms;

[0011] The moving mechanism comprises a moving frame arranged inside the outer convex bin body, a moving slider arranged inside the moving frame, a horizontal bending plate arranged on the outer side walls at the front and rear ends of the moving frame, and a longitudinal bending plate arranged on the outer side walls at the upper and lower ends of the moving slider;

[0012] The rotating mechanism includes a rotating tube, a plurality of tube wall blades regularly arranged on the outer side wall of the rotating tube, a plurality of sprinkler heads regularly arranged on the outer side wall of the rotating tube, a tube wall gear arranged on the outer side wall of one end of the rotating tube, and a rotating disk arranged on the other end of the rotating tube;

[0013] The punching device includes a pushing part, two groups of liquid storage tanks arranged on the bottom surface of the fixed warehouse body, a vent pipe arranged between the liquid storage tank and the pushing part, a liquid outlet pipe arranged between the two groups of liquid storage tanks, and an outer sleeve arranged at the end of the liquid outlet pipe.

[0014] The pushing part includes a sealing cover body, an air inlet valve arranged on the top surface of the sealing cover body, an air outlet valve arranged on the bottom surface of the sealing cover body, a piston plate arranged inside the sealing cover body, a pushing plate that moves with the movement of the piston plate, and a pressure spring arranged on the outer side wall of the piston plate.

[0015] In the technical solution of the present invention, the convex bin body is fixedly connected to the outer wall of the fixed bin body by bolts, the inner wall of the convex bin body is provided with a bin wall groove with a circular longitudinal cross-section, and the convex strip is welded and fixed to the inner wall of the convex bin body.

[0016] In the technical solution of the present invention, several of the docking rods are welded and fixed to the outer side wall of the outer convex strip, the rear end side wall of the fixed warehouse body is flange-connected with a smoke inlet pipe connected to the smoke outlet of the garbage incinerator, and the front end side wall of the fixed warehouse body is flange-connected with a smoke outlet pipe.

[0017] In the technical solution of the present invention, the movable frame is slidably connected to the interior of the convex warehouse body, the interior of the movable frame is provided with a frame slide groove for providing a sliding range for the movable slider, and the interior of the movable slider is provided with a block through hole that passes through left and right.

[0018] In the technical solution of the present invention, the two ends of the horizontal bending plate are respectively adhered and fixed to the outer wall of the movable frame and the inner wall of the convex bin body, and the two ends of the vertical bending plate are respectively adhered and fixed to the inner groove wall of the frame slide groove and the outer wall of the movable slider.

[0019] In the technical solution of the present invention, the left and right ends of the rotating tube are respectively rotatably connected to the inside of the block through hole, one end of the rotating tube is integrally formed with a tube end protrusion, the tube wall fan blades are clamped and fixed on the outer wall of the rotating tube, and the sprinkler head is threadedly connected to the outer wall of the rotating tube.

[0020] In the technical solution of the present invention, the tube wall gear is fixedly connected to the outer wall of the rotating tube by a bayonet pin, the tube wall gear is meshed with a plurality of the docking rods, the rotating disk is integrally formed with the rotating tube, and a liquid through hole with a cross-shaped longitudinal cross-section is provided inside the rotating disk.

[0021] In the technical solution of the present invention, the sealing cover is snap-fitted and fixed to the outer wall of the convex chamber, the air inlet valve and the air outlet valve are both threadedly connected to the outer wall of the sealing cover, and the piston plate is slidably connected to the interior of the sealing cover.

[0022] In the technical solution of the present invention, a plurality of connecting rods are clamped and fixed between the piston plate and the push plate, the push plate is slidably connected to the inside of the convex housing, and the two ends of the pressure spring are respectively welded and fixed to the inner wall of the sealing cover body and the outer wall of the piston plate.

[0023] In the technical solution of the present invention, the liquid storage tank is fixedly connected to the bottom surface of the fixed warehouse body by bolts, the top end of the ventilation pipe is clamped and fixed to the bottom of the outlet valve, the bottom end of the ventilation pipe extends to the interior of the liquid storage tank, and the two ends of the liquid outlet pipe are respectively clamped and fixed to the liquid storage tank and the outer sleeve, the outer sleeve is sleeved on the outside of the rotating disk, the outer sleeve is clamped and fixed to the outer side wall of the movable slider, and the outer side wall of the outer sleeve is integrally formed with a barrel wall convex shaft extending to the inside of the warehouse wall slide groove.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The waste incinerator has a precise ammonia spraying and efficient denitrification system. When the waste incinerator is working, the flue gas generated enters the fixed bin through the smoke inlet pipe, and then contacts the tube wall blades in the rotating mechanism, driving the rotating tube together with the tube wall blades to rotate. The tube wall blades will continuously disturb the flue gas, and the sprinkler head will also spray ammonia water toward the flowing flue gas as the rotating tube rotates. While adapting to the flue gas with different flow rates, the spraying position will also be continuously adjusted, so that the sprayed ammonia water can be mixed with the flue gas more evenly.

[0026] 2. The precise ammonia spraying and efficient denitrification system of the waste incinerator, when the rotating mechanism rotates between the two sets of moving mechanisms, the pipe wall gear will continuously change its position after contacting the docking rod, and drive the moving frame as a whole to move back and forth inside the convex bin body, and then cooperate with the pushing part to intermittently punch toward the inside of the liquid storage tank, and reduce the investment in external punching equipment by utilizing the kinetic energy of the flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0029] Figure 3 It is a schematic cross-sectional view of the structure of the cigarette bin in the present invention;

[0030] Figure 4 It is a partial structural schematic diagram of the cigarette bin in the present invention;

[0031] Figure 5 It is a structural schematic diagram of the spray device in the present invention;

[0032] Figure 6 It is a structural schematic diagram of the moving mechanism in the present invention;

[0033] Figure 7 It is a structural schematic diagram of the rotating mechanism in the present invention;

[0034] Figure 8 For the present invention Figure 7 A magnified schematic diagram of part A;

[0035] Fig. 9 It is a structural schematic diagram of the punching device in the present invention;

[0036] Fig.10 It is a schematic cross-sectional view of the structure of the pushing part in the present invention;

[0037] Fig.11 It is a partial structural schematic diagram of the punching device in the present invention;

[0038] Description of reference numerals:

[0039] 100, smoke chamber; 110, fixed chamber body; 120, outward convex chamber body; 121, chamber wall slide groove; 130, outward convex strip; 140, docking rod; 150, smoke inlet pipe; 160, smoke outlet pipe;

[0040] 200, spray device; 210, moving mechanism; 211, moving frame; 2110, frame slide; 212, moving slider; 2120, block through hole; 213, horizontal bending plate; 214, vertical bending plate; 220, rotating mechanism; 221, rotating tube; 2210, tube end protruding rod; 222, tube wall fan blade; 223, spray head; 224, tube wall gear; 225, rotating disk; 2250, liquid through hole;

[0041] 300, punching device; 310, pushing part; 311, sealing cover; 312, air inlet valve; 313, air outlet valve; 314, piston plate; 315, connecting rod; 316, pushing plate; 317, pressure spring; 320, liquid storage tank; 330, ventilation pipe; 340, liquid outlet pipe; 350, outer sleeve; 351, cylinder wall cam. DETAILED DESCRIPTION

[0042] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] See also Figure 1-Figure 11 As shown, this embodiment provides a technical solution:

[0044] A precise ammonia spraying and efficient denitrification system for a garbage incinerator comprises a smoke chamber 100, a spraying device 200 arranged inside the smoke chamber 100, and a stamping device 300 arranged outside the smoke chamber 100;

[0045] In the present invention, the smoke chamber 100 includes a fixed chamber body 110, a convex chamber body 120 disposed on the chamber walls at the left and right ends of the fixed chamber body 110, a convex strip 130 disposed on the inner side wall of one group of the convex chamber bodies 120, and a plurality of docking rods 140 disposed on the outer side wall of the convex strip 130;

[0046] Specifically, the convex bin body 120 is fixedly connected to the outer wall of the fixed bin body 110 by bolts, a bin wall slide groove 121 with a circular longitudinal cross-section is opened on the inner wall of the convex bin body 120, and the outer convex strip 130 is welded and fixed to the inner wall of the convex bin body 120.

[0047] Furthermore, a plurality of docking rods 140 are welded and fixed to the outer wall of the outer convex strip 130 , a smoke inlet pipe 150 connected to the smoke outlet of the garbage incinerator is flange-connected on the rear end side wall of the fixed bin body 110 , and a smoke outlet pipe 160 is flange-connected on the front end side wall of the fixed bin body 110 .

[0048] Furthermore, the smoke generated by the operation of the waste incinerator enters the interior of the fixed bin body 110 through the smoke inlet pipe 150 and is discharged from the interior of the fixed bin body 110 through the smoke outlet pipe 160. The convex bin body 120 is used to increase the moving range of the structure in the spray device 200. The convex strips 130 are used to increase the fixed platform for a plurality of docking rods 140. The plurality of docking rods 140 are used to interfere with the structure in the spray device 200.

[0049] In this embodiment, Figure 5-Figure 8 As shown, the spray device 200 includes two groups of symmetrically arranged moving mechanisms 210 and a rotating mechanism 220 arranged between the two groups of moving mechanisms 210;

[0050] Specifically, the moving mechanism 210 includes a moving frame 211 arranged inside the convex bin body 120, a moving slider 212 arranged inside the moving frame 211, a horizontal bending plate 213 arranged on the outer walls at the front and rear ends of the moving frame 211, and a longitudinal bending plate 214 arranged on the outer walls at the upper and lower ends of the moving slider 212.

[0051] Furthermore, the movable frame 211 is slidably connected to the interior of the convex bin body 120 , and a frame slide groove 2110 for providing a sliding range for the movable slider 212 is opened inside the movable frame 211 , and a block through hole 2120 penetrating left and right is opened inside the movable slider 212 .

[0052] Furthermore, the two ends of the horizontal bending plate 213 are respectively adhered and fixed to the outer wall of the movable frame 211 and the inner wall of the convex bin body 120, and the two ends of the vertical bending plate 214 are respectively adhered and fixed to the inner groove wall of the frame slide groove 2110 and the outer wall of the movable slider 212.

[0053] Furthermore, during the movement of the rotating mechanism 220 as a whole, the movable slider 212 is driven to move up and down inside the frame slide groove 2110, and the movable frame 211 is driven to move forward and backward inside the convex bin body 120. The block through hole 2120 is used to provide a rotation range for the rotating mechanism 220 as a whole. The horizontal bending plate 213 and the longitudinal bending plate 214 are both used to prevent smoke from entering the interior of the convex bin body 120.

[0054] In this embodiment, Figure 7-Figure 8 As shown, the rotating mechanism 220 includes a rotating tube 221, a plurality of tube wall blades 222 regularly arranged on the outer wall of the rotating tube 221, a plurality of spray heads 223 regularly arranged on the outer wall of the rotating tube 221, a tube wall gear 224 arranged on the outer wall of one end of the rotating tube 221, and a rotating disk 225 arranged on the other end of the rotating tube 221;

[0055] Specifically, the left and right ends of the rotating tube 221 are respectively rotatably connected to the inside of the block through hole 2120, one end of the rotating tube 221 is integrally formed with a tube end protrusion 2210, the tube wall fan blades 222 are clamped and fixed on the outer wall of the rotating tube 221, and the spray head 223 is threadedly connected to the outer wall of the rotating tube 221.

[0056] Furthermore, the tube wall gear 224 is fixedly connected to the outer wall of the rotating tube 221 by a bayonet, the tube wall gear 224 is meshed with a plurality of docking rods 140, the rotating disk 225 is integrally formed with the rotating tube 221, and a liquid through hole 2250 with a cross-shaped longitudinal section is opened inside the rotating disk 225.

[0057] Furthermore, during the process of smoke flowing inside the fixed warehouse body 110, the smoke moves the tube wall blades 222, thereby driving the rotating tube 221 to rotate, and then driving the tube wall gear 224 to rotate. After the tube wall gear 224 collides with the docking rod 140, it drives the rotating tube 221 and the rotating mechanism 220 to move along the trajectory of the warehouse wall groove 121 as a whole; at this time, the tube wall blades 222 continuously disturb the flowing smoke, and ammonia water is sprayed toward the smoke from a plurality of spray heads 223. The tube end protrusion 2210 on the rotating tube 221 extends to the inside of the warehouse wall groove 121 to limit the overall moving trajectory of the rotating mechanism 220, and the liquid hole 2250 on the rotating disk 225 is used to allow ammonia water to be intermittently delivered into the inside of the rotating tube 221.

[0058] In this embodiment, Figure 9-11 As shown, the punching device 300 includes a pushing portion 310, two groups of liquid storage tanks 320 disposed on the bottom surface of the fixed bin body 110, a vent pipe 330 disposed between the liquid storage tank 320 and the pushing portion 310, a liquid outlet pipe 340 disposed between the two groups of liquid storage tanks 320, and an outer sleeve 350 disposed at the end of the liquid outlet pipe 340.

[0059] Specifically, the pushing portion 310 includes a sealing cover body 311, an air inlet valve 312 arranged on the top surface of the sealing cover body 311, an air outlet valve 313 arranged on the bottom surface of the sealing cover body 311, a piston plate 314 arranged inside the sealing cover body 311, a pushing plate 316 that moves with the movement of the piston plate 314, and a pressure spring 317 arranged on the outer wall of the piston plate 314.

[0060] Furthermore, the sealing cover body 311 is clamped and fixed on the outer wall of the convex chamber body 120 , the air inlet valve 312 and the air outlet valve 313 are both threadedly connected to the outer wall of the sealing cover body 311 , and the piston plate 314 is slidably connected to the inside of the sealing cover body 311 .

[0061] Furthermore, a plurality of connecting rods 315 are clamped and fixed between the piston plate 314 and the push plate 316. The push plate 316 is slidably connected to the inside of the convex bin body 120. Both ends of the pressure spring 317 are welded and fixed to the inner wall of the sealing cover body 311 and the outer wall of the piston plate 314 respectively.

[0062] Furthermore, during the movement of the outer sleeve 350 fixed on the outer wall of the movable slider 212 along the track of the warehouse wall slide groove 121, the piston plate 314 is driven to move inside the sealing cover body 311 through the push plate 316. Subsequently, the piston plate 314 returns to its original position under the action of the pressure spring 317. During the reciprocating movement of the piston plate 314, the ammonia in the external ammonia storage tank enters the interior of the liquid storage tank 320 through the air inlet valve 312, thereby increasing the air pressure inside the liquid storage tank 320, allowing the ammonia water in the liquid storage tank 320 to enter the interior of the outer sleeve 350 through the liquid outlet pipe 340. The air inlet valve 312 is used to connect to the gas tank storing ammonia.

[0063] In this embodiment, Figure 9-11 As shown, the liquid storage tank 320 is fixedly connected to the bottom surface of the fixed warehouse body 110 by bolts, the top end of the ventilation pipe 330 is clamped and fixed to the bottom of the air outlet valve 313, and the bottom end of the ventilation pipe 330 extends to the inside of the liquid storage tank 320. The two ends of the liquid outlet pipe 340 are clamped and fixed to the liquid storage tank 320 and the outer sleeve 350 respectively. The outer sleeve 350 is sleeved on the outside of the rotating disk 225. The outer sleeve 350 is clamped and fixed to the outer wall of the movable slider 212. The outer wall of the outer sleeve 350 is integrally formed with a barrel wall convex shaft 351 extending to the inside of the warehouse wall slide groove 121.

[0064] Furthermore, the liquid storage tank 320 is used to store ammonia water, the vent pipe 330 is used to allow ammonia gas to enter the interior of the liquid storage tank 320, the liquid outlet pipe 340 is used to allow ammonia water to enter the interior of the outer sleeve 350 from the liquid storage tank 320, and the cylinder wall convex shaft 351 is used to limit the movement trajectory of the outer sleeve 350.

[0065] When the waste incinerator precise ammonia injection and efficient denitrification system of the present invention is in use, the smoke generated by the waste incinerator enters the interior of the fixed bin body 110 through the smoke inlet pipe 150 and is discharged from the interior of the fixed bin body 110 through the smoke outlet pipe 160;

[0066] When the smoke flows inside the fixed bin body 110, the smoke moves the pipe wall blades 222, which drives the rotating pipe 221 to rotate, and then drives the pipe wall gear 224 to rotate. After the pipe wall gear 224 contacts the docking rod 140, the rotating pipe 221 and the rotating mechanism 220 as a whole move along the track of the bin wall slide groove 121.

[0067] At this time, the pipe wall blades 222 continuously disturb the flowing flue gas, and when the rotating disk 225 rotates inside the outer sleeve 350, the ammonia water in the liquid storage tank 320 enters the inner part of the outer sleeve 350 from the liquid outlet pipe 340, and enters the inner part of the rotating pipe 221 through the liquid hole 2250, and the ammonia water is then sprayed toward the flue gas from the plurality of spray heads 223;

[0068] During the movement of the rotating tube 221, the position of the moving slider 212 inside the moving frame 211 is changed, and the position of the moving frame 211 is moved left and right inside the convex bin body 120;

[0069] When the outer sleeve 350 fixed on the outer wall of the movable slider 212 moves along the track of the bin wall slide groove 121, the piston plate 314 is driven to move inside the sealing cover 311 through the push plate 316;

[0070] Subsequently, the piston plate 314 returns to its original position under the action of the pressure spring 317. During the reciprocating movement of the piston plate 314, the ammonia gas in the external ammonia storage tank enters the interior of the liquid storage tank 320 through the inlet valve 312, thereby increasing the air pressure inside the liquid storage tank 320, allowing the ammonia water in the liquid storage tank 320 to enter the interior of the outer sleeve 350 through the liquid outlet pipe 340.

[0071] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the specification and its equivalents.

Claims

1. A precise ammonia spraying and efficient denitrification system for a garbage incinerator, comprising a smoke chamber (100), a spraying device (200) arranged inside the smoke chamber (100), and a punching device (300) arranged outside the smoke chamber (100); Features: The cigarette storage bin (100) comprises a fixed storage body (110), an outwardly protruding storage body (120) arranged on the storage walls at the left and right ends of the fixed storage body (110), an outwardly protruding strip (130) arranged on the inner side wall of one group of the outwardly protruding storage bodies (120), and a plurality of connecting rods (140) arranged on the outer side walls of the outwardly protruding strips (130); The outer convex bin body (120) is fixedly connected to the outer wall of the fixed bin body (110) by means of bolts, the inner wall of the outer convex bin body (120) is provided with a bin wall slide groove (121) having a circular longitudinal cross section, and the outer convex strip (130) is welded and fixed to the inner wall of the outer convex bin body (120); The plurality of docking rods (140) are all welded and fixed to the outer side wall of the outer convex strip (130); The spray device (200) comprises two groups of symmetrically arranged moving mechanisms (210) and a rotating mechanism (220) arranged between the two groups of moving mechanisms (210); The moving mechanism (210) comprises a moving frame (211) disposed inside the outer convex bin body (120), a moving slider (212) disposed inside the moving frame (211), a transverse bending plate (213) disposed on the outer side walls at the front and rear ends of the moving frame (211), and a longitudinal bending plate (214) disposed on the outer side walls at the upper and lower ends of the moving slider (212); The rotating mechanism (220) comprises a rotating tube (221), a plurality of tube wall blades (222) regularly arranged on the outer wall of the rotating tube (221), a plurality of spray heads (223) regularly arranged on the outer wall of the rotating tube (221), a tube wall gear (224) arranged on the outer wall of one end of the rotating tube (221), and a rotating disk (225) arranged on the other end of the rotating tube (221); The tube wall gear (224) is fixedly connected to the outer wall of the rotating tube (221) via a bayonet pin, and the tube wall gear (224) is meshed with a plurality of the docking rods (140); During the process of smoke flowing inside the fixed bin body (110), the smoke moves the tube wall blades (222), thereby driving the rotating tube (221) to rotate, and further driving the tube wall gear (224) to rotate. After the tube wall gear (224) contacts the docking rod (140), the rotating tube (221) and the rotating mechanism (220) are driven to move along the track of the bin wall slide groove (121), and the tube wall blades (222) continuously disturb the flowing smoke. The punching device (300) comprises a pushing portion (310), two groups of liquid storage tanks (320) arranged on the bottom surface of the fixed bin body (110), a vent pipe (330) arranged between the liquid storage tank (320) and the pushing portion (310), a liquid outlet pipe (340) arranged between the two groups of liquid storage tanks (320), and an outer sleeve (350) arranged at the end of the liquid outlet pipe (340); The pushing portion (310) comprises a sealing cover body (311), an air inlet valve (312) arranged on the top surface of the sealing cover body (311), an air outlet valve (313) arranged on the bottom surface of the sealing cover body (311), a piston plate (314) arranged inside the sealing cover body (311), a pushing plate (316) that moves with the movement of the piston plate (314), and a pressure spring (317) arranged on the outer side wall of the piston plate (314).

2. The waste incinerator precise ammonia injection and high-efficiency denitrification system according to claim 1 is characterized by: A smoke inlet pipe (150) connected to the smoke outlet of the garbage incinerator is flange-connected to the rear end side wall of the fixed bin body (110), and a smoke outlet pipe (160) is flange-connected to the front end side wall of the fixed bin body (110).

3. The waste incinerator precise ammonia injection and high-efficiency denitrification system according to claim 1 is characterized by: The movable frame (211) is slidably connected to the interior of the convex bin body (120); a frame slide groove (2110) for providing a sliding range for the movable slider (212) is provided inside the movable frame (211); and a block through hole (2120) penetrating left and right is provided inside the movable slider (212).

4. The waste incinerator precise ammonia injection and high-efficiency denitrification system according to claim 3 is characterized by: The two ends of the transverse bending plate (213) are respectively bonded and fixed to the outer wall of the movable frame (211) and the inner wall of the convex bin body (120), and the two ends of the longitudinal bending plate (214) are respectively bonded and fixed to the inner groove wall of the frame slide groove (2110) and the outer wall of the movable slider (212).

5. The precise ammonia injection and efficient denitrification system for a waste incinerator according to claim 4 is characterized in that: The left and right ends of the rotating tube (221) are respectively rotatably connected to the inside of the block through hole (2120); one end of the rotating tube (221) is integrally formed with a tube end protruding rod (2210); the tube wall blades (222) are clamped and fixed on the outer wall of the rotating tube (221); and the spray head (223) is threadedly connected to the outer wall of the rotating tube (221).

6. The precise ammonia injection and efficient denitrification system for a waste incinerator according to claim 1 is characterized by: The rotating disk (225) and the rotating tube (221) are integrally formed, and a liquid passage hole (2250) having a cross-shaped longitudinal cross section is provided inside the rotating disk (225).

7. The waste incinerator precise ammonia injection and high-efficiency denitrification system according to claim 1 is characterized by: The sealing cover body (311) is fixedly connected to the outer wall of the outer convex chamber body (120), the air inlet valve (312) and the air outlet valve (313) are both threadedly connected to the outer wall of the sealing cover body (311), and the piston plate (314) is slidably connected to the interior of the sealing cover body (311).

8. The precise ammonia injection and efficient denitrification system for a waste incinerator according to claim 1 is characterized by: A plurality of connecting rods (315) are clamped and fixed between the piston plate (314) and the push plate (316); the push plate (316) is slidably connected to the interior of the convex housing (120); and two ends of the pressure spring (317) are respectively welded and fixed to the inner wall of the sealing cover (311) and the outer wall of the piston plate (314).

9. The precise ammonia injection and efficient denitrification system for a waste incinerator according to claim 1 is characterized by: The liquid storage tank (320) is fixedly connected to the bottom surface of the fixed warehouse body (110) by bolts, the top end of the ventilation pipe (330) is clamped and fixed to the bottom of the air outlet valve (313), and the bottom end of the ventilation pipe (330) extends to the interior of the liquid storage tank (320). The two ends of the liquid outlet pipe (340) are clamped and fixed to the liquid storage tank (320) and the outer sleeve (350) respectively. The outer sleeve (350) is sleeved on the outside of the rotating disk (225), and the outer sleeve (350) is clamped and fixed to the outer wall of the movable slider (212). The outer wall of the outer sleeve (350) is integrally formed with a barrel wall convex shaft (351) extending to the interior of the warehouse wall slide groove (121).

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