Waste incineration system and method capable of efficiently reducing emission of nitrogen oxides

Abstract

The invention discloses a waste incineration system and method for efficiently reducing emission of nitrogen oxides, and relates to the technical field of waste incineration. Comprising an incinerator, an incineration base is arranged in the incinerator, a smoke channel is formed in the incinerator, and a waste heat boiler is arranged at the top of the smoke channel; a scraping plate is arranged in one end of the incinerator, and a fixing mechanism is arranged at one end of the incinerator and used for fixing the scraping plate; stirring mechanisms are arranged on the two sides of the incinerator and used for stirring garbage. An end plate is arranged on the incinerator in a sliding fit mode, an executing mechanism is arranged on the end plate and comprises a lifting frame installed on the end plate in a sliding mode, an executing sliding frame is installed on the lifting frame in a sliding mode, clamping mechanisms are arranged on the two sides of the executing sliding frame in an array mode and used for clamping garbage compression blocks, and a separating mechanism is further arranged on the executing sliding frame. According to the garbage compression block dispersing device, garbage compression blocks can be dispersed when being put into an incinerator, and slag can be conveniently removed.

Description

Technical Field

[0001] The present invention relates to the technical field of waste incineration, and in particular to a waste incineration system and method for efficiently reducing nitrogen oxide emissions. Background Art

[0002] The coordinated control technology of pollutant reconstruction during combustion in the furnace is a technology that effectively reduces pollutant generation and improves pollutant treatment efficiency in the furnace by optimizing the combustion process. The core of this technology is to reduce pollutant emissions by improving the coordinated control of combustion conditions and physical and chemical processes in the furnace, especially in industrial furnaces and waste incinerators. At present, garbage is generally recycled, that is, compressed into blocks, and is not dispersed when put into the incinerator, which will affect the subsequent drying, pyrolysis and incineration efficiency, and the existing incinerator is not convenient for the subsequent removal of slag. Based on this, the present invention proposes an incineration system that can disperse the compressed garbage blocks when they are put into the incinerator, and facilitate the removal of slag. Summary of the invention

[0003] In view of the above technical problems, the present invention can disperse the compressed garbage blocks when they are put into the incinerator, and facilitate the removal of slag.

[0004] The use scheme of the present invention is: a garbage incineration system with high efficiency in reducing nitrogen oxides, including an incinerator, an incineration base is arranged inside the incinerator, a flue gas channel is arranged on the incinerator, and a waste heat boiler is arranged on the top of the flue gas channel; a combustion control unit is arranged on the top of the incinerator for combustion control, and a temperature control unit is arranged on the side of the incinerator for temperature control; a primary air fan is arranged at one end of the incinerator, and a secondary air fan is arranged on the outside of the flue gas channel; a scraper is arranged inside one end of the incinerator, and a fixing mechanism is arranged at one end of the incinerator for fixing the scraper; stirring mechanisms are arranged on both sides of the incinerator, and the stirring mechanism includes An installation cylinder is arranged on the side of the incinerator, and a stirring shaft is slidably arranged inside the installation cylinder for stirring the garbage; an end plate is slidably matched on the incinerator, and an actuator is arranged on the end plate. The actuator includes a lifting frame slidably mounted on the end plate, and an execution slide is slidably mounted on the lifting frame. Clamping mechanisms are arranged in arrays on both sides of the execution slide for clamping the garbage compression blocks. A separation mechanism is also arranged on the execution slide. The separation mechanism includes a separation slide seat slidably mounted on the execution slide, and a separation shaft is rotatably arranged on the separation slide. The clamping mechanism fixes the garbage compression blocks, and the garbage compression blocks are dispersed through the separation mechanism.

[0005] Furthermore, a fixing part 1 is provided on one side of the scraper, and a fixing part 2 is provided on the other side of the scraper. A fixing hole is provided on the fixing part 2, and the fixing mechanism cooperates with the fixing hole to fix the scraper; the actuator clamps and fixes the fixing part 1 to drive the scraper to move.

[0006] Furthermore, the fixing mechanism includes a control electric cylinder arranged on the end face of the incinerator, a push wheel is arranged on the telescopic rod of the control electric cylinder, a fixed shaft is also slidably installed on the end face of the incinerator, a pushing part is arranged at one end of the fixed shaft, the pushing part is pushed by the push wheel, a spring is connected between the fixed shaft and the incinerator; the fixed shaft cooperates with the second fixing hole on the fixing part to fix the scraper.

[0007] Furthermore, the actuator includes a second motor and a second screw rod arranged on the end plate, the second motor is used to drive the second screw rod, the second screw rod and the lifting frame form a spiral pair, and a folding baffle is connected between the lifting frame and the end plate; a position motor is arranged on the lifting frame, and a position gear is arranged on the output shaft of the position motor, and the position gear is used to drive the actuator slide.

[0008] Furthermore, the incinerator is provided with a motor 1, a screw rod 1, and a guide rod 1. The motor 1 is used to drive the screw rod 1. A matching slide is movably provided on the screw rod 1 and the guide rod 1. One end of the matching slide is connected to the end plate, and the matching slide and the screw rod 1 form a spiral pair.

[0009] Furthermore, the execution slide is provided with a rack, which meshes with the position gear; the execution slide is L-shaped, and a clamping cylinder is provided on the vertical end of the execution slide, and an electromagnetic clamping plate is provided on the clamping cylinder, the clamping cylinder cooperates with the fixing part, and the electromagnetic clamping plate clamps and fixes the fixing part; the clamping mechanism includes a clamping electric cylinder provided on the execution slide, and a clamping plate is provided on the telescopic rod of the clamping electric cylinder; Furthermore, the separation mechanism includes a motor four, a screw rod four, and a guide rod four arranged on the execution slide; the motor four is used to drive the screw rod four, the separation slide is movably arranged on the screw rod four and the guide rod four, and the separation slide and the screw rod four form a spiral pair; a separation motor is arranged on the separation slide, and a belt structure is arranged on the output shaft of the separation motor for driving the separation shaft.

[0010] Furthermore, the stirring mechanism includes a stirring motor arranged on a mounting cylinder, a belt structure is arranged on an output shaft of the stirring motor, a turntable is rotatably mounted on the mounting cylinder, and the turntable is driven by the belt structure on the output shaft of the stirring motor; a connecting frame is slidably mounted on the turntable, and one end of the connecting frame is connected to the stirring shaft.

[0011] Furthermore, the stirring mechanism also includes a screw rod three, a motor three and a guide rod three arranged on the outside of the incinerator, and the motor three is used to drive the screw rod three; a push plate is movably arranged on the screw rod three and the guide rod three, and a connecting part is arranged on the push plate, and the connecting part is rotatably connected to one end of the connecting frame.

[0012] A method for efficiently reducing nitrogen oxide emissions by incineration of waste comprises the following steps: S10: The compressed garbage blocks are transferred to the interior of the incinerator through the actuator, and the compressed garbage blocks are dispersed through the clamping mechanism and the separation mechanism; S20: Drying and pyrolyzing the garbage by heating to generate semi-coke with low or no water content and reducing volatiles, including water vapor, tar, pyrolysis gas, etc.; S30: After primary air is introduced, the flue gas generated by the combustion of garbage semi-coke and primary air is mixed with the pyrolysis volatiles, the NO contained in the flue gas x The reducing components such as tar, H2, CO in the volatile matter are reduced to N2, thereby reducing the initial NO in the combustion process. x Production volume; S40: secondary air is introduced, and the unburned volatile matter contacts with the secondary air for complete combustion; S50: The flue gas passes through the waste heat boiler to utilize the heat of the flue gas; the exhausted flue gas passes through the semi-dry reaction tower for deammoniation treatment, then passes through the bag filter for dust removal, and finally is discharged through the chimney.

[0013] Compared with the prior art, the present invention has the following advantages: (1) the execution slide is slid, that is, the separation shaft passes through each compression block, and the separation motor controls the separation shaft to rotate, so that the compression blocks can be separated. The clamping plate is controlled by the clamping electric cylinder to repeatedly hit the compression blocks, so that the compression blocks can be loosened, thereby achieving the purpose of dispersing the garbage compression blocks, which is beneficial to the subsequent drying and pyrolysis; (2) during the drying and pyrolysis and subsequent combustion, the motor three can work, the screw three can rotate, so that the push plate can move, and then the connecting frame and the stirring shaft can be driven to move to the inside of the incinerator, and the stirring motor can work. The turntable is rotated, that is, the stirring shaft is driven to rotate to stir the garbage, which can improve the drying and pyrolysis efficiency and the combustion efficiency; (3) When treating the slag inside the incinerator, the execution slide can be controlled to move to the inside of the incinerator, the clamping tube and the fixing part are fixed together, and the fixing mechanism releases the fixation of the scraper, that is, the electric cylinder controls the push wheel to move, the push wheel pushes the push part, and then the fixed shaft moves, and the fixed shaft is disengaged from the fixing hole on the fixing part; the execution slide drives the scraper to move, and the scraper scrapes the slag on the incineration base, that is, pushes it from the inside of the incinerator to the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention.

[0016] Figure 3 It is a schematic diagram of the end of the overall structure of the present invention.

[0017] Figure 4 It is a schematic diagram of the scraper installation structure of the present invention.

[0018] Figure 5 It is a schematic diagram of the installation structure of the fixing mechanism of the present invention.

[0019] Figure 6 It is a schematic diagram of the end plate structure of the present invention.

[0020] Figure 7 It is a schematic diagram of the structure of the stirring mechanism of the present invention.

[0021] Figure 8 This is a schematic diagram of the stirring shaft installation structure of the present invention.

[0022] Fig. 9 This is a schematic diagram of the slide installation structure of the present invention.

[0023] Fig.10 This is a schematic diagram of the installation structure of the lifting frame of the present invention.

[0024] Fig.11 It is a schematic diagram of the installation structure of the clamping mechanism of the present invention.

[0025] Fig.12 It is a schematic diagram of the separation mechanism structure of the present invention.

[0026] Fig.13 This is a schematic diagram of the end structure of the slide frame according to the present invention.

[0027] Figure numerals: 1-incinerator; 101-incineration base; 2-waste heat boiler; 3-smoke channel; 4-temperature control unit; 5-combustion control unit; 6-primary air fan; 7-secondary air fan; 9-motor 1; 10-scraper; 11-fixing part 1; 12-fixing part 2; 13-control electric cylinder; 14-push wheel; 15-fixed shaft; 16-pushing part; 17-spring; 18-screw rod 1; 19-guide rod 1; 20-matching slide plate; 21-end plate; 22-motor 2; 23-screw rod 2; 24-stirring Motor; 25-installing cylinder; 26-screw rod three; 27-motor three; 28-guide rod three; 29-push plate; 30-connecting part; 31-turntable; 32-connecting frame; 33-stirring shaft; 34-executing slide; 35-rack; 36-folding baffle; 37-lifting frame; 38-position motor; 39-position gear; 40-clamping electric cylinder; 41-clamping plate; 42-motor four; 43-screw rod four; 44-guide rod four; 45-separation slide; 46-separation motor; 47-separation shaft; 48-clamping cylinder. DETAILED DESCRIPTION

[0028] Example: Figures 1 to 13As shown, a garbage incineration system for reducing nitrogen oxides emission efficiently comprises an incinerator 1, an incineration base 101 is arranged inside the incinerator 1, a flue gas channel 3 is arranged on the incinerator 1, and a waste heat boiler 2 is arranged on the top of the flue gas channel 3; a combustion control unit 5 is arranged on the top of the incinerator 1 for combustion control, and a temperature control unit 4 is arranged on the side of the incinerator 1 for temperature control; a primary air fan 6 is arranged at one end of the incinerator 1, and a secondary air fan 7 is arranged on the outside of the flue gas channel 3; a scraper 10 is arranged inside one end of the incinerator 1, and a fixing mechanism is arranged at one end of the incinerator 1 for fixing the scraper 10; stirring mechanisms are arranged on both sides of the incinerator 1, and the stirring mechanism includes a fan arranged on the incinerator 1 A mounting cylinder 25 is provided on the side, and a stirring shaft 33 is slidably arranged inside the mounting cylinder 25 for stirring the garbage; an end plate 21 is slidably fitted on the incinerator 1, and an actuator is arranged on the end plate 21, and the actuator includes a lifting frame 37 slidably mounted on the end plate 21, and an actuator slide 34 is slidably mounted on the lifting frame 37, and clamping mechanisms are arranged in arrays on both sides of the actuator slide 34 for clamping the garbage compression block, and a separation mechanism is also arranged on the execution slide 34, and the separation mechanism includes a separation slide 45 slidably mounted on the execution slide 34, and a separation shaft 47 is rotatably arranged on the separation slide 45, and the clamping mechanism fixes the garbage compression block, and the garbage compression block is dispersed and processed through the separation mechanism.

[0029] A fixing part 11 is provided on one side of the scraper 10, and a fixing part 2 12 is provided on the other side of the scraper 10. A fixing hole is provided on the fixing part 2 12, and a fixing mechanism cooperates with the fixing hole to fix the scraper 10; the actuator clamps and fixes the fixing part 11 to drive the scraper 10 to move; the fixing mechanism includes a control electric cylinder 13 arranged on the end surface of the incinerator 1, and a push wheel 14 is provided on the telescopic rod of the control electric cylinder 13. A fixed shaft 15 is also slidably installed on the end surface of the incinerator 1, and a pushing part 16 is provided at one end of the fixed shaft 15. The pushing part 16 is pushed by the push wheel 14, and a spring 17 is connected between the fixed shaft 15 and the incinerator 1; the fixed shaft 15 cooperates with the fixing hole on the fixing part 2 12 to fix the scraper 10.

[0030] The actuator includes a motor 22 and a screw rod 23 arranged on the end plate 21. The motor 22 is used to drive the screw rod 23. The screw rod 23 and the lifting frame 37 form a spiral pair. A folding baffle 36 is connected between the lifting frame 37 and the end plate 21. A position motor 38 is arranged on the lifting frame 37. A position gear 39 is arranged on the output shaft of the position motor 38. The position gear 39 is used to drive the execution slide 34. The actuator also includes a motor 9, a screw rod 18, and a guide rod 19 arranged on the incinerator 1. The motor 9 is used to drive the screw rod 18. When the screw rod 18 and the guide rod 19 move upward, the motor 9 moves upward. The actuator is provided with a matching slide 20, one end of which is connected to the end plate 21, and the matching slide 20 and the lead screw 18 form a spiral pair; a rack 35 is provided on the actuator slide 34, and the rack 35 is meshed with the position gear 39; the actuator slide 34 is L-shaped, and a clamping cylinder 48 is provided on the vertical end of the actuator slide 34, and an electromagnetic clamping plate is provided on the clamping cylinder 48, and the clamping cylinder 48 cooperates with the fixed part 11, and the electromagnetic clamping plate clamps and fixes the fixed part 11; the clamping mechanism includes a clamping electric cylinder 40 provided on the actuator slide 34, and a clamping plate 41 is provided on the telescopic rod of the clamping electric cylinder 40; The separation mechanism includes a motor 42, a screw rod 43, and a guide rod 44 arranged on the execution slide 34; the motor 42 is used to drive the screw rod 43, and the separation slide 45 is movably arranged on the screw rod 43 and the guide rod 44, and the separation slide 45 and the screw rod 43 form a spiral pair; a separation motor 46 is arranged on the separation slide 45, and a belt structure is arranged on the output shaft of the separation motor 46 for driving the separation shaft 47; the stirring mechanism includes a stirring motor 24 arranged on the mounting cylinder 25, and a belt structure is arranged on the output shaft of the stirring motor 24 A turntable 31 is rotatably mounted on the mounting cylinder 25, and the turntable 31 is driven by a belt structure on the output shaft of the stirring motor 24; a connecting frame 32 is slidably mounted on the turntable 31, and one end of the connecting frame 32 is connected to the stirring shaft 33; the stirring mechanism also includes a screw rod 3 26, a motor 3 27 and a guide rod 3 28 arranged on the outside of the incinerator 1, and the motor 3 27 is used to drive the screw rod 3 26; a push plate 29 is movably arranged on the screw rod 3 26 and the guide rod 3 28, and a connecting part 30 is arranged on the push plate 29, and the connecting part 30 is rotatably connected to one end of the connecting frame 32.

[0031] A method for efficiently reducing nitrogen oxide emissions by incineration of waste comprises the following steps: S10: transferring the compressed garbage blocks to the interior of the incinerator 1 through the actuator, and dispersing the compressed garbage blocks through the clamping mechanism and the separation mechanism; S20: Drying and pyrolyzing the garbage by heating to generate semi-coke with low or no water content and reducing volatiles, including water vapor, tar, pyrolysis gas, etc.; S30: After primary air is introduced, the flue gas generated by the combustion of garbage semi-coke and primary air is mixed with the pyrolysis volatiles, the NO contained in the flue gasx The reducing components such as tar, H2, CO in the volatile matter are reduced to N2, thereby reducing the initial NO in the combustion process. x Production volume; S40: secondary air is introduced, and the unburned volatile matter contacts with the secondary air for complete combustion; S50: The flue gas passes through the waste heat boiler to utilize the heat of the flue gas; the exhausted flue gas passes through the semi-dry reaction tower for deammoniation treatment, then passes through the bag filter for dust removal, and finally is discharged through the chimney.

[0032] The principle of implementing the present invention is as follows: the garbage compression block or the uneven garbage group is clamped by the clamping mechanism, that is, the clamping electric cylinder 40 controls the clamping plate 41 to clamp the compression block, and then the motor 1 9 works to make the matching slide plate 20 and the end plate 21 move, and the end plate 21 cooperates with the open end of the incinerator 1. The compression block is inside the incinerator 1, and the motor 22 works and the screw rod 23 rotates to move the lifting frame 37, that is, adjust the height, and place the compression block on the incineration base 101. The motor 42 works and the screw rod 43 rotates to make the execution slide 34 slide, that is, the separation shaft 47 passes through each compression block, and the separation motor 46 controls the separation shaft 47 to rotate, so as to separate the compression block. Combined with the clamping electric cylinder 40, the clamping plate 41 is controlled to hit the compression block repeatedly, so as to loosen the compression block, thereby achieving the purpose of dispersing the garbage compression block, which is beneficial to the subsequent drying and pyrolysis.

[0033] The position motor 38 operates to move the execution slide 34, that is, the execution slide 34 exits the interior of the incinerator 1, and the vertical end of the execution slide 34 cooperates with the lifting frame 37 to achieve closure; then the temperature inside the incinerator 1 is adjusted by the temperature control unit 4 to dry and pyrolyze the garbage. After the drying and pyrolysis are completed, primary air is introduced through the primary air fan 6, and the combustion control is performed through the combustion control unit 5 to burn the garbage. After the flue gas generated by the combustion of the garbage semi-coke and the primary air is mixed with the pyrolysis volatiles, the NO contained in the flue gas is x The reducing components such as tar, H2, CO in the volatile matter are reduced to N2, thereby reducing the initial NO in the combustion process. x secondary air is introduced, and the unburned volatile matter is contacted with the secondary air for complete combustion; the flue gas passes through the waste heat boiler 2 to utilize its heat.

[0034] Specifically, when performing drying pyrolysis and subsequent combustion, the motor three 27 can be operated and the screw three 26 can be rotated to move the push plate 29, thereby driving the connecting frame 32 and the stirring shaft 33 to move to the inside of the incinerator 1. The stirring motor 24 can be operated to rotate the turntable 31, that is, drive the stirring shaft 33 to rotate, so as to stir the garbage, which can improve the drying pyrolysis efficiency and the combustion efficiency.

[0035] When the slag inside the incinerator 1 is processed, the execution slide 34 can be controlled to move to the inside of the incinerator 1, the clamping tube 48 is fixed with the fixing part 11, and the fixing mechanism releases the fixation of the scraper 10, that is, the electric cylinder 13 is controlled to control the push wheel 14 to move, the push wheel 14 pushes the pushing part 16, and then the fixed shaft 15 moves, and the fixed shaft 15 is disengaged from the fixing hole on the fixing part 2 12; the execution slide 34 drives the scraper 10 to move, and the scraper 10 scrapes the slag on the incineration base 101, that is, pushes it from the inside of the incinerator 1 to the outside.

Claims

1. A waste incineration system for efficiently reducing nitrogen oxide emissions, comprising an incinerator (1), wherein an incineration base (101) is arranged inside the incinerator (1), a flue gas passage (3) is arranged on the incinerator (1), and a waste heat boiler (2) is arranged on the top of the flue gas passage (3); a combustion control unit (5) is arranged on the top of the incinerator (1) for combustion control, and a temperature control unit (4) is arranged on the side of the incinerator (1) for temperature control; a primary air fan (6) is arranged at one end of the incinerator (1), and a secondary air fan (7) is arranged on the outside of the flue gas passage (3); the characteristics are: A scraper (10) is disposed inside one end of the incinerator (1), and a fixing mechanism is disposed at one end of the incinerator (1) for fixing the scraper (10); stirring mechanisms are disposed on both sides of the incinerator (1), the stirring mechanisms comprising a mounting cylinder (25) disposed on the side of the incinerator (1), a stirring shaft (33) being slidably disposed inside the mounting cylinder (25) for stirring garbage; an end plate (21) is slidably fitted on the incinerator (1), an actuator is disposed on the end plate (21), the actuator comprising a mounting cylinder (25) slidably mounted on the end plate (21), A lifting frame (37) is mounted on the plate (21), an execution slide (34) is slidably mounted on the lifting frame (37), a clamping mechanism is arranged in an array on both sides of the execution slide (34) for clamping the garbage compression block, a separation mechanism is also arranged on the execution slide (34), the separation mechanism comprises a separation slide (45) slidably mounted on the execution slide (34), a separation shaft (47) is rotatably arranged on the separation slide (45), the clamping mechanism fixes the garbage compression block, and the garbage compression block is dispersed and processed through the separation mechanism.

2. A waste incineration system for reducing nitrogen oxides with high efficiency according to claim 1, characterized in that: A fixing portion 1 (11) is provided on one side of the scraper (10), and a fixing portion 2 (12) is provided on the other side of the scraper (10); a fixing hole is provided on the fixing portion 2 (12); a fixing mechanism cooperates with the fixing hole to fix the scraper (10); and an actuator clamps and fixes the fixing portion 1 (11) to drive the scraper (10) to move.

3. A waste incineration system for reducing nitrogen oxides with high efficiency according to claim 2, characterized in that: The fixing mechanism comprises a control electric cylinder (13) arranged on the end surface of the incinerator (1); a push wheel (14) is arranged on the telescopic rod of the control electric cylinder (13); a fixed shaft (15) is also slidably mounted on the end surface of the incinerator (1); a pushing portion (16) is arranged at one end of the fixed shaft (15); the pushing portion (16) is pushed by the push wheel (14); a spring (17) is connected between the fixed shaft (15) and the incinerator (1); the fixed shaft (15) cooperates with a fixing hole on the second fixing portion (12) to fix the scraper (10).

4. A waste incineration system for reducing nitrogen oxides with high efficiency according to claim 1, characterized in that: The incinerator (1) is provided with a motor (9), a screw rod (18), and a guide rod (19). The motor (9) is used to drive the screw rod (18). A matching slide (20) is movably provided on the screw rod (18) and the guide rod (19). One end of the matching slide (20) is connected to the end plate (21). The matching slide (20) and the screw rod (18) form a spiral pair.

5. A waste incineration system for reducing nitrogen oxides with high efficiency according to claim 2, characterized in that: The actuator comprises a second motor (22) and a second screw rod (23) arranged on the end plate (21); the second motor (22) is used to drive the second screw rod (23); the second screw rod (23) and the lifting frame (37) form a spiral pair; a folding baffle (36) is connected between the lifting frame (37) and the end plate (21); a position motor (38) is arranged on the lifting frame (37); a position gear (39) is arranged on the output shaft of the position motor (38); the position gear (39) is used to drive the actuator slide (34).

6. A waste incineration system for reducing nitrogen oxides with high efficiency according to claim 5, characterized in that: The execution slide (34) is provided with a rack (35), and the rack (35) is meshed with a position gear (39); the execution slide (34) is L-shaped, and a clamping cylinder (48) is provided on the vertical end of the execution slide (34), and an electromagnetic clamping plate is provided on the clamping cylinder (48), the clamping cylinder (48) cooperates with the fixing part (11), and the electromagnetic clamping plate clamps and fixes the fixing part (11); the clamping mechanism comprises a clamping electric cylinder (40) provided on the execution slide (34), and a clamping plate (41) is provided on the telescopic rod of the clamping electric cylinder (40).

7. The waste incineration system for efficiently reducing nitrogen oxide emissions according to claim 1 is characterized by: The separation mechanism comprises a motor four (42), a screw rod four (43), and a guide rod four (44) arranged on the execution slide (34); the motor four (42) is used to drive the screw rod four (43); the separation slide (45) is movably arranged on the screw rod four (43) and the guide rod four (44), and the separation slide (45) and the screw rod four (43) form a spiral pair; a separation motor (46) is arranged on the separation slide (45), and a belt structure is arranged on the output shaft of the separation motor (46) for driving the separation shaft (47).

8. The waste incineration system for efficiently reducing nitrogen oxide emissions according to claim 1 is characterized by: The stirring mechanism comprises a stirring motor (24) arranged on a mounting cylinder (25); a belt structure is arranged on an output shaft of the stirring motor (24); a turntable (31) is rotatably mounted on the mounting cylinder (25); the turntable (31) is driven by the belt structure on the output shaft of the stirring motor (24); a connecting frame (32) is slidably mounted on the turntable (31); one end of the connecting frame (32) is connected to the stirring shaft (33).

9. A waste incineration system for reducing nitrogen oxides with high efficiency according to claim 8, characterized in that: The stirring mechanism further comprises a screw rod three (26), a motor three (27) and a guide rod three (28) arranged outside the incinerator (1), wherein the motor three (27) is used to drive the screw rod three (26); a push plate (29) is movably arranged on the screw rod three (26) and the guide rod three (28), and a connecting portion (30) is arranged on the push plate (29), and the connecting portion (30) is rotatably connected to one end of a connecting frame (32).

10. A method for efficiently reducing nitrogen oxide emissions by incineration of waste, characterized in that: The following steps are involved: S10: transferring the compressed garbage blocks to the interior of the incinerator (1) through the actuator, and dispersing the compressed garbage blocks through the clamping mechanism and the separation mechanism; S20: Drying and pyrolyzing the garbage by heating to generate semi-coke with low or no water content and reducing volatiles, including water vapor, tar, pyrolysis gas, etc.; S30: After primary air is introduced, the flue gas generated by the combustion of garbage semi-coke and primary air is mixed with the pyrolysis volatiles, the NO contained in the flue gas x The reducing components such as tar, H2, CO in the volatile matter are reduced to N2, thereby reducing the initial NO in the combustion process. x Production volume; S40: secondary air is introduced, and the unburned volatile matter contacts with the secondary air for complete combustion; S50: The flue gas passes through the waste heat boiler to utilize the heat of the flue gas; the exhausted flue gas passes through the semi-dry reaction tower for deammoniation treatment, then passes through the bag filter for dust removal, and finally is discharged through the chimney.

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