Efficient fluidized bed waste incinerator secondary air nozzle device

Abstract

This utility model discloses a high-efficiency fluidized bed waste incinerator secondary air nozzle device, including an incineration tower and a limiting frame. The limiting frame is installed on the side wall of the incineration tower, and a secondary air nozzle body is movably installed inside the limiting frame, extending into the interior of the incineration tower. An integrated plate is installed on the inner wall of the limiting frame. A feed pipe is installed on the side wall of the incineration tower on one side of the secondary air nozzle body, and the feed pipe is connected to the incineration tower. A cylinder is installed on the side wall of the incineration tower above the limiting frame. A push arm is installed at the output end of the cylinder, and a slip ring is movably installed at the end of the push arm away from the cylinder. This utility model not only realizes the reciprocating swing adjustment of the air delivery direction of the secondary air nozzle and the uniform spraying of ammonia water, facilitating more uniform contact between waste and external air and sufficient neutralization of nitrates in the exhaust gas by spraying ammonia water, but also improves the quality of waste incineration and the denitrification effect of the exhaust gas.

Description

Technical Field

[0001] This utility model relates to the field of waste incineration technology, specifically to a secondary air nozzle device for a high-efficiency fluidized bed waste incinerator. Background Technology

[0002] Incinerators are commonly used for the harmless treatment of medical and domestic waste, as well as animal waste. Their principle is to utilize the combustion of fuels such as coal, oil, or gas to burn and carbonize the waste at high temperatures, achieving sterilization. However, waste incineration easily generates secondary pollution; improper combustion control can produce harmful gases such as sulfur dioxide and nitrogen dioxide. To ensure more complete combustion of waste within the incinerator, secondary air nozzles are needed to supply air. The structure and arrangement of these secondary air nozzles are crucial to the airflow organization within the furnace, playing a vital role in ensuring stable combustion, complete waste combustion, and pollutant control. Traditional secondary air nozzle structures often have a fixed air inlet direction, which cannot guarantee sufficient contact between the airflow and the waste. To improve this situation, a high-efficiency fluidized bed waste incinerator secondary air nozzle device is proposed.

[0003] For example, the secondary air nozzle structure for a waste incinerator disclosed in the authorization announcement number CN222417477U includes a nozzle body. The upper and lower sides of one end of the nozzle body are provided with concave surfaces, and the left and right sides of one end of the nozzle body are provided with convex surfaces. The two concave surfaces are respectively connected to the two convex surfaces to form a bowtie-shaped nozzle.

[0004] While this design increases the axial penetration and lateral diffusion angle of the secondary air, allowing for better mixing with the flue gas in the channel, thus contributing to better combustion of combustible pollutants and more uniform temperature distribution within the furnace, the bowtie-shaped nozzle structure also ensures a wide lateral diffusion range and compresses and accelerates the secondary air through a concave tapering structure. This guarantees sufficient outlet velocity, giving the secondary air high momentum to effectively agitate the combustion chamber and reduce CO emissions.

[0005] However, the existing incineration nozzle device does not solve the problem that it is not conducive to the reciprocating swing adjustment of the secondary air nozzle and the uniform spraying of ammonia water during use, which is not conducive to more uniform contact between the waste and the outside air and the full neutralization treatment of the nitrate in the exhaust gas by spraying ammonia water, thus affecting the quality of waste incineration and the effect of exhaust gas denitrification. Utility Model Content

[0006] The purpose of this utility model is to provide a high-efficiency fluidized bed waste incinerator secondary air nozzle device to solve the problems mentioned in the background art, such as the inconvenience of the incineration nozzle device in adjusting the air delivery direction of the secondary air nozzle and uniformly spraying ammonia water, which is not conducive to making the waste contact with the outside air more uniform and to fully neutralizing the nitrate in the exhaust gas with ammonia water, thus affecting the quality of waste incineration and the effect of exhaust gas denitrification.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency fluidized bed waste incinerator secondary air nozzle device, comprising an incineration tower and a limiting frame. The limiting frame is provided on the side wall of the incineration tower, and a secondary air nozzle body is movably disposed inside the limiting frame, extending into the interior of the incineration tower. An integrated plate is provided on the inner wall of the limiting frame. A feed pipe is provided on the side wall of the incineration tower on one side of the secondary air nozzle body, and the feed pipe is connected to the incineration tower. A cylinder is provided on the side wall of the incineration tower above the limiting frame. A push arm is provided at the output end of the cylinder. A slip ring is movably installed at the end of the push arm away from the cylinder, and the slip ring is slidably connected to the incineration tower. A first movable sleeve is provided on the surface of the secondary air nozzle body, and the secondary air nozzle body is movably connected to the incineration tower through the first movable sleeve. A gear is fitted on the surface of the secondary air nozzle body on one side of the first movable sleeve. Multiple sets of primary air nozzle bodies are provided at the bottom of the incineration tower.

[0008] Preferably, a stepper motor is provided on one side of the integrated board, and a drive shaft is installed at the output end of the stepper motor.

[0009] Preferably, a short connecting arm is fitted onto the surface of the drive shaft, and a long connecting arm is movably mounted on the end of the short connecting arm away from the drive shaft.

[0010] Preferably, a movable rod is movably mounted on the end of the long connecting arm away from the short connecting arm, and a limit block is provided on the other side of the integrated plate, with the movable rod and the limit block being slidably connected.

[0011] Preferably, a rack is provided at the end of the moving rod away from the long connecting arm, and the rack meshes with a gear.

[0012] Preferably, the slip ring has multiple sets of linkage arms at equal intervals on its side wall, and each linkage arm has a connecting shaft at the end near the slip ring, and the linkage arm is movably connected to the slip ring through the connecting shaft.

[0013] Preferably, the end of the linkage arm away from the slip ring is provided with a swing arm, and the end of the swing arm near the linkage arm is provided with a hinge shaft, and the swing arm is movably connected to the linkage arm through the hinge shaft.

[0014] Preferably, an ammonia nozzle is fixedly installed at the end of the swing arm away from the linkage arm, and the ammonia nozzle extends into the interior of the incineration tower. A second movable sleeve is provided on the surface of the ammonia nozzle, and the ammonia nozzle is movably connected to the incineration tower through the second movable sleeve.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the incineration nozzle device not only realizes the reciprocating swing adjustment of the air supply direction of the secondary air nozzle and the uniform spraying of ammonia water, which facilitates more uniform contact between the waste and the outside air and the full neutralization treatment of nitrates in the exhaust gas by spraying ammonia water, but also improves the quality of waste incineration and the effect of exhaust gas denitrification.

[0016] (1) When waste incineration is required, in order to improve the uniformity of contact between waste and air, after the waste is put into the incineration tower, primary air is supplied to the interior of the incineration tower through the primary air nozzle body, and secondary air is supplied to the interior of the incineration tower through the secondary air nozzle body. At the same time as the secondary air nozzle body supplies air, the stepper motor drives the drive shaft to rotate, the drive shaft drives the short connecting arm to rotate, the short connecting arm drives the long connecting arm to swing back and forth, the long connecting arm drives the moving rod to move back and forth inside the limit block, the limit block drives the rack to move back and forth, and the rack drives the secondary air nozzle body to rotate back and forth inside the first movable sleeve through the gear. The nozzle body features a curved outlet design, allowing adjustment of the secondary air nozzle's outlet direction. During the reciprocating oscillation of the secondary air nozzle, air is supplied to different locations within the incineration tower, ensuring that waste at different locations comes into contact with air for more complete combustion. Simultaneously, coal and limestone are fed into the incineration tower through the feed pipe. The combustion-aiding effect of the coal and limestone further enhances the combustion of the waste, thereby improving the quality of waste incineration. This reciprocating oscillation adjustment of the secondary air nozzle's air supply direction facilitates multi-stage air supply to the waste, ensuring complete combustion and improving the quality of waste incineration.

[0017] (2) Open the cylinder, and the cylinder drives the push arm to move. The push arm drives the slip ring to slide on the surface of the incineration tower. The slip ring drives the linkage arm to rotate through the connecting shaft. The linkage arm drives the swing arm to rotate through the hinge shaft. Under the active support of the second movable sleeve, the swing arm drives the ammonia nozzle to rotate. Because the outlet end of the ammonia nozzle is designed to be curved, the outlet direction of the ammonia nozzle can be adjusted. At the same time, under the repeated action of the cylinder, the ammonia nozzle is made to swing back and forth, so as to uniformly swing and spray ammonia into the interior of the incineration tower to better neutralize the nitrate in the waste gas, improve the denitrification effect, realize the uniform spraying of ammonia by reciprocating swing, facilitate the full neutralization of nitrate in the waste gas, and improve the denitrification effect of the waste gas. Attached Figure Description

[0018] Figure 1This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a frontal cross-sectional view of the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the integrated board of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the slip ring of this utility model;

[0022] Figure 5 This is a three-dimensional, partially enlarged structural diagram of the slip ring and ammonia nozzle of this utility model;

[0023] Figure 6 This is a three-dimensional structural diagram of the cylinder of this utility model;

[0024] Figure 7 This is a three-dimensional structural diagram of the integrated board of this utility model.

[0025] In the diagram: 1. Incineration tower; 2. Integrated plate; 3. Limiting frame; 4. Secondary air nozzle body; 5. Feed pipe; 6. First movable sleeve; 7. Cylinder; 8. Primary air nozzle body; 9. Stepper motor; 10. Long connecting arm; 11. Short connecting arm; 12. Drive shaft; 13. Gear; 14. Moving rod; 15. Limiting block; 16. Rack; 17. Hinge shaft; 18. Push arm; 19. Ammonia nozzle; 20. Slip ring; 21. Linkage arm; 22. Connecting shaft; 23. Swing arm; 24. Second movable sleeve. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] Example 1

[0030] Please see Figure 1-7 This utility model provides an embodiment of a high-efficiency fluidized bed waste incinerator secondary air nozzle device, including an incineration tower 1 and a limiting frame 3. The limiting frame 3 is provided on the side wall of the incineration tower 1, and a secondary air nozzle body 4 is movably disposed inside the limiting frame 3, extending into the interior of the incineration tower 1. An integrated plate 2 is provided on the inner wall of the limiting frame 3. A feed pipe 5 is provided on the side wall of the incineration tower 1 on one side of the secondary air nozzle body 4, and the feed pipe 5 is connected to the incineration tower 1. The incineration tower 1 above the limiting frame 3... A cylinder 7 is provided on the side wall, which serves as a power drive. A push arm 18 is provided at the output end of the cylinder 7. A slip ring 20 is movably installed at the end of the push arm 18 away from the cylinder 7, and the slip ring 20 is slidably connected to the incineration tower 1. A first movable sleeve 6 is provided on the surface of the secondary air nozzle body 4, and the secondary air nozzle body 4 is movably connected to the incineration tower 1 through the first movable sleeve 6. A gear 13 is fitted on the surface of the secondary air nozzle body 4 on one side of the first movable sleeve 6. Multiple sets of primary air nozzle bodies 8 are provided at the bottom of the incineration tower 1.

[0031] A stepper motor 9 is provided on one side of the integrated board 2. The stepper motor 9 plays the role of power drive, and a drive shaft 12 is installed at the output end of the stepper motor 9.

[0032] A short connecting arm 11 is fitted onto the surface of the drive shaft 12, and a long connecting arm 10 is movably mounted on the end of the short connecting arm 11 away from the drive shaft 12.

[0033] A movable rod 14 is movably installed at the end of the long connecting arm 10 away from the short connecting arm 11, and a limit block 15 is provided on the other side of the integrated plate 2, and the movable rod 14 is slidably connected to the limit block 15.

[0034] A rack 16 is provided at the end of the moving rod 14 away from the long connecting arm 10, and the rack 16 meshes with the gear 13.

[0035] When waste incineration is required, to improve the uniformity of contact between waste and air, after the waste is put into the incineration tower 1, primary air is supplied into the incineration tower 1 through the primary air nozzle body 8, and secondary air is supplied into the incineration tower 1 through the secondary air nozzle body 4. Simultaneously with the secondary air nozzle body 4 supplying air, the stepper motor 9 is activated, driving the drive shaft 12 to rotate. The drive shaft 12 drives the short connecting arm 11 to rotate, and the short connecting arm 11 drives the long connecting arm 10 to reciprocate. Under the sliding engagement of the limiting block 15 and the moving rod 14, the long connecting arm 10 drives the moving rod 14 to reciprocate within the limiting block 15. The limiting block 15 drives the rack 16 to reciprocate. Under the mutual meshing of the rack 16 and the gear 13, and supported by the movable support of the first movable sleeve 6, the rack 16 reciprocates. The rack 16 drives the secondary air nozzle body 4 to reciprocate inside the first movable sleeve 6 via the gear 13. Because the air outlet of the secondary air nozzle body 4 is a bent pipe design, the air outlet direction of the secondary air nozzle body 4 can be adjusted. During the reciprocating swing of the secondary air nozzle body 4, air can be supplied to different positions inside the incineration tower 1 so that the garbage at different positions can come into contact with air, so that the garbage can be burned more completely. At the same time, coal and limestone are fed into the incineration tower 1 through the feed pipe 5. Under the combustion-supporting effect of coal and limestone, the garbage can be burned better, thereby improving the quality of garbage incineration. The reciprocating swing adjusts the air supply direction of the secondary air nozzle, which facilitates multi-stage air supply to the garbage, facilitates complete garbage incineration, and improves the quality of garbage incineration.

[0036] Multiple sets of linkage arms 21 with equal spacing are provided on the side wall of the slip ring 20. Each linkage arm 21 is provided with a connecting shaft 22 at the end near the slip ring 20, and the linkage arm 21 is movably connected to the slip ring 20 through the connecting shaft 22. Each linkage arm 21 is provided with a swing arm 23 at the end away from the slip ring 20. Each swing arm 23 is provided with a hinge shaft 17 at the end near the linkage arm 21, and the swing arm 23 is movably connected to the linkage arm 21 through the hinge shaft 17.

[0037] Ammonia nozzles 19 are fixedly installed at the end of the swing arm 23 away from the linkage arm 21, and the ammonia nozzles 19 extend into the interior of the incineration tower 1. A second movable sleeve 24 is provided on the surface of the ammonia nozzles 19, and the ammonia nozzles 19 are movably connected to the incineration tower 1 through the second movable sleeve 24.

[0038] During the incineration process, to neutralize the nitrates in the waste gas, ammonia water is connected to an ammonia water nozzle 19 via a flexible hose and sprayed into the interior of the incineration tower 1. The ammonia water neutralizes the nitrate impurities in the waste gas. To further enhance the nitrate neutralization, cylinder 7 is opened, causing the push arm 18 to move. The push arm 18 then causes the slip ring 20 to slide on the surface of the incineration tower 1. The slip ring 20, via the connecting shaft 22, drives the linkage arm 21 to rotate. The linkage arm 21, via the hinge shaft 17, drives the swing arm 23 to rotate. Under the support of the second movable sleeve 24, the ammonia nozzle 19 is rotated by the swing arm 23. Because the outlet end of the ammonia nozzle 19 is curved, the outlet direction of the ammonia nozzle 19 can be adjusted. At the same time, under the repeated action of the cylinder 7, the ammonia nozzle 19 is made to swing back and forth, thereby uniformly spraying ammonia into the combustion tower 1 to better neutralize the nitrate in the waste gas, improve the denitrification effect, and realize the uniform spraying of ammonia by reciprocating swing, which facilitates the full neutralization of nitrate in the waste gas and improves the denitrification effect of the waste gas.

[0039] Work steps

[0040] When waste incineration is required, to improve the uniformity of contact between waste and air, after the waste is put into the incineration tower 1, primary air is supplied into the incineration tower 1 through the primary air nozzle body 8, and secondary air is supplied into the incineration tower 1 through the secondary air nozzle body 4. Simultaneously, the stepper motor 9 drives the drive shaft 12 to rotate, which in turn drives the short connecting arm 11 to rotate. The short connecting arm 11 then drives the long connecting arm 10 to swing back and forth. Under the sliding engagement of the limiting block 15 and the moving rod 14, the limiting block 15 drives the long connecting arm 10 to swing back and forth. The rack 16 reciprocates, driving the secondary air nozzle body 4 to rotate reciprocally inside the first movable sleeve 6 via the gear 13. Because the outlet of the secondary air nozzle body 4 is a curved design, the air outlet direction can be adjusted. During the reciprocating motion of the secondary air nozzle body 4, air can be supplied to different locations inside the incineration tower 1, ensuring that waste at different locations comes into contact with air for more complete combustion. Simultaneously, coal and limestone are fed into the incineration tower 1 through the feed pipe 5. With the aid of combustion from the coal and limestone... To improve the quality of waste incineration and achieve better incineration, ammonia water is connected to an ammonia water nozzle 19 via a flexible hose and sprayed into the interior of the incineration tower 1 to neutralize the nitrate impurities in the waste gas during the incineration process. To further neutralize the nitrate in the waste gas, a cylinder 7 drives a push arm 18 to move, which in turn drives a slip ring 20 to slide on the surface of the incineration tower 1. The slip ring 20, through a connecting shaft 22, drives a linkage arm 21 to rotate. Arm 21 drives swing arm 23 to rotate via hinge shaft 17. Under the active support of second movable sleeve 24, swing arm 23 drives ammonia nozzle 19 to rotate. Because the outlet end of ammonia nozzle 19 is curved, the outlet direction of ammonia nozzle 19 can be adjusted. At the same time, under the repeated action of cylinder 7, ammonia nozzle 19 is made to swing back and forth, thereby uniformly swinging and spraying ammonia into the incineration tower 1 to better neutralize the nitrate in the waste gas. The above is the complete usage of the secondary air nozzle device for high-efficiency fluidized bed waste incinerator.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency fluidized bed waste incinerator secondary air nozzle device, comprising an incineration tower and a limiting frame, characterized in that: A limiting frame is provided on the side wall of the incineration tower. A secondary air nozzle body is movably installed inside the limiting frame and extends into the incineration tower. An integrated plate is provided on the inner wall of the limiting frame. A feed pipe is provided on the side wall of the incineration tower on one side of the secondary air nozzle body and is connected to the incineration tower. A cylinder is provided on the side wall of the incineration tower above the limiting frame. A push arm is provided at the output end of the cylinder. A slip ring is movably installed at the end of the push arm away from the cylinder and is slidably connected to the incineration tower. A first movable sleeve is provided on the surface of the secondary air nozzle body and is movably connected to the incineration tower through the first movable sleeve. A gear is fitted on the surface of the secondary air nozzle body on one side of the first movable sleeve. Multiple sets of primary air nozzle bodies are provided at the bottom of the incineration tower.

2. The high-efficiency fluidized bed waste incinerator secondary air nozzle device according to claim 1, characterized in that: A stepper motor is provided on one side of the integrated board, and a drive shaft is installed at the output end of the stepper motor.

3. The high-efficiency fluidized bed waste incinerator secondary air nozzle device according to claim 2, characterized in that: A short connecting arm is fitted onto the surface of the drive shaft, and a long connecting arm is movably mounted on the end of the short connecting arm away from the drive shaft.

4. The high-efficiency fluidized bed waste incinerator secondary air nozzle device according to claim 3, characterized in that: A movable rod is movably mounted on the end of the long connecting arm away from the short connecting arm, and a limit block is provided on the other side of the integrated plate, with the movable rod and the limit block being slidably connected.

5. The high-efficiency fluidized bed waste incinerator secondary air nozzle device according to claim 4, characterized in that: The end of the moving rod away from the long connecting arm is provided with a rack, and the rack meshes with a gear.

6. The high-efficiency fluidized bed waste incinerator secondary air nozzle device according to claim 1, characterized in that: The slip ring has multiple sets of linkage arms at equal intervals on its side wall. Each linkage arm has a connecting shaft at the end closest to the slip ring, and the linkage arm is movably connected to the slip ring through the connecting shaft.

7. The high-efficiency fluidized bed waste incinerator secondary air nozzle device according to claim 6, characterized in that: Each of the linked arms is provided with a swing arm at the end away from the slip ring, and each of the swing arms is provided with a hinge shaft at the end near the linked arm, and the swing arm is movably connected to the linked arm through the hinge shaft.

8. The high-efficiency fluidized bed waste incinerator secondary air nozzle device according to claim 7, characterized in that: Ammonia nozzles are fixedly installed at the end of the swing arm away from the linkage arm, and the ammonia nozzles extend into the interior of the incineration tower. A second movable sleeve is provided on the surface of the ammonia nozzle, and the ammonia nozzle is movably connected to the incineration tower through the second movable sleeve.

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