Dust removal device for thermal power boiler
By designing a dust removal device for thermal power boiler with brush sweeping and atomization and dust reduction functions, the existing devices cannot effectively remove stubborn dust on the surface of the bag and cannot atomize and dust reduction when unloading ash, achieving more efficient dust cleaning and dust reduction effects.
Patent Information
- Application Number
- CN202421962865.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-14
AI Technical Summary
The existing dust removal device for thermal power boilers cannot effectively remove stubborn dust from the surface of the bag, and cannot perform atomization and dust reduction treatment when unloading ash, which affects the filtration efficiency and dust-blooding phenomenon.
A dust removal device for thermal electric boiler is designed, including a brush sweeping mechanism and atomization dust reduction mechanism. The brush and sweeping mechanism uses the cooperation of the servo motor, screw, movable plate, cleaning board and cleaning brush to clean the dust on the surface of the bag. The atomization and dust reduction mechanism uses the spray head to atomize and spray dust to reduce dust by spraying the dust.
It effectively improves the dust cleaning effect on the surface of the bag, improves the filtration efficiency, and uses atomization and dust reduction function to prevent dust from being discharged, improving the dust treatment process.
Smart Images
Figure CN222983954U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of thermal power generation, in particular to a dust removal device for a thermal power boiler. Background Technique
[0002] The thermal power generation boiler is the core component of a thermal power plant. Its main function is to burn fuel to generate heat energy, and then heat water into steam. During the use of the thermal power generation boiler, a dust removal device needs to be installed at its exhaust end to remove the dust contained in the flue gas.
[0003] After retrieval, the publication number is CN214764047U, and the name is a bag dust collector for a boiler, including a recovery box. Through research and analysis, it is found that although it has the advantages of being able to clean and recycle the dust of the boiler during use, to a certain extent, it still has the following disadvantages.
[0004] For example, it does not have a brushing function. During the use of the above device, it usually only relies on the pulse dust removal method to clean the surface of the bag. However, this method cannot effectively remove the stubborn dust on the surface of the bag, thereby affecting the filtration efficiency of the bag. And it does not have an atomizing dust reduction function and cannot perform atomizing dust reduction treatment on the dust during ash discharge. To solve the above technical problems, we have designed a dust removal device for a thermal power boiler. Content of the Utility Model
[0005] The purpose of the utility model is to provide a dust removal device for a thermal power boiler, which has the advantages of a brushing function and an atomizing dust reduction function, and solves the problems that the existing dust removal device for a thermal power boiler cannot effectively remove the stubborn dust adhered to the surface of the bag during use, and cannot perform atomizing dust reduction on the dust during ash discharge.
[0006] To achieve the above purpose, the utility model provides the following technical solution: A dust removal device for a thermal power boiler, including a box body, a funnel and a dust discharge valve. A partition is fixedly connected to the inner cavity of the box body. The rear side of the top of the partition is bolted with a brushing mechanism. The brushing mechanism includes a servo motor. The output end of the servo motor penetrates through the partition and is fixedly connected with a lead screw. The bottom of the lead screw surface is thread sleeved with a movable plate. The front side of the movable plate is riveted with a cleaning plate. Cleaning holes are opened at the top of the cleaning plate. Cleaning brushes are arranged on the inner wall of the cleaning holes. Both sides of the top of the box body are communicated with a fan. A cylinder is fixedly connected through the top of the partition. A bag is fixedly sleeved at the bottom of the cylinder surface. A water tank is riveted to the left side of the bottom of the inner cavity of the box body. A dust reduction mechanism is bolted to the right side of the bottom of the inner cavity of the box body. A pulse tube is fixedly connected through the right side of the cylinder. A controller is bolted to the front side of the box body.
[0007] Preferably, the dust-removing mechanism includes a water pump. The bottom of the water pump is connected to the bottom of the inner cavity of the box body by bolts. The water inlet pipe of the water pump is communicated with a water suction pipe, and the left end of the water suction pipe is communicated with a water tank. The water outlet pipe of the water pump is communicated with a delivery pipe. The bottom end of the delivery pipe penetrates to the bottom of the box body and is communicated with a round pipe. A spray head is communicated inside the round pipe. The front side and the rear side of the top of the round pipe are both fixedly connected with support rods, and the top ends of the support rods are riveted to the box body. The output end of the controller is unidirectionally electrically connected to the water pump.
[0008] Preferably, guide rods are movably connected through both sides of the top of the movable plate, and the top ends of the guide rods are riveted to the partition plate.
[0009] Preferably, an exhaust pipe is communicated with the bottom of the pulse pipe. The exhaust pipe is located inside the cylinder body. The right end of the pulse pipe penetrates to the right side of the box body. A solenoid valve is fixedly installed on the right side of the surface of the pulse pipe. The output end of the controller is unidirectionally electrically connected to the solenoid valve.
[0010] Preferably, a water filling pipe is communicated with the top of the front side of the water tank, and the front end of the water filling pipe penetrates to the front side of the box body.
[0011] Preferably, the air inlet pipe of the fan penetrates to the inner cavity of the box body and is communicated with an air suction pipe, and the bottom end of the air suction pipe is communicated with the cylinder body.
[0012] Preferably, an air inlet pipe is communicated with the left side of the box body. Support legs are riveted to the four corners of the bottom of the box body. The output end of the controller is unidirectionally electrically connected to the servo motor, the ash discharge valve and the fan respectively.
[0013] Preferably, both sides, the front side and the rear side of the funnel are fixedly connected to the inner wall of the box body. The bottom end of the funnel penetrates to the bottom of the box body and is connected to the ash discharge valve by bolts.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0015] 1. Through the cooperation of the servo motor, the lead screw, the movable plate, the cleaning plate, the cleaning holes and the cleaning brushes, the present utility model has the advantage of a brushing function. The controller controls the operation of the servo motor. The output end of the servo motor drives the lead screw to rotate. The lead screw makes the movable plate move upward through the threaded connection with the movable plate. The movable plate drives the cleaning plate to move upward. At this time, the cloth bag is located inside the cleaning holes, and the cleaning brushes perform brushing treatment on the dust adhered to the surface of the cloth bag, thereby improving the cleaning effect.
[0016] 2. Through the cooperation of the water tank and the dust reduction mechanism, the utility model has the advantage of fogging dust reduction function. During the discharging process of the ash discharge valve, dust will generate a dust-raising phenomenon. At this time, the controller controls the water pump to operate. The water pump extracts the water liquid in the inner cavity of the water tank through the water suction pipe. Under the action of the water pump and the conveying pipe, the water liquid is conveyed to the round pipe, and the round pipe sprays the water liquid atomically through the nozzle. The water liquid sprays and reduces the dust, enabling it to settle quickly and preventing the occurrence of dust-raising phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a three-dimensional sectional view of the structure of the utility model;
[0018] Figure 2 is a three-dimensional view of the brush sweeping mechanism of the utility model;
[0019] Figure 3 is a three-dimensional view of the partial structure of the utility model;
[0020] Figure 4 is a three-dimensional view of the pulse tube structure of the utility model;
[0021] Figure 5 is a three-dimensional view of the dust reduction mechanism of the utility model;
[0022] Figure 6 is a three-dimensional view of the structure of the utility model.
[0023] In the figure: 1. Box body; 2. Hopper; 3. Ash discharge valve; 4. Partition board; 5. Brush sweeping mechanism; 6. Servo motor; 7. Lead screw; 8. Movable plate; 9. Cleaning plate; 10. Cleaning hole; 11. Cleaning brush; 12. Fan; 13. Cylinder body; 14. Cloth bag; 15. Water tank; 16. Dust reduction mechanism; 17. Pulse tube; 18. Controller; 19. Water pump; 20. Water suction pipe; 21. Conveying pipe; 22. Round pipe; 23. Nozzle; 24. Support rod; 25. Guide rod; 26. Exhaust pipe; 27. Solenoid valve; 28. Suction air pipe; 29. Intake air pipe. SPECIFIC EMBODIMENTS
[0024] Please refer to Figures 1-6, A dust removal device for a thermal power boiler, comprising a box body 1, a funnel 2 and a dust discharge valve 3. A maintenance plate is connected to the front side of the box body 1 by bolts. By setting the maintenance plate, the front side of the box body 1 can be disassembled, thus facilitating the disassembly and replacement of the filter bag 14. A partition plate 4 is fixedly connected to the inner cavity of the box body 1. A brushing mechanism 5 is connected to the rear side of the top of the partition plate 4 by bolts. The brushing mechanism 5 includes a servo motor 6. The output end of the servo motor 6 penetrates through the partition plate 4 and is fixedly connected to a lead screw 7. A movable plate 8 is threadedly sleeved on the bottom surface of the lead screw 7. A cleaning plate 9 is riveted to the front side of the movable plate 8. A cleaning hole 10 is opened at the top of the cleaning plate 9. A cleaning brush 11 is arranged on the inner wall of the cleaning hole 10. Both sides of the top of the box body 1 are communicated with a blower 12. A cylinder body 13 is fixedly connected through the top of the partition plate 4. A support is riveted to the bottom of the cylinder body 13. By setting the support, the filter bag 14 can be supported, so that the filter bag 14 always remains unfolded during the filtering process. A filter bag 14 is fixedly sleeved on the bottom surface of the cylinder body 13. A water tank 15 is riveted to the left side of the bottom of the inner cavity of the box body 1. A dust reduction mechanism 16 is connected to the right side of the bottom of the inner cavity of the box body 1 by bolts. A pulse tube 17 is fixedly connected through the right side of the cylinder body 13. A controller 18 is connected to the front side of the box body 1 by bolts.
[0025] Please refer to Figure 1 and Figure 5 , The dust reduction mechanism 16 includes a water pump 19. The bottom of the water pump 19 is connected to the bottom of the inner cavity of the box body 1 by bolts. The water inlet pipe of the water pump 19 is communicated with a water suction pipe 20. The left end of the water suction pipe 20 is communicated with the water tank 15. The water outlet pipe of the water pump 19 is communicated with a delivery pipe 21. The bottom end of the delivery pipe 21 penetrates to the bottom of the box body 1 and is communicated with a round pipe 22. A spray head 23 is communicated inside the round pipe 22. Both the front side and the rear side of the top of the round pipe 22 are fixedly connected with support rods 24. By setting the support rods 24, the round pipe 22 can be supported and fixed, so that it will not shake. The top end of the support rod 24 is riveted to the box body 1. The output end of the controller 18 is unidirectionally electrically connected to the water pump 19.
[0026] Please refer to Figure 1 and Figure 2 , Both sides of the top of the movable plate 8 are movably connected through guide rods 25. By setting the guide rods 25, the movable plate 8 can be guided, so that it is more stable during the moving process. The top end of the guide rod 25 is riveted to the partition plate 4.
[0027] Please refer to Figure 4 , The bottom of the pulse tube 17 is communicated with an exhaust pipe 26. By setting the exhaust pipe 26, pulse dust removal can be carried out on the surface of the filter bag 14. The exhaust pipe 26 is located inside the cylinder body 13. The right end of the pulse tube 17 penetrates to the right side of the box body 1. A solenoid valve 27 is fixedly installed on the right side of the surface of the pulse tube 17. The output end of the controller 18 is unidirectionally electrically connected to the solenoid valve 27.
[0028] Please refer to Figure 6 , a water filling pipe is connected to the top of the front side of the water tank 15. By setting the water filling pipe, it is convenient for the user to add liquid to the inner cavity of the water tank 15, and the front end of the water filling pipe penetrates through to the front side of the box body 1.
[0029] Please refer to Figure 3 , the air inlet pipe of the fan 12 penetrates through to the inner cavity of the box body 1 and is connected with an air extraction pipe 28. By setting the air extraction pipe 28, a negative pressure can be generated in the inner cavity of the box body 1, and then the flue gas can be sucked and processed. The bottom end of the air extraction pipe 28 is connected with the cylinder body 13.
[0030] Please refer to Figure 1 , an air inlet pipe 29 is connected to the left side of the box body 1, and support legs are riveted to the four corners of the bottom of the box body 1. By setting the support legs, the box body 1 can be supported and fixed. The output end of the controller 18 is unidirectionally electrically connected to the servo motor 6, the ash discharge valve 3, and the fan 12 respectively.
[0031] Please refer to Figure 1 , both the two sides, the front side, and the rear side of the funnel 2 are fixedly connected to the inner wall of the box body 1, and the bottom end of the funnel 2 penetrates through to the bottom of the box body 1 and is connected to the ash discharge valve 3 by bolts.
[0032] During use, an appropriate amount of liquid is added to the inner cavity of the water tank 15 through the water filling pipe. The air outlet pipe of the external air pump is connected to the right side of the pulse pipe 17, and the flue gas pipe of the power boiler is connected to the air inlet pipe 29. During the combustion process of the power boiler, flue gas will be generated. At this time, the dust-containing flue gas is transported to the inner cavity of the box body 1 through the air inlet pipe 29. The controller 18 controls the fan 12 to operate. The fan 12 sucks the dust-containing flue gas through the air extraction pipe 28 and the cylinder body 13. The dust bag 14 filters the impurities contained in the flue gas, and the dust adheres to the surface of the dust bag 14. When it is necessary to clean the surface of the dust bag 14, the controller 18 controls the solenoid valve 27 to open. At this time, the gas is blown into the inside of the dust bag 14 through the pulse pipe 17 and the exhaust pipe 26, so as to perform pulse cleaning on it. At the same time, the controller 18 controls the servo motor 6 to operate. The output end of the servo motor 6 drives the lead screw 7 to rotate. The lead screw 7 is threadedly connected with the movable plate 8 to make the movable plate 8 move upward. The movable plate 8 drives the cleaning plate 9 to move upward. At this time, the dust bag 14 is located in the inner cavity of the cleaning hole 10, and the cleaning brush 11 brushes the dust adhered to the surface of the dust bag 14, so as to improve the cleaning effect. The dust falls into the inside of the funnel 2. When it is necessary to discharge the dust, the ash discharge valve 3 is opened. During the discharging process of the ash discharge valve 3, dust will generate a dust raising phenomenon. At this time, the controller 18 controls the water pump 19 to operate. The water pump 19 extracts the liquid in the inner cavity of the water tank 15 through the water extraction pipe 20. The liquid is transported to the round pipe 22 under the action of the water pump 19 and the conveying pipe 21. The round pipe 22 atomizes and sprays the liquid through the nozzle 23. The liquid sprays and suppresses the dust, so that it can quickly settle and there will be no dust raising phenomenon.
[0033] In summary, the dust removal device for thermal power boilers solves the problems that in the existing dust removal devices for thermal power boilers during use, stubborn dust adhering to the surface of the cloth bags cannot be effectively removed, and atomized dust reduction cannot be carried out during ash discharge through the cooperation of the servo motor 6, the lead screw 7, the movable plate 8, the cleaning plate 9, the cleaning holes 10, the cleaning brushes 11, the water tank 15 and the dust reduction mechanism 16.
Claims
1. A dust removal device for a thermal power boiler, comprising a housing (1), a hopper (2) and an ash discharge valve (3), characterized in that: The inner cavity of the box body (1) is fixedly connected to a partition (4), and the rear side of the top of the partition (4) is connected to a brushing mechanism (5) by bolts. The brushing mechanism (5) includes a servo motor (6), and the output end of the servo motor (6) passes through the partition (4) and is fixedly connected to a screw rod (7). The bottom thread sleeve of the surface of the screw rod (7) is provided with a movable plate (8), and the front side of the movable plate (8) is riveted with a cleaning plate (9), and the top of the cleaning plate (9) is provided with a cleaning hole (10), and the inner wall of the cleaning hole (10) is provided with a cleaning A brush (11) is provided, fans (12) are connected to both sides of the top of the box (1), a cylinder (13) is fixedly connected to the top of the partition (4), a cloth bag (14) is fixedly sleeved on the bottom of the surface of the cylinder (13), a water tank (15) is riveted to the left side of the bottom of the inner cavity of the box (1), a dust suppression mechanism (16) is bolted to the right side of the bottom of the inner cavity of the box (1), a pulse tube (17) is fixedly connected to the right side of the cylinder (13), and a controller (18) is bolted to the front side of the box (1).
2. A dust removal device for a thermal power boiler according to claim 1, characterized in that: The dust suppression mechanism (16) comprises a water pump (19), the bottom of which is connected to the bottom of the inner cavity of the casing (1) by bolts, the water inlet pipe of the water pump (19) is connected to a water pump (20), the left end of which is connected to the water tank (15), the water outlet pipe of the water pump (19) is connected to a delivery pipe (21), the bottom end of which passes through the bottom of the casing (1) and is connected to a round pipe (22), the inside of which is connected to a nozzle (23), the front and rear sides of the top of the round pipe (22) are fixedly connected to a support rod (24), the top end of which is riveted to the casing (1), and the output end of the controller (18) is unidirectionally electrically connected to the water pump (19).
3. A dust removal device for a thermal power boiler according to claim 1, characterized in that: Both sides of the top of the movable plate (8) are movably connected with guide rods (25), and the top ends of the guide rods (25) are riveted to the partition plate (4).
4. A dust removal device for a thermal power boiler according to claim 1, characterized in that: The bottom of the pulse tube (17) is connected to an exhaust pipe (26), and the exhaust pipe (26) is located in the inner cavity of the cylinder (13). The right end of the pulse tube (17) passes through the right side of the box (1). A solenoid valve (27) is fixedly installed on the right side of the surface of the pulse tube (17), and the output end of the controller (18) is unidirectionally electrically connected to the solenoid valve (27).
5. The dust removal device for a thermal power boiler according to claim 1, characterized in that: The top of the front side of the water tank (15) is connected to a water supply pipe, and the front end of the water supply pipe passes through the front side of the box body (1).
6. A dust removal device for a thermal power boiler according to claim 1, characterized in that: The air inlet pipe of the fan (12) penetrates the inner cavity of the box body (1) and is connected to an exhaust pipe (28); the bottom end of the exhaust pipe (28) is connected to the cylinder body (13).
7. A dust removal device for a thermal power boiler according to claim 1, characterized in that: The left side of the box body (1) is connected to an air inlet pipe (29), the four corners of the bottom of the box body (1) are riveted with support legs, and the output end of the controller (18) is unidirectionally electrically connected to the servo motor (6), the ash discharge valve (3) and the fan (12) respectively.
8. The dust removal device for a thermal power boiler according to claim 1, characterized in that: Both sides, the front side and the rear side of the funnel (2) are fixedly connected to the inner wall of the box body (1); the bottom end of the funnel (2) penetrates to the bottom of the box body (1) and is connected to the ash discharge valve (3) via bolts.