Waste incineration power plant flue gas treatment equipment with staged purification function

Abstract

The utility model discloses graded purification flue gas treatment equipment for a waste incineration power plant, and relates to the technical field of waste incineration flue gas treatment. A second box body is fixedly arranged at the top end of the first box body; a cleaning box is fixedly connected to the outer side of the first box body; a threaded rod is rotationally connected to the inner wall of the cleaning box and the interior of the first box body; a movable frame is inserted into the outer side of the threaded rod in a threaded mode; a plurality of first filter plates are installed on the inner wall of the first box body, rotating rods are rotationally arranged in the collecting boxes, cams fixedly sleeve the outer sides of the rotating rods, and the collecting boxes are located below the first filter plates correspondingly; through mutual cooperation of the movable frame, the movable frame, the collecting box, the rotating rod, the cam and other structures, impurities attached to the first filter plate can be vibrated, cleaned and collected, the problem that the filter plate is frequently disassembled and cleaned is avoided, and the service life of the filter plate is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of waste incineration flue gas treatment technology, specifically a graded purification flue gas treatment device for waste incineration power plants. Background Technology

[0002] Waste-to-energy incineration is a resource-based treatment method that uses high-temperature incineration of solid waste such as municipal solid waste to generate heat energy, which is then converted into steam to drive turbines for power generation. Flue gas treatment plays a crucial role in this process, primarily including reducing emissions of harmful gases and particulate matter, controlling emissions of dioxins, heavy metals, and acidic gases, and recovering secondary pollutants. Through multiple processes such as heating, combustion, washing, wet scrubbing, and selective catalytic reduction, pollutants in the flue gas are captured, neutralized, or decomposed, ensuring that emissions comply with environmental regulations, reducing the impact on the atmosphere and surrounding environment, while also improving power generation efficiency and the long-term operational safety of the system.

[0003] However, existing filter plates are not easy to clean, and deposits will accumulate quickly, leading to increased filtration resistance and affecting flue gas treatment efficiency; frequent clogging will increase cleaning frequency and downtime, increase maintenance costs, and shorten filter plate life; in order to address the above problems, the inventors propose a staged purification flue gas treatment device for waste incineration power plants to solve the above problems. Utility Model Content

[0004] To address the cumbersome process of cleaning filter plates, the purpose of this invention is to provide a staged purification flue gas treatment device for waste incineration power plants.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a graded purification flue gas treatment device for waste incineration power plants, comprising a No. 1 box, a No. 2 box fixedly mounted on the top of the No. 1 box, a cleaning box fixedly connected to the outside of the No. 1 box, a threaded rod rotatably connected to the inner wall of the cleaning box and the inside of the No. 1 box, a movable frame threadedly inserted on the outside of the threaded rod, a plurality of collection boxes fixedly mounted on the outside of the movable frame, a plurality of No. 1 filter plates installed on the inner wall of the No. 1 box, a rotating rod rotatably mounted inside the collection box, a cam fixedly mounted on the outside of the rotating rod, a plurality of collection boxes respectively located below a plurality of No. 1 filter plates, fixedly mounted symmetrically on both sides of the inner wall of the No. 1 box, auxiliary rods arranged in an array fixedly mounted on the top of the No. 1 filter plates, the auxiliary rods penetrating and inserted into the fixed plates, a compression spring movably mounted on the outside of the auxiliary rods, and the collection boxes movably inserted into the No. 1 box.

[0006] Preferably, a connecting pipe connects the first box and the second box. A second filter plate is fixedly installed on the inner wall of the second box. A mounting plate is fixedly installed on the inner wall of the second box in a symmetrical arrangement. Spray nozzles are installed in an array inside the mounting plate. A pump body is installed on the outer side of the second box. An infusion pipe is connected to the output end of the second pump body. The infusion pipe is fixedly connected to the spray nozzles. The input end of the pump body is inserted into the second box.

[0007] Preferably, an air inlet pipe is fixedly connected to the bottom of the first box, an air outlet pipe is fixedly connected to the top of the second box, a liquid inlet pipe is fixedly provided on the outside of the second box, a maintenance plate is detachably installed on the outside of the cleaning box, and several rotating rods are connected by synchronous pulleys and synchronous belts.

[0008] Preferably, a limiting rod is fixedly provided on the inner wall of the cleaning box, the limiting rod is movably inserted into the movable frame, a first motor is installed on the outside of the movable frame, the end of the output shaft of the first motor is inserted through the movable frame and fixedly connected to one of the rotating rods, a second motor is installed on the outside of the cleaning box, the end of the output shaft of the second motor is inserted through the cleaning box and fixedly connected to the threaded rod.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] 1. In this utility model, by setting up a movable frame, a collection box, a rotating rod and a cam and other structures to work together, the impurities attached to the No. 1 filter plate can be shaken cleaned and collected, avoiding the problem of frequently disassembling and cleaning the filter plate, and extending the service life of the filter plate.

[0011] 2. In this utility model, by setting up a second filter plate, an installation plate, a nozzle and a pump body and other structures to work together, the acidic components such as SO2, HCl and HF in the flue gas can be converted into wet slag or gypsum through spraying. At the same time, the calcium carbonate solution after use can be recycled, thereby reducing costs. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a side view of the overall structure of this utility model.

[0015] Figure 3 This is a cross-sectional schematic diagram of the No. 1 box and its connecting structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the collection box and its connection structure of this utility model.

[0017] In the diagram: 1. Box 1; 11. Box 2; 12. Air inlet pipe; 13. Air outlet pipe; 14. Liquid inlet pipe; 15. Fixing plate; 16. Auxiliary rod; 17. Filter plate 1; 18. Compression spring; 19. Connecting pipe; 2. Cleaning box; 21. Threaded rod; 22. Moving frame; 23. Collection box; 24. Rotating rod; 25. Cam; 26. Motor 1; 27. Motor 2; 28. Inspection plate; 29. ​​Limiting rod; 3. Filter plate 2; 31. Mounting plate; 32. Nozzle; 33. Pump body; 34. Infusion pipe. Detailed Implementation

[0018] 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.

[0019] like Figure 1-4As shown, this utility model provides a graded purification flue gas treatment device for waste incineration power plants, including a first housing 1. A second housing 11 is fixedly installed at the top of the first housing 1. The first housing 1 is used for multi-stage filtration of impurities in the flue gas, and the second housing 11 is used for removing harmful gases from the flue gas. Maintenance plates can be detachably installed on the outer sides of both the first housing 1 and the second housing 11 for internal inspection and maintenance. A cleaning box 2 is fixedly connected to the outer side of the first housing 1, facilitating the collection of collection boxes 23. A threaded rod 21 is rotatably connected to the inner wall of the cleaning box 2 and the inner wall of the first housing 1. The rotation of the threaded rod 21 drives the lateral movement of a moving frame 22. The moving frame 22 is threadedly inserted into the outer side of the threaded rod 21. The movement of the moving frame 22 drives the lateral movement of the collection boxes 23. Several collection boxes 23 are fixedly installed on the outer side of the moving frame 22. When the collection boxes 23 move to below the first filter plate 17, they can collect dust and impurities. Several first filter plates 17 are installed on the inner wall of the first housing 1. Multiple No. 1 filter plates 17 are arranged from bottom to top with decreasing apertures to prevent impurities from clogging them. A rotating rod 24 is mounted inside the collection box 23. The rotation of the rotating rod 24 drives the cam 25 to rotate. The cam 25 is fixedly sleeved on the outside of the rotating rod 24. The rotation of the cam 25 causes the No. 1 filter plate 17 to vibrate up and down. Several collection boxes 23 are located below several No. 1 filter plates 17. Fixed plates 15 are symmetrically distributed on both sides of the inner wall of the No. 1 box 1. The fixed plates 15 are used for fixed support. The top of the No. 1 filter plate 17 is fixed with an array of auxiliary rods 16. The auxiliary rods 16 are inserted through the fixed plates 15. Compression springs 18 are movably sleeved on the outside of the auxiliary rods 16. The collection box 23 is movably inserted into the No. 1 box 1. With the assistance of the compression springs 18, the No. 1 filter plate 17 can always be in contact with the outside of the cam 25. The rotation of the cam 25 causes the No. 1 filter plate 17 to vibrate, causing most of the dust and impurities to fall into the collection box 23.

[0020] A connecting pipe 19 connects the No. 1 box 1 and the No. 2 box 11. The No. 2 filter plate 3 is fixedly installed on the inner wall of the No. 2 box 11. The No. 2 mounting plate 31 is fixedly installed on the inner wall of the No. 2 box 11 in a symmetrical arrangement. The nozzles 32 are installed in an array within the mounting plate 31. A pump body 33 is installed on the outer side of the No. 2 box 11. The output end of the No. 2 pump body 33 is connected to a liquid infusion pipe 34. The liquid infusion pipe 34 is fixedly connected to the nozzles 32. The input end of the pump body 33 is inserted into the No. 2 box 11.

[0021] By adopting the above technical solution, acidic components such as SO2, HCl, and HF in flue gas can be converted into wet slag or gypsum through spraying. At the same time, the used calcium carbonate solution can be recycled, thereby reducing costs.

[0022] An air inlet pipe 12 is fixedly connected to the bottom of the first box 1, an air outlet pipe 13 is fixedly connected to the top of the second box 11, and a liquid inlet pipe 14 is fixedly provided on the outside of the second box 11.

[0023] By adopting the above technical solution, the air inlet pipe 12 transmits the exhaust gas to the first chamber 1, the air outlet pipe 13 is used to discharge the treated gas in the second chamber 11, and the liquid inlet pipe 14 is used to replenish and replace the calcium carbonate solution in the second chamber 11.

[0024] A maintenance plate 28 is detachably installed on the outside of the cleaning box 2.

[0025] By adopting the above technical solution, the impurities in the collection box 23 inside the inspection plate 28 can be cleaned by disassembling the inspection plate 28.

[0026] Several rotating rods 24 are connected by synchronous pulleys and synchronous belts.

[0027] By adopting the above technical solution, one of the rotating rods 24 is rotated, and multiple rotating rods 24 are rotated synchronously through the synchronous pulley and synchronous belt.

[0028] A limiting rod 29 is fixedly installed on the inner wall of the cleaning box 2, and the limiting rod 29 is movably inserted into the movable frame 22.

[0029] By adopting the above technical solution, the limiting rod 29 can assist the moving frame 22 in lateral movement.

[0030] A motor 26 is installed on the outside of the movable frame 22. The end of the output shaft of the motor 26 is inserted through the movable frame 22 and fixedly connected to one of the rotating rods 24.

[0031] By adopting the above technical solution, the end of the output shaft of motor 26 rotates, driving the first rotating rod 24 to rotate, thereby providing power output.

[0032] A second motor 27 is installed on the outside of the cleaning box 2. The end of the output shaft of the second motor 27 is inserted through the cleaning box 2 and fixedly connected to the threaded rod 21.

[0033] By adopting the above technical solution, the output shaft end of the No. 2 motor 27 rotates, driving the threaded rod 21 to rotate, thereby providing power output.

[0034] Working principle: First, the collection box 23 moves into the cleaning box 2. The exhaust gas enters the first box 1 through the inlet pipe 12. At this time, it will pass through three first filter plates 17 to perform multi-stage filtration of the flue gas. Then, it is transmitted to the second box 11 through the connecting pipe 19. At this time, the pump body 33 is started to work. The input end of the pump body 33 draws out the calcium carbonate solution and transmits it to the nozzle 32. The nozzle 32 sprays out the solution to remove acidic components such as SO2, HCl, and HF from the flue gas. At the same time, the second filter plate 3 can filter the generated wet sludge or gypsum. The calcium carbonate solution can be reused multiple times, thereby reducing costs.

[0035] When it is necessary to clean the impurities attached to the outside of the No. 1 filter plate 17, the No. 2 motor 27 is started. The output shaft of the No. 2 motor 27 rotates, driving the threaded rod 21 to rotate. The rotation of the threaded rod 21 drives the moving frame 22 to move into the No. 1 housing 1 with the assistance of the limit rod 29. The movement of the moving frame 22 drives the collection box 23 to move below the No. 1 filter plate 17. Then, the No. 1 motor 26 is started, driving the output shaft of the No. 1 motor 26 to rotate. The rotation of the output shaft of the No. 1 motor 26 drives one of the rotating rods 24 to rotate. Through the synchronous pulley and synchronous belt, multiple rotating rods 24 rotate, which in turn drives the cam 25 to rotate. The rotation of the cam 25 causes the No. 1 filter plate 17 to vibrate up and down with the assistance of the auxiliary rod 16 and the compression spring 18. This vibrates the impurities on the No. 1 filter plate 17 into the collection box 23, avoiding the problem of frequent disassembly and cleaning of the filter plate and extending the service life of the filter plate.

[0036] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A staged purification flue gas treatment device for waste incineration power plants, comprising a first housing (1), characterized in that: A second box (11) is fixedly installed at the top of the first box (1). A cleaning box (2) is fixedly connected to the outside of the first box (1). A threaded rod (21) is rotatably connected to the inner wall of the cleaning box (2) and the inside of the first box (1). A movable frame (22) is threaded into the outside of the threaded rod (21). Several collection boxes (23) are fixedly installed on the outside of the movable frame (22). Several first filter plates (17) are installed on the inner wall of the first box (1). The collection box (23) is rotatably provided with a rotating rod (24), and a cam (25) is fixedly sleeved on the outside of the rotating rod (24). Several collection boxes (23) are located below several No. 1 filter plates (17). Fixed plates (15) are fixedly arranged symmetrically on both sides of the inner wall of the No. 1 box (1). Auxiliary rods (16) are fixedly arranged in an array at the top of the No. 1 filter plate (17). The auxiliary rods (16) are inserted through the fixed plates (15). A compression spring (18) is movably sleeved on the outside of the auxiliary rods (16). The collection box (23) is movably inserted into the No. 1 box (1).

2. The staged purification flue gas treatment equipment for waste incineration power plants as described in claim 1, characterized in that, A connecting pipe (19) is connected between the first box (1) and the second box (11). The second filter plate (3) is fixedly installed on the inner wall of the second box (11). The mounting plate (31) is fixedly installed on the inner wall of the second box (11) in a symmetrical arrangement. The nozzles (32) are installed in an array inside the mounting plate (31). A pump body (33) is installed on the outside of the second box (11). The output end of the pump body (33) is connected to an infusion pipe (34). The infusion pipe (34) is fixedly connected to the nozzles (32). The input end of the pump body (33) is inserted into the second box (11).

3. The staged purification flue gas treatment equipment for waste incineration power plants as described in claim 1, characterized in that, An air inlet pipe (12) is fixedly connected to the bottom of the first box (1), an air outlet pipe (13) is fixedly connected to the top of the second box (11), and a liquid inlet pipe (14) is fixedly provided on the outside of the second box (11).

4. The staged purification flue gas treatment equipment for waste incineration power plants as described in claim 1, characterized in that, The cleaning box (2) has a detachable inspection plate (28) installed on its outer side.

5. The staged purification flue gas treatment equipment for waste incineration power plants as described in claim 1, characterized in that, Several of the rotating rods (24) are connected by a synchronous pulley and a synchronous belt.

6. The staged purification flue gas treatment equipment for waste incineration power plants as described in claim 1, characterized in that, The cleaning box (2) is fixedly provided with a limiting rod (29) on its inner wall, and the limiting rod (29) is movably inserted into the movable frame (22).

7. The staged purification flue gas treatment equipment for waste incineration power plants as described in claim 1, characterized in that, A motor (26) is installed on the outside of the movable frame (22). The output shaft end of the motor (26) is inserted through the movable frame (22) and fixedly connected to one of the rotating rods (24).

8. The staged purification flue gas treatment equipment for waste incineration power plants as described in claim 1, characterized in that, A second motor (27) is installed on the outside of the cleaning box (2). The output shaft end of the second motor (27) is inserted through the cleaning box (2) and fixedly connected to the threaded rod (21).

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