Waste gas treatment device for coal-fired power plant

Abstract

The utility model discloses a coal-fired power plant waste gas treatment device which comprises a water tower, the lower end face of the water tower is rotationally connected with a rotating seat, the upper end face of the rotating seat is fixedly connected with a plurality of bottom surface scraping plates, and the ends, away from the rotating seat, of the bottom surface scraping plates are fixedly connected with side surface scraping plates. A working gear is fixedly connected to the lower end face of the rotating seat, a power gear is arranged on the outer side of the water tower, the power gear is meshed with the working gear, a power equipment assembly is arranged on the power gear, a water pumping pipe penetrates through the water tower, and a blocking column is arranged in the water pumping pipe. According to the utility model, waste gas can be better combined with an aqueous solution to complete treatment through stirring and scraping, meanwhile, powder is prevented from being adhered when encountering water, and the waste gas can be guided to smoothly complete high-altitude emission.

Description

Technical Field

[0001] The utility model relates to the technical field related to coal-fired power plants, in particular to an exhaust gas treatment device for coal-fired power plants. Background Art

[0002] When a coal-fired power plant conducts coal combustion work, a large amount of exhaust gas will be generated. The exhaust gas needs to go through multiple treatments to reduce emissions. After retrieval, the existing patent CN216976814U, an exhaust gas purification device for a thermal power plant, has the lower end of the exhaust pipe main body immersed in water, and water is used to remove impurities and residual dust dissolved in water in the purified exhaust gas. However, the structures such as the pool main body in the existing technology are too open, and the residual exhaust gas cannot effectively combine with the aqueous solution. Also, the dust easily adheres to the inner wall of the pool main body after contacting water, and the treated gas cannot be conveniently guided to a high place for emission.

[0003] Therefore, this solution proposes an exhaust gas treatment device for coal-fired power plants to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problems existing in the prior art, and to propose an exhaust gas treatment device for coal-fired power plants.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An exhaust gas treatment device for coal-fired power plants includes a water tower. A rotating seat is rotatably connected to the lower end surface of the water tower. A plurality of bottom scrapers are fixedly connected to the upper end surface of the rotating seat. One end of each of the plurality of bottom scrapers away from the rotating seat is fixedly connected to a side scraper. A working gear is fixedly connected to the lower end surface of the rotating seat. A power gear is arranged outside the water tower, and the power gear meshes with the working gear. A power equipment assembly is arranged on the power gear. A water suction pipe penetrates through the water tower, and a blocking column is arranged in the water suction pipe.

[0007] Preferably, the power equipment assembly includes a power shaft fixedly connected to the power gear. A fixed frame is arranged at the gas outlet of the water tower. A rotating block is rotatably connected to the fixed frame. One end of the rotating block is fixedly connected to a power turbine, and the other end is fixedly connected to a first bevel gear. One end of the power shaft penetrates through the gas outlet of the water tower and is provided with a second bevel gear, and the second bevel gear meshes with the first bevel gear.

[0008] Preferably, a handle is fixedly connected to the lower end surface of the working gear.

[0009] Preferably, an auxiliary frame is fixedly connected to an outer wall of one side of the water tower, and the power shaft is rotatably connected to the auxiliary frame.

[0010] Preferably, a threaded pipe is provided on the upper end surface of the water pumping pipe, a threaded seat is connected to the inner thread of the threaded pipe, and the threaded seat is fixedly connected to the blocking column.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the utility model, with the help of the air intake and outlet of the water tower and its own closure, the treated harmless waste gas can be effectively guided to be discharged to a high place. At the same time, with the help of the power of the exhaust gas, the aqueous solution for treating harmful substances in the waste gas can be stirred, so that the waste gas treatment work can be better completed.

[0013] 2. In the utility model, when the aqueous solution is stirred, the water-stained powder can be effectively prevented from sinking to the bottom, so that the powder can be fully mixed in the aqueous solution, and then the extraction and replacement of the aqueous solution can be better performed.

[0014] When replacing water, the staff can temporarily close the air inlet and outlet of the water tower 1, open the pumping pipe 7, and then use the pumping pump and other equipment to extract the sewage through the pumping pipe 7, and then pour the new aqueous solution into the water tower 1. During the extraction process, the working gear 5 can be rotated by operating the handle 16 to rotate the bottom scraper 3 and the side scraper 4 to continuously stir the sewage, so that the dust in the sewage will not sink to the bottom, but can be mixed in the aqueous solution and better extracted. Such processing does not require cumbersome disassembly and assembly, and can be frequently operated and used to perform simple aqueous solution replacement operations. After the overall work is completed, the water tower 1 can be disassembled and loaded for complete cleaning, which is very convenient for staff to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a waste gas treatment device for a coal-fired power plant proposed by the utility model;

[0016] Figure 2 This is a three-dimensional structural cross-sectional view of a waste gas treatment device for a coal-fired power plant proposed by the utility model;

[0017] Figure 3 This is a three-dimensional structural cross-sectional view of the gas outlet of a water tower of a waste gas treatment device for a coal-fired power plant proposed by the utility model.

[0018] In the figure: 1 water tower, 2 rotating seat, 3 bottom scraper, 4 side scraper, 5 working gear, 6 power gear, 7 water pumping pipe, 8 blocking column, 9 power shaft, 10 fixed frame, 11 rotating block, 12 auxiliary frame, 13 power turbine, 14 first bevel gear, 15 second bevel gear, 16 handle, 17 threaded pipe, 18 threaded seat. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0020] Referring to Figures 1 - 3 , an exhaust gas treatment device for a coal-fired power plant, including a water tower 1. A rotating seat 2 is rotatably connected to the lower end surface of the water tower 1. A plurality of bottom scrapers 3 are fixedly connected to the upper end surface of the rotating seat 2. One end of each of the plurality of bottom scrapers 3 away from the rotating seat 2 is fixedly connected to a side scraper 4. A working gear 5 is fixedly connected to the lower end surface of the rotating seat 2. A handle 16 is fixedly connected to the lower end surface of the working gear 5. The handle 16 facilitates the staff to rotate the working gear 5 and provides power for manual stirring and mixing. A power gear 6 is arranged outside the water tower 1. The power gear 6 is meshed with the working gear 5. A power equipment assembly is arranged on the power gear 6. The power equipment assembly includes a power shaft 9 fixedly connected to the power gear 6. An auxiliary frame 12 is fixedly connected to one outer wall of the water tower 1. The power shaft 9 is rotatably connected to the auxiliary frame 12. The auxiliary frame 12 makes the setting of the power shaft 9 more stable;

[0021] A fixing frame 10 is arranged at the air outlet of the water tower 1. By means of the air outlet, the harmless exhaust gas after treatment can be effectively guided to a high place, and then the atmospheric emission work can be completed at a high place. A rotating block 11 is rotatably connected to the fixing frame 10. One end of the rotating block 11 is fixedly connected to a power turbine 13, and the other end is fixedly connected to a first bevel gear 14. One end of the power shaft 9 penetrates through the air outlet of the water tower 1 and is provided with a second bevel gear 15. The second bevel gear 15 is meshed with the first bevel gear 14. At this time, with the setting at the air outlet, the airflow power is effectively utilized as a power source to complete the stirring and other work in the exhaust gas treatment process. A water suction pipe 7 penetrates through the water tower 1. A blocking column 8 is arranged in the water suction pipe 7. A threaded pipe 17 is arranged on the upper end surface of the water suction pipe 7. A threaded seat 18 is threadedly connected in the threaded pipe 17. The threaded seat 18 is fixedly connected to the blocking column 8. The blocking and taking and placing work of the blocking column 8 can be more stable and convenient.

[0022] During the use of the present utility model, first, the aqueous solution for exhaust gas treatment is added into the water tower 1 through the water suction pipe 7. Then, the blocking column 8 can be inserted into the water suction pipe 7, and the fixing work can be completed by rotating the threaded seat 18 into the threaded pipe 17. After blocking the water suction pipe 7, it can effectively prevent the bubbles generated by the exhaust gas entering the water from entering the water suction pipe 7 and being discharged through the water suction pipe 7, resulting in incomplete exhaust gas emission guidance. Then, the air inlet and air outlet of the water tower 1 can be opened. The exhaust gas enters the aqueous solution in the water tower 1. The residual harmful gas is absorbed by means of the aqueous solution, and at the same time, the dust and other sundries in the exhaust gas are left in the aqueous solution after being wetted by water, and the residual treatment work of the exhaust gas is successfully completed;

[0023] The insoluble part of these waste gases will float away from the water after treatment, and then be discharged through the gas outlet. By means of the gas outlet, the harmless waste gas can be smoothly guided to a high place for emission. During this process, the harmless waste gas will drive the power turbine 13 to rotate, and then drive the power shaft 9 to rotate through the rotating block 11, the first bevel gear 14 and the second bevel gear 15 which are meshed. Then, the rotating seat 2 is driven to rotate through the power gear 6 and the working gear 5 which are meshed. The rotating seat 2 will also drive the bottom scraper 3 and the side scraper 4 to rotate, so as to scrape the side wall at the bottom of the water tower 1, avoiding the long-term accumulation and adhesion of dust and sundries on the inner wall, so that the subsequent extraction work can smoothly suck away the dust and sundries. At the same time, the rotating bottom scraper 3 and side scraper 4 can also stir the aqueous solution, so that the harmful components in the waste gas can be more fully eliminated;

[0024] The above is only the preferred specific implementation mode of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent replacement or change, and should be covered within the protection scope of the present utility model.

Claims

1. A waste gas treatment device for a coal-fired power plant, comprising a water tower (1), characterized in that: A rotating seat (2) is rotatably connected to the lower end surface of the water tower (1), a plurality of bottom scrapers (3) are fixedly connected to the upper end surface of the rotating seat (2), and a side scraper (4) is fixedly connected to one end of each of the bottom scrapers (3) away from the rotating seat (2). A working gear (5) is fixedly connected to the lower end surface of the rotating seat (2). A power gear (6) is provided on the outer side of the water tower (1), the power gear (6) is meshed with the working gear (5), and a power equipment component is provided on the power gear (6). A water pumping pipe (7) runs through the water tower (1), and a blocking column (8) is provided in the water pumping pipe (7).

2. A coal-fired power plant exhaust gas treatment device according to claim 1, characterized in that: The power equipment assembly comprises a power shaft (9) fixedly connected to a power gear (6); a fixed frame (10) is provided at an air outlet of the water tower (1); a rotating block (11) is rotatably connected to the fixed frame (10); one end of the rotating block (11) is fixedly connected to a power turbine (13), and the other end is fixedly connected to a first bevel gear (14); one end of the power shaft (9) passes through the air outlet of the water tower (1) and is provided with a second bevel gear (15); the second bevel gear (15) is meshed with the first bevel gear (14).

3. A coal-fired power plant exhaust gas treatment device according to claim 1, characterized in that: A handle (16) is fixedly connected to the lower end surface of the working gear (5).

4. A waste gas treatment device for a coal-fired power plant according to claim 2, characterized in that: An auxiliary frame (12) is fixedly connected to an outer wall of one side of the water tower (1), and the power shaft (9) is rotatably connected to the auxiliary frame (12).

5. The waste gas treatment device for a coal-fired power plant according to claim 1, characterized in that: A threaded tube (17) is provided on the upper end surface of the water pumping pipe (7), and a threaded seat (18) is internally threadedly connected to the threaded tube (17), and the threaded seat (18) is fixedly connected to the blocking column (8).

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