Recycled aluminum waste gas circulating spray type dust removal device

Abstract

The utility model relates to the technical field of waste gas treatment, and discloses a secondary aluminum waste gas circulating spray type dust removal device which comprises a mounting shell, one side of the mounting shell is in through connection with a gas inlet pipe, the other side of the mounting shell is in through connection with an exhaust pipe, the lower surface of the mounting shell is fixedly connected with a water storage tank, and one side of the water storage tank is in through connection with a runner pipe. And one end of the circulating pipe is in through connection with a spraying pipe, the lower surface of the spraying pipe is in through connection with a spraying head, and the other side of the water storage tank is in through connection with a backflow pipe. According to the utility model, the function of backwashing the filter plate in the dust removal device is added, and the filter plate is reversely flushed by high-pressure water flow, so that accumulation of particulate matters is effectively reduced, impurities blocked in filter holes are flushed out, the blockage phenomenon of the filter plate and the filter holes is reduced, and the impurities, flushed out by the backwashing mechanism, in the filter holes are favorably scraped and discharged; the re-blocking problem caused by impurity accumulation on the surface of the filter plate is further reduced.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a circulating spray dust removal device for recycled aluminum waste gas. Background Technology

[0002] Recycled aluminum waste gas refers to the waste gas generated during the production of recycled aluminum. This waste gas mainly originates from the smelting process of scrap aluminum. Commonly used fuels in the smelting process of recycled aluminum include coal, coke, heavy oil, diesel, coal gas, and natural gas. These fuels generate a large amount of waste gas during combustion, which includes soot and gases containing sulfur, carbon, phosphorus, and nitrogen oxides. Recycled aluminum waste gas contains a large amount of particulate matter. These particulate matter mainly comes from soot generated by fuel combustion, soot generated by the combustion of combustibles contained in the scrap aluminum itself, and waste gas dust generated by the reaction of additives and impurities in the furnace liquid. These particulate matter not only pollutes the environment but may also harm human health.

[0003] A search revealed that Chinese patent CN209302442U discloses a circulating spray dust removal device for recycled aluminum waste gas. Addressing the complex raw materials in the recycled aluminum industry, the production process generates both particulate-containing and gaseous pollutant-containing waste gases. Therefore, while treating the waste gas, the environmental impact of dust and harmful gases must be comprehensively considered. This device features a simple structure, improved dust removal efficiency, and water recycling, achieving water conservation and easy application.

[0004] The aforementioned dust removal device improves the dust removal efficiency. However, existing dust removal devices typically have filter plates inside to filter impurities in the gas. After prolonged filtration, impurities tend to remain on the surface of the filter plates. Furthermore, some impurities can become trapped in the filter holes due to the permeability of the filter plates, causing blockage. If the filter holes are blocked, the filter plates will have difficulty filtering impurities in the water vapor, and the water vapor will also be difficult to separate from the impurities, falling to the bottom of the mounting housing, thus reducing the dust removal efficiency. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a recycled aluminum waste gas recirculation spray dust removal device.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a recycled aluminum waste gas circulating spray dust removal device, comprising a mounting shell, an air inlet pipe connected through one side of the mounting shell, an exhaust pipe connected through the other side of the mounting shell, a water storage tank fixedly connected to the lower surface of the mounting shell, a flow pipe connected through one side of the water storage tank, a water pump connected through the middle of the flow pipe, a spray pipe connected through one end of the flow pipe, a spray head connected through the lower surface of the spray pipe, a return pipe connected through the other side of the water storage tank, one end of the return pipe connected through one side of the mounting shell, a filter plate fixedly connected inside the mounting shell, and a backwashing mechanism provided on one side of the water storage tank.

[0007] As a further description of the above technical solution:

[0008] The backwashing mechanism includes a connecting pipe that is connected to one side of the water storage tank. A booster pump is connected to the middle of the connecting pipe. A folded pipe is connected to one end of the connecting pipe. A water outlet pipe is connected to one end of the folded pipe. The folded pipe passes through one side of the mounting shell. Multiple nozzles are connected to the upper surface of the water outlet pipe.

[0009] As a further description of the above technical solution:

[0010] A fixed housing is fixedly connected to one side of the mounting housing, and a first stepper motor is fixedly installed on the other side of the mounting housing. A bidirectional lead screw is fixedly connected to the output end of the first stepper motor. Two connecting blocks are connected to the external threads of the bidirectional lead screw. A connecting rod is hinged to one side of each connecting block, and one end of each connecting rod is hinged to one side of the water outlet pipe.

[0011] As a further description of the above technical solution:

[0012] A discharge assembly is provided on one side of the mounting housing. The discharge assembly includes a second stepper motor, which is fixedly installed on one side of the mounting housing.

[0013] As a further description of the above technical solution:

[0014] The output end of the second stepper motor is fixedly connected to a screw, and a fixing rod is fixedly connected inside the mounting housing. The fixing rod is positioned above the filter plate.

[0015] As a further description of the above technical solution:

[0016] A scraper rod is slidably connected to the outside of the fixed rod. The scraper rod is threaded to the outside of the screw. A discharge pipe is connected through the other side of the mounting shell. The discharge pipe is located above the first stepper motor. A pipe cap is provided at one end of the discharge pipe.

[0017] As a further description of the above technical solution:

[0018] A drain pipe is connected through to the other side of the water storage tank, and an inlet pipe is connected through to the upper surface of the water storage tank. One end of the inlet pipe and the drain pipe are respectively threaded with a water-blocking cap.

[0019] This utility model has the following beneficial effects:

[0020] This invention, through the setting of a backwashing mechanism, facilitates the backwashing of the filter plates inside the dust removal device. Under the action of high-pressure water flow, the filter plates are washed by the counter-flowing water, reducing the accumulation of particulate matter and helping to flush out impurities clogging the filter holes in the filter plates, thereby reducing the clogging of the filter plates and filter holes. Furthermore, the action of the connecting rod pushing the water outlet pipe facilitates comprehensive backwashing of the filter plates, reducing the generation of washing dead corners.

[0021] This invention, through the setting of the discharge component, helps to scrape and discharge the impurities inside the filter holes flushed out by the backwashing mechanism. Cleaning the impurities filtered out of the filter plate helps to reduce the accumulation of impurities on the filter plate surface, thereby reducing the phenomenon of re-clogging of the filter holes due to accumulated impurities. In addition, the scraper is set as an inverted trapezoid, which helps to improve the scraping effect on impurities through the tip. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the fixed shell structure proposed in this utility model;

[0024] Figure 3 This is a schematic diagram of the reflux pipe structure proposed in this utility model;

[0025] Figure 4 This is a schematic diagram of the spray pipe structure proposed in this utility model;

[0026] Figure 5 This is a partial structural diagram of the connecting rod joint proposed in this utility model;

[0027] Figure 6 This is a schematic diagram of the scraper rod structure proposed in this utility model.

[0028] Legend:

[0029] 1. Mounting housing; 2. Air inlet pipe; 3. Exhaust pipe; 4. Water storage tank; 5. Flow pipe; 6. Spray pipe; 7. Spray head; 8. Return pipe; 9. Filter plate; 10. Connecting pipe; 11. Booster pump; 12. Folded pipe; 13. Water outlet pipe; 14. Nozzle; 15. Fixed housing; 16. First stepper motor; 17. Two-way lead screw; 18. Connecting block; 19. Connecting rod; 20. Second stepper motor; 21. Screw; 22. Fixed rod; 23. Scraper rod; 24. Discharge pipe; 25. Pipe cover; 26. Drain pipe; 27. Water inlet pipe; 28. Water blocking cover; 29. ​​Water pump. Detailed Implementation

[0030] 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.

[0031] As attached Figure 1-6 As shown, one embodiment of this utility model provides a recycled aluminum waste gas circulating spray dust removal device, including a mounting shell 1, an air inlet pipe 2 connected through one side of the mounting shell 1, an exhaust pipe 3 connected through the other side of the mounting shell 1, a water storage tank 4 fixedly connected to the lower surface of the mounting shell 1, a flow pipe 5 connected through one side of the water storage tank 4, a water pump 29 connected through the middle of the flow pipe 5, a spray pipe 6 connected through one end of the flow pipe 5, a spray head 7 connected through the lower surface of the spray pipe 6, a return pipe 8 connected through the other side of the water storage tank 4, one end of the return pipe 8 connected through one side of the mounting shell 1, a filter plate 9 fixedly connected inside the mounting shell 1, a backwashing mechanism provided on one side of the water storage tank 4, the spray head 7 is used to form water mist, the return pipe 8 facilitates the return of water accumulated inside the mounting shell 1 to the inside of the water storage tank 4, and the filter plate 9 is used to filter impurities in the gas.

[0032] As attached Figure 2 As shown, the backwashing mechanism includes a connecting pipe 10, which is connected to one side of the water storage tank 4. A booster pump 11 is connected to the middle of the connecting pipe 10, and a folded pipe 12 is connected to one end of the connecting pipe 10. The folded pipe 12 can extend as it moves with the water outlet pipe 13.

[0033] As attached Figure 5As shown, one end of the folded tube 12 is connected to the water outlet pipe 13. The folded tube 12 passes through one side of the mounting shell 1. Multiple nozzles 14 are connected through the upper surface of the water outlet pipe 13. A fixed shell 15 is fixedly connected to one side of the mounting shell 1. A first stepper motor 16 is fixedly installed on the other side of the mounting shell 1. A bidirectional lead screw 17 is fixedly connected to the output end of the first stepper motor 16. Two connecting blocks 18 are connected to the external threads of the bidirectional lead screw 17. A connecting rod 19 is hinged to one side of the connecting block 18. One end of the two connecting rods 19 is hinged to one side of the water outlet pipe 13. The nozzles 14 are used to spray high-pressure water. The external threads of the bidirectional lead screw 17 are set to opposite directions. The connecting rods 19 facilitate the support of the water outlet pipe 13.

[0034] As attached Figure 3 As shown, a discharge assembly is provided on one side of the mounting shell 1. The discharge assembly includes a second stepper motor 20, which is fixedly installed on one side of the mounting shell 1. A screw 21 is fixedly connected to the output end of the second stepper motor 20. A fixing rod 22 is fixedly connected inside the mounting shell 1 and is positioned above the filter plate 9. A scraper rod 23 is slidably connected to the outside of the fixing rod 22. The scraper rod 23 is threaded to the outside of the screw 21, and the lower surface of the scraper rod 23 is set as an inverted trapezoid to facilitate scraping. A discharge pipe 24 is connected through the other side of the mounting shell 1 and is positioned above the first stepper motor 16. The screw 21 facilitates the movement of the scraper rod 23, while the fixing rod 22 is used to limit the movement of the scraper rod 23.

[0035] As attached Figure 2 As shown, a pipe cap 25 is provided at one end of the discharge pipe 24, and a drain pipe 26 is connected through to the other side of the water storage tank 4. A water inlet pipe 27 is connected through to the upper surface of the water storage tank 4. A water-blocking cap 28 is threaded to one end of the water inlet pipe 27 and the drain pipe 26 respectively. The drain pipe 26 facilitates the discharge of water from the inside of the water storage tank 4 when the water flow needs to be replaced. The water inlet pipe 27 is used to inject water into the inside of the water storage tank 4.

[0036] Working principle: When in use, first fill the water tank 4 with water, then connect one end of the air inlet pipe 2 to the exhaust pipe of the exhaust gas collection device, and then turn on the water pump 29 to transfer the water in the water tank 4 to the spray pipe 6 through the flow pipe 5. The water mist is sprayed out through multiple spray nozzles 7 to capture impurities in the incoming exhaust gas. When the impurities in the exhaust gas settle with the water mist, they will be filtered by the filter plate 9. The impurities remain on the surface of the filter plate 9, while the water vapor flows to the bottom of the mounting shell 1. The gas that has been cleaned is discharged through the exhaust pipe 3. When a lot of water accumulates inside the mounting shell 1, the water will be sent back to the water tank 4 under the action of the return pipe 8 to complete the water circulation.

[0037] When the filter plate 9 becomes clogged, the booster pump 11 is turned on first. The water inside the water storage tank 4 is transported to the inside of the outlet pipe 13 under high pressure through the connecting pipe 10. Then, it is sprayed out by the nozzle 14 to form a high-pressure water flow for backwashing. Then, the first stepper motor 16 is turned on. When the double-acting screw 17 is rotated through the internal gearbox at its output end, it will drive the two external connecting blocks 18 to move closer to each other. When the connecting blocks 18 slide inside the fixed shell 15, they will drive the connecting rod 19 to rotate, which will support the outlet pipe 13. This will cause the outlet pipe 13 to drive multiple nozzles 14 to move below the filter plate 9, thereby thoroughly rinsing the filter plate 9.

[0038] When impurities in the filter are flushed onto the surface of the filter plate 9, the second stepper motor 20 is turned on. When the screw 21 is rotated through the internal gearbox at its output end, the scraper rod 23 slides outside the fixed rod 22, causing the scraper rod 23 to scrape the impurities on the surface of the filter plate 9, so that the impurities are scraped to the opening of the discharge pipe 24. Then the pipe cover 25 is opened to clean and discharge the impurities.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 recycled aluminum waste gas circulating spray dust removal device, comprising a mounting shell (1), characterized in that: An air inlet pipe (2) is connected through one side of the mounting shell (1), and an exhaust pipe (3) is connected through the other side of the mounting shell (1). A water storage tank (4) is fixedly connected to the lower surface of the mounting shell (1). A flow pipe (5) is connected through one side of the water storage tank (4). A water pump (29) is connected through the middle of the flow pipe (5). A spray pipe (6) is connected through one end of the flow pipe (5). A spray head (7) is connected through the lower surface of the spray pipe (6). A return pipe (8) is connected through the other side of the water storage tank (4). One end of the return pipe (8) is connected through one side of the mounting shell (1). A filter plate (9) is fixedly connected inside the mounting shell (1). A backwashing mechanism is provided on one side of the water storage tank (4).

2. The recycled aluminum waste gas circulating spray dust removal device according to claim 1, characterized in that: The backwashing mechanism includes a connecting pipe (10), which is connected to one side of the water storage tank (4). A booster pump (11) is connected to the middle of the connecting pipe (10). A folded pipe (12) is connected to one end of the connecting pipe (10). A water outlet pipe (13) is connected to one end of the folded pipe (12). The folded pipe (12) passes through one side of the mounting shell (1). Multiple nozzles (14) are connected to the upper surface of the water outlet pipe (13).

3. The recycled aluminum waste gas circulating spray dust removal device according to claim 1, characterized in that: A fixed housing (15) is fixedly connected to one side of the mounting housing (1), and a first stepper motor (16) is fixedly installed on the other side of the mounting housing (1). A bidirectional lead screw (17) is fixedly connected to the output end of the first stepper motor (16). Two connecting blocks (18) are connected to the external thread of the bidirectional lead screw (17). A connecting rod (19) is hinged to one side of the connecting block (18), and one end of the two connecting rods (19) is hinged to one side of the water outlet pipe (13).

4. The recycled aluminum waste gas circulating spray dust removal device according to claim 1, characterized in that: A material discharge assembly is provided on one side of the mounting shell (1). The material discharge assembly includes a second stepper motor (20), which is fixedly installed on one side of the mounting shell (1).

5. The recycled aluminum waste gas circulating spray dust removal device according to claim 4, characterized in that: The output end of the second stepper motor (20) is fixedly connected to a screw (21), and a fixing rod (22) is fixedly connected inside the mounting shell (1). The fixing rod (22) is positioned above the filter plate (9).

6. The recycled aluminum waste gas circulating spray dust removal device according to claim 5, characterized in that: The fixed rod (22) is slidably connected to the outside of the scraper rod (23), which is threaded to the outside of the screw rod (21). The other side of the mounting shell (1) is connected to the discharge pipe (24), which is located above the first stepper motor (16). One end of the discharge pipe (24) is provided with a pipe cap (25).

7. The recycled aluminum waste gas circulating spray dust removal device according to claim 1, characterized in that: A drain pipe (26) is connected through to the other side of the water storage tank (4), and an inlet pipe (27) is connected through to the upper surface of the water storage tank (4). A water-blocking cover (28) is threaded to one end of the inlet pipe (27) and the drain pipe (26).

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