Desulfurization, denitration and dust removal device

Abstract

The utility model relates to the technical field of desulfurization, denitrification and dust removal devices, in particular to a desulfurization, denitrification and dust removal device which comprises a treatment box, a filter plate, a water tank, a first spray head, a breather pipe, an air outlet pipe, a cleaning mechanism and a stirring mechanism, a desulfurization box is arranged on one side of the treatment box and filled with alkali liquor, and an air outlet is formed in the inner top wall of the desulfurization box; a dust removal cavity and a denitration cavity are formed in the treatment box, an air inlet pipe is arranged on the side wall of the dust removal cavity, the filter plate is fixedly arranged in the dust removal cavity, the water tank is formed in the inner bottom wall of the denitration cavity, a plurality of first spray heads are installed on the inner top wall of the denitration cavity, and a water inlet pipe is arranged on the treatment box in a penetrating mode and communicates with the first spray heads. The ventilation pipe is fixedly arranged on the inner top wall of the dust removal cavity, penetrates through the water tank and extends into the denitration cavity, and through the technical scheme, the problem that the treatment efficiency is affected due to the fact that the filter plate needs to be frequently cleaned in the flue gas treatment process in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of desulfurization, denitrification and dust removal devices, and specifically to a desulfurization, denitrification and dust removal device. Background Technology

[0002] The large amount of flue gas produced by coal combustion, including sulfur, chlorine, and nitrogen oxides, are the main sources of air pollution. In addition to damaging the ecological environment, it can also form photochemical smog, which harms human health. Coal is my country's main energy source, and the associated sulfur dioxide and acid rain pollution problems are even more prominent. Therefore, how to deal with dust, sulfur oxides, and nitrogen oxides generated by industrial coal has always been a key issue in my country's environmental governance.

[0003] A search revealed that patent CN107138005A discloses a desulfurization and denitrification dust collector, comprising an air inlet at the top and an air outlet on the left side of the dust collector. A spray capture chamber is located below the air inlet, containing spray nozzles and a flushing nozzle. A filtration reaction chamber is located below the spray capture chamber, containing a honeycomb ceramic filter plate inclined to the center line of the air inlet. A cyclone chamber is located on the lower left side of the filtration reaction chamber, containing a spiral baffle. A vortex separation chamber is located on the left side of the cyclone chamber, and a dehydration chamber is located on the left side of the vortex separation chamber.

[0004] The aforementioned patent primarily uses filtration in its processing. However, after processing, the filter layer needs to be frequently removed and cleaned to ensure the treatment effect. This cleaning process is quite cumbersome, thus affecting the efficiency of flue gas treatment. Utility Model Content

[0005] This invention proposes a desulfurization, denitrification, and dust removal device, which solves the problem in the prior art that the frequent cleaning of filter plates is required during flue gas treatment, thus affecting the treatment efficiency.

[0006] The technical solution of this utility model is as follows: a desulfurization, denitrification and dust removal device, including a treatment box, a filter plate, a water tank, a first nozzle, a ventilation pipe, an exhaust pipe, a cleaning mechanism and a stirring mechanism;

[0007] A desulfurization tank is located on one side of the treatment tank. The desulfurization tank is filled with alkaline solution. An air outlet is provided on the inner top wall of the desulfurization tank. A dust removal cavity and a denitrification cavity are provided inside the treatment tank. An air inlet pipe is provided on the side wall of the dust removal cavity. The filter plate is fixedly installed in the dust removal cavity. A water tank is located on the inner bottom wall of the denitrification cavity. Multiple first nozzles are installed on the inner top wall of the denitrification cavity. A water inlet pipe is provided through the treatment tank and communicates with the first nozzles. A vent pipe is fixedly installed on the inner top wall of the dust removal cavity and extends through the water tank into the denitrification cavity. An air outlet pipe is provided between the inner bottom wall of the desulfurization tank and the side wall of the denitrification cavity. A cleaning mechanism is located in the dust removal cavity for cleaning the filter plate. A stirring mechanism is located in the desulfurization tank for stirring the alkaline solution.

[0008] Preferably, a protective cover is provided on one side of the vent pipe, and multiple fixing rods are fixedly provided between the protective cover and the vent pipe.

[0009] Furthermore, the cleaning mechanism includes:

[0010] A supporting shell is disposed inside the dust removal cavity, and a plurality of fixed columns are fixedly disposed between the supporting shell and the side wall of the dust removal cavity;

[0011] A support column is rotatably mounted on the inner bottom wall of the support housing and extends through the inner top wall of the support housing into the dust removal cavity.

[0012] The cleaning column is provided with multiple cleaning columns rotatably mounted on the side wall of the support column, and the side wall of the cleaning column is evenly distributed with cleaning bristles.

[0013] A first rotating mechanism is disposed on the support housing and is used to drive the support column to rotate;

[0014] The second rotating mechanism is disposed on the support column and is used to drive the cleaning column to rotate.

[0015] Furthermore, the first rotating mechanism includes:

[0016] A first toothed ring is fixedly mounted on the support column;

[0017] The first gear is rotatably disposed within the support housing and meshes with the first gear ring.

[0018] The first motor is fixedly mounted on the support housing, and its output end is fixedly connected to the first gear.

[0019] Furthermore, the second rotating mechanism includes:

[0020] A first cavity is formed inside the support column. A first bevel gear is rotatably provided on the side wall of the first cavity near the cleaning column. The cleaning column passes through the side wall of the first cavity and is fixedly connected to the first bevel gear.

[0021] The second bevel gear is rotatably mounted on the inner bottom wall of the first cavity, and the second bevel gear meshes with the first bevel gear;

[0022] A fixing tube is provided, which passes through and is fixedly disposed between the inner bottom wall of the support housing and the second bevel gear.

[0023] Based on the above scheme, a second cavity is provided on the cleaning column, and multiple second nozzles are installed on the cleaning column. The second nozzles are connected to the second cavity. A first connecting port is provided on the first bevel gear, and the first connecting port is connected to both the first cavity and the second cavity. A rotary joint is installed on the support housing, and the rotary joint is connected to the fixed pipe. A water pump is fixedly installed on the side wall of the treatment box. The input end of the water pump is connected to the water tank, and the output end of the water pump is connected to the rotary joint. A waste discharge port is provided on the inner bottom wall of the treatment box, and a waste discharge control valve is built into the waste discharge port.

[0024] Based on the above scheme, the stirring mechanism includes:

[0025] A stirring column is rotatably disposed inside the desulfurization box, and multiple stirring rods are fixedly disposed on the side wall of the stirring column;

[0026] The second motor is fixedly mounted on the desulfurization box, and its output end is fixedly connected to the stirring column.

[0027] The working principle and beneficial effects of this utility model are as follows:

[0028] 1. In this utility model, the filter plate facilitates the filtration of dust in the flue gas, thereby making it easier to clean the dust.

[0029] 2. In this utility model, the arrangement of the first nozzle, the water inlet pipe and the water tank facilitates the injection of ammonia water into the first nozzle through the water inlet pipe. Then, ammonia water can be injected into the denitrification cavity through the first nozzle, thereby reducing the nitrates in the flue gas to ammonia and water, which facilitates the cleaning of the nitrates.

[0030] 3. In this utility model, by setting up a desulfurization box and an exhaust pipe, flue gas can be introduced into the alkaline solution in the desulfurization box through the exhaust pipe, so that the sulfides in the flue gas can be treated by the alkaline solution, thereby facilitating the cleaning of sulfides;

[0031] 4. In this utility model, the cleaning mechanism facilitates the rotation of the first gear by the operation of the first motor, and the rotation of the support column by the meshing of the first gear and the first gear ring. This allows the cleaning column to move around the support column. During the rotation of the support column, the first bevel gear can move around the second bevel gear. This allows the cleaning column to rotate by the meshing of the first bevel gear and the cleaning brush to clean the filter plate.

[0032] 5. In this utility model, by setting up a water pump and a second nozzle, ammonia water can fall into the water tank for collection after the flue gas is denitrified. At the same time, the operation of the water pump can blow ammonia water into the first cavity and the second cavity, and then spray ammonia water onto the surface of the filter plate through the second nozzle, thereby improving the cleaning efficiency of the filter plate.

[0033] 6. In this utility model, the arrangement of the treatment box, filter plate, water tank, first nozzle, air pipe, air outlet pipe, cleaning mechanism and stirring mechanism facilitates the cleaning of the filter plate by the cleaning brush during the flue gas treatment process. At the same time, ammonia water can be sprayed onto the surface of the filter plate by the second nozzle, thereby further improving the cleaning effect. This solves the problem in the prior art that the filter plate needs to be cleaned frequently during the flue gas treatment process, which affects the treatment efficiency. Attached Figure Description

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0035] Figure 1 This is a schematic diagram of the structure of this utility model;

[0036] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0037] Figure 3 This is a cross-sectional view of the processing box of this utility model;

[0038] Figure 4 This is a cross-sectional view of the cleaning mechanism of this utility model.

[0039] In the diagram: 1. Processing box; 2. Desulfurization box; 3. Dust removal cavity; 4. Denitrification cavity; 5. Air inlet pipe; 6. Filter plate; 7. Water tank; 8. First nozzle; 9. Water inlet pipe; 10. Ventilation pipe; 11. Air outlet pipe; 12. Protective cover; 13. Support shell; 14. Fixed column; 15. Support column; 16. Cleaning column; 17. First gear ring; 18. First gear; 19. First motor; 20. First bevel gear; 21. Second bevel gear; 22. Fixed pipe; 23. Second nozzle; 24. Rotary joint; 25. Water pump; 26. Stirring column; 27. Second motor. Detailed Implementation

[0040] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0041] like Figures 1-4 As shown, this embodiment proposes a desulfurization, denitrification, and dust removal device, including a treatment box 1, a filter plate 6, a water tank 7, a first nozzle 8, an air pipe 10, an air outlet pipe 11, a cleaning mechanism, and a stirring mechanism. A desulfurization box 2 is provided on one side of the treatment box 1. The desulfurization box 2 is filled with alkaline solution, and an air outlet is provided on the inner top wall of the desulfurization box 2. A dust removal cavity 3 and a denitrification cavity 4 are provided inside the treatment box 1. An air inlet pipe 5 is provided on the side wall of the dust removal cavity 3. The filter plate 6 is fixedly installed in the dust removal cavity 3, and the water tank 7 is located in the denitrification cavity 4. On the inner bottom wall and the inner top wall of the denitrification cavity 4, multiple first nozzles 8 are installed. A water inlet pipe 9 is installed through the treatment box 1 and is connected to the first nozzles 8. A vent pipe 10 is fixedly installed on the inner top wall of the dust removal cavity 3 and extends into the denitrification cavity 4 through the water tank 7. An exhaust pipe 11 is installed between the inner bottom wall of the desulfurization box 2 and the side wall of the denitrification cavity 4. A cleaning mechanism is installed in the dust removal cavity 3 to clean the filter plate 6. A stirring mechanism is installed in the desulfurization box 2 to stir the alkaline solution.

[0042] Reference Figure 2 and Figure 3 A protective cover 12 is provided on one side of the vent pipe 10. Multiple fixing rods are fixed between the protective cover 12 and the vent pipe 10, so that the vent pipe 10 can be blocked by the protective cover 12, thereby preventing ammonia water from falling into the vent pipe 10.

[0043] Reference Figures 2-4The cleaning mechanism includes a support housing 13, support columns 15, cleaning columns 16, a first rotating mechanism, and a second rotating mechanism. The support housing 13 is disposed within the dust removal cavity 3. Multiple fixed columns 14 are fixedly disposed between the support housing 13 and the side wall of the dust removal cavity 3. The support columns 15 are rotatably disposed on the inner bottom wall of the support housing 13 and extend through the inner top wall of the support housing 13 into the dust removal cavity 3. Multiple cleaning columns 16 are rotatably disposed on the side wall of the support columns 15, and cleaning bristles are evenly distributed on the side wall of each cleaning column 16. The first rotating mechanism… A first rotating mechanism is mounted on the support housing 13 to drive the support column 15 to rotate. A second rotating mechanism is mounted on the support column 15 to drive the cleaning column 16 to rotate. The first rotating mechanism includes a first gear ring 17, a first gear 18, and a first motor 19. The first gear ring 17 is fixedly mounted on the support column 15. The first gear 18 is rotatably mounted inside the support housing 13 and meshes with the first gear ring 17. The first motor 19 is fixedly mounted on the support housing 13, and the output end of the first motor 19 is connected to the first gear 18. The fixed connection, the second rotating mechanism includes a first cavity, a second bevel gear 21, and a fixed tube 22. The first cavity is opened in the support column 15. The first bevel gear 20 is rotatably installed on the side wall of the first cavity near the cleaning column 16. The cleaning column 16 passes through the side wall of the first cavity and is fixedly connected to the first bevel gear 20. The second bevel gear 21 is rotatably installed on the inner bottom wall of the first cavity and meshes with the first bevel gear 20. The fixed tube 22 passes through and is fixedly installed between the inner bottom wall of the support housing 13 and the second bevel gear 21. The operation of the first motor 19 drives the first gear 18 to rotate. At the same time, the meshing of the first gear 18 with the first gear ring 17 drives the support column 15 to rotate, thereby driving the cleaning column 16 to move around the support column 15. During the rotation of the support column 15, the first bevel gear 20 can be driven to move around the second bevel gear 21. Thus, the meshing of the first bevel gear 20 drives the cleaning column 16 to rotate, thereby facilitating the cleaning of the filter plate 6 by the cleaning brush bristles.

[0044] Reference Figure 4The cleaning column 16 has a second cavity, and multiple second nozzles 23 are installed on the cleaning column 16. The second nozzles 23 are connected to the second cavity. The first bevel gear 20 has a first connecting port, which is connected to both the first cavity and the second cavity. The support housing 13 is equipped with a rotary joint 24, which is connected to the fixed pipe 22. A water pump 25 is fixedly installed on the side wall of the treatment box 1. The input end of the water pump 25 is connected to the water tank 7, and the output end of the water pump 25 is connected to the rotary joint 24. The bottom wall of the treatment box 1 has a discharge port, which has a built-in discharge control valve. After the ammonia water is denitrified in the flue gas, it can fall into the water tank 7 for collection. At the same time, the operation of the water pump 25 can blow the ammonia water into the first cavity and the second cavity, and then spray the ammonia water onto the surface of the filter plate 6 through the second nozzles 23, thereby improving the cleaning efficiency of the filter plate 6.

[0045] Reference Figure 1 and Figure 2 The stirring mechanism includes a stirring column 26 and a second motor 27. The stirring column 26 is rotatably installed inside the desulfurization box 2. Multiple stirring rods are fixedly installed on the side wall of the stirring column 26. The second motor 27 is fixedly installed on the desulfurization box 2. The output end of the second motor 27 is fixedly connected to the stirring column 26. The stirring column 26 can be driven to rotate by the operation of the second motor 27, so that the alkaline solution can be stirred by the stirring rods, thereby improving the treatment efficiency of the alkaline solution for sulfides.

[0046] In this embodiment, during use, the operator introduces flue gas into the dust removal cavity 3 through the air inlet pipe 5. The flue gas undergoes dust removal treatment by passing through the filter plate 6. Then, the flue gas enters the denitrification cavity 4 through the air inlet pipe 10. Simultaneously, ammonia water is introduced through the water inlet pipe 9, allowing it to be sprayed through the first nozzle 8. This ammonia water reduces nitrates. Afterward, the flue gas enters the desulfurization box 2 through the air outlet pipe 11, where sulfides are treated by alkaline solution. Simultaneously, the operator controls the second motor 27, which drives the stirring column 26 to rotate, thus stirring the alkaline solution and improving its efficiency in treating sulfides. During the flue gas treatment process, the operation of the first motor 19 can also be used to drive the first motor 19 to rotate the second motor 27. The first gear 18 rotates, and the meshing of the first gear 18 with the first gear ring 17 drives the support column 15 to rotate, thereby driving the cleaning column 16 to move around the support column 15. During the rotation of the support column 15, the first bevel gear 20 moves around the second bevel gear 21, and the meshing of the first bevel gear 20 drives the cleaning column 16 to rotate, thus facilitating the cleaning of the filter plate 6 by the cleaning brush bristles. At the same time, after the ammonia water is denitrified from the flue gas, it can fall into the water tank 7 for collection. The operation of the water pump 25 can blow the ammonia water into the first cavity and the second cavity, and then spray the ammonia water onto the surface of the filter plate 6 through the second nozzle 23, thereby improving the cleaning efficiency of the filter plate 6.

[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A desulfurization, denitrification, and dust removal device, characterized in that, include: The treatment box (1) is provided with a desulfurization box (2) on one side. The desulfurization box (2) is filled with alkaline solution. An air outlet is provided on the inner top wall of the desulfurization box (2). A dust removal cavity (3) and a denitrification cavity (4) are provided in the treatment box (1). An air inlet pipe (5) is provided on the side wall of the dust removal cavity (3). The filter plate (6) is fixedly installed inside the dust removal cavity (3); Water tank (7), the water tank (7) is opened on the inner bottom wall of the denitrification cavity (4); The first nozzle (8) is installed on the inner top wall of the denitrification cavity (4). A water inlet pipe (9) is provided through the treatment box (1). The water inlet pipe (9) is connected to the first nozzle (8). Ventilation pipe (10), the ventilation pipe (10) is fixedly installed on the inner top wall of the dust removal cavity (3), the ventilation pipe (10) passes through the water tank (7) and extends into the denitrification cavity (4); An exhaust pipe (11) is provided between the inner bottom wall of the desulfurization box (2) and the side wall of the denitrification cavity (4). A cleaning mechanism is provided inside the dust removal cavity (3) for cleaning the filter plate (6); A stirring mechanism is installed inside the desulfurization tank (2) for stirring the alkaline solution.

2. The desulfurization, denitrification, and dust removal device according to claim 1, characterized in that, A protective cover (12) is provided on one side of the vent pipe (10), and multiple fixing rods are fixedly provided between the protective cover (12) and the vent pipe (10).

3. The desulfurization, denitrification, and dust removal device according to claim 2, characterized in that, The cleaning facility includes: A supporting shell (13) is provided inside the dust removal cavity (3), and a plurality of fixed columns (14) are fixedly provided between the supporting shell (13) and the side wall of the dust removal cavity (3). Support column (15), the support column (15) is rotatably mounted on the inner bottom wall of the support housing (13), the support column (15) extends through the inner top wall of the support housing (13) into the dust removal cavity (3); Cleaning column (16), multiple cleaning columns (16) are rotatably arranged on the side wall of the support column (15), and cleaning bristles are evenly distributed on the side wall of the cleaning column (16); A first rotating mechanism is disposed on the support housing (13) and is used to drive the support column (15) to rotate; The second rotating mechanism is disposed on the support column (15) and is used to drive the cleaning column (16) to rotate.

4. The desulfurization, denitrification, and dust removal device according to claim 3, characterized in that, The first rotating mechanism includes: The first toothed ring (17) is fixedly mounted on the support column (15); The first gear (18) is rotatably disposed inside the support housing (13) and meshes with the first gear ring (17); The first motor (19) is fixedly mounted on the support housing (13), and the output end of the first motor (19) is fixedly connected to the first gear (18).

5. The desulfurization, denitrification, and dust removal device according to claim 4, characterized in that, The second rotating mechanism includes: The first cavity is opened inside the support column (15). A first bevel gear (20) is rotatably provided on the side wall of the first cavity near the cleaning column (16). The cleaning column (16) passes through the side wall of the first cavity and is fixedly connected to the first bevel gear (20). The second bevel gear (21) is rotatably mounted on the inner bottom wall of the first cavity, and the second bevel gear (21) meshes with the first bevel gear (20); A fixed tube (22) is inserted through and fixedly disposed between the inner bottom wall of the support housing (13) and the second bevel gear (21).

6. The desulfurization, denitrification, and dust removal device according to claim 5, characterized in that, The cleaning column (16) has a second cavity, and multiple second nozzles (23) are installed on the cleaning column (16). The second nozzles (23) are connected to the second cavity. The first bevel gear (20) has a first connecting port, which is connected to the first cavity and the second cavity respectively. The support housing (13) is equipped with a rotary joint (24), which is connected to the fixed pipe (22). A water pump (25) is fixedly installed on the side wall of the treatment box (1). The input end of the water pump (25) is connected to the water tank (7), and the output end of the water pump (25) is connected to the rotary joint (24). The inner bottom wall of the treatment box (1) has a discharge port, which has a built-in discharge control valve.

7. The desulfurization, denitrification, and dust removal device according to claim 6, characterized in that, The stirring mechanism includes: A stirring column (26) is rotatably disposed inside the desulfurization box (2), and multiple stirring rods are fixedly disposed on the side wall of the stirring column (26); The second motor (27) is fixedly installed on the desulfurization box (2), and the output end of the second motor (27) is fixedly connected to the stirring column (26).

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