Coke oven flue gas desulfurization and denitrification device

Abstract

The utility model relates to the technical field of desulfurization and denitrification, in particular to a coke oven flue gas desulfurization and denitrification device which comprises a tank body, a filter screen is fixedly mounted on the inner wall of the tank body, a double-shaft motor is fixedly mounted on the outer surface of the tank body, and one output end of the double-shaft motor is fixedly connected with a first rotating shaft. The spraying device has the advantages that through the matched arrangement of the double-shaft motor, the first rotating shaft, the first bevel gear, the second bevel gear, the second rotating shaft and the cleaning brush, the filter screen can be cleaned while spraying operation is carried out, so that the filter screen cleaning operation is relatively simple and convenient; and through cooperative arrangement of a first belt wheel, a second belt wheel, a third rotating shaft, a third bevel gear, a fourth bevel gear, a water inlet pipe, a flow dividing pipe, a spray head, a sealing seat and a liquid adding structure, the spray head can rotate and perform spraying operation, so that flue gas is in full contact with a reactant, and the flue gas desulfurization and denitrification effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization and denitration, in particular to a coke oven flue gas desulfurization and denitration device. Background Art

[0002] Waste gas purification mainly refers to the treatment of industrial waste gas such as dust particles, flue gas, odorous gases, and toxic and harmful gases generated in industrial places. Common waste gas purification includes factory dust waste gas purification, workshop dust waste gas purification, organic waste gas purification, waste gas odor purification, acid and alkali waste gas purification, chemical waste gas purification, etc. Coke ovens will produce a lot of smoke during operation, and the dust, sulfur and nitrogen oxides of the smoke are all substances that pollute the atmosphere. Therefore, when the smoke is discharged, the smoke needs to be desulfurized and denitrated to ensure that the discharged smoke is relatively clean.

[0003] A patent document with publication number CN220328317U discloses a dust removal, desulfurization and denitrification device for boiler flue gas. The dust removal, desulfurization and denitrification device for boiler flue gas utilizes a filter to filter dust in the flue gas, thereby preventing dust from being discharged into the atmosphere. However, after long-term use, dust will accumulate on the filter. In severe cases, the filter may even be clogged, thereby affecting the normal filtering operation of the filter. Cleaning the filter requires opening the tank body, making the tank cleaning operation more troublesome. Therefore, a coke oven flue gas desulfurization and denitrification device is needed to solve the above problems. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] Therefore, one purpose of the utility model is to provide a coke oven flue gas desulfurization and denitrification device to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a coke oven flue gas desulfurization and denitrification device, including a tank body, a filter screen is fixedly installed on the inner wall of the tank body, a double-shaft motor is fixedly installed on the outer surface of the tank body, an output end of the double-shaft motor is fixedly connected to a first rotating shaft, one end of the first rotating shaft is fixedly connected to a first bevel gear, the outer surface of the first bevel gear is meshed with a second bevel gear, the inner wall of the keyway of the second bevel gear is fixedly connected to a second rotating shaft, one end of the second rotating shaft is fixedly connected to a cleaning brush, and one ... and the second bevel gear is meshed with a second bevel gear. The end is fixedly connected with a first pulley, the first pulley is connected with a second pulley through a belt drive, the inner wall of the keyway of the second pulley is fixedly connected with a third rotating shaft, one end of the third rotating shaft is fixedly connected with a third bevel gear, the outer surface of the third bevel gear is meshed with a fourth bevel gear, the inner wall of the keyway of the fourth bevel gear is fixedly connected with a water inlet pipe, the bottom end of the water inlet pipe is fixedly connected with a shunt pipe, a plurality of nozzles are fixedly installed on the outer surface of the shunt pipe, a sealing seat with a hollow structure inside is fixedly installed on the top side of the tank body, and a liquid adding structure is connected to the sealing seat.

[0007] Preferably, any of the above schemes is that an air inlet pipe is fixedly connected to the outer surface of the tank body, an exhaust pipe is fixedly connected to the top side of the tank body, and the air inlet pipe is located below the filter screen.

[0008] Preferably, any of the above schemes comprises a water adding pipe, a water delivery pipe, a water pump and a water tank, one side of the sealing seat is fixedly connected to the water adding pipe, one end of the water adding pipe is fixedly connected to the water delivery pipe, one end of the water delivery pipe away from the water adding pipe is fixedly connected to the water pump, and the water inlet of the water pump is fixedly connected to the water tank via a pipe.

[0009] Preferably, any of the above schemes is that a sealing hole is opened inside the sealing seat, a part of the water inlet pipe is located inside the sealing hole, the top side of the water inlet pipe is in contact with the bottom side of the water filling pipe, and a sealing ring is sleeved on the outer surface of the top end of the water inlet pipe and the outer surface of the bottom end of the water filling pipe, and the sealing ring is adapted to the size of the sealing hole.

[0010] Preferably, any of the above schemes is that a stabilizing plate is fixedly connected to the top side of the tank body, the third rotating shaft passes through the stabilizing plate, the third rotating shaft is rotatably connected to the stabilizing plate via a bearing, the third rotating shaft passes through one side of the sealing seat and extends to the interior of the sealing seat, and the third rotating shaft is rotatably connected to the sealing seat via a bearing.

[0011] Preferably, any of the above schemes has a support rod fixedly connected to the inner wall of the tank body, one end of the support rod is fixedly connected to a protective box, the first bevel gear and the second bevel gear are both located inside the protective box, the first rotating shaft is rotatably connected to the protective box via a bearing, and the second rotating shaft is rotatably connected to the protective box via a bearing.

[0012] Preferably, any of the above schemes is that the cleaning brush is located below the filter screen, the bristles of the cleaning brush are in contact with the filter screen, and the center position of the second rotating shaft and the center position of the filter screen are on the same vertical plane.

[0013] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0014] Through the coordinated arrangement of the dual-axis motor, the first rotating shaft, the first bevel gear, the second bevel gear, the second rotating shaft and the cleaning brush, the filter can be cleaned while the spraying operation is being performed, making the operation of cleaning the filter relatively simple, and through the coordinated arrangement of the first pulley, the second pulley, the third rotating shaft, the third bevel gear, the fourth bevel gear, the water inlet pipe, the diverter pipe, the nozzle, the sealing seat and the liquid adding structure, the nozzle can be rotated and the spraying operation can be performed, so that the flue gas and the reactant are fully in contact, so that the effect of desulfurization and denitrification of the flue gas is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0019] In the figure: 1-tank body, 2-filter, 3-dual-axis motor, 4-first rotating shaft, 5-first bevel gear, 6-second bevel gear, 7-second rotating shaft, 8-cleaning brush, 9-first pulley, 10-second pulley, 11-third rotating shaft, 12-third bevel gear, 13-fourth bevel gear, 14-water inlet pipe, 15-diverter pipe, 16-nozzle, 17-sealing seat, 18-liquid adding structure, 1801-water adding pipe, 1802-water delivery pipe, 1803-water pump, 1804-water pump, 19-intake pipe, 20-exhaust pipe, 21-sealing ring, 22-stabilizing plate, 23-support rod, 24-protective box. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0021] like Figures 1 to 4As shown, a coke oven flue gas desulfurization and denitrification device comprises a tank body 1, a filter screen 2 is fixedly installed on the inner wall of the tank body 1, a double-shaft motor 3 is fixedly installed on the outer surface of the tank body 1, one output end of the double-shaft motor 3 is fixedly connected to a first rotating shaft 4, one end of the first rotating shaft 4 is fixedly connected to a first bevel gear 5, the outer surface of the first bevel gear 5 is meshed with a second bevel gear 6, the inner wall of the keyway of the second bevel gear 6 is fixedly connected to a second rotating shaft 7, one end of the second rotating shaft 7 is fixedly connected to a cleaning brush 8, and one end of the double-shaft motor 3 is fixedly connected to a first rotating shaft 4. The output end is fixedly connected with a first pulley 9, the first pulley 9 is connected with a second pulley 10 through a belt transmission, the inner wall of the keyway of the second pulley 10 is fixedly connected with a third rotating shaft 11, one end of the third rotating shaft 11 is fixedly connected with a third bevel gear 12, the outer surface of the third bevel gear 12 is meshed with a fourth bevel gear 13, the inner wall of the keyway of the fourth bevel gear 13 is fixedly connected with a water inlet pipe 14, the bottom end of the water inlet pipe 14 is fixedly connected with a shunt pipe 15, and the outer surface of the shunt pipe 15 is fixedly installed with a plurality of nozzles 16, the tank A sealing seat 17 with a hollow structure inside is fixedly installed on the top side of the body 1, and a liquid adding structure 18 is connected to the sealing seat 17. When the coke oven flue gas is desulfurized and denitrated, the desulfurization and denitration agent is first added to the inside of the water inlet pipe 14 through the liquid adding structure 18, and the desulfurization and denitration agent will enter the inside of the shunt pipe 15, and then the desulfurization and denitration agent will be sprayed out through a plurality of nozzles 16, and the double-axis motor 3 is started at this time, and the first rotating shaft 4 will rotate at this time, and the first bevel gear 5 and the second bevel gear 6 will drive the second bevel gear 6 to rotate. The second rotating shaft 7 drives the cleaning brush 8 to rotate. As the cleaning brush 8 rotates, the bristles of the cleaning brush 8 will clean the filter 2. As the dual-axis motor 3 is started, the third rotating shaft 11 is rotated under the transmission action of the first pulley 9, the second pulley 10 and the belt. At this time, the water inlet pipe 14 drives the diversion pipe 15 to rotate under the transmission action of the third bevel gear 12 and the fourth bevel gear 13, so that the nozzle 16 rotates and sprays the desulfurization and denitrification agent into the interior of the tank body 1, thereby desulfurizing and denitrifying the flue gas.

[0022] As an optional technical solution of the present utility model, an air intake pipe 19 is fixedly connected to the outer surface of the tank body 1, and an exhaust pipe 20 is fixedly connected to the top side of the tank body 1. The air intake pipe 19 is located below the filter 2. Flue gas is added to the interior of the tank body 1 through the air intake pipe 19, and smoke dust on the flue gas is filtered through the filter 2. The filtered flue gas is desulfurized and denitrified by a desulfurization and denitrification agent, and the flue gas after desulfurization and denitrification is discharged through the exhaust pipe 20.

[0023] As an optional technical solution of the utility model, the liquid adding structure 18 includes a water adding pipe 1801, a water delivery pipe 1802, a water pump 1803 and a water tank 1804. One side of the sealing seat 17 is fixedly connected to the water adding pipe 1801, one end of the water adding pipe 1801 is fixedly connected to the water delivery pipe 1802, the end of the water delivery pipe 1802 away from the water adding pipe 1801 is fixedly connected to the water pump 1803, and the water inlet of the water pump 1803 is fixedly connected to the water tank 1804 through a pipeline. The interior of the water tank 1804 is provided with a desulfurization and denitrification agent. By starting the water pump 1803, the desulfurization and denitrification agent located inside the water tank 1804 can be transported to the interior of the water adding pipe 1801 through the water delivery pipe and the pipeline, and then the desulfurization and denitrification agent is added to the interior of the water inlet pipe 14 through the water adding pipe 1801.

[0024] As an optional technical solution of the present invention, a sealing hole is opened inside the sealing seat 17, and a part of the water inlet pipe 14 is located inside the sealing hole. The top side of the water inlet pipe 14 contacts the bottom side of the water adding pipe 1801, and the outer surface of the top end of the water inlet pipe 14 and the outer surface of the bottom end of the water adding pipe 1801 are sleeved with a sealing ring 21. The sealing ring 21 is adapted to the size of the sealing hole. The sealing ring 21 makes the top ends of the water inlet pipe 14 and the water adding pipe 1801 tightly connected, so that the water inside the water adding pipe 1801 can be smoothly added to the inside of the water inlet pipe 14.

[0025] As an optional technical solution of the present utility model, a stabilizing plate 22 is fixedly connected to the top side of the tank body 1, and the third rotating shaft 11 passes through the stabilizing plate 22. The third rotating shaft 11 is rotatably connected to the stabilizing plate 22 through a bearing. The third rotating shaft 11 passes through one side of the sealing seat 17 and extends to the interior of the sealing seat 17. The third rotating shaft 11 is rotatably connected to the sealing seat 17 through a bearing, which supports the third rotating shaft 11, thereby ensuring the stability of the third rotating shaft 11 during rotation.

[0026] As an optional technical solution of the utility model, a support rod 23 is fixedly connected to the inner wall of the tank body 1, and a protective box 24 is fixedly connected to one end of the support rod 23. The first bevel gear 5 and the second bevel gear 6 are both located inside the protective box 24. The first rotating shaft 4 is rotatably connected to the protective box 24 through a bearing, and the second rotating shaft 7 is rotatably connected to the protective box 24 through a bearing, which supports the first rotating shaft 4 and the second rotating shaft 7, thereby ensuring the stability of the first rotating shaft 4 and the second rotating shaft 7 during rotation. The protective box 24 can also avoid the influence of the desulfurization and denitrification agent on the first bevel gear 5 and the second bevel gear 6, thereby ensuring the service life of the first bevel gear 5 and the second bevel gear 6.

[0027] As an optional technical solution of the utility model, the cleaning brush 8 is located below the filter 2, the bristles of the cleaning brush 8 are in contact with the filter 2, and the center position of the second rotating shaft 7 and the center position of the filter 2 are on the same vertical plane, so that the cleaning brush 8 can better and more comprehensively clean the filter 2.

[0028] A coke oven flue gas desulfurization and denitrification device, the working principle is as follows:

[0029] Starting the water pump 1803 can transport the desulfurization and denitrification agent located in the water tank 1804 to the inside of the water supply pipe 1801 through the water supply pipe and the pipeline, and then add the desulfurization and denitrification agent to the inside of the water inlet pipe 14 through the water supply pipe 1801. At this time, the desulfurization and denitrification agent will enter the inside of the diversion pipe 15, and then be sprayed out through a plurality of nozzles 16 to remove the flue gas from the diversion pipe 15. Starting the dual-axis motor 3, the first rotating shaft 4 will rotate at this time, and the second rotating shaft 7 will drive the cleaning brush 8 to rotate under the transmission action of the first bevel gear 5 and the second bevel gear 6. As the cleaning brush 8 rotates, the cleaning brush 8 The bristles will clean the filter 2, and with the start-up of the dual-axis motor 3, the third rotating shaft 11 is rotated under the transmission action of the first pulley 9, the second pulley 10 and the belt. At this time, the water inlet pipe 14 drives the diversion pipe 15 to rotate under the transmission action of the third bevel gear 12 and the fourth bevel gear 13, so that the nozzle 16 rotates and sprays the desulfurization and denitrification agent into the interior of the tank body 1, and the flue gas is added to the interior of the tank body 1 through the air inlet pipe 19, and the smoke on the smoke is filtered through the filter 2. At this time, the filtered smoke is desulfurized and denitrified by the sprayed desulfurization and denitrification agent.

[0030] To sum up, the coke oven flue gas desulfurization and denitrification device, through the coordinated arrangement of the dual-axis motor 3, the first rotating shaft 4, the first bevel gear 5, the second bevel gear 6, the second rotating shaft 7 and the cleaning brush 8, can clean the filter 2 while performing the spraying operation, so that the operation of cleaning the filter 2 is relatively simple, and through the coordinated arrangement with the first pulley 9, the second pulley 10, the third rotating shaft 11, the third bevel gear 12, the fourth bevel gear 13, the water inlet pipe 14, the diversion pipe 15, the nozzle 16, the sealing seat 17 and the liquid adding structure 18, the nozzle 16 can be rotated and the spraying operation can be performed, so that the flue gas and the reactant are fully in contact, so that the effect of desulfurization and denitrification of the flue gas is better.

Claims

1. A coke oven flue gas desulfurization and denitrification device, characterized in that: The invention comprises a tank body (1), a filter screen (2) is fixedly installed on the inner wall of the tank body (1), a double-shaft motor (3) is fixedly installed on the outer surface of the tank body (1), one output end of the double-shaft motor (3) is fixedly connected to a first rotating shaft (4), one end of the first rotating shaft (4) is fixedly connected to a first bevel gear (5), the outer surface of the first bevel gear (5) is meshed with a second bevel gear (6), the inner wall of the keyway of the second bevel gear (6) is fixedly connected to a second rotating shaft (7), one end of the second rotating shaft (7) is fixedly connected to a cleaning brush (8), one output end of the double-shaft motor (3) is fixedly connected to a first pulley (9), and the first pulley (9) is connected to the first bevel gear (6) through a belt drive. A second pulley (10) is provided, the inner wall of the keyway of the second pulley (10) is fixedly connected to a third rotating shaft (11), one end of the third rotating shaft (11) is fixedly connected to a third bevel gear (12), the outer surface of the third bevel gear (12) is meshed with a fourth bevel gear (13), the inner wall of the keyway of the fourth bevel gear (13) is fixedly connected to a water inlet pipe (14), the bottom end of the water inlet pipe (14) is fixedly connected to a shunt pipe (15), the outer surface of the shunt pipe (15) is fixedly mounted with a plurality of nozzles (16), the top side of the tank body (1) is fixedly mounted with a sealing seat (17) with a hollow structure inside, and the sealing seat (17) is connected to a liquid adding structure (18).

2. A coke oven flue gas desulfurization and denitrification device according to claim 1, characterized in that: An air intake pipe (19) is fixedly connected to the outer surface of the tank body (1), an air exhaust pipe (20) is fixedly connected to the top side of the tank body (1), and the air intake pipe (19) is located below the filter screen (2).

3. A coke oven flue gas desulfurization and denitrification device according to claim 2, characterized in that: The liquid adding structure (18) comprises a water adding pipe (1801), a water delivery pipe (1802), a water pump (1803) and a water tank (1804); one side of the sealing seat (17) is fixedly connected to the water adding pipe (1801); one end of the water adding pipe (1801) is fixedly connected to the water delivery pipe (1802); one end of the water delivery pipe (1802) away from the water adding pipe (1801) is fixedly connected to the water pump (1803); and the water inlet of the water pump (1803) is fixedly connected to the water tank (1804) via a pipeline.

4. A coke oven flue gas desulfurization and denitrification device according to claim 3, characterized in that: A sealing hole is provided inside the sealing seat (17), a portion of the water inlet pipe (14) is located inside the sealing hole, the top side of the water inlet pipe (14) is in contact with the bottom side of the water adding pipe (1801), and a sealing ring (21) is sleeved on the outer surface of the top end of the water inlet pipe (14) and the outer surface of the bottom end of the water adding pipe (1801), and the sealing ring (21) is adapted to the size of the sealing hole.

5. A coke oven flue gas desulfurization and denitrification device according to claim 4, characterized in that: A stabilizing plate (22) is fixedly connected to the top side of the tank body (1); the third rotating shaft (11) passes through the stabilizing plate (22); the third rotating shaft (11) is rotatably connected to the stabilizing plate (22) via a bearing; the third rotating shaft (11) passes through one side of the sealing seat (17) and extends to the interior of the sealing seat (17); the third rotating shaft (11) is rotatably connected to the sealing seat (17) via a bearing.

6. A coke oven flue gas desulfurization and denitrification device according to claim 5, characterized in that: The inner wall of the tank body (1) is fixedly connected to a support rod (23), one end of the support rod (23) is fixedly connected to a protection box (24), the first bevel gear (5) and the second bevel gear (6) are both located inside the protection box (24), the first rotating shaft (4) is rotatably connected to the protection box (24) via a bearing, and the second rotating shaft (7) is rotatably connected to the protection box (24) via a bearing.

7. A coke oven flue gas desulfurization and denitrification device according to claim 6, characterized in that: The cleaning brush (8) is located below the filter (2), the bristles of the cleaning brush (8) are in contact with the filter (2), and the center position of the second rotating shaft (7) and the center position of the filter (2) are located on the same vertical plane.

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