Defluorination and dedusting efficient demisting device of defluorination tower

Abstract

The utility model is applicable to the technical field of fluorine-containing waste gas treatment, and provides a defluorination tower defluorination and dust removal efficient demisting device which comprises a defluorination tower, a wastewater tank is connected to the bottom of the middle of the defluorination tower, and a cleaning assembly is arranged in the defluorination tower; according to the utility model, through the arrangement of the filter screen and the cleaning brush, dust particles falling along with airflow can be intercepted, the cleaning brush is driven by the double-output-shaft motor to rotate, dust on the surface of the filter screen can be cleaned in time, the filter screen is prevented from being blocked, and the air permeability of the filter screen is ensured, so that the gas-liquid mass transfer efficiency of the filler layer is maintained, and the defluorination reaction effect is improved; a spray head in the cleaning assembly can wash a rotational flow plate and a drainage net in the equipment operation process, a suction pump conveys cleaning liquid in a liquid storage box to a hollow rod through a connecting pipeline, then the cleaning liquid is sprayed out through the spray head, fog drops, dust and impurities attached to the surface of a demisting element are washed away, the manual cleaning frequency is reduced, and the maintenance cost is reduced; and continuous and stable operation of equipment is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of fluorine-containing waste gas treatment technology, and in particular relates to a high-efficiency defluorination, dust removal, and demisting device for defluorination towers. Background Technology

[0002] In the current industrial development process, many industries such as chemicals, metallurgy, and building materials are booming. However, these industries often emit large amounts of fluorine-containing waste gas during production operations, which is quite harmful to the human body. Even low-concentration inhalation can cause respiratory diseases. However, fluorine is a key industrial raw material, and it would be a pity to discard it. Therefore, purifying fluorine-containing waste gas while recycling and utilizing fluorine resources and developing fluorine products to achieve a win-win situation of controlling fluorine pollution and utilizing fluorine resources from the source has become an inevitable choice for environmentally friendly and resource-saving modern enterprises, and a necessary measure to practice the circular economy.

[0003] Traditional defluorination towers have revealed many problems during actual operation. In terms of demisting, the defluorination tower generates a large number of mist droplets carrying dust particles during operation, which is extremely detrimental to the normal operation of the tower. Dust-like mist droplets easily adhere to the packing layer, thus affecting the defluorination effect of the defluorination tower. Therefore, a high-efficiency defluorination and dust removal device for defluorination towers is needed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a high-efficiency defluorination, dust removal, and demisting device for defluorination towers, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-efficiency defluorination, dust removal, and demisting device for a defluorination tower includes a defluorination tower, a wastewater tank connected to the bottom center of the defluorination tower, a cleaning component inside the defluorination tower, a waste bin connected to the bottom of the defluorination tower, and a waste gas pipe connected through one side of the bottom of the defluorination tower.

[0007] The cleaning assembly includes a dual-output shaft motor. One output end of the dual-output shaft motor is connected to a first connecting shaft. A connecting rod is connected to the outer side of one end of the first connecting shaft. A cleaning brush is connected to the top of the connecting rod. The other output end of the dual-output shaft motor is connected to a vortex plate. A second connecting shaft is connected to the middle of the top of the vortex plate. A hollow rod is connected to one end of the second connecting shaft. A connecting pipe is connected through the outer side of the hollow rod. A limit ring is connected to one end of the connecting pipe. A spray head is connected through the bottom of the connecting pipe.

[0008] In a further technical solution, a rotating component is connected to the top of the inner side, one end of the hollow rod is rotatably connected to the bottom of the rotating component, a suction pump is connected to the top of the defluorination tower, and both ends of the suction pump are connected to connecting pipes. One end of one of the connecting pipes is connected to a storage tank, and the other connecting pipe is rotatably connected to the top of the rotating component.

[0009] In a further technical solution, the interior of the defluorination tower is provided with a hydrophobic mesh, a packing layer and a filter screen from top to bottom. The bottom of the filter screen is in contact with the top of the cleaning brush. The swirl plate is located above the hydrophobic mesh. There are three cleaning brushes and three connecting rods.

[0010] In a further technical solution, a wastewater trough is provided at the bottom center of the defluorination tower, the wastewater trough is located above the wastewater tank, and both sides of the wastewater tank are funnel-shaped.

[0011] In a further technical solution, an outlet pipe is connected through the top of the defluorination tower, and the interior of the defluorination tower is rotatably connected to a limiting ring.

[0012] In a further technical solution, a support rod is connected to the bottom of the wastewater tank, a drain pipe is connected through one side of the wastewater tank, and a motor box is connected to the outside of the dual-output shaft motor.

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

[0014] This invention, through the arrangement of a filter screen and a cleaning brush, can intercept dust particles falling with the airflow, preventing them from adhering to the packing layer. The dual-shaft motor drives the cleaning brush to rotate, which can clean the dust on the surface of the filter screen in a timely manner, avoid filter screen blockage, ensure filter screen air permeability, thereby maintaining the gas-liquid mass transfer efficiency of the packing layer and improving the defluorination reaction effect. The spray head in the cleaning component can wash the cyclone plate and hydrophobic screen during equipment operation. The suction pump delivers the cleaning liquid in the storage tank to the hollow rod through the connecting pipe, and then sprays it out through the spray head to wash away the droplets, dust and impurities adhering to the surface of the demisting element, reducing the frequency of manual cleaning, reducing maintenance costs, and ensuring continuous and stable operation of the equipment.

[0015] This invention, with its wastewater tank and waste bin design, enables the centralized collection of waste liquid and separated dust waste generated during the defluorination process. The funnel-shaped structure on both sides of the wastewater tank facilitates the rapid flow of waste liquid into the tank, while the waste bin can collect dust particles intercepted by the filter screen, facilitating subsequent unified treatment, reducing the risk of environmental pollution, and meeting environmental protection requirements.

[0016] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the main body of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the cleaning component of this utility model;

[0019] Figure 3 This is a three-dimensional cross-sectional view of the main body of this utility model;

[0020] Figure 4 This utility model Figure 2 A magnified three-dimensional structural diagram of A in the middle.

[0021] In the diagram: 1. Defluorination tower; 2. Wastewater tank; 3. Cleaning assembly; 4. Waste bin; 5. Exhaust gas pipe; 6. Motor box; 7. Drain pipe; 8. Gas outlet pipe; 9. Suction pump; 10. Connecting pipe; 11. Support rod; 12. Rotating component; 13. Drainage screen; 14. Wastewater tank; 15. Filter screen; 16. Packing layer; 301. Dual-shaft motor; 302. First connecting shaft; 303. Connecting rod; 304. Cleaning brush; 305. Swirl plate; 306. Second connecting shaft; 307. Hollow rod; 308. Limiting ring; 309. Connecting pipe; 310. Spray head. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0024] like Figures 1-4 As shown, this utility model embodiment provides a high-efficiency defluorination and dust removal device for a defluorination tower, including a defluorination tower 1, a wastewater tank 2 connected to the bottom of the middle of the defluorination tower 1, a cleaning component 3 provided inside the defluorination tower 1, a waste bin 4 connected to the bottom of the defluorination tower 1, and an exhaust gas pipe 5 connected through one side of the bottom of the defluorination tower 1.

[0025] The cleaning component 3 includes a dual-axis motor 301. One output end of the dual-axis motor 301 is connected to a first connecting shaft 302. A connecting rod 303 is connected to the outer side of one end of the first connecting shaft 302. A cleaning brush 304 is connected to the top of the connecting rod 303. The other output end of the dual-axis motor 301 is connected to a vortex plate 305. A second connecting shaft 306 is connected to the middle of the top of the vortex plate 305. A hollow rod 307 is connected to one end of the second connecting shaft 306. A connecting pipe 309 is connected through the outer side of the hollow rod 307. A limit ring 308 is connected to one end of the connecting pipe 309. A spray head 310 is connected through the bottom of the connecting pipe 309.

[0026] In this embodiment, by controlling the rotation of the dual-output shaft motor 301, the first connecting shaft 302 and the cyclone plate 305 can be rotated. The rotation of the first connecting shaft 302 can drive the cleaning brush 304 to rotate, which can clean the dust on the surface of the filter screen 15 in time, avoid the filter screen 15 from clogging, ensure the air permeability of the filter screen 15, thereby maintaining the gas-liquid mass transfer efficiency of the packing layer 16 and improving the defluorination reaction effect. Through the combination of the cyclone plate 305 and the hydrophobic mesh 13, centrifugal force and surface hydrophobic properties are used to achieve graded interception of droplets and dust of different particle sizes. The cyclone plate 305 rotates the airflow, and large-diameter droplets are thrown towards the tower wall for separation under the action of centrifugal force. The hydrophobic mesh 13 further captures small-diameter droplets, effectively avoiding droplet entrainment and dust penetration, ensuring the exhaust gas purification effect. The rotation of the cyclone plate 305 can drive the second connecting shaft 306 to rotate, which in turn can drive the hollow rod 307 and the spray head 310 to rotate, greatly increasing the spraying range of the spray head 310.

[0027] like Figure 2 , Figure 3 and Figure 4 As shown, specifically, a rotating part 12 is connected to the top of the inner side of the tower, one end of the hollow rod 307 is rotatably connected to the bottom of the rotating part 12, and a suction pump 9 is connected to the top of the defluorination tower 1. Both ends of the suction pump 9 are connected to connecting pipes 10. One end of one connecting pipe 10 is connected to the storage tank, and the other connecting pipe 10 is rotatably connected to the top of the rotating part 12.

[0028] The interior of the defluorination tower 1 is provided with a hydrophobic mesh 13, a packing layer 16 and a filter screen 15 from top to bottom. The bottom of the filter screen 15 is in contact with the top of the cleaning brush 304. The swirl plate 305 is located above the hydrophobic mesh 13. There are three cleaning brushes 304 and three connecting rods 303.

[0029] Wastewater tank 14 is provided at the bottom center of the defluorination tower 1. Wastewater tank 14 is located above wastewater tank 2. Both sides of wastewater tank 2 are funnel-shaped.

[0030] The top of the defluorination tower 1 is connected to the gas outlet pipe 8, and the interior of the defluorination tower 1 is rotatably connected to the limiting ring 308.

[0031] A support rod 11 is connected to the bottom of the wastewater tank 2, and a drain pipe 7 is connected through one side of the wastewater tank 2. A motor box 6 is connected to the outside of the dual-shaft motor 301.

[0032] In this embodiment, the suction pump 9 delivers the cleaning liquid from the storage tank to the hollow rod 307 through the connecting pipe 10, and then sprays it out through the spray head 310 to wash away the droplets, dust and impurities attached to the surface of the demisting element, reducing the frequency of manual cleaning, lowering maintenance costs, and ensuring continuous and stable operation of the equipment. The design of the wastewater tank 2 and the waste bin 4 realizes the centralized collection of waste liquid and separated dust waste generated during the defluorination process. The funnel-shaped structure on both sides of the wastewater tank 14 helps the waste liquid to flow into the tank quickly. The waste bin 4 can collect the dust particles intercepted by the filter screen 15, which is convenient for subsequent unified treatment, reduces the risk of environmental pollution, and meets environmental protection requirements.

[0033] The working principle of this utility model is as follows: First, the fluorine-containing waste gas enters the bottom of the defluorination tower 1 through the waste gas pipe 5 and flows from bottom to top. The waste gas passes through the filter screen 15, and dust particles are intercepted by the filter screen 15 and fall into the waste bin 4, achieving preliminary dust removal. The waste gas continues to rise and fully contacts the absorbent in the packing layer 16 to carry out the defluorination reaction, removing the fluorides in the waste gas. The absorbent after the reaction flows into the wastewater tank 2. Then, by controlling the rotation of the dual-output shaft motor 301, the first connecting shaft 302 and the swirl plate 305 can be driven to rotate. The rotation of the first connecting shaft 302 can drive... The rotating cleaning brush 304 can promptly clean the dust on the surface of the filter screen 15. Finally, the rotation of the swirl plate 305 can drive the second connecting shaft 306 to rotate, which in turn can drive the hollow rod 307 and the spray head 310 to rotate, greatly increasing the spraying range of the spray head 310. The cleaning liquid in the storage tank is transported to the hollow rod 307 through the connecting pipe 10 by the suction pump 9, and then sprayed out through the spray head 310 to wash away the droplets, dust and impurities attached to the surface of the demisting element, reducing the frequency of manual cleaning, reducing maintenance costs, and ensuring continuous and stable operation of the equipment.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 high-efficiency defluorination, dust removal, and demisting device for a defluorination tower, comprising a defluorination tower (1), characterized in that: The bottom of the defluorination tower (1) is connected to a wastewater tank (2), the interior of the defluorination tower (1) is equipped with a cleaning component (3), the bottom of the defluorination tower (1) is connected to a waste bin (4), and a waste gas pipe (5) is connected through one side of the bottom of the defluorination tower (1). The cleaning assembly (3) includes a dual-shaft motor (301), one output end of which is connected to a first connecting shaft (302). A connecting rod (303) is connected to the outer side of one end of the first connecting shaft (302). A cleaning brush (304) is connected to the top of the connecting rod (303). A vortex plate (305) is connected to the other output end of the dual-shaft motor (301). A second connecting shaft (306) is connected to the middle of the top of the vortex plate (305). A hollow rod (307) is connected to one end of the second connecting shaft (306). A connecting pipe (309) is connected through the outer side of the hollow rod (307). A limit ring (308) is connected to one end of the connecting pipe (309). A spray head (310) is connected through the bottom of the connecting pipe (309).

2. The high-efficiency defluorination, dust removal, and demisting device for defluorination towers according to claim 1, characterized in that: A rotating component (12) is connected to the top of the inner side. One end of the hollow rod (307) is rotatably connected to the bottom of the rotating component (12). A suction pump (9) is connected to the top of the defluorination tower (1). Both ends of the suction pump (9) are connected to connecting pipes (10). One end of one of the connecting pipes (10) is connected to the storage tank, and the other connecting pipe (10) is rotatably connected to the top of the rotating component (12).

3. The high-efficiency defluorination, dust removal, and demisting device for defluorination towers according to claim 1, characterized in that: The defluorination tower (1) is provided with a hydrophobic mesh (13), a packing layer (16) and a filter screen (15) from top to bottom. The bottom of the filter screen (15) is in contact with the top of the cleaning brush (304). The swirl plate (305) is located above the hydrophobic mesh (13). There are three cleaning brushes (304) and three connecting rods (303).

4. The high-efficiency defluorination, dust removal, and demisting device for defluorination towers according to claim 1, characterized in that: The bottom center of the defluorination tower (1) is provided with a wastewater tank (14), which is located above the wastewater tank (2). Both sides of the wastewater tank (2) are funnel-shaped.

5. The high-efficiency defluorination, dust removal, and demisting device for defluorination towers according to claim 1, characterized in that: The top of the defluorination tower (1) is connected to an outlet pipe (8), and the interior of the defluorination tower (1) is rotatably connected to a limiting ring (308).

6. The high-efficiency defluorination, dust removal, and demisting device for defluorination towers according to claim 1, characterized in that: The bottom of the wastewater tank (2) is connected to a support rod (11), and a drain pipe (7) is connected through one side of the wastewater tank (2). The outside of the dual-shaft motor (301) is connected to a motor box (6).

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