Alkali washing spraying equipment

Abstract

The utility model discloses alkali washing spraying equipment which comprises a tower body, a pressure stabilizing ring and a liquid separation assembly. A liquid inlet is formed in the end part of the upper side of the tower body, the pressure stabilizing ring and the liquid distribution assembly are arranged on the inner side of the tower body, the pressure stabilizing ring corresponds to the liquid inlet, the liquid distribution assembly is arranged below the pressure stabilizing ring, filler is arranged below the liquid distribution assembly, and the liquid distribution assembly is provided with a liquid distribution disc communicated with the liquid inlet. A traditional spraying type structure is changed into the liquid separation disc structure, so that tail gas absorption liquid can flow into the liquid seepage net layer through the liquid separation cup and then uniformly permeates into the tower body filler on the lower layer through the liquid seepage net layer, it is guaranteed that the filler cannot form a dry wall, when tail gas entering from the bottom passes through the filler, the tail gas and the absorption liquid can be fully mixed, and the tail gas absorption effect is improved. Therefore, pollutants in the tail gas can be fully absorbed.

Description

Technical Field

[0001] This application belongs to the technical field of alkaline washing equipment, specifically relating to an alkaline washing spray equipment. Background Technology

[0002] Hydrogen fluoride tail gas is generally treated by an alkaline scrubbing tower. Its working principle is to separate pollutants from the gas and convert them into harmless substances, thereby purifying the gas. This equipment is a differential contact counter-current type. The packing material inside the tower is the basic component for gas-liquid two-phase contact. It provides a sufficiently large surface area to allow gas-liquid flow without creating excessive resistance. As the rising gas flow and the descending absorbent continuously contact within the packing material, the concentration of the fluid in the rising gas flow gradually decreases until it meets emission requirements at the top of the tower.

[0003] For example, patent CN206082136U discloses an alkaline scrubbing tower that neutralizes hydrogen fluoride tail gas by spraying alkaline solution. The alkaline solution at the bottom of the tower is circulated through a dilute alkaline solution outlet pipe, pipeline, circulating pump, and return alkali pipe. Simultaneously, strong alkali is added into the tower through the feed pipe to increase the concentration of the alkaline solution obtained in the above steps, ensuring that the concentration of the alkaline solution discharged from the tower meets the requirements for subsequent production. In the aforementioned patent, the hydrogen chloride tail gas enters the alkaline scrubbing tower from the bottom, while the absorbent enters from the top. However, the spray structure suffers from uneven spraying, resulting in incomplete absorption of the hydrogen fluoride tail gas. Utility Model Content

[0004] This application provides an alkaline washing spray device to solve the technical problem of uneven spraying in spray structures.

[0005] To solve the above-mentioned technical problems, the present application adopts a technical solution as follows: an alkaline washing spray device, comprising: a tower body, a pressure stabilizing ring, and a liquid distribution component; an inlet is provided at the upper end of the tower body, the pressure stabilizing ring and the liquid distribution component are disposed inside the tower body, the pressure stabilizing ring corresponds to the inlet, the liquid distribution component is disposed below the pressure stabilizing ring, and packing is provided below the liquid distribution component, wherein the liquid distribution component is provided with a liquid distribution plate communicating with the inlet.

[0006] Furthermore, the pressure stabilizing ring includes a connecting ring and a sleeve. The connecting ring is fixed to the upper end of the sleeve and connected to the inner wall of the tower. The connecting ring is located on the upper side of the liquid inlet.

[0007] Furthermore, there is a first gap between the sleeve and the inner wall of the tower, and a second gap between the lower end of the sleeve and the separator.

[0008] Furthermore, the liquid dispensing assembly also includes a dispensing cup located at the center of the dispensing tray, with the dispensing cup having a through-hole design in the middle, wherein the outer diameter of the dispensing cup is smaller than the inner diameter of the sleeve.

[0009] Furthermore, the height of the top of the separatory cup is higher than the height of the bottom of the sleeve.

[0010] Furthermore, a mesh layer is provided on the lower side of the separator, and a permeation mesh layer is provided below the mesh layer.

[0011] Furthermore, there is a third gap between the mesh layer and the lower side of the liquid distribution plate, and multiple sets of liquid holes are evenly distributed in the mesh layer.

[0012] The beneficial effects of this application are: This application changes the traditional spray structure to a liquid distribution plate structure, so that the tail gas absorption liquid can flow into the permeation mesh layer through the liquid distribution cup, and then permeate evenly into the lower tower packing through the permeation mesh layer, ensuring that the packing does not form a dry wall, so that when the tail gas entering from the bottom passes through the packing, the tail gas and the absorption liquid can be fully mixed, thereby fully absorbing the pollutants in the tail gas. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an embodiment of the alkaline washing spray equipment of this application;

[0014] Figure 2 yes Figure 1 A schematic diagram of the structure of region A in the diagram;

[0015] Figure 3 yes Figure 1 A structural diagram of region B in the diagram. Detailed Implementation

[0016] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0017] like Figure 1-3 As shown, this application provides an alkaline washing spray device, comprising: a tower body 1, a pressure stabilizing ring 2, and a liquid distribution assembly 3; the upper end of the tower body 1 is provided with a liquid inlet 11, the pressure stabilizing ring 2 and the liquid distribution assembly 3 are disposed inside the tower body 1, the pressure stabilizing ring 2 corresponds to the liquid inlet 11, the liquid distribution assembly 3 is disposed below the pressure stabilizing ring 2, and a packing 4 is disposed below the liquid distribution assembly 3, wherein the liquid distribution assembly 3 is provided with a liquid distribution plate 31 communicating with the liquid inlet 11. The liquid inlet 11 in the above design can be connected to an external hand sanitizer pipeline, so that the absorbent can flow into the upper surface of the liquid distribution plate 31. When the liquid level reaches the cup opening of the liquid distribution cup 32, it flows into the permeation mesh layer 6, so that it can slowly seep into the lower packing 4, ensuring that the packing 4 does not form a dry wall.

[0018] The pressure stabilizing ring 2 includes a connecting ring 21 and a sleeve 22. The connecting ring 21 is fixed to the upper end of the sleeve 22 and connected to the inner wall of the tower body 1. The connecting ring 21 is located above the liquid inlet 11. In the above design, the connecting ring 21 can connect the upper side of the sleeve 22 to the inner wall of the tower body 1, so that the absorbent liquid flows from the outer wall of the sleeve 22 into the liquid distribution plate 31.

[0019] The sleeve 22 has a first gap L1 with the inner wall of the tower body 1, and the lower end of the sleeve 22 has a second gap L2 with the liquid distribution plate 31. The above design allows the absorbent liquid to flow from the first gap L1 on the outer wall of the sleeve 22 into the liquid distribution plate 31.

[0020] The liquid separation assembly 3 also includes a liquid separation cup 32 located at the center of the liquid separation plate 31. The liquid separation cup 32 is configured to pass through the center, and the outer diameter of the liquid separation cup 32 is smaller than the inner diameter of the sleeve 22. In the above design, the liquid separation cup 32 can allow the absorbent liquid to flow into the lower side of the liquid separation plate 31 through the central opening.

[0021] The top of the separating cup 32 is higher than the bottom of the sleeve 22. In the above design, the absorbent liquid falls into the separating plate 31 through the inlet 11. When the absorbent liquid rises to the height of the cup opening of the separating cup 32, the second gap L2 and the first gap L1 form a connector. When the absorbent liquid flows into the separating plate 31 from the first gap L1, the liquid surface will ripple, while the liquid pressure inside the sleeve 22 is stable and will not be affected by the liquid level in the first gap L1. The liquid level in the second gap L2 can rise evenly until it reaches the cup opening of the separating cup 32.

[0022] A mesh layer 5 is provided on the lower side of the separating plate 31, and a permeable mesh layer 6 is provided below the mesh layer 5. The permeable mesh layer 6 in the above design is formed by stacking multiple layers of permeable mesh. When the absorbent flows into the permeable mesh from the middle of the separating cup 32, it fills the entire permeable mesh layer 6, while the absorbent seeps into the lower packing 4 from the mesh of the bottom layer of permeable mesh, ensuring that the packing 4 does not form a dry wall.

[0023] A third gap L3 exists between the mesh layer 5 and the lower side of the liquid distribution plate 31. Multiple sets of vertically connected liquid holes 51 are evenly distributed within the mesh layer 5. The absorbent liquid in this design flows into the third gap L3, allowing it to flow evenly into the permeate mesh layer 6 through the liquid holes 51.

[0024] The specific working principle is as follows: the inlet 11 is connected to an external absorbent pipe, and the absorbent flows into the distributor plate 31 through the first gap L1. When the liquid level submerges the lower side of the sleeve 22, the first gap L1 and the second gap L2 form a communicating vessel. Because absorbent continuously flows into the first gap L1, the liquid surface in the first gap L1 is constantly rippled, while the pressure in the second gap L2 is fixed to ensure that the liquid surface in the second gap L2 is relatively calm and stable, thus ensuring a fixed amount of liquid falling into the distributor cup 32. After the absorbent flows into the distributor cup 32, it enters the third gap L3, which is filled with absorbent. The absorbent can then flow evenly into the permeation mesh layer 6 through the liquid hole 51, allowing the absorbent to evenly permeate into the packing 4. When the exhaust gas enters the packing 4 and absorbs harmful substances, the exhaust gas can be discharged through the outlet 12 at the top of the tower.

[0025] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An alkaline washing spraying device, characterized in that, include: The tower body comprises a pressure stabilizing ring and a liquid distribution assembly. The upper end of the tower body is provided with a liquid inlet. The pressure stabilizing ring and the liquid distribution assembly are disposed inside the tower body. The pressure stabilizing ring corresponds to the liquid inlet. The liquid distribution assembly is disposed below the pressure stabilizing ring. Packing is provided below the liquid distribution assembly. The liquid distribution assembly is provided with a liquid distribution plate communicating with the liquid inlet.

2. The alkaline washing spray equipment according to claim 1, characterized in that, The pressure stabilizing ring includes a connecting ring and a sleeve. The connecting ring is fixed to the upper end of the sleeve and connected to the inner wall of the tower body. The connecting ring is located above the liquid inlet.

3. The alkaline washing spraying equipment according to claim 2, characterized in that, The sleeve has a first gap with the inner wall of the tower, and the lower end of the sleeve has a second gap with the liquid separator.

4. The alkaline washing spraying equipment according to claim 2, characterized in that, The liquid dispensing assembly also includes a dispensing cup located at the center of the dispensing tray, with the dispensing cup having a through-hole in the middle, wherein the outer diameter of the dispensing cup is smaller than the inner diameter of the sleeve.

5. The alkaline washing spraying equipment according to claim 4, characterized in that, The height of the top of the dispensing cup is higher than the height of the bottom of the sleeve.

6. The alkaline washing spraying equipment according to claim 1, characterized in that, The lower side of the liquid distribution plate is provided with a mesh layer, and the permeation mesh layer is provided below the mesh layer.

7. The alkaline washing spraying equipment according to claim 6, characterized in that, There is a third gap between the mesh layer and the lower side of the liquid distribution plate, and multiple sets of liquid holes are evenly distributed in the mesh layer.

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