A spray cleaning tower with multi-stage filtering structure

Abstract

The utility model discloses a kind of spray purification towers with multistage filtering structure, including tower body, spray component and water pump, the fixed plate is fixedly installed with multiple outer pipes, the spray component upper portion is provided with dehumidification layer, the tower body top gas outlet is installed with dehumidification structure by screw, the spray component is connected with connecting pipe by connecting piece, the connecting pipe is fixedly connected with water pump away from spray component one end, the water pump one end is fixedly connected with tower body by pipeline, the filter assembly includes inner tube, filling layer, filter plate and screw texture.The spray purification tower with multistage filtering structure, by filter assembly, it is convenient to carry out multistage filtration to waste gas, to improve purification effect, while the every process of tower body is set in the cooperation of independent box body, filter plate and filling layer are convenient to dismount, by the synergistic effect of evaporation of dehumidification structure and adsorption of dehumidification layer, remove moisture in waste gas after purification, improve purification effect.

Description

Technical Field

[0001] This utility model relates to the field of spray purification tower technology, specifically a spray purification tower with a multi-stage filtration structure. Background Technology

[0002] A spray purification tower is an environmental protection device that uses liquid (usually water or a chemical solution) to fully contact industrial waste gas, removing harmful substances from the waste gas through physical absorption, chemical reaction, or adsorption. The waste gas enters from the bottom of the tower and comes into countercurrent contact with the liquid (absorbent liquid) sprayed by the spray system inside the tower, forming a liquid film or droplets, causing the pollutants in the waste gas to be absorbed by the liquid or undergo a chemical reaction.

[0003] Referring to Chinese Patent Publication No. CN118142328A, published on June 7, 2024, a spray purification tower is disclosed. The overflow prevention mechanism includes a first conduit, the upper end of which passes through a collecting mechanism. Several first annular baffles are evenly spaced along the length of the first conduit. The bottom end of each first annular baffle is connected to a second conduit. Several through holes are evenly spaced along the axial direction on each first annular baffle. A buffer zone is formed between each first annular baffle and the inner wall of the first conduit, and each buffer zone is connected to the through holes. In this invention, the waste gas at the inner wall of the first conduit moves upward a certain distance and then enters the buffer zone before being released from the through holes. The released waste gas is perpendicular to the downward-moving water mist. After multiple treatments, the waste gas is released from the upper end of the first conduit, ensuring that the waste gas moving along the inner wall of the first conduit is fully treated by the water mist before release, avoiding incomplete treatment and improving the waste gas treatment effect.

[0004] In the aforementioned existing technologies, exhaust gas is only purified by spraying, and the purification effect of exhaust gas needs to be improved. A multi-stage packing layer structure can be designed to filter harmful substances in exhaust gas to improve the purification effect. At the same time, exhaust gas may contain particulate impurities, and multi-stage filter plates can be set to filter particulate impurities to avoid damage to the packing layer, thereby improving the service life of the packing layer. In addition, all filter structures need to be replaced regularly to further improve the purification effect of exhaust gas.

[0005] The existing technologies mentioned above have the following technical problems: they do not have a multi-stage packing layer structure, which makes the exhaust gas purification effect need to be improved; they do not have a multi-stage particulate impurity filtration structure, which causes particulate impurities to damage the packing layer, affecting its service life, and making it inconvenient to replace the filtration structure. Therefore, we propose a spray purification tower with a multi-stage filtration structure to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a spray purification tower with a multi-stage filtration structure to solve the problems mentioned in the background art, such as the lack of a multi-stage packing layer structure, which results in an inadequate exhaust gas purification effect, and the lack of a multi-stage particulate impurity filtration structure, which causes particulate impurities to damage the packing layer and affect its service life.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a spray purification tower with a multi-stage filtration structure, comprising a tower body, a spray assembly, and a water pump. A fixing plate and a dehumidification layer are installed inside the tower body. Multiple outer pipes are fixedly installed inside the fixing plate. A filter assembly is installed inside each outer pipe. A spray assembly is positioned above the filter assembly. A dehumidification layer is positioned above the spray assembly. A dehumidification structure is installed at the air outlet at the top of the tower body using screws. The spray assembly is connected to a connecting pipe via a connector. A water pump is fixedly connected to the end of the connecting pipe away from the spray assembly. One end of the water pump is fixedly connected to the tower body via a pipe.

[0008] The filter assembly includes an inner tube, a filling layer, a filter plate, and a threaded texture. Multiple filling layers and multiple filter plates are fixedly installed inside the inner tube, and the inner tube is threadedly connected to the outer tube through the threaded texture.

[0009] Preferably, the tower body includes a liquid storage tank, a filter tank, a spray tank, and a dehumidification tank. The top of the liquid storage tank is fixedly connected to the filter tank by bolts, the top of the filter tank is fixedly connected to the spray tank by bolts, and the top of the spray tank is fixedly connected to the dehumidification tank by bolts.

[0010] Preferably, the storage tank contains water or a chemical solution, the filter box has fixed plates at both the top and bottom, and the spray box is equipped with a spray assembly.

[0011] Preferably, the dehumidifier box has an air outlet at the top and a dehumidifier layer is fixedly installed inside the dehumidifier box.

[0012] Preferably, the dehumidification structure includes a heating wire, a dehumidification rod, a fixing frame, and a connecting plate. Multiple dehumidification rods are fixedly installed inside the fixing frame, and heating wires are embedded in the dehumidification rods. A connecting plate is fixedly installed on the outside of the fixing frame.

[0013] Preferably, the connecting plate is fixedly installed at the air outlet at the top of the dehumidification box by screws.

[0014] Preferably, the filter plate has a decreasing pore size from top to bottom.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the spray purification tower with a multi-stage filtration structure facilitates multi-stage filtration of exhaust gas through the filtration components, thereby improving the purification effect. At the same time, each process of the tower body is set in an independent box, and the filter plate and filling layer are easy to disassemble and assemble. Through the synergistic effect of evaporation of the dehumidification structure and adsorption of the dehumidification layer, the moisture in the purified exhaust gas is removed, thereby improving the purification effect.

[0016] 1. Equipped with a filter assembly, the multi-layer filter plates have decreasing pore size from top to bottom. This gradient interception design ensures balanced load on each filter plate, extending the overall service life. For the selection of multiple filling layers, the filling layer material with the highest purification effect is selected according to the specific waste gas to be purified. Through the synergistic effect of multiple filter plates and multiple filling layers, the purification effect of waste gas is improved, while the overall service life is also increased.

[0017] Furthermore, the inner tube is connected to the outer tube by a threaded connection, and this threaded design makes the inner tube removable.

[0018] 2. The tower body is provided, consisting of a liquid storage tank, a filter tank, a spray tank, and a dehumidification tank from bottom to top. The two tanks are fixedly connected by bolts, making each tank removable. The removability of the inner tubes, in conjunction with the removability of each tank in the tower body, facilitates the replacement of the packing layer and filter plates.

[0019] 3. It is equipped with a dehumidification structure and a dehumidification layer. The dehumidification rod is embedded with a heating wire. Turning on the heating wire heats the dehumidification rod. The dehumidification layer is a material that can absorb moisture in the gas. The adsorption of the dehumidification layer and the evaporation of the heating wire work together to further improve the purification effect.

[0020] Furthermore, the upper and lower sides of the fixed frame are arranged horizontally and vertically respectively, which can improve the dehumidification effect;

[0021] Furthermore, a connecting plate is fixedly installed on the outside of the fixed frame. The connecting plate is fixedly installed at the air outlet at the top of the dehumidification box by screws. The screw connection makes the dehumidification structure easy to disassemble, thereby facilitating the maintenance and repair of the dehumidification structure. Attached Figure Description

[0022] Figure 1 This is a frontal sectional view of the present invention.

[0023] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0024] Figure 3 This utility model Figure 1 Enlarged structural diagram at point B;

[0025] Figure 4 This is a schematic diagram of the dehumidification structure of this utility model;

[0026] Figure 5 This is a schematic diagram showing the positional relationship between the outer pipe and the spray assembly of this utility model;

[0027] Figure 6 This is a schematic diagram of the tower structure of this utility model.

[0028] In the diagram: 1. Tower body; 101. Liquid storage tank; 102. Filter box; 103. Spray box; 104. Dehumidification box; 2. Filter assembly; 201. Inner tube; 202. Packing layer; 203. Filter plate; 204. Thread texture; 3. Fixing plate; 4. Outer tube; 5. Dehumidification layer; 6. Dehumidification structure; 601. Heating wire; 602. Dehumidification rod; 603. Fixing frame; 604. Connecting plate; 7. Spray assembly; 8. Connecting pipe; 9. Water pump. Detailed Implementation

[0029] 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.

[0030] Please see Figures 1-6 The present invention provides the following technical solution:

[0031] Example 1: A spray purification tower with a multi-stage filtration structure includes a tower body 1, a spray assembly 7, and a water pump 9. A fixing plate 3 and a dehumidification layer 5 are installed inside the tower body 1. Multiple outer pipes 4 are fixedly installed inside the fixing plate 3. A filter assembly 2 is installed inside the outer pipes 4. A spray assembly 7 is arranged above the filter assembly 2. A dehumidification layer 5 is arranged above the spray assembly 7. A dehumidification structure 6 is installed at the air outlet at the top of the tower body 1 by screws. A connecting pipe 8 is connected to the spray assembly 7 by a connector. A water pump 9 is fixedly connected to the end of the connecting pipe 8 away from the spray assembly 7. One end of the water pump 9 is fixedly connected to the tower body 1 by a pipe.

[0032] like Figure 1 and Figure 2As shown, the filter assembly 2 includes an inner tube 201, a filling layer 202, a filter plate 203, and a threaded texture 204. Multiple filling layers 202 and multiple filter plates 203 are fixedly installed inside the inner tube 201. The filling layers 202 are located above the filter plates 203 and are provided with three filter plates 203 with different pore sizes. The pore size of the filter plates 203 decreases from top to bottom. The bottom filter plate 203 with the largest pore size intercepts large particles such as sand and fibers >500μm, preventing the subsequent filter plates 203 from clogging prematurely. The filter plates 203 with the medium pore size remove medium particles of 100-500μm and protect the top filter plate 203 with the small pore size, which intercepts fine particles <100μm such as colloids and metal shavings, ensuring the cleanliness of the liquid. This gradient interception design makes the load of each filter plate 203 balanced and extends the overall service life.

[0033] The waste gas, after being filtered to remove particulate impurities, passes through multiple packing layers 202. The lower and middle packing layers 202 can use perforated corrugated packing and PTFE corrugated plates. Perforated corrugated packing has low pressure drop and uniform liquid distribution, making it suitable for efficient gas-liquid contact and applicable to desulfurization, denitrification, VOCs absorption and other processes. PTFE corrugated plates are extremely resistant to acids and alkalis, anti-adhesion, have low surface energy, and are not prone to scaling, making them suitable for the purification of highly corrosive acid mists such as HCl and HF. The upper packing layers 202 can use activated carbon fiber felt and molecular sieve zeolite honeycomb blocks. Activated carbon fiber felt has well-developed micropores and a large adsorption capacity, which can adsorb small molecule organic matter and odors, making it suitable for the deep purification of trace pollutants such as chemical odors and benzene series compounds. Molecular sieve zeolite honeycomb blocks selectively adsorb and are regenerable, with high adsorption efficiency for polar molecules such as NH3 and H2S, making them suitable for the treatment of ammonia or sulfur-containing odorous gases in waste incineration and sewage treatment plants. The packing layer 202 material with the highest purification effect can be selected according to the specific waste gas to be purified.

[0034] The synergistic effect of multiple filter plates 203 and multiple filling layers 202 improves the purification effect of exhaust gas and extends the overall service life.

[0035] The inner tube 201 has threaded textures 204 at both the top and bottom of its outer side, and the outer tube 4 has threaded textures 204 at both the top and bottom of its inner side. Therefore, the inner tube 201 is threadedly connected to the outer tube 4 through the threaded textures 204. The threaded connection makes the inner tube 201 detachable. By holding the top of the inner tube 201 and rotating it, the inner tube 201 and the outer tube 4 can be installed and removed.

[0036] like Figure 1 and Figure 6As shown, the tower body 1 includes a liquid storage tank 101, a filter box 102, a spray box 103, and a dehumidification box 104, which are arranged from bottom to top as follows: liquid storage tank 101, filter box 102, spray box 103, and dehumidification box 104. The two boxes are fixedly connected by bolts, so that each box can be disassembled. The disassembly of the inner tube 201 is matched with the disassembly of each box of the tower body 1, so as to facilitate the replacement of the packing layer 202 and the filter plate 203.

[0037] Example 2: Figure 1 , Figure 3 and Figure 4 As shown, the dehumidification structure 6 includes a heating wire 601, a dehumidification rod 602, a fixing frame 603, and a connecting plate 604. Multiple dehumidification rods 602 are fixedly installed inside the fixing frame 603, arranged horizontally and vertically on the upper and lower sides of the inner side of the fixing frame 603, respectively. This design improves the dehumidification effect. The dehumidification rod 602 is embedded with a heating wire 601. Turning on the heating wire 601 heats the dehumidification rod 602. A dehumidification layer 5 is fixedly installed inside the dehumidification box 104. The purified gas first passes through the dehumidification layer 5, which is a material capable of absorbing moisture from the gas. The gas and the unabsorbed moisture then pass through the dehumidification rods 602. The heated dehumidification rods 602 heat the gas, thereby removing the moisture. The adsorption of the dehumidification layer 5 and the evaporation of the heating wire 601 work synergistically to further improve the purification effect.

[0038] A connecting plate 604 is fixedly installed on the outside of the fixed frame 603. The connecting plate 604 is fixedly installed at the air outlet at the top of the dehumidification box 104 by screws. The screw connection makes the dehumidification structure 6 easy to disassemble, thereby facilitating the maintenance and repair of the dehumidification structure 6.

[0039] Instructions for use: A liquid pipe is fixedly connected to one end of the liquid storage tank 101. The liquid pipe is connected to the outlet pipe through a detachable connector. Fill the liquid storage tank 101 with water or chemical liquid, close its valve, and disconnect the outlet pipe. Connect one end of the water pump 9 to the liquid pipe and the other end to the connecting pipe 8. The end of the connecting pipe 8 away from the water pump 9 is connected to the spray assembly 7 through a detachable connector. An air inlet pipe is fixedly connected to one end of the liquid storage tank 101. Then, the air inlet pipe is fixedly connected to the air outlet pipe. At the same time, connect the dehumidification structure 6 to the top of the dehumidification box 104. Connect the power supply to the heating wire 601 and turn on the heating wire 601 to heat the dehumidification rod 602.

[0040] Exhaust gas is introduced and enters the inner pipe 201, where it is filtered sequentially through each filter plate 203 and the filling layer 202. Figure 5As shown, the spray assembly 7 consists of a water storage pipe and a spray head. Each inner pipe 201 is equipped with a spray head at its top. The spray head sprays the filtered exhaust gas, and the sprayed liquid or water reacts with the exhaust gas to remove harmful substances from the exhaust gas. The purified exhaust gas passes through the dehumidification layer 5 and the dehumidification rod 602 to remove moisture from the gas. After the moisture is removed by the dehumidification rod 602, it is discharged into the air.

[0041] The above completes a series of operations for the spray purification tower with a multi-stage filtration structure. Any content not described in detail in this specification is prior art known to those skilled in the art.

[0042] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0043] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A spray purification tower with a multi-stage filtration structure, comprising a tower body (1), a spray assembly (7), and a water pump (9), characterized in that: The tower body (1) is equipped with a fixing plate (3) and a dehumidification layer (5). Multiple outer pipes (4) are fixedly installed inside the fixing plate (3). A filter assembly (2) is installed inside the outer pipe (4). A spray assembly (7) is set above the filter assembly (2). A dehumidification layer (5) is set above the spray assembly (7). A dehumidification structure (6) is installed at the air outlet at the top of the tower body (1) by screws. The spray assembly (7) is connected to a connecting pipe (8) by a connector. A water pump (9) is fixedly connected to the end of the connecting pipe (8) away from the spray assembly (7). One end of the water pump (9) is fixedly connected to the tower body (1) through a pipe. The filter assembly (2) includes an inner tube (201), a filling layer (202), a filter plate (203), and a threaded texture (204). Multiple filling layers (202) and multiple filter plates (203) are fixedly installed inside the inner tube (201). The inner tube (201) is threadedly connected to the outer tube (4) through the threaded texture (204).

2. The spray purification tower with a multi-stage filtration structure according to claim 1, characterized in that: The tower body (1) includes a liquid storage tank (101), a filter box (102), a spray box (103), and a dehumidification box (104). The top of the liquid storage tank (101) is fixedly connected to the filter box (102) by bolts. The top of the filter box (102) is fixedly connected to the spray box (103) by bolts. The top of the spray box (103) is fixedly connected to the dehumidification box (104) by bolts.

3. A spray purification tower with a multi-stage filtration structure according to claim 2, characterized in that: The storage tank (101) contains water or chemical solution, and the filter box (102) has a fixing plate (3) fixedly installed at the top and bottom. The spray box (103) is equipped with a spray assembly (7).

4. A spray purification tower with a multi-stage filtration structure according to claim 2, characterized in that: The dehumidification box (104) is provided with an air outlet at the top, and a dehumidification layer (5) is fixedly installed inside the dehumidification box (104).

5. A spray purification tower with a multi-stage filtration structure according to claim 1, characterized in that: The dehumidification structure (6) includes a heating wire (601), a dehumidification rod (602), a fixing frame (603), and a connecting plate (604). Multiple dehumidification rods (602) are fixedly installed inside the fixing frame (603), and a heating wire (601) is embedded inside the dehumidification rod (602). A connecting plate (604) is fixedly installed on the outside of the fixing frame (603).

6. A spray purification tower with a multi-stage filtration structure according to claim 5, characterized in that: The connecting plate (604) is fixedly installed at the air outlet at the top of the dehumidification box (104) by screws.

7. A spray purification tower with a multi-stage filtration structure according to claim 1, characterized in that: The filter plate (203) has a decreasing pore size from top to bottom.

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