A tail gas absorption tower sedimentation tank rapid cleaning device

Abstract

The utility model relates to a kind of tail gas absorption tower sedimentation tank rapid cleaning device, belong to tail gas absorption tower technical field, including absorption tower body and sedimentation tank, the upper portion of sedimentation tank is fixed with horizontal guide rod in front and back side, guide rod is equipped with guide sleeve, two guide sleeves are fixed with hanger plate between, the bottom of hanger plate is fixed with arc fixed plate, the bottom of fixed plate is fixed with the cleaning water pipe being set along front-back direction, the bottom of cleaning water pipe is fixed with multiple cleaning pipes along front-back direction, cleaning pipe is connected with the cleaning spray head that water is sprayed to bottom and all around, cleaning water pipe is connected with water delivery conduit, water delivery conduit other end is connected with water delivery hose and is drawn out from sedimentation tank, water delivery hose is connected with high-pressure water supply equipment.The utility model guide sleeve on the sliding of guide rod can drive cleaning spray head horizontal movement, cooperate with the nozzle design that water is sprayed to bottom and all around, can comprehensively flush sedimentation tank inner wall, cleaning is cleaner, and without setting sealing element, leakage does not occur.

Description

Technical Field

[0001] This utility model relates to a rapid cleaning device for the sedimentation tank of a tail gas absorption tower, belonging to the technical field of tail gas absorption towers. Background Technology

[0002] Industrial production processes generate large amounts of exhaust gas containing harmful substances. Direct emission of this gas would cause serious environmental pollution, so exhaust gas absorption towers are needed to purify it. During operation, impurities in the exhaust gas fall into the sedimentation tank at the bottom along with the spray liquid, where they accumulate over time to form sediment.

[0003] The existing methods for cleaning sedimentation tanks are mostly manual, which is not only labor-intensive but also inefficient. Some mechanical cleaning devices use rotating scrapers to remove sediment, but because the sprayed liquid is corrosive, leaks often occur at the seals of the scraper shaft. Utility Model Content

[0004] This invention provides a rapid cleaning device for the sedimentation tank of a tail gas absorption tower, solving the problems mentioned in the background art.

[0005] This utility model relates to a rapid cleaning device for the sedimentation tank of a tail gas absorption tower, including an absorption tower body and a sedimentation tank at its bottom. The sedimentation tank is equipped with a drain pipe. Horizontal guide rods are fixed on the front and rear sides of the upper part of the sedimentation tank. Guide sleeves are provided on the guide rods. A hanging plate is fixed between two guide sleeves. An arc-shaped fixing plate is fixed to the bottom of the hanging plate. A cleaning water supply pipe arranged in the front-rear direction is fixed to the bottom of the fixing plate. Multiple cleaning pipes are fixed to the bottom of the cleaning water supply pipe in the front-rear direction. A cleaning nozzle for spraying water to the bottom and all sides is connected to the cleaning pipe. A water supply conduit is connected to the cleaning water supply pipe. The other end of the water supply conduit passes through the sedimentation tank and is connected to a water supply hose. The water supply hose is connected to a high-pressure water supply device.

[0006] As a preferred embodiment, the absorption tower body is equipped with an air inlet pipe at the bottom and an air outlet at the top. The absorption tower body contains packing material, and a spray head is located above the packing material, connected to a spray water inlet pipe. The air inlet pipe and outlet allow for the orderly entry and exit of exhaust gas. The packing material increases the contact area between the exhaust gas and the spray liquid, and the absorbent sprayed by the spray head can fully react with the exhaust gas, improving the exhaust gas purification effect.

[0007] As a preferred embodiment, the packing material is provided with perforated plates at both the upper and lower ends, and the perforated plates are fixed to the absorption tower body.

[0008] As a preferred embodiment, a conical baffle plate is provided above the spray head, and a support rod is fixed to the top of the baffle plate, with the top of the support rod fixed to the absorption tower body. The conical baffle plate can block the rising exhaust gas, prolonging the residence time of the exhaust gas in the absorption tower body, and the water mist generated by the liquid just sprayed from the spray head will collide with the conical baffle plate as it rises, reducing the amount of water mist discharged.

[0009] As a preferred embodiment, a limit ring is fixed to the outer end of the water delivery pipe, and a breathing bend is provided at the top of the sedimentation tank.

[0010] As a preferred embodiment, the top center of the sedimentation tank has a welding hole that fits snugly with the lower end of the absorption tower body. The upper part of the welding hole has a conical welding slope (first type), and a reinforcing ring is provided on the outer side of the upper part of the welding hole. The outer side of the reinforcing ring is welded and fixed to the sedimentation tank. The inner wall of the reinforcing ring is a conical welding slope (second type). A transition gap is provided between the top of welding slope (first type) and the bottom of welding slope (second type). A weld layer is formed between welding slope (first type), welding slope (second type), the welding hole, and the outer wall of the absorption tower body. This welding structure increases the welding contact area and forms a three-layer weld contact on the side. Combined with the reinforcement effect of the reinforcing ring, it significantly improves the structural strength and sealing performance of the connection between the sedimentation tank and the absorption tower body, effectively preventing leakage problems.

[0011] As a preferred embodiment, the bottom inner wall of the sedimentation tank is inclined with the right side higher than the left side, and the drain pipe is located at the left end of the sedimentation tank.

[0012] This utility model has the following beneficial effects: The sliding of the guide sleeve on the guide rod can drive the cleaning nozzle to move horizontally. Combined with the nozzle design that sprays water to the bottom and all sides, it can thoroughly rinse the inner wall of the sedimentation tank, making the cleaning more thorough. Moreover, there is no need to install seals, so there will be no leakage. In addition, when not in use, the water supply pipe can be retracted into the sedimentation tank to prevent it from affecting personnel movement. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 A partial three-dimensional structural diagram; Figure 3 for Figure 1 Schematic diagram of the structure at point A; Figure 4 for Figure 1 Schematic diagram of the structure at point B; In the diagram: 1. Air outlet; 2. Air baffle plate; 3. Spray head; 4. Reinforcing ring; 5. Packing material; 6. Absorption tower body; 7. Orifice plate; 8. Air inlet pipe; 9. Sedimentation tank; 10. Water supply hose; 11. Limiting ring; 12. Water supply conduit; 13. Guide rod; 14. Hanging plate; 15. Fixing plate; 16. Cleaning water supply pipe; 17. Cleaning pipe; 18. Welded layer. Detailed Implementation

[0014] The present invention will be further described below with reference to the embodiments.

[0015] Example 1, as Figures 1 to 4 As shown, this utility model is a rapid cleaning device for the sedimentation tank of a tail gas absorption tower, including an absorption tower body 6 and a sedimentation tank 9 set at its bottom. A drain pipe is provided on the sedimentation tank 9. Horizontal guide rods 13 are fixed to the front and rear sides of the upper part of the sedimentation tank 9. Guide sleeves are provided on the guide rods 13, and a hanging plate 14 is fixed between two guide sleeves. An arc-shaped fixing plate 15 is fixed to the bottom of the hanging plate 14. A cleaning water supply pipe 16 arranged in the front-rear direction is fixed to the bottom of the fixing plate 15. Multiple cleaning pipes 17 are fixed to the bottom of the cleaning water supply pipe 16 in the front-rear direction. Cleaning nozzles for spraying water to the bottom and surrounding areas are connected to the cleaning pipes 17. A water supply conduit 12 is connected to the cleaning water supply pipe 16. The other end of the water supply conduit 12 passes through the sedimentation tank 9 and is connected to a water supply hose 10. The water supply hose 10 is connected to a high-pressure water supply device. The high-pressure water supply device can be a high-pressure water pump.

[0016] The absorption tower body 6 is provided with an air inlet pipe 8 at the bottom and an air outlet 1 at the top. The absorption tower body 6 is provided with packing material 5 inside and a spray head 3 above the packing material 5. The spray head 3 is connected to a spray water inlet pipe.

[0017] In use, the exhaust gas to be treated is first introduced into the absorption tower body 6 through the air inlet pipe 8, and at the same time, the absorbent liquid is introduced into the spray head 3 through the spray water inlet pipe. The spray head 3 sprays the absorbent liquid evenly onto the packing 5. During the rising process, the exhaust gas fully contacts and reacts with the absorbent liquid on the surface of the packing 5. The harmful substances are absorbed by the absorbent liquid, and the treated clean gas is discharged from the air outlet 1.

[0018] The absorbent liquid after the reaction carries impurities from the exhaust gas into the sedimentation tank 9, where the impurities gradually settle. The drain valve on the drain pipe can be opened periodically to discharge the wastewater. During discharge, after releasing the wastewater and liquid from the sedimentation tank, the high-pressure water supply equipment is activated. High-pressure water enters the cleaning water supply pipe 16 through the water delivery hose 10 and water delivery conduit 12, and then sprays water onto the bottom and inner wall of the sedimentation tank 9 through the cleaning nozzle on the cleaning pipe 17. Simultaneously, the water delivery conduit 12 is moved, causing the guide sleeve to slide on the guide rod 13, which in turn moves the cleaning nozzle along the guide rod 13, achieving a thorough rinsing of the inner wall of the sedimentation tank 9. The washed-down sediment is discharged through the drain pipe.

[0019] In Example 2, based on Example 1, the packing 5 is provided with perforated plates 7 at both the upper and lower ends, and the perforated plates 7 are fixed on the absorption tower body 6.

[0020] A conical baffle plate 2 is provided above the spray head 3. A support rod is fixed to the top of the baffle plate 2, and the top of the support rod is fixed to the absorption tower body 6. A liquid addition pipe and a circulation pipe can be installed at the top of the sedimentation tank 9. The circulation pipe is connected to the spray water inlet pipe, and a circulation pump and filter are installed on the circulation pipe to achieve the recycling of the spray liquid.

[0021] A limit ring 11 is fixed to the outer end of the water delivery pipe 12, and a breathing bend is provided at the top of the sedimentation tank 9.

[0022] The top center of the sedimentation tank 9 is provided with a welding hole that fits with the lower end of the absorption tower body 6. The upper part of the welding hole is provided with a conical welding slope one. A reinforcing ring 4 is provided on the outer side of the upper part of the welding hole. The outer side of the reinforcing ring 4 is welded and fixed to the sedimentation tank 9. The inner wall of the reinforcing ring 4 is a conical welding slope two. There is a transition gap between the top of the welding slope one and the bottom of the welding slope two. A welding layer 18 is provided between the welding slope one, the welding slope two, the welding hole and the outer wall of the absorption tower body 6. The outer wall of the welding layer 18 has a multi-slope structure, which increases the welding area and makes the welding more secure.

[0023] The bottom inner wall of the sedimentation tank 9 is inclined with the right side higher than the left side. The drain pipe is located at the left end of the sedimentation tank 9. The bottom of the sedimentation tank 9 is provided with a supporting flange, and the drain pipe is provided with a drain valve.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0025] In the description of this utility model, the terms "inner", "outer", "longitudinal", "transverse", "upper", "lower", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not require that this utility model must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A rapid cleaning device for a sedimentation tank of a tail gas absorption tower, comprising an absorption tower body (6) and a sedimentation tank (9) disposed at its bottom, wherein a drain pipe is provided on the sedimentation tank (9), characterized in that: A horizontal guide rod (13) is fixed on the front and back sides of the upper part of the sedimentation tank (9). A guide sleeve is provided on the guide rod (13). A hanging plate (14) is fixed between the two guide sleeves. An arc-shaped fixing plate (15) is fixed at the bottom of the hanging plate (14). A cleaning water supply pipe (16) is fixed at the bottom of the fixing plate (15) in the front and back direction. Multiple cleaning pipes (17) are fixed at the bottom of the cleaning water supply pipe (16) in the front and back direction. A cleaning nozzle that sprays water to the bottom and the surrounding area is connected to the cleaning pipe (17). A water supply conduit (12) is connected to the cleaning water supply pipe (16). The other end of the water supply conduit (12) passes through the sedimentation tank (9) and is connected to a water supply hose (10). A high-pressure water supply device is connected to the water supply hose (10).

2. The rapid cleaning device for the sedimentation tank of a tail gas absorption tower according to claim 1, characterized in that: The absorption tower body (6) is provided with an air inlet pipe (8) at the bottom and an air outlet (1) at the top. The absorption tower body (6) is provided with packing material (5) and a spray head (3) is provided above the packing material (5). The spray head (3) is connected to a spray water inlet pipe.

3. The rapid cleaning device for the sedimentation tank of a tail gas absorption tower according to claim 2, characterized in that: The packing (5) is provided with perforated plates (7) at both the upper and lower ends, and the perforated plates (7) are fixed on the absorption tower body (6).

4. The rapid cleaning device for the sedimentation tank of a tail gas absorption tower according to claim 2, characterized in that: A conical baffle plate (2) is provided above the spray head (3). A support rod is fixed to the top of the baffle plate (2), and the top of the support rod is fixed to the absorption tower body (6).

5. A rapid cleaning device for the sedimentation tank of a tail gas absorption tower according to claim 1, characterized in that: A limit ring (11) is fixed to the outer end of the water delivery pipe (12), and a breathing bend is provided at the top of the sedimentation tank (9).

6. The rapid cleaning device for the sedimentation tank of a tail gas absorption tower according to claim 1, characterized in that: The top center of the sedimentation tank (9) is provided with a welding hole that fits with the lower end of the absorption tower body (6). The upper part of the welding hole is provided with a conical welding slope one. The outer side of the upper part of the welding hole is provided with a reinforcing ring (4). The outer side of the reinforcing ring (4) is welded and fixed to the sedimentation tank (9). The inner wall of the reinforcing ring (4) is a conical welding slope two. There is a transition gap between the top of the welding slope one and the bottom of the welding slope two. There is a welding layer (18) between the welding slope one, the welding slope two, the welding hole and the outer wall of the absorption tower body (6).

7. The rapid cleaning device for the sedimentation tank of a tail gas absorption tower according to claim 1, characterized in that: The bottom inner wall of the sedimentation tank (9) is inclined with the right side higher than the left side, and the sewage pipe is located at the left end of the sedimentation tank (9).

Images