A vertical scrubbing tower

Abstract

The utility model relates to the technical field of washing tower, especially stand -type washing tower, when using, tail gas enters washing tower main part inside through air inlet pipe, starts circulating delivery assembly, and circulating delivery assembly makes washing liquid of washing tower main part inside bottom to be delivered to washing tower main part inside upper side and shows curtain shape and sprays, and the curtain shape washing liquid forms washing liquid film in the washing tower main part inside, contacts with tail gas, improves washing effect, improves service life, including washing tower main part, one filling filter screen, second filling filter screen and air inlet pipe, the washing tower main part input is provided with air inlet pipe, and the inside of washing tower main part is provided with one filling filter screen and second filling filter screen from low to high, still includes circulating delivery assembly, and the circulating delivery assembly input is connected with the washing tower main body output, and the circulating delivery assembly output extends to the inside of washing tower main part and is above second filling filter screen, and the circulating liquid shows curtain shape when spraying through circulating delivery assembly output.

Description

Technical Field

[0001] This utility model relates to the technical field of washing towers, and in particular to a vertical washing tower. Background Technology

[0002] A scrubbing tower is a gas purification device widely used in pretreatment processes such as industrial waste gas purification and dust removal. Its working principle involves ensuring full contact between the waste gas and the scrubbing liquid, utilizing methods such as liquid absorption, chemical reaction, or physical capture to remove harmful substances, dust, or particulate matter from the waste gas.

[0003] Currently, vertical scrubbing towers commonly employ a combination of spray systems and packed filters to enhance gas-liquid contact efficiency. For example, a vertical scrubbing tower disclosed in Chinese Patent Publication No. CN213668599U features a rotatable spray pipe and atomizing nozzles. This design aims to use the reaction force generated when the scrubbing liquid is sprayed from the inclined nozzles to drive the spray pipe to rotate in the horizontal plane, thereby dynamically changing the spray area to expand the scrubbing coverage and improve the purification effect.

[0004] However, in practical applications, it has been found that this reaction-force-based rotating spray structure has significant reliability issues. In the complex working environment inside the scrubbing tower, the rotational motion of the spray pipe is easily obstructed or completely stopped due to the following reasons: Unstable water pressure: When the pressure of the water supply system fluctuates, the reaction force generated by the nozzle is insufficient to overcome the static friction of the rotary joint, resulting in difficulty in starting the rotation or jamming.

[0005] Scaling and clogging: Impurities in the washing liquid or crystals generated by the reaction can easily accumulate at the rotary joint and support frame, increasing the frictional resistance of the rotating parts and ultimately causing the spray pipe to fail to rotate normally.

[0006] Structural wear: After long-term operation, the seals and bearings of the rotary joint will wear, which will not only cause water leakage, but also cause unbalanced rotation or even jamming.

[0007] Once the spray pipe loses its rotation function, its nozzle degenerates into a fixed-point spray, resulting in a fixed spray range and uneven coverage. This creates "short-circuit" or "dead-angle" areas within the tower, causing some exhaust gas to pass through without sufficient contact with the scrubbing liquid, severely impacting overall scrubbing efficiency and the stability of purification effects. Furthermore, existing nozzles primarily generate atomized droplets, which are ineffective for conditions requiring large droplet impact capture or the formation of a gas-liquid isolation layer. Utility Model Content

[0008] To solve the above-mentioned technical problems, this utility model provides a vertical washing tower.

[0009] This utility model discloses a vertical scrubbing tower, comprising a main body, a first-stage filter screen, a second-stage filter screen, and an air inlet pipe. The main body has an air inlet pipe at its input end. Inside the main body, the first and second-stage filter screens are arranged from low to high. It also includes a circulation conveying component. The input end of the circulation conveying component is connected to the output end of the main body, and the output end extends into the main body and above the second-stage filter screen. The circulating liquid is sprayed out in a curtain shape through the output end of the circulation conveying component. In use, exhaust gas enters the main body through the air inlet pipe. Activating the circulation conveying component transports the scrubbing liquid from the bottom of the main body to the top, where it is sprayed out in a curtain shape. This curtain-shaped scrubbing liquid forms a scrubbing liquid film inside the main body, ensuring full contact with the exhaust gas. The combined effect of the first and second-stage filter screens enhances the scrubbing effect and extends the service life of the scrubbing tower.

[0010] Preferably, the washing assembly includes a transfer pump, a first infusion pipe, a second infusion pipe, a third infusion pipe, an annular spray pipe, curtain-shaped nozzles, and a filter assembly. The output end of the air inlet pipe is connected to the first infusion pipe, and the output end of the second infusion pipe is connected to the input end of the transfer pump. An annular spray pipe is installed inside the main body of the washing tower, and multiple sets of curtain-shaped nozzles are installed at the bottom end of the annular spray pipe. The output end of the transfer pump is connected to the input end of the third infusion pipe, and the output end of the third infusion pipe is connected to the input end of the annular spray pipe. The output end of the first infusion pipe is connected to the input end of the second infusion pipe. A filter assembly is installed between the liquid inlet and outlet. When the delivery pump is started, the washing liquid at the bottom of the main body of the scrubbing tower is filtered through the filter assembly and then enters the annular spray pipe through the No. 2 and No. 3 delivery pipes. The washing liquid inside the annular spray pipe is sprayed out in a curtain shape through multiple sets of curtain-shaped nozzles. These multiple curtain-shaped nozzles work together to form a washing liquid film, which fully contacts and washes the rising exhaust gas. The filter assembly filters out impurities, preventing them from clogging the curtain-shaped nozzles and extending their service life.

[0011] Preferably, the filtration assembly includes a first tee pipe, a second tee pipe, a filter box, a box cover, a first valve, and a delivery pipe. The input end of the first tee pipe is connected to the output end of the first infusion pipe. The two sets of output ends of the first tee pipe are respectively connected to the input ends of the two sets of delivery pipes. The output ends of the two sets of delivery pipes are respectively connected to the two sets of input ends of the second tee pipe. The output end of the second tee pipe is connected to the input end of the second infusion pipe. A filter box and two sets of first valves are installed on the delivery pipe. The filter box is located between the two sets of first valves. The top of the filter box is covered with a box cover. A filter screen is installed inside the filter box. Opening the two sets of first valves on the first set of delivery pipes and closing the two sets of first valves on the second set of delivery pipes starts the delivery pump, thereby allowing the filter screen inside the first set of filter boxes to filter impurities in the circulating liquid. When it is necessary to clean the first set of filter screens, opening the two sets of first valves on the second set of delivery pipes and closing the two sets of first valves on the first set of delivery pipes completes the switching between the two sets of filter boxes, improving washing efficiency.

[0012] Preferably, it also includes a sampling tube and a sampling valve. The sampling tube is installed on the No. 3 infusion tube, and the sampling valve is installed on the sampling tube. When it is necessary to sample and test the washing liquid, the staff opens the sampling valve so that the washing liquid is discharged through the sampling tube for sampling, which improves convenience.

[0013] Preferably, the cover also includes a handle; when the cover is sealed to the top of the filter box, the operator can move the cover using the handle, improving convenience.

[0014] Preferably, it also includes a handle cover, on which the handle is fitted; the operator grips the handle with the handle cover to reduce the occurrence of slippage.

[0015] Preferably, it also includes a support frame. The outer wall of the main body of the washing tower is provided with a support frame, and multiple sets of supports are fixedly connected to the No. 3 infusion pipe. When the washing liquid is transported in the No. 3 infusion pipe, the multiple sets of supports reinforce and support the No. 3 infusion pipe to avoid water hammer inside the No. 3 infusion pipe, which would cause the No. 3 infusion pipe to shake and improve stability.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: When in use, the exhaust gas enters the interior of the scrubbing tower body through the air inlet pipe, and the circulation conveying component is activated. The circulation conveying component transports the washing liquid at the bottom of the inner side of the scrubbing tower body to the upper inner side of the scrubbing tower body and sprays it out in a curtain shape. The curtain-shaped washing liquid forms a washing liquid film inside the scrubbing tower body, which fully contacts the exhaust gas. With the cooperation of the No. 1 and No. 2 filling filters, the washing liquid fully contacts the exhaust gas, improving the washing effect and extending the service life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the isometric structure of this utility model; Figure 2 This is an exploded structural diagram of the present invention; Figure 3 This is an enlarged structural diagram of the curtain-shaped nozzle and delivery pump, etc. Figure 4 This is an enlarged structural diagram of the filter box and the No. 2 three-way pipe, etc. Figure 5 This is an enlarged structural diagram of the No. 1 filling filter and the main body of the washing tower.

[0018] The following are labeled in the attached diagram: 1. Scrubber body; 2. No. 1 packed filter screen; 3. No. 2 packed filter screen; 4. Air inlet pipe; 5. Transfer pump; 6. No. 1 infusion pipe; 7. No. 2 infusion pipe; 8. No. 3 infusion pipe; 9. Annular spray pipe; 10. Curtain-shaped nozzle; 11. No. 1 tee pipe; 12. No. 2 tee pipe; 13. Filter box; 14. Box cover; 15. No. 1 valve; 16. Sampling pipe; 17. Sampling valve; 18. Handle; 19. Handle cover; 20. Support; 21. Transfer pipe. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0020] Example 1 like Figures 1 to 5 As shown, a vertical scrubbing tower of this utility model includes a scrubbing tower body 1, a first filling filter 2, a second filling filter 3, and an air inlet pipe 4. The air inlet pipe 4 is provided at the input end of the scrubbing tower body 1. The first filling filter 2 and the second filling filter 3 are arranged from low to high inside the scrubbing tower body 1. It also includes a circulation conveying component. The input end of the circulation conveying component is connected to the output end of the scrubbing tower body 1. The output end of the circulation conveying component extends into the interior of the scrubbing tower body 1 and is above the second filling filter 3. When the circulating liquid is sprayed out through the output end of the circulation conveying component, it is in the form of a curtain. like Figure 2 , Figure 3 and Figure 4As shown, the washing assembly includes a delivery pump 5, a first infusion pipe 6, a second infusion pipe 7, a third infusion pipe 8, an annular spray pipe 9, curtain-shaped nozzles 10, and a filter assembly. The output end of the air inlet pipe 4 is connected to the first infusion pipe 6, and the output end of the second infusion pipe 7 is connected to the input end of the delivery pump 5. The annular spray pipe 9 is installed inside the main body 1 of the washing tower, and multiple sets of curtain-shaped nozzles 10 are installed at the bottom end of the annular spray pipe 9. The output end of the delivery pump 5 is connected to the input end of the third infusion pipe 8, and the output end of the third infusion pipe 8 is connected to the input end of the annular spray pipe 9. A filter assembly is installed between the output end of the first infusion pipe 6 and the input end of the second infusion pipe 7.

[0021] In this embodiment, the delivery pump 5 is started, so that the washing liquid inside the bottom side of the washing tower body 1 is filtered by the filter assembly and then enters the annular spray pipe 9 through the second delivery pipe 7 and the third delivery pipe 8. The washing liquid entering the annular spray pipe 9 is sprayed out in a curtain shape through multiple sets of curtain-shaped nozzles 10. The multiple sets of curtain-shaped washing liquid cooperate to form a washing liquid film, which fully contacts and washes the rising exhaust gas. At the same time, the washing liquid fully contacts the exhaust gas with the cooperation of the first filling filter screen 2 and the second filling filter screen 3. The filter assembly filters the impurities to prevent the impurities from clogging the curtain-shaped nozzles 10.

[0022] Example 2 like Figures 1 to 5 As shown, a vertical scrubbing tower of this utility model includes a scrubbing tower body 1, a first filling filter 2, a second filling filter 3, and an air inlet pipe 4. The air inlet pipe 4 is provided at the input end of the scrubbing tower body 1. The first filling filter 2 and the second filling filter 3 are arranged from low to high inside the scrubbing tower body 1. It also includes a circulation conveying component. The input end of the circulation conveying component is connected to the output end of the scrubbing tower body 1. The output end of the circulation conveying component extends into the interior of the scrubbing tower body 1 and is above the second filling filter 3. When the circulating liquid is sprayed out through the output end of the circulation conveying component, it is in the form of a curtain. like Figure 2 , Figure 3 and Figure 4 As shown, the washing assembly includes a delivery pump 5, a first infusion pipe 6, a second infusion pipe 7, a third infusion pipe 8, an annular spray pipe 9, curtain-shaped nozzles 10, and a filter assembly. The output end of the air inlet pipe 4 is connected to the first infusion pipe 6, and the output end of the second infusion pipe 7 is connected to the input end of the delivery pump 5. The annular spray pipe 9 is installed inside the main body 1 of the washing tower, and multiple sets of curtain-shaped nozzles 10 are installed at the bottom end of the annular spray pipe 9. The output end of the delivery pump 5 is connected to the input end of the third infusion pipe 8, and the output end of the third infusion pipe 8 is connected to the input end of the annular spray pipe 9. A filter assembly is installed between the output end of the first infusion pipe 6 and the input end of the second infusion pipe 7. like Figure 2 and Figure 4As shown, the filtration assembly includes a first three-way pipe 11, a second three-way pipe 12, a filter box 13, a box cover 14, a first valve 15, and a delivery pipe 21. The input end of the first three-way pipe 11 is connected to the output end of the first infusion pipe 6. The two sets of output ends of the first three-way pipe 11 are respectively connected to the input ends of the two sets of delivery pipes 21. The output ends of the two sets of delivery pipes 21 are respectively connected to the two sets of input ends of the second three-way pipe 12. The output end of the second three-way pipe 12 is connected to the input end of the second infusion pipe 7. A filter box 13 and two sets of first valves 15 are installed on the delivery pipe 21. The filter box 13 is located between the two sets of first valves 15. The top of the filter box 13 is covered with a box cover 14. A filter screen is installed inside the filter box 13. It also includes a sampling tube 16, a sampling valve 17, a handle 18, a handle sleeve 19, and a bracket 20. The sampling tube 16 is installed on the No. 3 infusion tube 8, and the sampling valve 17 is installed on the sampling tube 16. The top of the box cover 14 is provided with a handle 18, and a handle sleeve 19 is fitted on the handle 18. A bracket 20 is provided on the outer wall of the washing tower body 1, and multiple sets of brackets 20 are fixedly connected to the No. 3 infusion tube 8.

[0023] In this embodiment, the delivery pump 5 is started, causing the washing liquid inside the bottom side of the main body 1 of the washing tower to pass through the filter assembly and enter the annular spray pipe 9 through the second and third delivery pipes 7 and 8. The washing liquid entering the annular spray pipe 9 is sprayed out in a curtain shape through multiple sets of curtain-shaped nozzles 10. The multiple sets of curtain-shaped washing liquid work together to form a washing liquid film, which fully contacts and washes the rising exhaust gas. At the same time, the washing liquid, with the cooperation of the first and second filled filter screens 2 and 3, fully contacts the exhaust gas. The filter assembly filters impurities to prevent impurities from clogging the curtain-shaped nozzles 10. The first set of two No. 1 valves 15 on the first set of delivery pipes 21 are closed, and the delivery pump 5 is started, so that the filter screen inside the first set of filter boxes 13 filters the impurities in the circulating liquid. When it is necessary to clean the first set of filter screens, the two sets of No. 1 valves 15 on the second set of delivery pipes 21 are opened and the two sets of No. 1 valves 15 on the first set of delivery pipes 21 are closed, and the switching between the two sets of filter boxes 13 is completed. When it is necessary to sample and test the washing liquid, the staff opens the sampling valve 17, so that the washing liquid is discharged through the sampling pipe 16 for sampling.

[0024] This utility model discloses a vertical scrubbing tower with a curtain-shaped nozzle, also known as a fan-shaped nozzle or flat nozzle, which is a special nozzle capable of dispersing liquid into a fan-shaped, sheet-shaped, or curtain-shaped liquid curtain. Unlike atomizing nozzles that produce conical atomized droplets, the curtain-shaped nozzle produces a continuous, uniform liquid curtain of a certain thickness. The delivery pump 5 and curtain-shaped nozzle 10 of this utility model's vertical scrubbing tower are commercially available. Those skilled in the industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0025] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A vertical scrubbing tower, comprising a scrubbing tower body (1), a first filling filter (2), a second filling filter (3), and an air inlet pipe (4), wherein the scrubbing tower body (1) is provided with an air inlet pipe (4) at its input end, and the first filling filter (2) and the second filling filter (3) are arranged from low to high inside the scrubbing tower body (1), characterized in that, It also includes a circulation conveying component, the input end of which is connected to the output end of the washing tower body (1), the output end of which extends into the interior of the washing tower body (1) and above the No. 2 filling filter (3), and the circulating liquid is sprayed out in a curtain shape through the output end of the circulation conveying component.

2. A vertical scrubbing tower as described in claim 1, characterized in that, The washing assembly includes a delivery pump (5), a first delivery pipe (6), a second delivery pipe (7), a third delivery pipe (8), an annular spray pipe (9), a curtain-shaped nozzle (10), and a filter assembly. The output end of the air inlet pipe (4) is provided with the first delivery pipe (6), and the output end of the second delivery pipe (7) is connected to the input end of the delivery pump (5). The main body (1) of the washing tower is provided with an annular spray pipe (9), and the bottom end of the annular spray pipe (9) is provided with multiple sets of curtain-shaped nozzles (10). The output end of the delivery pump (5) is connected to the input end of the third delivery pipe (8), and the output end of the third delivery pipe (8) is connected to the input end of the annular spray pipe (9). A filter assembly is provided between the output end of the first delivery pipe (6) and the input end of the second delivery pipe (7).

3. A vertical scrubbing tower as described in claim 2, characterized in that, The filter assembly includes a No. 1 three-way pipe (11), a No. 2 three-way pipe (12), a filter box (13), a box cover (14), a No. 1 valve (15), and a delivery pipe (21). The input end of the No. 1 three-way pipe (11) is connected to the output end of the No. 1 infusion pipe (6). The two sets of output ends of the No. 1 three-way pipe (11) are respectively connected to the input ends of the two sets of delivery pipes (21). The output ends of the two sets of delivery pipes (21) are respectively connected to the two sets of input ends of the No. 2 three-way pipe (12). The output end of the No. 2 three-way pipe (12) is connected to the input end of the No. 2 infusion pipe (7). A set of filter boxes (13) and two sets of No. 1 valves (15) are provided on the delivery pipe (21). The filter box (13) is located between the two sets of No. 1 valves (15). The top of the filter box (13) is covered with a box cover (14). A filter screen is provided inside the filter box (13).

4. A vertical scrubbing tower as described in claim 2, characterized in that, It also includes a sampling tube (16) and a sampling valve (17). The No. 3 infusion tube (8) is equipped with a sampling tube (16) and a sampling valve (17) is equipped on the sampling tube (16).

5. A vertical scrubbing tower as described in claim 3, characterized in that, It also includes a handle (18), which is provided at the top of the lid (14).

6. A vertical scrubbing tower as described in claim 5, characterized in that, It also includes a handle cover (19), which is fitted onto the handle (18).

7. A vertical scrubbing tower as described in claim 2, characterized in that, It also includes a support (20), and the outer wall of the main body (1) of the washing tower is provided with a support (20), and multiple sets of supports (20) are fixedly connected to the No. 3 infusion pipe (8).

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