Desulfurization device for waste gas treatment

Abstract

The utility model relates to the technical field of desulfurization devices, in particular to a desulfurization device for waste gas treatment, which is characterized in that the inner wall of a treatment tower is fixedly connected with a plurality of baffle plates which are uniformly distributed along the vertical direction and are staggered left and right, and the upper end of each baffle plate is integrally provided with a desulfurization tank; a plurality of evenly-distributed overflow pipes are integrally embedded in the baffle plates respectively, the lower ends of the overflow pipes are in threaded connection with sprayers respectively, the backflow pipe is fixedly communicated with a liquid storage device, the bottom of the liquid storage device is fixedly communicated with the inlet end of a liquid supply pipe, and the outlet end of the liquid supply pipe is fixedly communicated with the inlet end of a lifting pump. The outlet end of the lifting pump is fixedly communicated with the inlet end of a spraying pipe, the inlet end of the spraying pipe penetrates into the tower body and corresponds to the desulfurization tank on the uppermost side, the inner wall of the treatment tower is fixedly connected with a longitudinal shaft, and the longitudinal shaft is rotationally connected with a buffer impeller corresponding to the outlet end of the spraying pipe; a smoke exhaust auxiliary assembly is also arranged at the upper part of the treatment tower.

Description

Technical Field

[0001] This utility model relates to the field of desulfurization equipment technology, and in particular to a desulfurization device for waste gas treatment. Background Technology

[0002] In chemical production processes, waste gas emissions are always a critical issue requiring treatment, especially those with high sulfur dioxide content. Without proper desulfurization, these gases not only threaten human health but also cause significant environmental damage, potentially leading to acid rain and even greater environmental and economic losses. Therefore, desulfurization of sulfur-containing waste gases is necessary before discharge. However, some existing waste gas desulfurization equipment relies solely on spraying, which limits the residence time of the waste gas within the treatment device, thus affecting the desulfurization effect. This application proposes a desulfurization device for waste gas treatment to address these issues. Utility Model Content

[0003] To address the above situation and overcome the shortcomings of existing technologies, this utility model provides a desulfurization device for waste gas treatment. The technical solution it provides includes a treatment tower, with an inlet pipe fixedly connected to the bottom of the tower and an outlet pipe fixedly connected to the top. The inner wall of the treatment tower is characterized by multiple vertically evenly distributed baffles arranged in a staggered left-right configuration. Each baffle has a desulfurization tank integrally arranged at its upper end. Each baffle is also integrally fitted with several evenly distributed overflow pipes, and the lower end of each overflow pipe is threadedly connected to... The treatment tower has a nozzle, a return pipe fixedly connected to its lower end, a liquid storage device fixedly connected to its lower end, an inlet of a supply pipe fixedly connected to its bottom, an inlet of a booster pump fixedly connected to its outlet, and an inlet of a spray pipe fixedly connected to its outlet. The inlet of the spray pipe penetrates the tower body and corresponds to the uppermost desulfurization tank. A longitudinal shaft is fixedly connected to the inner wall of the treatment tower, and a buffer impeller corresponding to the outlet of the spray pipe is rotatably connected to the longitudinal shaft. An exhaust auxiliary assembly is also arranged on the upper part of the treatment tower.

[0004] Preferably, the liquid storage device includes a liquid storage tank fixedly connected to a return pipe, the liquid storage tank storing desulfurization liquid, a stirring shaft coaxially rotatably connected to the liquid storage tank, a plurality of stirring rods evenly distributed vertically integrally connected to the stirring shaft, a stirring motor for driving the stirring shaft fixedly connected to the upper end of the liquid storage tank, a liquid addition pipe fixedly connected to the upper end of the liquid storage tank, a discharge pipe fixedly connected to the bottom of the liquid storage tank, and a discharge valve installed on the discharge pipe.

[0005] Preferably, a butterfly valve is installed on the reflux pipe, and a supply valve is installed on the supply pipe.

[0006] Preferably, the outlet end of the smoke inlet pipe is fixedly connected to a plurality of support rods evenly distributed around its axis, and the support rods are all fixedly connected to a conical cap for blocking the outlet end of the smoke inlet pipe.

[0007] Preferably, the smoke exhaust auxiliary component includes a bracket coaxially fixedly connected to the inner wall of the treatment tower, a fan coaxially mounted on the bracket and facing the smoke exhaust pipe, a drive motor for driving the fan fixedly connected to the bracket, and a protective shell for protecting the drive motor fixedly connected to the bracket.

[0008] The beneficial effects of this utility model are:

[0009] 1. When this application is used, the waste gas to be treated is sent into the bottom of the treatment tower from the flue gas inlet pipe, and then the flue gas flows from the bottom of the tower to the exhaust pipe above. During the flow, under the action of each baffle plate, the residence time of the waste gas in the treatment tower is greatly increased, which facilitates the effective desulfurization treatment of the waste gas.

[0010] 2. Under the action of the booster pump, the desulfurization liquid in the storage tank is released through the spray pipe. The desulfurization liquid released through the spray pipe first fills the uppermost desulfurization tank. Then, the desulfurization liquid in the uppermost desulfurization tank overflows into the lower desulfurization tanks through the overflow pipe and nozzles, thus filling each desulfurization tank. This ensures that each desulfurization tank is filled with desulfurization liquid to desulfurize the waste gas. At the same time, when the desulfurization liquid in the desulfurization tank overflows downward through the overflow pipe and nozzles, it will also form a water curtain of desulfurization liquid that covers the entire tower. This water curtain of desulfurization liquid can fully contact and react with the waste gas, thus effectively desulfurizing it. Attached Figure Description

[0011] Figure 1 This is a first-person perspective three-dimensional sectional view of the present invention.

[0012] Figure 2 This is an enlarged view of region A in the first-view perspective stereoscopic sectional view of this utility model.

[0013] Figure 3 This is an enlarged view of region B in the first-view perspective stereoscopic sectional view of this utility model.

[0014] Figure 4 This is the front view of the present utility model.

[0015] Figure 5 This is a second-view perspective stereoscopic view of the present invention.

[0016] Figure Labels

[0017] 1. Treatment tower, 2. Inlet pipe, 3. Exhaust pipe, 4. Baffle plate, 5. Desulfurization tank, 6. Overflow pipe, 7. Nozzle, 8. Return pipe, 9. Liquid storage device, 10. Liquid supply pipe, 11. Booster pump, 12. Spray pipe, 13. Longitudinal shaft, 14. Buffer impeller, 15. Exhaust auxiliary components, 16. Liquid storage tank, 17. Stirring shaft, 18. Stirring rod, 19. Stirring motor, 20. Liquid addition pipe, 21. Discharge pipe, 22. Discharge valve, 23. Butterfly valve, 24. Liquid supply valve, 25. Support rod, 26. Conical cap, 27. Bracket, 28. Exhaust fan, 29. Drive motor, 30. Protective shell. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1-5 The specific embodiments of this utility model will be described in further detail.

[0019] In Example 1, the technical solution is that, during use, the waste gas and desulfurization liquid undergo countercurrent contact for desulfurization treatment. Furthermore, the baffles 4 increase the residence time of the waste gas in the treatment tower 1, thereby ensuring the desulfurization effect. During use, the waste gas to be treated is fed into the bottom of the treatment tower 1 from the inlet pipe 2. The gas then flows from the bottom of the tower to the outlet pipe 3. During this flow, the baffles 4 significantly increase the residence time of the waste gas in the treatment tower 1, thus facilitating effective desulfurization treatment. Under the action of the booster pump 11, the liquid storage device 9 releases the desulfurization liquid in the liquid storage tank 16 through the spray pipe 12. The desulfurization liquid released through the spray pipe 12 first fills the uppermost desulfurization tank 5. Then, the desulfurization liquid in the uppermost desulfurization tank 5 overflows to the lower desulfurization tanks 5 through the overflow pipe 6 and the nozzle 7, thus filling each desulfurization tank 5. This ensures that each desulfurization tank 5 is filled with desulfurization liquid to desulfurize the waste gas. At the same time, when the desulfurization liquid in the desulfurization tank 5 overflows downward through the overflow pipe 6 and the nozzle 7, it will also form a water curtain of desulfurization liquid that covers the entire tower. The water curtain of desulfurization liquid can fully contact and react with the waste gas, thus effectively desulfurizing the waste gas.

[0020] In Example 2, based on Example 1, specifically, during the use of this application, the storage tank 16 of the storage device 9 stores an appropriate amount of desulfurization liquid. Before desulfurization, the supply valve 24 on the supply pipe 10 is opened and the booster pump 11 is started. The booster pump 11 then transports the desulfurization liquid in the storage tank 16 from the supply pipe 10 to the spray pipe 12, so that the desulfurization liquid can be released from the outlet end of the spray pipe 12 to the uppermost desulfurization tank 5. In order to avoid excessive impact on the desulfurization tank 5 caused by the release of desulfurization liquid from the spray pipe 12, an impeller is arranged on the longitudinal shaft 13 corresponding to the outlet end of the spray pipe 12, so as to buffer the impact.

[0021] After the desulfurization liquid enters the uppermost desulfurization tank 5 and accumulates to a certain depth, it overflows downwards through the overflow pipe 6 and the nozzle 7, allowing the desulfurization liquid to fill the lower desulfurization tank 5 in sequence. When the lowermost desulfurization tank 5 is filled, with the continuous operation of the booster pump 11, the overflow pipe 6 and the nozzle 7 will continue to overflow, forming a water curtain of desulfurization liquid in the treatment tower 1. At this time, the exhaust gas can be introduced into the treatment tower 1 from the flue gas inlet pipe 2, and then the exhaust gas will flow from the bottom of the tower to the top of the tower through the exhaust pipe 3. During the flow, the exhaust gas is greatly increased in the treatment tower 1 by the action of the baffle plate 4, which facilitates the exhaust gas to fully contact and react with the desulfurization liquid in the desulfurization tank 5 and the desulfurization liquid water curtain formed by the overflow of the nozzle 7, thereby effectively removing the sulfur components in the exhaust gas.

[0022] In Example 3, based on Example 2, the butterfly valve 23 on the return pipe 8 at the lower end of the treatment tower 1 can be kept normally open. The desulfurization liquid overflowing from the desulfurization tank 5 will eventually fall to the bottom of the treatment tower 1, and then flow back to the storage tank 16 via the return pipe 8, thus facilitating the continuous use of the desulfurization liquid. A stirring shaft 17 is also coaxially arranged on the storage tank 16. Starting the stirring motor 19 drives the stirring shaft 17 to rotate, and the stirring shaft 17, together with the stirring rod 18, will stir the desulfurization liquid in the storage tank 16 to ensure the uniformity of the desulfurization liquid. When the concentration of the desulfurization liquid decreases and it is no longer suitable for operation, the discharge valve 22 on the discharge pipe 21 can be opened to release the desulfurization liquid, and then a suitable amount of new desulfurization liquid can be added to the storage tank 16 through the liquid addition pipe 20.

[0023] In Example 4, based on Example 1, a conical cap 26 is installed at the outlet end of the flue gas inlet pipe 2 via a support rod 25 to prevent desulfurization liquid from entering the flue gas inlet pipe 2. Furthermore, an exhaust auxiliary assembly 15 corresponding to the exhaust pipe 3 is arranged at the top of the treatment tower 1. Starting the drive motor 29 drives the fan 28 on the support 27 to rotate at low speed, facilitating the smooth and efficient discharge of the desulfurized flue gas through the exhaust pipe 3. A protective shell 30 is provided to prevent corrosion of the drive motor 29 and thus its service life.

Claims

1. A desulfurization device for waste gas treatment, comprising a treatment tower (1), a smoke inlet pipe (2) is fixedly communicated with the bottom of the treatment tower (1), a smoke outlet pipe (3) is fixedly communicated with the top of the treatment tower (1), characterized in that, The processing tower (1) inner wall is fixedly connected with a plurality of baffle plates (4) which are uniformly distributed along the vertical direction and staggered left and right, the upper end of each baffle plate (4) is integrally arranged with a desulfurization tank (5), and each baffle plate (4) is integrally embedded with a plurality of evenly distributed overflow pipes (6), the lower end of each overflow pipe (6) is threadedly connected with a spray head (7), the lower end of the processing tower (1) is fixedly connected with a reflux pipe (8), the reflux pipe (8) is fixedly connected with a liquid storage device (9), the bottom of the liquid storage device (9) is fixedly connected with the inlet end of a liquid supply pipe (10), the outlet end of the liquid supply pipe (10) is fixedly connected with the inlet end of a booster pump (11), the outlet end of the booster pump (11) is fixedly connected with the inlet end of a spray pipe (12), the inlet end of the spray pipe (12) penetrates into the tower body and corresponds to the uppermost desulfurization tank (5), the inner wall of the processing tower (1) is fixedly connected with a longitudinal shaft (13), the longitudinal shaft (13) is rotatably connected with a buffer impeller (14) corresponding to the outlet end of the spray pipe (12), and the upper part of the processing tower (1) is further provided with a smoke exhaust auxiliary assembly (15).

2. The desulfurizing device for exhaust gas treatment according to claim 1, characterized by The liquid storage device (9) comprises a liquid storage barrel (16) fixedly connected with the reflux pipe (8), the liquid storage barrel (16) accumulates desulfurization liquid, the liquid storage barrel (16) is coaxially rotatably connected with a stirring shaft (17), the stirring shaft (17) is integrally fixedly connected with a plurality of stirring rods (18) which are uniformly distributed along the vertical direction, the upper end of the liquid storage barrel (16) is fixedly connected with a stirring motor (19) for driving the stirring shaft (17), the upper end of the liquid storage barrel (16) is fixedly connected with a liquid feeding pipe (20), and the bottom of the liquid storage barrel (16) is fixedly connected with a discharge pipe (21), and the discharge pipe (21) is provided with a discharge valve (22).

3. The desulfurizing device for exhaust gas according to claim 1, characterized by The butterfly valve (23) is installed on the reflux pipe (8), and the liquid supply valve (24) is installed on the liquid supply pipe (10).

4. The desulfurizing device for exhaust gas according to claim 1, characterized by The outlet end of the smoke inlet pipe (2) is fixedly connected with a plurality of support rods (25) which are uniformly distributed around the axis, and the support rods (25) are fixedly connected with a conical cap (26) for shielding the outlet end of the smoke inlet pipe (2).

5. The desulfurizing device for exhaust gas according to claim 1, characterized by The smoke exhaust auxiliary assembly (15) comprises a bracket (27) which is fixedly connected with the inner wall of the processing tower (1) coaxially, the bracket (27) is coaxially installed with a supply fan (28) which faces the smoke exhaust pipe (3), the bracket (27) is fixedly connected with a driving motor (29) for driving the supply fan (28), and the bracket (27) is fixedly connected with a protection shell (30) for protecting the driving motor (29).

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