CN219376514U

CN219376514U - Spray tower for waste gas treatment

Info

Publication number: CN219376514U
Application number: CN202223140649.2U
Authority: CN
Inventors: 黄健; 费婷婷; 马菲菲; 胡晨捷
Original assignee: Zhejiang Changwei Environmental Engineering Co ltd
Current assignee: Zhejiang Changwei Environmental Engineering Co ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-07-21
Anticipated expiration: 2032-11-25

Abstract

A spray column for exhaust-gas treatment, including the tower body, tower body lower extreme lateral wall is equipped with the air inlet, the upper end of tower body is equipped with the gas outlet with the inside intercommunication of tower body, the inside of tower body is equipped with spray set, filler device, whirl board device, filler device is located spray set's below, whirl board device is located filler device's below, spray set includes the nozzle and the water pipe with the nozzle intercommunication, filler device includes the filler, is used for supporting the backup pad of filler, is used for preventing the clamp plate that the filler was blown away by the updraft, the filler is located between backup pad and the clamp plate.

Description

Spray tower for waste gas treatment

Technical Field

The utility model relates to the technical field of waste gas treatment equipment, in particular to a spray tower for waste gas treatment.

Background

The spray tower is very common in waste gas treatment as a treatment device for environment-friendly waste gas treatment, and the spray tower in the prior art is used for waste gas treatment by selecting one of a filler or a cyclone plate; the swirl plate spray tower is difficult to block due to the large open area, has small resistance and relatively low efficiency, and based on the large open area, the blocking of the filler can be reduced and the waste gas treatment efficiency can be improved by combining the swirl plate spray tower and utilizing the rotation of the blades of the swirl plate to move the filler.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a spray tower with a filler device and a swirl plate device combined so as to improve the waste gas treatment efficiency.

The technical scheme adopted by the utility model is that the spray tower for waste gas treatment comprises a tower body, wherein an air inlet is formed in the side wall of the lower end of the tower body, an air outlet communicated with the inside of the tower body is formed in the upper end of the tower body, a spray device, a packing device and a swirl plate device are arranged in the tower body, the packing device is positioned below the spray device, the swirl plate device is positioned below the packing device, the spray device comprises a nozzle and a water pipe communicated with the nozzle, the packing device comprises packing, a supporting plate for supporting the packing, and a pressing plate for preventing the packing from being blown away by ascending air flow, and the packing is positioned between the supporting plate and the pressing plate.

The number of the spraying devices is three, and the three spraying devices are arranged in parallel in three layers, and further comprise a filling device and a swirl plate device which are matched with the number of the spraying devices.

The utility model also comprises a spray liquid circulating device, wherein the spray liquid circulating device comprises a water pool for supplying water to the water pipe and two water pumps for supplying energy to the water pipe, and the two water pumps are jointly connected with the water pipes of the three spray devices.

The number of the nozzles is four, the four nozzles are arranged in parallel, and the nozzles are hollow cone nozzles.

The filler is a polyhedral hollow sphere or a Raschig ring.

The swirl plate device is a windmill blade.

The upper end of the tower body is provided with a demisting device, the demisting device is positioned above the spraying device, and the demisting device is a plate type demister.

The water tank of the spray liquid circulating device is provided with a water inlet pipe and a water outlet pipe.

The water pump is a monopole horizontal centrifugal pump.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model combines the filler device and the cyclone plate device, only one of which is selected in the prior art is not easy to be blocked, and the efficiency of waste gas treatment is improved.

2. The spraying device in this embodiment has three layers, and compared with one or two layers in the prior art, the efficiency of waste gas treatment is improved.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Detailed Description

The utility model is further illustrated by way of example with reference to the accompanying drawings.

As shown in fig. 1, the spray tower for treating exhaust gas comprises a tower body 1, wherein an air inlet 11 is formed in the side wall of the lower end of the tower body 1, an air outlet 12 communicated with the interior of the tower body 11 is formed in the upper end of the tower body 1, a spray device 2, a packing device 3 and a swirl plate device 4 are arranged in the interior of the tower body 1, the packing device 3 is positioned below the spray device 2, the swirl plate device 4 is positioned below the packing device 3, the spray device 2 comprises a nozzle 21 and a water pipe 22 communicated with the nozzle 21, the packing device 3 comprises a packing 31, a supporting plate 32 for supporting the packing 31 and a pressing plate 33 for preventing the packing 31 from being blown away by ascending air current, and the packing 31 is positioned between the supporting plate 32 and the pressing plate 33; the filler is a 31-faceted hollow sphere or a raschig ring; in the embodiment, the packing device 3 is combined with the cyclone plate device 4, and the packing 31 is moved by the rotation of the blades of the cyclone plate device 4, so that the blocking of the packing 31 can be reduced, the blocking is difficult, and the efficiency of waste gas treatment is improved.

Because the working environment of the device is quite severe and works under acidic corrosion for a long time, the device needs to bear the pressure of the tower body and the solution pressure, also needs to bear the wind pressure during working, and has good corrosion resistance and keeps higher tensile strength, so that the tower body 1 is made of imported ultraviolet-resistant pure polyethylene.

The swirl plate device 4 of the present embodiment is a windmill blade. When the air flow passes through the windmill blades, rotation and centrifugal movement are generated, the absorption liquid is uniformly distributed to each blade to form a thin liquid layer, the thin liquid layer and the upward-rotation air flow form a rotation and centrifugal effect, and a water film with a large surface area is formed at the structural part of the cyclone plate device 4, so that the absorption effect is greatly improved.

The number of the spraying devices 2 is three, and the three spraying devices 2 are arranged in parallel in three layers, and further comprise a filling device 3 and a cyclone plate device 4 which are matched with the number of the spraying devices 2; the water spraying device further comprises a spraying liquid circulating device 5, for example, the spraying liquid is water, the spraying liquid circulating device 5 comprises a water tank 51 for supplying water to the water pipe 22 and a water pump 52 for supplying energy to the water pipe 22, the number of the water pumps 52 is two, and the two water pumps 52 are jointly connected with the water pipes 22 of the three spraying devices 2; the number of the nozzles 21 is four, the four nozzles 21 are arranged in parallel in pairs, and the nozzles 21 are hollow cone nozzles; the spray range is enlarged by the nozzles 21 which are arranged in parallel in pairs, and the treatment efficiency is improved; the water tank 51 of the spray liquid circulating device 5 is provided with a water inlet pipe 53 and a water outlet pipe 54; the water pump 52 is a monopolar horizontal centrifugal pump; the device comprises a pump shell, an impeller, a shaft, a guide bearing, an outlet elbow, a bottom plate, an inlet, a sealing box, a shaft seal, a foundation frame, foundation bolts, a mechanical seal and all pipelines, valves and motors. The water pump works in such a way that centrifugal force generated when the impeller rotates at a high speed enables the fluid to obtain energy, namely, after the fluid passes through the impeller, both pressure energy and kinetic energy can be improved, so that the fluid can be conveyed to a high place or a distance. At the same time, negative pressure is formed at the inlet of the pump, so that fluid can be continuously sucked. The pump head adopts corrosion-resistant materials, and along with the increase of the number of layers of the spraying device 2, the treatment efficiency is also continuously improved, so that the efficiency of waste gas treatment is greatly improved by the three-layer spraying device.

In the embodiment, a demister 6 is arranged at the upper end inside the tower body, the demister 6 is positioned above the spraying device 2, and the demister 6 is a plate type demister; the demister 6 serves to separate droplets carried by the exhaust gases. The demister is arranged at the upper part of the last spraying device of the tower body. After passing through the circulating slurry spraying device, the waste gas continuously flows through the demister, and liquid drops are remained on the baffle due to the inertia effect. Since the retained droplets also contain solids, there is a risk of fouling the baffles, and periodic cleaning is required to remove the slurry droplets contained therein.

Claims

1. A spray column for exhaust-gas treatment, its characterized in that, including tower body (1), tower body (1) lower extreme lateral wall is equipped with air inlet (11), the upper end of tower body (1) be equipped with tower body (1) inside gas outlet (12) of intercommunication, the inside of tower body (1) is equipped with spray set (2), packing device (3), whirl board device (4), packing device (3) are located the below of spray set (2), whirl board device (4) are located the below of packing device (3), spray set (2) include nozzle (21) and water pipe (22) with nozzle (21) intercommunication, packing device (3) are including packing (31), are used for supporting backup pad (32) of packing (31), are used for preventing packing (31) by rising air blow off clamp plate (33), packing (31) are located between backup pad (32) and clamp plate (33).

2. The spray tower for waste gas treatment according to claim 1, wherein the number of the spray devices (2) is three, the three spray devices (2) are arranged in parallel in three layers, and the spray tower further comprises a filling device (3) and a swirl plate device (4) which are matched with the number of the spray devices (2).

3. The spray tower for exhaust gas treatment according to claim 1, further comprising a spray liquid circulation device (5), the spray liquid circulation device (5) comprising a water reservoir (51) for supplying water to the water pipe (22) and a water pump (52) for supplying water to the water pipe (22), the number of the water pumps (52) being two, the two water pumps (52) being commonly connected to the water pipes (22) of the three spray devices (2).

4. The spray tower for exhaust gas treatment according to claim 1, wherein the number of the nozzles (21) is four, four of the nozzles (21) are arranged in parallel two by two, and the nozzles (21) are hollow cone nozzles.

5. Spray tower for exhaust gas treatment according to claim 1, characterized in that the packing (31) is a polyhedral hollow sphere or raschig ring.

6. Spray tower for exhaust gas treatment according to claim 1, characterized in that the swirl plate arrangement (4) is a windmill blade.

7. The spray tower for waste gas treatment according to claim 1, wherein a demister (6) is arranged at the upper end of the interior of the tower body, the demister (6) is located above the spray device (2), and the demister (6) is a plate type demister.

8. A spray tower for exhaust gas treatment according to claim 3, characterized in that the basin (51) of the spray liquor circulation device (5) is provided with a water inlet pipe (53) and a water outlet pipe (54).

9. A spray tower for exhaust gas treatment according to claim 3, characterized in that the water pump (52) is a monopolar horizontal centrifugal pump.