CN216825601U

CN216825601U - Desulfurization smoke prevention equipment

Info

Publication number: CN216825601U
Application number: CN202122992372.5U
Authority: CN
Inventors: 林希
Original assignee: Hefei Cement Research and Design Institute Co Ltd
Current assignee: Hefei Cement Research and Design Institute Co Ltd
Priority date: 2021-11-27
Filing date: 2021-11-27
Publication date: 2022-06-28
Anticipated expiration: 2031-11-27

Abstract

The utility model discloses desulfurization smoke abatement equipment, which relates to the technical field of flue gas treatment and comprises a tower body, wherein a slurry pool, a first baffle plate layer, a first buffer packing layer, a first spray layer and a demister are sequentially arranged in the tower body from bottom to top, an air inlet pipe is arranged on the tower body and is communicated with an air distribution pipe positioned in the slurry pool, a plurality of air outlet holes are formed in the wall of the air distribution pipe, the first spray layer comprises a first spray pipe and a plurality of first spray heads arranged on the first spray pipe, the first spray pipe is communicated with the slurry pool through the liquid outlet pipe, slurry can be sprayed to the first buffer packing layer through each first spray head, a liquid film is formed on the first buffer packing layer, an air outlet pipe is arranged at the top of the tower body, and the air outlet pipe is positioned above the demister. The desulfurization and smoke abatement equipment provided by the utility model improves the smoke absorption effect.

Description

Desulfurization smoke prevention equipment

Technical Field

The utility model relates to the technical field of flue gas treatment, in particular to a desulfurization and smoke abatement device.

Background

China is a large coal using country, and combustible substances are combusted in a combustor to generate smoke, so that the smoke is one of main emissions of cement plants. Because the flue gas usually contains a large amount of nitrogen oxide NO _xSulfide SO₂And dust, which on the one hand can cause acid rain with strong corrosivity, and on the other hand, the discharged dust can cause atmospheric pollution and harm health, so that the smoke gas must be discharged before being dischargedThe desulfurization, denitrification and dust removal treatment are needed.

Currently, industrial waste gas is generally desulfurized by a desulfurizing tower, the desulfurizing tower generally adopts a spraying mode to carry out desulfurization treatment, absorbent slurry is sprayed downwards from the top of the desulfurizing tower through atomization in an absorption tower, flue gas flows upwards from the bottom of the desulfurizing tower and contacts the absorbent slurry, and the absorbent slurry absorbs sulfur dioxide in the flue gas. The contact time is short and the absorption rate of sulfur dioxide is low when the sulfur dioxide and the absorbent slurry are mixed in the mode, and the absorption rate of the sulfur dioxide is generally ensured by improving the height of the desulfurizing tower, so that the desulfurizing tower is large in size and high in cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide desulfurization and smoke abatement equipment, which solves the problems in the prior art and improves the flue gas absorption effect.

In order to achieve the purpose, the utility model provides the following scheme:

the utility model provides desulfurization and smoke abatement equipment which comprises a tower body, wherein a slurry pool, a first baffle plate layer, a first buffer packing layer, a first spraying layer and a demister are sequentially arranged in the tower body from bottom to top, an air inlet pipe is arranged on the tower body and is communicated with an air distribution pipe positioned in the slurry pool, a plurality of air outlet holes are formed in the pipe wall of the air distribution pipe, the first spraying layer comprises a first spraying pipe and a plurality of first spray heads arranged on the first spraying pipe, the first spraying pipe is communicated with the slurry pool through an outlet pipe, slurry can be sprayed to the first buffer packing layer through the first spray heads, a liquid film is formed on the first buffer packing layer, an air outlet pipe is arranged at the top of the tower body, and the air outlet pipe is positioned above the demister.

Preferably, still include by the lower supreme second baffling plate layer, second buffering packing layer and the second that sets gradually and spray the layer, the second baffling plate layer the second buffering packing layer with the second sprays the layer and is located first spray the layer with between the defroster, the second spray the layer include the second shower and set up in a plurality of second shower nozzles on the second shower, the second shower passes through the drain pipe with thick liquid pond intercommunication, through each the second shower nozzle can to second buffering packing layer sprays thick liquid and form the liquid film on the second buffering packing layer.

Preferably, the surface of the first buffer filler layer is provided with a plurality of first micropores distributed in an array, and the slurry can form a liquid film on the surface of the first buffer filler layer under the action of surface tension.

Preferably, a plurality of second micropores distributed in an array are arranged on the surface of the second buffer filler layer, the pore diameter of each second micropore is smaller than that of each first micropore, and the slurry can form a liquid film on the surface of the second buffer filler layer under the action of surface tension.

Preferably, the first baffle plate layer comprises a plurality of first baffle plates arranged side by side, and the plurality of first baffle plates are obliquely arranged and are parallel to each other.

Preferably, the second baffle layer includes a plurality of second baffles arranged side by side, and the plurality of second baffles are obliquely arranged and parallel to each other.

Preferably, a drain pipe is arranged at the bottom of the slurry tank.

Preferably, a driving pump is arranged on the liquid outlet pipe, and slurry can be conveyed to the first spray pipe and the second spray pipe through the driving pump and is sprayed out through the first spray head and the second spray head respectively.

Preferably, the gas distribution pipe is spirally arranged in the slurry tank in a plane, and the plurality of gas outlets are uniformly distributed on the pipe wall of the gas distribution pipe.

Preferably, still be equipped with the liquid level indicator pipe on the tower body, the bottom of liquid level indicator pipe with thick liquid bottom of the pool portion intercommunication, the top of liquid level indicator pipe with inside the intercommunication of tower body, the gas distribution pipe is located between the bottom and the top of liquid level indicator pipe.

Compared with the prior art, the utility model has the following technical effects:

the desulfurization smoke abatement equipment provided by the utility model has the advantages that the flue gas enters from the gas inlet pipe, a part of the flue gas directly contacts and is absorbed by the slurry in the slurry tank, the rest part of the waste water passes through the first baffle plate layer and the first buffer filler layer upwards, and after the spraying action of the first spraying layer, the flue gas is discharged from an air outlet pipe through a demister, the flue gas is subjected to primary absorption treatment in a slurry tank, then the flue gas is blocked and guided under the action of a first baffle plate layer, because the slurry forms a liquid film on the first buffer filler layer, the flue gas can fully contact with the liquid film when passing through the first buffer filler layer, thereby absorbing the smoke again, and the smoke flowing upwards from the first buffer packing layer can further absorb the smoke through the spraying effect of the first spraying layer, thereby improved the absorption effect of flue gas, carried out the defogging to the flue gas through the defroster at last, discharged from the outlet duct.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a desulfurization and smoke abatement apparatus provided by the present invention;

in the figure: 100-desulfurization smoke abatement equipment, 1-tower body, 2-slurry pool, 3-first baffle plate layer, 4-first buffer packing layer, 5-first spray layer, 6-demister, 7-air inlet pipe, 8-air distribution pipe, 9-air outlet, 10-first spray pipe, 11-first spray nozzle, 12-liquid outlet pipe, 13-air outlet pipe, 14-second baffle plate layer, 15-second buffer packing layer, 16-second spray layer, 17-second spray pipe, 18-second spray nozzle, 19-first baffle plate, 20-second baffle plate, 21-sewage discharge pipe, 22-driving pump and 23-liquid level indicator.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof.

As shown in fig. 1, this embodiment provides a desulfurization smoke abatement equipment 100, including tower body 1, be equipped with slurry pool 2 by lower supreme in proper order in tower body 1, first baffling board layer 3, first buffer packing layer 4, first spraying layer 5 and defroster 6, be equipped with intake pipe 7 on the tower body 1, intake pipe 7 communicates with the gas distribution pipe 8 that is located slurry pool 2, be equipped with a plurality of ventholes 9 on the 8 pipe walls of gas distribution pipe, first spraying layer 5 includes first shower 10 and sets up a plurality of first shower nozzles 11 on first shower 10, first shower 10 passes through drain pipe 12 and slurry pool 2 intercommunication, can spray the thick liquid and form on first buffer packing layer 4 to first buffer packing layer 4 through each first shower nozzle 11, tower body 1 top is equipped with outlet duct 13, outlet duct liquid film 13 is located defroster 6 tops.

The flue gas enters from the air inlet pipe 7, part of the flue gas directly contacts with the slurry in the slurry tank 2 to be absorbed, the rest part of the flue gas upwards passes through the first baffle plate layer 3 and the first buffer packing layer 4 and is discharged from the air outlet pipe 13 through the demister 6 after being sprayed by the first spraying layer 5, the flue gas is preliminarily absorbed in the slurry tank 2 and then is blocked and guided under the action of the first baffle plate layer 3, because the slurry forms a liquid film on the first buffer packing layer 4, the flue gas can fully contact with the liquid film when passing through the first buffer packing layer 4, the flue gas is absorbed again, moreover, the flue gas flowing upwards from the first buffer packing layer 4 can also pass through the spraying action of the first spraying layer 5 to be further absorbed, the absorption effect of the flue gas is improved, and finally, the flue gas is demisted through the demister 6, and is discharged from the air outlet pipe.

In this embodiment, still include the second baffling layer 14, second buffering packing layer 15 and the second layer 16 that sprays that sets gradually from bottom to top, second baffling layer 14, second buffering packing layer 15 and second spray layer 16 are located the first layer 5 and the defroster 6 that sprays between, second sprays layer 16 and includes second shower 17 and sets up a plurality of second shower nozzles 18 on second shower 17, second shower 17 passes through drain 12 and slurry tank 2 intercommunication, can spray the thick liquid to second buffering packing layer 15 and form on second buffering packing layer 15 through each second shower nozzle 18. After the flue gas sprays the effect through first layer 5 of spraying, block the water conservancy diversion to the flue gas under the effect of second baffle layer 14, then fully react with the liquid film that forms on second buffering packing layer 15, under the spraying effect of second shower nozzle 18, further absorb the processing to the flue gas to further improve flue gas absorption effect.

In this embodiment, the surface of the first buffer filler layer 4 is provided with a plurality of first micropores distributed in an array, and the slurry can form a liquid film on the surface of the first buffer filler layer 4 under the action of surface tension. The flue gas is split into the small air current of stranded and respectively with the liquid film contact reaction on each first micropore when first buffering packing layer 4, and the contact absorption is more abundant, and simultaneously, liquid film surface tension need be overcome to the flue gas to can play certain cushioning effect to the flue gas, improve the contact time of flue gas and liquid film, also can improve flue gas absorption effect.

In this embodiment, the surface of the second buffer filler layer 15 is provided with a plurality of second micropores distributed in an array, the pore diameter of the second micropores is smaller than that of the first micropores, and the slurry can form a liquid film on the surface of the second buffer filler layer 15 under the action of surface tension. After the absorption treatment through first buffer packing layer 4 and first layer 5 that sprays, the flue gas is further split into littleer stranded air current to fully react with the liquid film on second buffer packing layer 15 surface, further absorb the flue gas and handle, improve the flue gas absorption effect.

In this embodiment, the first baffle layer 3 includes a plurality of first baffles 19 arranged side by side, and the plurality of first baffles 19 are arranged obliquely and parallel to each other. The flue gas upwards flows, and liquid drop smoke and dust in the flue gas bumps with first baffling board 19, greatly increased stop to liquid drop and smoke and dust catch the chance to reduce the liquid measure in the flue gas, can adjust the inclination of each first baffling board 19 according to actual conditions, with the flue gas defogging effect that reaches different degrees.

In this embodiment, the second baffle layer 14 includes a plurality of second baffles 20 arranged side by side, and the plurality of second baffles 20 are obliquely arranged and parallel to each other. After the flue gas passes through the first baffle plate 19, the first buffer packing layer 4 and the first spraying layer 5, residual liquid drops and smoke dust in the flue gas collide with the second baffle plate 20, and the liquid drops and the smoke dust are further blocked and captured, so that the liquid carrying amount in the flue gas is reduced, the inclination angle of each second baffle plate 20 can be adjusted according to actual conditions, and the flue gas demisting effect with different degrees is achieved.

In this embodiment, the bottom of the slurry tank 2 is provided with a drain pipe 21, and impurities such as precipitated smoke dust can be discharged through the drain pipe 21.

In this embodiment, be equipped with driving pump 22 on drain pipe 12, can carry the thick liquid to first shower 10 and second shower 17 through driving pump 22 to spout through first shower nozzle 11 and second shower nozzle 18 respectively, simple structure is convenient for spray control.

In this embodiment, the gas distribution pipe 8 is arranged in the slurry tank 2 in a plane spiral manner, and the plurality of gas outlet holes 9 are uniformly distributed on the pipe wall of the gas distribution pipe 8, so that the flue gas is more fully contacted with the slurry, and the flue gas absorption effect is improved.

In this embodiment, still be equipped with liquid level indicator 23 on the tower body 1, the bottom and the 2 bottoms in thick liquid pond of liquid level indicator 23 communicate, the top and the 1 inside intercommunication of tower body of liquid level indicator 23, gas distribution pipe 8 is located between the bottom and the top of liquid level indicator 23, be convenient for observe the liquid level in the thick liquid pond 2 through liquid level indicator 23 in order in time to carry out liquid feeding or flowing back, make the liquid level be higher than gas distribution pipe 8 all the time, guarantee that the flue gas can get into in the thick liquid after 8 discharges of gas distribution pipe.

The principle and the implementation mode of the utility model are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the foregoing, the description is not to be taken in a limiting sense.

Claims

1. A desulfurization and smoke abatement device is characterized in that: the tower comprises a tower body, be equipped with thick liquid pond, first baffling plate layer, first buffering packing layer, first spray layer and defroster in proper order by supreme down in the tower body, be equipped with the intake pipe on the tower body, the intake pipe with be located cloth pipe intercommunication in the thick liquid pond, be equipped with a plurality of ventholes on the cloth pipe wall, first spray layer include first shower and set up in a plurality of first shower nozzles on the first shower, first shower pass through the drain pipe with thick liquid pond intercommunication, through each first shower can to first buffering packing layer sprays the thick liquid film and form on the first buffering packing layer, the tower body top is equipped with the outlet duct, the outlet duct is located the defroster top.

2. The desulfurization smoke abatement apparatus of claim 1, wherein: still include by the lower supreme second baffling plate layer, second buffering packing layer and the second that sets gradually and spray the layer, the second baffling plate layer the second buffering packing layer with the second sprays the layer and is located the first layer that sprays with between the defroster, the second spray the layer include the second shower and set up in a plurality of second shower nozzles on the second shower, the second shower passes through the drain pipe with thick liquid pond intercommunication, through each the second shower nozzle can to second buffering packing layer sprays the thick liquid and form the liquid film on the second buffering packing layer.

3. The desulfurization smoke abatement apparatus of claim 2, wherein: the surface of the first buffer filler layer is provided with a plurality of first micropores distributed in an array manner, and the slurry can form a liquid film on the surface of the first buffer filler layer under the action of surface tension.

4. The desulfurization smoke abatement apparatus of claim 3, wherein: the surface of the second buffer filler layer is provided with a plurality of second micropores distributed in an array manner, the pore diameter of each second micropore is smaller than that of each first micropore, and the slurry can form a liquid film on the surface of the second buffer filler layer under the action of surface tension.

5. The desulfurization smoke abatement apparatus of claim 1, wherein: the first baffle layer comprises a plurality of first baffles arranged side by side, and the first baffles are obliquely arranged and are parallel to each other.

6. The desulfurization smoke abatement apparatus of claim 2, wherein: the second baffle layer comprises a plurality of second baffles which are arranged side by side, and the second baffles are obliquely arranged and are parallel to each other.

7. The desulfurization smoke abatement apparatus of claim 1, wherein: and a sewage discharge pipe is arranged at the bottom of the slurry pool.

8. The desulfurization smoke abatement apparatus of claim 2, wherein: and a driving pump is arranged on the liquid outlet pipe, and slurry can be conveyed to the first spray pipe and the second spray pipe through the driving pump and is sprayed out through the first spray head and the second spray head respectively.

9. The desulfurization smoke abatement apparatus of claim 1, wherein: the gas distribution pipe is arranged in the slurry tank in a plane spiral manner, and the plurality of gas outlets are uniformly distributed on the pipe wall of the gas distribution pipe.

10. The desulfurization smoke abatement apparatus of claim 1, wherein: still be equipped with liquid level indicator on the tower body, liquid level indicator's bottom with thick liquid bottom of the pool portion intercommunication, liquid level indicator's top with the inside intercommunication of tower body, the gas distribution pipe is located between liquid level indicator's bottom and the top.