CN217247952U

CN217247952U - High-efficient wet flue gas desulfurization tower

Info

Publication number: CN217247952U
Application number: CN202123454621.1U
Authority: CN
Inventors: 苏晖
Original assignee: Zhejiang Qianyao Environmental Engineering Co ltd
Current assignee: Zhejiang Qianyao Environmental Engineering Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-08-23
Anticipated expiration: 2031-12-31

Abstract

The utility model relates to a high-efficient wet flue gas desulfurization tower relates to the technical field of desulfurizing tower, and it includes the tower body, be provided with the thick liquid pond in the tower body, spray layer and defroster. A first partition plate and a second partition plate are arranged in the tower body, and divide the tower body into a first cavity, a second cavity and a third cavity by the first partition plate and the second partition plate. Two third division boards are arranged in the second chamber, and the second chamber is divided into a first spray chamber, a second spray chamber and a third spray chamber by the two third division boards. The spraying layer comprises a plurality of first spray heads arranged in the first spraying chamber, the second spraying chamber and the third spraying chamber, and a plurality of through holes are formed in the bottom walls of the first spraying chamber, the second spraying chamber and the third spraying chamber. This application is through being divided into three spray rooms with the second cavity, and when the flue gas passed through, the flue gas loops through first spray room, second spray room and third spray room, removes in following the tower body after the cubic desulfurization to the desulfurization effect of tower body to the flue gas has been improved.

Description

High-efficient wet flue gas desulfurization tower

Technical Field

The application relates to the field of desulfurizing towers, in particular to a high-efficiency wet flue gas desulfurizing tower.

Background

The desulfurization tower is a tower-type device for performing desulfurization treatment on industrial waste gas, and is divided into a dry desulfurization tower and a wet desulfurization tower according to different desulfurization modes. Wherein, the wet desulphurization tower can achieve more than 90 percent of desulphurization effect and is most commonly applied.

At present, the main structure of the wet desulphurization tower comprises a tower body, wherein the tower body is provided with an air inlet and an air outlet, and the tower body is internally provided with a slurry pool, a spraying layer and a demister in sequence from bottom to top. The flue gas enters the tower body from the gas inlet, the spraying layer sprays the desulfurization slurry, and SO in the flue gas ₂ Absorbed by the desulfurization slurry and falls into a slurry pool to be stored along with the action of gravity. Flue gas after the desulfurization passes through the defroster, and the defroster can block the liquid drop and the granule of doping in the flue gas, effectively improves desulfurization efficiency, and the flue gas after spraying layer and defroster is discharged from the gas vent.

In view of the above-mentioned related technologies, the inventor believes that the flue gas can only be desulfurized once in the tower while passing through the spray layer, and the desulfurization effect is to be enhanced.

SUMMERY OF THE UTILITY MODEL

In order to improve the desulfurization effect of desulfurizing tower, this application provides a high-efficient wet flue gas desulfurization tower.

The application provides a high-efficient wet flue gas desulfurization tower adopts following technical scheme:

a high-efficiency wet flue gas desulfurization tower comprises a tower body, wherein a slurry pool, a spraying layer and a demister are sequentially arranged in the tower body from bottom to top, a first partition plate and a second partition plate are arranged in the tower body, and the tower body is divided into a first chamber, a second chamber and a third chamber by the first partition plate and the second partition plate; the slurry pool is positioned in the first chamber, the spraying layer is positioned in the second chamber, and the demister is positioned in the third chamber; two third partition plates are arranged in the second chamber, and divide the second chamber into a first spray chamber, a second spray chamber and a third spray chamber; the first spray chamber is communicated with a second spray chamber, the second spray chamber is communicated with a third spray chamber, and the third spray chamber is communicated with a third cavity; the spraying layer comprises a plurality of first spray heads arranged in the first spraying chamber, the second spraying chamber and the third spraying chamber, and a plurality of through holes communicated with the first cavity are formed in the bottom walls of the first spraying chamber, the second spraying chamber and the third spraying chamber.

By adopting the technical scheme, when the flue gas enters the tower body, the flue gas sequentially enters the first spray chamber, the second spray chamber and the third spray chamber, and finally leaves the tower body after passing through the third chamber. When the flue gas passes through the first spray chamber, the second spray chamber and the third spray chamber, the flue gas is desulfurized by the first spray head positioned in the three spray chambers, then enters the third chamber, and leaves the tower body after removing the attached water drops and particles in the flue gas through the demister. Through the arrangement of the first spray chamber, the second spray chamber and the third spray chamber, the flue gas is desulfurized for three times in the tower body, so that the desulfurization effect of the tower body on the flue gas is improved.

Optionally, a first communication port for communicating with the second spray chamber is formed in the first spray chamber, and the first communication port is located on one side of the first spray chamber close to the third chamber; and a second communicating port communicated with the third spray chamber is formed in the second spray chamber and is positioned on one side, far away from the third chamber, of the second spray chamber.

Through adopting above-mentioned technical scheme, the setting of first intercommunication mouth and second intercommunication mouth position has prolonged the time of flue gas through three spray rooms as much as possible to the desulfurization time has been prolonged, and then has further improved the desulfurization effect of tower body to the flue gas.

Optionally, a diversion ring is arranged in each of the first spray chamber and the third spray chamber, and the diversion ring is located on one side of the first spray head away from the third chamber.

The edge of the spraying range of the spray head is generally low in spraying strength, and the flue gas positioned in the part is poor in desulfurization effect. Through adopting above-mentioned technical scheme, the water conservancy diversion ring prevents that the flue gas from leaving from the edge of first shower nozzle for the flue gas passes through from the center that sprays of first shower nozzle all the time, has indirectly improved the desulfurization effect of tower body.

Optionally, the aperture of the through hole on the bottom wall of the third spray chamber is larger than the apertures of the through holes on the bottom walls of the first spray chamber and the second spray chamber.

Through adopting above-mentioned technical scheme, when the defroster used need clear up after a period, the granule in the defroster can be followed the defroster and dropped, passes through the third spray chamber along with the rivers, falls into the thick liquid pond in the end. The through-hole setting on the third spray chamber diapire is great, can reduce the possibility that the through-hole on the third spray chamber diapire was blockked up to the granule.

Optionally, the first nozzle is an atomizing nozzle.

Through adopting above-mentioned technical scheme, atomizer can make the desulfurization thick liquid be vaporific blowout, has increased the specific surface area of desulfurization thick liquid to increase the area of contact of desulfurization thick liquid and flue gas, improved desulfurization effect.

Optionally, the second partition plate is arranged obliquely downward from a side close to the first spray chamber to a side of the second partition plate close to the third spray chamber.

Through adopting above-mentioned technical scheme, the slope of second division board sets up, can make the liquid drop that drops from the defroster can flow into the third spray room, flows into the thick liquid pond from the third spray room in, has reduced the granule in the liquid drop and has piled up the possibility on the second division board.

Optionally, a plurality of second nozzles used for cleaning the second partition plates are arranged on the inner side wall of the tower body.

Through adopting above-mentioned technical scheme, the second shower nozzle can be with the granule that drops on the second division board towards the third spray chamber, prevents that the granule that drops from the defroster from piling up on the second division board.

Optionally, the demister is composed of a plurality of corrugated plates, and a plurality of grooves are arranged on the corrugated plates.

Through adopting above-mentioned technical scheme, the area of contact of wave plate and flue gas has been increased in the setting of recess, makes subsidiary steam liquefy in the recess in the flue gas to the defogging effect of defroster has been improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. in the application, the first spray chamber, the second spray chamber and the third spray chamber are arranged, so that the flue gas enters the tower body to be desulfurized for three times, and the desulfurization effect of the tower body on the flue gas is improved;

2. in this application further sets up, through arranging of first intercommunication mouth and second intercommunication mouth position, prolonged the time that the flue gas passes through three spray room to the desulfurization effect of tower body to the flue gas has further been improved.

Drawings

FIG. 1 is a schematic diagram of a desulfurization tower in an embodiment of the present application;

FIG. 2 is a sectional view of a desulfurizing tower in an embodiment of the present application;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a sectional view of a desulfurizing tower according to an embodiment of the present invention, showing the relationship between the sizes of the through holes formed in the bottom wall of the third shower chamber and the through holes formed in the bottom walls of the first and second shower chambers.

Description of reference numerals: 1. a tower body; 2. a slurry tank; 3. a spray layer; 31. a first nozzle; 4. a demister; 41. a corrugated plate; 5. a first partition plate; 6. a second partition plate; 7. a third partition plate; 8. a flow guide ring; 9. a second nozzle; 101. a first chamber; 102. a second chamber; 103. a third chamber; 104. a first spray chamber; 105. a second spray chamber; 106. a third spray chamber; 107. a through hole; 108. a first communication port; 109. a second communication port; 110. a groove; 111. a smoke inlet; 112. a smoke outlet; 113. and (7) mounting frames.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a high-efficient wet flue gas desulfurization tower. Referring to fig. 1 and 2, the desulfurization tower includes a tower body 1, and the tower body 1 is provided with a smoke inlet 111 and a smoke outlet 112. A slurry pool 2, a spraying layer 3 and a demister 4 are sequentially and fixedly arranged in the tower body 1 from bottom to top.

Referring to fig. 2 and 3, the demister 4 is composed of a plurality of corrugated plates 41, and a plurality of grooves 110 are formed on the corrugated plates 41. In the embodiment of the present application, the groove 110 is formed by die casting. The arrangement of the grooves 110 can increase the contact area between the flue gas and the corrugated plate 41, thereby promoting the liquefaction of the water vapor attached to the flue gas in the grooves 110 and improving the demisting effect of the demister 4.

Referring to fig. 2, a first partition plate 5 and a second partition plate 6 are fixedly connected to the inside of the tower body 1 in a direction perpendicular to the height direction of the tower body 1. The first partition plate 5 and the second partition plate 6 divide the interior of the tower body 1 into a first chamber 101, a second chamber 102 and a third chamber 103 from bottom to top in sequence. The slurry pool 2 is positioned in the first chamber 101, the spraying layer 3 is positioned in the second chamber 102, and the demister 4 is positioned in the third chamber 103. A plurality of second nozzles 9 used for cleaning the second partition plates 6 are fixedly arranged on the inner side wall of the tower body 1, and the second nozzles 9 are positioned in the third chamber 103.

Referring to fig. 2, two third partition plates 7 are fixedly connected to the second chamber 102 in a direction perpendicular to the second partition plate 6, and the two third partition plates 7 divide the second chamber 102 into a first shower chamber 104, a second shower chamber 105, and a third shower chamber 106. The second partition plate 6 is provided obliquely downward from the side close to the first shower chamber 104 toward the side close to the third shower chamber 106 of the second partition plate 6.

Referring to fig. 2, a first communication port 108 is formed on one of the third partition plates 7, the first spray chamber 104 is communicated with the second spray chamber 105 through the first communication port 108, and the first communication port 108 is located on a side of the first spray chamber 104 close to the third chamber 103. The other third partition plate 7 is provided with a second communicating port 109, the second spray chamber 105 and the third spray chamber 106 are communicated through the second communicating port 109, and the second communicating port 109 is located on one side of the second spray chamber 105 far away from the third chamber 103. The third shower 106 communicates with the third chamber 103.

Referring to fig. 4, the bottom walls of the first spray chamber 104, the second spray chamber 105 and the third spray chamber 106 are all provided with a plurality of through holes 107, wherein the aperture of the through hole 107 on the bottom wall of the third spray chamber 106 is larger than the aperture of the through hole 107 on the bottom walls of the first spray chamber 104 and the second spray chamber 105. The larger the diameter of the through hole 107 in the bottom wall of the third shower chamber 106, the possibility that the through hole 107 is clogged with particles falling from the demister 4 can be reduced.

Referring to fig. 2, the spray layer 3 is a plurality of first spray heads 31 disposed in the first spray chamber 104, the second spray chamber 105, and the third spray chamber 106, and the first spray heads 31 are configured as atomization spray heads. The second chamber 102 is horizontally and fixedly connected with a mounting frame 113, and the first nozzles 31 are all fixedly mounted on the mounting frame 113. The atomizing spray head can increase the specific surface area of the desulfurization slurry sprayed out of the spray head, so that the contact area of the desulfurization slurry and the flue gas is increased, and the desulfurization effect is improved.

Referring to fig. 2, the inner side walls of the first spray room 104 and the third spray room 106 are both provided with a flow guide ring 8, the flow guide rings 8 are respectively arranged around the inner side walls of the first spray room 104 and the third spray room 106, and the flow guide ring 8 is located on one side of the first spray head 31 away from the third spray room 103. The setting of water conservancy diversion ring 8 can guide the flue gas all the time through the center of spraying of first shower nozzle 31, ensures to carry out abundant contact between first shower nozzle 31 spun desulfurization thick liquid and the flue gas, ensures desulfurization effect.

The implementation principle of the high-efficiency wet flue gas desulfurization tower in the embodiment of the application is as follows: when entering the tower body 1 from the smoke inlet 111, the flue gas passes through the first spray chamber 104, the second spray chamber 105 and the third spray chamber 106 in sequence, the first spray nozzles 31 in the three spray chambers spray desulfurization slurry on the flue gas, and the desulfurization slurry desulfurizes the flue gas and falls into the slurry tank from the through hole 107. The flue gas passes through three spray chambers, enters into the third chamber 103, passes through the demister 4, and the liquid drops and particles attached in the flue gas are remained on the corrugated plate 41, and the flue gas leaves the tower body 1 from the smoke outlet 112 after passing through the demister 4.

When the flue gas passes through the first spray chamber 104, the second spray chamber 105 and the third spray chamber 106, three times of desulfurization are performed, and therefore the desulfurization effect of the tower body 1 is effectively improved.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a high-efficient wet flue gas desulfurization tower, includes tower body (1), slurry tank (2), spray layer (3) and defroster (4), its characterized in that have set gradually from bottom to top in tower body (1): a first partition plate (5) and a second partition plate (6) are arranged in the tower body (1), and the first partition plate (5) and the second partition plate (6) divide the tower body (1) into a first chamber (101), a second chamber (102) and a third chamber (103); the slurry pool (2) is positioned in a first chamber (101), the spraying layer (3) is positioned in a second chamber (102), and the demister (4) is positioned in a third chamber (103); two third partition plates (7) are arranged in the second cavity (102), and the second cavity (102) is divided into a first spray room (104), a second spray room (105) and a third spray room (106) by the two third partition plates (7); the first spray chamber (104) is communicated with a second spray chamber (105), the second spray chamber (105) is communicated with a third spray chamber (106), and the third spray chamber (106) is communicated with a third chamber (103); the spray layer (3) comprises a plurality of first spray heads (31) arranged in a first spray room (104), a second spray room (105) and a third spray room (106), and a plurality of through holes (107) communicated with the first cavity (101) are formed in the bottom walls of the first spray room (104), the second spray room (105) and the third spray room (106).

2. The high-efficiency wet flue gas desulfurization tower of claim 1, wherein: a first communication port (108) communicated with the second spray chamber (105) is formed in the first spray chamber (104), and the first communication port (108) is located on one side, close to the third chamber (103), of the first spray chamber (104); and a second communicating port (109) communicated with the third spray chamber (106) is formed in the second spray chamber (105), and the second communicating port (109) is positioned on one side, away from the third chamber (103), of the second spray chamber (105).

3. The high-efficiency wet flue gas desulfurization tower of claim 1, wherein: flow guide rings (8) are arranged in the first spray chamber (104) and the third spray chamber (106), and the flow guide rings (8) are positioned on one side, away from the third chamber (103), of the first spray head (31).

4. The high-efficiency wet flue gas desulfurization tower of claim 1, wherein: the aperture of the through hole (107) on the bottom wall of the third spray room (106) is larger than the aperture of the through hole (107) on the bottom walls of the first spray room (104) and the second spray room (105).

5. The high-efficiency wet flue gas desulfurization tower of claim 1, wherein: the first spray head (31) is an atomizing spray head.

6. The high-efficiency wet flue gas desulfurization tower of claim 1, wherein: the second separation plate (6) is obliquely and downwards arranged from one side close to the first spray room (104) to one side, close to the third spray room (106), of the second separation plate (6).

7. The high efficiency wet flue gas desulfurization tower of claim 6, wherein: and a plurality of second nozzles (9) used for cleaning the second partition plates (6) are arranged on the inner side wall of the tower body (1).

8. The high-efficiency wet flue gas desulfurization tower of claim 1, wherein: the demister (4) is composed of a plurality of corrugated plates (41), and a plurality of grooves (110) are formed in each corrugated plate (41).