CN201711084U - Wet flue gas desulphurization tower - Google Patents

Wet flue gas desulphurization tower Download PDF

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Publication number
CN201711084U
CN201711084U CN2010201973176U CN201020197317U CN201711084U CN 201711084 U CN201711084 U CN 201711084U CN 2010201973176 U CN2010201973176 U CN 2010201973176U CN 201020197317 U CN201020197317 U CN 201020197317U CN 201711084 U CN201711084 U CN 201711084U
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CN
China
Prior art keywords
flue gas
demister
cooling device
wet
desulphurization tower
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2010201973176U
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Chinese (zh)
Inventor
王和荣
张宏福
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XINZHONGTIAN ENVIRONMENTAL PROTECTION CO., LTD.
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ZHONGTIAN ENVIRONMENTAL PROTECTION INDUSTRIAL GROUP
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Filing date
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Priority to CN2010201973176U priority Critical patent/CN201711084U/en
Application granted granted Critical
Publication of CN201711084U publication Critical patent/CN201711084U/en
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Abstract

The utility model provides a wet flue gas desulphurization tower, which comprises a desulphurization tower body, a flue gas desulphurization device and a flue gas demister. A flue gas pre-spray cooling device is arranged on the outer side wall of the desulphurization tower body, the flue gas pre-spray cooling device is tilted upwards and forms the included angle of 60 degrees with the outer wall of the desulphurization tower body, spray pipes are disposed in the flue gas pre-spray cooling device, the flue gas desulphurization device and the flue gas demister are sequentially arranged in the desulphurization tower body and above the flue gas pre-spray cooling device, and a demister back flushing device is arranged between the flue gas desulphurization tower and the flue gas demister. The wet flue gas desulphurization tower has stronger temperature resistance and corrosion resistance, the SO2 removal rate is equal to or higher than 98%, the HC1 removal rate is equal to or higher than 98%, and flue gas discharged from the wet flue gas desulphurization tower is low in water content and small in corrosiveness.

Description

Wet flue gas desulfurization tower
Technical field
The utility model relates to a kind of fume desulfurizing tower, relates in particular to a kind of wet flue gas desulfurization tower that danger wastes burns the flue gas of being arranged that is used to handle.
Background technology
Contain a large amount of sour gas (as HCl, HF, SO in the flue gas that the burning danger wastes produces XDeng), dust, heavy metal be Ji pollutants such as bioxin need purify control to flue gas.It is spray column that the desulfurizing tower that is used for wet method fume desulfurizing system at present uses maximum, its principle of absorption be by absorbent slurry in the absorption tower through the spray atomizing, spray mixes with the flue gas that makes progress at the bottom of tower from the top down, the absorption acidic gas in flue gas.Because the temperature of burning the flue gas itself that danger wastes produces is than higher, and the gas componant more complicated in the flue gas, temperature tolerance, corrosion resistance and the deacidification efficiency of desulfurizing tower all there is the higher requirement of ratio.
The utility model content
The purpose of this utility model is to provide a kind of wet flue gas desulfurization tower that danger wastes burns the flue gas of being arranged that is used to handle.
For achieving the above object, the utility model is taked following technical scheme:
A kind of wet flue gas desulfurization tower, this desulfurizing tower comprises desulfurizing tower body, flue gas desulfur device and flue gas demister, the lateral wall of desulfurizing tower body is provided with the pre-spraying cooling device of flue gas, the pre-spraying cooling device of this flue gas is tilted to and is 60 ° of angles with the lateral wall of desulfurizing tower body, is provided with shower in the pre-spraying cooling device of this flue gas; Flue gas desulfur device and flue gas demister are successively set in the desulfurizing tower, the pre-spraying cooling device of flue gas top, are provided with the demister back purge system between this flue gas desulfur device and the flue gas demister.
Described flue gas desulfur device is a NaOH solution spraying device, and this spray equipment comprises at least two showers that are provided with at interval.
Described shower is provided with several nozzles.
Described flue gas demister adopts baffle type mist eliminator, is the polypropylene material.
Described demister back purge system is provided with several nozzles.
Be positioned at the lateral wall of described desulfurizing tower body, the pre-spraying cooling device of flue gas below is provided with overfall, refluxing opening and sewage draining exit.
The utility model has the advantages that:
Wet flue gas desulfurization tower of the present utility model makes desulfurizing tower have higher temperature tolerance by the default pre-spraying cooling device of flue gas before desulfurizing tower, can accept temperature at 160 ℃; Flue gas to complicated especially to containing the flue gas of S, Cl, has very strong corrosion resistance; The utility model is a spray liquid by spraying layer reasonably being set and adopting the splendid NaOH solution of desulfurized effect, makes SO 2Clearance 〉=98%, HCl clearance 〉=98%; The utility model is by being provided with demister, and water content is little in the feasible flue gas of discharging, and corrosivity is little.
Description of drawings
Fig. 1 is the schematic diagram of the utility model wet flue gas desulfurization tower.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, structural representation for the utility model wet flue gas desulfurization tower, on the lateral wall of desulfurizing tower body 11, be provided with the pre-spraying cooling device 1 of flue gas, the pre-spraying cooling device 1 of this flue gas opening and be 60 ° of angles obliquely in the utility model wet flue gas desulfurization tower with the lateral wall of desulfurizing tower body 11, its opening is gas approach, is provided with jet pipe 2 in the pre-spraying cooling device 1 of this flue gas; The direction that the nozzle 3 that this jet pipe 2 is provided with enters over against flue gas, the position is set can adjusts as required of jet pipe 2 contacts with flue gas 100% with the liquid by nozzle 3 ejections and is advisable.In desulfurizing tower, above the pre-spraying cooling device 1 of flue gas, be provided with flue gas desulfur device, this flue gas desulfur device is the NaOH solution spraying pipe 6 that is provided with at interval, this shower 6 is provided with several swivel nozzles that Open Side Down 5, this flue gas desulfur device top is provided with flue gas demister 10, be provided with demister back purge system 7 between this flue gas demister 10 and flue gas desulfur device, this demister back purge system 7 is provided with several swivel nozzles 8.Be provided with overfall 4 on position relative with the pre-spraying cooling device of flue gas 1 on the sidewall of desulfurizing tower body 11, this overfall 4 is just fair with lower ends of the pre-spraying cooling device of flue gas.The below of the pre-spraying cooling device 1 of flue gas is provided with refluxing opening 12 and sewage draining exit 13 successively.
This wet flue gas desulfurization tower in use, flue gas is entered by the gas approach on the pre-spraying cooling device of flue gas, after its spraying cooling water cooling of warp-wise, its temperature is reduced to about 100 ℃, cuts sth. askew then to enter the desulfurizing tower main body, in flue gas, spray NaOH solution by NaOH solution spraying pipe, flue gas is bottom-up, NaOH solution from up to down, both impact, contact, react, when flue gas is carried out desulfurization, make that also flue-gas temperature further reduces.Because the nozzle on the NaOH solution spraying pipe adopts swivel nozzle, can utilize the reaction force of the NaOH solution of ejection, promote the nozzle rotation, thereby make NaOH solution contact with flue gas 100%, reach the effect of abundant desulfurization.Contain large quantity of moisture in the flue gas after the desulfurization, corrode the tower external flue easily, so at smoke outlet demister is set, demister adopts baffle type mist eliminator, selects enhancement mode polypropylene material for use.By the demister back purge system is set below demister, demister is cleaned in addition, keep demister to have higher demist efficient to demister spray running water.Droplet concentration is less than 60mg/NM in the flue gas after demist 3, reduced the corrosion of flue gas to flue.
Flue gas is after the desulfurization of NaOH solution, and the part product is back to solution at the bottom of the tower, when the position of solution rises to the overfall of the pre-spraying cooling device of flue gas below setting, just overflows from overfall; The solution that obtains also can be connected to NaOH solution spraying pipe from overfall and refluxing opening by pipeline and recycle.
This wet flue gas desulfurization tower is in actual application, and wherein the quantity of the position of the quantity of the spraying layer in the pre-spraying cooling device of flue gas, flue gas desulfur device and the back purge system, spraying layer setting and shower top nozzle all can be adjusted according to the kind of sour gas in the flue gas and concentration etc.

Claims (6)

1. wet flue gas desulfurization tower, this desulfurizing tower comprises desulfurizing tower body, flue gas desulfur device and flue gas demister, it is characterized in that, the lateral wall of desulfurizing tower body is provided with the pre-spraying cooling device of flue gas, the pre-spraying cooling device of this flue gas is tilted to and is 60 ° of angles with the lateral wall of desulfurizing tower body, is provided with shower in the pre-spraying cooling device of this flue gas; Flue gas desulfur device and flue gas demister are successively set in the desulfurizing tower, the pre-spraying cooling device of flue gas top, are provided with the demister back purge system between this flue gas desulfur device and the flue gas demister.
2. wet flue gas desulfurization tower according to claim 1 is characterized in that, described flue gas desulfur device is a NaOH solution spraying device, and this spray equipment comprises at least two showers that are provided with at interval.
3. wet flue gas desulfurization tower according to claim 2 is characterized in that described shower is provided with several nozzles.
4. wet flue gas desulfurization tower according to claim 1 is characterized in that, described flue gas demister adopts baffle type mist eliminator, is the polypropylene material.
5. wet flue gas desulfurization tower according to claim 1 is characterized in that, described demister back purge system is provided with several nozzles.
6. wet flue gas desulfurization tower according to claim 1 is characterized in that, is positioned at the lateral wall of described desulfurizing tower body, and the pre-spraying cooling device of flue gas below is provided with overfall, refluxing opening and sewage draining exit.
CN2010201973176U 2010-05-20 2010-05-20 Wet flue gas desulphurization tower Expired - Lifetime CN201711084U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201973176U CN201711084U (en) 2010-05-20 2010-05-20 Wet flue gas desulphurization tower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201973176U CN201711084U (en) 2010-05-20 2010-05-20 Wet flue gas desulphurization tower

Publications (1)

Publication Number Publication Date
CN201711084U true CN201711084U (en) 2011-01-19

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103611713A (en) * 2013-11-08 2014-03-05 常州大学 Cleaning device and cleaning method for dirt at top of distilling tower and whole distilling tower
CN104128106A (en) * 2013-05-02 2014-11-05 厦门大学 Novel swirl dispersing device
CN105289240A (en) * 2015-08-18 2016-02-03 江苏联兴成套设备制造有限公司 Wet method deacidification device for smoke of pyrolysis and gasification combustion furnace
CN107008112A (en) * 2017-06-07 2017-08-04 宁夏龙江化工科技有限公司 A kind of light hydrocarbon etherifying industrial water washes tower

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104128106A (en) * 2013-05-02 2014-11-05 厦门大学 Novel swirl dispersing device
CN103611713A (en) * 2013-11-08 2014-03-05 常州大学 Cleaning device and cleaning method for dirt at top of distilling tower and whole distilling tower
CN105289240A (en) * 2015-08-18 2016-02-03 江苏联兴成套设备制造有限公司 Wet method deacidification device for smoke of pyrolysis and gasification combustion furnace
CN107008112A (en) * 2017-06-07 2017-08-04 宁夏龙江化工科技有限公司 A kind of light hydrocarbon etherifying industrial water washes tower

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: XINZHONGTIAN ENVIRONMENTAL CO., LTD.

Free format text: FORMER OWNER: ZHONGTIAN ENVIRONMENTAL PROTECTION INDUSTRIAL GROUP

Effective date: 20141202

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 400060 NANAN, CHONGQING TO: 400000 NANAN, CHONGQING

TR01 Transfer of patent right

Effective date of registration: 20141202

Address after: Nanping Nan'an District of Chongqing City Baihe road 400000 No. 43

Patentee after: XINZHONGTIAN ENVIRONMENTAL PROTECTION CO., LTD.

Address before: Nanping Nan'an District of Chongqing City Baihe road 400060 No. 43

Patentee before: Zhongtian Environmental Protection Industrial Group

CX01 Expiry of patent term

Granted publication date: 20110119

CX01 Expiry of patent term