CN207385168U - A kind of device of gas cleaning - Google Patents
A kind of device of gas cleaning Download PDFInfo
- Publication number
- CN207385168U CN207385168U CN201721277529.3U CN201721277529U CN207385168U CN 207385168 U CN207385168 U CN 207385168U CN 201721277529 U CN201721277529 U CN 201721277529U CN 207385168 U CN207385168 U CN 207385168U
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- China
- Prior art keywords
- scrubbing tower
- pipeline
- throwing device
- storage tank
- lye
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a kind of devices of gas cleaning.The device includes the first scrubbing tower, the second scrubbing tower, oxidant throwing device, reducing agent throwing device and lye throwing device；The exhanst gas outlet of first scrubbing tower is connected by pipeline with the smoke inlet of the second scrubbing tower；The liquid storage tank of first scrubbing tower is connected by pipeline and first circulation pump, and first circulation pump is connected by pipeline with oxidant throwing device and lye throwing device respectively, then is connected with the spray equipment of the first scrubbing tower；The liquid storage tank of second scrubbing tower is connected by pipeline and second circulation pump, and second circulation pump is connected by pipeline with reducing agent throwing device and lye throwing device respectively, then is connected with the spray equipment of the second scrubbing tower.The utility model device can effectively handle high nitrogen-containing oxide flue gas, and can handle the harmful components such as sulfur dioxide, the hydrogen chloride in flue gas, hydrogen fluoride, ammonia, chlorine simultaneously, reach the requirement of environmental protection.
Description
Technical field
The utility model is related to a kind of devices of gas cleaning.
Background technology
The nitrogen oxides that the burnings such as waste, fire coal generate is to cause atmosphere pollution, one of the arch-criminal of acid rain, to environment
Tremendous influence is caused with the health of the mankind.Conventional denitrating flue gas mainly has SNCR and SCR, and SNCR reaction temperatures are difficult to
Control, it is less efficient, cause secondary pollution (higher the escaping of ammonia rate)；SCR costs of investment are high, and repair, operating cost are high.
For the flue gas containing high concentration nitrogen oxide, SNCR is typically used as preliminary disposal technique, then be equipped with SCR technology can
Reach increasingly stringenter environmental requirement, so cause investment big, repair operating cost is high, takes up a large area.And useless
Cause secondary pollution (higher the escaping of ammonia rate) in water and exhaust gas；Conventional denitrfying agent (ammonia, urea etc.) smell weight, high sensitivity
(smell), diffusion is fast, unfriendly to environment.
Utility model content
The purpose of this utility model is to provide a kind of devices of gas cleaning.
Technical solution adopted in the utility model is：
A kind of device of gas cleaning is thrown including the first scrubbing tower, the second scrubbing tower, oxidant throwing device, reducing agent
Feeder apparatus and lye throwing device；First scrubbing tower and the second scrubbing tower be equipped with successively from the bottom to top liquid storage tank, smoke inlet,
Spray equipment and exhanst gas outlet；The exhanst gas outlet of first scrubbing tower is connected by pipeline with the smoke inlet of the second scrubbing tower；The
The liquid storage tank of one scrubbing tower is connected by pipeline and first circulation pump, and first circulation pump adds dress with oxidant respectively by pipeline
It puts and is connected with lye throwing device, then be connected with the spray equipment of the first scrubbing tower；The liquid storage tank of second scrubbing tower passes through pipeline
It pumping and connects with second circulation, second circulation pump is connected by pipeline with reducing agent throwing device and lye throwing device respectively, then
It is connected with the spray equipment of the second scrubbing tower.
In second scrubbing tower, demister is additionally provided between spray equipment and exhanst gas outlet.
The demister of second scrubbing tower is connected by pipeline with process water system.
Process water system is connected by pipeline with the smoke inlet of the first scrubbing tower and spray equipment respectively.
The liquid storage tank of first scrubbing tower is connected with the liquid storage tank of the second scrubbing tower by pipeline with wastewater disposal basin.
The exhanst gas outlet of second scrubbing tower is connected by pipeline with air-introduced machine.
The beneficial effects of the utility model are：
The utility model device can effectively handle high nitrogen-containing oxide flue gas, and can handle the dioxy in flue gas simultaneously
Change sulphur, hydrogen chloride, the harmful components such as hydrogen fluoride, ammonia, chlorine reach the requirement of environmental protection.
Description of the drawings
Fig. 1 is the schematic diagram of the utility model device.
Specific embodiment
A kind of device of gas cleaning is thrown including the first scrubbing tower, the second scrubbing tower, oxidant throwing device, reducing agent
Feeder apparatus and lye throwing device；First scrubbing tower and the second scrubbing tower be equipped with successively from the bottom to top liquid storage tank, smoke inlet,
Spray equipment and exhanst gas outlet；The exhanst gas outlet of first scrubbing tower is connected by pipeline with the smoke inlet of the second scrubbing tower；The
The liquid storage tank of one scrubbing tower is connected by pipeline and first circulation pump, and first circulation pump adds dress with oxidant respectively by pipeline
It puts and is connected with lye throwing device, then be connected with the spray equipment of the first scrubbing tower；The liquid storage tank of second scrubbing tower passes through pipeline
It pumping and connects with second circulation, second circulation pump is connected by pipeline with reducing agent throwing device and lye throwing device respectively, then
It is connected with the spray equipment of the second scrubbing tower.
Further, in the second scrubbing tower, demister is additionally provided between spray equipment and exhanst gas outlet.
Further, the demister of the second scrubbing tower is connected by pipeline with process water system.
Further, process water system is connected by pipeline with the smoke inlet of the first scrubbing tower and spray equipment respectively
It connects.
Further, the liquid storage tank of the liquid storage tank of the first scrubbing tower and the second scrubbing tower is connected by pipeline and wastewater disposal basin
It connects.
Further, the exhanst gas outlet of the second scrubbing tower is connected by pipeline with air-introduced machine.
Further, oxidant throwing device includes oxidant storage tank and oxidant pump.
Preferably, oxidant is selected from potassium permanganate, sodium hypochlorite, sodium chlorite, sodium perchlorate, calcium hypochlorite, peroxidating
At least one of hydrogen, Na2Fe04, potassium peroxydisulfate and ozone.
Further, reducing agent throwing device includes reducing agent storage tank and reducing agent pump.
Preferably, wherein one in reducing agent is 10~20% selected from mass concentration ammonium hydroxide, urea, sodium sulfite solution
Kind.
Further, lye throwing device includes alkali liquor storage tank and lye pump.
Preferably, lye is selected from alkali metal hydroxide, alkali carbonate or alkali metal bicarbonate solution；Further
Preferably, lye is sodium hydroxide, in potassium hydroxide, calcium hydroxide, sodium carbonate, potassium carbonate, sodium acid carbonate, potassium bicarbonate solution
At least one；Still further preferably, lye is at least one of sodium hydroxide, potassium hydroxide, calcium hydroxide solution.
Further, the mass concentration of alkali is 25~35% in lye.
The content of the utility model is described in further detail below by way of specific embodiment.
Embodiment：
Attached drawing 1 is the schematic diagram of the utility model device.In Fig. 1, the first scrubbing towers of 1-, the second scrubbing towers of 2-, 3- oxidations
Agent throwing device, 4- reducing agent throwing devices, 5- lye throwing devices, 6- the first scrubbing tower liquid storage tanks, 7- the first scrubbing tower cigarettes
Gas entrance, 8- the first scrubbing tower spray equipments, 9- the first scrubbing tower exhanst gas outlets, 10- first circulations pump, the second scrubbing towers of 11-
Liquid storage tank, 12- the second scrubbing tower smoke inlets, 13- the second scrubbing tower spray equipments, 14- the second scrubbing tower demisters, 15-
Two scrubbing tower exhanst gas outlets, 16- second circulations pump, 17- process water systems, 18- wastewater disposal basins, 19- air-introduced machines.
The device of 1 pair of the utility model illustrates below in conjunction with the accompanying drawings：A kind of device of gas cleaning, is washed including first
Wash tower 1, the second scrubbing tower 2, oxidant throwing device 3, reducing agent throwing device 4 and lye throwing device 5；First scrubbing tower 1
It is equipped with liquid storage tank 6, smoke inlet 7, spray equipment 8 and exhanst gas outlet 9 successively from the bottom to top；Second scrubbing tower 2 from the bottom to top according to
It is secondary to be equipped with liquid storage tank 11, smoke inlet 12, spray equipment 13, demister 14 and exhanst gas outlet 15；The flue gas of first scrubbing tower goes out
Mouth 9 is connected by pipeline with the smoke inlet 12 of the second scrubbing tower；The liquid storage tank 6 of first scrubbing tower 1 is followed by pipeline and first
10 connection of ring pump, first circulation pump 10 are connected by pipeline with oxidant throwing device 3 and lye throwing device 5 respectively, then with
The spray equipment 8 of first scrubbing tower connects；The liquid storage tank 11 of second scrubbing tower 2 is connected by pipeline with second circulation pump 16, the
Two circulating pumps 16 are connected by pipeline with reducing agent throwing device 4 and lye throwing device 5 respectively, then the spray with the second scrubbing tower
Shower device 13 connects；Process water system 17 respectively by pipeline and the smoke inlet 7 of the first scrubbing tower and spray equipment 8, with
And second the demister 14 of scrubbing tower connect；The liquid storage tank 6 of first scrubbing tower 1 and the liquid storage tank 11 of the second scrubbing tower 2 pass through
Pipeline is connected with wastewater disposal basin 18；The exhanst gas outlet 15 of second scrubbing tower is connected by pipeline with air-introduced machine 19.
In addition, oxidant throwing device 3 includes oxidant storage tank and oxidant pump, the oxidant in oxidant storage tank passes through
Oxidant pump is added to the first scrubbing tower, and preferred oxidant is hydrogen peroxide in the present embodiment；Reducing agent throwing device 4 includes
Reducing agent storage tank and reducing agent pump, the reducing agent in reducing agent storage tank are added by reducing agent pump to the second scrubbing tower, this implementation
The ammonium hydroxide that preferred reducing agent is 15% in example；Lye throwing device 5 includes alkali liquor storage tank and lye pump, the alkali in alkali liquor storage tank
Liquid is added by lye pump respectively to the first scrubbing tower and the second scrubbing tower, the hydrogen-oxygen that preferred lye is 30% in the present embodiment
Change sodium solution.
When in use, flue gas enters the utility model device from the smoke inlet of the first scrubbing tower, from the first scrubbing tower certainly
Under up enter the second scrubbing tower；Circulation fluid in two towers is sprayed down by circulating pump from top of tower respectively, with flue gas into
Row counter current contacting is reacted.Lye, which is sent by lye throwing device to circulating-pump outlet, makes the circulation fluid in two towers keep alkalescence,
Oxidant and lye are added in first scrubbing tower, reducing agent and lye are added in the second scrubbing tower, so in two towers
Middle nitrogen oxides and sour gas can be removed very well.Two scrubbing towers are all using circulation fluid by circulating pump from top of tower
It sprays down, counter current contacting reaction is carried out with flue gas, ensureing that gas-liquid comes into full contact in tower makes that the reaction was complete.In addition, by technique
In the gas inlet spraying cooling of the first scrubbing tower, demisting is set in the second scrubbing tower by pipeline for the water that water system provides
Device can improve the clean-up effect of flue gas.
Flue gas after purified is discharged from the exhanst gas outlet at the top of second scrubbing tower through air-introduced machine, two wash tower bottoms
The waste liquid of liquid storage tank connects wastewater disposal basin storage centralized processing by pipeline.
Claims (6)
1. a kind of device of gas cleaning, it is characterised in that：Including the first scrubbing tower, the second scrubbing tower, oxidant throwing device,
Reducing agent throwing device and lye throwing device；First scrubbing tower and the second scrubbing tower be equipped with successively from the bottom to top liquid storage tank,
Smoke inlet, spray equipment and exhanst gas outlet；The exhanst gas outlet of first scrubbing tower is entered by the flue gas of pipeline and the second scrubbing tower
Mouth connection；The liquid storage tank of first scrubbing tower by pipeline and first circulation pump connect, first circulation pump by pipeline respectively with oxygen
Agent throwing device is connected with lye throwing device, then is connected with the spray equipment of the first scrubbing tower；The reservoir of second scrubbing tower
Pond is connected by pipeline and second circulation pump, and second circulation pump adds dress with reducing agent throwing device and lye respectively by pipeline
It puts connected, then is connected with the spray equipment of the second scrubbing tower.
2. a kind of device of gas cleaning according to claim 1, it is characterised in that：In second scrubbing tower, spray equipment
Demister is additionally provided between exhanst gas outlet.
3. a kind of device of gas cleaning according to claim 2, it is characterised in that：The demister of second scrubbing tower passes through
Pipeline is connected with process water system.
4. a kind of device of gas cleaning according to claim 3, it is characterised in that：Process water system passes through pipeline point
It is not connected with the smoke inlet of the first scrubbing tower and spray equipment.
5. a kind of device of gas cleaning according to claim 1, it is characterised in that：The liquid storage tank of first scrubbing tower and
The liquid storage tank of two scrubbing towers is connected by pipeline with wastewater disposal basin.
6. a kind of device of gas cleaning according to claim 1, it is characterised in that：The exhanst gas outlet of second scrubbing tower leads to
Piping is connected with air-introduced machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721277529.3U CN207385168U (en) | 2017-09-29 | 2017-09-29 | A kind of device of gas cleaning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721277529.3U CN207385168U (en) | 2017-09-29 | 2017-09-29 | A kind of device of gas cleaning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207385168U true CN207385168U (en) | 2018-05-22 |
Family
ID=62330712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721277529.3U Active CN207385168U (en) | 2017-09-29 | 2017-09-29 | A kind of device of gas cleaning |
Country Status (1)
| Country | Link |
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| CN (1) | CN207385168U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110856796A (en) * | 2018-08-22 | 2020-03-03 | 江苏凯亚环保科技有限公司 | Environment-friendly sodium chlorite flue gas denitration system |
-
2017
- 2017-09-29 CN CN201721277529.3U patent/CN207385168U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110856796A (en) * | 2018-08-22 | 2020-03-03 | 江苏凯亚环保科技有限公司 | Environment-friendly sodium chlorite flue gas denitration system |
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