CN106390705A - A flue desulphurization exhaust-gas treatment system - Google Patents
A flue desulphurization exhaust-gas treatment system Download PDFInfo
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- CN106390705A CN106390705A CN201610448494.9A CN201610448494A CN106390705A CN 106390705 A CN106390705 A CN 106390705A CN 201610448494 A CN201610448494 A CN 201610448494A CN 106390705 A CN106390705 A CN 106390705A
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- flue
- flue gas
- purifying column
- heat exchanger
- circulating slot
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/73—After-treatment of removed components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biomedical Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
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- Food Science & Technology (AREA)
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- Physics & Mathematics (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Treating Waste Gases (AREA)
Abstract
A flue desulphurization exhaust-gas treatment system is disclosed. The system comprises a flue gas feeding pipe provided with a dedusting purifying screen. The flue gas passing through the dedusting purifying screen is fed into a purification column through a pipe. A heat exchanger A is connected between the purification column and the flue gas feeding pipe. A valve structure is disposed at a connecting point of the purification column and the flue gas feeding pipe. The purification column has a cylindric structure. A spraying layer, a filler layer and a circulating tank are disposed in order from top to bottom in a shell. The system is compact in designed structure. The desulphurization efficiency can be 90% or above, thus further reducing emission of sulfur dioxide. The system is suitable for exhaust-gas treatment of enterprises in each industry.
Description
Technical field
The present invention relates to field of environment protection equipment, more particularly to a kind of flue desulfurization exhaust treatment system.
Background technology
Development with China's economic，Contradictory problems between economical and environmentally friendly are more and more prominent，Recent years，A lot of Urban Acid Rain problems are serious，The formation of acid rain，The sulfur dioxide of mainly fume emission is exceeded to be led to，The discharge of China's sulfur dioxide is mainly coal fire discharged，Wherein power plant emission proportion is very big，For this，Country has put into effect national standard for atmosphere environment quality，Make power plant combustion low-sulfur coal，Sulfur dioxide is reduced discharging，But，China is in various chemical industry，Steel-making，Aluminium metallurgy，Medicine，There is also a large amount of fume emissions in papermaking industry，And sulfur content is high，Flue gas desulfurization facilities are lower than power plant standard，They are also the very important pollution source of environmental pollution，And Flue duct design is with respect to power plant's more imperfection，It is more difficult to manage，For this，The invention provides a kind of flue desulfurization exhaust treatment system，National atmosphere quality can be effectively improved，And system cost is low，Sulfur removal technology is simple and reliable.
Content of the invention
The invention mainly solves the technical problem of providing a kind of flue desulfurization exhaust treatment system, flue desulfurization design structure is compact, and in desulfurization, design parameter can automatically control, and the reaction of absorption tower whole interior is fully, good absorbing effect, and sulfur removal effectiveness is high.
A kind of described flue desulfurization exhaust treatment system, including：Flue gas access, flue gas access is the waste gas route containing sulphur impurity, udst separation net is provided with flue gas access, udst separation net adopts double medium filtration web frame, and solid particle is intercepted, through the flue gas of udst separation net, purifying column is entered into by pipeline, connect setting heat exchanger A between purifying column and flue gas access, heat exchanger A adopt Horizontal Cylinder structure, and inside is designed for double-decker, unnecessary heat is carried out heat exchange absorption, further saves the energy.
Between flue gas access and purifying column, junction is provided with valve mechanism, and valve adopts anti-corrosion material to make, and is provided with corrosion-proof lining, can adjust the speed of flue gas inlet channel purifying column by valve in valve.
Described purifying column is cylindrical structure form, it is provided with housing outside purifying column, it is provided with spraying layer in enclosure interior from top to bottom, packing layer and three parts of circulating slot, connect setting shower on spraying layer, shower lower end is connected to circulating slot, and shower upper end is provided with spray head.
A kind of optimal technical scheme, is provided with polytetrafluoroethylene (PTFE) Pall ring and Raschig ring so that reaction is more abundant in packing layer.
And connect setting spray tank on circulating slot, the spray tank of the present invention adopts the caustic lime stone powder aqueous solution, by neutralization reaction, sulfur dioxide is generated calcium sulfate and sulfuric acid Asia calcium.Waste gas after purifying is discharged in purifying column upper end, the valve mechanism in purifying column upper end connect setting, and discharge duct is connected to by valve, heat exchanger B is provided with discharge duct, absorb heat further, purification rear pass is entered into by the waste gas of heat exchanger B, rainhat and air detecting device are provided with after cleaning on flue, further detect air quality, qualified after air through piping top discharge.
A kind of optimal technical scheme, is provided with warning device on air detecting device, if discharge is unqualified, can send alarm, the drain tap purifying top of tower is closed, reactive absorption again further.
Described circulating slot is connected to water pump by pipeline, by water pump power the calcium sulfate in circulating slot, calcium sulfite is brought into cyclone device, and cyclone is connected to dewaterer, gypsum processed is dehydrated by dewaterer, thus completing the process of whole flue desulfurization waste gas.
The invention has the beneficial effects as follows：A kind of present invention flue desulfurization exhaust treatment system; system design compact conformation; desulfuration efficiency can be more than 90%; reduce further the discharge of sulfur dioxide; and invest low with expense; the waste discharge gas disposal of industry-by-industry enterprise of suitable China, protects atmospheric environment after treatment, improves environmental quality.
Brief description
Fig. 1 is a kind of structural representation of present invention flue desulfurization exhaust treatment system；
In accompanying drawing, the mark of each part is as follows：
1 is flue gas access, and 101 is udst separation net, and 2 is heat exchanger A, and 3 is heat exchanger B, and 4 is to purify rear pass, and 401 is rainhat, and 402 is air detecting device, and 5 is purifying column, and 501 is shower, and 6 is circulating slot, and 7 is spray tank, and 8 is cyclone, and 9 is dewaterer.
Specific embodiment
Below in conjunction with the accompanying drawings presently preferred embodiments of the present invention is described in detail, so that advantages and features of the invention can be easier to be readily appreciated by one skilled in the art, thus protection scope of the present invention is made apparent clearly defining.
Refer to Fig. 1, the embodiment of the present invention includes：
A kind of described flue desulfurization exhaust treatment system, including：Flue gas access, flue gas access is the waste gas route containing sulphur impurity, udst separation net is provided with flue gas access, udst separation net adopts double medium filtration web frame, and solid particle is intercepted, through the flue gas of udst separation net, purifying column is entered into by pipeline, connect setting heat exchanger A between purifying column and flue gas access, heat exchanger A adopt Horizontal Cylinder structure, and inside is designed for double-decker, unnecessary heat is carried out heat exchange absorption, further saves the energy.
Between flue gas access and purifying column, junction is provided with valve mechanism, and valve adopts anti-corrosion material to make, and is provided with corrosion-proof lining, can adjust the speed of flue gas inlet channel purifying column by valve in valve.
Described purifying column is cylindrical structure form, it is provided with housing outside purifying column, it is provided with spraying layer in enclosure interior from top to bottom, packing layer and three parts of circulating slot, connect setting shower on spraying layer, shower lower end is connected to circulating slot, and shower upper end is provided with spray head.
A kind of optimal technical scheme, is provided with polytetrafluoroethylene (PTFE) Pall ring and Raschig ring so that reaction is more abundant in packing layer.
And connect setting spray tank on circulating slot, the spray tank of the present invention adopts the caustic lime stone powder aqueous solution, by neutralization reaction, sulfur dioxide is generated calcium sulfate and sulfuric acid Asia calcium.Waste gas after purifying is discharged in purifying column upper end, the valve mechanism in purifying column upper end connect setting, and discharge duct is connected to by valve, heat exchanger B is provided with discharge duct, absorb heat further, purification rear pass is entered into by the waste gas of heat exchanger B, rainhat and air detecting device are provided with after cleaning on flue, further detect air quality, qualified after air through piping top discharge.
A kind of optimal technical scheme, is provided with warning device on air detecting device, if discharge is unqualified, can send alarm, the drain tap purifying top of tower is closed, reactive absorption again further.
Described circulating slot is connected to water pump by pipeline, by water pump power the calcium sulfate in circulating slot, calcium sulfite is brought into cyclone device, and cyclone is connected to dewaterer, gypsum processed is dehydrated by dewaterer, thus completing the process of whole flue desulfurization waste gas.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; equivalent structure or equivalent flow conversion that every utilization description of the invention and accompanying drawing content are made; or directly or indirectly it is used in other related technical fields, it is included within the scope of the present invention.
Claims (3)
1. a kind of flue desulfurization exhaust treatment system is it is characterised in that include：Flue gas access, is provided with udst separation net on flue gas access, and udst separation net adopts double medium filtration web frame, and solid particle is intercepted,
Through the flue gas of udst separation net, purifying column is entered into by pipeline，Connect setting heat exchanger A between purifying column and flue gas access，Heat exchanger A adopts Horizontal Cylinder structure，Inside is designed for double-decker，Between flue gas access and purifying column, junction is provided with valve mechanism，Valve adopts anti-corrosion material to make，It is provided with corrosion-proof lining in valve，Purifying column is cylindrical structure form，It is provided with housing outside purifying column，It is provided with spraying layer in enclosure interior from top to bottom，Packing layer and three parts of circulating slot，Connect setting shower on spraying layer，Shower lower end is connected to circulating slot，Shower upper end is provided with spray head，And connect setting spray tank on circulating slot，Spray tank adopts the caustic lime stone powder aqueous solution，By neutralization reaction，Sulfur dioxide is generated calcium sulfate and sulfuric acid Asia calcium，Waste gas after purifying is discharged in purifying column upper end，The valve mechanism in purifying column upper end connect setting，And discharge duct is connected to by valve，Heat exchanger B is provided with discharge duct，Absorb heat further，Purification rear pass is entered into by the waste gas of heat exchanger B，Rainhat and air detecting device are provided with after cleaning on flue，Circulating slot is connected to water pump by pipeline，By water pump power the calcium sulfate in circulating slot，Calcium sulfite is brought into cyclone device，And cyclone is connected to dewaterer，Gypsum is obtained by dewaterer dehydration，Thus completing the process of whole flue desulfurization waste gas.
2. a kind of flue desulfurization exhaust treatment system according to claim 1 is it is characterised in that be provided with polytetrafluoroethylene (PTFE) Pall ring and Raschig ring in packing layer.
3. a kind of flue desulfurization exhaust treatment system according to claim 1 is it is characterised in that be provided with warning device on air detecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610448494.9A CN106390705A (en) | 2016-06-21 | 2016-06-21 | A flue desulphurization exhaust-gas treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610448494.9A CN106390705A (en) | 2016-06-21 | 2016-06-21 | A flue desulphurization exhaust-gas treatment system |
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| CN106390705A true CN106390705A (en) | 2017-02-15 |
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| CN201610448494.9A Pending CN106390705A (en) | 2016-06-21 | 2016-06-21 | A flue desulphurization exhaust-gas treatment system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273345A (en) * | 2018-03-29 | 2018-07-13 | 朱友富 | Environment-protecting type exhaust air processing unit |
| CN108872480A (en) * | 2018-06-12 | 2018-11-23 | 北京首仪华强电子设备有限公司 | The device that gas is analyzed in a kind of pair of high-sulfur atmosphere |
| CN109459531A (en) * | 2018-11-12 | 2019-03-12 | 铜陵有色金属集团股份有限公司金冠铜业分公司 | Residual oxygen analysis system |
| CN113694710A (en) * | 2021-09-29 | 2021-11-26 | 山西省工业设备安装集团有限公司 | Coke oven flue gas desulfurization and purification device |
| CN114471026A (en) * | 2021-12-22 | 2022-05-13 | 国能长源武汉青山热电有限公司 | Flue gas purification device for waste heat utilization technology and purification method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273345A (en) * | 2018-03-29 | 2018-07-13 | 朱友富 | Environment-protecting type exhaust air processing unit |
| CN108872480A (en) * | 2018-06-12 | 2018-11-23 | 北京首仪华强电子设备有限公司 | The device that gas is analyzed in a kind of pair of high-sulfur atmosphere |
| CN109459531A (en) * | 2018-11-12 | 2019-03-12 | 铜陵有色金属集团股份有限公司金冠铜业分公司 | Residual oxygen analysis system |
| CN113694710A (en) * | 2021-09-29 | 2021-11-26 | 山西省工业设备安装集团有限公司 | Coke oven flue gas desulfurization and purification device |
| CN114471026A (en) * | 2021-12-22 | 2022-05-13 | 国能长源武汉青山热电有限公司 | Flue gas purification device for waste heat utilization technology and purification method thereof |
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Application publication date: 20170215 |
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