CN108392975A - A kind of moisture that absorbs carries out de- white wet type fume sweetening device - Google Patents
A kind of moisture that absorbs carries out de- white wet type fume sweetening device Download PDFInfo
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- CN108392975A CN108392975A CN201810417064.XA CN201810417064A CN108392975A CN 108392975 A CN108392975 A CN 108392975A CN 201810417064 A CN201810417064 A CN 201810417064A CN 108392975 A CN108392975 A CN 108392975A
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- Prior art keywords
- rotary dehumidifier
- absorbing tower
- desulfuration absorbing
- cooling
- moisture
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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
- B01D53/504—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 device
-
- 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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
- B01D53/06—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 by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
-
- 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
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention provides a kind of absorption moisture to carry out de- white wet type fume sweetening device, simple in structure, reliable for operation, is not only easy to realize and eliminates white cigarette, and without additional input thermal energy and add heating, cooling equipment, energy consumption is low, at low cost；It includes desulfuration absorbing tower, chimney, cooling blower, it further includes rotary dehumidifier, the heat medium import of the rotary dehumidifier is connected with main air blower, the Crude product input of the rotary dehumidifier connects the gas inlet of the desulfuration absorbing tower, the desulfurization fume import of the rotary dehumidifier connects the exhanst gas outlet of the desulfuration absorbing tower, and the desulfurization fume outlet of the rotary dehumidifier connects the chimney.
Description
Technical field
The present invention relates to technical field of energy saving and environmental protection, specially a kind of moisture that absorbs carries out de- white wet flue gas desulfurization dress
It sets.
Background technology
In the flue gas that coal-fired boiler in power plant, sintering machine of steel mill and some other combustion of fossil fuels kiln generate, contain
A large amount of sulfur dioxide, to form the environmental hazards such as acid rain, is mostly by wet at present if direct emission can pollute air
Method desulfurizer removes the sulfur dioxide in flue gas, but since the humidity of flue gas after wet desulphurization is up to 13 ~ 15%, flue gas
Temperature is relatively low, and between 50 ~ 55 DEG C, flue gas is discharged into air by chimney and is mixed with cold air, and the vapor in flue gas was in
Saturation state, part vapor condense fogging, just will appear " white cigarette " phenomenon, especially winter, can aggravate white cigarette phenomenon, are easy
Visual pollution is caused, environmental beauty is influenced；Then in order to eliminate the white cigarette formed above blowdown stack, it is generally used flue gas
The method of reheating or be use GGH, that is, utilize desulfurization before high-temperature flue gas heat, heat desulfurization after flue gas, keep temperature big
In 75 ~ 80 DEG C or SGH is used, that is, utilizes the flue gas after the heating desulfurization of boiler steam, makes temperature more than 80 ~ 90 DEG C, but before
The method that person uses, still temperature be not high, and is also easy to produce acid and condenses and etching apparatus, and often has equipment to block asking for leakage
Topic, this method is in time earlier using more, and the method that the latter uses needs the thermal energy such as additional input steam, also just has additional
The problem of energy expenditure, or in patent No. CN201510071612, it discloses a kind of flue gas reheats based on fluoroplastics
System and reheating method, although realizing flue gas reheat, its cost of investment is higher, for another example patent No. CN201610557160,
Boiler recirculated cooling water cooled flue gas dehumidifying and cooling is utilized it discloses a kind of, has recycled the heat of boiler to make flue gas again
Heating, but increase has cooling, heating system in the structure, and not only complicated, energy consumption is also relatively high.
Invention content
During being taken off in vain for existing flue gas, the corrosive equipment and equipment of generation block leakage, or exist additionally
Energy expenditure, it is also or of high cost, additional equipment make it is complicated, improve energy consumption the problem of the present invention provides one kind
It absorbs moisture and carries out de- white wet type fume sweetening device, it is simple in structure, reliable for operation, it is not only easy to realize and eliminates white cigarette,
And without additional input thermal energy and heating, cooling equipment are added, energy consumption is low, at low cost.
Its technical solution is such：It includes desulfuration absorbing tower, chimney, cooling blower, it is characterised in that：It further includes
The heat medium import of rotary dehumidifier, the rotary dehumidifier is connected with main air blower, and the rotary dehumidifier adds
Thermal medium outlet connects the gas inlet of the desulfuration absorbing tower, described in the desulfurization fume import connection of the rotary dehumidifier
The desulfurization fume outlet of the exhanst gas outlet of desulfuration absorbing tower, the rotary dehumidifier connects the chimney.
It is further characterized by：
The rotary dehumidifier uses rotary adsorption type dehumidifier, and silica gel absorber is equipped in the rotary dehumidifier；Institute
Rotary dehumidifier is stated equipped with cooling medium inlet, cooling media outlet, the cooling medium inlet of the rotary dehumidifier
Low-temperature receiver is connected, the cooling media outlet of the rotary dehumidifier is connected with the cooling blower；
The desulfuration absorbing tower is tube structure, and demister setting up and down, spray tube, institute are equipped in the desulfuration absorbing tower
The gas inlet for stating desulfuration absorbing tower is set to below the spray tube, the desulfuration absorbing tower bottom be equipped with slurry discharge ports,
Gypsum outlet connects the spray tube, the slurries discharge after slurry discharge ports connection slurry circulating pump by pipeline
The desulfuration absorbing tower above mouthful is equipped with slurry inlet；
In the desulfuration absorbing tower up and down staggered row show four groups described in spray tube, and the height of spray tube described in every group is different.
The invention has the advantages that sulfur-containing smoke gas, which is sent by main air blower in rotary dehumidifier, carries out parsing desorption,
Then entering and passes through desulfurization in desulfuration absorbing tower, the flue gas after desulfurization, which is again introduced into rotary dehumidifier, carries out dehumidification treatments,
It then removes flue gas up to standard after moisture to be discharged by chimney, and a large amount of heat can be released in dehumidification process, these heats
It heated desulfurization fume again, desulfurization fume temperature can be made to increase, humidity reduces, so as to eliminate the white of blowdown stack top formation
Cigarette meets emission request, also avoids meeting etching apparatus and equipment blocks the problem of leaking, and without heat such as additional input steam
Heating, cooling equipment can and be added, energy consumption is low, at low cost, realizes flue gas desulfurization and takes off white energy-saving and emission-reduction.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Specific implementation mode
As shown in Figure 1, the present invention include desulfuration absorbing tower 3, chimney 4, cooling blower 6 and be connected to desulfuration absorbing tower 3,
Rotary dehumidifier 2 between chimney 4, the exhanst gas outlet 9 of desulfuration absorbing tower 3 connect the desulfurization fume of rotary dehumidifier 2 into
Mouth 12, the 13 connection chimneys 4 of desulfurization fume outlet of rotary dehumidifier 2, the top floss hole of chimney 4 are connected to air, rotatably
The heat medium import 17 of dehumidifier 2 connects the outlet of main air blower 1, and the import of main air blower 1 connects external cleaner, rotatably
The Crude product input 15 of dehumidifier 2 connects the gas inlet 18 of desulfuration absorbing tower 3.
Rotary dehumidifier 2 uses rotary adsorption type dehumidifier, is equipped with silica gel absorber in rotary dehumidifier 2, rises and inhale
The effect of moisture in attached flue gas；It is equipped with adsorption zone, parsing area, cooling zone in rotary dehumidifier 2, is set on rotary dehumidifier 2
There are cooling medium inlet 14, cooling media outlet 16, the cooling medium inlet 14 of rotary dehumidifier 2 to connect low-temperature receiver, rotatably
The cooling media outlet 16 of dehumidifier 2 is connected with cooling blower 6, and the outlet of cooling blower 6 is connect by pipeline with boiler, then
The cooling air of recycling heat in rotary dehumidifier 2 is sent into boiler via cooling blower 6, fuel can be saved；Desulfurization absorbs
Tower 3 is tube structure, and demister 7 setting up and down, spray tube 8, the flue gas of desulfuration absorbing tower 3 are equipped in desulfuration absorbing tower 3
Import 18 is set to 8 lower section of spray tube, and 3 bottom of desulfuration absorbing tower is equipped with slurry discharge ports 11, gypsum outlet 19, slurries discharge
Mouth 11 is equipped with after connecting slurry circulating pumps 5 by pipeline connection spray tube 8, the desulfuration absorbing tower 3 of 11 top of slurry discharge ports
Slurry inlet 10；Staggered row shows four groups of spray tubes 8 up and down in desulfuration absorbing tower 3, and the height of every group of spray tube 8 is different, spray
Leaching is more uniform, improves desulfurization effect.
The course of work of the present invention is, by the high temperature sulfur-containing smoke gas of external cleaner dedusting, by pipeline via master
The parsing area of rotary dehumidifier 2 is sent into wind turbine 1 and heat medium import 17, and in parsing area, high-temperature flue gas is to having adsorbed moisture
Adsorbent heated, adsorbent temperature rises after heating, and after the resolved desorption of moisture, sulfur-containing smoke gas is gone out by heat medium
The parsing area of rotary dehumidifier 2 is discharged in mouth 15, then enters desulfuration absorbing tower 3 by pipeline, in desulfuration absorbing tower 3 under
Spray tube 8, demister 7 are passed sequentially through on and, are then discharged by the exhanst gas outlet 9 of desulfuration absorbing tower 3, wherein desulfurization
Lime slurry takes out from lime slurry device, enters desulfuration absorbing tower 3 by pipeline and slurry inlet 10, makes for flue gas desulfurization
With, slurry circulating pump 5 extracts lime slurry out from 3 lower part of desulfuration absorbing tower, and the spray tube 8 of desulfuration absorbing tower 3 is sent by pipeline,
The sulfur dioxide in droplet absorption flue gas is sprayed from spray tube 8 again, extra lime slurry is fallen into desulfuration absorbing tower 3, again
8 circulated sprinkling of spray tube is sent by slurry circulating pump 5；The lime slurry absorbent that sulfur-containing smoke gas is first sprayed with spray tube 8 contacts
It is sufficiently mixed, the sulfur dioxide in flue gas is reacted with the lime in slurries, and scrubbing CO_2 generates gypsum, gypsum
It is discharged by the gypsum outlet 19 of 3 bottom of desulfuration absorbing tower, then can be disposed by the gypsum processing apparatus with external connection,
Flue gas contains a large amount of water mist after spraying desulfurization in flue gas after desulfurization, the mist in flue gas is then removed by demister 7
Drop；The desulfurization fume being discharged from the exhanst gas outlet 9 of desulfuration absorbing tower 3, humidity is still higher, and temperature reduces, and then passes through pipe
Road and desulfurization fume import 12 enter the adsorption zone of rotary dehumidifier 2, in adsorption zone, the absorption built in rotary dehumidifier 2
The moisture in desulfurization fume is adsorbed in agent, and flue gas moisture is removed, and can release a large amount of heat of adsorption, to heated desulfurization cigarette
Gas, the adsorption zone of rotary dehumidifier 2 is discharged in flue gas after removing moisture, is then gone out by the desulfurization fume of rotary dehumidifier 2
Mouth 13 is discharged, then after 2 dehumidification treatments of rotary dehumidifier, desulfurization fume humidity reduces temperature and increases, and then passes through pipeline
Enter 4 qualified discharge of chimney with desulfurization fume outlet 13；The adsorbent that temperature improves after parsing desorption needs cooling could again
Adsorption moisture then needs to cool down adsorbent with cooling gas, i.e., cooling gas by pipeline and cooling medium into
Mouth 14 enters the cooling zone of rotary dehumidifier 2, and in cooling zone, cooling gas cools down the adsorbent that moisture is precipitated, and inhales
Attached dose cools, and the adsorbent after cooling can adsorb the moisture in flue gas again, and cooling gas absorbs
The heat of adsorbent, temperature are increased by heating, and the cooling zone of rotary dehumidifier 2 is discharged in the cooling gas after heating, and by cold
But the cooling air for recycling heat is sent into boiler by wind turbine 6 by pipeline, can save fuel.
Claims (4)
1. a kind of moisture that absorbs carries out de- white wet type fume sweetening device comprising desulfuration absorbing tower, chimney, cooling blower,
It is characterized in that：It further includes rotary dehumidifier, and the heat medium import of the rotary dehumidifier is connected with main air blower, institute
The Crude product input for stating rotary dehumidifier connects the gas inlet of the desulfuration absorbing tower, and the rotary dehumidifier takes off
Sulphur gas inlet connects the exhanst gas outlet of the desulfuration absorbing tower, and the desulfurization fume of the rotary dehumidifier exports described in connection
Chimney.
2. a kind of moisture that absorbs according to claim 1 carries out de- white wet type fume sweetening device, it is characterised in that：Institute
It states rotary dehumidifier and uses rotary adsorption type dehumidifier, silica gel absorber is equipped in the rotary dehumidifier；The rotation
Formula dehumidifier is equipped with cooling medium inlet, cooling media outlet, and the cooling medium inlet connection of the rotary dehumidifier is cold
The cooling media outlet in source, the rotary dehumidifier is connected with the cooling blower.
3. a kind of moisture that absorbs according to claim 1 carries out de- white wet type fume sweetening device, it is characterised in that：Institute
It is tube structure to state desulfuration absorbing tower, and demister setting up and down, spray tube, the desulfurization are equipped in the desulfuration absorbing tower
The gas inlet on absorption tower is set to below the spray tube, and the desulfuration absorbing tower bottom is equipped with slurry discharge ports, gypsum is arranged
It exports, the spray tube, the slurry discharge ports top is connected by pipeline after the slurry discharge ports connection slurry circulating pump
The desulfuration absorbing tower be equipped with slurry inlet.
4. a kind of moisture that absorbs according to claim 3 carries out de- white wet type fume sweetening device, it is characterised in that：Institute
State in desulfuration absorbing tower staggered row up and down show four groups described in spray tube, and the height of spray tube described in every group is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810417064.XA CN108392975A (en) | 2018-05-04 | 2018-05-04 | A kind of moisture that absorbs carries out de- white wet type fume sweetening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810417064.XA CN108392975A (en) | 2018-05-04 | 2018-05-04 | A kind of moisture that absorbs carries out de- white wet type fume sweetening device |
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| Publication Number | Publication Date |
|---|---|
| CN108392975A true CN108392975A (en) | 2018-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810417064.XA Pending CN108392975A (en) | 2018-05-04 | 2018-05-04 | A kind of moisture that absorbs carries out de- white wet type fume sweetening device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330421A (en) * | 2020-03-25 | 2020-06-26 | 邹杰 | Device and method for eliminating white smoke of chimney |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101318097A (en) * | 2008-07-14 | 2008-12-10 | 广州捷达莱堡通用设备有限公司 | Dehumidification system for runner |
| CN107366926A (en) * | 2017-07-19 | 2017-11-21 | 上海汉卓能源科技有限公司 | A kind of flue gas for wet desulphurization takes off white system and method |
| CN208553728U (en) * | 2018-05-04 | 2019-03-01 | 无锡雪浪环境科技股份有限公司 | Moisture is absorbed to carry out taking off white wet type fume sweetening device |
-
2018
- 2018-05-04 CN CN201810417064.XA patent/CN108392975A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101318097A (en) * | 2008-07-14 | 2008-12-10 | 广州捷达莱堡通用设备有限公司 | Dehumidification system for runner |
| CN107366926A (en) * | 2017-07-19 | 2017-11-21 | 上海汉卓能源科技有限公司 | A kind of flue gas for wet desulphurization takes off white system and method |
| CN208553728U (en) * | 2018-05-04 | 2019-03-01 | 无锡雪浪环境科技股份有限公司 | Moisture is absorbed to carry out taking off white wet type fume sweetening device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330421A (en) * | 2020-03-25 | 2020-06-26 | 邹杰 | Device and method for eliminating white smoke of chimney |
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Application publication date: 20180814 |
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