CN109351136A - A kind of wet-method desulfurized fume dehumanization method and equipment - Google Patents
A kind of wet-method desulfurized fume dehumanization method and equipment Download PDFInfo
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- CN109351136A CN109351136A CN201811359164.8A CN201811359164A CN109351136A CN 109351136 A CN109351136 A CN 109351136A CN 201811359164 A CN201811359164 A CN 201811359164A CN 109351136 A CN109351136 A CN 109351136A
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- 238000000034 method Methods 0.000 title claims abstract description 61
- 239000003517 fume Substances 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000000463 material Substances 0.000 claims abstract description 45
- 239000002250 absorbent Substances 0.000 claims abstract description 36
- 230000018044 dehydration Effects 0.000 claims abstract description 4
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 4
- 238000001179 sorption measurement Methods 0.000 claims description 29
- 238000006477 desulfuration reaction Methods 0.000 claims description 23
- 230000023556 desulfurization Effects 0.000 claims description 21
- 230000000694 effects Effects 0.000 claims description 7
- 230000001413 cellular effect Effects 0.000 claims description 5
- 238000005213 imbibition Methods 0.000 claims description 3
- 230000002745 absorbent Effects 0.000 claims description 2
- 210000002268 wool Anatomy 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 70
- 239000003546 flue gas Substances 0.000 abstract description 70
- 230000008569 process Effects 0.000 abstract description 18
- 239000003463 adsorbent Substances 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000000243 solution Substances 0.000 description 18
- 238000005245 sintering Methods 0.000 description 11
- 235000019504 cigarettes Nutrition 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 8
- 238000007791 dehumidification Methods 0.000 description 8
- 229920001971 elastomer Polymers 0.000 description 8
- 229920000742 Cotton Polymers 0.000 description 7
- 230000003009 desulfurizing effect Effects 0.000 description 7
- 238000009833 condensation Methods 0.000 description 6
- 230000005494 condensation Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 5
- 235000019738 Limestone Nutrition 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000006028 limestone Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 230000000274 adsorptive effect Effects 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- MXWHMTNPTTVWDM-NXOFHUPFSA-N mitoguazone Chemical compound NC(N)=N\N=C(/C)\C=N\N=C(N)N MXWHMTNPTTVWDM-NXOFHUPFSA-N 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 206010019133 Hangover Diseases 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- -1 device Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- 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
-
- 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
Landscapes
- 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)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention provides a kind of wet-method desulfurized fume dehumanization method and equipment, wherein method provided by the invention is to adsorb the vapor in flue gas using the good water suction of water-absorbent material and dewatering, mitigates flue gas trailing phenomenon.And the dehydration of adsorbent material only needs to complete in a manner of physical impact, avoids traditional adsorbent material and needs regenerated process procedure, simple process, easy to operate, low energy consumption, at low cost.
Description
Technical field
The invention belongs to industrial waste gas process fields, and in particular to a kind of flue gas dehumidifying after wet desulphurization takes off white technology.
Background technique
Coal-burning boiler, sintering machine using wet desulphurization it is out of stock after, become mesh the problems such as " the chimney rain " of generation and " white cigarette "
The emphasis of preceding environmental protection concern, especially temperature is lower, the biggish quiet wind weather of humidity, a large amount of steam is in cold air in flue gas
Under effect, it is condensed into small water droplet, CO in flue gas rapidly2Etc. high concentrations sour gas, then along with small water droplet formed with
Growth, is constantly dissolved among water droplet, and reduce the steam partial pressure of water drops surface, makes water droplet fast growth, become dense
Acid white cigarette, acid white cigarette are adsorbed by the PM haze grain in air again, can further decrease the steam partial pressure on its surface, are reduced empty
Air humidity degree, and reach its metastable state that balances each other, become the haze of pollution environment.Therefore, quiet wind especially in winter
Weather reduces the white cigarette that chimney excludes, and efficiently contributes to mitigate haze, this has become industry common recognition.
The common method of existing elimination white cigarette is substantially exactly to concede the flue gas of chimney in mixing, cooling, the expansion with air
Dissipate during, temperature do not drop to the dew-point temperature of water vapour also hereinafter, just make flue gas and steam therein be diffused into air it
In.Therefore, dehumidification, heating are carried out to flue gas, the physical basis for the white cigarette that exactly removes smoke, common method has:
(1) condensation method: generally using dividing wall type heat exchanger or directly to flue gas spraying cooling.Using dividing wall type heat exchanger
When, flue gas is mutually isolated by heat exchanger with cooling water, and vapor condenses and transfer heat to cooling water in heat exchanger surface,
Exchanger base is equipped with recyclable device and collects condensed water.When cooling down using direct contact spray, pass through spray column or packed tower
Etc. modes to flue gas cool-down, Water vapor condensation is simultaneously mixed into cooling water, and the latent heat of obvious heat of smoke and vapor enters cooling water.Between
Wall type heat exchanger thermal resistance is larger, but cooling water side water stabilization, while isolating condensed water convenient for processing；Direct fountain effect
Preferably, the enrichment of the ingredients such as dust, acid, salt but in flue gas handle system water outlet need to reach reuse requirement.
(2) absorption process: migration of the solution absorption method based on steam pressure difference driving vapor between solution and flue gas, simultaneously
The release and absorption of the latent heat of vaporization are completed, technique includes dehumidifying and two big links of regeneration.Made using the solution with moisture pick-up properties
For dehumidizer, such as the aqueous solution of lithium bromide, lithium chloride, calcium chloride, triethylene glycol substance, is directly contacted with flue gas and realize moisture
Migration, when the steam partial pressure of hygroscopic solution is lower than the steam partial pressure of flue gas, the moisture in flue gas is migrated to solution,
As dehumidification process, regenerative process that is on the contrary then being solution.Since Estimation of Equilibrium Partial Pressures is far below the steam partial pressure in flue gas, with
Condensation method is compared, and solution absorption method can recycle more vapor.
(3) the water-borne formula flue gas reheat system of MGGH: MGGH is mainly by flue gas cool-down side heat exchanger, flue gas heating side heat exchange
The composition such as device, water circulating pump, auxiliary steam heater and drain tank, heating agent expansion drum, water charging system, soot blower system.Utilize water
As medium, by water-cycling mode by the heat absorption of high-temperature flue gas before desulfurization, for heating the neat stress after desulfurization, promoted
The temperature of neat stress improves the rising height of flue gas emission, reduces the flooring concentration of pollutant.Untreated hot fume is returned by heat
It receives device and recycles air preheater exiting flue gas waste heat, deduster inlet temperature is made to be reduced to 90~100 DEG C by 120~150 DEG C.Smoke temperature
Reduction promotes dust specific resistance accordingly to reduce, and then greatly improves efficiency of dust collection, and effectively removes most in flue gas
SO2 meets low emission requirement, saves wet desulfurizing process water consumption, reduces the discharge of chimney steam.The heat of heat regenerator recycling
Amount is transported by hot media to flue gas reheater, desulfurization exit gas temperature is increased to 80 DEG C or so by about 50 DEG C, to keep away
Exempt from chimney landing drop, mitigates chimney corrosion, improve flue gas emission rising height, eliminate " plume " visual pollution.
Patent No. CN106268198A discloses a kind of dehumidifying of desulfurization fume and water reclamation system and method, including dehumidifying
Device, heat exchanger, flash vessel and vapour compression machine, wherein hygroscopic solution is contacted with desulfurization fume in dehumidifier, removes desulfurization fume
In moisture, obtain weak solution；The weak solution flowed out from dehumidifier enters the heat exchanger and is heated, and it is dilute molten to obtain high temperature
Liquid；The high temperature weak solution flowed out from heat exchanger enters flash vessel and is flashed, and obtains regenerated hygroscopic solution and low pressure water vapor,
Hygroscopic solution enters dehumidifier, dehumidifies to desulfurization fume, and low pressure water vapor enters described change after vapour compression machine compresses
Hot device heats the weak solution.Condensation heat release is used as after improving boiling point by the water vapour that compression flash process generates
The heat source of weak solution utmostly reduces desulfurization so that the regeneration institute calorific requirement of weak solution does not need extraneous offer
The energy consumption and operating cost of smoke solution dehumidification system.
Patent No. CN103638784A is related to a kind of external heated type wet flue gas dehumanization method and dehumidification system, feature exist
In: external heated type wet flue gas dehumidification system is set, is reheated by extraction section wet flue gas, this part cigarette after heating
Gas refills in low temperature wet flue gas again after becoming high-temperature flue gas, to promote the final exhaust temperature of flue gas；It is taken out in chimney inlet
Part medium temperature flue gas is taken, is sent into the external vapor heat exchanger of external heated type wet flue gas dehumidification system, heating steam is from fire
The auxiliary steam in power power plant or other heat sources.
Patent No. CN105688616A is related to a kind of condensation of wet-method desulfurized fume except haze takes off white equipment and process, wraps
Include flue gas dehumidifier, water spray tower, desulfurizing tower and flue gas deep freezer, pretreated flue gas first pass through flue gas dehumidifier with will be into
Enter chimney discharge flue gas exchange heat, flue gas is entered in water spray tower by air-introduced machine, the flue gas after spray process into
Enter desulfurizing tower, the flue gas after desulfurization process carries out different disposal according to environment temperature difference, when ambient temperatures are low, keeps environment empty
Gas exchanges heat in flue gas deep freezer under air blower effect with the flue gas after desulfurization, and the air after preheating is for supplying production
System realizes and carries out recuperation of heat utilization, reduces the fuel energy consumption of production system.It can be seen that in the prior art to desulfurization process after
The method of flue gas dehumidifying is all relatively cumbersome, and technique is more complex, takes a long time, and needs a kind of easy to operate, quick, at low cost
The wet cigarette dehumanization method of desulfurization.
The content of background technology part is only the technology that inventor is known, not the existing skill of natural representative this field
Art.
Summary of the invention
For the prior art, there are one or more of problems, and in one aspect of the invention, the present invention provides one kind
Wet-method desulfurized fume dehumanization method is to pass through using the moisture in the desulfurization fume being discharged after wet desulphurization with physics
The water-absorbent material of water imbibition removes.
Preferably, above-mentioned water-absorbent material can be dehydrated by physical action.
Preferably, above-mentioned physical action is physical impact effect.
Preferably, above-mentioned water-absorbent material is water suction rubber cotton.
In another aspect of this invention, the present invention provides a kind of using above-mentioned wet-method desulfurized fume dehumanization method
Equipment, the equipment include:
One or more adsorption moisture eliminators: water-absorbent material is provided in one or more of adsorption moisture eliminators and for squeezing
Press the pressurizing unit of the water-absorbent material；
The wherein moisture that the water-absorbent material is absorbed by the extruding discharge of the pressurizing unit.
Preferably, above-mentioned water-absorbent material is set to inside the adsorption moisture eliminator with cellular.
Preferably, above-mentioned pressurizing unit is provided with automation pressure applying means.
Preferably, above equipment further includes desulfurizer, the desulfurizer and one or more of adsorption moisture eliminators
It is connected to by one or more valves, the desulfurization fume being discharged from the desulfurizer can flow to the absorption by the valve
Dehumidifier；And/or
The desulfurizer is connected to one or more of adsorption moisture eliminators by pipeline, is arranged from the adsorption moisture eliminator
Moisture out flows to the desulfurizer by the pipeline.
Preferably, above-mentioned valve is electric butterfly valve.
Preferably, above-mentioned adsorption moisture eliminator is cylindrical body, base diameter 1m, a height of 3m.
Preferably, above-mentioned adsorption moisture eliminator is two.
Based on above technical scheme, the present invention provides the flue gas dehumidifying after one kind wet desulphurization simple to operate, takes off
Whitening method, core are to adsorb the vapor in flue gas using the good water suction of water-absorbent material and dewatering, mitigate flue gas and drag
Tail phenomenon.The water of absorption is precipitated by physical impact water-absorbent material, the water after desorption is used for desulphurization system moisturizing.
Method of the invention is to increase adsorption moisture eliminator after desulfurizing tower, water suction rubber material (such as water suction rubber cotton) with
Cellular is distributed in inside dehumidifier, and desulfurization wet flue gas contacts in dehumidifier with water suction rubber cotton, and moisture is absorbed in flue gas,
Absorbent wool dehydration is realized by the pressurizing unit above and below dehumidifier, and the continuous of dehumidification device is realized by electric butterfly valve free switching
Operation.The moisture of water-absorbent material abjection can be pumped to desulfurizer limestone slurry liquid preparing system by water.
The present invention is embodied in the following:
(1) it is put forward for the first time the adsorbent material to dehumidify using water-absorbent material as flue gas.
(2) dehydration of adsorbent material only needs to complete in a manner of physical impact, and avoiding traditional adsorbent material needs
Want regenerated process procedure.Simple process, easy to operate, low energy consumption, at low cost.
(3) moisture of water-absorbent material abjection can be used for the preparation of lime stone slurry, reduce sweetening process water consume.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow diagram of the method for the present invention；
In attached drawing:
1: adsorption moisture eliminator；
2: water-absorbent material；
3: pressurizing unit；
4: electric butterfly valve；
5: water pump；
6: desulfurizer；
7: limestone slurry liquid preparing system.
Specific embodiment
Hereinafter, certain exemplary embodiments are simply just described.As one skilled in the art will recognize that
Like that, without departing from the spirit or scope of the present invention, described embodiment can be modified by various different modes.
Therefore, attached drawing and description are considered essentially illustrative rather than restrictive.
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
The purpose of the present invention is to provide a kind of flue gas dehumanization methods, reduce the generation of flue gas trailing phenomenon.Of the invention
Purpose will be realized by following specific embodiments:
In the first embodiment of the present invention, the present invention provides a kind of wet-method desulfurized fume dehumanization method, is
It is removed using the moisture in the desulfurization fume being discharged after wet desulphurization by the water-absorbent material with physics water imbibition.
According to a preferred embodiment of the present invention, above-mentioned water-absorbent material can be dehydrated by physical action, such as can be led to
Physical impact mode is crossed to be dehydrated.
According to a preferred embodiment of the present invention, above-mentioned water-absorbent material is water suction rubber cotton.Disclosure according to the present invention,
Those skilled in the art are also contemplated that out other water-absorbent materials, these are all within protection scope of the present invention.
In second embodiment of the present invention, as shown in Figure 1, utilizing above-mentioned wet desulphurization the present invention provides a kind of
The equipment of flue gas dehumanization method afterwards, the equipment include:
One or more adsorption moisture eliminators 1, are shown in FIG. 1 two adsorption moisture eliminators in left and right, and those skilled in the art answer
Work as understanding, adsorption moisture eliminator can also be 1,3,4,5 etc., these are all within protection scope of the present invention, described
Adsorption moisture eliminator can be used steel material and be made, and suitable shape and size are made according to actual needs, such as adsorption and dehumidification
Device can be cylinder, and base diameter 1m, high about 3m can also be the shapes such as cube shaped, cuboid.The wherein absorption
It is provided with water-absorbent material 2 and the pressurizing unit 3 for squeezing the water-absorbent material in dehumidifier, the water-absorbent material 2 can be with
Cellular is set in the adsorption moisture eliminator 1, and more effectively to absorb the moisture in wet cigarette, such as the water-absorbent material can be with
For water suction rubber cotton.The pressurizing unit 3 can be set in the one or both ends of adsorption moisture eliminator for squeezing water-absorbent material 2,
Pressurizing unit 3 can be porous, to be discharged through the dewatered flue gas of water-absorbent material, can also be arranged on pressurizing unit 3
There is pipeline, the moisture being discharged from water-absorbent material can be arranged via pipeline to outside, be also provided with water pump on the pipeline
5, so that moisture is more efficiently discharged, or the moisture that water-absorbent material 2 is discharged is pumped by the desulfurization being connected to pipeline by water pump 5 and is filled
The limestone slurry liquid preparing system 7 set and (will be described hereinafter) reduces sweetening process water consume.May be used also on the pressurizing unit 3
It, can be according to exhaust gas volumn, humidity of flue gas and adsorbent material to be provided with automation pressure applying means (not shown)
Saturated water adsorptive value calculate switching time of dehumidifier, realize the automatic running of pressurizing unit 3.
According to a preferred embodiment of the present invention, above equipment further includes desulfurizer 6, the desulfurizer with it is described
One or more adsorption moisture eliminators 1 pass through one or more valves 4 and are connected to, and the desulfurization fume being discharged from the desulfurizer can lead to
It crosses the valve 4 and flows to the adsorption moisture eliminator 1, contacted with the water-absorbent material 2 in the adsorption moisture eliminator 1, to realize suction
Receive the moisture in the wet cigarette of desulfurization.The desulfurizer 6 can be any desulfurizer in the prior art, such as desulfurizing tower.Institute
Stating valve 4 can be electric butterfly valve, or the valve of any other type in the art, as long as can be realized the present invention
Purpose.
Embodiment:
The sintering flue gas sulfur content that steel combines sintering machine is higher, particularly with largely using the sintering enterprise of domestic Iron concentrate
Industry, due in domestic Iron concentrate sulfur content compare with Australia mine it is much higher, when being sintered using domestic Iron concentrate, sintering flue gas
Middle sulfur content multidigit is in 2000mg/m3More than.Sintering flue gas mostly uses traditional wet desulfurizing process, i.e. " lime stone-at present
Gypsum " also has a small amount of sintering unit using semi-dry desulphurization, but due to related causes such as operation, equipment, and desulfuration efficiency is universal
Design standard is not achieved.
After northern China integrated iron and steel works sintering flue gas uses wet desulphurization process, " hangover " phenomenon of sintering flue gas
Very serious, under the meteorological condition of quiet wind, plume length is up to more than ten kilometers；Meanwhile high temperature enters atmosphere containing wet flue gas
In suddenly cool down after, the Water vapor condensation in flue gas falls at water droplet, sintering chimney be formed about " misty rain ".
Flue gas after sintering desulfuration is taken to be tested, 86~140 DEG C of entrance flue gas temperature, 70~100g/m of water capacity3, for drop
The temperature and humidity of low subsequent dehumidifying process, are provided with cold water sprays device before desulfurizer mist eliminator, laggard through spraying treatment
Enter 58~114 DEG C of flue-gas temperature of dehumidifier, 54~86g/m of water capacity3.Increase by two dehumidifiers after desulfurizing tower to realize
Flue gas continuous operation, dehumidifier use steel material, base diameter 1m, high about 3m, using water suction rubber cotton as adsorbent material,
Cellular is made in water suction rubber cotton, tightly packed into dehydrating breather, dehydrating breather bottom and top are equipped with automation pressure and apply
Device calculates the switching time of dehumidifier according to the saturated water adsorptive value of exhaust gas volumn, humidity of flue gas and adsorbent material, realizes dress
The automatic running set.After dehumidifier adsorbs, water capacity is reduced to 29~38g/m in exiting flue gas3, effect on moisture extraction is obvious, knot
Fruit the following table 1.By facts have proved the method for the present invention may be implemented flue gas dehumidifying take off it is white.
Table 1: each embodiment effect on moisture extraction
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (10)
1. a kind of wet-method desulfurized fume dehumanization method, which is characterized in that using in the desulfurization fume being discharged after wet desulphurization
Moisture is removed by the water-absorbent material with physics water imbibition.
2. wet-method desulfurized fume dehumanization method described in claim 1, which is characterized in that the water-absorbent material can pass through physics
Effect dehydration.
3. wet-method desulfurized fume dehumanization method of any of claims 1 or 2, which is characterized in that the water-absorbent material is industry
Absorbent wool.
4. a kind of equipment using the wet-method desulfurized fume dehumanization method of any of claims 1-3, feature exist
In the equipment includes:
One or more adsorption moisture eliminators: water-absorbent material is provided in the adsorption moisture eliminator and for squeezing the water-absorbent material
Pressurizing unit；
The wherein moisture that the water-absorbent material is absorbed by the extruding discharge of the pressurizing unit.
5. equipment as claimed in claim 4, which is characterized in that the water-absorbent material is set to the adsorption moisture eliminator with cellular
It is internal.
6. equipment as claimed in claim 4, which is characterized in that the pressurizing unit is provided with automation pressure applying means.
7. equipment as claimed in claim 4, which is characterized in that the equipment further includes desulfurizer, the desulfurizer and institute
It states one or more adsorption moisture eliminators and passes through one or more valve connections, the desulfurization fume being discharged from the desulfurizer can lead to
It crosses the valve and flows to the adsorption moisture eliminator；And/or
The desulfurizer is connected to one or more of adsorption moisture eliminators by pipeline, is discharged from the adsorption moisture eliminator
Moisture flows to the desulfurizer by the pipeline.
8. equipment as claimed in claim 4, which is characterized in that the valve is electric butterfly valve.
9. equipment as claimed in claim 4, which is characterized in that the adsorption moisture eliminator base diameter is 1m, a height of 3m.
10. equipment described in any one of claim 4-9, which is characterized in that the adsorption moisture eliminator is two.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811359164.8A CN109351136A (en) | 2018-11-15 | 2018-11-15 | A kind of wet-method desulfurized fume dehumanization method and equipment |
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| CN201811359164.8A CN109351136A (en) | 2018-11-15 | 2018-11-15 | A kind of wet-method desulfurized fume dehumanization method and equipment |
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| CN109351136A true CN109351136A (en) | 2019-02-19 |
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| CN201811359164.8A Pending CN109351136A (en) | 2018-11-15 | 2018-11-15 | A kind of wet-method desulfurized fume dehumanization method and equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112696927A (en) * | 2020-12-21 | 2021-04-23 | 卢惠清 | Metal smelting furnace with environment-friendly function for metal smelting |
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