CN106731594A - It is a kind of while changing the high-efficiency wet-desulfurizing method and device of flow field and chemical fields - Google Patents
It is a kind of while changing the high-efficiency wet-desulfurizing method and device of flow field and chemical fields Download PDFInfo
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- CN106731594A CN106731594A CN201611015082.2A CN201611015082A CN106731594A CN 106731594 A CN106731594 A CN 106731594A CN 201611015082 A CN201611015082 A CN 201611015082A CN 106731594 A CN106731594 A CN 106731594A
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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
- B01D53/507—Sulfur oxides by treating the gases with other liquids
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Abstract
The present invention discloses a kind of while changing the high-efficiency wet-desulfurizing device in flow field and chemical fields, includes absorption tower, primary washing system, flue gas homogenization system, carries effect washing system and the solidifying combination removing system of converging of cloud multi-pollutant；This change simultaneously the high-efficiency wet-desulfurizing device of flow field and chemical fields via two kinds just different pH value slurries areas reach high-efficiency desulfurization, and further improve desulfuration efficiency by being homogenized flue gas flow field mode；Employ new and effective cloud and multi-pollutant combined depth removing means carries out efficiently converging removing to particulate matter and droplet, while realizing the efficient Collaborative Control removing of multi-pollutant.
Description
Technical field
The invention belongs to flue gases purification field, and in particular to one kind is directed to SO2And the multi-pollutant such as particulate matter
Depth puies forward effect removing minimum discharge system.
Background technology
As thermal power plant's atmosphere pollution control enters minimum discharge stage, the control of thermoelectricity SO 2 from fume concentration of emission
It is required that from the 200mg/m of standard GB/T 13223-20113It is down to 35mg/m3Below.At present, the conventional limestone-stone of application
Cream wet desulfurizing process sprays single pH value control using single column, and desulfuration efficiency is generally 95%, is set by simple amplification is conservative
Meter, has been difficult to meet new emission control requirement, and have the problems such as building and run uneconomical, adaptability for working condition is poor.
Secondly, traditional dust pelletizing system directly reaches the big cost of minimum discharge difficulty greatly, and traditional desulfurization technology accompanies efficiency of dust collection is low, in addition
Absorption tower band slurry reason, it is granular material discharged after desulfurization to be difficult to meet ultralow requirement.Meanwhile, carry out ultralow row currently for sulphur coal
Also there is larger difficulty in the technology put, it is difficult to reach the requirement of minimum discharge.
According to further investigation and analysis to desulphurization mechanism, when slurry pH value control when low interval, can be carried in desulfurizing tower
Liquid phase reactor speed high, accelerates absorbent --- dissolving, the oxidation of promotion accessory substance gypsum and the crystallization of lime stone, after washing
The stable curing and salt-forming conversions of sulfur dioxide, promote desulfurization.When pH value control can improve slurries to flue gas when high interval
The washing absorption speed of middle sulfur dioxide.Traditional single column list pH value control can only look for one with respect to compromise between height pH
Control range, it is impossible to thoroughly solve this contradiction.The dust removal integrated technological system resistance of partial desulfurization of new opplication is big, load adaptivity
Poor, the high energy consumption of property, it is difficult to realize SO2, the integrative coordinated improvement of multi-pollutant such as particulate matter.Therefore need exploitation one kind can
High and low pH value space physics subregion washing, the storage of absorbent chemistry subregion, flow field homogenizing, particulate matter, droplet, multi-pollutant association
Taken into account simultaneously with control, the technology and equipment of energy saving of system is realized in homogenizing flow field to reduce flue gas flow passage resistance, realized further
Desulfurization low energy consumption puies forward effect, while removing particulate matter, the multi-pollutant such as droplet, adapt to new environment protection emission requirement.
Therefore, it is that those skilled in the art are badly in need of to develop a kind of high-efficiency desulfurization method or device for problem above
The problem of solution.
The content of the invention
To solve the above problems, the invention discloses a kind of while changing the high-efficiency wet-desulfurizing method in flow field and chemical fields
And device.
In order to achieve the above object, the present invention provides following technical scheme：
It is a kind of while change the high-efficiency wet-desulfurizing method of flow field and chemical fields, desulfurization original flue gas is passed through behind absorption tower according to pH
Value 4.5~5.3 and 5.8~6.4 carries out chemical subregion, primary washing is carried out respectively and effect washing is proposed, while by absorbing
Cellular structure in tower is homogenizing to desulfurization original flue gas flow field.
Invention also provides a kind of device for realizing changing flow field and the high-efficiency wet-desulfurizing method of chemical fields simultaneously,
Direct of travel according to desulfurization original flue gas includes primary washing system, flue gas homogenization system, carries effect washing system and dirt successively
The solidifying remittance of mist multi-pollutant combines removing system, and is mounted in absorption tower；
The bottom on absorption tower connects former smoke inlet pipe by gas approach, and top connects neat stress outlet by exhanst gas outlet
Pipe；
Primary washing system is made up of low pH circulating pumps, primary shower, primary Washing spray nozzle and primary stock tank；Low pH circulations
Pump is connected with primary shower；Primary Washing spray nozzle is installed and is communicated on primary shower；Primary stock tank is located at absorption tower bottom；
Flue gas homogenization system is that honeycomb fashion homogenizing carries effect fluid collection device, including interim drip tray, homogenizing wireway and block pulp cap；Face
When drip tray surface be uniformly provided with honeycomb hexagonal hole；Homogenizing wireway is the hexagonal tube being engaged with honeycomb hole, is installed
In honeycomb hole, and it is connected with the bottom of block pulp cap；Block pulp cap coordinates the top for being fixed on honeycomb hexagonal hole；
Carry effect washing system by pH circulating pumps high, carry effect shower, put forward effect and Washing spray nozzle and carry effect stock tank；PH circulating pumps high with
Effect shower is carried to be connected；Carry effect Washing spray nozzle and install and be communicated in and carry effect shower；Carry effect stock tank to be placed in outside absorption tower, by putting forward effect
Slurries extraction pipeline carries effect fluid collection device and is connected with honeycomb fashion homogenizing.
The solidifying combination removing system of converging of cloud multi-pollutant is made up of primary cloud stripper and DL deep purifier, primary
Locating access between cloud stripper and DL deep purifier has depth Flushing nozzle；DL deep purifier include purification disk with
Spiral board；Purification disk is uniformly provided with exhaust gases passes along its axial direction；Exhaust gases passes are distributed in purification disk in cellular；Spiral board is
Rotary louvre spiral board.
Further, primary shower is located at gas approach top；Honeycomb fashion homogenizing fluid collection device is located on primary shower
Side；Carry effect shower and be located at honeycomb fashion homogenizing fluid collection device top；Primary cloud stripper is located at and carries effect shower top；DL depth
Degree clarifier is located at primary cloud stripper top.
Further, primary cloud stripper be Flat-plate demisting device or ridge type demister and it is matched just
Level Flushing nozzle.
Further, primary stock tank cooperation is provided with the first oxidation air spray gun and the first agitator, carries effect oar pond and coordinates
Second oxidation air spray gun and the second agitator are installed.
Further, block pulp cap is the block pulp of falling pigtail cap；Interim drip tray is additionally provided with arc with the junction of homogenizing wireway
Line chamfering.
Further, the surface of exhaust gases passes and spiral board is equipped with hydrophobic antiscale surface layer, and exhaust gases passes is through-flow
10% of section more than absorption tower section.
Further, low pH circulating pumps and pH circulating pumps high have been accessed plus slurry is managed, plus are filled with absorbent in slurry pipe；Inhale
Receipts agent is lime stone slurry.
Present invention firstly provides a kind of while change the high-efficiency wet-desulfurizing method of flow field and chemical fields, by according to pH
The height of value carries out chemical subregion washing, and desulfurization original flue gas flow field is carried out by the cellular structure in absorption tower
Change.
And present invention also offers a kind of high-efficiency wet-desulfurizing method that can realize changing flow field and chemical fields simultaneously
Device, by absorption tower, primary washing system, flue gas homogenization system, put forward effect washing system and the solidifying remittance group of cloud multi-pollutant
Close removing system composition.
Wherein primary washing system is made up of low pH circulating pumps, primary shower, primary Washing spray nozzle, primary stock tank.It is low
PH circulating pumps are connected with primary shower, and the input quantity of primary shower determines according to desulfurization input condition；Primary Washing spray nozzle
On primary shower, slurries are sufficiently contacted with flue gas with vaporific ejection in primary scrubbing section, to be changed
Learn reaction；Primary stock tank is located at and absorbs tower bottom, directly collects the low ph value washing slurries that primary Washing spray nozzle spray falls.Just
The slurry pH value control of level stock tank can improve liquid phase reactor speed when low interval, accelerate the dissolving of absorbent-lime stone, promote
Accessory substance gypsum is aoxidized and crystallized, and beneficial to the stable curing and salt-forming conversions of sulfur dioxide after washing, promotes desulfurization.
Flue gas homogenization system is honeycomb fashion homogenizing and carries effect fluid collection device, by interim drip tray, homogenizing wireway and block pulp cap
Composition；The surface of interim drip tray is uniformly provided with honeycomb hexagonal hole；Homogenizing wireway is the hexagon being engaged with honeycomb hole
Pipe, is installed in honeycomb hole, and be connected with the bottom of block pulp cap；Block pulp cap coordinates the top for being fixed on honeycomb hexagonal hole.
Honeycomb fashion homogenizing carries effect fluid collection device integrally can be using acidproof resistance to, corrosion resistant break-in gold（Titanium alloy, dual phase steel, 316L etc.）Or
Fiberglass makes, it would however also be possible to employ outer lining or anticorrosion with painting high-abrasive material in carbon steel（Glass flake, rubber and various coatings）.This
Invention carries effect fluid collection device and can realize by the honeycomb fashion homogenizing using original creation：1）It is homogenized flow field, preventing should local slurry flow rate
It is too fast and reduce desulfuration efficiency；2）Splash slurry and fly up and washed away with air supporting, realize that first time desulfurization proposes effect and micronic dust removal；3）Pigtail
Can cause that the flue gas for rising rotates rapidly dispersion with uniformly along smooth camber line face, reduce flue gas flow passage resistance, relatively
The structures such as traditional tray, the rotation remittance coupling applied at present, gas through-flow resistance is smaller；4）Honeycomb structure, through-flow section is more than
Golden section area, mechanical mechanism stabilization, device materials consumption is small；5）By under exhaust branch pipe part speedup flue gas, promotion
Flue fog drip and particulate matter collision reunion, drop and soluble contaminants drip washing that layer is carried；6）Streamline Design and hydrophobicity table
Face is processed, and the self-cleaning on its surface can be realized by entrained saturation wet flue gas itself condensate, prevents and treats pickup, there is automatically cleaning
The beneficial effects such as function.
Carry effect washing system by pH circulating pumps high, carry effect shower, carry effect Washing spray nozzle, carry effect stock tank constitute.PH high is followed
Ring pump is connected with effect shower is carried, and the input quantity for carrying effect shower determines according to desulfurization input condition；Effect Washing spray nozzle is carried to install
Carry effect shower on, its by slurries it is vaporific ejection with flue gas carry effect scrubbing section sufficiently contacted and carry out chemistry instead
Should；Propose effect stock tank collection and carry the high ph-values washing slurries that effect carries effect Washing spray nozzle spray, be placed in outside absorption tower, by carrying effect slurries
Extraction pipeline carries effect fluid collection device and is connected with honeycomb fashion homogenizing, constitutes independent loop.The control of effect stock tank slurry pH value is proposed high interval
When can improve washing absorption speed of the slurries to sulfur dioxide in flue gas.
The solidifying combination removing system of converging of cloud multi-pollutant is made up of primary cloud stripper and DL deep purifier, primary
The selection of cloud stripper for any one in Flat-plate demisting device or ridge type demister and matched installation just
Level is rinsed；DL deep purifier includes purification disk and spiral board；Purification disk is uniformly provided with exhaust gases passes along its axial direction；Flue gas leads to
Road is distributed in purification disk in cellular；Spiral board is rotary louvre spiral board, and primary cloud stripper is net with DL depth
The access of place up and down for changing device has rinse-system.The exhaust gases passes of DL deep purifier use honeycombed structure, flue gas is through-flow face
Product is big, and SR is small, and Stability Analysis of Structures, consumable quantity is low；Honeycomb hole inward eddy plate is rotary louvre spiral board so that flue gas revolves
Stream, particulate matter, droplet eddy flow are converged and tangent line gets rid of wall removing；Designed using streamline connection, hydrophobic antiscale surface layer, wherein streamline sets
Meter reduces flue gas flow passage resistance, enhances facility assembly self-cleaning surface function, adds the surface hydrophobicity scale control treatments of uniqueness, matches somebody with somebody
Periodic flushing is closed, pickup fouling can be effectively prevented；Matched somebody with somebody using depth Flushing nozzle is used in conjunction with primary cloud stripper, utilized
The double spray structures in unique centre reduce distance between cloud deep purifier and primary cloud stripper, reduce tower height.
Desulfurization original flue gas enter the present apparatus after, by primary washing system（Low pH circulated sprinklings washing）Pass through after desulfurization
The flue gas homogenization system homogenizing flow field of unique construction and first time desulfurization and dedusting multi-pollutant are carried entering after effect is purified and propose effect washing
Region, then by carrying effect washing system（PH circulated sprinklings washing high）Desulfurization enters primary cloud stripper after putting forward effect, removes big
Partial droplet and micronic dust, into the DL deep purifier of unique construction, the flue gas after high-effective dust-removing demisting is realized
SO2, flue dust minimum discharge, multi-pollutant deep purifying.
The present invention compared with prior art, using unique design, improves absorption tower to input condition（Such as coal, absorption
Agent, operating mode）Adaptability；There is provided a kind of efficient absorption area of the primary washing system of low pH value, the effect washing that carries of pH value high is
System high-efficiency dissolution area, achievable desulfuration efficiency is up to more than 99%, improves absorbent utilization rate close to 100%, and can to flue dust and
Other multi-pollutant cooperation-removals；Using honeycomb fashion homogenizing carry effect fluid collection device can stream field be effectively homogenized, reduce flue gas stream
Logical resistance, further increases the removal efficiency of desulfurization, flue dust；And increased DL depth on the basis of conventional demister
Degree clarifier, effectively can carry out convergence removing by particulate matter and droplet, and automatically cleaning effect is good, not pickup, realizes ultralow
Discharge and deep purifying.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is A portions enlarged drawing in the present invention；
Fig. 3 is B portions enlarged drawing in the present invention；
Fig. 4 is the structural representation of honeycomb fashion homogenizing fluid collection device in the present invention；
Fig. 5 is the structural representation of DL deep purifier in the present invention；
Fig. 6 is the C portions enlarged drawing of DL deep purifier in the present invention.
Specific embodiment
The invention provides a kind of while change flow field and the high-efficiency wet-desulfurizing method of chemical fields, desulfurization original flue gas is led to
Chemical subregion is carried out according to pH value 4.5~5.3 and 5.8~6.4 after entering absorption tower 1, primary washing is carried out respectively and effect is put forward
Washing, while homogenizing to desulfurization original flue gas flow field by the cellular structure in absorption tower 1.
What is provided for realization is of the invention as shown in Figure 1 is a kind of while changing the high-efficiency wet-desulfurizing method in flow field and chemical fields
Device, include primary washing system 2, flue gas homogenization system 7 successively according to the direct of travel of desulfurization original flue gas, carry effect washing system
System 3 and solidifying remittance of cloud multi-pollutant combine removing system 27, and may be contained within absorption tower 1.
The bottom on absorption tower 1 connects former smoke inlet pipe by gas approach 4, and top connects net cigarette by exhanst gas outlet 25
Gas escaping pipe.
Primary washing system 2 is made up of low pH circulating pumps 6, primary shower 5, primary Washing spray nozzle, primary stock tank, absorbs
Primary stock tank is formed on the bottom of tower 1, and low pH circulating pumps 6 are connected with primary shower 5, and primary Washing spray nozzle is installed and is communicated in primary
In the plane of shower 5.
As shown in Figure 2,4, flue gas homogenization system 7 is that honeycomb fashion homogenizing carries effect fluid collection device, is led by interim drip tray 11, homogenizing
Tracheae 12 and block pulp cap 13 are constituted；The surface of interim drip tray 11 is uniformly provided with honeycomb hexagonal hole 14；Being homogenized wireway 12 is
The hexagonal tube being engaged with honeycomb hole 14, is installed in honeycomb hole 14, and is connected with the bottom of block pulp cap 13；Block pulp cap 13
The top of honeycomb hexagonal hole 14 is fixed in cooperation；
Carry effect washing system 3 by pH circulating pumps 9 high, carry effect shower 8, carry effect Washing spray nozzle, carry effect stock tank 10 etc. and constitute, pH high
Circulating pump 9 is connected with effect shower 8 is carried, and proposes effect Washing spray nozzle installation and connects on effect shower 8 is carried；Carry effect stock tank 10 and be placed in suction
Receive outside tower 1, carry effect fluid collection device and be connected by carrying effect slurries extraction pipeline and honeycomb fashion homogenizing.
The solidifying combination removing system 27 of converging of cloud multi-pollutant is by 16 groups of primary cloud stripper 15 and DL deep purifier
Into primary cloud stripper 15 is the matched primary Flushing nozzle of Flat-plate demisting device；DL deep purifier 16 is wrapped
Include purification disk 17 and spiral board 18；As shown in Figure 5,6, purification disk 17 is uniformly provided with exhaust gases passes 19 along its axial direction；Exhaust gases passes
19 are distributed in purification disk 17 in cellular；Spiral board 18 is rotary louvre spiral board, such as Fig. 3, primary cloud stripper 15
It is in double depth Flushing nozzles 26 for spraying structures with being accessed in the middle of DL deep purifier 16.
Primary shower 5 is located at the top of gas approach 4, and honeycomb fashion homogenizing fluid collection device 7 is located at the primary top of shower 5, carries
Effect shower 8 is located at the top of honeycomb fashion homogenizing fluid collection device 7, and primary cloud stripper 15 is located at and carries the top of effect shower 8, DL depth
Degree clarifier 16 is located at the primary top of cloud stripper 15, after flue gas enters, is filtered successively from top to bottom.
Primary stock tank bottom coordinates installation to be provided with the first oxidation air spray gun 20 and the first agitator 21, carries the bottom of effect oar pond 10
Portion is provided with the second oxidation air spray gun 22 and the second agitator 23.
Block pulp cap 13 is the block pulp of falling pigtail cap；Interim drip tray 11 is additionally provided with camber line and falls with the junction of homogenizing wireway 12
Angle.
The surface of exhaust gases passes 19 and spiral board 18 is equipped with hydrophobic antiscale surface layer, and exhaust gases passes 19 passage section
More than the 10% of absorption tower section.
Low pH circulating pumps 6 and pH circulating pumps 9 high are accessed to be had plus slurry pipe 24.
Gas approach 4 inclines connection in the bottom of absorption tower 1, desulfurization original flue gas is entered absorption tower 1 by gas approach 4,
Being upwardly into primary washing system 2 carries out low ph value（4.5-5.3）Spray desulfurization after by honeycomb fashion be homogenized carry imitate fluid collection device 7 it is equal
Change flow field after, into carry effect washing system in；First high ph-values are carried out by carrying effect spray layer system 8（5.8-6.4）Spray is de-
Sulphur puies forward effect, afterwards into primary cloud stripper 15, most droplet and micronic dust that removing wherein contains, then by DL
Deep purifier 16 carries out high-effective dust-removing demisting, realizes SO2, flue dust minimum discharge and the deep purifying of multi-pollutant.
The method and apparatus provided using the present invention can realize that desulfuration efficiency is up to more than 99%, improve absorbent utilization rate
Close to 100%, and can to flue dust and other multi-pollutant cooperation-removals, even for current intractable sulphur coal similarly
It is applicable.
It is last it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention and non-limiting technical side
Case, it will be understood by those within the art that, those modify or equivalent to technical scheme, and
The objective and scope of the technical program are not departed from, all should be covered in the middle of scope of the presently claimed invention.
Claims (8)
1. a kind of while changing the high-efficiency wet-desulfurizing method of flow field and chemical fields, it is characterised in that：Desulfurization original flue gas is passed through
Chemical subregion is carried out according to pH value 4.5~5.3 and 5.8~6.4 behind absorption tower, primary washing is carried out respectively and effect is put forward washing
Wash, while homogenizing to desulfurization original flue gas flow field by the cellular structure in absorption tower.
2. realize as claimed in claim 1 a kind of while changing the device in flow field and the high-efficiency wet-desulfurizing method of chemical fields,
It is characterized in that：Direct of travel according to desulfurization original flue gas includes primary washing system, flue gas homogenization system, proposes effect washing successively
System and solidifying remittance of cloud multi-pollutant combine removing system, and are mounted in absorption tower；
The bottom on the absorption tower connects former smoke inlet pipe by gas approach, and top connects neat stress and goes out by exhanst gas outlet
Tracheae；
The primary washing system is made up of low pH circulating pumps, primary shower, primary Washing spray nozzle and primary stock tank；It is described
Low pH circulating pumps are connected with primary shower；The primary Washing spray nozzle is installed and is communicated on primary shower；The primary slurry
Pond is located at absorption tower bottom；
The flue gas homogenization system is that honeycomb fashion homogenizing puies forward effect fluid collection device, including interim drip tray, homogenizing wireway and block pulp
Cap；The surface of the interim drip tray is uniformly provided with honeycomb hexagonal hole；The homogenizing wireway is engaged with honeycomb hole
Hexagonal tube, is installed in honeycomb hole, and is connected with the bottom of block pulp cap；Honeycomb hexagon is fixed in the block pulp cap cooperation
The top in hole；
It is described carry effect washing system by pH circulating pumps high, carry effect shower, put forward effect and Washing spray nozzle and carry effect stock tank；The pH high
Circulating pump is connected with effect shower is carried；It is described carry effect Washing spray nozzle and install be communicated in and carry effect shower；The effect stock tank that carries is placed in
Outside absorption tower, carry effect fluid collection device and be connected by carrying effect slurries extraction pipeline and honeycomb fashion homogenizing；
The solidifying combination removing system of converging of the cloud multi-pollutant is made up of primary cloud stripper and DL deep purifier, primary
Locating access between cloud stripper and DL deep purifier has depth Flushing nozzle；The DL deep purifier includes purification
Disk and spiral board；The purification disk axially uniformly sets hexagon exhaust gases passes along it；The exhaust gases passes are distributed in cellular
In purification disk；The spiral board is rotary louvre spiral board, 5~45 ° of eddy flow angle.
3. according to claim 2 while changing the high-efficiency wet-desulfurizing device of flow field and chemical fields, it is characterised in that：Institute
Primary shower is stated positioned at gas approach top；The honeycomb fashion homogenizing fluid collection device is located at primary shower top；It is described to put forward effect
Shower is located at honeycomb fashion homogenizing fluid collection device top；The primary cloud stripper is located at and carries effect shower top；The DL
Deep purifier is located at primary cloud stripper top.
4. according to claim 2 while changing the high-efficiency wet-desulfurizing device of flow field and chemical fields, it is characterised in that：Institute
Primary cloud stripper is stated for Flat-plate demisting device or ridge type demister and matched primary Flushing nozzle.
5. according to claim 2 while changing the high-efficiency wet-desulfurizing device of flow field and chemical fields, it is characterised in that：Institute
State primary stock tank and coordinate and the first oxidation air spray gun and the first agitator are installed, it is described carry effect oar pond and coordinate the second oxygen is installed
Change air gun and the second agitator.
6. according to claim 2 while changing the high-efficiency wet-desulfurizing device of flow field and chemical fields, it is characterised in that：Institute
Block pulp cap is stated for the block pulp of falling pigtail cap；The interim drip tray is additionally provided with the anti-deposition of camber line chamfering with the junction of homogenizing wireway
Structure.
7. according to claim 2 while changing the high-efficiency wet-desulfurizing device of flow field and chemical fields, it is characterised in that：Institute
State exhaust gases passes and be equipped with hydrophobic antiscale surface layer with the surface of spiral board, and the passage section of exhaust gases passes is disconnected more than absorption tower
The 10% of face.
8. according to claim 2 while changing the high-efficiency wet-desulfurizing device of flow field and chemical fields, it is characterised in that：Institute
State low pH circulating pumps and pH circulating pumps high have been accessed plus slurry pipe, absorbent is filled with described plus slurry pipe；The absorbent is
Lime stone slurry.
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| CN110201524A (en) * | 2019-05-23 | 2019-09-06 | 新疆天富环保科技有限公司 | A kind of wet desulphurization device and method of semi-dry desulphurization ash resource utilization |
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Application publication date: 20170531 |