CN106955581B - FGD dust collection method - Google Patents
FGD dust collection method Download PDFInfo
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- CN106955581B CN106955581B CN201710290090.6A CN201710290090A CN106955581B CN 106955581 B CN106955581 B CN 106955581B CN 201710290090 A CN201710290090 A CN 201710290090A CN 106955581 B CN106955581 B CN 106955581B
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- annular groove
- elastic plate
- absorption solution
- air inlet
- flue gas
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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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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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
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/602—Oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/604—Hydroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention relates to a kind of FGD dust collection methods, this method uses a kind of desulfurizer, the desulfurizer includes the absorption tank body for containing alkaline absorption solution, the air inlet pipe and an air outlet pipe communicated with absorption tank body, air inlet pipe is located at the lower end for absorbing tank body, escape pipe is located at the upper end for absorbing tank body, annular groove is equipped in tourie body, annular groove includes the first annular groove under and in the second upper annular groove, the diameter of first annular groove is greater than the diameter of the second annular groove, the elastic plate that can be slided along the first annular groove is equipped in first annular groove, spring is equipped in second annular groove, upper wall of the both ends of spring respectively with elastic plate and the second annular groove offsets, several ventholes is offered on elastic plate.This method can effectively guarantee the concentration of the alkaline matter in alkaline absorption solution, and then the absorption to sulfur dioxide in flue gas has been effectively ensured, and reduce sulfur dioxide (SO2) emissions into air, pollute caused by air.
Description
Technical field
The invention belongs to technical field of waste gas treatment, and in particular to a kind of FGD dust collection method.
Background technique
Sulfur dioxide pollution has become an important factor for restricting China's economy, social sustainable development, therefore controls dioxy
It is imperative to change sulphur pollution.Currently, by sulfur removal technology, desulfurization before burning is can be used, in burning in locating position difference in production
Three kinds of desulfurization methods of desulfurization after desulfurization and burning.Wherein, the flue gas desulfurization after burning is to control sulfur dioxide gas in the world at present
Main means used by body pollution.There are many kinds of the desulfurization technologies, by the reactiveness of sulfur removal technology be broadly divided into dry method,
Semidry method and wet process three classes, wherein Wet Flue Gas Desulfurization Technique is easy to operate and application the most extensive with its desulfuration efficiency height.
The method of Wet Flue Gas Desulfurization Technique is equipped with alkaline absorption solution in tourie body, which is generally hydrogen-oxygen
Change sodium or calcium hydroxide solution, is also connected with air inlet pipe and an air outlet pipe on absorbing tank body, wherein air inlet pipe is normally at absorption
The downside of tank body, and extend under the liquid level of alkaline absorption solution, escape pipe is located at the upside for absorbing tank body, by the flue gas after burning
It is passed into air inlet pipe, is entered in alkaline absorption solution after air inlet pipe, the sulfur dioxide in flue gas will be absorbed with alkalinity at this time
Liquid is reacted, and the flue gas after reaction is discharged from escape pipe again, thus avoids the discharge of sulfur dioxide in flue gas.
Will appear following problem during using above method sulfur dioxide absorption: due to sulfur dioxide constantly with
Alkali substance reaction in alkaline solution, therefore this method is in use for some time, with alkaline solution neutral and alkali substance
It gradually decreases, the concentration of alkaline solution neutral and alkali substance is gradually reduced, when constantly there is the flue gas containing sulfur dioxide to be passed into
When in alkaline solution, the alkaline matter in alkaline solution also gradually decreases the absorption of sulfur dioxide, thus will lead to and is not inhaled
The sulfur dioxide harvested, into air, pollutes air with flue gas emission.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of concentration that alkaline solution neutral and alkali substance can be effectively ensured,
And then guarantee the FGD dust collection method that alkaline matter absorbs sulfur dioxide.
In order to achieve the above objectives, the invention provides the following technical scheme:
FGD dust collection method, this method use a kind of desulfurizer, and the desulfurizer includes for containing alkalinity
The absorption tank body of absorbing liquid, the air inlet pipe and an air outlet pipe communicated with absorption tank body, air inlet pipe are located at the lower end for absorbing tank body, outlet
Pipe is located at the upper end for absorbing tank body, is equipped with annular groove in tourie body, and annular groove includes the first annular groove under and upper second
Annular groove, the diameter of the first annular groove are greater than the diameter of the second annular groove, the elastic plate that can be slided along the first annular groove are equipped in the first annular groove,
Spring is equipped in second annular groove, upper wall of the both ends of spring respectively with elastic plate and the second annular groove offsets, offer on elastic plate
Several ventholes；
Method includes the following steps:
(1), alkaline absorption solution is poured into tourie body, so that air inlet pipe is located under the liquid level of alkaline absorption solution, simultaneously
The liquid level of alkaline absorption solution is flushed with the lower end surface of elastic plate；
(2), several granular calcium oxide are placed in the upper surface of elastic plate；
(3), flue gas is passed through into air inlet pipe, the alkali substance reaction in sulfur dioxide and alkaline absorption solution in flue gas,
Flue gas after reaction is discharged after passing through the venthole on elastic plate from escape pipe；
(4), when the alkali substance reaction in sulfur dioxide and alkaline absorption solution declines the concentration of alkaline matter, warp
Still contain sulfur dioxide in flue gas after alkaline absorption solution reaction, the sulfur dioxide and calcium oxide granular on elastic plate are anti-
It answers, so that elastic plate occurs flexible deformation and the active force of spring is overcome to move down along the first annular groove, on elastic plate
Calcium oxide reacts with the water in alkaline absorption solution, produces calcium hydroxide, improves the concentration of alkaline absorption solution neutral and alkali substance；
When calcium oxide is reacted with water so that the calcium oxide on elastic plate gradually decreases, under the action of the spring, elastic plate is moved upwards
And calcium oxide is separated with alkaline absorption solution；
(5) step (3) and step (4) are repeated, until completing the desulfurization process to flue gas.
Preferably, valve member is additionally provided in the tourie body for the desulfurizer that this method uses, valve member includes valve
Seat and several spools being slidably connected with valve seat, valve seat are fixedly connected on the top in tourie body and being located at the second annular groove,
Spool is equipped with connecting rod towards the side of elastic plate, and spool and elastic plate are attached by connecting rod, are also opened up on spool
There is several air passing holes, the inlet end of air passing hole is located at the bottom of spool, and the outlet side of air passing hole is located at the side wall of spool and can
It offsets with valve seat.
Preferably, the alkaline absorption solution poured into step (1) into tourie body is sodium hydroxide solution or calcium hydroxide
Solution.
Preferably, in step (3), when flue gas is passed into air inlet pipe, pass through the gas stream being mounted at air inlet pipe
Meter observes the input speed of flue gas at air inlet pipe in real time.
The beneficial effects of the present invention are:
1, the present invention is when carrying out desulfurization process to flue gas, when the alkaline matter concentration decline in alkaline absorption solution, benefit
With the response characteristic of calcium oxide and sulfur dioxide, on the one hand can the sulfur dioxide complete to unreacted absorb again, avoid two
Sulfur oxide emissions into air, on the other hand, calcium oxide react with sulfur dioxide after caused by weight increase so that elastic plate hair
Raw flexible deformation simultaneously moves down, so that calcium oxide is contacted with alkaline absorption solution to increase the basic species in alkaline absorption solution
The concentration of matter, after reacting a period of time, elastic plate can be such that calcium oxide separates with alkaline absorption solution automatically again, and so on, i.e.,
The adjust automatically to the alkaline matter concentration in alkaline absorption solution can be achieved, therefore this programme can effectively guarantee alkaline absorption solution
In alkaline matter concentration, and then the absorption to sulfur dioxide in flue gas has been effectively ensured, has reduced sulfur dioxide (SO2) emissions and arrive
In air, polluted caused by air.
2, valve member is set in desulfurizer used in the present invention, when under the concentration of alkaline absorption solution neutral and alkali substance
When drop is so that sulfur dioxide is reacted with calcium oxide, spool will be moved downward under the drive of elastic plate along valve seat, when spool is along valve
When seat moves downward, the outlet side of air passing hole will offset with valve seat on spool side wall, and flue gas will not pass through on spool at this time
Air passing hole is discharged from escape pipe, makes the concentration of alkaline matter increase for a period of time when calcium oxide is reacted with alkaline absorption solution
When, spool moves upwards under the drive of elastic plate along valve seat, and the outlet side of air passing hole is separated with valve seat on spool side wall, at this time
The air passing hole that flue gas after desulfurization process could pass through on spool is discharged from escape pipe, therefore the present invention passes through valve member
Setting, when the alkaline matter concentration in alkaline absorption solution declines so that the sulfur dioxide in flue gas absorbs incomplete, valve group
Part closes the discharge for avoiding flue gas, and when the alkaline matter concentration in alkaline absorption solution rises, valve member automatically turns on again
It ensure that the discharge of flue gas, therefore the discharge of sulfur dioxide in flue gas can be further reduced.
3, the present invention on elastic plate by opening up venthole, so that the flue gas after desulfurization process is needed across venthole,
This adds increased the resistances that flue gas moves upwards, and slow down the speed that flue gas moves upwards, so that the titanium dioxide in flue gas
Sulphur can have more times to be reacted with alkaline matter, improve the treatment effect to sulfur dioxide.
Detailed description of the invention
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, the present invention provides following attached drawing and carries out
Illustrate:
Fig. 1 is desulfurizer used in FGD dust collection method of the present invention in alkaline absorption solution neutral and alkali material concentration
Structural schematic diagram when higher；
Fig. 2 is desulfurizer used in FGD dust collection method of the present invention in alkaline absorption solution neutral and alkali material concentration
Structural schematic diagram when lower.
Label in attached drawing is as follows: absorbing tank body 1, air inlet pipe 2, air inlet 3, elastic plate 4, venthole 5, spring 6, valve seat
7, spool 8, air passing hole 9, escape pipe 10, pH value tester 11.
Specific embodiment
Below in conjunction with attached drawing, a preferred embodiment of the present invention will be described in detail.
As shown in Figure 1 and Figure 2, desulfurizer, including tank body 1 is absorbed, it absorbs tank body 1 and is provided with alkaline absorption solution,
Alkaline absorption solution in the present embodiment is calcium hydroxide solution, goes in the lower end for absorbing tank body 1 and is connected with air inlet pipe 2, air inlet
Pipe 2 is gone to absorption tank body 1 by two deep groove ball bearings of the left and right sides and is connect, and air inlet pipe 2 is located at the liquid of alkaline absorption solution
Face offers several air inlets 3 hereinafter, extending into alkaline absorption solution liquid level part below in air inlet pipe 2, when passing through air inlet
When pipe 2 is constantly passed through the flue gas containing sulfur dioxide into absorption tank body 1, air inlet pipe 2 goes to that alkaline absorption solution can be played and stirs
The effect mixed, to improve alkaline matter to the absorption efficiency of sulfur dioxide.The position for absorbing tank body 1 is stretched out in air inlet pipe 2
It is also equipped with gas flowmeter, gas flowmeter can observe the input speed of flue gas at air inlet pipe 2 in real time, convenient to flue gas stream
The adjusting of amount.
The first annular groove and the second annular groove are further respectively had from top to bottom in the inside for absorbing tank body 1, wherein the first annular groove
Diameter is greater than the diameter of the second annular groove, while the liquid level of alkaline absorption solution is located in the first annular groove, the company of sliding in the first annular groove
It is connected to elastic plate 4, the vertical height of elastic plate 4 is about the half of the first annular groove vertical height, while the lower end surface of elastic plate 4 is just
It is good to be flushed with the liquid level of alkaline absorption solution, so as to may make elastic plate 4 when lesser vertical displacement occurs for elastic plate 4 just
Upper surface is contacted with alkaline absorption solution.Several granular calcium oxide are placed in the upper surface of elastic plate 4, when elastic plate 4 is perpendicular
When to displacement so that the calcium oxide and alkaline absorption solution of upper surface contact, calcium oxide carries out reacting life with the water in alkaline absorption solution
Calcium hydroxide is produced, the concentration of the alkaline matter in alkaline absorption solution is improved with this.Several lead to is also provided on elastic plate 4
Stomata 5, when flue gas is after desulfurization process, flue gas passes through the venthole 5 on elastic plate 4, and this adds increased flue gases to transport upwards
Dynamic resistance slows down the speed that flue gas moves upwards, so that the sulfur dioxide in flue gas can have more times and alkali
Property substance is reacted, and the treatment effect to sulfur dioxide is improved.
It is the second annular groove in the top of the first annular groove, is equipped with spring 6, the upper end of spring 6 and the second annular groove in the second annular groove
Upper surface offset, the lower end of spring 6 and the upper surface of elastic plate 4 offset, when the alkaline matter concentration in alkaline absorption solution compared with
Gao Shi, spring 6 to elastic plate 4 one upwards under the action of so that the upper surface phase of the upper surface of elastic plate 4 and the first annular groove
It supports, the upper surface of elastic plate 4 is separated with alkaline absorption solution, when the alkaline matter concentration in alkaline absorption solution is lower, elastic plate 4
The weight of upper surface substance increases, so that the active force that elastic plate 4 overcomes spring 6 upward and moving down, so that elastic
The upper surface of plate 4 is contacted with alkaline absorption solution.
It is also connected with valve member absorbing in tank body 1, valve member includes valve seat 7 and several spools 8, wherein valve
The both ends of seat 7 are threaded, and valve seat 7 and are absorbed tank body 1 and are attached by screw thread, and spool 8 is T-type structure, while valve
Core 8 is slidably connected on valve seat 7, is connected with connecting rod, spool 8 and elastic plate 4 in the lower end surface of spool 8 and is carried out by connecting rod
Connection, so that spool 8 will move downwardly together under the action of connecting rod with elastic plate 4 when elastic plate 4 moves down,
Several air passing holes 9 is offered on each spool 8, the lower end of air passing hole 9 is inlet end, and the upper end of air passing hole 9 is outlet side,
Inlet end is located at the bottom of spool 8, and outlet side is located on the side wall of spool 8, when spool 8 is moved down along valve seat 7, spool 8
Outlet side on side wall can offset with valve seat 7, so that air passing hole 9 is closed.
Two escape pipes 10 are also equipped in the upper end for absorbing tank body 1, pH value test is equipped at each escape pipe 10
Instrument 11 is measured in real time, to judge sulfur dioxide in flue gas using pH value of the PH value detector to flue gas at escape pipe 10
Assimilation effect.
Using above-mentioned desulfurizer carry out flue gas desulfurization when method the following steps are included:
(1), alkaline absorption solution is poured into absorption tank body 1, so that air inlet pipe 2 is located under the liquid level of alkaline absorption solution, together
When alkaline absorption solution liquid level flushed with the lower end surface of elastic plate 4；
(2), several granular calcium oxide are placed in the upper surface of elastic plate 4；
(3), flue gas is passed through into air inlet pipe 2, the alkali substance reaction in sulfur dioxide and alkaline absorption solution in flue gas,
Flue gas after reaction is discharged after passing through the venthole 5 on elastic plate 4 from escape pipe 10；
(4), when the alkali substance reaction in sulfur dioxide and alkaline absorption solution declines the concentration of alkaline matter, warp
Still contain sulfur dioxide in flue gas after alkaline absorption solution reaction, the sulfur dioxide and granular calcium oxide on elastic plate 4 are anti-
It answers, so that elastic plate 4 occurs flexible deformation and the active force of spring 6 is overcome to move down along the first annular groove, on elastic plate 4
Calcium oxide and alkaline absorption solution in water react, produce calcium hydroxide, improve alkaline absorption solution neutral and alkali substance it is dense
Degree, spool 8 will also move downward under the drive of elastic plate 4 along valve seat 7 at this time, when spool 8 is moved downward along valve seat 7, valve
The outlet side of air passing hole 9 will offset with valve seat 7 on 8 side wall of core, and flue gas will not pass through the air passing hole 9 on spool 8 from out at this time
Tracheae 10 is discharged；When calcium oxide is reacted with water so that the calcium oxide on elastic plate 4 gradually decreases, in the effect of spring 6
Under, elastic plate 4 moves upwards and calcium oxide is separated with alkaline absorption solution；Spool 8 is under the drive of elastic plate 4 along valve seat 7
It moves upwards, the outlet side of air passing hole 9 is separated with valve seat 7 on 8 side wall of spool, and the flue gas after desulfurization process could pass through at this time
Air passing hole 9 on spool 8 is discharged from escape pipe 10；
(5) step (3) and step (4) are repeated, until completing the desulfurization process to flue gas.
Finally, it is stated that preferred embodiment above is only used to illustrate the technical scheme of the present invention and not to limit it, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (5)
1. FGD dust collection method, it is characterised in that: this method uses a kind of desulfurizer, and the desulfurizer includes being used for
The absorption tank body for containing alkaline absorption solution, the air inlet pipe and an air outlet pipe communicated with absorption tank body, air inlet pipe, which is located at, absorbs tank body
Lower end, escape pipe are located at the upper end for absorbing tank body, are equipped with annular groove in tourie body, annular groove include the first annular groove under and
On the second annular groove, the diameter of the first annular groove is greater than the diameter of the second annular groove, and being equipped in the first annular groove can slide along the first annular groove
Elastic plate, spring is equipped in the second annular groove, the both ends of spring are connected with the upper wall of elastic plate and the second annular groove respectively, elasticity
Several ventholes is offered on plate；
Method includes the following steps:
(1), alkaline absorption solution is poured into tourie body, so that air inlet pipe is located under the liquid level of alkaline absorption solution, while alkalinity
The liquid level of absorbing liquid is flushed with the lower end surface of elastic plate；
(2), several granular calcium oxide are placed in the upper surface of elastic plate；
(3), flue gas is passed through into air inlet pipe, the alkali substance reaction in sulfur dioxide and alkaline absorption solution in flue gas, reaction
Flue gas afterwards is discharged after passing through the venthole on elastic plate from escape pipe；
(4), when the alkali substance reaction in sulfur dioxide and alkaline absorption solution declines the concentration of alkaline matter, through alkalinity
Still contain sulfur dioxide in flue gas after absorbing liquid reaction, which reacts with calcium oxide granular on elastic plate, into
And make elastic plate that flexible deformation occur and the active force of spring is overcome to move down along the first annular groove, the calcium oxide on elastic plate
It reacts with the water in alkaline absorption solution, produces calcium hydroxide, improve the concentration of alkaline absorption solution neutral and alkali substance；Work as oxidation
When calcium is reacted with water so that the calcium oxide on elastic plate gradually decreases, under the action of the spring, elastic plate moves upwards and makes
Calcium oxide is separated with alkaline absorption solution；
(5) step (3) and step (4) are repeated, until completing the desulfurization process to flue gas.
2. FGD dust collection method according to claim 1, it is characterised in that: the suction for the desulfurizer that this method uses
Valve member is additionally provided in closed cans body, valve member includes valve seat and several spools being slidably connected with valve seat, and valve seat is fixed
It is connected in tourie body and is located at the top of the second annular groove, spool is equipped with connecting rod, spool and bullet towards the side of elastic plate
Property plate is attached by connecting rod, several air passing holes is also provided on spool, the inlet end of air passing hole is located at spool
Bottom, the outlet side of air passing hole are located at the side wall of spool and can offset with valve seat.
3. FGD dust collection method according to claim 1 or 2, it is characterised in that: the desulfurizer that this method uses
Air inlet pipe by bearing and absorb tank body rotation connection, offered if being located at the subsurface part of alkaline absorption solution in air inlet pipe
Dry air inlet.
4. FGD dust collection method according to claim 3, it is characterised in that: step fills in (1) into tourie body
The alkaline absorption solution entered is sodium hydroxide solution or calcium hydroxide solution.
5. FGD dust collection method according to claim 4, it is characterised in that: in step (3), flue gas is passed into
When in air inlet pipe, the input speed of flue gas at air inlet pipe is observed in real time by being mounted on the gas flowmeter at air inlet pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710290090.6A CN106955581B (en) | 2017-04-27 | 2017-04-27 | FGD dust collection method |
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| CN201710290090.6A CN106955581B (en) | 2017-04-27 | 2017-04-27 | FGD dust collection method |
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| CN106955581B true CN106955581B (en) | 2019-08-20 |
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| CN108079745A (en) * | 2017-11-27 | 2018-05-29 | 江苏力禾颜料有限公司 | A kind of H acid monosodium salt tail gas alkaline cleaning technique |
| CN109536753B (en) * | 2018-12-28 | 2020-09-18 | 江西天恩新材料有限公司 | Environment-friendly secondary aluminum alloy smelting equipment |
| CN109652610B (en) * | 2019-01-09 | 2021-08-06 | 临沂高新人才发展集团有限公司 | Steel-making furnace with high-efficiency waste gas treatment |
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| CN1188425A (en) * | 1995-05-16 | 1998-07-22 | 金属股份有限公司 | Process for dry desulphurisation of combustion gas |
| WO2008071446A1 (en) * | 2006-12-14 | 2008-06-19 | Horst Grochowski | Method and device for purifying the flue gases of a sintering process of ores and/or other material-containing materials in metal production |
| CN101791513A (en) * | 2009-02-03 | 2010-08-04 | 王建敏 | Jacking-type exhaust-gas treatment device and method |
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