CN108246028A - A kind of ultra-clean tapping equipment of the ammonia process of desulfurization and technique - Google Patents
A kind of ultra-clean tapping equipment of the ammonia process of desulfurization and technique Download PDFInfo
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- CN108246028A CN108246028A CN201711458867.1A CN201711458867A CN108246028A CN 108246028 A CN108246028 A CN 108246028A CN 201711458867 A CN201711458867 A CN 201711458867A CN 108246028 A CN108246028 A CN 108246028A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
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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
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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
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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Abstract
The invention belongs to the industries environmental technology fields such as electric power, metallurgy, chemical industry, more particularly to a kind of ultra-clean tapping equipment of ammonia process of desulfurization, including segmented desulfurizing tower and wet electrical dust precipitator, segmented desulfurizing tower includes tower body, tower body is equipped with gas inlet, the top of tower body is equipped with exhanst gas outlet, which further includes concentration cycles tank and tank used for storing ammonia；Slurry pool, enriching section, absorber portion and demisting section are disposed in tower body from bottom to up；Smoke inlet is located at enriching section, and exhanst gas outlet is connected with wet electrical dust precipitator；Tank used for storing ammonia is connected with slurry pool；The entrance of concentration cycles tank connects simultaneously with slurry pool and enriching section, and the outlet of concentration cycles tank is connected with enriching section.The present invention also provides a kind of ultra-clean discharge technologies of ammonia process of desulfurization.The ultra-clean tapping equipment of the ammonia process of desulfurization and technique of the present invention has very high desulfurization and efficiency of dust collection, can reach the ultra-clean emission request of ammonia-process desulfurization technique, and simple system, at low cost.
Description
Technical field
The invention belongs to the industries environmental technology fields such as electric power, metallurgy, chemical industry, and in particular to a kind of ultra-clean row of the ammonia process of desulfurization
Put device and technique.
Background technology
In recent years, country was lasting increases to air contaminant treatment dynamics, and atmosphere quality totally makes moderate progress, still
Chinese many local hazes still take place frequently, and it is still severe that air administers situation.
Since gas-liquid reaction speed is fast, the discharge of no waste water and dregs and desulfurization product ammonium sulfate have very high ammonia-process desulfurization technique
Economic value and be widely used in smoke gas treatment field, for atmospheric environment improvement make outstanding contribution.
Due to the ammonia process of desulfurization using ammonium hydroxide as desulfurizing agent, ammonium hydroxide belongs to volatile substances, due in desulfurizing tower
Ammonium hydroxide is atomizing spray, and temperature is higher than room temperature, easily causes ammonium hydroxide volatilization escape, remaining in the ammonia meeting of escape and flue gas
SOxReaction generation ammonium salt aerosol, forms chemical fertilizer rain, white flue gas is caused to trail, equal to atmospheric environment and public visual perception
Cause harmful effect, with the raising of national environmental standard and the enhancing of Public environmental attitude, the hangover of ammonia process of desulfurization tail gas and
Particulate matter problem not up to standard is increasingly prominent.
Invention content
In order to overcome above-mentioned the shortcomings of the prior art, the object of the present invention is to provide a kind of ultra-clean discharges of ammonia process of desulfurization
Device and technique can effectively solve the problems, such as that the hangover of ammonia process of desulfurization flue gas and particulate matter be not up to standard.
To achieve the above object, the technical scheme is that a kind of ultra-clean tapping equipment of ammonia process of desulfurization, including segmented
Desulfurizing tower and wet electrical dust precipitator, the segmented desulfurizing tower include tower body, and the tower body is equipped with gas inlet, the tower body
Top be equipped with exhanst gas outlet, which further includes concentration cycles tank and tank used for storing ammonia；It is set successively from bottom to up in the tower body
It is equipped with slurry pool, enriching section, absorber portion and demisting section；The smoke inlet is located at enriching section, the exhanst gas outlet with it is described wet
Formula electric precipitator connects；The tank used for storing ammonia is connected with the slurry pool；The entrance of the concentration cycles tank simultaneously with the slurry
Liquid pool is connected with the enriching section, and the outlet of the concentration cycles tank is connected with the enriching section.
Further, the inside of the slurry pool forms two parts up and down, slurry pool top by a slurry pool demarcation strip
One layer of oxidation air is equipped in point, one layer of recoil stirring pipe in slurry pool lower part；The entrance of the concentration cycles tank with it is described
Slurry pool lower part connects；The tank used for storing ammonia is partly connected on the slurry pool.
Further, the enriching section is bottom-up is disposed with enriching section demarcation strip, airflow-distribution board, concentration spray
Layer and enriching section demister；The smoke inlet is between the enriching section demarcation strip and the airflow-distribution board；It is described dense
The outlet of contracting circulating tank is connected with the concentration spraying layer.
Further, the absorber portion it is bottom-up be disposed with absorber portion demarcation strip, absorb spraying layer, packing layer and
Water distributor.
Further, the demisting section includes two layers of flat defogger, the top of every layer of flat defogger and the concentration
Rinse-system is equipped with above section demister.
Further, the tower of segmented desulfurizing tower is externally provided with technique water tank, the technique water tank and the wet-esp
The top connection of device；Each rinse-system is connected with the technique water tank.
Further, the slurry pool lower part is connected by first order absorption circulating pump with the absorption spraying layer, described
Slurry pool lower part is connected by two level absorbent recirculation pump with the water distributor.
Further, the enriching section demarcation strip be equipped with the first leakage fluid dram, the entrance of the concentration cycles tank with it is described
First leakage fluid dram connects.
Further, the absorber portion demarcation strip be equipped with the second leakage fluid dram, second leakage fluid dram by down-comer with
It is partly connected on the slurry pool.
The present invention also provides a kind of ultra-clean discharge technology of ammonia process of desulfurization, which includes the following steps：
S1, the smoke inlet of former flue gas from segmented desulfurizing tower enter the enriching section in tower body；
S2, flue gas carry out heat exchange, by slurry by the slurries counter current contacting sprayed after airflow-distribution board with concentration spraying layer
Liquid spraying cooling, flue gas basically reach saturation；
S3, the flue gas after saturation enter concentration demister, the preliminary moisture and particulate matter removed in flue gas, and enriching section sprays
Slurries after evaporation and concentration back to enriching section bottom enriching section demarcation strip on, pass through first on enriching section demarcation strip
Leakage fluid dram is back to the outer concentration cycles tank of tower；
S4 enters absorber portion after concentrated section of flue gas across absorber portion demarcation strip, and the slurries adverse current with absorbing spraying layer sprinkling connects
It touches, removes the SO in flue gas2；
By entering packing layer after absorbing spraying layer, with the slurries of water distributor distribution on filler surface mass transfer mistake occurs for S5, flue gas
Journey further removes the SO in flue gas2；
S6, subsequent flue gas enter back into demisting section, by entering wet-esp by exhanst gas outlet 16 after two layers of flat defogger
In device；
S7, flue gas are further removed after fine solid particle and droplet in wet electrical dust precipitator through the cigarette at the top of wet electrical dust precipitator
Chimney discharges.
Compared with prior art, beneficial effects of the present invention：
1st, the segmented desulfurizing tower in the ultra-clean tapping equipment of the ammonia process of desulfurization provided by the invention, it is rationally integrated, simplify and design, in tower
Clear partition, complete function not only greatly improve desulfuration efficiency, while have well solved the escaping of ammonia problem, reduce simultaneously
Dust emission.
2nd, it is thrown in the ultra-clean tapping equipment of the ammonia process of desulfurization provided by the invention using ultra-clean draining technology with less cost
Enter to efficiently solve the problems, such as that ammonia process of desulfurization tail gas white cigarette tailing problem and dust be not up to standard.
3rd, a segmented desulfurizing tower and an integration are used in the ultra-clean tapping equipment of the ammonia process of desulfurization provided by the invention
The wet electrical dust precipitator and chimney of design, are greatly decreased floor space.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure diagram of the ultra-clean tapping equipment of the ammonia process of desulfurization provided in an embodiment of the present invention；
In figure：1st, segmented desulfurizing tower, 2, recoil stirring pipe, 3, slurry pool demarcation strip, 4, oxidation air, 5, slurry pool, 51, slurry
Part on liquid pool, 52, slurry pool lower part, 6, enriching section demarcation strip, 7, smoke inlet, 8, airflow-distribution board, 9, concentration spray
Layer, 10, enriching section demister, 11, absorber portion demarcation strip, 12, absorb spraying layer, 13, packing layer, 14, water distributor, 15, tablet
Demister, 16, exhanst gas outlet, 17, aqua ammonia pump, 18, tank used for storing ammonia, 19, first order absorption circulating pump, 20, two level absorbent recirculation pump,
21st, dilute sulphur ammonium delivery pump, 22, recoil mixing pump, 23, concentration cycles tank, 24, discharging pump, 25, concentrated circulating pump, 26, flushing water
Pump, 27, technique water tank, 28, wet electrical dust precipitator, 29, chimney, 30, down-comer.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained all other without making creative work
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, the embodiment of the present invention provides a kind of ultra-clean tapping equipment of the ammonia process of desulfurization, including segmented desulfurizing tower 1
With wet electrical dust precipitator 28, segmented desulfurizing tower 1 is carbon steel structure, and the inner wall of segmented desulfurizing tower 1 uses glass flake anti-corrosion,
Segmented desulfurizing tower 1 includes tower body, and the middle part of tower body is equipped with gas inlet 7, and the top of tower body is equipped with exhanst gas outlet 16, the device
Further include concentration cycles tank 23 and tank used for storing ammonia 18；Slurry pool 5, enriching section, absorber portion are disposed in tower body from bottom to up
With demisting section；Smoke inlet 7 is located at enriching section, and exhanst gas outlet 16 is connected with wet electrical dust precipitator 28, and exhanst gas outlet 16, which is located at, to be removed
Mist section, the top of wet electrical dust precipitator 28 are equipped with chimney 29；Tank used for storing ammonia 18 is connected with slurry pool 5；Concentration cycles tank 23 enters
Mouth connects simultaneously with slurry pool 5 and enriching section, and the outlet of concentration cycles tank 23 is connected with enriching section.It is provided in an embodiment of the present invention
The ultra-clean tapping equipment of the ammonia process of desulfurization is applied in combination by segmented desulfurizing tower and wet electrical dust precipitator, is had very high desulfurization and is removed
Dirt efficiency can reach the ultra-clean emission request of ammonia-process desulfurization technique, and simple system, and floor space is small, at low cost, conducive to big model
Enclose popularization and application.
Further, the inside of slurry pool 5 forms two parts up and down, slurry pool demarcation strip 4 by a slurry pool demarcation strip 4
Fiberglass can be used or carbon steel makes, be equipped with one layer of oxidation air 4 on slurry pool in part 51, glass can be used in oxidation air 4
Glass steel or stainless steel makes, and is evenly distributed in slurry pool 5 by oxidation air 4 from extraneous air, makes what desulfurization generated
Ammonium sulfite is smoothly oxidized to ammonium sulfate；One layer of recoil stirring pipe 2 in slurry pool lower part 52；Glass can be used in recoil stirring pipe 2
Glass steel or stainless steel make, and the entrance of concentration cycles tank 23 is connected by dilute sulphur ammonium delivery pump 21 with slurry pool lower part 52,
The dilute ammonium sulfate solution generated in slurry pool 5 is delivered to by concentration cycles tank 23 by dilute sulphur ammonium delivery pump 21；Tank used for storing ammonia 18 with
Part 51 connects on slurry pool.
Further, enriching section is bottom-up is disposed with enriching section demarcation strip 6, airflow-distribution board 8, concentration spraying layer
9 and enriching section demister 10；Smoke inlet 7 is between enriching section demarcation strip 6 and airflow-distribution board 8；Concentration cycles tank 23
Outlet is connected by concentrated circulating pump 25 with concentrating spraying layer 9, by the slurries in concentration cycles tank 23 by pipeline to dense
Contracting spraying layer 9, slurries fall to enriching section demarcation strip 6, and concentration cycles tank 23 is back to by the pipeline on enriching section demarcation strip 6
In.Enriching section demarcation strip 6 is made of fiberglass either carbon steel, and enriching section demarcation strip 6 is horizontal by certain angle, gas
Flow point fabric swatch 8 is the porous plate that percent opening is 30% ~ 50%, is made of fiberglass either carbon steel；Enriching section demister 10 can
Using tubular demister or flat defogger, flushing water is set.
Further, absorber portion is bottom-up is disposed with absorber portion demarcation strip 11, absorbs spraying layer 12, packing layer 13
With water distributor 14.Absorber portion demarcation strip 11 is made of fiberglass or carbon steel；Packing layer 13 uses plastic regular packing material；Water distribution
Device 14 is glass fibre reinforced plastic structure, is made of supervisor's major trough and secondary slot.
Further, demisting section includes two layers of flat defogger 15, and the top of every layer of flat defogger 15 and enriching section remove
The top of day with fog 10 is equipped with rinse-system.
Further, the tower of segmented desulfurizing tower 1 is externally provided with technique water tank 27, technique water tank 27 by flush water pump 26 with
The top connection of wet electrical dust precipitator 28；Technique water tank 27 is connected by flush water pump 26 with each rinse-system.
Further, slurry pool lower part 52 is connected by first order absorption circulating pump 19 with absorbing spraying layer 12, slurry pool
Lower part 52 is connected by two level absorbent recirculation pump 20 with water distributor 14.Two circulating pumps divide the slurries of desulphurization tower slurry pool 5
It is not delivered to and absorbs spraying layer 12 and water distributor 14.
Further, slurry pool lower part 52 is connected by the mixing pump 22 that recoils with recoil stirring pipe 2.Recoil mixing pump 22
1 slurry pool of desulfurizing tower, 5 slurries are delivered to recoil stirring pipe 2, the slurries in slurry pool 5 are stirred.
Further, enriching section demarcation strip 6 be equipped with the first leakage fluid dram and and rise gas cap, the entrance of concentration cycles tank 23 with
First leakage fluid dram connects.
Further, absorber portion demarcation strip 11 be equipped with the second leakage fluid dram and and rise gas cap, the second leakage fluid dram passes through decline
Pipe 30 is connected with part on slurry pool 51.Absorb the slurries of spraying layer 12 and water distributor 14 by absorber portion demarcation strip 11 and under
Drop pipe 30 is back to slurry pool 5 in desulfurizing tower 1, and the ammonium hydroxide in ammonia water tank 18 is sent to down-comer 30 and entered by aqua ammonia pump 17
5 lower part of slurry pool.
Concentration cycles tank 23 is provided with discharging pump 24, and discharging pump 24 is by the ammonium sulfate solution concentrated in concentration cycles tank 23
It is delivered to sulphur ammonium Workshop Production sulphur ammonium finished product.
Enriching section demister 10, demisting section flat defogger 15 and wet electrical dust precipitator 28 in segmented desulfurizing tower 1
Top be equipped with rinse-system, rinse-system is connect by flush water pump 26 with technique water tank 27.
The present invention also provides a kind of ultra-clean discharge technology of ammonia process of desulfurization, which includes the following steps：
1）Former flue gas enters the enriching section in tower body from the smoke inlet 7 of segmented desulfurizing tower 1；
2）Flue gas is carried out heat exchange, is passed through by the slurries counter current contacting sprayed after airflow-distribution board 8 with concentration spraying layer 9
Slurries spraying cooling, flue gas basically reach saturation；
3）Flue gas after saturation enters concentration demister 10, the preliminary moisture and particulate matter removed in flue gas, and enriching section sprays
The slurries of leaching are returned to after evaporation and concentration on the enriching section demarcation strip 6 of enriching section bottom, by enriching section demarcation strip 6
First leakage fluid dram is back to the outer concentration cycles tank 23 of tower, the solution concentrated by discharging pump 24 be sent to sulphur ammonium Workshop Production into
Product；
4）Absorber portion demarcation strip 11 is passed through to enter absorber portion after concentrated section of flue gas, the slurries adverse current sprayed with absorbing spraying layer 12
Contact removes the SO in flue gas2；
5）By entering packing layer 13 after absorbing spraying layer 12, the slurries being distributed with water distributor 14 pass flue gas on filler surface
Matter process further removes the SO in flue gas2；
6）Subsequent flue gas enters back into demisting section, by entering wet-esp by exhanst gas outlet 16 after two layers of flat defogger 15
In device 28；
7）Flue gas is further removed after fine solid particle and droplet in wet electrical dust precipitator 28 at the top of by wet electrical dust precipitator
Chimney 29 discharges.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of ultra-clean tapping equipment of the ammonia process of desulfurization, including segmented desulfurizing tower（1）And wet electrical dust precipitator（28）, the segmentation
Formula desulfurizing tower（1）Including tower body, the tower body is equipped with gas inlet（7）, the top of the tower body is equipped with exhanst gas outlet（16）,
It is characterized in that：The device further includes concentration cycles tank（23）And tank used for storing ammonia（18）；It is set successively from bottom to up in the tower body
It is equipped with slurry pool（5）, enriching section, absorber portion and demisting section；The smoke inlet（7）Positioned at enriching section, the exhanst gas outlet
（16）With the wet electrical dust precipitator（28）Connection；The tank used for storing ammonia（18）With the slurry pool（5）Connection；The concentration follows
Ring tank（23）Entrance simultaneously with the slurry pool（5）It is connected with the enriching section, the concentration cycles tank（23）Outlet with
The enriching section connection.
2. a kind of ultra-clean tapping equipment of the ammonia process of desulfurization as described in claim 1, it is characterised in that：The slurry pool（5）It is interior
Portion passes through a slurry pool demarcation strip（4）Form two parts up and down, part on slurry pool（51）Inside it is equipped with one layer of oxidation air（4）,
Slurry pool lower part（52）Interior one layer of recoil stirring pipe（2）；The concentration cycles tank（23）Entrance and the slurry pool lower part
Point（52）Connection；The tank used for storing ammonia（18）With part on the slurry pool（51）Connection.
3. a kind of ultra-clean tapping equipment of the ammonia process of desulfurization as described in claim 1, it is characterised in that：The enriching section is bottom-up
It is disposed with enriching section demarcation strip（6）, airflow-distribution board（8）, concentration spraying layer（9）With enriching section demister（10）；It is described
Smoke inlet（7）Positioned at the enriching section demarcation strip（6）With the airflow-distribution board（8）Between；The concentration cycles tank（23）
Outlet and the concentration spraying layer（9）Connection.
4. a kind of ultra-clean tapping equipment of the ammonia process of desulfurization as claimed in claim 2, it is characterised in that：The absorber portion is bottom-up
It is disposed with absorber portion demarcation strip（11）, absorb spraying layer（12）, packing layer（13）And water distributor（14）.
5. a kind of ultra-clean tapping equipment of the ammonia process of desulfurization as claimed in claim 3, it is characterised in that：The demisting section includes two layers
Flat defogger（15）, every layer of flat defogger（15）Top and the enriching section demister（10）Top be equipped with flushing
System.
6. a kind of ultra-clean tapping equipment of the ammonia process of desulfurization as claimed in claim 5, it is characterised in that：Segmented desulfurizing tower（1）'s
Tower is externally provided with technique water tank（27）, the technique water tank（27）With the wet electrical dust precipitator（28）Top connection；It is each described
Rinse-system with the technique water tank（27）Connection.
7. a kind of ultra-clean tapping equipment of the ammonia process of desulfurization as claimed in claim 4, it is characterised in that：The slurry pool lower part
（52）Pass through first order absorption circulating pump（19）With the absorption spraying layer（12）Connection, the slurry pool lower part（52）Pass through two
Grade absorbent recirculation pump（20）With the water distributor（14）Connection.
8. a kind of ultra-clean tapping equipment of the ammonia process of desulfurization as claimed in claim 3, it is characterised in that：The enriching section demarcation strip
（6）It is equipped with the first leakage fluid dram, the concentration cycles tank（23）Entrance connected with first leakage fluid dram.
9. a kind of ultra-clean tapping equipment of the ammonia process of desulfurization as claimed in claim 4, it is characterised in that：The absorber portion demarcation strip
（11）The second leakage fluid dram is equipped with, second leakage fluid dram passes through down-comer（30）With part on the slurry pool（51）Connection.
10. a kind of ultra-clean discharge technology of the ammonia process of desulfurization, which is characterized in that the technique includes the following steps：
S1, former flue gas is from segmented desulfurizing tower（1）Smoke inlet（7）Into the enriching section in tower body；
S2, flue gas pass through airflow-distribution board（8）Afterwards with concentrating spraying layer（9）The slurries counter current contacting of sprinkling carries out heat exchange,
By slurries spraying cooling, flue gas basically reaches saturation；
S3, the flue gas after saturation enter concentration demister（10）, the preliminary moisture and particulate matter removed in flue gas, and enriching section
The slurries of spray return to the enriching section demarcation strip of enriching section bottom after evaporation and concentration（6）On, pass through enriching section demarcation strip
（6）On the first leakage fluid dram be back to the outer concentration cycles tank of tower（23）；
S4 passes through absorber portion demarcation strip after concentrated section of flue gas（11）Into absorber portion, with absorbing spraying layer（12）The slurry of sprinkling
Liquid counter current contacting removes the SO in flue gas2；
S5, flue gas is by absorbing spraying layer（12）Enter packing layer afterwards（13）, with water distributor（14）The slurries of distribution are in filler table
Mass transport process occurs for face, further removes the SO in flue gas2；
S6, subsequent flue gas enter back into demisting section, pass through two layers of flat defogger（15）Afterwards by exhanst gas outlet（16）Enter wet type
Electric precipitator（28）In；
S7, flue gas is in wet electrical dust precipitator（28）In further remove after fine solid particle and droplet by the top of wet electrical dust precipitator
Chimney（29）Discharge.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711458867.1A CN108246028A (en) | 2017-12-28 | 2017-12-28 | A kind of ultra-clean tapping equipment of the ammonia process of desulfurization and technique |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711458867.1A CN108246028A (en) | 2017-12-28 | 2017-12-28 | A kind of ultra-clean tapping equipment of the ammonia process of desulfurization and technique |
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| CN109647163A (en) * | 2018-12-21 | 2019-04-19 | 大田县伊鑫新型材料有限公司 | A kind of dry-process cement rotary kiln ammonia process semidry process desulfurizer |
| CN109925863A (en) * | 2019-03-15 | 2019-06-25 | 中国联合工程有限公司 | A kind of wet electricity of the ammonia process of desulfurization takes off white minimum discharge system |
| CN110026072A (en) * | 2019-05-21 | 2019-07-19 | 广元揽山环保科技有限公司 | A kind of flue gas desulfurization minimum discharge absorption tower and flue gas desulfurization minimum discharge technique |
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