CN106139873A - A kind of desulfurization by lime gypsum method device - Google Patents
A kind of desulfurization by lime gypsum method device Download PDFInfo
- Publication number
- CN106139873A CN106139873A CN201610702185.XA CN201610702185A CN106139873A CN 106139873 A CN106139873 A CN 106139873A CN 201610702185 A CN201610702185 A CN 201610702185A CN 106139873 A CN106139873 A CN 106139873A
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- CN
- China
- Prior art keywords
- desulfurization
- pond
- desulfurizing tower
- pipe
- method device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B01D53/34—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
- B01D53/26—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
- B01D53/34—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
- 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
- B01D2251/606—Carbonates
Abstract
nullA kind of desulfurization by lime gypsum method device，It is characterized in that: include limestone feed bin、Desulfurizing tower、Gypsum Fibrosum Sedimentation tank and chimney，The inner bottom part of described desulfurizing tower is desulfurization pond，The demister of two-layer it is provided with in the top of desulfurizing tower，The lower section of demister is provided with the spraying layer of three layers，Spraying layer includes nozzle and shower，Nozzle connects desulfurization pond by shower，It is provided with circulating pump near one end, desulfurization pond on shower，The top in desulfurization pond connects slurry pool by pulp-inlet pipe，Pulp-inlet pipe is provided with into stock pump，Slurry pool connects the limestone feed bin above it by powder inlet pipe，The bottom in desulfurization pond connects Gypsum Fibrosum Sedimentation tank by Gypsum Fibrosum discharge pipe，Gypsum Fibrosum discharge pipe is provided with calcium plaster blowdown pump，Desulfurizing tower is provided with smoke inlet and exhaust opening，Smoke inlet is in the lower section of spraying layer、Exhaust opening is in the top of demister，Exhaust opening connects chimney by smoke exhaust pipe.The desulfuration efficiency of the present invention is high, desulfurization is thorough, institute's smoke discharging sulfur dioxide concentration is low.
Description
Technical field:
The present invention relates to a kind of desulphurization plant, be specifically related to a kind of desulfurization by lime gypsum method device.
Background technology:
Along with expanding economy, being growing on and on the demand of the energy, problem of environmental pollution is the most violent.Wherein sulfur dioxide
Being one of the Air Pollutants of face of mankind nowadays, China's steam coal for power occupies the biggest proportion, and boiler power plant soot produces
The severe challenge that raw sulfur dioxide pollution is China's energy and environmental protection department faces.And desulfurization used by existing boiler power plant
The desulfuration efficiency of equipment is low, desulfurization is not thorough, and the sulfur dioxide concentration in clapped flue gas is extremely difficult to discharge index.
Summary of the invention:
The present invention is for overcoming the deficiencies in the prior art, it is provided that a kind of desulfurization by lime gypsum method device, its desulfuration efficiency
Height, desulfurization sulfur dioxide concentration thorough, institute's smoke discharging are low.
The desulfurization by lime gypsum method device of the present invention, the technical scheme of employing is: include limestone feed bin, desulfurization
Tower, Gypsum Fibrosum Sedimentation tank and chimney, the inner bottom part of described desulfurizing tower is desulfurization pond, be provided with in the top of desulfurizing tower two-layer except mist
Device, the lower section of demister is provided with the spraying layer of three layers, and spraying layer includes nozzle and shower, and nozzle connects desulfurization by shower
Pond, shower is provided with circulating pump near one end, desulfurization pond, and the top in desulfurization pond connects slurry pool by pulp-inlet pipe, on pulp-inlet pipe
Being provided with into stock pump, slurry pool connects the limestone feed bin above it by powder inlet pipe, and Gypsum Fibrosum discharge pipe is passed through in the bottom in desulfurization pond
Connection Gypsum Fibrosum Sedimentation tank, Gypsum Fibrosum discharge pipe is provided with calcium plaster blowdown pump, and desulfurizing tower is provided with smoke inlet and exhaust opening, smoke inlet
Be in the lower section of spraying layer, exhaust opening is in the top of demister, and exhaust opening connects chimney by smoke exhaust pipe, close on smoke exhaust pipe
Being provided with air-introduced machine at chimney, desulfurization pond is externally provided with oxygen increasing tube, and desulfurization pond connects moisturizing pond by filling pipe, and filling pipe is provided with benefit
Water pump, one end of oxygen increasing tube is provided with oxygen supplement blower fan.
Further, the top portion thereof in described desulfurization pond has plug-type desulfurization agitator, can improve response speed.
Further, in described slurry pool, it is provided with slurry mixer, by uniform for limestone solution stirring.
Further, described desulfurizing tower is Q235B carbon steel desulfurizing tower, and its good corrosion resistance, service life is long.
Further, described shower is FRP pipe, and its inwall is provided with vinyl ester resin glass flake corrosion-inhibiting coating, carries
Highly corrosion resistant, and then improve service life.
Further, described desulfurizing tower is provided with observation port, convenient situation about observing in desulfurizing tower.
Further, the bottom of limestone feed bin is provided with hand operated gate valve and quantitative frequency conversion feed valve, it is simple to discharge quantity
Manually regulate and control or auto-control.
Further, the top of limestone feed bin is provided with cleaner unit, gravity force type safety valve and checks hole, it can be ensured that limestone
The normal use of feed bin.
Further, limestone feed bin is provided with level-sensing device, can monitor the content of its sodalime stone powder at any time.
Further, moisturizing pond is by the top of another root filling pipe connection desulfurizing tower, and the entrance of this filling pipe is positioned at and removes
The top of day with fog, in order to demister is carried out.
Further, smoke exhaust pipe is provided with SO2Concentration detector, can monitor the discharge capacity of sulfur dioxide.
The invention has the beneficial effects as follows: the desulfurizing tower top layout two-layer demister of the present invention, that can be carried by flue gas is big
Portion of water is separated, and demister can be rinsed while carrying out moisturizing for desulfurization pond by moisturizing pond, prevents in flue gas
The solid matter blocking demister carried, enters the flue gas in desulfurizing tower and is in the lower section of spraying layer, three layers of longitudinally disposed spray
Drench the solution that sprayed of layer to contact with the flue gas adverse current in entrance desulfurizing tower, it is ensured that flue gas in absorption tower can steady flow,
Can there is the enough response time, it is also ensured that flue gas can contact with solution fully, improves desulfuration efficiency, greatly reduces
The discharge capacity of sulfur dioxide.Wherein, desulfurizing tower and internals thereof use Q235B carbon steel to make, and are greatly improved desulfurization
The antiseptic property of tower, shower uses FRP material to make, it is possible to is greatly improved antiseptic property, and then improves whole desulfurizing tower
Service life；In desulfurization pond, carried oxygen by oxygen supplement blower fan, be greatly improved response speed and desulfurization degree；Arrange on smoke exhaust pipe
Air-introduced machine can improve smoke exhaust efficiency, it is to avoid flue gas residence is in smoke exhaust pipe.
The desulfuration efficiency of the present invention can reach more than 98%, and the concentration of exiting flue gas sulfur dioxide is far smaller than 30mg/
m3, can reach the service life of desulfurizing tower more than 30 years, whole device can not only adapt to separate unit boiler minimum steady combustion load work
Any load between condition and 100%BMCR operating mode, but also adapt to two, three changes that boiler runs simultaneously.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention:
With reference to Fig. 1, this desulfurization by lime gypsum method device, including limestone feed bin 1, desulfurizing tower 2, Gypsum Fibrosum Sedimentation tank 3 and
Chimney 4, the inner bottom part of described desulfurizing tower 2 is desulfurization pond 10, is provided with the demister 12 of two-layer, demister in the top of desulfurizing tower 2
The lower section of 12 is the spraying layer 30 of longitudinally disposed three layer, and spraying layer 30 includes nozzle 31 and shower 32, and nozzle 31 is by spray
Shower pipe 32 connects desulfurization pond 10, and shower 32 is provided with circulating pump 5 near one end, desulfurization pond 10, the top in desulfurization pond 10 pass through into
Slurry pipe 6 connects slurry pool 7, and pulp-inlet pipe 6 is provided with into stock pump 8, and slurry pool 7 connects the Calx building stones above it by powder inlet pipe 9
Storehouse 10, the bottom in desulfurization pond 10 connects Gypsum Fibrosum Sedimentation tank 12 by Gypsum Fibrosum discharge pipe 11, and Gypsum Fibrosum discharge pipe 11 is provided with calcium plaster
Blowdown pump 13, desulfurizing tower 2 is provided with smoke inlet 14 and exhaust opening 15, and smoke inlet 14 is in the lower section of spraying layer 30, exhaust opening 15
Being in the top of demister 12, exhaust opening 15 connects chimney 4 by smoke exhaust pipe 16, smoke exhaust pipe 16 is provided with at chimney 4 and draws
Blower fan 17, desulfurization pond 10 connects moisturizing pond 20 by filling pipe 19, and moisturizing pond 20 connects desulfurizing tower 2 by another root filling pipe 19
Top, the entrance of this filling pipe 19 is positioned at the top of demister 12, and desulfurization pond 10 is externally provided with oxygen increasing tube 18, the one of oxygen increasing tube 18
End is provided with oxygen supplement blower fan 22, carries oxygen for desulfurization pond, improves the reaction efficiency in desulfurization pond.
The top portion thereof in described desulfurization pond 21 has plug-type desulfurization agitator 23.
It is provided with slurry mixer 24 in described slurry pool 7.
Described desulfurizing tower 2 is Q235B carbon steel desulfurizing tower.
Described shower 32 is managed for FRP, and its inwall is provided with vinyl ester resin glass flake corrosion-inhibiting coating.
Described desulfurizing tower 2 is provided with observation port 25.
The bottom of described limestone feed bin 1 is provided with hand operated gate valve and quantitative frequency conversion feed valve.
The top of described limestone feed bin 1 is provided with cleaner unit, gravity force type safety valve and checks hole.
Described limestone feed bin 1 is provided with level-sensing device.
Described smoke exhaust pipe 16 is provided with SO2Concentration detector 27.
Work process:
Agstone in limestone feed bin 1 enters in slurry pool 7, again through entering slurry after being stirred by slurry mixer 24
Pump 8 is input in desulfurization pond 10, the solution in desulfurization pond 10 through circulating pump 5 circulation squeezes in spraying layer 30, by spraying layer 30 to
Lower ejection is sufficiently mixed with the flue gas entered in desulfurizing tower 2 by smoke inlet 14, the SO contained in flue gas2After solution reaction
Formed precipitate in calcium plaster excavationg pump 13 enters Gypsum Fibrosum Sedimentation tank 3, remaining flue gas through exhaust opening 15 by smoke exhaust pipe 16
In entering chimney 4, row is to air, and when flue gas is through demister 12, the most of moisture carried in flue gas is separated by demister 12
Out.
Claims (10)
1. a desulfurization by lime gypsum method device, it is characterised in that: include that limestone feed bin (1), desulfurizing tower (2), Gypsum Fibrosum are heavy
Fall pond (3) and chimney (4), the inner bottom part of described desulfurizing tower (2) is desulfurization pond (10), is provided with two-layer in the top of desulfurizing tower (2)
Demister (12), the lower section of demister (12) is provided with the spraying layer (30) of three layers, spraying layer (30) include nozzle (31) and spray
Shower pipe (32), nozzle (31) connects desulfurization pond (10) by shower (32), and shower (32) is upper near desulfurization pond (10) one end
Being provided with circulating pump (5), the top of desulfurization pond (10) connects slurry pool (7) by pulp-inlet pipe (6), and pulp-inlet pipe (6) is provided with into slurry
Pump (8), slurry pool (7) connects the limestone feed bin (1) above it by powder inlet pipe (9), and stone is passed through in the bottom of desulfurization pond (10)
Cream discharge pipe (11) connection Gypsum Fibrosum Sedimentation tank (3), Gypsum Fibrosum discharge pipe (11) is provided with calcium plaster blowdown pump (13), desulfurizing tower (2)
Being provided with smoke inlet (14) and exhaust opening (15), smoke inlet (14) is in the lower section of spraying layer (30), exhaust opening (15) is in and removes
The top of day with fog (12), exhaust opening (15) is by smoke exhaust pipe (16) connection chimney (4), and smoke exhaust pipe (16) is upper near chimney (4) place
Being provided with air-introduced machine (17), desulfurization pond (10), by filling pipe (19) connection moisturizing pond (20), filling pipe (19) is provided with small pump
(21), desulfurization pond (10) are externally provided with oxygen increasing tube (18), and one end of oxygen increasing tube (18) is provided with oxygen supplement blower fan (22).
2. a kind of desulfurization by lime gypsum method device as claimed in claim 1, it is characterised in that: the top of described desulfurization pond (21)
Portion is inverted plug-type desulfurization agitator (23).
3. a kind of desulfurization by lime gypsum method device as claimed in claim 1, it is characterised in that: described slurry pool sets in (7)
There is slurry mixer (24).
4. a kind of desulfurization by lime gypsum method device as claimed in claim 1, it is characterised in that: described desulfurizing tower (2) is
Q235B carbon steel desulfurizing tower.
5. a kind of desulfurization by lime gypsum method device as claimed in claim 1, it is characterised in that: described shower (32) is
FRP manages, and its inwall is provided with vinyl ester resin glass flake corrosion-inhibiting coating.
6. a kind of desulfurization by lime gypsum method device as claimed in claim 1, it is characterised in that: described desulfurizing tower sets on (2)
There is observation port (25).
7. a kind of desulfurization by lime gypsum method device as claimed in claim 1, it is characterised in that: the end of limestone feed bin (1)
Portion is provided with hand operated gate valve and quantitative frequency conversion feed valve.
8. a kind of desulfurization by lime gypsum method device as claimed in claim 1, it is characterised in that: moisturizing pond (20) pass through another
The top of root filling pipe (19) connection desulfurizing tower (2), the entrance of this filling pipe (19) is positioned at the top of demister (12).
9. a kind of desulfurization by lime gypsum method device as claimed in claim 1, it is characterised in that: limestone feed bin sets on (1)
There is level-sensing device (26).
10. a kind of desulfurization by lime gypsum method device as claimed in claim 1, it is characterised in that: smoke exhaust pipe (16) is provided with
SO2Concentration detector (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610702185.XA CN106139873A (en) | 2016-08-22 | 2016-08-22 | A kind of desulfurization by lime gypsum method device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610702185.XA CN106139873A (en) | 2016-08-22 | 2016-08-22 | A kind of desulfurization by lime gypsum method device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106139873A true CN106139873A (en) | 2016-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610702185.XA Pending CN106139873A (en) | 2016-08-22 | 2016-08-22 | A kind of desulfurization by lime gypsum method device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106139873A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106390707A (en) * | 2016-11-30 | 2017-02-15 | 合肥亿福自动化科技有限公司 | Flue gas wet-desulfurization system |
| CN111001290A (en) * | 2019-12-25 | 2020-04-14 | 广东新生环保科技股份有限公司 | Lime slurry preparation and linkage slurry adding system |
| CN111760427A (en) * | 2020-06-28 | 2020-10-13 | 淮南北新建材有限公司 | Gypsum board production line, gas treatment device and gas treatment method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106390707A (en) * | 2016-11-30 | 2017-02-15 | 合肥亿福自动化科技有限公司 | Flue gas wet-desulfurization system |
| CN111001290A (en) * | 2019-12-25 | 2020-04-14 | 广东新生环保科技股份有限公司 | Lime slurry preparation and linkage slurry adding system |
| CN111760427A (en) * | 2020-06-28 | 2020-10-13 | 淮南北新建材有限公司 | Gypsum board production line, gas treatment device and gas treatment method thereof |
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Application publication date: 20161123 |
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