CN106268272A - Boiler smoke alkaline residue wet desulphurization device - Google Patents
Boiler smoke alkaline residue wet desulphurization device Download PDFInfo
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- CN106268272A CN106268272A CN201610640561.7A CN201610640561A CN106268272A CN 106268272 A CN106268272 A CN 106268272A CN 201610640561 A CN201610640561 A CN 201610640561A CN 106268272 A CN106268272 A CN 106268272A
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- alkaline residue
- absorption tower
- boiler smoke
- oxidation
- serosity
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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
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Environmental & Geological Engineering (AREA)
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Abstract
The present invention provides a kind of flue gas alkaline residue wet desulphurization device, including absorbing liquid supply system, desulphurization system and gypsum dehydration system；Absorbing liquid supply system includes adding water alkaline residue and is stirred the pulper of slurrying, the alkaline residue slurry pool of storage alkaline residue serosity and carries the alkaline residue serosity pump of alkaline residue serosity from alkaline residue slurry pool to desulphurization system；Desulphurization system includes absorption tower, absorbing liquid circulating pump, side-feeding mixer and oxidation fan, is provided with spraying layer, demister and oxidation stock tank in absorption tower；Gypsum dehydration system includes Gypsum Fibrosum excavationg pump, Gypsum Fibrosum cyclone, vacuum belt dewaterer and Gypsum Fibrosum storehouse successively, and Gypsum Fibrosum excavationg pump is arranged on the outlet bottom oxidation stock tank.The flue gas alkaline residue wet desulphurization device of the present invention, it is integrated alkaline residue emission treatment, boiler flue gas desulfurization and desulfuration byproduct and processes, and provides the processing system of complete set for boiler smoke alkaline residue wet desulphurization, it is adaptable to alkaline, the large chemical complex of use boiler.
Description
[technical field]
The present invention relates to boiler smoke process field, particularly relate to a kind of boiler smoke alkaline residue wet desulphurization device.
[background technology]
At present, the boiler of power plant of China and general industry boiler, all based on fire coal, enter and affect atmospheric environment in air,
Even form acid rain, harm human health and animal and plant growth in some areas.The most domestic sulfur method many employings wet type
Desulfurization, desulfurizing agent many employings limestone and calcium hydroxide etc., but cost of investment is too big, and many factories enthusiasm is the highest, so must
A kind of relatively inexpensive desulfurizing agent must be developed.
Alkaline residue is commonly called as white clay, refers to the alkaline scrap material of discharge in alkaline in commercial production or alkali-treated journey.Alkaline residue is main
Mineralogical composition is the CaCO that granular crystal is bad3, its particle diameter is usually 2～5 μm, and about a diameter of 10 μm of aggregation, and it gathers
Collection diameter then reaches 15～25 μm.Therefore, alkaline residue is the solid waste that a kind of hole is big, granule is thin.Alkaline residue main component is
CaCO3, and its particle diameter is far smaller than the particle diameter of limestone of existing flue gas desulfurization, physical characteristic is better than limestone, therefore can generation
It is used as fume desulfurizing agent for limestone.And the calcium sulfate that the emission after caustic sludge desulfuration is stable chemical nature and calcium sulfite,
Can discharge together with boiler slag, not interfere with the process of lime-ash.
General the used boiler flue gas desulfurization device of factory of enterprise needs outsourcing desulfurizing agent, and the side-product obtained is slag liquid
Or semi-finished product, need to become finished product after processed separately.
[summary of the invention]
In view of this, for overcoming the deficiencies in the prior art, it is necessary to provide a kind of boiler smoke alkaline residue wet desulphurization device,
It is integrated alkaline residue emission treatment, boiler flue gas desulfurization and desulfuration byproduct and processes, and provides one for boiler smoke alkaline residue wet desulphurization
Overlap complete processing system.
The technical scheme is that a kind of boiler smoke alkaline residue wet desulphurization device, including absorbing liquid supply system, take off
Sulfur system and gypsum dehydration system；Described absorbing liquid supply system include adding water alkaline residue be stirred slurrying pulper (1),
Store the alkaline residue slurry pool (2) of alkaline residue serosity and to described desulphurization system conveying alkaline residue serosity from described alkaline residue slurry pool
Alkaline residue serosity pump (3)；Described desulphurization system includes absorption tower (4), absorbing liquid circulating pump (8), side-feeding mixer (9) and oxidation
Blower fan (10), is provided with spraying layer (5), demister (6) and oxidation stock tank (7) in described absorption tower (4), boiler smoke is from described suction
Receive tower (4) bottom laterally enter from bottom to top through conveying spraying layer (5) and described demister (6) after from described absorption tower
(4) discharging, described oxidation stock tank (7) is arranged on the bottom of described absorption tower (4), and described absorbing liquid circulating pump (8) is by described oxygen
Absorbing liquid in slurrying pond (7) is recycled to described spraying layer (5), described side-feeding mixer (9) laterally stirring described oxidation slurry
Pond (7), described oxidation fan (10)；Described gypsum dehydration system include successively Gypsum Fibrosum excavationg pump (11), Gypsum Fibrosum cyclone (12),
Vacuum belt dewaterer (13) and Gypsum Fibrosum storehouse (14), described Gypsum Fibrosum excavationg pump (11) is arranged on described oxidation stock tank (7) bottom
Outlet.
As preferably, described alkaline residue slurry pool (2) uses concrete lining glass flake structure, described alkaline residue slurry pool
(2) capacity is more than or equal to the alkaline residue serosity consumption of 8 hours in described boiler smoke alkaline residue wet desulphurization device.
As preferably, described absorbing liquid supply system is provided with 3 alkaline residues serosity pump (3), wherein 1 described alkaline residue slurry
Liquid pump (3) is standby, and the impeller of described alkaline residue serosity pump (3) is made up of the alloy material of anticorrosion antiwear.
As preferably, described absorption tower (4) are the steel-made tower with glass resin flake coating.
As preferably, described desulphurization system arranges 3 layers of described spraying layer (5) and 3 layers of described spraying layer (5) of difference are right
3 the described circulating pumps (8) answered, described spraying layer (5) uses fiberglass serosity shower.
As preferably, described demister (6) includes two-layer herringbone demister and three layers of flushing water.
As preferably, the lateral opening hole of described absorption tower (4) installs peace in oxidation air pipeline, described absorption tower (4)
The oxidation spray gun that dress is connected with described oxidation fan (10), described oxidation fan (10) uses roots blower, described oxidation fan
(10) equipped with acoustic filter and cooler and be provided with blimp on.
As preferably, every described absorption tower (4) arranges the described Gypsum Fibrosum excavationg pump (11) of 2 100% capacity, wherein
1 described Gypsum Fibrosum excavationg pump (11) is standby, and described Gypsum Fibrosum excavationg pump (11) is wear-resisting alloy steel material.
As preferably, a supernatant part for described Gypsum Fibrosum cyclone (12) returns described absorption tower (4), another part
Entering waste-water vortex device, the filter liquor of described vacuum belt dewaterer (13) returns to described absorption tower (4) or enters described suction
Receive in liquid supply system.
The invention has the beneficial effects as follows: the boiler smoke alkaline residue wet desulphurization device of (1) present invention, it integrates alkaline residue discharge
Process, boiler flue gas desulfurization and desulfuration byproduct process, and provide the process system of complete set for boiler smoke alkaline residue wet desulphurization
System, it is adaptable to alkaline, the large chemical complex of use boiler, makes full use of the alkaline residue that cannot process produced by alkaline, reduces
Operating cost, uses caustic sludge desulfuration both to save ammonia consumption, has processed again waste residue, reached not only to meet national requirements for environmental protection but also save
Save the purpose of operating cost；(2) the boiler smoke alkaline residue wet desulphurization device of the present invention uses the mode of tower internal oxidition, in desulfurization
Just by lateral stirrer system, air is broken for fine bubble in tower, greatly enhances contact surface, and improve
Time of contact, thus significantly improve the oxygenation efficiency of calcium sulfate, add the yield of side-product；(3) boiler smoke of the present invention
The slag liquid that absorption tower is discharged by gas alkaline residue wet desulphurization device carries out concentrating, processed, directly obtains by-produced gypsum.
[accompanying drawing explanation]
The structural representation of the boiler smoke alkaline residue wet desulphurization device that Fig. 1 is provided by the preferred embodiments of the present invention.
Fig. 2 is the structural representation on the absorption tower in Fig. 1.
Fig. 3 is the structural representation of another angle on the absorption tower in Fig. 1.
[detailed description of the invention]
For being more fully understood that the present invention, below with reference to accompanying drawing and instantiation, invention is described in detail.
The present invention relates to flue gas alkaline residue wet desulphurization device, utilize alkaline residue to make fume desulfurizing agent, be possible not only to reduce desulfurization
Cost, SO can be reduced again2Waste gas and the alkaline residue pollution to environment, its integrate alkaline residue emission treatment, boiler flue gas desulfurization and
Desulfuration byproduct processes, and provides the processing system of complete set for boiler smoke alkaline residue wet desulphurization, it is adaptable to alkaline and thermoelectricity
Supporting large chemical complex.
First, alkaline residue Wet Method Reaction principle is illustrated.Flue gas large area, with containing alkaline residue slurry liquid contacts, makes in flue gas
SO2It is dissolved in water and generates calcium bisulfite (Ca (HSO with alkaline residue slurry reaction3)2), under the conditions of blasting large quantity of air, make Asia
Calcium bisulfate (Ca (HSO3)2) oxidation generation dihydrate gypsum (CaSO4·2H2O), thus reduce SO in flue gas2The mesh of content
, the chemical reaction that this Absorption Desulfurization process occurs is as follows:
CaCO3+SO2+H2O→Ca(HSO3)2+CO2 (1)
Ca(HSO3)2+O2+CaCO3+3H2O→2CaSO4·2H2O+CO2 (2)
The boiler smoke alkaline residue wet desulphurization device of the present invention includes absorbing liquid supply system, desulphurization system and gypsum dehydration
System.Alkaline residue is added water slurrying input in desulphurization system by absorbing liquid supply system, provides absorbing liquid for desulphurization system.Desulfurization system
System removes the sulfur dioxide in boiler smoke, obtains the flue gas that can discharge.Gypsum dehydration system is by the slag after desulphurization system desulfurization
Liquid carries out processed, obtains gypsum by-product.
Refer to Fig. 1, in the boiler smoke alkaline residue wet desulphurization device of the preferred embodiment of the present invention, absorbing liquid supply system
System includes pulper 1, alkaline residue slurry pool 2, alkaline residue serosity pump 3；Desulphurization system includes absorption tower 4, being provided with spraying layer in absorption tower 4
5, demister 6 and oxidation stock tank 7, desulphurization system also includes the absorbing liquid circulating pump 8 for oxidation stock tank 7 service, side-feeding type stirring
Device 9 and oxidation fan 10；Gypsum dehydration system includes Gypsum Fibrosum excavationg pump 11, Gypsum Fibrosum cyclone 12, vacuum belt dewaterer 13, stone
Cream storehouse 14.
In absorbing liquid supply system, alkaline residue produced by steaming suction device in alkali producing process is added water and stirs by pulper 1
Mixing is starched, and is stored in alkaline residue slurry pool 2 after making alkaline residue serosity, can be delivered in desulphurization system make by alkaline residue serosity pump 3
Use for desulfurizing agent.Slurry mixer in pulper 1 uses carbon steel line with rubber material.
Alkaline residue slurry pool 2 presses the consumption design of alkaline residue serosity 8h, and (capacity of alkaline residue serosity 2 was not less than alkaline residue serosity 8 hours
Consumption), it uses concrete lining glass flake anticorrosion, it is ensured that the service life of alkaline residue slurry pool 2.Institute in the present embodiment
The CaCO of the alkaline residue used3Content is 17%, and in alkaline residue slurry pool 2, the concentration of alkaline residue serosity is 20%.
Incorporated by reference to refering to Fig. 2 and Fig. 3, in absorbing liquid supply system, be provided with 3 alkaline residue serosity pumps 3 (wherein 1 standby
With), the power that alkaline residue serosity pump 3 is supplied as white clay serosity, provide fresh alkaline residue solution for desulphurization system.Alkaline residue serosity pump
The impeller of 3 is made up of the alloy material of anticorrosion antiwear.Desulphurization system includes absorption tower 4, is provided with spraying layer 5, except mist in absorption tower 4
Device 6 and oxidation stock tank 7.Boiler smoke laterally enters from bottom, absorption tower 4, from bottom to top after spraying layer 5 and demister 6 from
Desulfurizing tower 4 is discharged.
Absorption tower 4 is the steel-made tower with glass resin flake coating, and it uses hollow-spraying-tower structure, processes big flue gas
During amount, tower internals is few, and resistance is little, and operation stability is high.
Spraying layer 5 desulfurizing tower bottom is designed with three layers of serosity spraying layer, absorbing liquid through absorbing liquid circulating pump 8 pressurize after, from
The nozzle at high speeds ejection of distribution on spraying layer 5, forms the desulfurization droplet of substantial amounts of bigger serface.This desulphurization system arranges 3
Layer spraying layer 5 and 3 circulating pumps 8, circulating pump 8 is arranged according to unit style.Spraying layer 5 uses fiberglass (FRP) serosity shower.
Demister 6 is three layers of ridge type demister, is made up of two-layer herringbone demister and three layers of flushing water, wherein first
Level demister is thick except mist, and second level demister is that essence is except mist.
Oxidation stock tank 7 is arranged at the bottom on absorption tower 4, the liquid fallen in access absorption tower 4.It uses to aoxidize stock tank 7
Concrete lining glass flake anticorrosion, it is ensured that service life.In oxidation stock tank 7, liquid absorption element is more complicated, is by CaSO3/
Ca(HSO3)2The compound ion solution system of composition, calcium sulfite therein is to absorb SO2Main component.
Absorbing liquid circulating pump 8 provides the absorbent of big flow for absorption tower, it is ensured that gas-liquid two-phase is fully contacted, and improves SO2
Absorption efficiency.Absorption tower 4 sets 3 absorbing liquid circulating pumps 8, and absorbing liquid circulating pump 8 is centrifugal pump (without blocking), and impeller is by anticorrosion
Wear-resisting alloy steel material is made, and can be adapted to slurry erosion and wear-resisting requirement.
Deposit for serosity in preventing tower, bottom absorption tower 4, be provided with 6 side-feeding mixers 9, serosity is stirred,
Serosity is made to keep mixed flow state, it is ensured that serosity, to the absorption of sulfur dioxide and respond, ensures the good of calcium sulfite simultaneously
Oxidation effectiveness.The blade of side-feeding mixer 9 uses antifriction alloy material to make.
Absorption tower 4 is provided with the oxidation fan 10 of 3 100% capacity, wherein one standby, for providing oil-free in absorption tower 4
Oxidation air, it is ensured that complete oxidation.The lateral opening hole on absorption tower 4 installs oxidation air pipeline, installs and oxidation wind in absorption tower 4
The oxidation spray gun that machine is connected, there is sufficient oxidation reaction with serosity in tower in the air of injection.Oxidation fan 10 uses Roots's wind
Machine, is calcium sulfate by calcium sulfite oxidation.Take to force oxidation during oxidation stock tank 7 generates Gypsum Fibrosum, oxidation wind is set
Machine 10 is by HSO unoxidized in serosity3 -And SO3 2-it is oxidized to SO4 2-.The flow of roots blower considers 10% surplus, and pressure considers
The surplus of 10% is left after the resistance of ducting and surface resistance.Equipped with acoustic filter and cooler on oxidation fan 10, and arrange every
Sound cover, should at 85dB (A) below at 1 meter from device housings outer noise.Oxidation fan is under design work pressure, and flow error is not
More than 1%.The rotatable parts of oxidation fan are through strict static balance experiment.Desulphurization system sets 3 oxidation fans 10, wherein
2 operations, remaining 1 standby.
In above-mentioned desulphurization system, the former flue gas from boiler induced-draft fan is from entrance absorption tower, bottom 4, in absorption tower 4
From bottom to top through 3 layers of spraying layer 5, it is fully contacted reaction removing SO with the circulation fluid adverse current containing fresh alkaline residue solution2, after desulfurization
Neat stress again through transmission from one meridian to another two-layer ridge type demister 6 except mist, up to standard after drain into air through tower top direct dehumidification chimney.Oxidation slurry
The calcium sulfate generated after oxidation in pond 7 is discharged by Gypsum Fibrosum excavationg pump 11, enters follow-up gypsum dehydration system.Want according to specification
Ask, flue arranges corresponding instrument measurement and flue gas analysis sampling test interface, meets the extensive of former flue gas and neat stress
In the range of detection need.
In gypsum dehydration system, corresponding every absorption tower 4 arranges the Gypsum Fibrosum excavationg pump 11 of 2 100% capacity, and wherein 1
Platform is standby.
Gypsum slurries bottom oxidation stock tank 7 enters Gypsum Fibrosum cyclone 12 after discharging absorption tower 4 via Gypsum Fibrosum excavationg pump 11
Concentrating, the gypsum slurries after concentration is dehydrated through vacuum belt dewaterer 13, while dehydration is rinsed Gypsum Fibrosum, with full
The quality requirements of foot Gypsum Fibrosum comprehensive utilization, after dehydration, Gypsum Fibrosum water content is less than 15% (wt), enters Gypsum Fibrosum storehouse 14 and stores.Gypsum Fibrosum is arranged
Go out pump 11 for wear-resisting alloy steel material.
In gypsum dehydration system, a supernatant part for Gypsum Fibrosum cyclone 12 returns to absorption tower 4, is partly into waste water
Cyclone.The filter liquor of vacuum belt dewaterer 13 returns to absorption tower 4 as supplementary water, to maintain the liquid level in absorption tower 4 to put down
Weighing apparatus, or enter in absorbing liquid supply system.
Individually below with 480000Nm3/ h boiler and 800000Nm3As a example by the flue gas desulfurization of/h boiler, Gypsum Fibrosum eddy flow is described
Device 12 and the parameter of vacuum belt dewaterer 13.
Table 1 480000Nm3/ h boiler smoke tolerance desulphurization system supporting Gypsum Fibrosum cyclone parameter
Table 2 800000Nm3/ h boiler smoke tolerance desulphurization system supporting Gypsum Fibrosum cyclone parameter
Table 3 480000Nm3/ h boiler smoke tolerance desulphurization system matched with vacuum belt dewaterer parameter
Table 4 800000Nm3/ h boiler smoke tolerance desulphurization system matched with vacuum belt dewaterer parameter
This covering device uses alkaline residue gypsum desulfurization design, the design of whole absorption tower can meet the blast of 2000Pa and wants
Ask.
Owing to desulfurization slurry corrosivity is bigger, on the premise of ensureing technological process peace, steady, long, full, excellent operating, pipe
Take into full account during road design that working media, to the corrosion of tubing and abrasion, selects appropriate tubing and valve: serosity pipeline
Valve requires as carbon steel line with rubber material or antifriction alloy material, technique water pipe employing carbon steel material.
Hereinafter the work process of the boiler smoke alkaline residue wet desulphurization device to the present invention is set forth in, specifically
As follows:
First, the alkaline residue produced from alkali producing process is transported in pulper 1 carry out slurrying, for boiler flue gas desulfurization desulfurization
Deposit desulfurizing agent.The alkaline residue slurry storage prepared is in alkaline residue slurry pool 2, and can be transported to desulfurization by alkaline residue serosity pump 2
In system.
The flue gas sent here from the air-introduced machine of boiler from entrance absorption tower, bottom 4, flue gas adverse current in desulfurizing tower 4 and on, with
The absorbing liquid of top-down spraying layer 5 ejection sufficiently contacts, and the neat stress temperature after desulfurization reaches～60 DEG C.Absorption tower 4
Bottom is designed with three layers of serosity spraying layer, and absorbing liquid is after circulating pump pressurizes, and from spraying layer 5, the nozzle at high speeds of distribution sprays,
Form the desulfurization droplet of substantial amounts of bigger serface.On the one hand, flue gas from bottom to top connects with top-down absorbing liquid droplet
Touching, strong action of turbulent flow occurs, air-liquid is biphase carries out abundant mass-and heat-transfer, the SO in flue gas2Absorbed in a large number.On the other hand,
Being partially overlapped with each other between the conical droplet that each nozzle produces, the spray mist of three layers of spraying layer 5 generation is bored absorption tower 4
The coverage rate in cross section can reach more than 200%.Therefore, flue gas and absorbing liquid have high response probability.Above measure guarantees
Desulfurizing tower can reach more than 95% to the desulfuration efficiency of flue gas, makes neat stress energy qualified discharge.Three layers of spraying layer each corresponding one
Individual circulation slurry pump, dual-purpose one standby, when boiler load increases to 80% at ordinary circumstance (boiler 60% load) circulation slurry pump
Or sulfur content increases suddenly, can work by three circulating pumps simultaneously.It is two-layer ridge type demister above spraying layer, by used
Droplet in flue gas is caught by property power.Neat stress, through demister, is emitted in air by the direct exhaust chimney of tower top.
In oxidation stock tank 7, liquid absorption element is more complicated, is by CaSO3/Ca(HSO3)2The compound ion solution body of composition
System, calcium sulfite therein is to absorb SO2Main component.Side stirring is set at oxidation stock tank 7, on the one hand by side agitator
Oxidation air is shredded, to the CaSO at the bottom of pond by 9 current driven3Serosity aoxidizes, and ultimately generates calcium sulfate.Owing to constantly inhaling
Receive SO2, in the tower bottoming cycle liquid on absorption tower 4, the concentration of calcium sulfate incrementally increases, therefore sets on absorbing liquid circulating pump discharge pipe
Put branch road, calcium sulphate soln is discharged outside tower.
Calcium sulphate soln is discharged through Gypsum Fibrosum excavationg pump 11, enters follow-up gypsum dehydration system.Through Gypsum Fibrosum cyclone
After 12 concentrate, gypsum slurries is dehydrated through vacuum belt dewaterer 13 again, obtains Gypsum Fibrosum water content less than 15% (wt), entrance stone
Cream storehouse 14 is stored, and obtains gypsum by-product.
Compared with prior art, the flue gas alkaline residue wet desulphurization device of the present invention at least has the characteristics that and innovates:
(1) the boiler smoke alkaline residue wet desulphurization device of the present invention, its integrate alkaline residue emission treatment, boiler flue gas desulfurization and
Desulfuration byproduct processes, and provides the processing system of complete set for boiler smoke alkaline residue wet desulphurization, it is adaptable to alkaline, use pot
The large chemical complex of stove, makes full use of the alkaline residue that cannot process produced by alkaline, reduces operating cost, uses caustic sludge desulfuration
Both saved ammonia consumption, processed again waste residue, and reached not only to meet national requirements for environmental protection but also save the purpose of operating cost；
(2) the boiler smoke alkaline residue wet desulphurization device of the present invention uses the mode of tower internal oxidition, the most logical in desulfurizing tower
Cross lateral stirrer system and air be broken for fine bubble, greatly enhance contact surface, and improve time of contact,
Thus significantly improve the oxygenation efficiency of calcium sulfate, add the yield of side-product；
(3) the slag liquid that absorption tower is discharged by the boiler smoke alkaline residue wet desulphurization device of the present invention carries out concentrating, at dehydration
Reason, directly obtains by-produced gypsum.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed, but also
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that, for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (9)
1. a boiler smoke alkaline residue wet desulphurization device, it is characterised in that: described boiler smoke alkaline residue wet desulphurization device bag
Include absorbing liquid supply system, desulphurization system and gypsum dehydration system；Described absorbing liquid supply system includes adding water alkaline residue carrying out
The pulper (1) of stirring pulping, store the alkaline residue slurry pool (2) of alkaline residue serosity and to described de-from described alkaline residue slurry pool
Alkaline residue serosity pump (3) of sulfur system conveying alkaline residue serosity；Described desulphurization system include absorption tower (4), absorbing liquid circulating pump (8),
Side-feeding mixer (9) and oxidation fan (10), be provided with spraying layer (5), demister (6) and oxidation slurry in described absorption tower (4)
Pond (7), boiler smoke laterally enters from the bottom of described absorption tower (4) from bottom to top through conveying spraying layer (5) with described remove
Discharging from described absorption tower (4) after day with fog (6), described oxidation stock tank (7) is arranged on the bottom of described absorption tower (4), described suction
Receive liquid circulating pump (8) and the absorbing liquid in described oxidation stock tank (7) is recycled to described spraying layer (5), described side-feeding mixer
(9) the described oxidation stock tank (7) of lateral stirring, described oxidation fan (10)；Described gypsum dehydration system includes that Gypsum Fibrosum is discharged successively
Pump (11), Gypsum Fibrosum cyclone (12), vacuum belt dewaterer (13) and Gypsum Fibrosum storehouse (14), described Gypsum Fibrosum excavationg pump (11) is arranged on
The outlet of described oxidation stock tank (7) bottom.
Boiler smoke alkaline residue wet desulphurization device the most according to claim 1, it is characterised in that: described alkaline residue slurry pool
(2) using concrete lining glass flake structure, the capacity of described alkaline residue slurry pool (2) is more than or equal to described boiler smoke alkali
The alkaline residue serosity consumption of 8 hours in slag wet desulphurization device.
Boiler smoke alkaline residue wet desulphurization device the most according to claim 1, it is characterised in that: described absorbing liquid supply system
Being provided with 3 alkaline residues serosity pump (3) in system, wherein 1 described alkaline residue serosity pump (3) is standby, the impeller of described alkaline residue serosity pump (3)
It is made up of the alloy material of anticorrosion antiwear.
Boiler smoke alkaline residue wet desulphurization device the most according to claim 1, it is characterised in that: described absorption tower (4) are
Steel-made tower with glass resin flake coating.
Boiler smoke alkaline residue wet desulphurization device the most according to claim 4, it is characterised in that: described desulphurization system sets
Put 3 layers of described spraying layer (5) and 3 described circulating pumps (8) of 3 layers of described spraying layers (5) correspondence of difference, described spraying layer (5)
Use fiberglass serosity shower.
Boiler smoke alkaline residue wet desulphurization device the most according to claim 4, it is characterised in that: described demister (6) wraps
Include two-layer herringbone demister and three layers of flushing water.
Boiler smoke alkaline residue wet desulphurization device the most according to claim 4, it is characterised in that: described absorption tower (4)
Lateral opening hole installs, in installing oxidation air pipeline, described absorption tower (4), the oxidation spray gun being connected with described oxidation fan (10),
Described oxidation fan (10) uses roots blower, equipped with acoustic filter and cooler and be provided with sound insulation on described oxidation fan (10)
Cover.
Boiler smoke alkaline residue wet desulphurization device the most according to claim 1, it is characterised in that: every described absorption tower
(4) arranging the described Gypsum Fibrosum excavationg pump (11) of 2 100% capacity, wherein 1 described Gypsum Fibrosum excavationg pump (11) is standby, described stone
Cream excavationg pump (11) is wear-resisting alloy steel material.
Boiler smoke alkaline residue wet desulphurization device the most according to claim 1, it is characterised in that: described Gypsum Fibrosum cyclone
(12) a supernatant part returns to described absorption tower (4), and another part enters waste-water vortex device, described vacuum belt dewaterer
(13) filter liquor returns to described absorption tower (4) or enters in described absorbing liquid supply system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610640561.7A CN106268272A (en) | 2016-08-08 | 2016-08-08 | Boiler smoke alkaline residue wet desulphurization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610640561.7A CN106268272A (en) | 2016-08-08 | 2016-08-08 | Boiler smoke alkaline residue wet desulphurization device |
Publications (1)
| Publication Number | Publication Date |
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| CN106268272A true CN106268272A (en) | 2017-01-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108686481A (en) * | 2018-06-25 | 2018-10-23 | 江苏新欧环保资源综合利用有限公司 | Caustic sludge desulfuration and the two-way combined governance device of desulfurization wastewater and administering method |
| CN109224827A (en) * | 2018-10-22 | 2019-01-18 | 内蒙古锦联铝材有限公司 | A kind of Highway in Electrolytic Aluminium Production System flue gas becomes zero-emission wet desulfurization system |
| CN109589767A (en) * | 2018-12-17 | 2019-04-09 | 郑州大学 | The method and apparatus of pollutant integration removing in a kind of glass furnace fume |
| CN111468510A (en) * | 2020-04-20 | 2020-07-31 | 华电电力科学研究院有限公司 | Device and method for treating alkaline hazardous waste by using clean flue gas of coal-fired power plant |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19502632A1 (en) * | 1994-02-10 | 1995-08-17 | Ver Energiewerke Ag | Operating method for brown coal-fired power station flue gas desulphurisation |
| CN1994528A (en) * | 2006-04-18 | 2007-07-11 | 福建鑫泽环保设备工程有限公司 | Method for applying causticized white sludge in removal of sulfur dioxide from fume |
| CN204447740U (en) * | 2015-02-28 | 2015-07-08 | 唐山三友热电有限责任公司 | Carbide slag slurries and alkaline residue slurries combined desulfurization device |
| CN105709585A (en) * | 2016-01-27 | 2016-06-29 | 广西博世科环保科技股份有限公司 | Double-tower efficient wet desulphurization device |
-
2016
- 2016-08-08 CN CN201610640561.7A patent/CN106268272A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19502632A1 (en) * | 1994-02-10 | 1995-08-17 | Ver Energiewerke Ag | Operating method for brown coal-fired power station flue gas desulphurisation |
| CN1994528A (en) * | 2006-04-18 | 2007-07-11 | 福建鑫泽环保设备工程有限公司 | Method for applying causticized white sludge in removal of sulfur dioxide from fume |
| CN204447740U (en) * | 2015-02-28 | 2015-07-08 | 唐山三友热电有限责任公司 | Carbide slag slurries and alkaline residue slurries combined desulfurization device |
| CN105709585A (en) * | 2016-01-27 | 2016-06-29 | 广西博世科环保科技股份有限公司 | Double-tower efficient wet desulphurization device |
Non-Patent Citations (1)
| Title |
|---|
| 展锦程等: "《环境保护》", 31 May 2010, 中国电力出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108686481A (en) * | 2018-06-25 | 2018-10-23 | 江苏新欧环保资源综合利用有限公司 | Caustic sludge desulfuration and the two-way combined governance device of desulfurization wastewater and administering method |
| CN109224827A (en) * | 2018-10-22 | 2019-01-18 | 内蒙古锦联铝材有限公司 | A kind of Highway in Electrolytic Aluminium Production System flue gas becomes zero-emission wet desulfurization system |
| CN109589767A (en) * | 2018-12-17 | 2019-04-09 | 郑州大学 | The method and apparatus of pollutant integration removing in a kind of glass furnace fume |
| CN111468510A (en) * | 2020-04-20 | 2020-07-31 | 华电电力科学研究院有限公司 | Device and method for treating alkaline hazardous waste by using clean flue gas of coal-fired power plant |
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