CN205760593U - Limestone gypsum wet flue gas desulfurizing device - Google Patents
Limestone gypsum wet flue gas desulfurizing device Download PDFInfo
- Publication number
- CN205760593U CN205760593U CN201620660752.5U CN201620660752U CN205760593U CN 205760593 U CN205760593 U CN 205760593U CN 201620660752 U CN201620660752 U CN 201620660752U CN 205760593 U CN205760593 U CN 205760593U
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- China
- Prior art keywords
- slurry
- limestone
- gypsum
- flue gas
- gypsum fibrosum
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- 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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Abstract
The utility model discloses a kind of limestone gypsum wet flue gas desulfurizing device, including SO2Absorption plant, lime stone slurry preparation facilities, gypsum dewatering equipment and emptying and accident serosity device, boiler smoke can be carried out desulfurization, except mist process after directly discharge, simultaneously by produce gypsum slurries recycle after processed.This utility model desulfurizing tower unit style design spraying layer, spraying layer can separate spray, and enhances the adaptability to flue gas change；Meanwhile, spraying layer nozzle is evenly arranged on the cross section of desulfurizing tower, adds sprayed slurry coverage rate, it is possible to reliably realize the desulfuration efficiency of 96.3%.This utility model plant running is easy to maintenance, flue gas is changed strong adaptability, can realize higher desulfuration efficiency.
Description
Technical field
This utility model relates to flue gas desulfurization device field, especially relates to a kind of wet desulfurization of flue gas by limestone-gypsum method
Device.
Background technology
The pollution of environment is destroyed extremely serious by the sulfide in industrial smoke, therefore, how to realize industrial smoke
High-efficiency desulfurization is always one of key content of flue gas desulfurization technique area research.In numerous desulfurization technology, limestone-gypsum
The desulfuration efficiency of Wet Flue Gas Desulfurization Technology, up to more than 95%, has that the preparation of desulfurizing agent raw material is simple, desulfuration byproduct can return
Receiving the advantages such as utilization, its development is more ripe, and is widely used.But, wet desulfurization of flue gas by limestone-gypsum method technology there is also
The limitation such as the bad adaptability to different displacements flue gas, investment and operation and maintenance cost height, secondary pollution.
Utility model content
In order to solve the deficiencies in the prior art, this utility model provides a kind of wet desulfurization of flue gas by limestone-gypsum method device,
This plant running is easy to maintenance, and flue gas is changed strong adaptability, it is possible to reliably and securely realize flue gas desulfurization technique, and desulfurization is imitated
Rate is high.
This utility model solves the technical scheme of technical problem:
A kind of wet desulfurization of flue gas by limestone-gypsum method device, including SO2Absorption plant, lime stone slurry preparation facilities, stone
Cream dehydration device, emptying and accident serosity device.Described SO2Absorption plant includes desulfurizing tower, slurry circulating pump, oxidation fan,
Slurry pool, spraying layer, demister is set gradually from lower to upper inside described desulfurizing tower；Desulfurizing tower is provided with smoke inlet and smoke
Mouthful, smoke inlet is between slurry pool and spraying layer, and outlet flue is positioned at above demister；Slurry circulating pump outside desulfurizing tower leads to
Piping connects slurry pool and spraying layer；Oxidation fan outside desulfurizing tower is connected with slurry pool by pipeline；Set in slurry pool
There is agitator.
Described lime stone slurry preparation facilities includes limestone powder bin, limestone slurry flow container, limestone slurry liquid pump, described stone
Lime stone powder cabin connects limestone slurry flow container, and limestone slurry flow container is connected with slurry pool by limestone slurry liquid pump；Set in serum pot
There is agitator.
Described gypsum dewatering equipment includes Gypsum Fibrosum excavationg pump, Gypsum Fibrosum hydrocyclone, vacuum belt dewaterer, gas-liquid separation
Device, vacuum pump, Gypsum Fibrosum storehouse, slurry pool connects Gypsum Fibrosum hydrocyclone, Gypsum Fibrosum hydrocyclone effluent head by Gypsum Fibrosum excavationg pump
Connection accident slurry pool, Gypsum Fibrosum hydrocyclone underflow end connects vacuum belt dewaterer；Vacuum belt dewaterer passes through vacuum
Pipeline connects gas-liquid separator, and gas-liquid separator liquid stream end is connected with accident slurry pool by vacuum pump；
Described emptying and accident serosity device include accident slurry pool, Gypsum Fibrosum hydrocyclone, and accident slurry pool connects stone
Cream hydrocyclone, Gypsum Fibrosum hydrocyclone underflow end connection accident slurry pool, Gypsum Fibrosum hydrocyclone effluent head connects waste water
Processing system；It is provided with agitator in accident slurry pool.
Further, described spraying layer is provided with multilamellar, and every layer of spraying layer is furnished with a slurry circulating pump and is connected with slurry pool
Connect.Every layer of spraying layer is by the piping-main scheme grout distribution pipeline of band connecting branch and nozzle composition, and nozzle is evenly arranged in desulfurization
On the cross section of tower.
Further, described demister is designed as upper and lower two-stage, and two-stage demister is equipped with defroster cleaning apparatus, institute
State defroster cleaning apparatus and include washer jet and pipeline, washer jet be respectively arranged in one-level demister above and below with
And below two grades of demisters.
The wet desulfurization of flue gas by limestone-gypsum method device that this utility model provides provides the benefit that:
1, described spraying layer uses unit style design, and every layer of spraying layer is furnished with slurry circulating pump, and slurry circulating pump is the most only
Vertical work, enhances the adaptability that different displacements flue gas is changed by flue gas desulfurization device.
2, described spraying layer nozzle is evenly arranged on the cross section of desulfurizing tower, adds sprayed slurry coverage rate, makes suction
Receiving serosity to be fully contacted with flue gas, it is possible to be reliably achieved total desulfuration efficiency of 96.3%, the flue gas that improve desulfurizer takes off
Sulphur efficiency.
3, described defroster cleaning apparatus uses and automatically controls, intermitten service, and its operation maintenance is convenient, safe and reliable.
4, described accident slurry pool recirculated water major part recycles, and only small part is through Gypsum Fibrosum hydrocyclone processed
Process as waste water afterwards, decrease discharge of wastewater, alleviate the pollution to environment and destroy.
Accompanying drawing explanation
Fig. 1 is utility model structure chart.
In figure: 1 slurry pool；2 spraying layers；3 demisters；4 slurry circulating pumps；5 oxidation fans；6 limestone slurry flow containers；7 stones
Lime stone powder cabin；8 vacuum belt dewaterers；9 gas-liquid separators；10 Gypsum Fibrosum hydrocyclones；11 Gypsum Fibrosum hydrocyclones；12 accidents
Slurry pool.
Detailed description of the invention
As it is shown in figure 1, protection main body of the present utility model and embodiment are as follows:
The flue gas desulfurization device that this utility model provides, including SO2Absorption plant, lime stone slurry preparation facilities, Gypsum Fibrosum
Dehydration device, emptying and accident serosity device, described SO2Absorption plant includes desulfurizing tower, slurry circulating pump 4, oxidation fan 5,
Slurry pool 1, spraying layer 2, demister 3 is set gradually from lower to upper inside described desulfurizing tower；Desulfurizing tower is provided with smoke inlet and goes out
Mouth, smoke inlet is between slurry pool and spraying layer, and outlet flue is positioned at above demister；Slurry circulating pump outside desulfurizing tower
Slurry pool and spraying layer is connected by pipeline；Oxidation fan outside desulfurizing tower is connected with slurry pool by pipeline；In slurry pool
It is provided with agitator.
Further, spraying layer uses unit style design, is provided with multilamellar, every layer of spraying layer be furnished with a slurry circulating pump with
Slurry pool is connected, and this utility model device is furnished with five slurry circulating pumps altogether.Every layer of spraying layer is by the mother of band connecting branch
Control grout distribution pipeline and nozzle composition, nozzle is evenly arranged on the cross section of desulfurizing tower, and burner design uses hollow SiC
Nozzle.
Further, demister is designed as upper and lower two-stage, and two-stage demister is equipped with defroster cleaning apparatus, described removes
Day with fog clean device include washer jet and pipeline, washer jet be respectively arranged in one-level demister above and below and two
Below level demister.
Described lime stone slurry preparation facilities includes limestone powder bin 7, limestone slurry flow container 6, limestone slurry liquid pump, described
Limestone powder bin connects limestone slurry flow container, and limestone slurry flow container is connected with slurry pool by limestone slurry liquid pump；Limestone slurry
Agitator it is provided with in flow container.
Described gypsum dewatering equipment includes Gypsum Fibrosum excavationg pump, Gypsum Fibrosum hydrocyclone 10, vacuum belt dewaterer 8, gas-liquid
Separator 9, vacuum pump, Gypsum Fibrosum storehouse, slurry pool connects Gypsum Fibrosum hydrocyclone by Gypsum Fibrosum excavationg pump, and Gypsum Fibrosum hydrocyclone overflows
Stream end connection accident slurry pool, Gypsum Fibrosum hydrocyclone underflow end connects vacuum belt dewaterer；Vacuum belt dewaterer passes through
Vacuum pipe connects gas-liquid separator, and gas-liquid separator liquid stream end is connected with accident slurry pool by vacuum pump.
Described emptying and accident serosity device include accident slurry pool 12, Gypsum Fibrosum hydrocyclone 11, and accident slurry pool is even
Connecing Gypsum Fibrosum hydrocyclone, Gypsum Fibrosum hydrocyclone underflow end connection accident slurry pool, Gypsum Fibrosum hydrocyclone effluent head connects
Waste Water Treatment；It is provided with agitator in accident slurry pool.
Sweetening process of the present utility model is as follows:
Agstone is stored in limestone powder bin 7, and makes concentration 15～the serosity of 20%, is stored in lime stone slurry
In tank 6, limestone slurry flow container 6 is equipped with agitator to prevent serosity from precipitating.
As required, limestone slurry liquid pump serosity being sent into desulphurization tower slurry pool 1, slurry pool 1 serosity follows through serosity
Desulfurizing tower spraying layer 2 delivered to by ring pump 4, and is that fine drop sprays downwards through nozzle atomization.Meanwhile, boiler smoke is from boiler
Air-introduced machine is discharged, and enters desulfurizing tower after intensified blower fan traction, and in desulfurizing tower, flue gas is up, sprays downwards with spraying layer 2
The fine drop adverse current of serosity, both are fully contacted, and remove the SO in flue gas by chemical reaction2、SO3And the acid such as HCl, HF
Property gas.
Flue gas after spraying layer 2 desulfurization continues up, removes the drop carried secretly in flue gas through demister 3, by desulfurization
The outlet flue of tower is discharged.Meanwhile, occurring the drop after chemical reaction to fall into desulphurization tower slurry pool 1, slurry pool 1 is furnished with stirring
Device, and it is passed through oxidation air by oxidation fan 5, in slurry pool 1, serosity reacts further, and oxidizing and crystallizing is CaSO4·2H2O
Grain, forms gypsum slurries.
Cause demister 3 fault for avoiding the solid particle in flue gas to be adsorbed in demister 3 surface, utilize industry water pair
Demister 3 is carried out.Industry water cleans device through demister 3 and sprays to demister 3 from washer jet strength, takes away demister 3
On following current face and adverse current face, the solid particle of absorption, is respectively arranged in one-level demister 3 because demister 3 cleans device washer jet
Above and below and below two grades of demisters 3, therefore demister 3 cleans device to the top of one-level demister 3 and the end
The bottom of portion and two grades of demisters 3 is carried out, and it operates to intermitten service, and employing automatically controls.
According to CaSO in gypsum slurries in desulphurization tower slurry pool 14·2H2The change of O granule content, Gypsum Fibrosum excavationg pump is discharged
A certain amount of gypsum slurries is sent into Gypsum Fibrosum hydrocyclone 10 and is carried out preliminary hydro-extraction.Gypsum slurries takes off through Gypsum Fibrosum hydrocyclone 10
Overflow feeding accident slurry pool 12 after water, vacuum belt dewaterer 8 is delivered in underflow.Gypsum slurries on vacuum belt dewaterer 8
Carrying out sucking filtration under the effect of vacuum motive force, filtrate enters gas-liquid separator 9 through vacuum pipe, and the Gypsum Fibrosum of generation sends into Gypsum Fibrosum
Storehouse, can be directly as the raw materials for production in cement plant or construction material.Filtrate after gas-liquid separator 9 carries out gas-liquid separation, its liquid
Flow through vacuum pump and be recycled to accident slurry pool 12.
Further, for the content of the compositions such as chloride ion in control desulfurated plaster, gypsum slurries on vacuum belt dewaterer 8
While carrying out vacuum filtration, industry water is utilized gypsum slurries on vacuum belt dewaterer 8 to be rinsed, to eliminate solubility
Chloride, it is ensured that desulfurated plaster quality meets the requirement as construction material.
Accident slurry pool 12 recirculated water part is delivered to Gypsum Fibrosum hydrocyclone 11 and is dehydrated further, Gypsum Fibrosum hydrocyclone 11
Underflow be recycled to accident slurry pool 12, the overflow of Gypsum Fibrosum hydrocyclone 11 is delivered to power plant or municipal wastewater as waste water and is processed
System.Accident slurry pool 12 recirculated water returns limestone slurry flow container 6 reuse, thus realizes the desulfurizer circulation profit to resource
With, cost-effective.Additionally, be provided with agitator work in accident slurry pool 12, it is to avoid in pond, serosity deposition causes waste, Jin Erying
Ring desulfuration efficiency.
Embodiment described above is only to be described preferred implementation of the present utility model, not to this practicality
Novel scope is defined, and on the premise of without departing from this utility model design spirit, relevant technical staff in the field is to this
The various deformation of utility model and improvement, all should expand in protection domain as determined by this utility model claims.
Claims (5)
1. a wet desulfurization of flue gas by limestone-gypsum method device, including SO2Absorption plant, lime stone slurry preparation facilities, Gypsum Fibrosum
Dehydration device, emptying and accident serosity device, it is characterised in that described SO2Absorption plant include desulfurizing tower, slurry circulating pump,
Oxidation fan, sets gradually slurry pool, spraying layer, demister from lower to upper inside described desulfurizing tower, desulfurizing tower is provided with into cigarette
Mouth and outlet flue, smoke inlet is between slurry pool and spraying layer, and outlet flue is positioned at above demister, the serosity outside desulfurizing tower
Circulating pump connects slurry pool and spraying layer by pipeline, and the oxidation fan outside desulfurizing tower is connected with slurry pool by pipeline；
Described lime stone slurry preparation facilities includes limestone powder bin, limestone slurry flow container, limestone slurry liquid pump, described limestone
Powder cabin connects limestone slurry flow container, and limestone slurry flow container is connected with slurry pool by limestone slurry liquid pump；
Described gypsum dewatering equipment include Gypsum Fibrosum excavationg pump, Gypsum Fibrosum hydrocyclone, vacuum belt dewaterer, gas-liquid separator,
Vacuum pump, Gypsum Fibrosum storehouse, slurry pool connects Gypsum Fibrosum hydrocyclone by Gypsum Fibrosum excavationg pump, and Gypsum Fibrosum hydrocyclone effluent head connects
Accident slurry pool, Gypsum Fibrosum hydrocyclone underflow end connects vacuum belt dewaterer, and vacuum belt dewaterer passes through vacuum pipe
Connecting gas-liquid separator, gas-liquid separator liquid stream end is connected with accident slurry pool by vacuum pump；
Described emptying and accident serosity device include accident slurry pool, Gypsum Fibrosum hydrocyclone, and accident slurry pool connects parget water
Power cyclone, Gypsum Fibrosum hydrocyclone underflow end connection accident slurry pool, Gypsum Fibrosum hydrocyclone effluent head connects waste water and processes
System.
Wet desulfurization of flue gas by limestone-gypsum method device the most according to claim 1, it is characterised in that described spraying layer sets
Multilamellar, every layer of spraying layer is had to be furnished with a slurry circulating pump and be connected with slurry pool.
Wet desulfurization of flue gas by limestone-gypsum method device the most according to claim 2, it is characterised in that described every layer of spray
Layer is made up of piping-main scheme grout distribution pipeline and the nozzle of band connecting branch, and nozzle is evenly arranged on the cross section of desulfurizing tower.
Wet desulfurization of flue gas by limestone-gypsum method device the most according to claim 1, it is characterised in that described demister sets
It is calculated as upper and lower two-stage, two-stage demister is equipped with defroster cleaning apparatus.
Wet desulfurization of flue gas by limestone-gypsum method device the most according to claim 4, it is characterised in that described demister is clear
Cleaning device includes washer jet and pipeline, washer jet be respectively arranged in one-level demister above and below and two grades except mist
Below device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620660752.5U CN205760593U (en) | 2016-06-27 | 2016-06-27 | Limestone gypsum wet flue gas desulfurizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620660752.5U CN205760593U (en) | 2016-06-27 | 2016-06-27 | Limestone gypsum wet flue gas desulfurizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205760593U true CN205760593U (en) | 2016-12-07 |
Family
ID=58129119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620660752.5U Expired - Fee Related CN205760593U (en) | 2016-06-27 | 2016-06-27 | Limestone gypsum wet flue gas desulfurizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205760593U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107413178A (en) * | 2017-07-21 | 2017-12-01 | 华润电力（贺州）有限公司 | A kind of mutual dewatering system of falling desulfurization slurry of double tower |
| CN109126406A (en) * | 2018-06-22 | 2019-01-04 | 西安西矿环保科技有限公司 | Deep desulfuration demisting dust separation system for cement kiln end flue gas |
| CN111054197A (en) * | 2019-12-30 | 2020-04-24 | 江苏垦乐节能环保科技有限公司 | Semi-dry deep desulfurization method for sulfur-containing flue gas |
| CN112076615A (en) * | 2020-09-17 | 2020-12-15 | 佛山羽峰环保有限公司 | Kiln flue gas desulfurization process and desulfurization system applying same |
| CN115006988A (en) * | 2022-07-06 | 2022-09-06 | 河南城建学院 | Desulfurization and denitrification dust removal device |
-
2016
- 2016-06-27 CN CN201620660752.5U patent/CN205760593U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107413178A (en) * | 2017-07-21 | 2017-12-01 | 华润电力（贺州）有限公司 | A kind of mutual dewatering system of falling desulfurization slurry of double tower |
| CN107413178B (en) * | 2017-07-21 | 2023-04-28 | 华润电力（贺州）有限公司 | Double-tower mutually inverted desulfurization slurry dehydration system |
| CN109126406A (en) * | 2018-06-22 | 2019-01-04 | 西安西矿环保科技有限公司 | Deep desulfuration demisting dust separation system for cement kiln end flue gas |
| CN111054197A (en) * | 2019-12-30 | 2020-04-24 | 江苏垦乐节能环保科技有限公司 | Semi-dry deep desulfurization method for sulfur-containing flue gas |
| CN111054197B (en) * | 2019-12-30 | 2022-04-22 | 江苏垦乐节能环保科技有限公司 | Semi-dry deep desulfurization method for sulfur-containing flue gas |
| CN112076615A (en) * | 2020-09-17 | 2020-12-15 | 佛山羽峰环保有限公司 | Kiln flue gas desulfurization process and desulfurization system applying same |
| CN115006988A (en) * | 2022-07-06 | 2022-09-06 | 河南城建学院 | Desulfurization and denitrification dust removal device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20180627 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |