CN205760582U - Limestone-plaster wet desulfurizing system - Google Patents
Limestone-plaster wet desulfurizing system Download PDFInfo
- Publication number
- CN205760582U CN205760582U CN201620652657.0U CN201620652657U CN205760582U CN 205760582 U CN205760582 U CN 205760582U CN 201620652657 U CN201620652657 U CN 201620652657U CN 205760582 U CN205760582 U CN 205760582U
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- China
- Prior art keywords
- limestone
- flue gas
- slurry
- gypsum
- slurry pool
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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.)
- Expired - Fee Related
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Abstract
This utility model is seen and is disclosed a kind of limestone-plaster wet desulfurizing system, including SO2Absorption plant, flue gas device, lime stone slurry preparation facilities, gypsum dewatering equipment, emptying and accident serosity device, boiler smoke can be carried out desulfurization, except mist process after directly discharge, the gypsum slurries of generation is directly recycled after processed simultaneously.This utility model is provided with flue gas device, can realize that desulfurizer is properly functioning and bypass runs during fault, and be furnished with sealing system, it is to avoid flue gas is revealed and polluted environment；The employing of demister purging system automatically controls, intermitten service, and its operation maintenance is convenient.This utility model sulfur removal technology realize that fool proof reliably its operation maintenance is convenient, the high-quality to desulfuration byproduct can be realized simultaneously and recycle.
Description
Technical field
This utility model relates to flue gas desulphurization system field, especially relates to a kind of wet desulfurization of flue gas by limestone-gypsum method
System.
Background technology
Wet desulfurization of flue gas by limestone-gypsum method technology is that development at present is more ripe, and widely used wet flue gas takes off
One of sulfur technology, its desulfuration efficiency is up to more than 95%.Wet desulfurization of flue gas by limestone-gypsum method technology tool desulfuration efficiency is high, de-
The advantages such as sulfur agent raw material simple, the desulfuration byproduct recoverable of preparation, but there is also desulphurization system investment simultaneously and run
Maintenance cost is high, flue gas is revealed and caused the limitation such as environmental pollution.
Utility model content
This utility model is contemplated to solve the deficiencies in the prior art, it is provided that a kind of wet desulfurization of flue gas by limestone-gypsum method
System, this utility model can reliably and securely realize flue gas desulfurization technique, and system operation maintenance is convenient, can realize desulfurization
The high-quality of side-product recycles；Flue gas device sealing property is reliable, when the design of by-pass damper door provides failure condition
The operation passage of flue gas, improve the safety of apparatus system, it is to avoid flue gas is revealed the pollution to environment and destroyed；Demister is clear
System of washing uses and automatically controls, intermitten service, and its operation maintenance is convenient, safe and reliable.
This utility model solves the technical scheme of technical problem:
A kind of wet desulfurization of flue gas by limestone-gypsum method system, including SO2Absorption plant, flue gas device, lime stone slurry system
Standby device, gypsum dewatering equipment, emptying and accident serosity device, 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；Serosity outside desulfurizing tower
Circulating pump connects slurry pool and spraying layer by pipeline；Oxidation fan outside desulfurizing tower is connected with slurry pool by pipeline；Slurry
Agitator it is provided with in liquid pool.
Described flue gas device includes former gas baffle door, neat stress baffle door, by-pass damper door, bypass flue, described former
Gas baffle door is positioned at desulfurizing tower smoke inlet, and neat stress baffle door is positioned at desulfurizing tower outlet flue, and by-pass damper door is positioned at bypass cigarette
Road.
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 former gas baffle door, neat stress baffle door, by-pass damper door are equipped with sealing system, and adopt
With venetian blind type double containment baffle arrangement, it is ensured that " zero " reveals.
Further, described demister is designed as upper and lower two-stage, and two-stage demister is equipped with demister purging system, institute
State demister purging system 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 system that this utility model provides provides the benefit that:
1, described flue gas device sealing property is reliable, the operation of flue gas when the design of by-pass damper door provides failure condition
Passage, improve the safety of apparatus system, it is to avoid flue gas is revealed the pollution to environment and destroyed.
2, described demister purging system uses and automatically controls, intermitten service, and its operation maintenance is convenient, safe and reliable.
3, it is equipped with agitator in described slurry pool, limestone slurry flow container and accident slurry pool, can the most anti-locking system
Device entoplasm liquid precipitate causes waste, and then affects desulfuration efficiency.
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 desulphurization system that this utility model provides, including SO2Prepared by absorption plant, flue gas device, lime stone slurry
Device, gypsum dewatering equipment, emptying and accident serosity device, described SO2Absorption plant includes desulfurizing tower, slurry circulating pump 4, oxygen
Wind-transformation machine 5, sets gradually slurry pool 1, spraying layer 2, demister 3 from lower to upper inside described desulfurizing tower；Desulfurizing tower be provided with into
Mouth and outlet flue, smoke inlet is between slurry pool and spraying layer, and outlet flue is positioned at above demister；Slurry outside desulfurizing tower
Liquid circulating pump connects slurry pool and spraying layer by pipeline；Oxidation fan outside desulfurizing tower is connected with slurry pool by pipeline；
Agitator it is provided with in slurry pool.
Further, demister is designed as upper and lower two-stage, and two-stage demister is equipped with demister purging system, described removes
Day with fog purging system includes washer jet and pipeline, washer jet be respectively arranged in one-level demister above and below and two
Below level demister.
Described flue gas device includes former gas baffle door, neat stress baffle door, by-pass damper door, bypass flue, described former
Gas baffle door is positioned at desulfurizing tower smoke inlet, and neat stress baffle door is positioned at desulfurizing tower outlet flue, and by-pass damper door is positioned at bypass cigarette
In road.Former gas baffle door, neat stress baffle door, by-pass damper door are equipped with sealing system, and use venetian blind type double containment
Baffle arrangement, it is ensured that " zero " reveals.
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.
According to system needs, limestone slurry liquid pump serosity being sent into desulphurization tower slurry pool 1, slurry pool 1 serosity is through slurry
Desulfurizing tower spraying layer 2 delivered to by liquid circulating pump 4, and is that fine drop sprays downwards through nozzle atomization.Meanwhile, boiler smoke from
Boiler induced-draft fan 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 the serosity gone out, both are fully contacted, and remove the SO in flue gas by chemical reaction2、SO3And HCl, HF
Deng sour 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.
When properly functioning, the former gas baffle door of flue gas device and neat stress baffle door are opened, and by-pass damper door is closed, cigarette
Gas passes through SO2Absorption plant realizes discharging after desulfurization processes.In case of a fault, flue gas device by-pass damper door is opened, former cigarette
Gas baffle door and neat stress baffle door are closed, and flue gas is then expelled directly out by bypass flue.
Further, cause demister 3 fault for avoiding the solid particle in flue gas to be adsorbed in demister 3 surface, profit
With industry water, demister 3 is carried out.Industry water sprays to demister 3 through demister 3 purging system from washer jet strength, band
Walk the solid particle of absorption on demister 3 following current face and adverse current face, because demister 3 purging system washer jet is respectively arranged in one
Above and below and below two grades of demisters 3 of level demister 3, therefore demister 3 purging system is to one-level demister 3
The bottom of top and bottom 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, calcium plaster on vacuum belt dewaterer 8
When liquid carries out vacuum filtration, industry water is utilized gypsum slurries on vacuum belt dewaterer 8 to be rinsed, to eliminate soluble chlorine
Compound, it is achieved the high-quality of desulfuration byproduct is recycled.
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 recycling of desulphurization system, saves
Cost.Additionally, be provided with agitator work in accident slurry pool 12, it is to avoid in pond, serosity deposition causes waste, and then affects desulfurization
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 (6)
1. a wet desulfurization of flue gas by limestone-gypsum method system, including SO2Prepared by absorption plant, flue gas device, lime stone slurry
Device, gypsum dewatering equipment, emptying and accident serosity device, it is characterised in that described SO2Absorption plant includes desulfurizing tower, slurry
Liquid circulating pump, oxidation fan, set gradually slurry pool, spraying layer, demister, on desulfurizing tower from lower to upper inside described desulfurizing tower
Being provided with smoke inlet and outlet flue, smoke inlet is between slurry pool and spraying layer, and outlet flue is positioned at above demister, outside desulfurizing tower
The slurry circulating pump in portion connects slurry pool and spraying layer by pipeline, and the oxidation fan outside desulfurizing tower passes through pipeline and slurry pool
Connection；
Described flue gas device includes former gas baffle door, neat stress baffle door, by-pass damper door, bypass flue, described former flue gas
Baffle door is positioned at desulfurizing tower smoke inlet, and neat stress baffle door is positioned at desulfurizing tower outlet flue, and by-pass damper door is positioned at bypass flue；
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 system the most according to claim 1, it is characterised in that described former flue gas keeps off
Plate door, neat stress baffle door, by-pass damper door are equipped with sealing system.
Wet desulfurization of flue gas by limestone-gypsum method system the most according to claim 1 and 2, it is characterised in that described former flue gas
Baffle door, neat stress baffle door, by-pass damper door use venetian blind type double containment baffle arrangement.
Wet desulfurization of flue gas by limestone-gypsum method system the most according to claim 1, it is characterised in that described demister divides
For upper and lower two-stage, two-stage demister is equipped with demister purging system.
Wet desulfurization of flue gas by limestone-gypsum method system the most according to claim 4, it is characterised in that described demister is clear
The system of washing includes washer jet and pipeline, washer jet be respectively arranged in one-level demister above and below and two grades except mist
Below device.
Wet desulfurization of flue gas by limestone-gypsum method system the most according to claim 1, it is characterised in that described slurry pool, stone
It is equipped with agitator in lime stone serum pot and accident slurry pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620652657.0U CN205760582U (en) | 2016-06-27 | 2016-06-27 | Limestone-plaster wet desulfurizing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620652657.0U CN205760582U (en) | 2016-06-27 | 2016-06-27 | Limestone-plaster wet desulfurizing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205760582U true CN205760582U (en) | 2016-12-07 |
Family
ID=58128623
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620652657.0U Expired - Fee Related CN205760582U (en) | 2016-06-27 | 2016-06-27 | Limestone-plaster wet desulfurizing system |
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| CN (1) | CN205760582U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106904711A (en) * | 2017-04-20 | 2017-06-30 | 盐城工学院 | A kind of calcium carbonate waste water circulation recovery system and calcium carbonate circulating purification system |
| CN107998865A (en) * | 2018-01-17 | 2018-05-08 | 青岛科技大学 | A kind of flue-gas dust-removing and desulfurization cleaning system |
| 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 |
| CN109908736A (en) * | 2019-04-02 | 2019-06-21 | 江苏鑫华能环保工程股份有限公司 | Limestone-gypsum wet desulfuration device |
| CN111099756A (en) * | 2019-12-27 | 2020-05-05 | 浙江德创环保科技股份有限公司 | Solid reducing process and system for wastewater for limestone-gypsum wet desulphurization |
| CN112441764A (en) * | 2020-11-30 | 2021-03-05 | 天津中材工程研究中心有限公司 | Improved structure of gypsum dewatering system of cement wet desulphurization process in cement industry |
| CN113877402A (en) * | 2021-11-02 | 2022-01-04 | 福建龙净环保股份有限公司 | Wet desulphurization process system and wet desulphurization process method with ultralow wastewater discharge |
| CN109908736B (en) * | 2019-04-02 | 2024-04-30 | 江苏鑫华能环保工程股份有限公司 | Limestone gypsum wet desulfurization device |
-
2016
- 2016-06-27 CN CN201620652657.0U patent/CN205760582U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106904711A (en) * | 2017-04-20 | 2017-06-30 | 盐城工学院 | A kind of calcium carbonate waste water circulation recovery system and calcium carbonate circulating purification system |
| CN107998865A (en) * | 2018-01-17 | 2018-05-08 | 青岛科技大学 | A kind of flue-gas dust-removing and desulfurization cleaning system |
| 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 |
| CN109908736A (en) * | 2019-04-02 | 2019-06-21 | 江苏鑫华能环保工程股份有限公司 | Limestone-gypsum wet desulfuration device |
| CN109908736B (en) * | 2019-04-02 | 2024-04-30 | 江苏鑫华能环保工程股份有限公司 | Limestone gypsum wet desulfurization device |
| CN111099756A (en) * | 2019-12-27 | 2020-05-05 | 浙江德创环保科技股份有限公司 | Solid reducing process and system for wastewater for limestone-gypsum wet desulphurization |
| CN111099756B (en) * | 2019-12-27 | 2022-08-26 | 浙江德创环保科技股份有限公司 | Solid reducing process and system for wastewater for limestone-gypsum wet desulphurization |
| CN112441764A (en) * | 2020-11-30 | 2021-03-05 | 天津中材工程研究中心有限公司 | Improved structure of gypsum dewatering system of cement wet desulphurization process in cement industry |
| CN112441764B (en) * | 2020-11-30 | 2022-07-12 | 天津中材工程研究中心有限公司 | Improved structure of gypsum dewatering system of cement wet desulphurization process in cement industry |
| CN113877402A (en) * | 2021-11-02 | 2022-01-04 | 福建龙净环保股份有限公司 | Wet desulphurization process system and wet desulphurization process method with ultralow wastewater discharge |
| CN113877402B (en) * | 2021-11-02 | 2023-07-14 | 福建龙净环保股份有限公司 | Wet desulfurization process system and wet desulfurization process method with ultralow wastewater discharge capacity |
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| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20180627 |