CN107754592A - A kind of desulfurization slurry Recovery Purifying utilizes system - Google Patents
A kind of desulfurization slurry Recovery Purifying utilizes system Download PDFInfo
- Publication number
- CN107754592A CN107754592A CN201711286178.7A CN201711286178A CN107754592A CN 107754592 A CN107754592 A CN 107754592A CN 201711286178 A CN201711286178 A CN 201711286178A CN 107754592 A CN107754592 A CN 107754592A
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- China
- Prior art keywords
- slurries
- pipeline
- separator
- slurry
- mist eliminator
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- 239000002002 slurry Substances 0.000 title claims abstract description 229
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 82
- 230000023556 desulfurization Effects 0.000 title claims abstract description 49
- 238000011084 recovery Methods 0.000 title claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 238000011010 flushing procedure Methods 0.000 claims abstract description 49
- 239000003595 mist Substances 0.000 claims abstract description 42
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 238000004891 communication Methods 0.000 claims abstract description 21
- 239000007921 spray Substances 0.000 claims abstract description 19
- 238000013459 approach Methods 0.000 claims abstract description 12
- 238000001914 filtration Methods 0.000 claims description 26
- 239000000706 filtrate Substances 0.000 claims description 25
- 238000004140 cleaning Methods 0.000 claims description 7
- 239000005864 Sulphur Substances 0.000 claims description 4
- 235000019504 cigarettes Nutrition 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims description 2
- 238000000746 purification Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 24
- 230000007115 recruitment Effects 0.000 abstract description 3
- 239000010865 sewage Substances 0.000 abstract description 3
- 239000002912 waste gas Substances 0.000 abstract description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 15
- 239000003546 flue gas Substances 0.000 description 15
- 239000010440 gypsum Substances 0.000 description 14
- 229910052602 gypsum Inorganic materials 0.000 description 14
- 230000006872 improvement Effects 0.000 description 13
- 239000002245 particle Substances 0.000 description 8
- 239000003245 coal Substances 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000013618 particulate matter Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 235000019738 Limestone Nutrition 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003020 moisturizing effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
-
- 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
-
- 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
- B01D53/96—Regeneration, reactivation or recycling of reactants
-
- 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
Abstract
The invention provides a kind of desulfurization slurry Recovery Purifying to utilize system, belongs to technical field of waste gas treatment, including desulfuration absorbing tower, slurries drawing pump and slurries separator；The side wall of desulfuration absorbing tower is provided with gas approach, the top of desulfuration absorbing tower is provided with exhanst gas outlet, the inner bottom surface of desulfuration absorbing tower is provided with slurry pool, the inside of desulfuration absorbing tower is provided with slurries spray equipment, for slurries spray equipment between gas approach and exhanst gas outlet, slurries spray equipment is provided with slurry circulating pump with slurry pool by pipeline communication and pipeline；Demister is provided between slurries spray equipment and exhanst gas outlet, the above and or below of demister is provided with the first mist eliminator flushing device；Slurries drawing pump is provided with by pipeline communication and pipeline between slurry pool and the first mist eliminator flushing device, slurries separator is arranged at the liquid feeding end or outlet end of slurries drawing pump.It can improve desulphurization system Sewage treatment utilization rate, reduce new water magnitude of recruitment.
Description
Technical field
The present invention relates to technical field of waste gas treatment, and system is utilized in particular to a kind of desulfurization slurry Recovery Purifying.
Background technology
At present, in conventional smoke-gas wet desulfurization system, the gypsum slurries in desulfuration absorbing tower stock tank are by gypsum slurries pumping
Go out and deliver to hydrocyclone, hydrocyclone is separated to gypsum slurries, and the relatively low overflowing liquid of concentration is recycled in stock tank, dense
Spend that larger bottom liquid further carries out being separated into the very low filtrate of solid content into vacuum belt dewaterer and moisture content is relatively low
Gypsum, wherein filtrate is recycled in stock tank, and gypsum is sent into gypsum treatment system.Desulfurized limestone slurries pulping system uses work
Skill water is new water, and the flushing water of the demister in desulfuration absorbing tower is also new water using industry water.So result in new water moisturizing
Amount is big, causes new water waste, particularly when desulfuration absorbing tower inlet flue gas temperature is relatively low, and shows emitting white cigarette to reduce chimney
As the purpose of and the flue gas in desulfuration absorbing tower or outlet cool down when, by flowing out the moisture taken out of of flue gas of chimney
Reduce, if being continuing with a large amount of new water, the difficulty of desulphurization system water balance can be increased, or even cause a large amount of desulfurization wastewaters external
Discharge.
The content of the invention
The purpose of embodiment of the present invention is that providing a kind of desulfurization slurry Recovery Purifying utilizes system, and its is simple in construction,
It is easy to use, it can preferably improve above mentioned problem.
What embodiments of the present invention were realized in：
Embodiments of the present invention provide a kind of desulfurization slurry Recovery Purifying and utilize system, including desulfuration absorbing tower, slurry
Liquid drawing pump and slurries separator；The side wall of the desulfuration absorbing tower is provided with gas approach, the top of the desulfuration absorbing tower
Provided with exhanst gas outlet, the inner bottom surface of the desulfuration absorbing tower is provided with slurry pool, and the upper end level height position of the slurry pool is low
In the level height position of the gas approach, the inside of the desulfuration absorbing tower is provided with slurries spray equipment, the slurries spray
For shower device between the gas approach and the exhanst gas outlet, the slurries spray equipment passes through pipeline with the slurry pool
Connect and pipeline is provided with slurry circulating pump；Demister is provided between the slurries spray equipment and the exhanst gas outlet, it is described
The above and or below of demister is provided with the first mist eliminator flushing device；The slurry pool fills with first mist eliminator flushing
The slurries drawing pump is provided with by pipeline communication and pipeline between putting, the slurries separator is arranged at the slurries and taken out
Go out the liquid feeding end or outlet end of pump.
Alternatively, the slurries separator is filter, cyclone separator, clarifier or vacuum belt dehydration
Any one in machine, or the slurries separator use filter, cyclone separator, clarifier and vacuum skin
It is in series with least any two in dewaterer.
Alternatively, the slurries separator is arranged at the outlet end of the slurries drawing pump, the slurries separator
Liquid outlet and the first mist eliminator flushing device between pipeline be provided with filtrate water box, the filtrate water box and described the
Pipeline between one mist eliminator flushing device is provided with flush water pump.
Alternatively, on the pipeline between the filtrate water box and the flush water pump or the flush water pump and described first
Pipeline between mist eliminator flushing device is provided with fine filtering device.
Alternatively, the fine filtering device is in filter, cyclone separator, clarifier or vacuum belt dewaterer
Any one, or the fine filtering device uses filter, cyclone separator, clarifier and vacuum belt dewaterer
In at least any two it is in series.
Alternatively, the fine filtering device is arranged on the pipeline between the filtrate water box and flush water pump, the refined filtration
Pipeline between device and the flush water pump is provided with clear water tank, the pipe between the filtrate water box and the fine filtering device
Road is provided with pressure pump.
Alternatively, the slurries separator also has dope outlet, the dope outlet of the slurries separator and institute
State slurry pool and pass through pipeline communication.
Alternatively, the desulfurization slurry Recovery Purifying also includes vacuum belt dewaterer, the slurries separation using system
Pipeline between the dope outlet of device and the slurry pool is provided with triple valve, and the triple valve has first interface, second
Interface and the 3rd interface, the first interface pass through pipeline communication, the second interface and the slurries point with the slurry pool
Dope outlet from device passes through pipeline communication, and the 3rd interface passes through pipeline communication with the vacuum belt dewaterer.
Alternatively, the desulfurization slurry Recovery Purifying also includes the second mist eliminator flushing device using system, and described second
Mist eliminator flushing device is arranged above the first mist eliminator flushing device, and the second mist eliminator flushing device passes through pipeline
Connected with cleaning water source.
Embodiments of the present invention have the advantages that：
The desulfurization slurry Recovery Purifying that embodiment of the present invention provides utilizes system, and its is easy to use, can improve desulfurization
System Sewage treatment utilization rate, reduce new water magnitude of recruitment, particularly when desulfuration absorbing tower inlet flue gas temperature is relatively low, and in order to
Reduce chimney the purpose of emitting white cigarette phenomenon and the flue gas in desulfuration absorbing tower or outlet when cooling down, can be de- by improving
The recycling of sulphur waste water, new water supplement is reduced, to realize desulphurization system water balance, desulfurization wastewater is reduced or avoided and externally arranges
Put.Be advantageous to the control of concentration of slurry in desulfurization slurry pond simultaneously, improve desulfuration efficiency and gypsum qualitt.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of embodiment of the present invention
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present invention, therefore should not be seen
Work is the restriction to scope, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other related accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is that the desulfurization slurry Recovery Purifying of embodiment of the present invention one utilizes the structural representation of system；
Fig. 2 is that the desulfurization slurry Recovery Purifying of embodiment of the present invention two utilizes the structural representation of system；
Fig. 3 is that the desulfurization slurry Recovery Purifying of embodiment of the present invention three utilizes the structural representation of system；
Fig. 4 is that the desulfurization slurry Recovery Purifying of embodiment of the present invention four utilizes the structural representation of system；
Fig. 5 is that the desulfurization slurry Recovery Purifying of embodiment of the present invention five utilizes the structural representation of system；
Fig. 6 is that the desulfurization slurry Recovery Purifying of embodiment of the present invention six utilizes the structural representation of system；
Fig. 7 is that the desulfurization slurry Recovery Purifying of embodiment of the present invention seven utilizes the structural representation of system.
Icon：10- desulfuration absorbing towers；101- gas approach；102- exhanst gas outlets；103- slurry pools；104- slurries spray
Device；105- slurry circulating pumps；106- demisters；107- the first mist eliminator flushing devices；20- slurries separators；201- is starched
Liquid drawing pump；30- filtrate water boxs；301- flush water pumps；40- fine filtering devices；50- clear water tanks；501- pressure pumps；60- is true
Empty belt dewaterer；70- triple valves；701- first interfaces；702- second interfaces；The interfaces of 703- the 3rd；The demisters of 80- second rush
Cleaning device.
Embodiment
To make the purpose, technical scheme and advantage of embodiment of the present invention clearer, implement below in conjunction with the present invention
Accompanying drawing in mode, the technical scheme in embodiment of the present invention is clearly and completely described, it is clear that described reality
The mode of applying is a part of embodiment of the present invention, rather than whole embodiments.Generally it is described and illustrated herein in the accompanying drawings
The component of embodiment of the present invention can arrange and design with a variety of configurations.
Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement guarantor below
The scope of the present invention of shield, but it is merely representative of the selected embodiment of the present invention.Based on the embodiment in the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained under the premise of creative work is not made, belongs to the present invention
The scope of protection.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the present invention can
To be mutually combined.
In the description of the invention, it is necessary to explanation, term " on ", " level ", " interior ", the orientation of instruction such as " outer " or
Position relationship be based on orientation shown in the drawings or position relationship, or the invention product using when the orientation usually put or
Position relationship, or the orientation that usually understands of those skilled in the art or position relationship, or when the invention product uses
The orientation or position relationship usually put, it is for only for ease of description description of the invention and simplified, rather than instruction or hint institute
The device or element of finger must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this hair
Bright limitation.In addition, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that indicating or implying relatively heavy
The property wanted.
In the description of the invention, it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or one
Connect body；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirect by intermediary
It is connected, can is the connection of two element internals.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
Embodiment 1
With reference to shown in figure 1, a kind of desulfurization slurry Recovery Purifying that embodiment of the present invention one provides utilizes system, including de-
Sulphur absorption tower 10, slurries separator 20 and slurries drawing pump 201.
Desulfuration absorbing tower 10 is used to carry out desulfurization process to flue gas.The side wall of desulfuration absorbing tower 10 is provided with gas approach 101,
Pending flue gas can be passed through in desulfuration absorbing tower 10 from gas approach 101；The top of desulfuration absorbing tower 10 goes out provided with flue gas
Mouth 102, the flue gas after processing can be from 102 externally discharged environment of exhanst gas outlet.Certainly, pushed up close to desulfuration absorbing tower 10
Exhanst gas outlet 102 can also be set in the side wall in portion.
The inner bottom surface of desulfuration absorbing tower 10 is provided with slurry pool 103, and the upper end level height position of slurry pool 103 is less than flue gas
The level height position of import 101, slurry pool 103 are used to contain desulfurization slurry.
The inside of desulfuration absorbing tower 10 is additionally provided with slurries spray equipment 104, and slurries spray equipment 104 is arranged on gas approach
Between 101 and exhanst gas outlet 102, slurries spray equipment 104 is followed with slurry pool 103 by pipeline communication and pipeline provided with slurries
Desulfurization slurry in slurry pool 103 can be extracted out and be transported to slurries spray equipment 104 by ring pump 105, slurry circulating pump 105,
Then sprayed from slurries spray equipment 104, such flue gas is understood with taking off during flowing to exhanst gas outlet 102 from gas approach 101
Sulphur slurry liquid contacts, in the presence of desulfurization slurry, the sulfide in flue gas is removed.
Demister 106 is additionally provided between slurries spray equipment 104 and exhanst gas outlet 102, demister 106 is used to enter flue gas
Discharged again after row demisting.
The top of demister 106 is provided with the first mist eliminator flushing device 107, and the first mist eliminator flushing device 107 is used for pair
Demister 106 is rinsed, and to reduce dust stratification and fouling, ensures the normal operation of demister 106.In present embodiment, first
Mist eliminator flushing device 107 is between demister 106 and exhanst gas outlet 102.Certainly, the first mist eliminator flushing device 107
The lower section of demister 106 can be arranged on, or the first mist eliminator flushing device is respectively provided with above and below demister 106
107.It is, of course, also possible to set two layers or more than two layers of the demister 106, correspondingly the first mist eliminator flushing device
107 can be two layers or more and interspersed be arranged between demisters 106 at different levels and thereon or/and lower section.
Extracted out between the mist eliminator flushing device 107 of slurry pool 103 and first by pipeline communication and pipeline provided with slurries
Pump 201, slurries separator 20 are arranged on the outlet end of slurries drawing pump 201.The effect of slurries separator 20 is to pass through
Its entrance flows through slurries therein and carries out air-coal separating or particulate matter filtering and send out relatively low clear of particle content through its outlet
Liquid.Slurries in slurry pool 103 flow into slurries point under the driving of slurries drawing pump 201 by the entrance of slurries separator 20
From in device 20, the outlet of slurries separator 20, by pipeline communication, so, is passed through with the first mist eliminator flushing device 107
Clear liquid after slurries separator 20 separates can flow into the first mist eliminator flushing device by the outlet of slurries separator 20
In 107, so as to be rinsed to demister 106, to reduce dust stratification and fouling, ensure the normal operation of demister 106, it is certainly clear
Liquid can be used for other purposes, such as be used for desulfurization slurrying or other process waters, such as recirculated cooling water moisturizing；Slurries separation dress
Slurry pool 103 or other systems can be returned to by putting 20 and isolating the larger dope of particle content, such as vacuum belt dewaterer (figure
Not shown in).
Slurries separator 20 can also be arranged at the liquid feeding end of slurries drawing pump 201, in such cases, slurries separation dress
Put 20 entrance to be connected with slurry pool 103, the outlet of slurries separator 20 is connected with slurries drawing pump 201, slurries drawing pump
201 and first mist eliminator flushing device 107 pass through pipeline communication.
Slurries drawing pump 201 in the present embodiment needs larger pressure head to contribute, to ensure that the first mist eliminator flushing fills
Put 107 flushing water pressure.
As a result of the clear liquid after being separated to the slurries in slurry pool 103 as the first mist eliminator flushing device
107 flushing water, it can not have to or reduce flushing water of the new water as demister 106, desulphurization system Sewage treatment can be improved
Utilization rate, new water magnitude of recruitment is reduced, particularly when the inlet flue gas temperature of desulfuration absorbing tower 10 is relatively low, and emitted in order to reduce chimney
, can be by improving desulfurization wastewater when the purpose of white cigarette phenomenon and the flue gas in desulfuration absorbing tower 10 or outlet cool down
Recycle, reduce new water supplement, to realize desulphurization system water balance, desulfurization wastewater is reduced or avoided and externally discharges.Simultaneously
Be advantageous in slurry pool 103 concentration of slurry control, as the concentration of slurry in slurry pool 103 is relatively low be unfavorable for gypsum generation when,
The slurries in slurry pool 103 can be extracted out by slurries drawing pump 201, after slurries separator 20 is separated, containing particle
Thing is that the high dope of limestone concentration returns to slurry pool 103 to improve the concentration of slurry in slurry pool 103；When in slurry pool 103
Concentration of slurry it is higher need deviate from gypsum when, can by slurries drawing pump 201 extract out slurry pool 103 in slurries, through slurry
After liquid separating apparatus 20 is separated, dope flows into vacuum belt dewaterer (not shown) and is dehydrated, and clear liquid can lead to
Cross the first mist eliminator flushing device 107 and return to slurry pool 103, can also directly return to the (not shown) of slurry pool 103, with drop
Concentration of slurry in low slurry pool 103.
The slurries separator 20 can be filter, and slurries carry out air-coal separating or particulate matter mistake by screen pack
Filter, and send out the relatively low clear liquid containing particle concentration；The slurries separator 20 or eddy flow current divider, slurries pass through
Eddy flow centrifugal principle carries out air-coal separating, such as uses currently used slurries cyclone separator；The slurries separator 20
Can be that clarifier carries out air-coal separating, such as depositing reservoir by precipitating；The slurries separator 20 or vacuum belt take off
Water dispenser carries out air-coal separating, the product that such as current desulphurization system is commonly used.
Slurries separator 20 can also use filter, eddy flow current divider, clarifier or vacuum belt dehydration
Any two or more than two in series in machine.So separative efficiency is higher, and filtrate is less containing solids, and water quality is higher.
The preliminary air-coal separating of cyclone separator progress is first passed through as used, then is further separated by vacuum belt dewaterer, such as
Need further to be separated or be filtered using metallic filter, improve filtrate water quality, reduction contains solids concentration.
A type of two or more series connection can also be used, such as two or more filters are connected.
Embodiment 2
With reference to shown in figure 2, a kind of desulfurization slurry Recovery Purifying that embodiment of the present invention two provides utilizes system, is in reality
The desulfurization slurry Recovery Purifying of mode one is applied using the further improvement made on the basis of system, improvement is to add filter
Liquid water tank 30 and flush water pump 301.
Slurries drawing pump 201 is located between slurry pool 103 and slurries separator 20, and filtrate water box 30 is arranged on slurries point
From on the pipeline between the mist eliminator flushing device 107 of device 20 and first, the mist eliminator flushing device 107 of filtrate water box 30 and first
Between pipeline be provided with flush water pump 301.Such benefit is：System buffer ability can be increased, improve institute's demister 106
Reliability and stability；It is simultaneously intermitten service in view of the first mist eliminator flushing device 107, but flow is larger, this implementation
Mode can be by increasing the run time of slurries drawing pump 201 and slurries separator 20 to increase slurries fractional dose, full
Its capacity can be suitably reduced on the premise of sufficient treating capacity requirement to contribute to reduce cost.In such cases, the first demister rushes
The washing pressure power of cleaning device 107 is mainly undertaken by flush water pump 301, and slurries drawing pump 201 no longer influences the punching of the first demister
The work of cleaning device 107.
Certainly, filtrate water box 30 can also be filtrate pond etc..
Embodiment 3
With reference to shown in figure 3, a kind of desulfurization slurry Recovery Purifying that embodiment of the present invention three provides utilizes system, is in reality
The desulfurization slurry Recovery Purifying for applying mode two is to add essence using the further improvement made on the basis of system, improvement
Filter device 40.
Fine filtering device 40 is arranged on the pipeline between filtrate water box 30 and flush water pump 301, fine filtering device 40 be used for pair
The liquid come from the conveying of filtrate water box 30 is further filtered so that flows to the water quality of the first mist eliminator flushing device 107
More preferably, developing result is improved.Fine filtering device 40 can also be arranged on the outlet end of flush water pump 301.
Fine filtering device 40 can be used in filter, cyclone separator, clarifier or vacuum belt dewaterer
Any one；Fine filtering device 40 can also be used in filter, cyclone separator, clarifier and vacuum belt dewaterer
At least any two it is in series.Can certainly be that same type of two or more are connected, such as two or two
Filter series connection above.
Embodiment 4
With reference to shown in figure 4, a kind of desulfurization slurry Recovery Purifying that embodiment of the present invention four provides utilizes system, is in reality
The desulfurization slurry Recovery Purifying of mode three is applied using the further improvement made on the basis of system, improvement is to add only
Water tank 50 and pressure pump 501.
For fine filtering device 40 between filtrate water box 30 and flush water pump 301, clear water tank 50 is arranged on fine filtering device 40
On pipeline between flush water pump 301, pressure pump is provided with the pipeline between filtrate water box 30 and fine filtering device 40
501.Clear water tank 50 is used to contain the clear liquid after fine filtering device 40 filters, and the liquid to being flowed out from fine filtering device 40 plays
The effect of buffering.Such benefit is：The reliability and stably that system buffer ability further improves demister 106 can be increased
Property；It is simultaneously intermitten service in view of the first mist eliminator flushing device 107, but flow is larger, and present embodiment can pass through increasing
Add the run time of pressure pump 501 and fine filtering device 40 to increase slurries fractional dose, on the premise for the treatment of capacity requirement is met
Its capacity can be suitably reduced to contribute to reduce cost.
Embodiment 5
With reference to shown in figure 5, a kind of desulfurization slurry Recovery Purifying that embodiment of the present invention five provides utilizes system, is in reality
The further improvement made on the basis of mode two, embodiment three or embodiment four is applied, improvement is that slurries separate
The dope outlet of device 20 is connected with slurry pool 103.
The dope outlet of slurries separator 20 is with slurry pool 103 by pipeline communication, and so, slurries separator 20 divides
Separating out the higher bottom liquid of the concentration come can just be back in slurry pool 103, so as to improve the concentration of slurries in slurry pool 103,
In order to improve the generation quality of desulfuration efficiency and gypsum.
It should be noted that the slurries separator 20 in the present invention has three interfaces：One is entrance, i.e., pending
Slurries flow into the interface of slurries separator 20；One is outlet, i.e. the submitting interface of the clear liquid after separation or filtration treatment；
One is that dope exports, i.e., the outlet of the impurity such as particulate matter isolated through slurries separator 20.
Embodiment 6
With reference to shown in figure 6, a kind of desulfurization slurry Recovery Purifying that embodiment of the present invention six provides utilizes system, is in reality
The further improvement made on the basis of mode five is applied, improvement is to add vacuum belt dewaterer 60 and triple valve 70.
Triple valve 70 has first interface 701, the interface 703 of second interface 702 and the 3rd, first interface 701 and slurry pool
103 pass through pipeline communication, the 3rd interface 703 by pipeline communication, second interface 702 and the dope outlet of slurries separator 20
Pass through pipeline communication with vacuum belt dewaterer 60.
The desulfurization slurry Recovery Purifying that present embodiment provides is as follows using the operation principle of system：
Slurries in slurry pool 103 extracted out by slurries drawing pump 201 and be delivered in slurries separator 20 carry out it is dense
Light separation, the outlet through slurries separator 20 containing the small clear liquid of particle concentration are flowed into filtrate water box 30 and are used as demister
106 flushing waters, outflow is exported from the dope of slurries separator 20 containing the big dope of particle concentration.In present embodiment, root
According to need control triple valve 70 break-make, for example, when the concentration of slurry in slurry pool 103 is relatively low be unfavorable for gypsum generation or be not required to
When going out gypsum, the first interface 701 and second interface 702 of triple valve 70 are opened, closes the 3rd interface 703, slurries separation dress
The big dope containing particle concentration in 20 is put to be back in slurry pool 103 to improve the concentration of slurry in slurry pool 103；Work as slurries
When concentration of slurry in pond 103 is higher to need gypsum, first interface 701 is closed, opens the interface of second interface 702 and the 3rd
703, the big dope containing particle concentration is flowed into vacuum belt dewaterer 60 and is dehydrated in slurries separator 20, vacuum skin
The flushing water of demister 106 can be used as with the filtrate after the processing of dewaterer 60, can also be fed directly in slurry pool 103, with
Reduce the concentration of slurry in slurry pool 103；Operation convenience is so not only improved, is also convenient for concentration of slurry control, at the same it is also simultaneous
Care for the function such as gypsum abjection and the extraction flushing water of demister 106.
Embodiment 7
With reference to shown in figure 7, a kind of desulfurization slurry Recovery Purifying that embodiment of the present invention seven provides utilizes system, is in reality
Apply and make on the basis of mode one, embodiment two, embodiment three, embodiment four, embodiment five or embodiment six
Further improvement, improvement is to add the second mist eliminator flushing device 80.
Second mist eliminator flushing device 80 is arranged on the top of the first mist eliminator flushing device 107, the punching of the second demister
Cleaning device 80 connects with cleaning water source, so can preferably improve the developing result to demister 106.
It should be noted that the water tank of the present invention can also use pond or other tanks etc..
The preferred embodiment of the present invention is the foregoing is only, is not intended to limit the invention, for this area
For technical staff, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made is any
Modification, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (9)
1. a kind of desulfurization slurry Recovery Purifying utilizes system, it is characterised in that including desulfuration absorbing tower, slurries drawing pump and slurries
Separator；The side wall of the desulfuration absorbing tower is provided with gas approach, and the top of the desulfuration absorbing tower is provided with exhanst gas outlet, institute
The inner bottom surface for stating desulfuration absorbing tower is provided with slurry pool, and the upper end level height position of the slurry pool is less than the gas approach
Level height position, the inside of the desulfuration absorbing tower are provided with slurries spray equipment, and the slurries spray equipment is located at the cigarette
Between gas import and the exhanst gas outlet, the slurries spray equipment is provided with the slurry pool by pipeline communication and pipeline
Slurry circulating pump；Be provided with demister between the slurries spray equipment and the exhanst gas outlet, the top of the demister and/or
Lower section is provided with the first mist eliminator flushing device；Pass through pipeline communication between the slurry pool and the first mist eliminator flushing device
And pipeline is provided with the slurries drawing pump, the slurries separator is arranged at the liquid feeding end of the slurries drawing pump or goes out liquid
End.
2. desulfurization slurry Recovery Purifying according to claim 1 utilizes system, it is characterised in that the slurries separator
Separated for any one in filter, cyclone separator, clarifier or vacuum belt dewaterer, or the slurries
Device uses at least any two series connection structure in filter, cyclone separator, clarifier and vacuum belt dewaterer
Into.
3. desulfurization slurry Recovery Purifying according to claim 1 utilizes system, it is characterised in that the slurries separator
It is arranged at the outlet end of the slurries drawing pump, the liquid outlet of the slurries separator and the first mist eliminator flushing device
Between pipeline be provided with filtrate water box, the pipeline between the filtrate water box and the first mist eliminator flushing device is provided with
Flush water pump.
4. desulfurization slurry Recovery Purifying according to claim 3 utilizes system, it is characterised in that the filtrate water box and institute
The pipeline on the pipeline between flush water pump or between the flush water pump and the first mist eliminator flushing device is stated to be provided with
Fine filtering device.
5. desulfurization slurry Recovery Purifying according to claim 4 utilizes system, it is characterised in that the fine filtering device is filter
Any one in web filter, cyclone separator, clarifier or vacuum belt dewaterer, or the fine filtering device use
At least any two in filter, cyclone separator, clarifier and vacuum belt dewaterer is in series.
6. desulfurization slurry Recovery Purifying according to claim 4 utilizes system, it is characterised in that the fine filtering device is set
On pipeline between the filtrate water box and flush water pump, set on the pipeline between the fine filtering device and the flush water pump
There is clear water tank, the pipeline between the filtrate water box and the fine filtering device is provided with pressure pump.
7. desulfurization slurry Recovery Purifying according to claim 1 utilizes system, it is characterised in that the slurries separator
Also there is dope outlet, the dope outlet of the slurries separator passes through pipeline communication with the slurry pool.
8. desulfurization slurry Recovery Purifying according to claim 7 utilizes system, it is characterised in that the desulfurization slurry purification
Recycling system also includes vacuum belt dewaterer, between the dope outlet of the slurries separator and the slurry pool
Pipeline is provided with triple valve, and the triple valve has first interface, second interface and the 3rd interface, the first interface with it is described
Slurry pool passes through pipeline communication by pipeline communication, the second interface and the dope outlet of the slurries separator, described
3rd interface passes through pipeline communication with the vacuum belt dewaterer.
9. the desulfurization slurry Recovery Purifying according to claim 1-8 any one utilizes system, it is characterised in that described de-
Sulphur slurries Recovery Purifying also includes the second mist eliminator flushing device using system, and the second mist eliminator flushing device is arranged at institute
State above the first mist eliminator flushing device, the second mist eliminator flushing device is connected by pipeline with cleaning water source.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711286178.7A CN107754592A (en) | 2017-12-07 | 2017-12-07 | A kind of desulfurization slurry Recovery Purifying utilizes system |
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|---|---|---|---|
| CN201711286178.7A CN107754592A (en) | 2017-12-07 | 2017-12-07 | A kind of desulfurization slurry Recovery Purifying utilizes system |
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| CN108722102A (en) * | 2018-07-27 | 2018-11-02 | 双良节能系统股份有限公司 | A kind of desulfurizer and water balance control method with flue gas condensing function in tower |
| CN109012097A (en) * | 2018-09-30 | 2018-12-18 | 马鞍山沐及信息科技有限公司 | Industrial flue gas desulfurization deacidification recovery unit |
| CN109331639A (en) * | 2018-11-30 | 2019-02-15 | 北京兴晟科技有限公司 | A kind of flue gas desulfurization device with slurries filtering function |
| CN109331638A (en) * | 2018-11-30 | 2019-02-15 | 北京兴晟科技有限公司 | Slurry filter and flue gas desulfurization device including the slurry filter |
| CN110339683A (en) * | 2019-07-29 | 2019-10-18 | 南京龙源环保有限公司 | A kind of ammonia method desulfurizing system removing chlorion |
| CN113893659A (en) * | 2021-11-13 | 2022-01-07 | 安徽恒夏环保科技有限公司 | High-sulfur flue gas treatment system and treatment method |
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| CN113893659A (en) * | 2021-11-13 | 2022-01-07 | 安徽恒夏环保科技有限公司 | High-sulfur flue gas treatment system and treatment method |
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