CN106268126A - Closed cycle desulphurization denitration and the device of recovery sulfur - Google Patents
Closed cycle desulphurization denitration and the device of recovery sulfur Download PDFInfo
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- CN106268126A CN106268126A CN201610650879.3A CN201610650879A CN106268126A CN 106268126 A CN106268126 A CN 106268126A CN 201610650879 A CN201610650879 A CN 201610650879A CN 106268126 A CN106268126 A CN 106268126A
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- China
- Prior art keywords
- closed cycle
- pipeline
- desulphurization denitration
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- sulfur
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
-
- 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
- B01D53/14—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 by absorption
-
- 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
- B01D53/14—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 by absorption
- B01D53/1456—Removing acid components
- B01D53/1481—Removing sulfur dioxide or sulfur trioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
-
- 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 present invention provides a kind of closed cycle desulphurization denitration and reclaims the device of sulfur, and its capital equipment has water tank, cleaner unit, absorption equipment, hydrops plate, circulating sedimentation tank, dividing plate, filter, fine filter, fluid reservoir, resolver, reducing/regenerating device, allotter, spiral board and dehydrator；This device includes two parts: a) structure of closed cycle desulphurization denitration part can remove SO2, NOx in coal-fired flue-gas；B) composition reclaiming sulfur part can effectively solve to overcome the byproduct for treatment difficulty of prior art, have secondary pollution, the problems such as operating cost is high, product is single.Why this device can be to the parsing reducing/regenerating of desulfurizing byproduct, its objective is: the treatment of wastes with processes of wastes against one another is achieved many things at one stroke, the Sulphur ressource that will waste in coal-fired flue-gas, circulation and stress is carried out with minimum cost, improve the comprehensive added value of desulfuration byproduct and reduce its running cost, make dust-removal and desulfurizing, denitration, circulation and stress Sulphur ressource, it is achieved long-term Effec-tive Function.
Description
Technical field:
The present invention relates to technology and the field of environment protection of desulphurization and denitration, dedusting and resource reclaim, a kind of closed circuit
Circulation desulfurization denitration and the device of recovery sulfur.
Background technology:
China is a country with coal as main energy sources, and the electric power development general layout based on fire coal in a short time will not
Change；Coal is a kind of low-grade flammable organic fossil energy, its petrofacies and chemical composition often have obvious difference and
Inhomogeneity, wherein sulfur component content is also from 0.1～10%, and excursion is relatively big, and the task of FGD will be abnormal arduous and heavy
Weight；At present, when being particularly main with desulfurization technology, techniques such as lime/lime stone method, Dual alkali, huge investment certainly will be brought
Bear with running, and have the disadvantage that
(1) heavily de-light use: will SO in flue gas2Taking off, comprehensive utilization aspect is undesirable, and side-product is of poor quality, unstable
Fixed, value is low；Secondary pollution is serious；
(2)SO2、NOXRemoval efficiency is low: SO in generally below 95%, and discharged gas fume2、NOXCurrent country can not be met
The environmental emission standard of regulation, more cannot meet sulphur coal desulfurization and use；
(3) operating cost is high: floor space is big, and run stability is poor；Waste treatment project is obtaining the same of environmental benefit
Time, need substantial amounts of circulation capital to put into；
(4) continuous fluctuation of service, it is impossible to ensureing low cost, long-term on-line monitoring runs, and maintenance capacity is big；
(5) resource serious waste, does not meets national energy-saving method and recycling economy development.
Although, this technology serves certain effect to the sulfur dioxide pollution alleviated in flue gas, but, often process one
The desulfurated plaster of about 2.7 tons is produced, it is contemplated that by 2010, the desulfurated plaster that China stores up will be more than 100,000,000 tons during ton sulfur dioxide；
And, desulfurated plaster quality is loose, it is impossible to compared with Ore cream, causes desulfurated plaster to be difficult by, so causing desulfurated plaster
It is abandoned process, occupies the soil of up to a million mu；Simultaneously as abandoned desulfurated plaster distributes residual poison for a long time, through too
Sun solar evaporation goes out pungent tart flavour；Acidic materials after volatilization have increased the weight of again the harm of acid rain；" the desulfurated plaster that rainy day piles up
Mountain " the most all can collapse, impact road and cottage, and penetrate into soil, farmland, impurely lower and surface water, hence into
Our food chain, if not taking active and effective measure, human body is caused greatly wound by induction by the harmful substance of its release
The new state of an illness of evil.
As can be seen here, existing desulphurization and denitration technology certainly will cause a large amount of waste residue, waste gas, waste water, seriously brings new life
State is destroyed；Developing country such to China and the most most of country all also exist " can not building " and also " run not
Rise " serious hindrance.
Currently, along with flue gas desulphurization project implementation and the progressively operation of desulfurization equipment, desulfurizing byproduct more comes
The most, it is comprehensively utilized, economizes on resources, prevent secondary pollution from having become the important topic being currently badly in need of researching and solving；
National Development and Reform Committee's " about some suggestions of promotion of FGD industrialization in thermal power plant " explicitly points out and " carries out cigarette further
Desulfurization side-product comprehensively utilizes, and saves the energy, reduces and pollute, promotes recycling economy development, organize relevant scientific research institutions as early as possible
In department, desulfurizing byproduct being carried out in-depth study, implementing desulfurizing byproduct must comprehensively utilize "；So, in order to subtract
Of low pollution, reduces energy consumption, economizes on resources, develop a circular economy the most imperative.
SO2Environment scholar's eye is polluter, be " devil " be " enemy "；But, in changing scholar's eye, SO2It is can be again
The resource utilized, is that " comrade-in-arms " even can also become " heroic "；Realize this target it is necessary to play chemical engineering science
Effect, research, application investment and operating cost is low, by-product value is high, advanced technology, performance is stable, without secondary
The new technique of pollution, new technology.
Summary of the invention:
It is an object of the invention to for above deficiency, and develop a kind of closed cycle desulphurization denitration and reclaim the dress of sulfur
Putting, it is SO in a kind of closed cycle removing coal-fired flue-gas2、NOxAnd the device of circulation and stress Sulphur ressource, can effectively solve to overcome
The byproduct for treatment of prior art is difficult, have secondary pollution, the problems such as operating cost is high, product is single.This device why can
Parsing reducing/regenerating to desulfurizing byproduct, its object is to: the treatment of wastes with processes of wastes against one another is achieved many things at one stroke, and will waste in coal-fired flue-gas
Sulphur ressource, carry out circulation and stress with minimum cost, improve the comprehensive added value of desulfuration byproduct and reduce its running cost, making to remove
Dirt desulphurization and denitration, circulation and stress Sulphur ressource, it is achieved long-term Effec-tive Function, improve Business Economic Benefit and social benefit.
The present invention is achieved in that the device of closed cycle desulphurization denitration and recovery sulfur includes, closed cycle desulfurization takes off
Nitre part and reclaim sulfur part, wherein, a), the composition of closed cycle desulphurization denitration part be that water tank 4 is by high-pressure pump 5, water pipe 3
Connecting with the chimney intake 1 of cleaner unit 32, the lower section of cleaner unit 32 is connected with pressure screw ash ejector 7 equipped with ash bucket 6, ash bucket 6, dedusting
The outlet of device 32 is connected by the import of smoke pipe 9 and absorption equipment 31, and the upper outlet of absorption equipment 31 passes through smoke pipe 18, air-introduced machine
19 and chimney 20 connect, the lower outlet of absorption equipment 31 is connected by pipeline and circulating sedimentation tank 12, going out of circulating sedimentation tank 12
Mouth is connected by pipeline, the import of water pump 15 and filter 16, and an outlet of filter 16 is connected by pipeline and fine filter 14
Connecing, the outlet of fine filter 14 is connected by pipeline and fluid reservoir 11, and fluid reservoir 11 passes through pipeline through high-pressure pump and one end of threeway
Connecting, the inside pipe fitting of another termination absorption equipment 31 of threeway, the 3rd of threeway terminates into the outlet of smoke pipe 9 and connects absorption and set
The porch of standby 31；B), reclaim sulfur part composition be: another outlet of filter 16 is connected by pipeline and resolver 23,
Resolver 23 is connected by pipeline and reducing/regenerating device 21, and reducing/regenerating device 21 connects absorption equipment 31 by pipeline.
The present invention can be achieved in that the bottom of absorption equipment 31 is provided with hydrops plate 10.
The present invention it may also is that realize: be sequentially arranged with allotter 27, jet pipe 26, atomizer in absorption equipment 31
28 and dehydrator 30.
The present invention it may also is that realize: be connected to atomizer 2 on water pipe 3.
The present invention it may also is that realize: equipped with spiral board 29 between two-layer nozzle 28.
The present invention it may also is that realize: be provided with dividing plate 13 in circulating sedimentation tank 12.
The invention has the beneficial effects as follows:
1, the present invention collects dust-removal and desulfurizing, denitration, circulation and stress Sulphur ressource with integrated, and extensibility is strong, meets country more
Come the most environmental requirements and discharge standard；
2, this device absorption efficiency is high, and heavily removing, huge profit are used；Make SO2Removal efficiency is more than more than 99%, side-product quality
Stable, circulation and stress by-product is wide in variety, purposes is wide, is worth high benefit good, can be substantially reduced operating cost；
3, the present invention is taken up an area few, and water consumption is little, energy consumption is low, and dedusting, the efficiency height of desulphurization and denitration, non-secondary pollution, is existing
There are desulfurization and dedusting, resource reclaim technology and field of environment protection one to innovate greatly, there is obvious economic benefit and social benefit；
4, the present invention can self-sufficient closed cycle, economize on resources, energy-saving and cost-reducing, i.e. non-wastewater discharge, again without secondary dirt
Dye, to meet resource reclaim and environmental improvement requirement.
Accompanying drawing illustrates:
Fig. 1 is the shape and structure schematic diagram of the present invention.
Detailed description of the invention:
The present invention is described in further detail below in conjunction with the accompanying drawings.
As it is shown in figure 1, the dust removal part of the device of closed cycle desulphurization denitration and recovery sulfur: closed cycle desulphurization denitration portion
Dividing and reclaim sulfur part, at boiler flue gas outlet, rear portion meets going out of boiler equipped with cleaner unit 32, the chimney intake 1 of cleaner unit 32
Mouth, water tank 4 is connected by the chimney intake 1 of high-pressure pump 5, water pipe 3 and cleaner unit 32, and water tank 4 is supplied through high-pressure pump 5, water pipe 3
Clean water, by valve regulated flow, water pipe 3 is connected to atomizer 2, to implement strong atomizing, increase gas, solid, liquid three
Mutually abundant affine contact, frequent impact, moment is by the dust cohesion collection in right flue-gas and cooling；The lower section dress of cleaner unit 32
Ash bucket 6, ash bucket 6 is had to be connected with pressure screw ash ejector 7, then doing required for the outlet recovery of ash bucket 6 and pressure screw ash ejector 7
(or half-dried or wet) dust resource, instead of existing highly energy-consuming electrostatic (or cloth bag) dedusting completely.
As it is shown in figure 1, the desulphurization denitration part of the device of closed cycle desulphurization denitration and recovery sulfur: it is will to change through dedusting
Coal-fired flue-gas after thermal purification, in smoke pipe 9 introduces the absorption equipment 31 of energy simultaneous SO_2 and NO removal, smoke pipe 9 is provided with atomization spray
Mouth 8, is sequentially arranged with allotter 27, jet pipe 26, atomizer 28 and dehydrator 30 in absorption equipment 31.The outlet of cleaner unit 32 is led to
The import crossing smoke pipe 9 and absorption equipment 31 connects, and the upper outlet of absorption equipment 31 is connected by smoke pipe 18, air-introduced machine 19 and chimney 20
Connect, the mixing water as Main Ingredients and Appearance with organic acid (or acylate) and inorganic salt (or alkali) that fluid reservoir 11 is supplied through high-pressure pump
Solution, as desulphurization and denitration liquid (or agent), by pipeline 25, pipeline 25 is connected to two-layer atomizer 28, two-layer atomizer
Equipped with spiral board 29 to increase gas, the abundant affine contact of solid, liquid three-phase, frequent impact between 28, make its flue gas the allocated simultaneously
Device 27, distributes upwards at its absorption equipment 31 inner homogeneous, is being atomized through ground floor atomizer 28, downwards with by high-pressure hydraulic pump
The desulphurization denitration absorbing liquid of supply, through the ground floor atomizer 28 that pipeline 25 connects, contacts downwards absorption, washes with flue gas adverse current
Washing purification, jet pipe 26 counter current contacting with reducing/regenerating device 21 absorbs the most again, washing is reduced, and then makes the flue gas warp after purification
Cross spiral board 29 washing, purifying upwards, then be atomized through second layer atomizer 28, contact downwards absorption, washing with flue gas adverse current only
Change, the sulfur in removing flue gas and nitre and dust, with after after dehydrator 30 is dehydrated, introduce chimney by flue 18 through air-introduced machine 19
20 outer rows.
As it is shown in figure 1, the recovery sulfur part of the device of closed cycle desulphurization denitration and recovery sulfur: absorption equipment goes out for 31 times
Mouth is connected by pipeline and circulating sedimentation tank 12, is provided with dividing plate 13 in circulating sedimentation tank 12, and the bottom of absorption equipment 31 is arranged
Having hydrops plate 10, the outlet of circulating sedimentation tank 12 is connected by the import of pipeline and filter 16, an outlet of filter 16
Being connected by pipeline and fine filter 14, the outlet of fine filter 14 is connected by pipeline and fluid reservoir 11, and fluid reservoir 11 passes through pipeline
Through high-pressure pump and threeway one end connect, threeway another termination absorption equipment 31 inside pipe fitting, the 3rd of threeway terminate into
The outlet of smoke pipe 9 and the porch of absorption equipment 31, another outlet of filter 16 is connected by pipeline and resolver 23, resolves
Device 23 is connected by pipeline and reducing/regenerating device 21, and reducing/regenerating device 21 connects the jet pipe 26 of absorption equipment 31 by pipeline.Washing
Liquid flows into circulating sedimentation tank 12 through hydrops plate 10, after dividing plate 13 precipitation separation, will generate the chemical combination of sulfur in saturated cleaning mixture
Thing as resource by water pump 15, through pipeline, valve, filter 16, filter 16 by pipeline, valve, alternately open and close, with
The reducing/regenerating raw material come in reducing/regenerating device 21 reaction cycle in resolver 23 is run, and on the one hand makes Sulphur ressource from filtration
At outer row's solid-liquid mouth 24 of device 16, separate and resolve conversion or the elemental sulfur of reducing/regenerating one-tenth, or from outer row's solid-liquid of filter 16
At mouth 17, isolate other product containing Sulphur ressource, as regenerative raw materials generation storage, it is possible to join reduction by reduction nozzle 22
In regenerator 21, and the raw material in reducing/regenerating device 21, generate the generation storage of reducing/regenerating raw material through microwave or pyroreaction, and will be with
Time association sulphurizing salt, hydrogen, carbon monoxide, (CH4、CO、H2) gaseous mixture, hydrogen sulfide, Carbon bisulfide, carbonyl sulfide (carbonyl
Sulfur) raw material, by pipeline, be respectively connected to resolver 23, in absorption equipment 31 through jet pipe 26 contact with flue gas adverse current downwards absorption,
Washing reduction, on the other hand makes the cleaning mixture after separation, through pipeline, valve, after filter 16, fine filter 14 filter, enters storage
Storing in flow container 11, for cyclic absorption, resolve, the closed cycle of regenerated liquid, go round and begin again, circulation and stress Sulphur ressource uses.
Claims (6)
1. the device of a closed cycle desulphurization denitration and recovery sulfur includes, closed cycle desulphurization denitration part and recovery sulfur portion
Point, it is characterised in that: a), the composition of closed cycle desulphurization denitration part is water tank (4) by high-pressure pump (5), water pipe (3) and removes
The chimney intake (1) of dirt device (32) connects, and the lower section of cleaner unit (32) is equipped with ash bucket (6), ash bucket (6) and pressure screw ash ejector (7)
Connecting, the outlet of cleaner unit (32) is connected by the import of smoke pipe (9) and absorption equipment (31), the upper outlet of absorption equipment (31)
Being connected by smoke pipe (18), air-introduced machine (19) and chimney (20), the lower outlet of absorption equipment (31) is by pipeline and circulation precipitation
Pond (12) connects, and the outlet of circulating sedimentation tank (12) is connected by pipeline, the import of water pump (15) and filter (16), filter
(16) a outlet is connected by pipeline and fine filter (14), and the outlet of fine filter (14) is connected by pipeline and fluid reservoir (11)
Connecing, fluid reservoir (11) is connected through one end of high-pressure pump and threeway by pipeline, the other end of threeway and connect absorption equipment (31)
Internal pipe fitting, the 3rd of threeway terminates into the outlet of smoke pipe (9) and connects the porch of absorption equipment (31)；B), sulfur part is reclaimed
Composition be: another outlet of filter (16) is connected by pipeline and resolver (23), and resolver (23) is by pipeline and also
Former regenerator (21) connects, and reducing/regenerating device (21) connects absorption equipment (31) by pipeline.
Closed cycle desulphurization denitration the most according to claim 1 and the device of recovery sulfur, it is characterised in that: absorption equipment
(31) bottom is provided with hydrops plate (10).
Closed cycle desulphurization denitration the most according to claim 1 and the device of recovery sulfur, it is characterised in that: absorption equipment
(31) allotter (27), jet pipe (26), atomizer (28) and dehydrator (30) it are sequentially arranged with in.
Closed cycle desulphurization denitration the most according to claim 1 and the device of recovery sulfur, it is characterised in that: on water pipe (3)
It is connected to atomizer (2).
Closed cycle desulphurization denitration the most according to claim 1 and the device of recovery sulfur, it is characterised in that: two-layer nozzle
(28) equipped with spiral board (29) between.
Closed cycle desulphurization denitration the most according to claim 1 and the device of recovery sulfur, it is characterised in that: circulating sedimentation tank
(12) dividing plate (13) it is provided with in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610650879.3A CN106268126A (en) | 2016-08-09 | 2016-08-09 | Closed cycle desulphurization denitration and the device of recovery sulfur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610650879.3A CN106268126A (en) | 2016-08-09 | 2016-08-09 | Closed cycle desulphurization denitration and the device of recovery sulfur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106268126A true CN106268126A (en) | 2017-01-04 |
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ID=57667701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610650879.3A Pending CN106268126A (en) | 2016-08-09 | 2016-08-09 | Closed cycle desulphurization denitration and the device of recovery sulfur |
Country Status (1)
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| CN (1) | CN106268126A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109059011A (en) * | 2018-07-25 | 2018-12-21 | 南通春光自控设备工程有限公司 | A kind of desulfuring and denitrifying apparatus |
-
2016
- 2016-08-09 CN CN201610650879.3A patent/CN106268126A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109059011A (en) * | 2018-07-25 | 2018-12-21 | 南通春光自控设备工程有限公司 | A kind of desulfuring and denitrifying apparatus |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170104 |