CN201648011U - Brine and boiler waste gas purifying device in vacuum salt production - Google Patents
Brine and boiler waste gas purifying device in vacuum salt production Download PDFInfo
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- CN201648011U CN201648011U CN2009203180299U CN200920318029U CN201648011U CN 201648011 U CN201648011 U CN 201648011U CN 2009203180299 U CN2009203180299 U CN 2009203180299U CN 200920318029 U CN200920318029 U CN 200920318029U CN 201648011 U CN201648011 U CN 201648011U
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- brine
- reactor
- waste gas
- bittern
- water
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The utility model discloses a brine and boiler waste gas purifying device in vacuum salt production, which comprises a raw brine barrel, a primary brine reactor, a secondary brine reactor, a refine brine barrel, a salt producing system and a mother liquor barrel that are sequentially connected through a pipeline. The brine and boiler waste gas purifying device also comprises a scrubber tower, a compressor and a gas and water separator which are sequentially connected through a pipeline, wherein the scrubber tower is connected with a boiler waste gas generating device; the gas and water separator is connected with the secondary brine reactor; in addition, the mother liquor barrel is connected with the primary brine reactor, the raw brine barrel is also connected with the scrubber tower, and the refine brine barrel is also connected with the compressor; a scrubbing water outlet of the scrubber tower, a working liquid and sealing water outlet of the compressor and a separated water outlet of the gas and water separator are respectively connected with a water storage tank; and the water storage tank is also connected with the primary brine reactor through a pipeline and a pump. The brine and boiler waste gas purifying device can be used for treating boiler waste gas while purifying brine, thereby reducing the purifying cost and the energy consumption, saving water, achieving the purpose of no waste water emission, reducing the waste gas emission and lightening the environment pollution.
Description
Technical field
The utility model belongs to vacuum salt preparation brine, and the waste-gas cleaning technical field that produces of power station fire coal, gas fired-boiler, particularly a kind of vacuum salt preparation brine and boiler waste gas purification treatment unit.
Background technology
Contain Ca in the vacuum salt production industry calcium sulfate type bittern
2+, Mg
2+, SO
4 2-Etc. plurality of impurity ions, and Ca
2+, Mg
2+Content is far above sodium sulphate type bittern, as if directly enter vapo(u)rization system, the Ca that bittern is brought into without purification
2+, Mg
2+Enrichment Deng all cpds that forms will cause equipment scaling, reduce heat transfer efficiency, increase energy consumption; Also bigger to the quality product influence simultaneously.Therefore should purify bittern earlier before the evaporation, help prolonging the cycle of operation of vacuum salt making facility, reduce running cost, improve the effective rate of utilization of device, stably manufactured, reduction consume, reduce labor strength, improve the quality of products and production capacity.
The bittern purifying mode has a variety of, and wherein that commonly used is two alkaline process, lime-soda method and lime-saltcake-CO
2Method etc.Present domestic salt making enterprises adopts two alkaline process or lime-soda process purified brine mostly, but it is higher to purify cost.Because these two kinds of methods caustic soda and the soda ash price of adding are higher, and the calcium that contains in the bittern, magnesium ion content height, need the amount of caustic soda and soda ash bigger, cause purifying the cost height.
On the other hand, the boiler waste gas that power station fire coal, gas fired-boiler produce in the vacuum salt production industry (is flue gas, mainly contains CO
2, SO
2, dust etc.) all be not fully used usually, but directly discharge by the simple back of handling, unavoidably environment is polluted.
Also have in the prior art at present and utilize boiler waste gas to handle the technology and the device of purified brine simultaneously, its device synoptic diagram generally includes former halogen bucket, bittern demagging reaction container, deliming reaction container, smart halogen bucket, salt making system, puies forward the nitre system, scrubber tower, compressor, air water separator, and connecting tube etc. as shown in Figure 2; Wherein: former halogen bucket, bittern demagging, deliming reaction container, smart halogen bucket, salt making system, carry between the nitre system, pass through pipe connection successively; Between scrubber tower, compressor, the air water separator, pass through pipe connection successively; Scrubber tower also is connected with the boiler waste gas generation device by pipeline; Air water separator also is connected with bittern deliming reaction container by pipeline; Water out after the separating of the gas washing water out of scrubber tower, the working fluid of compressor and sealing water out, air water separator directly is connected with the external world.
Adapt with said apparatus, its technology generally includes deliming, removes reactive magnesium, makes key steps such as smart halogen, salt manufacturing, wherein:
Removing reactive magnesium is to add lime to carry out in former halogen, and reactive magnesium generates magnesium hydrate precipitate in lime and the bittern.Because of containing a certain amount of sodium sulfate in the former halogen, add lime and the reaction of sodium sulfate wherein generation magnesium hydrate precipitate.
The deliming reaction is the reacted clear liquid of demagging to be introduced in the deliming reaction container carry out, and introduces in the deliming reaction container simultaneously through the boiler waste gas after handling in advance and participates in second order reaction; Generate lime carbonate with the calcium reaction in the clear liquid.
Boiler waste gas need pass through scrubber tower gas washing, compressor compresses, air water separator separating treatment successively entering before the deliming reaction container participates in reaction, separates the back boiler waste gas as one of raw material of second order reaction.Wherein: when boiler waste gas carries out the gas washing processing in scrubber tower, to add tap water as wash water; When boiler waste gas carries out processed compressed in compressor, to add tap water as working fluid and sealing water; The gas washing water that from scrubber tower, comes out, the working fluid that from compressor, comes out and sealing water and from air water separator come out separate after water, or as discharge of wastewater; Or return bittern purifying, enter the salt manufacturing vapo(u)rization system again.
Make smart halogen step and be the clear liquid after the second order reaction is squeezed in the smart halogen bucket with pump standby, as the salt manufacturing raw material.
The salt manufacturing step is that smart halogen is delivered into salt making system, carries out multiple-effect evaporation, produces product salt behind the evaporative crystallization, and the mother liquor after the salt manufacturing mainly contains sodium sulfate, is used to carry nitre.
According to said apparatus and corresponding technical process, obviously, need to consume great amount of water resources, and wastewater discharge is big, big for environment pollution; If return the bittern purifying system, enter the salt manufacturing vapo(u)rization system owing to bring a large amount of tap water into, the halogen in the former halogen contains (being NaCl content) to be reduced, and needs the water yield of evaporation more, causes energy dissipation bigger.
The utility model content
The purpose of this utility model is at bittern purifying device and arts demand thereof consumption great amount of water resources in the above-mentioned prior art and wastewater discharge is big, big for environment pollution, the high deficiency of energy consumption, a kind of new vacuum salt preparation brine and boiler waste gas purification treatment unit are provided, this device can be handled boiler waste gas in purified brine, both reached the low-cost purpose that purifies bittern, but thereby also water saving, cut down the consumption of energy, reduce the waste gas discharge of wastewater and reduce pollution environment.
For achieving the above object, the utility model solves the technical scheme that its technical problem adopts and is:
A kind of vacuum salt preparation brine and boiler waste gas purification treatment unit, as shown in Figure 1, comprising: former halogen bucket, bittern A reactor, bittern second reactor, smart halogen bucket, salt making system, mother vat, scrubber tower, compressor, air water separator, and connecting tube etc.; Wherein:
Between former halogen bucket, bittern A reactor, bittern second reactor, smart halogen bucket, salt making system, the mother vat, pass through pipe connection successively;
Between scrubber tower, compressor, the air water separator, pass through pipe connection successively;
Scrubber tower also is connected with the boiler waste gas generation device by pipeline;
Air water separator also is connected with the bittern second reactor by pipeline;
In addition:
Mother vat also is connected with the bittern A reactor by pipeline;
Former halogen bucket also is connected with scrubber tower by pipeline;
Smart halogen bucket also is connected with compressor by pipeline;
Water out after the separating of the gas washing water out of scrubber tower, the working fluid of compressor and sealing water out, air water separator also is connected with retention basin by pipeline respectively;
Retention basin also is connected with the bittern A reactor by pipeline and pump.
In addition, because the utility model process using boiler waste gas is as gas washing, and in the boiler waste gas by containing acidic component, easily devices such as scrubber tower and air water separator are caused corrosion, therefore, these devices can adopt exotic materials with corrosion resistance characteristic (as the reinforced glass fiber reinforced plastic material etc.) to make.
When using said apparatus to carry out the purifying treatment of vacuum salt preparation brine and boiler waste gas, its technology can comprise: key steps such as first order reaction, second order reaction, the smart halogen of system, salt manufacturing:
First order reaction is former halogen to be introduced in the bittern A reactor carry out;
Second order reaction is the clear liquid after the first order reaction to be introduced in the bittern second reactor carry out, and introduces through boiler waste gas after the separation of scrubber tower gas washing, compressor compresses, air water separator separating treatment participating in second order reaction simultaneously in the bittern second reactor;
Making smart halogen step is that the clear liquid after the second order reaction is introduced in the smart halogen bucket, through sedimentation is standby once more, and the raw material of using as salt manufacturing.
The salt manufacturing step is that smart halogen is delivered into salt making system, carries out multiple-effect evaporation, produces product salt behind the evaporative crystallization, and mother liquor then returns the bittern purifying operation.
Wherein:
In the first order reaction, enter the bittern A reactor except former halogen, also comprise from the mother liquor of mother vat and from the gas washing water of scrubber tower, from the working fluid of compressor and sealing water, from water after the separating of air water separator;
In the second order reaction, boiler waste gas carries out gas washing when handling in scrubber tower, with former halogen as wash water; When boiler waste gas carries out processed compressed in compressor, with smart halogen as working fluid and the sealing water; The gas washing water that from scrubber tower, comes out, the working fluid that from compressor, comes out and sealing water and from air water separator come out separate after water, all store, return in the bittern A reactor by pump and participate in first order reaction by retention basin;
The mother liquor that obtains after the salt manufacturing step process is temporary in the mother vat, also turns back in the bittern A reactor and participates in first order reaction.
By said apparatus, can former halogen substitute tap water as the wash water in the scrubber tower, substitute tap water as working fluid in the compressor and sealing water with smart halogen, and the mother liquor after the salt manufacturing is returned first order reaction made full use of.
Wash water adopts former halogen to substitute the effect of tap water in the scrubber tower:
The one, because former halogen is weakly alkaline, then contain sour gas in the boiler waste gas.Adopt weakly alkaline bittern to substitute tap water and be used as gas water, the impurity component in the eccysis boiler waste gas more effectively, washing effect is better; But the bittern Returning reactor behind the gas washing participates in reaction simultaneously, and can not reduce the halogen content (being NaCl content) in the smart halogen, also can not pollute environment, makes it obtain comprehensive utilization, benign cycle in the formation system;
And the available technology adopting tap water is as gas water, the large usage quantity of water, and washing effect is poor slightly; The halogen that while gas washing water Returning reactor will reduce in the former halogen greatly contains (being NaCl content), if do not return direct discharging, can cause bigger pollution to environment again; In a word after the tap water wash water discharge system, no suitable wastewater treatment scheme;
Therefore, adopt former halogen to substitute tap water as wash water, but conserve water resource not only, but also save energy, improve the gas washing effect, and alleviate environmental pollution.
Working fluid and sealing hydromining substitute the effect of tap water in the compressor with smart halogen:
Compressor operating liquid and the smart halogen of sealing hydromining, the one, owing to removed foreign ion in the smart halogen, equipment itself there is not harm; The 2nd, but the water after recycling also Returning reactor participate in reaction, and can not reduce the halogen content (being NaCl content) in the smart halogen, can not pollute environment yet, make it obtain comprehensive utilization, circulate benignly the formation system in; The 3rd, after discharging, working fluid and sealing water has certain heat, and Returning reactor has also made full use of heat energy to reacting favourable;
And the available technology adopting tap water as compressor operating liquid and the sealing water, the one, the tap water wasting of resources is bigger, the 2nd, heat waste is bigger, waste water effluxes and also can affect greatly environment;
Therefore, adopt smart halogen to substitute tap water as compressor operating liquid and sealing water, further the conserve water resource, reduce energy consumption, alleviate environmental pollution.
Therefore, compared with prior art, the beneficial effects of the utility model are:
The utility model vacuum salt preparation brine and boiler waste gas purification treatment unit can be realized the comprehensive utilization and the closed circuit systemic circulation of resource, in purified brine, boiler waste gas is handled, both reduced the bittern purifying cost, water saving and cutting down the consumption of energy again, also can accomplish not have waste water and efflux and reduce exhaust gas emission, thereby alleviate environmental pollution.
Description of drawings
Fig. 1 shows the utility model vacuum salt preparation brine and boiler waste gas purification device synoptic diagram;
Fig. 2 shows prior art vacuum salt preparation brine and boiler waste gas purification device synoptic diagram.
Embodiment
Below in conjunction with embodiment the utility model is described in further detail.
But this should be interpreted as that the scope of the above-mentioned theme of the utility model only limits to following embodiment.
Embodiment
Present embodiment vacuum salt preparation brine and boiler waste gas purification treatment unit as shown in Figure 1,
Comprise: former halogen bucket, bittern A reactor, bittern second reactor, smart halogen bucket, salt making system, mother vat, scrubber tower, compressor, air water separator, and connecting tube etc.;
Wherein:
Between former halogen bucket, bittern A reactor, bittern second reactor, smart halogen bucket, salt making system, the mother vat, pass through pipe connection successively;
Between scrubber tower, compressor, the air water separator, pass through pipe connection successively;
Scrubber tower also is connected with the boiler waste gas generation device by pipeline;
Air water separator also is connected with the bittern second reactor by pipeline;
In addition:
Mother vat also is connected with the bittern A reactor by pipeline;
Former halogen bucket also is connected with scrubber tower by pipeline;
Smart halogen bucket also is connected with compressor by pipeline;
Water out after the separating of the gas washing water out of scrubber tower, the working fluid of compressor and sealing water out, air water separator also is connected with retention basin by pipeline respectively;
Retention basin also is connected with the bittern A reactor by pipeline and pump;
Scrubber tower and air water separator all adopt the reinforced glass fiber reinforced plastic material with corrosion resistance characteristic to make.
The above only is preferred embodiment of the present utility model, not in order to restriction the utility model, all any modifications of being done within spirit of the present utility model and principle, is equal to and replaces and improvement etc., all should be included within the protection domain of the present utility model.
Claims (1)
1. vacuum salt preparation brine and boiler waste gas purification treatment unit comprise: former halogen bucket, bittern A reactor, bittern second reactor, smart halogen bucket, salt making system, mother vat, scrubber tower, compressor, air water separator, and connecting tube, wherein:
Between former halogen bucket, bittern A reactor, bittern second reactor, smart halogen bucket, salt making system, the mother vat, pass through pipe connection successively;
Between scrubber tower, compressor, the air water separator, pass through pipe connection successively;
Scrubber tower also is connected with the boiler waste gas generation device by pipeline;
Air water separator also is connected with the bittern second reactor by pipeline;
It is characterized in that:
Mother vat also is connected with the bittern A reactor by pipeline;
Former halogen bucket also is connected with scrubber tower by pipeline;
Smart halogen bucket also is connected with compressor by pipeline;
Water out after the separating of the gas washing water out of scrubber tower, the working fluid of compressor and sealing water out, air water separator also is connected with retention basin by pipeline respectively;
Retention basin also is connected with the bittern A reactor by pipeline and pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203180299U CN201648011U (en) | 2009-12-22 | 2009-12-22 | Brine and boiler waste gas purifying device in vacuum salt production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203180299U CN201648011U (en) | 2009-12-22 | 2009-12-22 | Brine and boiler waste gas purifying device in vacuum salt production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201648011U true CN201648011U (en) | 2010-11-24 |
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ID=43113241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203180299U Expired - Fee Related CN201648011U (en) | 2009-12-22 | 2009-12-22 | Brine and boiler waste gas purifying device in vacuum salt production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201648011U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104743577A (en) * | 2015-04-02 | 2015-07-01 | 重庆合川盐化工业有限公司 | Well and rock salt brine pretreatment system |
| CN110272062A (en) * | 2019-06-11 | 2019-09-24 | 山东肥城海晶盐化有限公司 | Salt manufacturing centrifuge gets rid of rear liquid folding and unfolding technique |
-
2009
- 2009-12-22 CN CN2009203180299U patent/CN201648011U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104743577A (en) * | 2015-04-02 | 2015-07-01 | 重庆合川盐化工业有限公司 | Well and rock salt brine pretreatment system |
| CN110272062A (en) * | 2019-06-11 | 2019-09-24 | 山东肥城海晶盐化有限公司 | Salt manufacturing centrifuge gets rid of rear liquid folding and unfolding technique |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20171222 |