CN203593633U - Energy-saving salt and nitre co-production device - Google Patents
Energy-saving salt and nitre co-production device Download PDFInfo
- Publication number
- CN203593633U CN203593633U CN201320697272.2U CN201320697272U CN203593633U CN 203593633 U CN203593633 U CN 203593633U CN 201320697272 U CN201320697272 U CN 201320697272U CN 203593633 U CN203593633 U CN 203593633U
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- China
- Prior art keywords
- effect
- salt
- nitre
- evaporating pot
- autoclave
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- Expired - Lifetime
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- 150000003839 salts Chemical class 0.000 title claims abstract description 58
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 238000001704 evaporation Methods 0.000 claims abstract description 67
- 230000000694 effects Effects 0.000 claims abstract description 61
- 238000007731 hot pressing Methods 0.000 claims abstract description 17
- 230000008020 evaporation Effects 0.000 claims abstract description 13
- 241001529739 Prunella <angiosperm> Species 0.000 claims description 14
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 239000012452 mother liquor Substances 0.000 claims description 10
- 238000011084 recovery Methods 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 6
- 229910001039 duplex stainless steel Inorganic materials 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims description 3
- 150000002367 halogens Chemical class 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 10
- 230000005611 electricity Effects 0.000 abstract description 4
- 241001131796 Botaurus stellaris Species 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000007738 vacuum evaporation Methods 0.000 abstract description 3
- 239000000498 cooling water Substances 0.000 abstract description 2
- 230000009290 primary effect Effects 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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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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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model relates to an energy-saving salt and nitre co-production device. The salt and nitre co-production device comprises a refined bittern barrel, a grading pre-heater, a hot pressing salt production system, a vacuum salt production system and a mother liquid recovering system which are in pipeline connection in sequence; vapor of a primary-effect autoclave is recycled and utilized by a vapor compressing system to circularly provide vapor energy source to the primary-effect autoclave. According to the device, the hot pressing salt production device adopts electricity as a main energy source, and the multiple-effect vacuum evaporation adopts vapor as another energy source, so as to facilitate vapor and electricity balance in the cogeneration production, and achieve the goal of relatively high productivity; the hot pressing salt production technology adopts the salt production heat source as secondary vapor latent heat for circulating utilization, so that a furnace room and a great amount of circulating cooling water are saved; compared to independent using of multiple-effect evaporation, the hot pressing salt production technology has a better energy saving effect, and is low in air and environment pollution; based on a steady operation condition of the original system, just an autoclave, a compressor and accessories are additionally required; the technology is simple.
Description
Technical field
The utility model relates to salt making equipment technical field, particularly a kind of energy-saving sal prunella combination preparing device.
Background technology
20 century 70s, the appearance of world energy sources crisis, has accelerated the development of mechanical thermal compression technology.In succession build up many covers hot pressing salt making apparatus in Italy, Switzerland, Austria, Thailand, the U.S., Spain etc., and constantly to large scale development and tackling key problem, the therefore external hot pressing salt making technology salt manufacturing that adopts more.But because the type of external raw brine is different from domestic situation, while adopting the salt manufacturing of hot pressing salt making technology, be all generally independent salt manufacturing or nitre processed, mother liquid recovery process is rarely found.
And existing sal prunella combination preparing device all adopts multiple-effect vacuum evaporation+mother liquid recovery process, if be all replaced with mechanical hot pressing contraction salt, not only cost is high, and original production equipment can only give it up, and this certainly will cause very large waste.
According to the scaled value of China's vapour, electric signature coal, use single-stage machinery thermo compression salt making technology approximately to save 1/4th than multiple-effect vacuum evaporation, this is appreciable numeral, and adopts single-stage machinery thermo compression salt making technology also to meet the energy-saving and cost-reducing policy of China.Because coal price is high, change soon, and electricity price is more stable, changes little; So adopting the salt manufacturing of single-stage machinery thermo compression is the inexorable trend developing in the future.
Utility model content
The technical problems to be solved in the utility model is: high in order to overcome existing sal prunella combination preparing device energy consumption, and be all transformed into hot pressing salt manufacturing apparatus cost high, cannot sal prunella coproduction and original device deficiency that can not recycle, the utility model provides a kind of energy-saving sal prunella combination preparing device.
The utility model solves the technical scheme that its technical problem adopts: a kind of energy-saving sal prunella combination preparing device, comprises the smart halogen bucket that pipeline connects successively, classification preheater, hot pressing salt system, vacuum salt production system and mother liquor recovery system, described vacuum salt production system comprises the effect evaporating pot that pipeline connects successively, two effect evaporating pots, triple effect evaporator, salt whizzer and salt drying bed, described mother liquor recovery system comprises the quadruple effect evaporating pot that pipeline connects successively, one-level preheater, secondary preheater, nitre evaporating pot processed, nitre whizzer and nitre drying bed, described nitre evaporating pot processed is also connected with flash evaporation tank, and described flash evaporation tank is connected with quadruple effect evaporating pot pipeline, a described effect autoclave, one effect evaporating pot, two effect evaporating pots, triple effect evaporator and quadruple effect evaporating pot all have the salt discharge outlet of salt discharge slurry, each salt discharge outlet is all connected with salt whizzer pipeline, described nitre evaporating pot processed has row's nitre outlet of row's nitre slurry, the outlet of row's nitre is connected with nitre whizzer pipeline, described hot pressing salt system comprises effect autoclave and a steam compression system, and described steam compression system reclaims the steam of a described effect autoclave and utilizes the described steam of a described effect autoclave to provide steam energy for a described effect autoclave circulates.
Described evaporating pot is axial admission external-heat forced circulation evaporation tank.The advantages such as it is high that this evaporating pot has velocity in pipes, and enhancement of heat transfer slows down in heating tube and the fouling of evaporating pot tank skin, and production intensity is large, alleviates hot short circuit phenomenon, improves effective heat transfer temperature difference, and the loss of recycle pump vortex is little, circulation resistance is low.
The material of described each evaporating pot is duplex stainless steel clad plate.Owing to having certain bonding strength between the multiple layer of composition board and basic unit, therefore can bear thermal stresses and pull of vacuum, have both the low price advantage of stainless solidity to corrosion and composition board simultaneously.
The technical process of energy-saving sal prunella combination preparing device of the present utility model is: after the classified preheater heating of refining bittern after purification, enter successively an effect autoclave, an effect evaporating pot, two effect evaporating pot, triple effect evaporator and quadruple effect evaporating pots.Salt manufacturing enters nitre evaporating pot processed again containing nitre mother liquor after one-level preheater and the heating of secondary preheater, and after sufficient crystallising, mother liquor, through flash evaporation tank, goes to quadruple effect evaporating pot recrystallize.That one effect autoclave, one/bis-/triple effect evaporator and quadruple effect evaporating pot salt discharge slurry enter is centrifugal, dehydration and dry after be delivered to packing shop by belt conveyor.Equally, nitre evaporating pot row nitre processed enters centrifuge dewatering, after being dried, is delivered to nitre wrapping machine packing warehouse-in by belt conveyor.
The beneficial effects of the utility model are, energy-saving sal prunella combination preparing device of the present utility model, hot pressing salt making apparatus is take electricity consumption as main, multiple-effect vacuum evaporates take vapour as main, extremely be conducive to the vapour electrobalance in cogeneration production, this pattern can be with less investment and minimum power consumption, reaches the object of larger production capacity.Hot pressing salt making technology, because being recycling of secondary steam latent heat by its salt manufacturing thermal source, had both been saved boiler house, had saved again a large amount of recirculated cooling waters, used more separately Saving Energy of Multi-effect Evaporation effective, and little to atmosphere and environmental pollution; Keeping under the state of original system steady running, only needing to increase an autoclave and compressor and annex thereof, technique is simple, and the equipment of use is also less.Cost of investment is low compared with project begun newly, and successful after transformation.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of the optimum embodiment of energy-saving sal prunella combination preparing device of the present utility model.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present utility model is only described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in Figure 1, the energy-saving sal prunella combination preparing device of one of the present utility model, comprises the smart halogen bucket that pipeline connects successively, classification preheater, hot pressing salt system, vacuum salt production system and mother liquor recovery system, described vacuum salt production system comprises the effect evaporating pot that pipeline connects successively, two effect evaporating pots, triple effect evaporator, salt whizzer and salt drying bed, described mother liquor recovery system comprises the quadruple effect evaporating pot that pipeline connects successively, one-level preheater, secondary preheater, nitre evaporating pot processed, nitre whizzer and nitre drying bed, described nitre evaporating pot processed is also connected with flash evaporation tank, and described flash evaporation tank is connected with quadruple effect evaporating pot pipeline, a described effect autoclave, one effect evaporating pot, two effect evaporating pots, triple effect evaporator and quadruple effect evaporating pot all have the salt discharge outlet of salt discharge slurry, each salt discharge outlet is all connected with salt whizzer pipeline, described nitre evaporating pot processed has row's nitre outlet of row's nitre slurry, the outlet of row's nitre is connected with nitre whizzer pipeline, described hot pressing salt system comprises effect autoclave and a steam compression system, and described steam compression system reclaims the steam of a described effect autoclave and utilizes the described steam of a described effect autoclave to provide steam energy for a described effect autoclave circulates.
Described evaporating pot is axial admission external-heat forced circulation evaporation tank.The advantages such as it is high that this evaporating pot has velocity in pipes, and enhancement of heat transfer slows down in heating tube and the fouling of evaporating pot tank skin, and production intensity is large, alleviates hot short circuit phenomenon, improves effective heat transfer temperature difference, and the loss of recycle pump vortex is little, circulation resistance is low.
The material of described each evaporating pot is duplex stainless steel clad plate.Owing to having certain bonding strength between the multiple layer of composition board and basic unit, therefore can bear thermal stresses and pull of vacuum, have both the low price advantage of stainless solidity to corrosion and composition board simultaneously.
Technical process is: after the classified preheater heating of refining bittern after purification, enter successively an effect autoclave, an effect evaporating pot, two effect evaporating pot, triple effect evaporator and quadruple effect evaporating pots.Salt manufacturing enters nitre evaporating pot processed again containing nitre mother liquor after one-level preheater and the heating of secondary preheater, and after sufficient crystallising, mother liquor, through flash evaporation tank, goes to quadruple effect evaporating pot recrystallize.That one effect autoclave, one/bis-/triple effect evaporator and quadruple effect evaporating pot salt discharge slurry enter is centrifugal, dehydration and dry after be delivered to packing shop by belt conveyor.Equally, nitre evaporating pot row nitre processed enters centrifuge dewatering, after being dried, is delivered to nitre wrapping machine packing warehouse-in by belt conveyor.
Take above-mentioned foundation desirable embodiment of the present utility model as enlightenment, by above-mentioned description, relevant staff can, not departing from the scope of this utility model technological thought, carry out various change and modification completely.The technical scope of this utility model is not limited to the content on specification sheets, must determine its technical scope according to claim scope.
Claims (3)
1. an energy-saving sal prunella combination preparing device, is characterized in that: comprise the smart halogen bucket that pipeline connects successively, classification preheater, hot pressing salt system, vacuum salt production system and mother liquor recovery system, described vacuum salt production system comprises the effect evaporating pot that pipeline connects successively, two effect evaporating pots, triple effect evaporator, salt whizzer and salt drying bed, described mother liquor recovery system comprises the quadruple effect evaporating pot that pipeline connects successively, one-level preheater, secondary preheater, nitre evaporating pot processed, nitre whizzer and nitre drying bed, described nitre evaporating pot processed is also connected with flash evaporation tank, and described flash evaporation tank is connected with quadruple effect evaporating pot pipeline, a described effect autoclave, one effect evaporating pot, two effect evaporating pots, triple effect evaporator and quadruple effect evaporating pot all have the salt discharge outlet of salt discharge slurry, each salt discharge outlet is all connected with salt whizzer pipeline, described nitre evaporating pot processed has row's nitre outlet of row's nitre slurry, the outlet of row's nitre is connected with nitre whizzer pipeline, described hot pressing salt system comprises effect autoclave and a steam compression system, and described steam compression system reclaims the steam of a described effect autoclave and utilizes the described steam of a described effect autoclave to provide steam energy for a described effect autoclave circulates.
2. energy-saving sal prunella combination preparing device as claimed in claim 1, is characterized in that: described evaporating pot is axial admission external-heat forced circulation evaporation tank.
3. energy-saving sal prunella combination preparing device as claimed in claim 1, is characterized in that: the material of described each evaporating pot is duplex stainless steel clad plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320697272.2U CN203593633U (en) | 2013-11-06 | 2013-11-06 | Energy-saving salt and nitre co-production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320697272.2U CN203593633U (en) | 2013-11-06 | 2013-11-06 | Energy-saving salt and nitre co-production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203593633U true CN203593633U (en) | 2014-05-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320697272.2U Expired - Lifetime CN203593633U (en) | 2013-11-06 | 2013-11-06 | Energy-saving salt and nitre co-production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203593633U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105271308A (en) * | 2015-11-20 | 2016-01-27 | 湖南省湘衡盐化有限责任公司 | Vapor recovery method and device for salt and sodium sulfate co-production |
| CN107572554A (en) * | 2017-09-26 | 2018-01-12 | 中盐金坛盐化有限责任公司 | A kind of clean energy-saving type produces salt producing craft |
| CN114516646A (en) * | 2022-03-19 | 2022-05-20 | 四川西秦盐化科技有限公司 | Efficient and energy-saving salt and nitrate co-production process |
-
2013
- 2013-11-06 CN CN201320697272.2U patent/CN203593633U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105271308A (en) * | 2015-11-20 | 2016-01-27 | 湖南省湘衡盐化有限责任公司 | Vapor recovery method and device for salt and sodium sulfate co-production |
| CN107572554A (en) * | 2017-09-26 | 2018-01-12 | 中盐金坛盐化有限责任公司 | A kind of clean energy-saving type produces salt producing craft |
| CN114516646A (en) * | 2022-03-19 | 2022-05-20 | 四川西秦盐化科技有限公司 | Efficient and energy-saving salt and nitrate co-production process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140514 |