CN102396696B - Method for preparing refined natural nutrient salt - Google Patents
Method for preparing refined natural nutrient salt Download PDFInfo
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- CN102396696B CN102396696B CN201010282358XA CN201010282358A CN102396696B CN 102396696 B CN102396696 B CN 102396696B CN 201010282358X A CN201010282358X A CN 201010282358XA CN 201010282358 A CN201010282358 A CN 201010282358A CN 102396696 B CN102396696 B CN 102396696B
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
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Abstract
The invention provides a method for preparing refined natural nutrient salt, which comprises the following steps: preheating and evaporating; separating and backflowing; secondary crystallizing, drying and sieving. According to the invention, seawater is taken as a raw material which is cheap, no raw material competitions with other manufacturers is generated. The secondary crystallization theory is used so that the crystallization speed is fast and the output is raised. The process of the invention keeps macronutrients in natural seawater and contains trace elements like calcium, magnesium, potassium, iron, copper and zinc which are good to human body, the output multi-element crystals make a contribution for raising the health level of human body, and have high social benefit. During the production process, a lot of magnesium ions are contained in brine all along, salt scale on a heating pipe is loosening and easy to treat without production stop for removing a scale layer of the heating pipe. The product of the invention is a good flavouring, and a nutriment and fresh-keeping product with cheap price.
Description
Technical field
The present invention relates to the preparation method of food or foodstuff, particularly a kind of method for making of the refined natural nutritive salt as flavouring.
Background technology
Now domestic edible purified salt is all that adopts following processing method to make: first water dissolves sea salt or rock salt is made salt solution, hereinafter referred to as bittern, then removes silt etc. through sand filter take sea salt or rock salt as raw material.Then arrive evaporimeter through preheater, pass into evaporimeter with superheated vapour, the heating saturated bittern makes the sodium chloride crystallization, makes macrogranule salt only contain a small amount of calcium, magnesium, potassium etc. and removes with impurity.Through centrifuge venting bittern, drying obtains refined salt finished product processed again again.In addition the beach is shone macrogranule salt and send into again washer through pulverizing, water rinses or processes with chemical method, further deliming, magnesium, potassium, iron, copper, zinc geometric ratio be few nutrition metal ion that it is enough in the past, use again centrifuge venting bittern, the wet salt that obtains is sent into the drier drying, namely makes the edible salt of sodium chloride-containing more than 97%.Be called disalt.Although other also shines saturated halogen as raw material Zai You Ma take the beach, through the purified salt that evaporative crystallization obtains, its sodium chloride content is more than 97%.Be all high sodium salt, it is also 97%-98% that the macrogranule salt sodium chloride content is shone on present beach, neither macrogranule salt sodium chloride content 90% in the past in because it is to update the result of Sheng Chan Gong Dou with the requirement of industrial development.Edible salt is also because of old theory and standard, take high sodium salt as high-quality. separately there is the beach to shine fine salt and also claims natural salt, wherein the above salt of nutrient is many is a bit less, macrogranule salt content before still the end reaches, more important be because of outdoor production insoluble matter impurity many. in society, the common people reflect that this salt cooks not fragrant, mix the slow of Shi Rong Solution, it is sick that the high sodium of medical circle reflection is easily sent out hypertension painstaking effort villous themeda, floods industry processed and reflect the present situations such as this salt fresh-keeping effect is bad.
Although the purified salt purity that this method makes is high, a small amount of nutrient such as the calcium in former sea salt rock salt, magnesium, potassium, iron, copper, zinc is removed substantially by dissolving recrystallization or pulverizing washing.Because being subjected to the conventional theory that forms and the impact of standard, further remove the metal ions such as calcium, magnesium, potassium, iron, copper, zinc very irrational especially as impurity in washer again, simultaneously, be flushed away, cause significant wastage because this procedure of washing is dissolved in bittern again mass crystallization salt.Energy consumption is increased, and water resource also consumes in vain, poor product quality, and unfavorable health of human body, cost up, economic benefit is low.
Summary of the invention
For the deficiencies in the prior art, the method for making that the purpose of this invention is to provide a kind of refined natural nutritive salt, the refined natural nutritive salt sodium chloride content of producing is reduced in 90%-94% in right amount, namely reach the macrogranule salt that the fifties, the common people proposed and do fragrant chemical composition, but the method for making energy savings than other salt, reduce production costs, improve the quality of products again, make it to be rich in the trace element of a large amount of useful healths.Making the production of edible salt that a new path is provided from modern theory, technique, standard, is also to implement the transformation industrial structure of country's proposition and a measure of development pattern.
For achieving the above object, the technical solution used in the present invention is to provide a kind of method for making of refined natural nutritive salt, and this method for making comprises the following steps:
1., raw material preparation:
Import halogen storaging pool with the seawater that shines through the beach, utilize Exposure to Sunlight that seawater is reached near saturated bittern as base stock, evaporator goes out the 10%-30% of bittern after salt as basic material;
2., preheating and evaporation:
At first the above-mentioned basic material of making is entered evaporator, evaporate, reach about 60 degree through preheat temperature after in evaporation process, above-mentioned base stock being filtered again, constantly replenish by the requirement of evaporator liquid level and enter described evaporator and carry out the salt grain that evaporation and concentration becomes supersaturation bittern and separates out the multielement crystal, this salt grain enters collection salt case, when reaching the 60%-70% of collection salt case volume, its salt slurry with a part of bittern is entered settler;
3., separate and reflux:
The salt slurry that contains the multielement crystal at described supersaturation bittern stirs in settler, contains the grain salt of multielement salt crystal in settler bottom sedimentation, and middle bittern with trickle salt grain is that rare salt slurry passes back into bittern Chu and deposits tank and enter described evaporator; Settler bottom being contained rare salt slurry that the cyclone on the salt slurry warp let-off centrifuge of multielement salt crystal and part bittern screws out passes back into the bittern holding vessel and enters evaporator; The thick salt slurry that gets off from the cyclone eddy flow enters centrifuge, realizes Separation of Solid and Liquid, obtains wet salt, and the bittern that gets rid of rear band portion salt grain through centrifuge is rare salt slurry, then enters evaporator through the bittern holding vessel;
4., secondary crystallization:
With step 3. in the rare salt slurry of three Ge channels, the trickle salt grain of bringing evaporator into is the nuclei of crystallization, carries out quick secondary crystallization at evaporator; Bittern in rare salt slurry has increased basic material to evaporator, contains the nutritive salt of multielement salt crystal in order to formation, and making the sodium chloride content in nutritive salt is 90%-94%;
5., dry and screening:
With step 3. in wet salt enter drier through conveyer, dry at 70-120 ℃ of temperature, then pass through sifter, sieve by the layering of salt granularity, make the different refined natural nutritive salt finished product of granularity.
Effect of the present invention is:
1, the inventive method is take seawater as raw material, and raw material is cheap, and is inexhaustible, do not contend over raw materials with other producer.And the theory of application secondary crystallization, crystallization is fast, improves output.
2, the inventive method does not comprise any chemical treatment and adds the technique of material, utilize the bittern of this work one process to increase contained macronutrient in natural sea-water, the content of sodium in the salt of crystallization is suitably reduced, be rich in again the useful nutrient of people by [mg/kg], the trace element such as calcic＞3100, magnesium＞1530, potassium＞520, iron＞10, copper＞0.8, zinc＞0.2, the polynary crystalline salt of this of output is made contributions to the body health level that improves the trencherman, the social benefits such as the incidence of disease of the illnesss such as favourable reduction hypertension painstaking effort villous themeda.
3, the inventive method is saved the energy, saves water resource, saves associated materials consumption, can reduce production costs, and increases economic efficiency.
4, the refined natural nutritive salt that makes of the inventive method, because it is the crystal of multiple element, crystal is loose, wherein magnesium chloride hexahydrate (MgCl
26H
2O) content is high, therefore the absorption affinity of product is strong, dissolving is fast, and solubility is high, and these characteristics are especially significant as flavor enhancement in food processing.As: salted white is delicious, the not flavescence of good refreshing effect green, the flavouring of being not only, and be cheap nutriment.In addition, this product look white light is bright, and quality is better than state-set standard.
5, in the production process of the inventive method, contain a large amount of magnesium ions and other materials in bittern owing to from start to finish making, make the salt crust of tying on heating tube more loose, be easy to process, needn't stop production and remove heating pipe scale layer.Increase benefit for production continuously assurance is provided.
The specific embodiment
In conjunction with the embodiments the method for making of refined natural nutritive salt of the present invention is illustrated.
According to modern medical theory, absorb the various trace elements such as calcium, magnesium, potassium, iron, copper, zinc to keeping the coordinated balance of human physiological functions, prevent cardiovascular, hypertension, delay senility significant.Under new theoretical direction, the inventive method is added the basic material in this process just take concentrated seawater as base stock ， And, make it as often as possible keep the healthy trace elements with household that is rich in seawater, by following step, produces refined natural nutritive salt.
The method for making of refined natural nutritive salt of the present invention, this method for making comprises the following steps:
1., raw material preparation:
Import halogen storaging pool with the seawater that shines through the beach, utilize Exposure to Sunlight that seawater is reached near saturated bittern as base stock, evaporator goes out the 10%-30% of bittern after salt as basic material;
2., preheating and evaporation:
At first the above-mentioned basic material of making is entered evaporator, evaporate, reach about 60 degree through preheat temperature after in evaporation process, above-mentioned base stock being filtered again, constantly replenish by the evaporation operation rules and enter described evaporator and carry out the salt grain that evaporation and concentration becomes supersaturation bittern and separates out the multielement crystal, this salt grain enters collection salt case, when reaching the 60%-70% of collection salt case volume, its salt slurry with a part of bittern is entered settler;
3., separate and reflux:
The salt slurry that contains the multielement crystal at described supersaturation bittern stirs in settler, contains the macrogranule salt of multielement salt crystal in settler bottom sedimentation, and middle bittern with trickle salt grain is that rare salt slurry passes back into the bittern holding vessel and enters described evaporator; Settler bottom being contained rare salt slurry that the cyclone on the salt slurry warp let-off centrifuge of multielement salt crystal and part bittern screws out passes back into the bittern holding vessel and enters evaporator; The thick salt slurry that gets off from the cyclone eddy flow enters centrifuge, realizes Separation of Solid and Liquid, obtains wet salt, and the bittern that gets rid of rear band portion salt grain through centrifuge is rare salt slurry, then enters evaporator through the bittern holding vessel;
4., secondary crystallization:
With step 3. in the rare salt slurry of three Ge channels, the trickle salt grain of bringing evaporator into is the nuclei of crystallization, carries out quick secondary crystallization at evaporator; Bittern in rare salt slurry has increased basic material to evaporator, contains the nutritive salt of multielement salt crystal in order to formation, makes the sodium chloride content in nutritive salt reach 90%-94%, and calcium in nutritive salt, magnesium, potassium, iron, copper, zinc etc. are increased in right amount;
5., dry and screening:
With step 3. in wet salt enter drier through conveyer, dry at 70-120 ℃ of temperature, then pass through sifter, sieve by the layering of salt granularity, make the different refined natural nutritive salt finished product of granularity.
The method for making of refined natural nutritive salt of the present invention is achieved in that
The method for making of refined natural nutritive salt comprises the following steps:
1., import halogen storaging pool with the seawater that shines through the beach, utilize Exposure to Sunlight that seawater is reached near saturated bittern as base stock, evaporator goes out the 10%-30% of bittern after salt as basic material.
2., preheating and evaporation:
At first the above-mentioned basic material of making is entered evaporator, evaporate, reach the 60 left stones of degree through preheat temperature after in evaporation process, above-mentioned base stock being filtered again, constantly replenish by the evaporization process operational procedure and enter described evaporator and carry out the salt grain that evaporation and concentration becomes supersaturation bittern and separates out the multielement crystal, this salt grain enters collection salt case, when reaching the 60%-70% of collection salt case volume, its salt slurry with a part of bittern is entered settler.
3., separate and reflux:
The salt slurry that contains the multielement crystal at described supersaturation bittern stirs in settler, contains the macrogranule salt of multielement salt crystal in settler bottom sedimentation, and middle bittern with trickle salt grain is that rare salt slurry passes back into the bittern holding vessel and enters described evaporator; Settler bottom being contained rare salt slurry that the cyclone on the salt slurry warp let-off centrifuge of multielement salt crystal and part bittern screws out passes back into the bittern holding vessel and enters evaporator; The thick salt slurry that gets off from the cyclone eddy flow enters centrifuge, realizes Separation of Solid and Liquid, obtains wet salt, and the bittern that gets rid of rear band portion salt grain through centrifuge is rare salt slurry, then enters evaporator through the bittern holding vessel.
4., secondary crystallization:
With step 3. in the rare salt slurry of three Ge channels, the trickle salt grain of bringing evaporator into is the nuclei of crystallization, carries out quick secondary crystallization at evaporator; Bittern in rare salt slurry has increased the salt that the favourable formation of basic material contains multielement salt crystal to evaporator, and this salt sodium chloride content is 90%-94%.Edible salt sodium chloride content on market is all 97-98% now, and the trace element of its nutrition there is no.The characteristics of multielement crystalline salt of the present invention are the micro-high of the low and nutrition of sodium chloride.Quality assay method by industry edible salt detects, and its nutritive element content is unit by [mg/kg, ppm], contains calcium constituent＞3100, contains magnesium elements＞1530, contains potassium element＞520, contains ferro element＞10, contains copper＞0.8, contains zinc element＞0.2.
Embodiment:
The method for making of refined natural nutritive salt of the present invention, take concentrated seawater as base stock, seawater is shone on the beach import in halogen storaging pool, utilize Exposure to Sunlight to make it to become bittern near saturated, pass into the multilayer sand filter again and filter, the bittern of removing the solid impurity such as silt is base stock.The bittern that prestores take the bittern holding vessel is as basic material.Produce Bei Liao Time and first basic material is entered evaporator, after evaporation starts successively with its base stock through the preheater preheating, enter evaporator, constantly advance base stock according to the liquid level rules of evaporator, constantly advance bittern Chu and deposit rare salt slurry in tank, make evaporator keep liquid level.
Evaporator general control gauge pressure is 2,94*100000 Pascal, 1.013*10000 Pascal, bittern evaporation is to supersaturation and separate out the crystalline solid of multielement salt, when its salt grain of separating out reaches the 60%-70% of salt case volume, this salt slurry is entered settler, and the bittern that contains trickle salt grain in the centre of stirring sedimentation is that rare salt slurry passes back into the bittern holding vessel and enters evaporator after hot device again.The salt slurry of settler through stirring through cyclone, makes the salt slurry that contains trickle salt grain flow back to the bittern holding vessel and returns evaporator after hot device again.The salt that contains macrogranule salt is starched into centrifuge, realizes Separation of Solid and Liquid, obtains wet salt.Its halogen that throws away with trickle salt grain is that centrifuge gets rid of rear liquid and enters the bittern holding vessel, and the nucleus of this tank and bittern are that rare salt slurry advances evaporator through preheater.Its wet salt enters drier, and temperature is 110 ℃ of left and right, enters sifter after drying, namely makes varigrained refined natural nutritive salt finished product.Packing is divided large packing and inner wrapping, enters afterwards warehouse for finished product.
Claims (1)
1. the method for making of a refined natural nutritive salt, this method for making comprises the following steps:
1., raw material preparation:
Import halogen storaging pool with the seawater that shines through the beach, utilize Exposure to Sunlight that seawater is reached near saturated bittern as base stock, evaporator goes out the 10%-30% of bittern after salt as basic material;
2., preheating and evaporation:
At first the above-mentioned basic material of making is entered evaporator, evaporate, reach 60 degree through preheating after in evaporation process, above-mentioned base stock being filtered again, replenish and to enter described evaporator and carry out the salt grain that evaporation and concentration becomes supersaturation bittern and separates out the multielement crystal, this salt grain enters collection salt case, when reaching the 60%-70% of collection salt case volume, its salt slurry with a part of bittern is entered settler;
3., separate and reflux:
The salt slurry that described supersaturation bittern is contained the multielement crystal stirs in settler, contains the grain salt of multielement salt crystal in settler bottom sedimentation, and middle bittern with trickle salt grain is that rare salt slurry passes back into the bittern holding vessel and enters described evaporator; Settler bottom being contained rare salt slurry that the cyclone on the salt slurry warp let-off centrifuge of multielement salt crystal and part bittern screws out passes back into the bittern holding vessel and enters evaporator; The thick salt slurry that gets off from the cyclone eddy flow enters centrifuge, realizes Separation of Solid and Liquid, obtains wet salt, and the bittern that gets rid of rear band portion salt grain through centrifuge is rare salt slurry, then enters evaporator through the bittern holding vessel;
4., secondary crystallization:
With step 3. in the rare salt slurry of three channels, the trickle salt grain of bringing evaporator into is the nuclei of crystallization, carries out quick secondary crystallization at evaporator; Bittern in rare salt slurry has increased basic material to evaporator, the nutritive salt that contains multielement salt crystal in order to formation makes the sodium chloride content in nutritive salt reach 90%-94%, and calcium, magnesium, potassium, iron, copper, zinc in nutritive salt are increased in right amount, nutritive element content is by [mg/kg, ppm] be unit, contain calcium constituent〉3100, contain magnesium elements〉1530, contain potassium element〉520, contain ferro element〉10, contain copper〉0.8, contain the zinc element〉0.2;
5., dry and screening:
With step 3. in wet salt enter drier through conveyer, dry at 70-120 ℃ of temperature, then pass through sifter, sieve by the layering of salt granularity, make the different refined natural nutritive salt finished product of granularity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010282358XA CN102396696B (en) | 2010-09-15 | 2010-09-15 | Method for preparing refined natural nutrient salt |
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| CN201010282358XA CN102396696B (en) | 2010-09-15 | 2010-09-15 | Method for preparing refined natural nutrient salt |
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| CN102396696A CN102396696A (en) | 2012-04-04 |
| CN102396696B true CN102396696B (en) | 2013-06-19 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103637160A (en) * | 2013-12-23 | 2014-03-19 | 中盐皓龙盐化有限责任公司 | Preparation process of liquid edible salt |
| CN104543933A (en) * | 2015-01-28 | 2015-04-29 | 山东岱岳制盐有限公司 | Method for preparing deep well water salt |
| CN108323745A (en) * | 2018-03-20 | 2018-07-27 | 天津长芦汉沽盐场有限责任公司 | A kind of refined crushing washing salt production method of the reparing process containing crystal form |
| CN111067080A (en) * | 2019-12-15 | 2020-04-28 | 李涛 | Health-preserving salt and preparation method thereof |
| CN111011820B (en) * | 2019-12-25 | 2022-11-15 | 山东夙沙高科生物有限公司 | Production process for refining low-sodium salt and alkaline water by adopting brine |
| CN111528442A (en) * | 2020-05-19 | 2020-08-14 | 唐山市银海食盐有限公司 | Method for preparing flaky edible salt by using seawater |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051898A (en) * | 1990-12-28 | 1991-06-05 | 天津轻工业学院盐业工程系盐化厂 | The method for making of refined natural salt |
| JP2002255543A (en) * | 2001-02-27 | 2002-09-11 | Nishi Nippon Gijutsu Kaihatsu Kk | Salt production facility producing natural salt from seawater |
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2010
- 2010-09-15 CN CN201010282358XA patent/CN102396696B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051898A (en) * | 1990-12-28 | 1991-06-05 | 天津轻工业学院盐业工程系盐化厂 | The method for making of refined natural salt |
| JP2002255543A (en) * | 2001-02-27 | 2002-09-11 | Nishi Nippon Gijutsu Kaihatsu Kk | Salt production facility producing natural salt from seawater |
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