CN108323745A - A kind of refined crushing washing salt production method of the reparing process containing crystal form - Google Patents
A kind of refined crushing washing salt production method of the reparing process containing crystal form Download PDFInfo
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- CN108323745A CN108323745A CN201810227317.7A CN201810227317A CN108323745A CN 108323745 A CN108323745 A CN 108323745A CN 201810227317 A CN201810227317 A CN 201810227317A CN 108323745 A CN108323745 A CN 108323745A
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L27/00—Spices; Flavouring agents or condiments; Artificial sweetening agents; Table salts; Dietetic salt substitutes; Preparation or treatment thereof
- A23L27/40—Table salts; Dietetic salt substitutes
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Abstract
A kind of refined crushing washing salt production method of the reparing process containing crystal form, this method once crush solarization sea salt using solarization sea salt as raw material, and spiral desalinization of soil by flooding or leaching machine washing is washed, and a countercurrent washing and crystal form reparing process crush the production of washing salt.This method can be according to finished product salt type granularity needs, the granularity of salt is controlled by adjusting pulverizer two pairs of rollers spacing, salt slurry after washing enters crystal form and repairs crystallizer progress crystal form reparation, and finished product salt crystal is made further to be purified, crystal form is more mellow and fuller, the product appearance produced is neat, good fluidity, increased quality.
Description
Technical field
The present invention relates to a kind of refined crushing washing salt production methods of reparing process containing crystal form, belong to inorganic chemical industry work
Skill technical field.
Background technology
《Salt industry system reform》After new policies are implemented, existing edible salt kind cannot meet integration of production and marketing operations and market is more
The demand of sample.In terms of the Variety Salt of the developed countries such as the U.S., Japan, South Korea, Australia, according to different purposes, mouth
Taste, packaging, specification, particle and consumption habit subdivision, kind have thousand or more, and for demand in consumer's decentraction, development is more
Kind, seriation product salt will be the development trend in China edible salt market.
In the prior art, it is using solarization sea salt as raw material, through crushing, washing, dehydration, drying, screening etc. to crush washing salt
Process is process.Because solarization sea salt granularity is big, poor fluidity, such as solarization sea salt is without crushing, washing subtractive process, no
The standard of national purified salt cannot only be reached, can also make troubles to using, the edible range of sea salt is made to become smaller, limit sea salt
The market sale of product.Technological process used by the prior art mainly once to crush, wash twice, i.e., raw material salt by
Pulverizer is once crushed, after by desalinization of soil by flooding or leaching equipment carry out a spiral desalinization of soil by flooding or leaching machine washing wash, once (level-one or two-stage) is countercurrently washed
It obtains crushing washing salt after washing.Or separating twice washs three times, i.e., raw material salt is crushed twice by pulverizer, after by the desalinization of soil by flooding or leaching
Equipment carries out primary stirring trough washery, and spiral desalinization of soil by flooding or leaching machine washing is washed based on countercurrent washing etc., and in the powder desalinization of soil by flooding or leaching
Its in the entire production line uses different combinations matches, and product is made to reach the standard that country crushes washing salt.Grinders therein
Sequence also produces the incomplete product salts of crystal forms such as a large amount of tapered, needle-shaped, sheets, outside while keeping product salt granularity controllable
See it is irregular, sense organ and using it is upper experience it is poor.
Invention content
In order to solve the deficiencies in the prior art, the present invention proposes a kind of production method of powder desalinization of soil by flooding or leaching crystal form reparation；Using one
A or multiple crystallizing tanks of repairing make the salt slurry after crushing washing heat up in tank, make the angular edge of the crystal after crushing
Dissolving, then so that sodium chloride precipitation is filled up on defective crystal by cooling, keep crystal form more perfect.
The purpose of the present invention is obtain a kind of production method for the refined powder desalinization of soil by flooding or leaching being suitable for market different demands.This
Technical costs is cheap, and added value is high, and obtained refined product salt and particle product salt color is clean in vain, wherein refined product salt, chlorine
Change sodium content >=98.5%, whiteness >=75, granularity 0.15-4mm >=95%.Quality is high, meets different customers, using wide
It is general.
The present invention is realized by following specific technical solution：
A kind of refined crushing washing salt production method of the reparing process containing crystal form, includes the following steps：The step of spiral washing
Suddenly；The step of countercurrent washing；The step of crystal form is repaired；The step of centrifuge dewatering；The step of drying bed is dried；Two level
The step of turning sieve screening；The fine purifiation salt obtained after screening through plus iodine machine add iodine, again after color selector color sorting it is refined through being packaged to be
Crushing wash product salt；Wherein crystal form repair the step of include the steps that heating and cooling, and make temperature fall time with heat up when
Between be consistent.
Salt slurry after the spiral washing screens out the raw material salt of granularity≤0.4mm by vibration water sieve dehydration.
Macrogranule salt after spiral washing enters pulverizer through vibration water sieve and crushes, and salt falls into stirred tank and vibration water sieve after crushing
The salt slurry for the granularity qualification isolated mixes, and it is 1 that clear saturated brine, which is added, and adjusts solid-liquid volume ratio:3-1:5.
Further, in the step of crystal form is repaired, salt slurry is in crystal form obturator with the mixing speed of 10-40r/min
Under, it heats up 1-2.5 hours, until 50-95 DEG C stops heating；After being warming up to 50-95 DEG C, cools down 1-2.5 hours, make the temperature of salt slurry
Degree reaches room temperature.Agitating device in crystal form obturator is the double-deck paddle agitator, and is controlled equipped with variable frequency adjustment stirring motor
Rotating speed.
Further, in the step of crystal form is repaired, use septate heat transfer device when heating, cooling, inner coil pipe, chuck or
Outer coil form heating.
Further, the 1 of countercurrent washer discharge:1 salt slurry, be added refined saturated brine enter match stock tank, with
It is 1 that stock tank, which is configured to solid-liquid volume ratio,：3 salt slurry is transported to crystal form obturator with pump.
Further, in the step of crystal form is repaired, 50 DEG C are warming up to, the heating-up time is 90 minutes, then is slowly dropped to often
Temperature, temperature fall time are 90 minutes.
The refined crushing washing salt production method of present invention reparing process containing crystal form is advantageous in that, by optimizing work
Skill flow, and the crystal form prosthetic device for matching a set of dependable performance makes the product quality of purified salt reach NaCl >=98.5%,
Whiteness >=75, the salt qualities of granularity 0.15-4mm ranges account for total amount >=95%.Require granularity controllable according to user, mobility
Enhancing, quality-improving can reach the standard of purified salt, have simple production process, small investment, construction period be short, energy consumption less, at
This low advantage.
Specific implementation mode
The present invention includes the following steps：(1) raw material salt initially enters spiral desalinization of soil by flooding or leaching machine after metering, is added clear
Saturated brine carries out spiral washing (once washing)；(2) salt slurry after spiral washing is by vibration water sieve dehydration, and screens out
The raw material salt of granularity≤0.4mm；(3) macrogranule salt after spiral washing enters pulverizer through vibration water sieve and crushes, after crushing
Salt falls into stirred tank and is mixed with the salt slurry for vibrating the granularity qualification that water sieve is isolated, and clear saturated brine is added and adjusts solid-liquid
Volume ratio is 1:3-1:5；(4) salt slurry after adjusting enters adverse current desalinization of soil by flooding or leaching device and carries out countercurrent washing (secondary washing), countercurrent washing
The 1 of device discharge:1 salt slurry is added refined saturated brine and enters with stock tank, solid-to-liquid ratio (volume ratio) is being configured to stock tank
It is 1：3 salt slurry is transported to crystal form obturator with pump；(5) salt slurry enters crystal form reparation crystallizer, in stirring for 10-40r/min
It mixes under speed, heats up 1-2.5 hours, until 50-95 DEG C stops heating；After being warming up to 50-95 DEG C, dropped in crystal form obturator
Temperature cools down 1-2.5 hours, the temperature of salt slurry is made to reach room temperature；In this step, septate heat transfer device is used when heating, cooling,
The forms such as inner coil pipe, chuck or outer coil pipe heat, and temperature fall time is made to be consistent with the heating-up time；In crystal form obturator
Agitating device is the double-deck paddle agitator, and has variable frequency adjustment stirring motor rotating speed.(6) salt slurry through crystal form reparation is pumped to
Enter centrifuge dewatering after thickener thickening, being then sent into drying bed by screw conveyor is dried；(7) enter after drying
Two level turns sieve screening, and varigrained product is separated according to market demands；(8) the fine purifiation salt obtained after screening is through adding iodine machine to add
Iodine；The product after iodine is added to obtain purer product salt after color selector color sorting again；It is obtained after color sorting into packaging system is packaged
Product salt is washed to refined crushing.
Embodiment 1：
Using domestic high-quality solarization sea salt as raw material, the salt slurry solid-to-liquid ratio after crushing and washing is 1：1, it is added after refining
Saturated brine adjustment solid-to-liquid ratio be 1:3, charge temperature is 25 DEG C, and 50 DEG C are warming up in crystal form obturator, and the heating-up time is
90 minutes, then it is slowly dropped to room temperature, temperature fall time is 90 minutes, and dehydration, dry, screening, size distribution and the physics and chemistry of product refer to
Mark is as follows：
Raw material salt chemical component table %
| NaCl | MgCl2 | MgSO4 | GaSO4 | H2O |
| 96.85 | 0.21 | 0.12 | 0.24 | 2.58 |
Raw material salt size distribution
| Granularity | Accounting (%) |
| >=14 mesh | 5.5 |
| 14-18 mesh | 12.8 |
| 18-24 mesh | 33.4 |
| 24-35 mesh | 29.9 |
| 35-60 mesh | 12.4 |
| 60-100 mesh | 4.7 |
| ≤ 100 mesh | 1.2 |
| It is total | 100.0 |
Product salt chemical component table %
| NaCl | MgCl2 | MgSO4 | GaSO4 | H2O |
| 99.21 | 0.06 | 0.06 | 0.04 | 0.63 |
Product salt size distribution
| Granularity | Accounting (%) |
| >=14 mesh | 4.6 |
| 14-18 mesh | 13.5 |
| 18-24 mesh | 29.1 |
| 24-35 mesh | 34.1 |
| 35-60 mesh | 14.1 |
| 60-100 mesh | 3.7 |
| ≤ 100 mesh | 0.8 |
| It is total | 100.0 |
Embodiment 2：
Using domestic high-quality solarization sea salt as raw material, the salt slurry solid-to-liquid ratio after crushing and washing is 1：1, it is added after refining
Saturated brine adjustment solid-to-liquid ratio be 1:2.5, charge temperature is 25 DEG C, 50 DEG C is warming up in crystal form obturator, the heating-up time
It is 120 minutes, then is slowly dropped to room temperature, temperature fall time is 120 minutes, dehydration, dry, screening, the size distribution and reason of product
It is as follows to change index：
Raw material salt chemical component table %
| NaCl | MgCl2 | MgSO4 | GaSO4 | H2O |
| 96.85 | 0.21 | 0.12 | 0.24 | 2.58 |
Raw material salt size distribution
| Granularity | Accounting (%) |
| >=14 mesh | 5.5 |
| 14-18 mesh | 12.8 |
| 18-24 mesh | 33.4 |
| 24-35 mesh | 29.9 |
| 35-60 mesh | 12.4 |
| 60-100 mesh | 4.7 |
| ≤ 100 mesh | 1.2 |
| It is total | 100.0 |
Product salt chemical component table %
| NaCl | MgCl2 | MgSO4 | GaSO4 | H2O |
| 99.21 | 0.06 | 0.06 | 0.04 | 0.63 |
Product salt size distribution
| Granularity | Accounting (%) |
| >=14 mesh | 4.6 |
| 14-18 mesh | 13.5 |
| 18-24 mesh | 29.1 |
| 24-35 mesh | 34.1 |
| 35-60 mesh | 14.1 |
| 60-100 mesh | 3.7 |
| ≤ 100 mesh | 0.8 |
| It is total | 100.0 |
In the present invention, 50 DEG C are warming up in crystal form obturator, the heating-up time is 90-120 minutes, then is slowly dropped to often
Temperature, temperature fall time are 90-120 minutes, reach optimal state, by the method for the present invention products obtained therefrom grain size in 24-60 mesh
Shared ratio is obtained replying and be promoted, and technique effect is apparent.
Claims (8)
1. the refined crushing washing salt production method of a kind of reparing process containing crystal form, it is characterized in that including the following steps：Screwed washing
The step of washing；The step of countercurrent washing；The step of crystal form is repaired；The step of centrifuge dewatering；The step of drying bed is dried；
Two level turns the step of sieve screening；The fine purifiation salt obtained after screening is through adding iodine machine to add iodine, again after color selector color sorting through being packaged to be
Product salt is washed in refined crushing；The step of wherein crystal form is repaired includes the steps that heating and cooling, and makes temperature fall time and rise
The warm time is consistent.
2. the refined crushing washing salt production method of the reparing process according to claim 1 containing crystal form, it is characterized in that：Crystal form
In the step of reparation, salt slurry is in crystal form obturator under the mixing speed of 10-40r/min, to heat up 1-2.5 hours, until 50-95
DEG C stop heating；After being warming up to 50-95 DEG C, cools down 1-2.5 hours, the temperature of salt slurry is made to reach room temperature.
3. the refined crushing washing salt production method of the reparing process according to claim 1 containing crystal form, it is characterized in that：Spiral
Salt slurry after washing screens out the raw material salt of granularity≤0.4mm by vibration water sieve dehydration.
4. the refined crushing washing salt production method of the reparing process according to claim 1 containing crystal form, it is characterized in that：Spiral
Macrogranule salt after washing enters pulverizer through vibration water sieve and crushes, and salt falls into stirred tank and isolated with vibration water sieve after crushing
Granularity qualification salt slurry mixing, it is 1 that clear saturated brine, which is added, and adjusts solid-liquid volume ratio:3-1:5.
5. the refined crushing washing salt production method of the reparing process according to claim 1 containing crystal form, it is characterized in that：Countercurrently
The 1 of washer discharge:1 salt slurry is added refined saturated brine and enters with stock tank, is being configured to solid-liquid volume ratio with stock tank
1：3 salt slurry is transported to crystal form obturator with pump.
6. the refined crushing washing salt production method of the reparing process according to claim 1 containing crystal form, it is characterized in that：Crystal form
Agitating device in obturator is the double-deck paddle agitator, and controls rotating speed equipped with variable frequency adjustment stirring motor.
7. the refined crushing washing salt production method of the reparing process according to claim 1 or 2 containing crystal form, it is characterized in that：
In the step of crystal form is repaired, 50 DEG C are warming up to, the heating-up time is 90 minutes, then is slowly dropped to room temperature, and temperature fall time is 90 minutes.
8. the refined crushing washing salt production method of the reparing process according to claim 1 or 2 containing crystal form, it is characterized in that：
In the step of crystal form is repaired, septate heat transfer device, inner coil pipe, chuck or the heating of outer coil form are used when heating, cooling.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810227317.7A CN108323745A (en) | 2018-03-20 | 2018-03-20 | A kind of refined crushing washing salt production method of the reparing process containing crystal form |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810227317.7A CN108323745A (en) | 2018-03-20 | 2018-03-20 | A kind of refined crushing washing salt production method of the reparing process containing crystal form |
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|---|---|
| CN108323745A true CN108323745A (en) | 2018-07-27 |
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|---|---|---|---|---|
| JPH0986923A (en) * | 1995-09-20 | 1997-03-31 | Akou Kasei Kk | Spherical salt particle and its production |
| US20030012726A1 (en) * | 2000-01-12 | 2003-01-16 | Oh Sung Eun | Method for manufacturing pure salt |
| CN101229923A (en) * | 2007-01-22 | 2008-07-30 | 潘向东 | Novel technique for producing large-particle high-grade soft leonite from potassium mixed salt by hot crystallization |
| CN101234124A (en) * | 2008-03-06 | 2008-08-06 | 四川久大索贝斯日化有限责任公司 | Method of preparing crystallization physiotherapeutic salt |
| CN102396696A (en) * | 2010-09-15 | 2012-04-04 | 张兆骅 | Method for preparing refined natural nutrient salt |
| US20130164424A1 (en) * | 2010-06-18 | 2013-06-27 | Arctic Sea Salt | Production of low sodium salt with balanced mineral content |
| CN104261432A (en) * | 2014-09-06 | 2015-01-07 | 天津长芦汉沽盐场有限责任公司 | Production method of spherical edible refined salt |
| CN105293530A (en) * | 2015-11-02 | 2016-02-03 | 中盐工程技术研究院有限公司 | Crushed and washed salt production method and device |
| CN107162020A (en) * | 2017-06-20 | 2017-09-15 | 天津长芦汉沽盐场有限责任公司 | A kind of production method of food-grade potassium chloride |
| CN107616476A (en) * | 2016-07-14 | 2018-01-23 | 天津科技大学 | A kind of sheet eats the production method of purified salt |
-
2018
- 2018-03-20 CN CN201810227317.7A patent/CN108323745A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0986923A (en) * | 1995-09-20 | 1997-03-31 | Akou Kasei Kk | Spherical salt particle and its production |
| US20030012726A1 (en) * | 2000-01-12 | 2003-01-16 | Oh Sung Eun | Method for manufacturing pure salt |
| CN101229923A (en) * | 2007-01-22 | 2008-07-30 | 潘向东 | Novel technique for producing large-particle high-grade soft leonite from potassium mixed salt by hot crystallization |
| CN101234124A (en) * | 2008-03-06 | 2008-08-06 | 四川久大索贝斯日化有限责任公司 | Method of preparing crystallization physiotherapeutic salt |
| US20130164424A1 (en) * | 2010-06-18 | 2013-06-27 | Arctic Sea Salt | Production of low sodium salt with balanced mineral content |
| CN102396696A (en) * | 2010-09-15 | 2012-04-04 | 张兆骅 | Method for preparing refined natural nutrient salt |
| CN104261432A (en) * | 2014-09-06 | 2015-01-07 | 天津长芦汉沽盐场有限责任公司 | Production method of spherical edible refined salt |
| CN105293530A (en) * | 2015-11-02 | 2016-02-03 | 中盐工程技术研究院有限公司 | Crushed and washed salt production method and device |
| CN107616476A (en) * | 2016-07-14 | 2018-01-23 | 天津科技大学 | A kind of sheet eats the production method of purified salt |
| CN107162020A (en) * | 2017-06-20 | 2017-09-15 | 天津长芦汉沽盐场有限责任公司 | A kind of production method of food-grade potassium chloride |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Liping Inventor after: Li Shusheng Inventor after: Yang Yi Inventor after: Zhang Wan Inventor before: Liu Liping |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Shusheng Inventor after: Liu Liping Inventor before: Liu Liping Inventor before: Li Shusheng Inventor before: Yang Yi Inventor before: Zhang Wan |
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Application publication date: 20180727 |