CN1200879C - Method for producing salt from sea water - Google Patents
Method for producing salt from sea water Download PDFInfo
- Publication number
- CN1200879C CN1200879C CNB021561656A CN02156165A CN1200879C CN 1200879 C CN1200879 C CN 1200879C CN B021561656 A CNB021561656 A CN B021561656A CN 02156165 A CN02156165 A CN 02156165A CN 1200879 C CN1200879 C CN 1200879C
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- salt
- seawater
- revolving cylinder
- drying machine
- nozzle
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- Formation And Processing Of Food Products (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
A method for producing salt from seawater comprises scattering salt powder from a salt scattering nozzle 30 to the outer surface of a rotating drum 2 before spraying seawater from a nozzle 14. Scatter of the powder salt is done in a place just before the place to be sprayed with seawater. Thus, it is extremely easily and economically preventing a condition that calcium carbonate and calcium sulphate are separated from salt and firmly stick to the outer surface of a drum when bringing the salt to burnt salt.
Description
Technical field
The present invention relates to a kind of method of using revolving cylinder type drying machine, high productivity ground from seawater, to make high-quality salt.
Background technology
As the manufacture method of this salt, it is a kind of as No. 3077062 disclosed method of communique of Japanese Patent that the inventor once provided.This method is the internal communication of the 1st revolving cylinder type drying machine and the 2nd revolving cylinder type drying machine of same double-layered cylinder structure that makes the double-layered cylinder structure of cylinder body, the flame of the device of auto-combustion in the future is blown into the urceolus of the 1st revolving cylinder type drying machine and the spatial portion between inner core, internally urceolus is heated.Simultaneously also heat the urceolus of the 2nd revolving cylinder type drying machine internally on the limit, and the limit is to the outside surface winding-up seawater of the revolution urceolus of the 1st revolving cylinder type drying machine, makes moisture evaporation and concentrate.Salt solution after reclaiming this and concentrating, and, make moisture evaporation with the outside surface of its winding-up to the rotating urceolus of the 2nd revolving cylinder type drying machine, the salinity that invests this outer tube outer surface is peeled off.
Aforesaid method be by the 1st revolving cylinder type drying machine with seawater in case after concentrating, use the 2nd revolving cylinder type drying machine to manufacture so-called " burning salt " (refined salt of roasting) with spline structure, thus, can boost productivity, and thermo-efficiency is also good.
Yet, in this occasion, because the seawater that reclaims from the 1st revolving cylinder type drying machine forms enrichment stage, when manufacturing burning salt with the 2nd revolving cylinder type drying machine, because of making lime carbonate, heating separates with calcium sulfate etc., affixed with outer surface of cylinder (outside surface of urceolus) securely, can not peel off from outer surface of cylinder, the layer that forms thus is along with the extension meeting of time is thickeied gradually.Like this, exist and not only reduce productivity, also can make the problem of the downgrade of salt product.
For this reason, the object of the invention is, adopts a kind of extremely simple method, can prevent from economically to occur that lime carbonate and calcium sulfate etc. separate when burning salt and the state of affairs that is consolidated in outer surface of cylinder securely making.
Summary of the invention
The present invention is that a kind of outside surface winding-up seawater to the revolving cylinder that is being heated by inside makes its evaporation, then, the salinity that recovery invests this outside surface carries out the method that salt is made, it is characterized in that, in described method, before the outside surface winding-up seawater of revolving cylinder, spreading powder (food) salt.
According to the present invention, because seawater is sucked at spreading in powder (food) salt of revolving cylinder outside surface, under this state, carry out the heat drying of seawater, therefore, seawater can directly not contact with the outside surface of revolving cylinder, thereby the phenomenons affixed with outer surface of cylinder such as lime carbonate and calcium sulfate can not occur.
Effectively, carry out the spreading of powder (food) salt in the position, front of facing the seawater of jetting.The powder of spreading (food) salt then can be kept the homogeneity of quality if what use is powder (food) salt that reclaims behind the salinity of the outside surface that invests revolving cylinder.Effectively, when spreading powder (food) salt, winding-up concentrates in last operation to the seawater of revolving cylinder outside surface.Even but use the occasion do not carry out spissated seawater, also can prevent outside surface affixed of lime carbonate and calcium sulfate etc. and revolving cylinder.
The simple declaration of accompanying drawing
Fig. 1 is system's pie graph of the present invention's one example.
Fig. 2 is the summary sectional view of the same the 1st drying machine.
Fig. 3 is the summary sectional view of the 2nd drying machine.
Fig. 4 is system's pie graph of another example of the present invention.
Among the figure, 1 is the 1st revolving cylinder type drying machine, and 2 is the 2nd revolving cylinder type drying machine, 3 is revolving cylinder, and 3a is a urceolus, and 3b is an inner core, 4 is bearing, and 5 is sprocket wheel, and 6 is motor, 7 is sprocket wheel, and 8 is chain, and 9 is tubaeform portion, 10 is the combustion chamber, and 11 for linking tubaeform portion, and 12 is chimney, 13 are the sea water spray mist nozzle, and 14 are the brine spray nozzle, and 15 is stripper, 16 is sea container, and 17 is strumbox, and 18 is conveying pump, 19 is temperature sensor, and 20 for salt solution reclaims the chamber, and 21 is conveying pump, 22 is temperature sensor, 23 is worm conveyer, 24,25 are the evaporation withdrawer, and 30 are salt spreading nozzle.
Embodiment
Describe example of the present invention with reference to the accompanying drawings in detail.
Fig. 1, Fig. 2, Fig. 3 represent that the summary of the present invention's one example constitutes.Among Fig. 1, the 1st revolving cylinder type drying machine 1 and the 2nd revolving cylinder type drying machine 2 series connection shapes are arranged side by side.
Each drying machine 1,2 is by columnar metal system revolving cylinder (cylinder body) 3 supporting of will growing crosswise with freely rotating of the bearing 4 at its both ends, between sprocket wheel 5 by chain 8 volume being hung over an end periphery that is arranged at each revolving cylinder 3 and the sprocket wheel 7 of motor 6 sides, carry out the revolution driving of the direction of arrow by 6 pairs of revolving cylinders of motor 3.
Each revolving cylinder 3 has adopted the double-layered cylinder structure of being made up of urceolus 3a and inner core 3b respectively as shown in Figures 2 and 3, and the two ends of inner core 3b are closed, and the both ends open of urceolus 3a.One end of the 1st drying machine 1 is connected with thermal source 10 by tubaeform 9, and the revolving cylinder 3 of the 1st drying machine 1 will directly be blown into the spatial portion between urceolus 3a and the inner core 3b from the hot media (water vapor, flame, heated air etc.) that adds of thermal source 10.
Again, tubaeform 11 of the 1st drying machine 1 and the 2nd drying machine 2 pars intermedia by linking urceolus 3a and inner core 3b, interconnection, again, the reverse side of the 2nd drying machine 2 is connected with the chimney 12 that exhaust is used.
With the position of the periphery top subtend of the revolving cylinder 3 of the 1st drying machine 1, with the axis parallel shape of revolving cylinder 3 be provided with spray form and jet the sea water spray mist of the type of growing crosswise that seawater uses with nozzle 13.Again, with the position of the periphery top subtend of the revolving cylinder 3 of the 2nd drying machine 2, with the axis parallel shape of revolving cylinder 3 be provided with same spray form and jet and carry out the type of growing crosswise brine spray that the salt solution after seawater concentrates uses with nozzle 14 by the 1st drying machine 1.Nozzle 13,14 horizontal ground assortments have a plurality of jet holes.
Have again, in the 2nd drying machine 2, in front of the brinish after the seawater of jetting with nozzle 14 from brine spray concentrates, dispose the type of the growing crosswise salt spreading nozzle of using to outside surface spreading powder (food) salt of revolving cylinder 3 30.That is, this salt spreading, is arranged on than it more near near the direction opposite with revolving cylinder 3 turning direction with respect to brine spray nozzle 14 with nozzle 30.Again, than brine spray with nozzle 14 more near a side of the turning direction of revolving cylinder 3, dispose invest admittedly revolving cylinder 3 outside surfaces, salinity peels off the type of the growing crosswise stripper 15 of usefulness.This stripper 15 is owing to be to carry out salinity to peel off under the state that moisture evaporates as far as possible, therefore, preferably is configured in as far as possible the position away from the salt solution position of being jetted by nozzle 14.
Sea water spray mist at the 1st drying machine 1 is used in the nozzle 13, is stored in the sea container 16 from the seawater of marine taking-up is provisional, after being filtered by strumbox 17, is fed water by conveying pump 18.For can root the surface temperature of revolving cylinder 3 of a tree name the 1st drying machine 1, automatically regulate the seawater winding-up output of this nozzle 13, be blown into side configuration temperature sensor 19 adding hot media, conveying pump 18 (or magnetic valve) controlled automatically by the signal of this temperature sensor 19.Below the 1st drying machine 1, dispose salt solution and reclaim chamber 20.
In the 1st drying machine 1, seawater is jetted to just at the outside surface of rotating revolving cylinder 3 with nozzle 13 spray form ground from sea water spray mist, and this seawater is heated rapidly by revolving cylinder 3, with moisture evaporation, become the salt solution after concentrating, flow into salt solution by funnel 20a and reclaim chamber 20.
The salt solution that is recycled to salt solution recovery chamber 20 is fed water with nozzle 14 by the brine spray of conveying pump 21 to the 2nd drying machine 2.For can root the surface temperature of revolving cylinder 3 of a tree name the 2nd drying machine 2, automatically regulate the salt solution winding-up output of this nozzle 14, be blown into side configuration temperature sensor 22 adding hot media, conveying pump 21 (or magnetic valve) controlled automatically by the signal of this temperature sensor 22.Below the 2nd drying machine 2, dispose worm conveyer 23.
In the 2nd drying machine 2, salt solution is jetted to the outside surface of rotating revolving cylinder 3 with nozzle 14 spray form ground from sea water spray mist, but owing in front of it, locate, powder (food) salt uses nozzle 30 spreadings in the outside surface of revolving cylinder 3 from the salt spreading, therefore, absorbed by powder (food) salt of spreading from the salt solution of sea water spray mist in revolving cylinder 3 outside surfaces with nozzle 14 sprayings, heat rapidly by the metallic surface of revolving cylinder 3 simultaneously, with moisture evaporation, become burning salt, invest the outside surface of revolving cylinder 3.Then, on revolving cylinder 3, carry out drying, peel off by stripper 15 then, fall into worm conveyer 23 by funnel 23a and reclaim.Part salinity after the recovery can be used as from powder (food) salt of salt spreading with nozzle 30 spreadings and utilizes, and remaining major part is made with extra care as salt in not shown refinement treatment portion.
Above the 1st drying machine 1 and the 2nd drying machine 2, dispose the vapor recovery device 24,25 of row's steam that recovery forms by evaporation of seawater.
In above-mentioned equipment, from marine water intaking, be stored in seawater the sea container 16 after filtering by strumbox 17, the temperature of root a tree name the 1st drying machine 1 is regulated flow (reduce flow when temperature is low, increase flow when temperature is high) automatically, simultaneously from the outside surface spraying of nozzle 13 to the rotating revolving cylinder 3 of the 1st drying machine 1.With a large amount of moisture evaporation, by being reclaimed by evaporation withdrawer 24, seawater is concentrated and flows in the salt solution recovery chamber 20 on this revolving cylinder 3.
Be recycled to the salt solution that salt solution reclaims chamber 20 after concentrating, when the temperature of root a tree name the 2nd drying machine 2 is regulated flow automatically, from the outside surface spraying of nozzle 14 to the rotating revolving cylinder 3 of the 2nd drying machine 2.Because this spraying back salt solution is infiltrated spreading in powder (food) salt of the outside surface of revolving cylinder 3 at the place, front, therefore, can prevent because of heating the separating of the lime carbonate that causes and calcium sulfate etc., affixed rapidly.On the metallic surface of revolving cylinder 3, with the heating of the temperature more than 100 ℃, moisture evaporates salt solution in infiltration powder (food) salt quickly with powder (food) salt, and salt is divided into burning salt, is attached on the metallic surface.This salinity that adheres to after the drying, is peeled off by stripper 15 on the metallic surface, fall in the worm conveyer 23, by conveyance to refinement treatment portion.After being recycled to row's steam cooling of evaporation withdrawer 24,25, reclaim as fresh water.
In above-mentioned example, use 2 revolving cylinder type drying machines 1,2, generate after seawater is concentrated and burn salt, but also can omit enrichment process.Another example of the present invention shown in Figure 4 is exactly an example, is the form of having omitted the 1st drying machine 1 among Fig. 1.
Promptly, from marine water intaking, be stored in sea container 16 seawater after filtering by strumbox 17, the temperature of root a tree name drying machine 2 is regulated flow (reduce flow when temperature is low, increase flow when temperature is high) automatically, from nozzle 14 seawater is sprayed to the metallic surface of rotating revolving cylinder 3 simultaneously, and in its position, front, with powder salt spreading in the metallic surface of revolving cylinder 3, seawater is infiltrated wherein, the burning salt that will be created on by stripper 15 on the metallic surface of revolving cylinder 3 is peeled off, by worm conveyer 23 conveyances to refinement treatment portion.
The effect of invention
In sum, adopt the present invention, because at the powder (food) of spreading on the outer surface of revolving cylinder Salt has sucked the heat drying that carries out seawater under the state of seawater, therefore, seawater not can with revolving cylinder Outer surface directly contacts, thereby, available extremely simple method, prevent calcium carbonate and calcium sulfate economically The state of affairs affixed with outer surface of cylinder securely Deng separating.
As powder (food) salt of spreading, if use is after recovery invests the salinity of revolving cylinder outer surface Powder (food) salt, then can keep the homogeneity of quality.
Claims (5)
1. method of making salt from seawater makes its evaporation to the outside surface winding-up seawater of the revolving cylinder that is being heated by inside, then, recovery invests the salinity of this outer surface of cylinder, it is characterized in that, before the outside surface winding-up seawater of described revolving cylinder, spreading powder salt.
2. the method for making salt from seawater as claimed in claim 1 is characterized in that, carries out the spreading of powder salt in the position, front of winding-up seawater.
3. the method for making salt from seawater as claimed in claim 1 or 2 is characterized in that, as the powder salt of spreading, use be the powder salt that reclaims behind the salinity that invests the revolving cylinder outside surface.
4. the method for making salt from seawater as claimed in claim 1 or 2 is characterized in that, the seawater of winding-up to the revolving cylinder outside surface concentrated.
5. the method for making salt from seawater as claimed in claim 3 is characterized in that, the seawater of winding-up to the revolving cylinder outside surface concentrated.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001377334A JP3548963B2 (en) | 2001-12-11 | 2001-12-11 | Production of salt from seawater |
| JP2001377334 | 2001-12-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1425609A CN1425609A (en) | 2003-06-25 |
| CN1200879C true CN1200879C (en) | 2005-05-11 |
Family
ID=19185333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021561656A Expired - Fee Related CN1200879C (en) | 2001-12-11 | 2002-12-11 | Method for producing salt from sea water |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3548963B2 (en) |
| CN (1) | CN1200879C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3855238B2 (en) * | 2003-06-05 | 2006-12-06 | 田上食品工業株式会社 | Salt production equipment |
| CN103570042A (en) * | 2012-07-30 | 2014-02-12 | 陈庆元 | Energy saving technology for preparing salt by rapidly removing water in brine |
| JP5880482B2 (en) * | 2013-02-13 | 2016-03-09 | 菱田 新悟 | Distillation equipment for making drinking water from seawater and river water |
| CN115253334B (en) * | 2022-09-27 | 2023-01-06 | 长沙市惠瑞生物科技有限公司 | Low-temperature vacuum concentration device for plant extracts |
-
2001
- 2001-12-11 JP JP2001377334A patent/JP3548963B2/en not_active Expired - Fee Related
-
2002
- 2002-12-11 CN CNB021561656A patent/CN1200879C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003174855A (en) | 2003-06-24 |
| CN1425609A (en) | 2003-06-25 |
| JP3548963B2 (en) | 2004-08-04 |
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