KR20120109014A - Salt-concentration method of seawater for sun-dried salt manufacture - Google Patents

Abstract

PURPOSE: A salinity concentration method of sea water to obtain bay salt is provided to reduce the production time of the bay salt, and to concentrate massive amount of salt in the sea water in the narrow space. CONSTITUTION: A salinity concentration method of sea water to obtain bay salt comprises the following steps: pumping the sea water into a settling tank using a pumping unit(S100); settling the pumped sea water for 2-3 hours for removing foreign materials(S200); heating the sea water in a heating tank with a heater at the constant temperature(S300); and spraying the heated sea water into a spraying chamber using more than one spraying nozzle, and blowing wind to the sea water using a blower for concentrating the sea water(S400). The concentrated sea water is supplied into a salt farm. [Reference numerals] (26) Heating unit; (40) Blowing unit; (AA) Sea water; (BB) High-pressure pumping; (CC) Salinity concentrated sea water; (S100) Pumping process; (S100) First filtering process; (S200) Soaking process; (S200) Second filtering process; (S300) Heating process; (S400) Spraying process

Description

Salt-concentration method of seawater for sun-dried salt manufacture}

The present invention is a technique related to the salt concentration method of seawater for preparing sea salt by confining seawater in salt and evaporating water in the seawater by evaporation action by sunlight and wind. Previously, the pumping process and the precipitation process for removing the impurities contained in the seawater by pumping the seawater into the sedimentation tank, the heating process for heating the seawater from which the impurities have been removed to a predetermined temperature, and the inside of the injection chamber equipped with a blowing means By spraying with a spraying process to evaporate a part of the water contained in the large amount of seawater, it is possible to evaporate a part of the water contained in the seawater in a small area in a small area to concentrate the salt in the sea salt to make the salt salt in a short time It is about a method.

In general, humans must properly absorb salt that acts as a buffer to control the osmotic pressure inside and outside the human cells and maintain the proper alkalinity of body fluids. In addition, since the salt, which has a significant effect on the human body as described above, is absorbed by the human body through food, general food is cooked containing an appropriate amount of salt.

In addition, salts used for food are divided into artificial salts, which are artificially prepared and salts contained in about 3% by weight in seawater and concentrated and crystallized using sunlight and wind. 으로서) produced by evaporating the water of seawater for a long time in the salt field is divided into, and the natural salt prepared as described above not only serves to provide minerals such as calcium to the human body, but also to the body digestion of carbohydrates, fats and proteins Because it provides the human body with the minerals involved, it can also perform a very important function. The following is a representative prior art for the production of sun salt.

Korean Patent Laid-Open No. 10-2008-0006938 relates to a method for salting natural salts and a method for producing pale natural salts using the same. 1 precipitation step; The sedimented seawater is pumped to the primary evaporator to pass through 1 to 5 times of evaporation through 12 stages of evaporation, and the seawater adjusted to 12 degrees of salinity by the process of precipitation and evaporation is stored in 5 seas to precipitate insoluble matters. Second precipitation step; The seawater stored in the seawater No. 5 is transferred to the sea water four times, three times, two times, and the sea water once again, so that the seawater adjusted to 12 degrees of salinity is once again subjected to the salinity of 22 ~ 25 degrees by the 12 step precipitation and evaporation process. Making concentrated brine with 6, 7, 8, and 9 storage steps; Cleaning the crystallized paper from which the salt is determined with water; Feeding the concentrated brine stored in the seas 6, 7, 8, and 9 to 15 to 20 mm in thickness by means of a transfer-only pipe to the crystallized paper; Dyeing the concentrated and salted sun salt, which is determined by the sun's heat and wind for 9 hours from 7 am to 4 pm in the concentrated brine transferred to the crystallization; The floated natural salts are salted with an earthen cloth, and the sunken salts are salted at 28 degrees of salinity and stored and stored in a salt water tank. Each of them provides a method for preparing a natural salt comprising salt, low salt and high mineral content Although it is possible to achieve the effect, but the water evaporation step of the seawater to concentrate the salt is too complicated, the processing period is long, there is a problem that productivity is low, and continuous research and development is required.

The present invention has been made to improve the problems according to the salt concentration method of the seawater for manufacturing the salt of the sea according to the prior art, the salt of the sea salt prepared by the prior art simply by pumping a certain amount of seawater to the reservoir composed of the tidal flat, After sedimenting impurities contained in seawater, seawater from which impurities are removed is transferred to an evaporation place to increase the concentration of salts by evaporating moisture that occupies most of the seawater by evaporation by sunlight and wind. Since it was prepared by the method of producing the crystallized sun salt by moving it back to crystallization, crystallizing the salt by maintaining the concentration of about 3% by weight in seawater generally requires a lot of effort and time. It aims to provide a solution to this problem.

The present invention is to realize the desired object as described above,

A pumping step of pumping the seawater into the settling tank using the pumping means; A precipitation step of removing impurities by precipitating the seawater pumped into the precipitation tank for 2 to 3 hours or more; A heating step of heating the seawater to a predetermined temperature by introducing the seawater treated by the precipitation step into a heating tank equipped with heating means; The seawater treated by the heating process and heated to a predetermined temperature is injected into the injection chamber as one or more injection nozzles provided in the injection chamber, and the wind is applied to the seawater by blowing air to the seawater injected as a blowing means provided on one side of the injection chamber. A spraying step of concentrating the salt of the seawater by evaporating a certain amount of water contained; comprising, wherein the salted water is concentrated by the spraying process is pumped out of the spray chamber is configured to supply salt salt We present a salt concentration method for seawater.

According to an embodiment of the present invention, the salt concentration method of seawater for manufacturing the natural salt can more easily concentrate the salt contained in the seawater in a small amount compared to the prior art, and the seawater concentrated salt in a certain concentration in the sun and wind By supplying to the evaporator to further concentrate the salt by using a large amount of salt contained in the seawater in a small area as well as to provide an effect that significantly shortens the production time of the sun salt.

1 is a block diagram showing a salt concentration method of seawater according to an embodiment of the present invention.
Figure 2 is a block diagram showing a salt concentration method of seawater according to another embodiment of the present invention.
3 is a cross-sectional view showing a sedimentation tank in an embodiment of the present invention.
4 is a cross-sectional view showing a heating bath in an embodiment of the present invention.
5 is a cross-sectional view showing an injection chamber in an embodiment of the present invention.
6 is a cross-sectional view showing a blowing means in an embodiment of the present invention.
Figure 7 is a cross-sectional view showing the installation state of the heat medium water circulation pipe in the embodiment of the present invention.

The present invention confines seawater to salt, and evaporates the moisture in the seawater by evaporation by sunlight and wind to salt concentration of seawater for producing sun salt, by using the pumping means for pumping seawater to the settling tank (10) A pumping step (S100); A precipitation step (S200) of removing the impurities 11 by precipitating the seawater pumped into the settling tank 10 for 2 to 3 hours or more; A heating step (S300) of introducing the seawater treated by the precipitation step (S200) into a heating bath (20) equipped with a heating means (26) to heat the seawater to a predetermined temperature; The seawater treated by the heating process (S300) and heated to a predetermined temperature is injected into the injection chamber 30 as one or more injection nozzles 31 provided in the injection chamber 30, and on one side of the injection chamber 30. And a spraying step (S400) for concentrating the salt of seawater by evaporating a predetermined amount of water contained in the seawater by applying wind to the seawater sprayed as the blowing means 40 provided. The treated seawater concentrated salt is related to the salt concentration method of the seawater for manufacturing the natural salt which is configured to be pumped out of the injection chamber 30 to be supplied to the salt.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 7.

Specifically, the present invention as shown in Figure 3 in the Figure is a sedimentation tank 10 (conventional reservoir may be used) by using a pumping means such as a pump (natural water using the difference between tides only). The pumping step (S100) for pumping into) and the precipitation step (S200) for removing impurities 11 by precipitating the seawater pumped into the settling tank for 2 to 3 hours or more are solid impurities 11 included in the seawater. It is settled in the lower part of the sedimentation tank 10, the process for removing impurities suspended in the sea surface of the seawater trapped in the sedimentation tank 10, the precipitation time is a skilled person 2 to 3 depending on the amount of seawater or turbidity of seawater Adjustable freely over time.

In addition, the present invention further includes a primary filtration step (S100 ') for filtering the seawater pumped into the settling tank 10 as a filtration means having a filter before the precipitation step (S200), or after the precipitation step (S200) As a filtration means provided with a filter to further comprise a secondary filtration step (S200 ') for filtering the seawater drawn out to the heating tank 20, included in the seawater pumped into the settling tank 10 in the sea Bulky impurities are filtered through a filter such as a strainer in the primary filtration process (S100 '), or the seawater transferred from the settling tank 10 to the heating tank 20 as the secondary filtration process (S200') more cleanly. It is also possible to realize the effect of maintaining it.

At this time, the primary filtration process (S100 ') or the secondary filtration process (S200') may be further included, respectively, it will be obvious that all may be further included, the primary filtration process (S100 ') is seaweed contained in seawater Or to filter large impurities such as tree branches, the secondary filtration process (S200 ') is also a self-explanatory configuration to remove the fine impurities contained in the sea water transferred through the transfer pipe 50 in the settling tank 10 something to do.

In another aspect, the present invention comprises a heating step (S300) for introducing the seawater treated by the precipitation step (S200) to the heating tank 20 equipped with a heating means 26 to heat the seawater to a predetermined temperature, The process is a step of applying the thermal energy to heat the seawater to 30 ~ 50 ℃ to evaporate the moisture contained in the sea water more quickly, the heating tank 20 mounted on the heating means 26 used in the heating step (S300) It may be any configuration as long as it can apply thermal energy to the sea water, but as shown in FIG. 4 is provided with an inlet port 21 through which the seawater treated by the precipitation process (S200) is drawn in and the outlet 22 which draws out the heated seawater. A hollow body 24 having a heat medium number 23 embedded therein; A zigzag heating tube 25 impregnated in the heat medium water 23 and connecting the inlet 21 and the outlet 22 to transfer the seawater internally from the inlet 21 to the outlet 22; And a boiler which is a heating means 26 for heating the heat medium water 23.

Specifically, the inlet 21 is connected to the settling tank 10 through the transfer pipe 50 is a configuration for introducing the seawater into the heating tube 25 of the heating tank 20, the outlet 22 is heated It is a configuration for discharging the sea water heated in the pipe 25 to the injection chamber 30 below through a transfer pipe 50 connected to the outside of the heating tank 20.

In addition, the body 24 is embedded in the heat medium (23) that is heated by the heating means 26 in the hollow inside, it is impregnated in the heat medium (23) to receive the heat energy of the heat medium water 23 is internal Heating tube 25 for heating the seawater is connected to the inlet port 22 from the inlet port 21, it is composed of a zigzag shape of a material having excellent thermal conductivity is preferably configured to receive the maximum heat from the heat medium water 23 Do.

In connection with the above, the heat medium water 23 according to the present invention may be used as long as it is a structure capable of effectively supplying the heating tube 25 with heat energy transmitted from the heating means 26, such as water or heat medium oil. .

In addition, the heating means 26 for heating the heat medium water 23 in the heating tank 20 may also be used in any configuration, such as a low-cost firewood boiler, a solar boiler or a late-night electric boiler, etc. It is more preferable to use, and in the heating method of the heat medium water 23 using the heating means 26, the heating means 26 directly heats the heating tank 20, and the heat medium water 23 in the heating tank 20 is used. ) Is also possible, and the heating means 26 heats the second heat medium water and the heated second heat medium water is impregnated in the heat medium water 23 in the heating tank 20. May be used to heat the heat medium water 23.

In addition, the seawater heated to a predetermined temperature by the heating step (S300) of the present invention may be heated to any temperature if heated to a temperature above the normal temperature, but preferably heated to 60 ~ 90 ℃ in consideration of economical efficiency, the heating step By the spraying process (S400) to be processed after (S300) to realize the effect of effectively evaporating the water in the seawater even if the seawater is not heated to an excessively high temperature.

That is, in order to effectively evaporate water, thermal energy that can simplify water molecules by breaking the bond between water molecules constituting water and water molecules that evaporate from the surface of the water particles are removed from the surface of the water particles. The wind is required to lower the concentration, the present invention is a heating tank 20 of the heating step (S300) to apply a certain thermal energy to the seawater, the surface area of the water particles of the seawater through the injection device and the blower of the injection step (S400) By broadening the surface area by applying wind to the water particles having a larger surface area, and further activating the evaporation action, the heat medium 23 contained in the heating tank 20 is heated to 60 to 90 ° C. to be transferred from the inside of the heating tube 25. By heating the seawater to 30 ~ 50 ℃ it is possible to realize the effect that can minimize the economic cost for seawater heating.

More specifically, the injection process (S400) according to the present invention, as shown in Figure 5, the one or more injection nozzles 31 provided in the injection chamber 30 to the sea water treated in the heating step (S300) and heated to a predetermined temperature Spray into the injection chamber 30 and blow wind into the seawater injected as the blowing means 40 provided at one side of the injection chamber 30 to evaporate a certain amount of water contained in the seawater to concentrate the salt in the seawater. One or more injection nozzles 31 provided in the injection chamber 30 are connected to the outlet 22 of the heating bath 20 in the heating process S300 to transfer the seawater ( 50), any configuration can be used as long as it can spray seawater heated to a certain temperature to have small moisture particles (applicable to various sizes at the discretion of the person skilled in the art), and the injection chamber 30 Seawater sprayed inside At least one vent hole 32 for allowing the water particles to be sealed so as not to be influenced by the external environment and allowing the evaporated water to escape to the outside of the injection chamber 30, and the salt water-concentrated injection chamber (30) It will be apparent that the system includes a seawater discharge port 33 to allow discharge to the outside.

In addition, a predetermined injection force of the heated seawater injected by the injection nozzle 31 may be realized by a high pressure pump which may be provided outside the injection chamber 30, and the seawater suction force by the high pressure pump may It may be exerted with the conveying force of the seawater conveyed through the entire conveying pipe 50 and the heating tube 25 during the conveying to the settling tank 10, the heating tank 20 and the injection chamber 30.

In addition, the blowing means 40 provided in the injection chamber 30 to further activate the water evaporation action of the heated seawater injected into the injection chamber 30 by the injection nozzle 31 is outside the injection chamber 30. Any configuration may be used as long as the air is introduced into the injection chamber 30 so as to be applied to the seawater injected as wind, but the air filter 41 filtering the impurities contained in the air introduced as shown in FIG. 6. Wow; A radiator 42 configured to be adjacent to the air filter 41 to heat air filtered by the air filter 41 to a predetermined temperature; It is preferably configured to include; a blowing fan 43 for applying the air heated by the radiator 42 as the wind in the injection chamber 30.

That is, the air filter 41 is a configuration for filtering impurities contained in the air introduced from the outside of the injection chamber 30 to the inside, and in accordance with the judgment of those skilled in the art Kinds of things are available.

In addition, the radiator 42 is configured to reapply thermal energy to the seawater to heat the wind blown into the injection chamber 30 so that water can be easily evaporated from the injected seawater. It is also possible to configure the heat dissipation through the supply device, as shown in Figure 7 is configured to have a transfer path 44 for transferring the heat medium water 23 therein, the heat medium water circulation pipe 45 is provided with a pumping means By circulating the heat medium water 23 of the heating tank 20 to receive the heat energy of the heat medium water 23, the heat energy of the heat medium water 23 of the heating tank 20 is used in various ways. In addition, the effect of simplifying the device configuration of the injection process (S400) can be obtained.

The following is a preferred embodiment by the salt concentration method of seawater for the production of sun salt according to the present invention.

One. Pumping process

10 tons of seawater of 3% by weight is pumped into the settling tank using a pump.

2. Precipitation Process

The seawater inherent in the sedimentation tank is precipitated for 2 hours or more to precipitate impurities at the bottom of the sedimentation tank, and from time to time removes the impurities supported on the sea surface.

3. Heating process

1) The firewood boiler provided in the heating tank is operated to heat the water in the heating tank to maintain 75 ° C.

2) By operating the high pressure pump connected to the transfer pipe 50 connecting the heating tank and the injection chamber, the seawater contained in the settling tank is introduced into the heating tank through the transfer pipe.

3) The treated seawater introduced into the heating bath is transferred to the inside of the zigzag heating tube (direction from the inlet to the outlet) and heated to 40 ° C.

4. Injection process

1) 3) of the heating process and the sea water heated to 40 ℃ is injected into the injection chamber (2) to 3) of the heating process by the high pressure pump configured between the heating tank and the injection chamber and the present treatment is continuously Done).

2) The blower is operated to cause wind inside the spray chamber to evaporate the water in the sprayed seawater.

3) Pump 10% by weight of seawater accumulated in the lower part of the injection chamber into the evaporation basin outside the injection chamber by using a pump.

The salt concentration method of seawater according to the present invention constituted as described above has a higher concentration of seawater supplied to the evaporation basin compared to the conventional method for preparing sun salt, so that the seawater evaporates for water evaporation of seawater. Since the period imprisoned in the paper can be significantly shortened, it is possible to realize the effect of reducing the entire production period of sun salt.

The preferred embodiments of the present invention have been described above with reference to the present invention, and the present invention is not limited to the above-described embodiments, and those skilled in the art to which the present invention pertains through the above-described embodiments have the gist of the present invention. Various changes can be made without departing.

S100: Pumping process S100 ': Primary filtration process
S200: Precipitation Process S200 ': Secondary Filtration Process
S300: heating process S400: spraying process
10: sedimentation tank 11: impurities
20: heating tank 21: inlet
22: outlet 23: heat medium
24 body 25 heating tube
26 heating means 30 injection chamber
31: injection nozzle 32: vent hole
33: seawater outlet 40: blowing means
41: air filter 42: radiator
43: blower fan 44: transfer path
45: heat medium water circulation pipe 50: transfer pipe

Claims (5)

A pumping step (S100) of pumping seawater into the settling tank 10 by using a pumping means;
A precipitation step (S200) of removing the impurities 11 by precipitating the seawater pumped into the settling tank 10 for 2 to 3 hours or more;
A heating step (S300) of introducing the seawater treated by the precipitation step (S200) into a heating bath (20) equipped with a heating means (26) to heat the seawater to a predetermined temperature;
The seawater treated by the heating process (S300) and heated to a predetermined temperature is injected into the injection chamber 30 as one or more injection nozzles 31 provided in the injection chamber 30, and on one side of the injection chamber 30. And a spraying step (S400) for concentrating the salt of the seawater by evaporating a predetermined amount of water contained in the seawater by applying wind to the seawater sprayed as the blowing means 40 provided.
Salt water is concentrated in the injection process (S400) is concentrated salts of the seawater for salt production, characterized in that the pumping to the outside of the injection chamber 30 is configured to be supplied to the salt.
The method of claim 1, further comprising:
Precipitation step (S200),
As a filtration means provided with a filter before the precipitation process (S200) is heated as a filtration means provided with a filter after the primary filtration process (S100 ') or a precipitation process (S200) for filtering the seawater pumped into the precipitation tank (10). A method for concentrating salts in seawater for manufacturing a natural salt, characterized by further comprising any one or more filtration steps in the secondary filtration step (S200 ') for filtering the seawater drawn out into the tank (20).
The method of claim 1, further comprising:
The heating tank 20 of the heating step (S300),
A hollow body 24 having an inlet port 21 through which the seawater treated by the precipitation process S200 is introduced and an outlet port 22 through which heated seawater is drawn out, and having a heat medium number 23 embedded therein;
The zigzag heating tube 25 impregnated in the heat medium water 23 and connecting the inlet 21 and the outlet 22 to transfer seawater internally therein from the inlet 21 to the outlet 22. ;
The salt concentration method of the seawater for manufacturing the natural salt, characterized in that it comprises a; boiler that is a heating means (26) for heating the heat medium water (23).
The method of claim 1, further comprising:
Blowing means 40 of the injection step (S400),
An air filter 41 for filtering impurities contained in the air to be introduced;
A radiator 42 configured to be adjacent to the air filter 41 to heat air filtered by the air filter 41 to a predetermined temperature;
And a blowing fan (43) for applying the air heated by the radiator (42) to the inside of the injection chamber (30) as wind; salt concentration method of seawater for manufacturing the natural salt.
The method of claim 4;
The radiator 42 is
The heat medium water 23 of the heating bath 20 is circulated through the heat medium water circulation pipe 45 having a conveying path 44 configured to transfer the heat medium water 23 therein and having a pumping means. Method for concentrating salt in seawater for production of sun salt, characterized in that configured to receive the thermal energy of 23).

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