JP2010173872A - Method and apparatus for producing salt - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for producing salt capable of producing natural salt rich in mineral components by using the fountainhead of Obama hot spring, which is based on comparatively simple structure and is hygienic, efficient, at a low cost and environment-friendly. <P>SOLUTION: The apparatus is for producing salt using seawater, which is equipped with a tank 20 capable of storing hot spring water, a hot spring water circulation pool 30 installed to pour hot spring water into it and circulate, an evaporation pot 41 installed in the hot spring water circulation pool 30 in the state capable of supplying seawater and hot spring water, and a stirring means installed to be capable of stirring the liquid in the evaporation pot 41. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a salt making method and a salt making apparatus using seawater.

  Conventionally, various salt production methods using seawater are known.

  As one of them, for example, a salt production method using sunlight is known. In Japan today, most of the salt imported for food is sun salt. And most of the salt made in foreign countries is made in Oshioda. For this reason, there is a lot of contamination with mud in the salt, which causes sanitary problems. Therefore, in Japan, there are few cases where imported sun salt is used as edible food. Usually, after melting imported sun salt, rice cracker (boiled and precipitated to form salt) is used as purified salt, and this purified salt is used as food. It is used as

Moreover, it takes a considerable amount of time to make salt using only the sun. Therefore, as a conventionally known method, in order to shorten the manufacturing time, a method is known in which firewood from which trees are cut is burned to boil the brine. With this method, the production time can be shortened by using (burning) soot, but problems such as deforestation and CO ₂ emissions are caused. Specifically, when burning salt to make 1t of salt, about 2.15t of CO ₂ is emitted at most. This number (CO ₂ emissions) is the amount of CO ₂ that about 47,000 people are discharged to 1 month.

  Furthermore, as another salt production method, there is a method using an ion exchange membrane. The refined salt (chemical salt) produced using this ion exchange membrane is sodium chloride having a purity of 99.6%, and the mineral components that are considered good for the body are excluded. Therefore, in general, it is often used as a preservative.

  By the way, Obama Onsen in Nagasaki Prefecture is known as a scenic hot spring resort with a tradition of about 370 years. The spring quality of this Obama hot spring is a sodium-containing spring, the source temperature is said to be 105 degrees, and the amount of heat is said to be the best in the world. Obama hot spring has an abundance of 8,000 tons per day and is characterized by a moist feel that includes salt. Obama Onsen boasts such an abundance, but currently 35% of the abundant hot spring water is discharged into the sea unused.

JP 11-196814 A

  As described above, various salt production methods according to the prior art are known, but these methods have several problems.

  The salt production method using the sun requires a lot of salt production time, and it is difficult to carry out efficient salt production. In addition, since it depends on the weather, it is difficult to carry out planned and efficient salt production. Furthermore, as described above, there is a possibility of contamination with mud or the like in the process of salt production, so that there is a sanitary problem.

As described above, the salt production method in which the brine is boiled by burning firewood or the like has problems such as deforestation and CO ₂ emission. In addition, since fuel such as soot is required, there is an economic problem (cost increase) in that fuel-related costs are generated.

  In the salt production method using an ion exchange membrane, since the obtained salt is sodium chloride having a purity of 99.6%, there is a problem that it is not possible to obtain a salt with abundant mineral components.

  On the other hand, there was a demand for effective use of hot spring water discharged to the sea without being used.

  Accordingly, the present invention has been made to solve the above-described problems of the prior art, and uses a source of Obama hot springs, based on a relatively simple configuration, and is hygienic, efficient, and low-cost. It is an object of the present invention to provide a salt production method that is easy to produce and can produce a natural salt-rich natural salt. Further, the present invention has been made to solve the above-described problems of the prior art, and uses a source of Obama hot springs, based on a relatively simple configuration, and is hygienic, efficient, and low-cost. It is an object of the present invention to provide a salt making apparatus that can produce a natural salt rich in mineral components that is gentle to the environment.

  The present invention has been made in order to solve the above-mentioned problems, and is a salt production method for producing salt using seawater, wherein a hot spring water circulation step is performed in which hot spring water is poured into the first region and circulated. A seawater supply step for supplying seawater into a second region provided in the region, a hot spring water supply step for supplying hot spring water into the second region, and agitation of the seawater and hot spring water in the second region It is characterized by comprising a stirring step and an evaporation step for evaporating the water of the brine obtained through the stirring step.

  According to such a configuration, as the heat source when boiling the seawater supplied into the second region or the mixed liquid of seawater and hot spring water, ) Is used, it is hygienic, efficient, low cost, environmentally friendly, and can produce salt. In other words, since it is not a salt production method using only the sun, it is possible to carry out a planned and efficient salt production regardless of the weather or the like. In addition, since no fuel such as firewood is required to boil the brine, there is no cost associated with fuel. Furthermore, according to such a structure, since salt is manufactured in said 2nd area | region (for example, iron pots etc.), mud etc. do not mix in the manufactured salt. Moreover, according to such a structure, the hot spring water which was discharged | emitted to the sea unused can be utilized effectively. Furthermore, according to such a structure, since the liquid mixture of seawater and hot spring water is boiled, natural salt rich in mineral components and umami can be produced.

  The salt production method according to the present invention includes a hot spring water storage step of storing the hot spring water in a tank, and the hot spring water is poured from the tank into the first region in the hot spring water circulation step. preferable.

  According to this preferred configuration, the hot spring water that springs from the ground is temporarily stored in the tank, and the hot spring water is poured from the tank into the first region. Therefore, the temperature and flow rate are controlled to predetermined conditions. Thus, the hot spring water can be supplied efficiently. That is, the hot spring water that self-spouts has a strong momentum and pressure fluctuations are likely to occur. Thus, when the hot spring water that self-spouts is stored in the tank, while maintaining the temperature at a constant pressure (water pressure), The hot spring water can be supplied into the first region.

  Furthermore, in the salt manufacturing method concerning this invention, after the said seawater in said 2nd area | region after the said seawater supply process crystallizes, the structure by which the said hot spring water supply process is performed is preferable.

  According to this preferred configuration, in the salt production process, it is easy to make “brine” with a concentration suitable for use in cooking, and it is relatively easy to adjust the “brine” concentration according to the request of a chef or the like. it can.

  Moreover, in the salt manufacturing method concerning this invention, after the said seawater supply process, after the salt concentration of the said seawater in said 2nd area turns into predetermined concentration, the structure by which the said hot spring water supply process is performed is preferable. Specifically, for example, a configuration in which the hot spring water supply process is performed after the salt concentration of the seawater in the second region is in the range of 15% to 20% is preferable.

  According to this preferable configuration, it is possible to produce a salt having large crystals. That is, it is possible to make a salt having a size (crystal size) that is easy to use for grilled meat or rice balls.

  The present invention has been made in order to solve the above-mentioned problems, and is a salt production method for producing salt using seawater, wherein a hot spring water circulation step is performed in which hot spring water is poured into the first region and circulated. It is characterized by comprising a brine supply process for supplying brine to a second area provided in the area, and an evaporation process for evaporating the water of the brine in the second area.

  According to such a configuration, since the hot spring water in the first region (about 105 degrees hot spring water) is used as a heat source when boiling the brine supplied into the second region, hygiene The salt can be produced efficiently, efficiently and at low cost and is environmentally friendly. That is, as described above, since it is not a salt production method using only the sun, planned and efficient salt production can be performed regardless of the weather or the like. In addition, since no fuel such as firewood is required to boil the brine, there is no cost associated with fuel. Furthermore, according to such a structure, since salt is manufactured in said 2nd area | region (for example, iron pots etc.), mud etc. do not mix in the manufactured salt. Moreover, according to such a structure, the hot spring water which was discharged | emitted to the sea unused can be utilized effectively. Furthermore, according to such a structure, since the liquid mixture of seawater and hot spring water is boiled, natural salt rich in mineral components and umami can be produced. Moreover, since it is the salt-making method which supplies the brine which blended seawater and hot spring water beforehand to said 2nd area | region, adjustment of salt concentration can be performed easily.

  Moreover, in the salt manufacturing method concerning this invention, it is preferable that the said evaporation process is the structure which has a hot spring heat evaporation process using hot spring heat, and a solar heat evaporation process using solar heat.

  According to this preferable configuration, a sanitary, efficient and environmentally friendly method for producing a salt can be obtained by performing the hot spring thermal evaporation step. Further, since it is not a salt making method using only the sun, planned and efficient salt making can be performed regardless of the weather or the like. Furthermore, since no fuel such as firewood is required when boiling the brine, there is no fuel-related cost, and cost reduction can be realized. Moreover, a salt with higher dryness can be obtained by performing the said solar thermal evaporation process. In addition, according to the present invention, since the solar thermal evaporation process is performed after the hot spring thermal evaporation process, compared with the conventional salt production method using only the sun, more systematic and efficient. A salt making method can be obtained.

  The present invention has been made in order to solve the above-described problem, and is a salt making apparatus that makes salt using seawater, and is provided with a first region in which hot water is poured and circulated, and seawater and hot spring water. And a second region provided in the first region in a state where it can be supplied.

  According to such a configuration, the second region is provided in the first region, and the first region is used as a heat source when boiling a mixed liquid of seawater and hot spring water supplied in the second region. Since the inner hot spring water (about 105 degrees hot spring water) is used, a salt production apparatus capable of producing salt can be obtained that is hygienic, efficient, low in cost and friendly to the environment. That is, according to this salt making apparatus, salt can be produced systematically and efficiently regardless of the weather or the like. In addition, according to this salt making apparatus, fuel such as firewood is not required when boiling water is boiled, so there is no fuel cost. Furthermore, according to this salt making apparatus, since salt is manufactured in said 2nd area | region (for example, iron pots etc.), mud etc. do not mix in the manufactured salt. Moreover, according to this salt manufacturing apparatus, the hot spring water which was discharged | emitted to the sea unused can be utilized effectively. Furthermore, according to this salt making apparatus, since a mixed liquid of seawater and hot spring water is boiled, a natural salt rich in mineral components and umami can be obtained.

  Moreover, in the salt manufacturing apparatus concerning this invention, it is preferable that it is the structure which has a tank which can store hot spring water.

  According to this preferable configuration, the hot spring water that springs from the ground can be temporarily stored in the tank. According to such a configuration, since the hot spring water is poured from the tank into the first region, the hot spring water can be efficiently supplied by controlling the temperature and flow rate to predetermined conditions. That is, the hot spring water that spouts has a strong momentum, and pressure fluctuations are likely to occur. In this way, with the configuration having the tank for storing the hot spring water that spouts, while maintaining the temperature at a constant pressure (water pressure), The hot spring water can be supplied into the first region.

  According to the present invention, using a source of Obama hot spring, based on a relatively simple configuration, it is possible to produce a natural salt rich in mineral components, hygienic, efficient, low-cost, environmentally friendly, A salt making method can be obtained. In addition, according to the present invention, it is possible to produce natural salt rich in mineral components that is hygienic, efficient, low-cost, environmentally friendly, using the source of Obama Onsen, based on a relatively simple configuration. In addition, a salt making apparatus can be obtained.

BRIEF DESCRIPTION OF THE DRAWINGS The schematic of the salt making apparatus comprised so that realization of the salt making method concerning embodiment of this invention was realizable is shown. It is the schematic of the hot spring circulation pool which comprises the salt manufacturing apparatus shown in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. By the way, in the salt production method according to this embodiment to be described later, hot spring water and seawater are used, but these hot spring water and seawater naturally have places and components suitable for drinking. Limited to. If the pumped state is not suitable for drinking, it is necessary to apply some treatment to both hot spring water and seawater to make it suitable for drinking. Hereinafter, in the present embodiment, a case of using hot spring water and seawater suitable for drinking will be described unless otherwise specified.

<First embodiment>
FIG. 1 is a schematic view of a salt making apparatus configured to be able to implement the salt making method according to the first embodiment of the present invention. Moreover, FIG. 2 shows the schematic of the hot spring water circulation pool which comprises the salt manufacturing apparatus shown in FIG.

  As shown in FIG. 1, the salt making apparatus according to the present embodiment includes a pumping means 10 for pumping hot spring water from a source spring 11, a tank 20 for temporarily storing hot spring water pumped by the pumping means 10, and the tank 20 The hot spring water circulating pool 30 (corresponding to the “first region” of the present invention) that circulates and uses hot spring water supplied from the tank 20 and the salt obtained in the hot spring water circulating pool 30 are used to dry in the sun. It is comprised using the sun drying house 50 grade | etc.,.

  The pumping means 10 according to the present embodiment is provided at a predetermined location in order to pump up the Obama hot spring, which is said to have the world's highest amount of heat, and the present inventors use the Obama hot spring having the world's highest amount of heat. It was possible to produce natural salt rich in mineral ingredients and delicious. As the pumping means 10, an apparatus used for a general hot spring can be used.

  The tank 20 is configured to be able to temporarily store hot spring water pumped up by the pumping means 10. In addition, the wall surface portion of the tank 20 has a heat insulating structure so as to prevent the temperature drop of the stored hot spring water as much as possible. Specifically, a heat insulating material is provided between the inner wall surface and the outer wall surface of the tank 20. Note that since the temperature of the hot spring water does not easily decrease unless it comes into contact with air, the tank 20 may have a structure having a simple wall surface made of iron or the like.

  As shown in FIG. 1, the hot spring water circulation pool 30 is configured to be able to supply hot spring water stored in the tank 20. The hot spring water circulation pool 30 is more specifically configured as shown in FIG.

  As shown in FIG. 2, the hot spring water circulation pool 30 according to the present embodiment is configured so that the hot spring water supplied from the tank 20 can be circulated, and the pool main body portion 31 and the like. A hot spring water supply pipe 32 provided for supplying hot spring water, a seawater supply pipe 33 provided for supplying seawater to an evaporating pot 41 (corresponding to the “second region” of the present invention) described later, It is configured using a drainage discharge pipe 34 and the like provided for appropriately discharging hot spring water or the like (drainage) circulated and used in the pool main body 31.

  As shown in FIGS. 1 and 2, a plurality of evaporating pots 41 are provided in the pool main body 31 so as to be substantially floating in the hot spring water supplied to the pool main body 31. As shown in these drawings, in the present embodiment, the six evaporating pots 41 are provided in the pool main body 31 in a floating state. Here, the “floating state” refers to a state in which at least a part of the bottom surface portion of the evaporating pot 41 is provided on the bottom portion of the pool main body portion 31 regardless of whether it is fixed or not fixed. In the present embodiment, the evaporating pot 41 is provided in a floating state in the hot spring water of the pool main body 31 in order to appropriately circulate and contact the hot spring water to the bottom surface of the evaporating pot 41. In the present embodiment, since at least a part of the bottom surface of the evaporation pot 41 only needs to be in a non-contact state with the bottom of the pool body 31, the bottom portion of the evaporation pot 41 has a leg portion as necessary. Etc. may be provided. Thus, if the evaporating pot 41 is provided in a state of floating in the hot spring water of the pool main body 31, effective heat exchange is performed between the hot spring water and the evaporating pot 41 (the liquid described later). be able to.

  Although not shown in FIGS. 1 and 2, the salt making apparatus according to the present embodiment has a stirring means for stirring a liquid (described later) in the evaporation pot 41. Yes. Examples of the stirring means include a handle and a stirring blade. These stirring means may be manually operated or may be configured to automatically rotate and the like.

  The sun drying house 50 is provided to further dry the salt obtained in the evaporating pot 41 in the hot spring water circulation pool 30 to the sun. In the salt production method according to the present embodiment, it is possible to provide the salt obtained in the evaporating kettle 41 as one product, and the salt obtained in the evaporating kettle 41 is supplied to the sun drying house 50. It is also possible to provide the salt as a single product after being transferred and further subjected to drying treatment in the sun. As the sun-dried house 50, a house constructed using a translucent material such as vinyl or glass used in general agriculture or the like can be used. The salt placement place in the sun drying house 50 is kept in a hygienic state so that mud and the like are not mixed.

  Therefore, for example, the salt mounting location of the sun-drying house 50 is preferably a room that is not affected by outside air and has good air permeability. Moreover, it is preferable that the salt mounting place and the ground in the vicinity thereof are hardened with cement or the like and constantly moistened so as not to be affected by dust on the ground. Further, when the salt is transferred to the sun drying house 50, the crystallized salt is made thin and flat in a plastic case. The distance between the cases is, for example, about 30 cm in the vertical direction and about 10 cm in the horizontal direction. These intervals can be appropriately changed in consideration of ease of work.

  The salt making apparatus according to the present embodiment is configured as described above, and the salt is manufactured by the following method based on the configuration. Hereinafter, a specific salt production method will be described with reference to FIGS. 1 and 2.

  First, in the salt production method according to the present embodiment, the hot spring water pumped from the source spring 11 by the pumping means 10 is stored in the tank 20 (corresponding to the “hot spring water storage step” of the present invention). In the salt production method according to the present embodiment, the configuration in which hot spring water is temporarily stored in the tank 20 is that the hot spring water that is self-spouting has a strong momentum, and when the hot spring water is directly supplied, a certain amount of water This is because it is difficult to supply hot spring water at (pressure).

  Next, in the present embodiment, in a state in which a predetermined amount of water and temperature (75 degrees or more) are maintained, the hot spring water supply pipe 32 is connected to the hot spring water circulation pool 30 (the pool main body 31 forming the hot spring water circulation pool 30). Hot spring water is supplied. In this way, the hot spring water supplied from the tank 20 through the hot spring water supply pipe 32 is circulated in the hot spring water circulation pool 30 under a predetermined temperature condition (corresponding to the “hot spring water circulation process” of the present invention). . In the present embodiment, for example, the hot spring water supply pipe 32 connected to the tank 20 with respect to the pool main body 31 so that the hot spring water temperature in the pool main body 31 is in the range of 70 degrees to 90 degrees. Hot spring water is supplied from. Moreover, it is more preferable to control the hot spring water temperature in the pool main body 31 to 75 degrees or more. When the hot spring water temperature in the pool main body 31 is lower than 70 degrees, a lot of time is required until the salt is produced. On the other hand, if it is the temperature range mentioned above, a salt can be crystallized from seawater in a comparatively short time. In addition, in order to adjust the temperature of the hot spring water in the pool main-body part 31, the discharge process of the hot spring water (drainage) using the waste_water | drain discharge piping 34 is performed as needed.

  Next, in this embodiment, seawater is supplied via the seawater supply pipe 33 to the evaporation kettle 41 floated in the hot spring water of the hot spring water circulation pool 30 (the pool main body portion 31) (this book Equivalent to the “seawater supply step” of the invention). The “seawater” supplied here is the seawater pumped up by boring the seabed where the water flowing from Unzen meets seawater.

  Seawater supplied into the evaporating pot 41 in the seawater supply process is heated by hot spring water (hot spring heat) in the pool main body 31, and the water in the seawater evaporates. In the present embodiment, this heating evaporation increases the salt concentration in the evaporation pot 41 and the seawater crystallizes, and then the hot spring water is supplied into the evaporation pot 41 (the “hot spring water supply” of the present invention). Equivalent to “process”). In this hot spring water supply process, it is preferable to supply hot spring water having a temperature of 50 ° C. or higher. The reason why hot spring water of 50 ° C. or more is supplied in this way is that when hot spring water having a temperature lower than 50 ° C. is supplied, it takes a long time to crystallize the salt. That is, in the present embodiment, hot spring water of 50 ° C. or more is supplied in order to efficiently perform the work up to the crystallization of the salt (in order to shorten the time from melting to crystallization).

  Next, after the hot spring water supply step, the liquid in the evaporation pot 41 is stirred by the stirring means (corresponding to the “stirring step” of the present invention). Then, the brackish water in the evaporating pot 41 obtained in the stirring step is further heated by using hot spring water (hot spring heat) circulating in the pool main body 31, and the water of the brackish water in the evaporating pot 41. (Equivalent to the “evaporation step” and “hot spring thermal evaporation step” of the present invention).

  In the course of this evaporation step, the salt concentration of the brine reaches 15% to 20% can be used as a seasoning as it is. That is, this brine can be used as it is as a seasoning as needed. Brine made only from seawater is usually too hot to be suitable as a seasoning. However, according to the present embodiment, the umami component is increased by mixing the hot spring water and seawater, and brine suitable for use as a seasoning can be obtained.

  In the present embodiment, the evaporation process described above is continued, and the brine in the evaporation pot 41 is further heated using hot spring water (hot spring heat) circulating in the pool main body 31 to evaporate the evaporation pot. The water of the brine in 41 is evaporated (equivalent to the “evaporation process” and “hot spring heat evaporation process” of the present invention). Thus, when the brine is further evaporated with hot spring water, salt crystals are obtained in the evaporation pot 41.

  Next, the salt crystals obtained in the evaporation kettle 41 are transferred to the sun drying house 50. The sun-dried house 50 is provided with a salt placement location (not shown) that is maintained in a hygienic state, and the transferred salt crystals are placed at the salt placement location. . In the present embodiment, a salt crystal is placed at a salt placement location in the sun-drying house 50, and heat treatment using solar heat is performed on the salt crystal to evaporate moisture in the salt crystal. (Corresponding to “evaporation step” and “solar heat evaporation step” of the present invention).

  As for the evaporation step when producing the salt, it is possible to carry out evaporation treatment using hot spring heat until the end, but as shown in this embodiment, if the solar heat evaporation step is performed after the hot spring heat evaporation step, bittern A flavorful natural salt with no ingredients and increased umami ingredients can be obtained.

  Now, in this embodiment, salt is manufactured based on the manufacturing apparatus and manufacturing method mentioned above. Hereinafter, the operational effects resulting from these characteristic manufacturing apparatuses and manufacturing methods will be described in detail.

  The salt production method using seawater according to the present embodiment includes a hot spring water circulation process in which hot spring water is poured into the hot spring water circulation pool 30 and circulated, and seawater that supplies seawater to an evaporation kettle 41 provided in the hot spring water circulation pool 30. A supply step, a hot spring water supply step for supplying hot spring water into the evaporation kettle 41, a stirring step for stirring the seawater and hot spring water in the evaporation kettle 41, and the water of the brine obtained through this stirring step is evaporated. And an evaporation step.

  According to such a configuration, the hot spring water in the hot spring water circulation pool 30 (about 105 degrees hot spring water) is used as a heat source when boiling the mixed liquid of seawater and hot spring water supplied into the evaporation kettle 41. Therefore, it is hygienic, efficient, low-cost, environmentally friendly, and can produce salt. In other words, since it is not a salt production method using only the sun, it is possible to carry out a planned and efficient salt production regardless of the weather or the like. In addition, since no fuel such as firewood is required to boil the brine, there is no cost associated with fuel. Furthermore, according to such a structure, since salt is manufactured in the evaporation pot 41 (for example, iron pot etc.), mud etc. do not mix in the manufactured salt. Moreover, according to such a structure, the hot spring water which was discharged | emitted to the sea unused can be utilized effectively. Furthermore, according to such a structure, since the liquid mixture of seawater and hot spring water is boiled, natural salt rich in mineral components and umami can be produced.

  Moreover, the salt production method according to the present embodiment includes a hot spring water storage step of storing hot spring water in the tank 20, and is configured to flow hot spring water from the tank 20 into the hot spring water circulation pool 30 in the hot spring water circulation step. ing.

  According to such a configuration, the hot spring water that springs from the ground is temporarily stored in the tank 20, and the hot spring water is poured from the tank 20 into the hot spring water circulation pool 30, so the temperature and flow rate are controlled to predetermined conditions. And hot spring water can be supplied efficiently. That is, the hot spring water that spouts has a strong momentum and pressure fluctuations are likely to occur. Thus, if the hot spring water that spouts is stored in the tank 20 as described above, the hot spring water is maintained at a constant pressure (water pressure) while maintaining the temperature. Hot spring water can be supplied into the water circulation pool 30.

<Second embodiment>
Next, a second embodiment of the present invention will be described. The salt production apparatus configured to realize the salt production method according to the second embodiment basically has the same configuration as the apparatus described in the first embodiment. The difference between the present embodiment and the first embodiment is a part of the salt production method. Therefore, in the following, a specific description of the apparatus is omitted, and description will be made mainly on parts different from the first embodiment. Parts not described here are basically the same as those in the first embodiment.

  The salt making apparatus according to the present embodiment is configured as shown in FIGS. 1 and 2, and salt is manufactured by the following method based on the configuration. Hereinafter, a specific salt production method will be described with reference to FIGS. 1 and 2.

  In the salt production method according to the present embodiment, the hot spring water pumped from the source spring 11 by the pumping means 10 is stored in the tank 20 (corresponding to the “hot spring water storage step” of the present invention). In the salt production method according to the present embodiment, the configuration in which hot spring water is temporarily stored in the tank 20 is that the hot spring water that is self-spouting has a strong momentum, and when the hot spring water is directly supplied, a certain amount of water This is because it is difficult to supply hot spring water at (pressure).

  Next, in the present embodiment, in a state in which a predetermined amount of water and temperature (75 degrees or more) are maintained, the hot spring water supply pipe 32 is connected to the hot spring water circulation pool 30 (the pool main body 31 forming the hot spring water circulation pool 30). Hot spring water is supplied. In this way, the hot spring water supplied from the tank 20 through the hot spring water supply pipe 32 is circulated in the hot spring water circulation pool 30 under a predetermined temperature condition (corresponding to the “hot spring water circulation process” of the present invention). . In the present embodiment, for example, the hot spring water supply pipe 32 connected to the tank 20 with respect to the pool main body 31 so that the hot spring water temperature in the pool main body 31 is in the range of 70 degrees to 90 degrees. Hot spring water is supplied from. Moreover, it is more preferable to control the hot spring water temperature in the pool main body 31 to 75 degrees or more. When the hot spring water temperature in the pool main body 31 is lower than 70 degrees, a lot of time is required until the salt is produced. On the other hand, if it is the temperature range mentioned above, a salt can be crystallized from seawater in a comparatively short time. In addition, in order to adjust the temperature of the hot spring water in the pool main-body part 31, the discharge process of the hot spring water (drainage) using the waste_water | drain discharge piping 34 is performed as needed.

  Next, in this embodiment, seawater is supplied to the evaporating pot 41 floating in the hot spring water of the hot spring water circulation pool 30 (the pool main body part 31) (via the seawater supply pipe 33). Equivalent to the “seawater supply step” of the invention). The “seawater” supplied here is the seawater pumped up by boring the seabed where the water flowing from Unzen meets seawater.

  Seawater supplied into the evaporating pot 41 in the seawater supply process is heated by hot spring water (hot spring heat) in the pool main body 31, and the water in the seawater evaporates. By this heating and evaporation, the salinity concentration in the evaporating pot 41 rises and reaches a predetermined salinity concentration, and then hot water is supplied into the evaporating pot 41 (corresponding to the “hot spring water supplying process” of the present invention). ). Specifically, the hot spring water supply process is performed after the salt concentration of the seawater in the evaporating pot 41 falls within the range of 15% to 20%. With such a configuration, it is possible to produce a salt with large crystals. That is, according to this embodiment, a salt having a size (crystal size) that can be easily used for grilled meat, rice balls, or the like can be made relatively easily.

  Moreover, in the hot spring water supply process according to this embodiment, it is preferable to supply hot spring water having a temperature of 50 degrees or more. The reason why hot spring water of 50 ° C. or more is supplied in this way is that when hot spring water having a temperature lower than 50 ° C. is supplied, it takes a long time to crystallize the salt. That is, in the present embodiment, hot spring water of 50 ° C. or more is supplied in order to efficiently perform the work up to the crystallization of the salt (in order to shorten the time from melting to crystallization).

  Next, after the hot spring water supply step, the liquid in the evaporation pot 41 is stirred by the stirring means (corresponding to the “stirring step” of the present invention). Then, the brackish water in the evaporating pot 41 obtained in the stirring step is further heated by using hot spring water (hot spring heat) circulating in the pool main body 31, and the water of the brackish water in the evaporating pot 41. (Equivalent to the “evaporation step” and “hot spring thermal evaporation step” of the present invention).

  In the course of this evaporation step, the salt concentration of the brine reaches 15% to 20% can be used as a seasoning as it is. That is, this brine can be used as it is as a seasoning as needed. Brine made only from seawater is usually too hot to be suitable as a seasoning. However, according to the present embodiment, the umami component is increased by mixing the hot spring water and seawater, and brine suitable for use as a seasoning can be obtained.

  In the present embodiment, the evaporation process described above is continued, and the brine in the evaporation pot 41 is further heated using hot spring water (hot spring heat) circulating in the pool main body 31 to evaporate the evaporation pot. The water of the brine in 41 is evaporated (equivalent to the “evaporation process” and “hot spring heat evaporation process” of the present invention). Thus, when the brine is further evaporated with hot spring water, salt crystals are obtained in the evaporation pot 41.

  Next, the salt crystals obtained in the evaporation kettle 41 are transferred to the sun drying house 50. The sun-dried house 50 is provided with a salt placement location (not shown) that is maintained in a hygienic state, and the transferred salt crystals are placed at the salt placement location. . In the present embodiment, a salt crystal is placed at a salt placement location in the sun-drying house 50, and heat treatment using solar heat is performed on the salt crystal to evaporate moisture in the salt crystal. (Corresponding to “evaporation step” and “solar heat evaporation step” of the present invention).

  As for the evaporation step when producing the salt, it is possible to carry out evaporation treatment using hot spring heat until the end, but as shown in this embodiment, if the solar heat evaporation step is performed after the hot spring heat evaporation step, bittern A flavorful natural salt with no ingredients and increased umami ingredients can be obtained.

  Now, in this embodiment, salt is manufactured based on the manufacturing apparatus and manufacturing method mentioned above. Hereinafter, the operational effects resulting from these characteristic manufacturing apparatuses and manufacturing methods will be described in detail.

  The salt production method using seawater according to the present embodiment is similar to the first embodiment, in which the hot spring water is circulated by flowing hot spring water into the hot spring water circulation pool 30, and the evaporating pot provided in the hot spring water circulation pool 30. The seawater supply process for supplying seawater into 41, the hot spring water supply process for supplying hot spring water into the evaporating pot 41, the stirring process for stirring the seawater and hot spring water in the evaporating pot 41, and the stirring process And an evaporation step for evaporating the water of the brine.

  According to such a configuration, the hot spring water in the hot spring water circulation pool 30 (about 105 degrees hot spring water) is used as a heat source when boiling the mixed liquid of seawater and hot spring water supplied into the evaporation kettle 41. Therefore, it is hygienic, efficient, low-cost, environmentally friendly, and can produce salt. In other words, since it is not a salt production method using only the sun, it is possible to carry out a planned and efficient salt production regardless of the weather or the like. In addition, since no fuel such as firewood is required to boil the brackish water, there is no cost associated with fuel. Furthermore, according to such a structure, since salt is manufactured in the evaporation pot 41 (for example, iron pot etc.), mud etc. do not mix in the manufactured salt. Moreover, according to such a structure, the hot spring water which was discharged | emitted to the sea unused can be utilized effectively. Furthermore, according to such a structure, since the liquid mixture of seawater and hot spring water is boiled, natural salt rich in mineral components and umami can be produced.

  Moreover, the salt production method according to the present embodiment includes a hot spring water storage step of storing hot spring water in the tank 20, and is configured to flow hot spring water from the tank 20 into the hot spring water circulation pool 30 in the hot spring water circulation step. ing.

  According to such a configuration, the hot spring water that springs from the ground is temporarily stored in the tank 20, and the hot spring water is poured from the tank 20 into the hot spring water circulation pool 30, so that the temperature and flow rate are controlled to predetermined conditions. And hot spring water can be supplied efficiently. That is, the hot spring water that spouts has a strong momentum and pressure fluctuations are likely to occur. Thus, if the hot spring water that spouts is stored in the tank 20 as described above, the hot spring water is maintained at a constant pressure (water pressure) while maintaining the temperature. Hot spring water can be supplied into the water circulation pool 30.

<Other embodiments>
The present invention is not limited to the above-described embodiments, and various modifications can be made as necessary within the scope that can be adapted to the spirit of the present invention. It is included in the technical scope of the present invention.

  In the said embodiment, although the case where the hot-spring heat evaporation process using hot spring heat and the solar-heat evaporation process using solar heat were performed as an evaporation process was demonstrated, this invention is not limited to this structure. Therefore, for example, it is possible to evaporate all the water of the brine using only hot spring heat. That is, it is good also as a structure which heats the brine in the evaporation pot 41 of the state suspended in the pool main-body part 31 only with hot spring water, and completely evaporates the water of brine and obtains a "salt".

Moreover, in the said embodiment, about the method of producing "salt" by forming "brine water" by supplying seawater and hot spring water in steps with respect to the evaporating pot 41, and evaporating the brackish water. Although described, the present invention is not limited to this configuration. Therefore, for example, “brine” in which seawater and hot spring water are blended in advance is produced, and the brine is supplied to the evaporating pot 41 and evaporated to produce “salt”.
More specifically, for example, seawater and hot spring water are mixed at a ratio of “seawater: hot spring water = 1: 3”, and the mixed liquid is heated using hot spring heat to have a salt concentration of 15%. Evaporate to ~ 20%. This liquid (brine) having a salt concentration of 15% to 20% can be used as a seasoning as necessary, as described in the other embodiments. And, when producing "salt", by performing an evaporation process using hot spring heat and an evaporation process using a sun-dried house for the liquid (brine) that can be used as a seasoning, The liquid (brine) can be evacuated (evaporated) to obtain “salt” crystals. That is, also in this embodiment, it is possible to produce a natural salt rich in mineral components that is sanitary, efficient, low-cost, environmentally friendly, using the apparatus described in each of the above-described embodiments.

  Furthermore, in the said embodiment, although the case where "hot spring water" was mainly used as hot spring heat was demonstrated, this invention is not limited to this structure. Therefore, for example, “steam” obtained from a source or a tank can be used. Specifically, a pipe capable of circulating “steam (hot spring steam)” is installed near the source spring or tank, and this pipe is connected to the hot spring water circulation pool 30, so that “steam” is appropriately transferred to the hot spring water circulation pool. 30 may be configured to be distributed. With such a configuration, the temperature drop of the hot spring water in the hot spring water circulation pool 30 can be effectively prevented.

  According to the present invention, using a source of Obama hot spring, based on a relatively simple configuration, it is possible to produce a natural salt rich in mineral components, hygienic, efficient, low-cost, environmentally friendly, A salt making method can be obtained. In addition, according to the present invention, it is possible to produce a natural salt rich in mineral components that is hygienic, efficient, low-cost, environmentally friendly, using a source of Obama hot spring, based on a relatively simple configuration. In addition, a salt making apparatus can be obtained.

10 ... Pumping means 11 ... Source 20 ... Tank 30 ... Hot spring water circulation pool (first area)
DESCRIPTION OF SYMBOLS 31 ... Pool main-body part 32 ... Hot spring water supply piping 33 ... Seawater supply piping 34 ... Drainage discharge piping 41 ... Evaporation pot (2nd area | region)
50 ... Sun-dried house

Claims (8)

A salt making method for producing salt using seawater,
A hot spring water circulation process in which hot spring water is poured into the first area and circulated;
A seawater supply step of supplying seawater into the second region provided in the first region;
A hot spring water supply step for supplying hot spring water into the second region;
A stirring step of stirring the seawater and hot spring water in the second region;
And an evaporation step of evaporating water of the brine obtained through the stirring step. A hot spring water storage step of storing the hot spring water in a tank;
The salt production method according to claim 1, wherein in the hot spring water circulation step, the hot spring water is poured from the tank into the first region. The salt production method according to claim 1 or 2, wherein the hot spring water supply step is performed after the seawater in the second region is crystallized after the seawater supply step. The salt production method according to claim 1 or 2, wherein the hot spring water supply step is performed after the salt concentration of the seawater in the second region after the seawater supply step reaches a predetermined concentration. A salt making method for producing salt using seawater,
A hot spring water circulation process in which hot spring water is poured into the first area and circulated;
A brackish water supplying step of supplying brackish water into the second region provided in the first region;
An evaporating step of evaporating the water of the brine in the second region. The salt production method according to any one of claims 1 to 5, wherein the evaporation step includes a hot spring heat evaporation step using hot spring heat and a solar heat evaporation step using solar heat. A salt making device for producing salt using seawater,
A first area where the hot spring water is poured and circulated,
A salt making apparatus comprising: a second region provided in the first region in a state where seawater and hot spring water can be supplied.   The salt making apparatus of Claim 7 which has a tank which can store hot spring water.

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