JPH09164390A - Mineral eluting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To elute a concd. mineral into water by arranging an eluate contg. a mineral in an electrolytic cell having an anode and a cathode, storing water in the cell or allowing water to flow in the cell and impressing a DC voltage between the electrodes. SOLUTION: A mineral eluate 4 of coral sand contg. calcium and magnesium is arranged at the bottom in an electrolytic cell 1, water 5 is stored in the cell 1, a DC voltage 6 is impressed between an anode 2 and a cathode 3, hence the current flows toward the cathode 3 from the anode 2, and the electron flows to the anode 2 from the cathode 3. The electron is taken by the anode 2 to generate oxygen and hydrogen ion (4H2 O→4H<+> +2O2 +4e<-> ) in the vicinity of the anode 2, and the water 5 is acidified around the anode 2. The generated hydrogen ion reacts with the calcium caronate in the eluate 4 (CaCO3 +2 H<+> →Ca<2+> +H2 O+CO2 ), and the mineral component such as calcium is dissolved in the cell 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mineral water generator used for general households and businesses for adding a mineral component to raw water.

[0002]

2. Description of the Related Art Conventionally, in order to purify tap water at home,
Water purifier, alkali ion water purifier, mineral water purifier, etc. are used. The water purifier is mainly composed of activated carbon and hollow fiber membranes. Activated carbon works to remove bad components dissolved in water such as free chlorine, and the hollow fiber membrane works to remove components suspended in water such as dust and miscellaneous bacteria.

The alkaline ionized water purifier has a function of adding minerals and a function of electrolyzing water in addition to the function of the water purifier. The mineral addition function is performed using calcium lactate, calcium glycerophosphate, etc., and the water that has passed through the mineral layer is processed into acidic water and alkaline water by the electrolysis function. Although the Ministry of Health and Welfare requires approval, it has an astringent effect on acidic water obtained from an alkaline ionized water device and an effect on chronic water such as chronic diarrhea, indigestion, gastrointestinal abnormalities, antacid, and hyperacidity for alkaline water. Admits.

Further, the mineral water conditioner has a mechanism for passing water through a mineral-containing substance such as calcium carbonate in addition to a water purifying material such as activated carbon.

[0005]

However, while the conventional water purifier has a function of removing a bad component from tap water or the like, it has a function of adding minerals such as calcium necessary for humans. Absent. Alkaline ion water purifiers and mineral water water purifiers have the function of dissolving minerals, but they are tested by the National Living Center (announced in November 1994, "Tataname" December 1994). According to (published in the issue), even with the maximum amount of alkaline ionized water, the amount of calcium increased by only 5 mg / L, which is insufficient as a function of increasing minerals such as calcium. Therefore, in order to elute a large amount of mineral components, there has been a problem that it is necessary to repeatedly pass water through the minerals. On the contrary, when it is desired to shorten the treatment time, there is a problem that the amount of mineral components eluted becomes small.

[0006] On the other hand, the alkaline ionized water conditioner is constructed so as to pass water through calcium lactate, dissolve calcium and magnesium, and then perform electrolysis. The alkaline ionized water produced by this device is used for beverages. The other acidic water was drained. Due to this electrolysis, about 1/2 of the acidic water is drained, which causes a problem that the utilization rate of the raw water is poor.

Further, when electrolysis is carried out by an alkali ion generator, scales or the like are generated on the electrodes, and in order to clean the electrodes, the polarities of the electrodes are changed or the electrodes are cleaned. .

[0008] The present invention is to solve the above problems,
It is an object of the present invention to provide a mineral dissolution apparatus for dissolving high hardness minerals in water.

[0009]

In order to achieve the above object, one means of the present invention is to arrange an eluate containing minerals in an electrolytic cell having an anode and a cathode and store water in the electrolytic cell. The mineral elution device applies a DC voltage between the electrodes while flowing water.

Another means has an anode and a cathode,
Place an eluate containing minerals inside or around the insulator where an insulator that does not conduct electricity between the anode and the cathode is placed between the electrodes, and store or flow water in the electrolytic bath. The mineral elution device applies a DC voltage between the electrodes.

Still another means is to arrange a mineral component on the anode side in an electrolytic cell having a coat between the electrodes of an anode and a cathode, and store or flow water in the electrolytic cell, and between the electrodes. This is a mineral elution device for applying a DC voltage.

[0012] Still another means is a mineral elution device for applying a DC voltage between the electrodes while storing or flowing water in an electrolytic cell having an eluate containing minerals between the anode and cathode electrodes. To do.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 arranges an eluate containing minerals in an electrolytic cell having an anode and a cathode, and stores a direct current voltage between the electrodes while storing or flowing water in the electrolytic cell. Since it is a mineral elution device that applies a voltage, it is possible to provide a mineral elution device that can elute minerals in a short time and change neutral raw water into alkaline ionized water.

According to a second aspect of the present invention, an electrolytic cell having an anode and a cathode, in which an insulator that does not conduct electricity is arranged between the anode and the cathode, and around or part of the insulator. An eluate containing minerals is placed, and it is a mineral elution device that applies a DC voltage between electrodes while storing or flowing water in the electrolytic cell, so that minerals are eluted in a short time and neutral raw water is converted into alkaline ions. It is possible to provide a mineral elution device that can be changed to water.

According to a third aspect of the present invention, a mineral component is arranged on the anode side in an electrolytic cell having a coat film between the anode and the cathode, and water is stored or flowed in the electrolytic cell.
Since the mineral elution device applies a DC voltage between the electrodes, it is possible to provide a mineral elution device capable of eluting minerals in a short time and converting neutral raw water into alkaline ionized water.

According to a fourth aspect of the present invention, there is provided an electrolytic cell having an anode and a cathode, in which an eluate containing minerals is arranged between the electrodes of the anode and the cathode, or water is stored between the electrodes while flowing water. Since the mineral elution device applies a DC voltage, it is possible to provide a mineral elution device that can elute minerals in a short time and change neutral raw water into alkaline ionized water.

According to the fifth aspect of the invention, since the mineral elution device is provided with the water purification section before the treatment of the electrolytic cell,
It is possible to provide a cleaner mineral elution device by previously purifying the raw water by the purifying means and performing the mineral elution treatment. Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1) In FIG. 1, 1 is an electrolytic cell having an anode 2 and a cathode 3. A mineral elution substance 4 such as coral sand containing calcium and magnesium is placed at the bottom of the electrolytic cell 1, water 5 is stored in the electrolytic cell 1, and a DC voltage 6 is applied between the electrodes of the anode 2 and the cathode 3. It is configured to apply.

The operation of this embodiment will be described below. When water 5 is stored in the electrolytic cell 1 in which the mineral-eluting substance 4 is arranged and a DC voltage 6 is applied between both electrodes of the anode 2 and the cathode 3, from the positive side of the DC voltage 6, the anode 2 of the electrolytic cell 1, A current repeatedly flows through the water 5 and the cathode 3 in the order of the negative side of the DC voltage 6. The magnitude of the current changes depending on the magnitude of the DC voltage 6 and the resistance of the water 5. The resistance of the water 5 is usually about 10K to 20KΩcm. It is necessary to shorten the distance between the anode 2 and the cathode 3 and both electrodes and widen the area of both electrodes to design the electrodes so that a predetermined current can easily flow. This current flows from the anode 2 to the cathode 3, while the electrons flow from the cathode 3 to the anode 2 on the contrary. Electrons are emitted from the cathode 3 and react with the water 5 to generate hydrogen (H +) and hydroxide ions (OH−) in the vicinity of the cathode 3. At this time, the chemical formula is as shown in (Chemical formula 1), and the water 5 is decomposed into alkaline in the vicinity of the cathode 3.

[0020]

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On the other hand, in the absence of the mineral eluting substance 4, in the vicinity of the anode 2, electrons are deprived of by the anode 2 to generate oxygen and hydrogen ions. The chemical formula at this time is as shown in Chemical formula 2, and the water 5 becomes acidic near the anode 2.

[0022]

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Mineral components such as calcium carbonate are slightly dissolved in a neutral pH solution, but are more easily dissolved in an acidic pH solution.

With the vicinity of the anode 2 being acidic,
When the mineral-eluting substance 4 is placed in this electrolytic cell 1,
Calcium carbonate reacts with hydrogen ions formed by the reaction of (Chemical Formula 2). The chemical formula at this time is (Chemical Formula 3), and mineral components such as calcium have melted in the electrolytic cell 1.

[0025]

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At the same time, this acidic water is converted into alkaline water by reducing hydrogen ions due to the dissolution of minerals. In the vicinity of the cathode 3, alkaline water is produced as in the conventional case, and in the vicinity of the anode 2, acidic water reacts with minerals, the mineral components are dissolved, and alkaline water is produced. As a result, minerals are added. It becomes possible to make alkaline ionized water.

Although the solubility of minerals changes depending on the length of the energization time, the solubility decreases little by little with the passage of time. Therefore, in order to increase the solubility of minerals, the current should be based on the treatment time. , It is necessary to determine the size of the electrodes.

In this embodiment, the water storage system for storing water in the electrolytic cell has been described. However, even in the circulation system in which the mineral is dissolved while circulating the treated water, the water is passed through the electrolytic cell only once to dissolve the mineral. It may be running water. In the case of the running water system, in order to accelerate the dissolution of minerals, it is necessary to increase the speed of the dissolution of minerals by enlarging the electrodes of the electrolytic cell, lengthening the passage time of the electrolytic cell, and increasing the current. is there.

Even if these methods are different, the elution amount of minerals can be changed by changing the magnitude of the electric current, the area of the electrodes, and the distance between the electrodes. Even if a mineral component is added to water, the mineral component is slightly dissolved, but the solubility is significantly different compared to the above method.

Further, in the conventional alkaline ionized water conditioner,
Acidic water is produced at the same time as alkaline ionized water, and only alkaline ionized water can be used as drinking water, and the acidic water is wasted. Therefore, in order to make the necessary alkaline ionized water, double the amount of raw water. Was needed.

In the above method, the mineral is dissolved in the acidic water, and as a result, the alkaline ionized water containing the mineral is produced, so that it is not necessary to drain it. In this case, the mineral elution substance was placed at the bottom of the electrolytic cell for explanation,
A large number of electrodes may be arranged so as to hide the electrodes in the electrolytic cell.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment described above are designated by the same reference numerals and the description thereof will be omitted. In FIG. 2, an insulator 7 is arranged between the electrodes of the anode 2 and the cathode 3 in addition to the first embodiment, and the mineral eluting substance 4 is arranged in a part or all of the periphery of the insulator 7. A mineral eluting substance is arranged in the current passage between the anode 2 and the cathode 3. Further, it is configured to store water in the electrolytic dissolution tank 1. The insulator 7 is made of a material that does not allow ions to pass.

The operation of this embodiment will be described below. The chemical reaction around the electrodes of the anode 2 and the cathode 3 is the same as that described in the first embodiment. The difference is that the insulator 9 is arranged between the anode 2 and the cathode 3.

When a voltage is applied to both electrodes, electrons flow in the direction opposite to the current, and at the same time, electrolysis occurs and hydrogen ions and hydroxide ions are generated. In addition, electrons and ions easily flow in places where the distance between the electrodes is short. That is, it is easy to pass through a place where the resistance between the electrodes is small. The mineral-eluting substance 4 is arranged at a place where the electrons easily pass, that is, in the movement path of the electrons and the ions, and the electrons emitted from the cathode 3 are arranged around the insulator 9 by the insulator 9 between the electrodes. It passes through the mineral-eluting substance 4 which has been stored, and at the time of the passage, a reaction is caused to elute the mineral. The insulator 9 reliably separates the alkaline water and the acidic water, the acidic water easily reacts with the mineral-eluting substance, and the solubility is increased.

In the first embodiment, the mineral-eluting substance is arranged at the bottom of the electrolytic cell 1, and the current flows through the place where the distance between the electrodes is short, so that electrons and hydrogen ions are generated, for example, calcium carbonate. Difficult to react with mineral elution substance 4.
For this reason, in the second embodiment, by disposing the mineral-eluting substance 4 in the movement path of electrons and hydrogen ions, it becomes easy to promote the dissolution reaction. The mineral elution component 4 is arranged around the insulator 7 because a current flows between both electrodes but no current flows through the insulator 7, so that the current passes around the insulator 7. This is because

After a predetermined time has elapsed, the alkaline water containing minerals is produced by mixing at the discharge ports of both electrodes. Here, the water storage type in which water is stored in the electrolytic cell 1 has been described, but it may be a circulation type or a running water type. Even if these methods are different, the elution amount of minerals can be changed by changing the magnitude of the electric current, the area of the electrodes, and the distance between the electrodes.

(Third Embodiment) Next, a third embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment described above are designated by the same reference numerals and the description thereof will be omitted. In FIG. 3, a mineral-eluting substance 4 such as coral sand is placed on the side of the anode 2 in the electrolytic cell 1 having a cover film 7 between the anode 2 and the cathode 3 so that water is stored in the electrolytic cell 1. It is configured.

The operation of this embodiment will be described below. The chemical reaction around the electrodes of the anode 2 and the cathode 3 is the same as that described in the first embodiment. The difference is that the diaphragm 7 shields the acidic water formed around the anode 2 and the alkaline water ions formed around the cathode 3 from mixing with each other by passing an electric current. However, ions can freely pass through the diaphragm 7.

Since the acidic water formed around the anode 2 is separated from the alkaline water by the cover film 7, the pH is lower than that in the first embodiment, and the strong acid having a higher acidity is used. There is water. This strongly acidic water significantly increases the solubility of the mineral-eluting substance 4 arranged on the anode 2, and as a result,
Weakly acidic water containing minerals is produced.

After a lapse of a predetermined time, by mixing at the discharge ports of both electrodes, alkaline water containing minerals is produced. Here, the water storage type in which water is stored in the electrolytic cell 1 has been described, but it may be a circulation type or a running water type. Even if these methods are different, the elution amount of minerals can be changed by changing the magnitude of the electric current, the area of the electrodes, and the interval of the electrodes.

(Fourth Embodiment) Next, a fourth embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment described above are designated by the same reference numerals and the description thereof will be omitted. In FIG. 4, a container 9 for allowing ions to pass is arranged between the electrodes of the anode 2 and the cathode 3, and the mineral eluting substance 4 is arranged therein, and water is stored in the electrolytic cell 1.

The operation of this embodiment will be described below. The chemical reaction around the electrodes of the anode 2 and the cathode 3 is the same as that described in the first embodiment. A different point is that a container 8 for passing ions having a mineral-eluting substance or the like is arranged between the anode 2 and the cathode 3.

When a current is applied to both electrodes, electrons flow in the opposite direction to the current, and at the same time, electrolysis occurs and hydrogen ions and hydroxide ions are generated. Electrons and ions easily flow in places where the electrode distance is short. Since the mineral eluting substance is arranged in the container 9 between the electrodes, hydrogen ions react with, for example, calcium carbonate or the like to dissolve out calcium. This reaction is represented by the chemical formula (Formula 3). By arranging the mineral-eluting substance 4 between the electrodes through which the electrons can easily pass,
The reaction is active and the mineral solubility is increased.

It is important to arrange this container 9 as close to the anode 2 as possible so that the hydrogen ions generated in the anode 2 can be used efficiently. The container is made of nylon or is bisque-fired to pass the ions. It is also possible to configure with.

Although the water storage system for storing water in the electrolytic cell 1 has been described here, it may be a circulation system or a running water system. Even if these methods are different, the elution amount of minerals can be changed by changing the magnitude of the electric current, the area of the electrodes, and the interval of the electrodes.

(Fifth Embodiment) Next, a fifth embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment described above are designated by the same reference numerals and the description thereof will be omitted. In FIG. 5, before the treatment of the electrolytic cell 1, the water purification unit 10 mainly having activated carbon and a hollow fiber membrane is arranged.

The operation of this embodiment will be described below. Before electrolyzing water in the electrolyzer 1, it works to remove bad components dissolved in water, such as free chlorine contained in tap water 4, and the hollow fiber membrane is used to remove water such as dust and bacteria. Place a water purification unit 10 that works to remove suspended components in 4, and make clean water 4 in the water purification unit 10 and then add minerals in the electrolytic cell 1 to use as drinking water immediately after treatment it can.

[0048]

According to the first aspect of the present invention, an eluate containing minerals is placed in an electrolytic cell having an anode and a cathode, and a DC voltage is applied between the electrodes while storing or flowing water in the electrolytic cell. By applying, it is possible to produce water in which high-concentration minerals are eluted.

According to the second aspect of the present invention, the inside of the electrolytic cell in which an insulator having an anode and a cathode and having no electricity conducted between the anode and the cathode is disposed, and around or part of the insulator. By arranging an eluate containing minerals in the electrolyte and applying a DC voltage between the electrodes while storing water in the electrolytic cell or flowing water, water in which a high concentration of minerals is eluted can be prepared.

According to the third aspect of the invention, a mineral component is arranged on the anode side in an electrolytic cell having a capping membrane between the anode and the cathode, and water is stored or poured in the electrolytic cell. By applying a DC voltage between the electrodes, water in which a higher concentration of minerals is eluted can be produced.

According to the invention described in claim 4, the electrode is stored or flowed in an electrolytic cell having an anode and a cathode, and an eluate containing minerals is arranged between the electrodes of the anode and the cathode. By applying a DC voltage between them, it is possible to produce water in which a higher concentration of minerals is eluted.

According to the fifth aspect of the present invention, by arranging the water purification section before the treatment of the electrolytic cell, it is possible to produce a more clean water in which high-concentration minerals are eluted.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a schematic configuration of a mineral elution device according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing a schematic configuration of a mineral elution device according to a second embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a schematic configuration of a mineral elution device according to a third embodiment of the present invention.

FIG. 4 is a cross-sectional view showing a schematic configuration of a mineral elution device according to a fourth embodiment of the present invention.

FIG. 5 is a cross-sectional view showing a schematic configuration of a mineral elution device according to a fifth embodiment of the present invention.

[Explanation of symbols]

 1 Electrolyzer 2 Anode 3 Cathode 4 Mineral leaching substance 5 Water 6 DC power supply 7 Insulator 8 Capsule 9 Container 10 Purification part

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical indication C02F 1/68 540 C02F 1/68 540D 540E A23L 2/00 A23L 2/38 B 2/38 C02F 1 / 46 A C02F 1/46 Z 9/00 502M 9/00 502 A23L 2/00 V (72) Inventor Takayuki Urata 1006 Kadoma, Kadoma-shi, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (5)

[Claims] 1. A mineral elution device in which an eluate containing minerals is placed in an electrolytic cell having an anode and a cathode, and a direct current voltage is applied between the electrodes while storing water or flowing water in the electrolytic cell. 2. An electrolytic cell having an anode and a cathode, and an insulator that does not conduct electricity between the anode and the cathode, and an eluate containing minerals around or part of the insulator. A mineral elution device that is placed and stores a water in an electrolytic cell or applies a DC voltage between electrodes while flowing water. 3. A direct current voltage is applied between the electrodes while arranging a mineral component on the anode side in an electrolytic cell having a capping membrane between the electrodes of the anode and the cathode and storing or flowing water in the electrolytic cell. A mineral elution device that does. 4. A mineral having a positive electrode and a negative electrode and storing a water or flowing a water in an electrolytic cell in which an eluate containing a mineral is arranged between the positive electrode and the negative electrode, and applying a DC voltage between the electrodes. Elution device. 5. The mineral elution device according to claim 1, wherein a water purification unit is arranged before the treatment of the electrolytic cell.