JPH08192147A - Filter of water purifier - Google Patents

Abstract

PURPOSE: To provide a filter capable of stably performing the sufficient elution of a mineral component over a long period of time by using granite porphyry used heretofore in order to elute the mineral component. CONSTITUTION: In the filter 10 incorporated in or connected to a water purifier 100 to perform the purification of water and the addition of a mineral component, at least granite porphyry 11 is employed as the filter material of the filter in a spherical shape with a diameter of 6-15mm.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter which is incorporated in or connected to a water purifier to purify water and add minerals.

[0002]

2. Description of the Related Art In recent years, in light of the deterioration of tap water and the so-called mineral water, which has become popular,
Various water purifiers have been proposed and come into use. The desired functions of this type of water purifier are roughly divided into two: removal of impurities such as dust and bacteria contained in raw water such as tap water, and odor, and addition of minerals.

According to the water purifiers used conventionally, the removal of impurities is almost completely achieved by employing activated carbon and various filters, at least at the beginning of use of the water purifier, but the removal of impurities is eliminated. Is progressing,
It is necessary to clean or replace the filters. Therefore, in conventional water purifiers, it is essential to check the filters, etc.
It had to be cleaned or replaced after a few days of use, which was inconvenient to use.

Regarding the addition of minerals, various rocks, ceramics, etc. are used, and water is made to flow around them, so that the phenomenon of minerals elution from rocks to water is utilized. That was what I was doing.
However, because water always flows on the surface of rocks,
Depending on the filter material such as a filter, impurities that cannot be filtered off adhere to the surface of rocks or the like, and the phenomenon that the elution of minerals is suppressed is occurring. In addition, if the elution of a certain amount of the surface of rocks etc. progresses, the surface will be covered with a component that does not elute in water, so the elution of minerals is also suppressed by this. .

Therefore, regarding the elution of minerals,
Various efforts have been made to select rocks and ceramics materials and change their shapes. For example, granite porphyry is crushed to about 5-10 mm, and this is used as a material for elution of minerals. Is generally done. However, if granite porphyry is crushed, it will have an irregular shape, and if it is packed in a filter and used for a while, it will be limited to a specific passageway for water in combination with the adhesion of impurities mentioned above. Things will be formed,
After all, the minerals are not sufficiently eluted, which is why.

Particularly, when this granite porphyry is crushed, complicated irregularities are formed on the surface, so that not only impurities in water are easily attached and accumulated, but also the impurities once attached cannot be easily removed. Is. The above is a phenomenon that appears remarkably in the case of a purifier that circulates hot water in a bath to purify the bath and allows the bath to be used for 24 hours.

Further, it is also known that a ceramic material is baked and solidified to form a pellet-shaped ceramic, and the cesium pellet is used for elution of minerals and adsorption of impurities. However, in order to sufficiently elute minerals and adsorb impurities, the ceramic material must be fired at a low temperature of around 850 ° C., so to speak, it must be made into soft ceramic pellets. If the ceramic pellet is soft, it means that the binding of the ceramic material is weak, so the ceramic material peels off and contaminates the water while using it as a filter medium, making it unsuitable as a filter medium for water purifiers. It has become. On the contrary, if the ceramic pellets are made hard and fired at a temperature of, for example, about 1000 ° C., the elution of minerals is completely eliminated, and the impurities are hardly adsorbed. It is useless.

Therefore, the present inventors have completed the present invention as a result of repeating various investigations on how to efficiently add minerals.

[0009]

The present invention has been made based on the above-mentioned background, and an object to be solved is to make it possible to stably elute minerals for a long period of time. That is, an object of the present invention is to provide a filter that can satisfactorily elute minerals for a long period of time by using a granite porphyry that has been conventionally used for eluting minerals. To do.

[0010]

Means for Solving the Problems In order to solve the above problems, the means adopted by the present invention will be described with reference to the reference numerals used in the embodiments. A filter 10 for purifying water and adding minerals, wherein at least a granite porphyry 11 is adopted as a filter medium of the filter 10, and the granite porphyry 11 has a diameter of 6 to 6 It is a filter 10 "characterized in that it has a spherical shape of 15 mm.

That is, in the filter 10 according to the present invention, it is necessary to first use at least granite porphyry as the filter medium, because the granite porphyry has a "umami" of purified water. It mainly contains aluminum silicate and aluminum oxide, which are necessary for increasing the amount, and contains a large amount of minerals such as iron, calcium, potassium, magnesium, etc.When it comes into water, it absorbs impurities in the water and sufficient amount of the above minerals. This is because it elutes into.

[0012] The granite porphyry needs to be spherical in shape because the surface area of the granite porphyry is minimized by making the granite porphyry spherical to elute minerals. This is because it is necessary to do it gradually rather than letting it go all at once. Then, by making the granite porphyry spherical, it is possible to suppress the adhesion and deposition of impurities in water on the surface as much as possible, and to facilitate the cleaning of impurities even if they adhere. Is.

Conversely, the hardness of this granite porphyry must be such that it can be processed into a spherical shape. The reason is that such high-hardness granite porphyry can sufficiently elute mineral components as compared with the above-described high-temperature-fired ceramic pellets, and can also reliably adsorb impurities. Because it is a thing.

Further, the spherical granite porphyry 11 to be adopted in the filter 10 of the present invention has a diameter of 6 mm to 15 m.
It must be within the range of m. The reason is that if the diameter of the spherical granite porphyry 11 is smaller than 6 mm, it is not only difficult to manufacture it, but when a large number of it is packed in the filter 10, only a very narrow water channel is formed. Since it is impossible to cause clogging due to impurities, it is not suitable. On the other hand, if the diameter of the spherical granite porphyry 11 is larger than 15 mm, the surface area of the entire spherical granite porphyry 11 in the certain filter 10 becomes small, and sufficient mineral content cannot be eluted. . Above all,
It is the most preferable that the diameter of the spherical granite porphyry 11 is around 10 mm from the viewpoint of production and formation of water channels and elution of minerals.

[0015]

The operation of the filter 10 constructed as described above will be described below.
As shown in FIG. 3, a large number of spherical granite porphyry 11 are packed in a predetermined space partitioned by each filter 13 in the filter 10. Each spherical granite porphyry 11 is literally spherical. Therefore, continuous water channels having a three-dimensional mesh structure are formed between the spherical granite porphyries 11.
Since the diameter of each spherical granite porphyry 11 is 6 mm to 15 mm, this three-dimensional network water channel has a sufficient size as a water passage and also serves as a wall. Since the surface of each spherical granite porphyry 11 has a spherical shape, all the parts are surrounded by a smooth spherical shape.

Therefore, when water flows between the spherical granite porphyry 11 of the filter 10, not only the water flows through the water channel having the three-dimensional mesh structure but also the entire inside of the filter 10. Therefore, the elution of minerals from each spherical granite porphyry 11 will be smooth and stable for a long period of time. Because the surface area of the granite porphyry is suppressed by each spherical granite porphyry 11, the mineral content in the granite porphyry does not elute rapidly into the water but gradually elutes. Is. Moreover, since the spherical surface of each spherical granite porphyry 11 does not allow impurities in water to easily adhere and deposit, elution of minerals cannot be prevented.

Further, even if impurities are attached to the surface of each spherical granite porphyry 11, if each spherical granite porphyry 11 is taken out and washed as in “potato washing”, each spherical flower Since the granite porphyry 11 is literally spherical, the non-adherent matter is easily removed within a short time. Even if such “spherical granite porphyry 11” is subjected to “potato washing”, since each spherical granite porphyry 11 has a hardness that allows it to be spherically processed, it is easily worn away. There is nothing to do. Therefore, each spherical granite porphyry 11 can be reused, and this also enables the filter 10 to be used for a long period of time.

Further, since each spherical granite porphyry 11 has a hardness that allows it to be processed into a spherical shape, its composition material peels off during use as a filter medium. This is not the case, and the purified water will not become cloudy. In other words, each granite porphyry 1
No. 1 does not diffuse impurities into the purified water and maintains the transparency of the purified water.

Of course, in the filter 10 shown in the following embodiment, as shown in FIG. 1, activated carbon 12 is used as another filter medium.
The activated carbon 12 removes the odor of chlorine in tap water. Especially, the activated carbon 12 is made antibacterial to sterilize and adsorb organic substances. Is. Moreover, these activated carbons 12 and each spherical granite porphyry 11 are partitioned by the filters 13, and these filters 13 also remove impurities in water.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in the drawings. FIG. 1 is a sectional view of a water purifier 100 incorporating a filter 10 according to the present invention.
Into 00, the water supplied from the water supply pipe 22 side or the hose 23 is introduced into the filter 10 by the pump 21, and purified water is jetted from the upper end of the filter 10 into the water filter 100 for circulation. Has become. That is, the bypass 24 is connected to the lower end of the water purifier 100, and when the amount of water in the water purifier 100 is equal to or more than a predetermined amount, the water from the bypass 24 is supplied into the filter 10 by the pump 20. When the purified water is circulated in this way and the purified water is taken out from the water intake 24 and the amount of water in the water purifier 100 becomes less than or equal to a predetermined amount, the raw water is supplied from the water supply pipe 22 or the hose 23 into the water purifier 100. It is what is done. In addition,
In the water purifier 100 of the present embodiment, a magnetic body 21 surrounding the pipe between the pump 20 and the filter 10 is provided, and the magnetic field generated by the magnetic body 21 allows water to pass therethrough. I am trying to give activity to.

As shown in FIG. 1, the filter 10 has a cylindrical shape with a water supply port on the lower side and a water discharge port on the upper side.
In the embodiment, the three-stage filters 13 are arranged substantially horizontally,
These filters 13 form a space for the spherical granite porphyry 11 and a space for the activated carbon 12 located therebelow. That is, in this filter 10, the water supplied from the lower side by the pump 20 or the like is passed through the filter 13, the layer made of activated carbon 12, the filter 13, the layer made of spherical granite porphyry 11, and the uppermost filter 13. The purified water is ejected into the water purifier 100. The activated carbon 12 is antibacterial.

The large number of spherical granite porphyry 11 packed in the filter 10 is a mixture of particles having a diameter of about 8 mm to 13 mm in a substantially equal ratio. Although each spherical granite porphyry 11 is literally processed into a spherical shape, the spherical processing cannot be performed unless the raw material granite porphyry has a predetermined hardness. It uses granite porphyry with high hardness.

Now, the components of the purified water formed by the filter 10 containing the spherical granite porphyry 11 as described above are the same for 2 hours as when distilled water is circulated in the water purifier 100 for 30 minutes. When the circulating water was measured while comparing the tap water of the city of Nagoya, which is the raw water, with Comparative Examples 1 and 2 shown below, the results shown in Table 1 below were obtained. It was

[0024]

[Table 1] Here, Comparative Examples 1 and 2 in the table are the filters 1 shown in FIG.
In addition to adopting the same as No. 0, instead of the spherical granite porphyry 11 of the present invention, a simple crushed granite porphyry produced in the same place as the spherical granite porphyry 11 was used as a filter medium. Is. Then, in Comparative Example 1, each value was measured after passing tap water for 2 hours, and in Comparative Example 2, measurement was performed when distilled water was circulated in the water purifier 100 for 2 hours. is there.

In obtaining each numerical value in Table 1, the measuring method in accordance with the Ministerial Ordinance on Water Quality Standards (Ministry of Health and Welfare Ordinance No. 56) is adopted, and the certifier is the Tokai Technical Center (Higashi-ku, Nagoya City). It was Inokoishi 2-chome address 710).

As can be understood from the measurement results in Table 1 above, regarding the elution of minerals, in the filter 10 using each spherical granite porphyry 11, as compared with the one obtained by grinding the same granite porphyry. In particular, it was possible to produce so-called delicious water by producing purified water with high potassium elution and high hardness. Moreover, according to the filter 10 of the present invention, it can be understood that the necessary elution of the mineral content is sufficiently ensured even when it is circulated for a long time as compared with each comparative example.

Further, from the measurement results in Table 1 above, for example, in terms of calcium content, the comparison between Examples 1 and 2 and Comparative Example 2 shows that the present invention is more than the case of simply crushing (Comparative Example 2). It can be understood that the use of the spherical granite porphyry 11 in Example 2 has about twice the elution ability. In particular,
Regarding magnesium and potassium, the example is 30
It can be seen that the elution ability is about double to 250 times higher, and it can be seen that it is considerably more effective to make the granite porphyry spherical rather than simply ground.

[0028]

As described above in detail, in the present invention,
As illustrated in the above embodiment, “a filter 10 that is incorporated in or connected to the water purifier 100 to purify water and add minerals, and at least a spherical flower is used as a filter medium of the filter 10. While adopting granite porphyry 11,
This spherical granite porphyry 11 has a feature that it has a spherical shape with a diameter of 6 to 1 mm. "Therefore, the conventionally used granite porphyry for eluting minerals is used. As a result, it is possible to provide a filter that can satisfactorily elute minerals over a long period of time.

[Brief description of drawings]

FIG. 1 is a sectional view of a water purifier incorporating a filter according to the present invention.

[Explanation of symbols] 100 water purifier 10 filter 11 spherical granite porphyry 12 activated carbon 13 filter

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location C02F 1/68 540 GA F

Claims (1)

[Claims] 1. A filter that is incorporated in or connected to a water purifier to purify water and add minerals, wherein at least granite porphyry is used as a filter medium of the filter. A filter characterized in that the granite porphyry is a spherical substance having a diameter of 6 to 15 mm.