JP3017515B2 - Sterilizer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a device for killing various germs, and more particularly, to a medium such as a solid object, a powder, and a liquid using a magnetic field. The present invention relates to a sterilization apparatus for killing various kinds of bacteria present in or on the surface without affecting the medium.

(Prior art) Conventionally, as a method of killing various germs present in or on a medium such as a solid object, a powder, a liquid, etc., a method by heating, a method by chemicals, a method by ultraviolet rays, radiations and the like are used. Are known.

However, there are the following problems when trying to kill various germs in the medium by the above-mentioned conventional technology.

(1) When heating, chemical changes, thermal denaturation, thermal deformation, etc. of the components constituting the medium occur.

(2) When chemicals are used, there is a risk of discoloration and corrosion, in addition to hygienic problems such as unpleasant taste and odor addition and pollution.

(3) When irradiating with ultraviolet rays, the medium may be deteriorated or discolored, and only the irradiated surface of the medium has a killing effect.

(4) Radiation is dangerous to handle.

As described above, the conventional sterilization methods have limitations in water supply sterilization, beverage production, sake brewing, and other fields.

The present inventors have disclosed a method for safely killing various germs at room temperature without deteriorating the medium to be treated in JP-A-2-39887. In this method, a microorganism is placed in a magnetic field, and the intensity of the magnetic field in the magnetic field is varied to control the life and death of the microorganism in the magnetic field. In this method, the medium to be processed is placed in a static magnetic field, or a soft magnetic film of an amorphous magnetic material is placed in this medium, and the medium is vibrated or the magnet is moved, so that The intensity of the applied magnetic field is varied.

(Problems to be Solved by the Invention) In the above method, the medium to be treated does not deteriorate and the microorganisms are safely killed at around normal temperature, but there is a problem that the sterilizing effect is still insufficient.

Therefore, the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a sterilizing apparatus which improves a sterilizing effect and does not affect a medium.

[Constitution of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention provides a magnetic shielding cylinder having a plurality of openings, and a medium in which fungi are present inside the magnetic shielding cylinder. An accommodating portion for accommodating, a magnetic source arranged outside the magnetic shield cylinder to apply a static magnetic field to the inside through the opening, and a driving unit for rotating the magnetic source and the magnetic shield cylinder It is characterized by the following.

(Operation) Next, the operation of the device having the above configuration will be described. When the medium is accommodated in the accommodating portion and the magnetic source and the magnetic shielding cylinder are rotated by the driving means, a fluctuating magnetic field acts on the medium. Due to this fluctuating magnetic field, a weak current flows through fungi that are present in the medium and are not a little conductive, and the fungi die.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a transverse sectional view of an apparatus 1 according to an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of the apparatus 1.

The apparatus 1 includes a non-magnetic cylindrical container 2 made of plastic or the like, and a pair of permanent magnets as a magnetic source for generating a magnetic field of 6000 gauss, in which different magnetic poles are fixedly arranged on the outer peripheral surface of the container 2 so as to face each other. A magnet 3, 3 ′, a magnetic shielding tube 4 made of a non-magnetic material and arranged coaxially inside the container 2, and a mounting table 6 as an accommodating portion for mounting a medium 5 inside the magnetic shielding tube 4. It has.

The magnetic shielding cylinder 4 has four opening portions equally distributed in the circumferential direction.
The permanent magnets 3, 3 'are arranged on the outer peripheral surface of the container 2 so that the magnetic flux of the permanent magnets 3, 3' passes through the opening 4a.

The cylindrical container 2, the permanent magnets 3, 3 'and the magnetic shielding tube 4
Are integrally rotatable at high speed by a rotation drive unit (not shown). The rotation drive unit can rotate at an arbitrary constant rotation speed in a range of 100 to 3000 rpm.

The mounting table 6 is held in a stationary state inside the magnetic shielding tube 4. Since the medium 5 includes a solid, a liquid, a powder, and the like, the mounting table 6 may have a shape according to the form of the medium 5.

Next, the operation and effect of the device 1 will be described with reference to FIGS.

 First, the medium 5 is mounted on the mounting table 6.

Next, as shown in FIG.
Move the permanent magnets 3, 3 'and the magnetic shielding cylinder 4 in the direction of arrow A from 100 to
Rotate continuously at any constant speed in the range of 3000 rpm.

Then, the magnetic flux formed between the permanent magnets 3 and 3 ′ rotates, so that a fluctuating magnetic field B of 100 to 3000 rpm acts on the medium 5. If the varying magnetic field B is applied at a peripheral velocity V in the medium 5 by the Fleming's rule shown in FIG. 4, the weak current I ₁ to the fungi 5a in the medium 5 shown in FIG. 3 flows in a loop.
When fungi 5a is higher conductivity as such parasites are further eddy current I ₂ as shown in Figure 3 is generated by both the current I _1, I ₂ and the fungi can be electrocuted.

FIG. 5 shows a main part of the apparatus on which the inventor conducted a basic experiment on the apparatus 1.

As shown in the figure, 60 cc of physiological saline is put into a test tube, and (2 to 3) × 10 ³ yeast / cc and 10 ring-shaped metal wires 11 having a length of about 10 cm are placed in the saline. And an experiment was performed in which the test tube was vibrated vertically at 30 to 120 rpm in a magnetic field of 6000 gauss. As a result, the result appears at 100 rpm or more, the effect becomes remarkable at 500 rpm to 3000 rpm, and 40 to 5
5% of the yeasts have died.

As shown by the results of this experiment, it is possible to provide a sterilization method that improves the sterilization effect without affecting the medium.

 FIG. 6 is a view showing another operation of the device 1.

A device in which a conducting wire 7 is connected to a medium 5 is disposed inside a magnetic shielding tube 4 of the apparatus 1 of the embodiment shown in FIG. 1, and a fluctuating magnetic field is applied to the medium 5 as in the method of the first embodiment.

Then, the induced current I ₃ is induced by the fluctuating magnetic field dφ per unit time dt acting on the conductor 7 from the following equation (1): I ₃ = −dφ / dt (1). induced current I ₃ also flows. As a result, highly conductive microorganisms and parasites can be killed by electrocution, and fungi can be reliably killed.

According to the above-described embodiment apparatus configured as described above, it can be applied to sterilization and preservation of processed foods such as fresh foods and hams and cheeses in general households.

It should be noted that the present invention is not limited to the above-described embodiment, and can be variously modified without departing from the scope of the invention.

[Effects of the Invention] As described above, according to the present invention, it is possible to provide a sterilization apparatus that improves the sterilization effect and does not affect the medium.

[Brief description of the drawings]

1 is a cross-sectional view of an apparatus according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional view of the apparatus, FIGS. 3 and 4 show the operation of the apparatus, and FIG. FIG. 6 is a side view showing a main part of the apparatus, and FIG. 6 is a view showing another operation of the apparatus shown in FIG. 1 ... Sterilizer, 4 ... Magnetic shield tube, 3,3 '... Permanent magnet (magnetic source), 4a ... Open hole, 5 ... Medium, 5a ... Fungily, 6 ... Placement (containment) Part), 7 ... lead wire.

Continuation of front page (56) References JP-A-2-39887 (JP, A) JP-A-2-21866 (JP, A) JP-A-1-257473 (JP, A) JP-A-57-29228 (JP) JP-A-54-14141 (JP, A) JP-A-1-254289 (JP, A) JP-A-54-45955 (JP, A) JP-A-63-137793 (JP, A) 2-134849 (JP, U) JP-A-61-102293 (JP, U) JP-A-61-150097 (JP, U) Patent 2881021 (JP, B2) Patent 2881020 (JP, B2) (58) (Int.Cl. ⁷ , DB name) A61L 2/02 A23L 3/26

Claims (1)

(57) [Claims] 1. A magnetic shielding cylinder having a plurality of apertures, a storage part for accommodating a medium in which fungi are present inside the magnetic shielding cylinder, and a storage part disposed outside the magnetic shielding cylinder and passing through the aperture. A sterilizing device comprising: a magnetic source for applying a static magnetic field to the inside thereof; and driving means for rotating the magnetic source and the magnetic shielding cylinder.