JPS632642B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electromagnetic filter device for water treatment that effectively removes magnetic turbidity such as iron in water to be treated.

Conventionally, an electromagnetic filter device for water treatment, as shown in FIGS. 1 and 2, has a gap 4 between magnetic pole cores 2 and 3 in a beth cell 1 installed in the middle of a water passage, and a gap 4 in the gap 4. A high gradient magnetic field is generated in the gap 4 between the magnetic pole cores 2 and 3 by filling a magnetic thin wire filter 5 and energizing the coil 7 of the electromagnetic device 6 attached to the outer periphery of the Betsu cell 1.
Magnetic turbidity such as iron in the water to be treated that passes through the Betsu cell 1 through the water holes 8 formed in the magnetic pole iron cores 2 and 3 is adsorbed to the magnetic fine wire filter 5 in the gap 4. In this case, the filter effect cannot be sufficiently exhibited unless the amount of water to be treated passing through the gap 4 through the water passage hole 8 is made uniform with respect to a plane perpendicular to the water passage direction.

Therefore, a distributor 9 for distributing the water to be treated from the water holes 8 is installed between the magnetic pole surface of each magnetic pole core 2, 3 and the magnetic fine wire filter 5. Triviewer 9
Since the air gap 4 becomes longer and the magnetic field within the air gap 4 becomes weaker, the unbearing turn of the coil 7 must be increased by that amount, which increases the external shape of the electromagnetic filter device 10 for water treatment. Moreover, it also has the disadvantage of increasing power consumption.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks of the conventional filter by providing an electromagnetic filter device for water treatment that has a simple structure, can be easily miniaturized, and can reduce power consumption.

Next, the configuration of an embodiment of the present invention is shown in FIGS. 3 and 4.
This will be explained using figures.

In the Betsu cell 14 connected to the water passage pipe 11 via flange joints 12 and 13, two magnetic pole cores 15 and 16 forming a magnetic path form a constant air gap 17 between the magnetic pole faces. It is installed so as to block water flow inside the Beth cell 14, and the magnetic pole core 1
In the gap 17 between 5 and 16, there is a magnetic thin wire that makes the magnetic field in the gap 17 have a high gradient and attracts magnetic turbidity in the water to be treated that passes through the gap 17, in this case, a magnetic wire made of SUS430, Ni, etc. A thin wire filter 18 is filled.

Further, on the outer periphery of the Bethel 14, a lower magnetic pole 15 fixed to the Bethel 14, an upper magnetic pole iron core 16 which is thinner than the magnetic pole 15 and removably attached to the Bethel 14, and an air gap 17 are used as a magnetic path. An electromagnet device, in this case, an electromagnet device 22 is attached, in which a yoke 21 surrounds the outer periphery of a coil 20 wound around the outer periphery of the Bethel 14 via a bobbin 19 to form a magnetic path together with the magnetic pole cores 15 and 16. , 16 have water holes 2 for passing the water to be treated supplied from the upper side of the vessel 14.
As shown in FIG. In the experiment, the diameter of the water flow holes 23 was set to 10 to 10. The filter efficiency is highest when the filter is 80 mm and the aperture ratio (sum of cross-sectional areas of all water holes 23 divided by magnetic pole area) is set to about 5 to 20% in a magnetic field of 10,000 Gauss or less.

In the case of the electromagnetic filter device 24 for water treatment configured in this way, a large number of water passage holes 23 are formed with the magnetic pole magnets 15 and 16 distributed over the entire magnetic pole surface instead of the conventional distributor 9. Moreover, by reducing the porosity of the water passage hole 23 in the center of the magnetic pole face, where dynamic pressure is applied, and increasing the porosity of the periphery of the pole face, the water passage hole 23 in the pole iron cores 15 and 16 is
The disturbance in the magnetic field distribution in the air gap 17 due to the opening of the gap 17 is reduced, and the amount of water passing through the surface perpendicular to the direction of water passing through the filter 18 between the magnetic pole cores 15 and 16 is almost uniformly distributed. As a result, the distance between the magnetic pole cores 15 and 16 can be shortened by the distance of the conventional distributor 9, and the unbearing turn of the coil 20 can be reduced by the reduction in the length of the air gap 17 due to this shortening. This makes it possible to reduce the cross-sectional area of the yoke 21 and thereby reduce the electromagnetic filter device 2 for water treatment.
The power consumption of the device 24 can be greatly reduced while the external shape of the device 4 is made smaller and the filter effect is improved.

In the case of this embodiment, the upper magnetic pole 15 is made thinner than the lower magnetic pole 16, thereby making it easier to remove and attach the upper magnetic pole 15 when replacing the filter 18.

Next, the effects of the present invention will be explained.

The present invention provides two magnetic pole cores that form a magnetic path with a constant gap formed between the two magnetic pole cores in the direction of the water flow channel in a vessel provided in the middle of the water flow channel. At the same time, the water to be treated, which is supplied to the Betsu cell, is passed through the magnetic pole core, and the water to be treated, which passes through the upstream magnetic pole core, is averaged on a surface perpendicular to the water flow direction in the gap between the magnetic poles. The water holes to be dispersed are formed so that the porosity of the water holes per unit area of the magnetic pole surface increases in the radial direction from the center of the magnetic pole surface at the center of the piping, and the gap between the magnetic poles is filled with a filter made of magnetic fine wire. The electromagnetic filter device for water treatment further includes an electromagnetic device having the two magnetic pole iron cores and the gap filled with the magnetic fine wire filter as a magnetic path around the outer periphery of the Betsu cell.

As a result, the present invention makes it difficult for the water to be treated to flow at the center of the magnetic pole surface, and makes it easier to flow as the water moves away from the center of the magnetic pole surface in the radial direction. The treated water flows uniformly over the entire magnetic pole surface, and as a result, the external shape of the water treatment electromagnetic filter device is made smaller, the filter effect is improved, and the power consumption of the device is significantly reduced. There is an effect that can be reduced.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway front view of a conventional embodiment;
The figure is a perspective view of the magnetic pole cores 2 and 3, FIG. 3 is a partially cutaway front view of an embodiment of the present invention, and FIG. 4 is a perspective view of the magnetic pole core 15. 1... Piping, 14... Bethel, 15, 16...
...Magnetic pole iron core, 17...Air gap, 18...Filter,
22... Electromagnet device, 23... Water hole, 24...
Electromagnetic filter device for water treatment.

Claims (1)

[Scope of Claims] 1. A constant air gap is formed between two magnetic pole cores that form a magnetic path in the direction of a water flow channel in a Beth cell provided in the middle of a water flow channel. At the same time, the treated water supplied to the Betsu cell passes through the magnetic pole core, and the treated water passing through the upstream magnetic pole core is installed in the gap between the magnetic poles on a surface perpendicular to the water flow direction. Water holes are formed to be distributed on an average basis by increasing the porosity of the water holes per unit area of the magnetic pole surface in the radial direction from the center of the magnetic pole surface at the center of the piping, and a filter made of magnetic fine wire is installed in the gap between the magnetic poles. An electromagnetic filter device for water treatment, characterized in that an electromagnetic device is provided around the outer periphery of the Betsu cell, the electromagnetic device having a magnetic path formed by the two magnetic pole iron cores and the gap filled with the magnetic fine wire filter. 2 The porosity of the water holes relative to the entire magnetic pole surface is 5 to 20.
%. The electromagnetic filter device for water treatment according to claim 1. 3. Claims 1 or 2, characterized in that the thickness of the removable upper magnetic pole core installed in the Betsu cell is thinner than the thickness of the lower magnetic pole core. Electromagnetic filter device for water treatment.