JPH0247245B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a filter device in which a filter element made of a sponge-like elastic body is attached to a core body.

As a conventional filter device, magnetic fine powder is added to and mixed with foamed elastomer and solidified, forming a fluid flow path that communicates with the built-in bubble pores in the elastomer, and adsorbing magnetic reactants in the excess fluid using magnetic separation. It was widely used.

In this type of magnetic filter, the magnetic material is
Hard materials, soft materials, semi-hard materials, or a mixture of these materials are used, but in any case, the shape and dimensions must be constant and the formed fluid flow path must be maintained constant during the application stage. Therefore, it is difficult to obtain stable filter efficiency and precision.

SUMMARY OF THE INVENTION In view of the above-mentioned current situation and drawbacks, it is an object of the present invention to provide a filter device which maintains a substantially constant and stable filtering efficiency and accuracy at any stage of the filtering process. In order to achieve this object, the filter device of the present invention has a cylindrical core body which has a shape structure through which fluid can easily pass and is provided with permanent magnets fixed at a plurality of locations.
It is characterized by being equipped with a filter base material made of a sponge-like organic compound elastic material containing fine magnetic material.

Next, one embodiment of the present invention will be described based on illustrative drawings. FIG. 1 is a side sectional view of one embodiment of the present invention, FIG. 2 is a side sectional view of another embodiment, FIG. 3 is a perspective view of an example of the core body, and FIG.
FIG. 4 is a front view showing the arrangement of permanent magnets in the core body shown in FIG. 3;

In the embodiment shown in FIG. 1, on the support part of the base plate 10,
Attach the filter. Synthetic resin sponge 2 and 3
As shown in the figure, core body 1 with permanent magnets attached
Attach to the inner and outer surfaces of the A core body is in close contact with surfaces 9 and 19 between the sponge layers 2 and 3, and layers 1, 2, and 3 are formed into a U-shape, with a core body 6 inside that supports the entire filter. , installed between the filter and the base plate 10. The sponge layers 2 and 3 are made of synthetic resin elastomer (elastic material), such as urethane,
A poroelastic body made of at least one compound arbitrarily selected from silicone, etc.;
A porous body is formed by adding and mixing at least one arbitrarily selected magnetic hard material, soft material, semi-hard material, or a mixture of these materials with required shape and dimensions, and later, a porous body is formed into a porous body with a predetermined shape and dimension. It is molded into. When it is attached to the core body, it is compressed and expanded again, and the pore size and shape are controlled to be changed to a predetermined value. The core body 6 that supports the whole body and the core body 1 inserted between the magnetic poroelastic bodies 2 and 3 and brought into close contact with the surfaces 9 and 19 contain permanent magnets having strength as required. The fluid enters from the inlet WA, passes through the core body 6, and passes through the three layers of the core body 1 and the magnetic poroelastic bodies 2 and 3 mounted in contact with the surface of the frame 7 of the core body. It exits through the fluid channel inside.

The filter with the side cross section shown in FIG. 2 is constructed by fixing a core body 6, which is made up of permanent magnets embedded in a plurality of predetermined locations, on a base plate (not shown) that is fixed as a whole. The poroelastic material layers 2 and 3 containing fine magnetic material are attached to both surfaces.

FIG. 3 shows a core body 6 made of a rigid body having the necessary strength and shape. It consists of side frames 14 and 15, top frames 12 and 17, bottom frame 29, and foamed elastic layer support claw 11, and has spaces 13 and 16, etc., and has a core body so that the fluid flow path can be maintained constant. to make.

As shown in FIG. 4, the horizontal frame 15 and vertical frame 14 of the side wall
Permanent magnet chips 2 having the necessary magnetic strength are placed at the intersections of the bottom peripheral frame 29, the intersections of the horizontal frame 13, the vertical frame 17, and the peripheral frame 12 on the upper surface, and other necessary locations.
Attach 3.

As already explained, in the present invention, a rigid core having the necessary strength and shape is provided, and poroelastic bodies containing fine magnetic material are attached to the inner and outer surfaces of the core. Adhere each layer. Attach a permanent magnet of the required strength to a predetermined location on the core body. Further, the core body is provided with sufficient space so that the flow path of the fluid is sufficient and the flow is not obstructed. When attaching the poroelastic filter base material, it is compressed and expanded to be attached to the core body, so the fluid flow path built into the filter base material has the same shape and dimensions as when it is installed. A desired mesh filter device can be obtained by controlling the mesh filter to any predetermined value, and overwork can be achieved under the best conditions. In addition, since the sponge-like filter base material is supported by the core body, it maintains a constant position, and the filter layer is not pressed and deformed unevenly, and a constant fluid flow path is maintained and a good Stable filtration efficiency and accuracy can be maintained.

Also, while the filter base material is attached to the core body, the magnetic material in the filter base material becomes magnetized and acts as a magnetic filter, but when the filter base material is removed from the core body, Since the magnetic substance in the filter base material is in a non-magnetized state, according to the filter device of the present invention, cleaning when the filter layer becomes clogged can be easily performed by removing the filter base material from the core body. .

[Brief explanation of the drawing]

1 and 2 are side sectional views of an embodiment of the filter device of the present invention, respectively. FIG. 3 is a perspective view showing one embodiment of the core body of the present invention, and FIG.
This figure is a front view showing the arrangement of permanent magnets in the core body shown in FIG. 3. 1, 6, 7... Core body, 2, 3... Magnetic poroelastic body (layer), 9, 19... Contact surface of layer, 12,
14, 15, 17...Support frame, 13, 16...Space.

Claims (1)

[Claims] 1. Made of a sponge-like organic compound elastic material containing fine magnetic material on both the inner and outer surfaces of a cylindrical core body that has a shape structure that allows fluid to easily pass through and has permanent magnets fixed at multiple locations. A filter device characterized by being equipped with a filter base material.