JPS58159827A - Filter device - Google Patents

Abstract

PURPOSE:To develop a filter device which maintains excellent filtering capacity for a long period of time by using a porous synthetic resin body or a porous synthetic resin body contg. magnetic material as a filter body and making the shape of holes changeable with external pressure. CONSTITUTION:Many spherical granular materials 3 made of materials soluble with solvents or having an m.p. lower than the m.p. of a base material 2 of a synthetic resin, a polymer compd. or the like are incorporated in the base material 2. After these materials are melted so as to be dispersed uniformly, the materials 3 are dissolved or melted away with solvents to form many inside holes 3. A fine magnetic material is incorporated in the material 2 in this case and the holes 3 formed in the material 2 are connected by the parts 4, 5 communicating with each other. The magnetic filter 12 formed in such a way is supported in a case with supporting walls 7, 17, 27, and liquid WA to be filtered is passed through the filter through flow passages 28. The filter 12 is compressed with a pressurizing body 20 in this case to filter the liquid. When the holes in the inside are clogged, the body 20 is retreated to the position of dotted lines 22 to expand the holes of the filter 12, whereby the filtering capacity is increased and the filtering capacity is maintained for a long period of time.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a filter in which a solidified mixture of soluble substance particles and a structural resin is used to dissolve the soluble substance and produce a three-dimensional filter.

Conventionally, filters have been used in which a foamed synthetic resin body or a magnetically-containing foamed synthetic resin body is used as a filter base material, and a fluid passage through which air bubbles are communicated is formed. The disadvantage of this filter was that it was difficult to obtain a constant size of the bubble pores and to maintain a constant open bubble passage. Also, the fluid flow path is blocked, preventing fluid passage.

There was a drawback that the three-dimensional and deep transient flow path of the foam was not sufficiently effective.

The present invention uses a porous synthetic resin body or a magnetic porous synthetic 1M resin body that has pores of a certain shape and communication between the pores, and uses external pressure to shape the pores. It is an object of the present invention to provide a filter device that changes the flow rate, changes the communication portion between the holes, and further includes a magnetic layer around the fluid flow path to increase the transit capacity.

The present invention accomplishes this objective as follows. First, make the porous filter material. I will explain how to do that. For this purpose, an inlet chemical substance (hereinafter referred to as an inlet compound, B Similarly, compounds (also referred to as t compounds, O compounds, and D compounds) are used as the base material. Next, a compound B that can be completely and easily eluted with a solvent S that does not dissolve the incoming compound is selected at least K - and mixed as necessary to form spherules of a certain shape and size. Further, one or more compounds having a lower melting mWt and easier melting than the other compounds are arbitrarily selected and mixed as necessary to form spherules having a certain shape and size. The diameter and number of these spherules are determined in accordance with the porosity (the proportion of space occupied within the total filter volume, expressed in terms of porosity) K.

Blend granules of Compound B with the indicated compound, mix uniformly in a container, charge into a predetermined mold, mold, pressurize to such an extent that the granules of Compound B contact and crush each other, Solidify under pressure to create a base material. Next, the B compound is eluted with solvent S to create a porous material with built-in pores in the spheroidal mantle. The pores form communicating pores at the portions where the grains come into contact with each other. The porous body made of these compounds is conveniently flexible.
First, as another example, the melting temperature is low.
The compounds are mixed in a sufficient required composition ratio to form a solidified unit with the D compound, and then heated to melt the 0 compound and form the D
A porous filtration matrix made of a porous compound D is obtained, in which the compound remains, and the pores have a large number of pores with a certain shape and size, and the pores are in contact with the walls of the i+uit pores, and the contact surface is communicated with the contact surface through small holes. .

The effect can be enhanced by adding and dispersing the above-mentioned B compound and D compound in the form of a magnetic substance in the form of fine particles or small pieces, and using the mixture as a magnetic filter.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a filter device using a porous filter material or a porous magnetic base material molded into a predetermined shape and size.The present invention will be described by way of example with reference to the drawings.

The first person's figure is a fresh side view of No. 4, which is a solidified integrated product of a magnetic compound obtained by heating particles forming pores and a compound forming a base material, or a magnetic compound added to the compound. The hole has a relatively large diameter, and the base material is flexible and soft, so that it can be compressed, pressed, expanded, the shape of the hole can be deformed, and the size can be changed.

Particle 3 is a compound A that dissolves in Fi solvent, base 2 is a compound B that is scaly, and particles of magnetic material are mixed according to the purpose. When solidifying a mixture of particles and base material, it is necessary to pressurize it and cool and solidify it in a state where the particles are crushed and in contact with each other. , holes 4.4A, 4B, 5.5A, on the contact surface between adjacent holes 3, 3A and 3B, which were opened by elution.
5B can be communicated. In addition to the holes 3.3A and 3B, the communication holes 4 and 5° are also connected to the body passage (flt).
It is important for the formation of tracts.

FIG. 3A is an exemplary side sectional view of a filter device using this filter base material. The upper lid 8 has an inlet WA for the fluid to be filtered at the upper end, the lower lid 9 has the outlet WB for the clean fluid at the lower end, and the filter supports 9A117 and 17 are reinforced l! 27 constitutes a filtration container. The fluid flows through the upper reservoir space 18
The water flows through the lower merging space 19 and the flow path 28 partitioned by the partition wall 29 shown. Also, in the middle of this flow path, there is a
A filter unit 22 shown in the figure is provided. This unit 22 includes a filtration soft filter section 12 and a pressurizing body 20, and when filtering a fluid, filtration is normally started at the position of the solid line of the pressurizing body 20 shown in FIG. 3A. If the pressure applied to the pressurizing body 20 at this time is P, the internal holes 3 and the like of the filter section 12 are compressed, and at the same time, the diameters of the communication holes 4.5 and the like become narrower. However, in the direction perpendicular to the compressive force, hole 3
etc., the holes 4.5, etc. are enlarged in the longitudinal direction.

As the fluid passes and the inclusions are filtered out and the pores and pores of the filter portion 12 become progressively filled with inclusions - the perturbation rate decreases and the filtration pressure increases. It becomes increasingly clogged and eventually no longer allows fluid to pass through. In order to prevent this, when the clogging has progressed to a predetermined degree, the pressurizing force P is lowered to the direction of the arrow KP', the filter part 12 is advanced to the left in the figure, and the compressed holes 3 are removed. Then, enlarge the diameter of holes such as 4.5. This allows for extremely long filtration times.

When the clogging progresses further and reaches a predetermined filtration pressure, the pressurizing body 20 and filter section 12 are replaced with a new cassette (pressing body 20 and filter section 12) prepared separately. Clogged items can be washed and regenerated, but items that have compressed under pressure during use can be easily washed and regenerated in a short time by releasing the pressure during washing and making the mesh larger. can.

In this way, the absorbance when the diameters of holes 3, etc. in the free state of the filter section 12 and the diameters of holes 4.5, etc. in their natural state are completely enlarged is set to 100, and the absorbance is set to 100, and the absorbance is set to 100. The absorbance when a pressure P is applied is shown for each of the following cases: When the OF filter is attached and there is no pressure, 1F when compressed to 115, 2P when compressed to 1/10 K, and 3P when compressed to 115. Fig. 3B shows the relationship between the absorbance and the OF, IP, 2P, and 3P, when the total magnetic field strength s and ooo Gauss is applied at the same time as the magnetic material contained and the outside when compressed. In the case of magnetic field action, partition walls λ, B, O, D, which also serve as filter partitions shown in the third figure
g.

F is a magnetic pole formed by a semi-hard magnet, and the filter part
, i12 is provided so as to be sandwiched between the upper and lower parts 8,0OO
A magnetic field of G was applied. Each of the filter sections has the same structure as the filter section 12 except for the difference in magnetic substance content.

The water used for electrical discharge machining was mixed with moldy tungsten carbide and was dispersed therein.

In the uncompressed OP state, the same degree of cleanliness was obtained in about one-tenth the filtration time when a conventional soft sponge synthetic resin body was used as a filter.Next, another application was carried out. The present invention will be explained using an example ':). FIG. 1B is a plan sectional view of the filter base material of this example. In this embodiment, the formation of the overfill material 2 and the holes 3 is the same as in the case of the first figure, but in the case of FIG. 1B, the shape and size of the holes 3 are uniform, The difference is that it is made relatively small so that it does not contain any large holes. The shape and dimensions of the hole 3 should be controlled as accurately as possible to make it uniform, and when used, the shape and size of the hole 3 should be controlled as accurately as possible, and when used, K, as shown in FIGS. 4A, 4B, and 40.
In the above embodiment, the diameters of the holes are changed to the pressing force Pf, P', and arbitrary shapes and dimensions are applied, but in this embodiment, the pressure inside the container frame is constant K, , as shown in FIGS. 4B and 40, a constant pressurized state is applied and fixed from the beginning, and the diameter of the hole and the hole do not change no matter how the pressure condition progresses. The initially applied step change is maintained to precisely control the geometry of the fluid passageway, thus making it constant and transient.

FIG. 4A shows an example in which a porous filter 25 shown in (2) K is set in the frame 24 shown in (1) by applying pressure from the surroundings as shown in (3). In FIG. 4B, the inside of the frame is divided into three layers from the top to the bottom at an angle, and the same filter is set under pressure in each part, and a round part 36, a middle part 37, and a finished part 38 are provided from the top. As shown in the figure, the inner diameter of the frame 34 is gradually reduced in pressure from the top to the bottom, and therefore the pressure is gradually increased. In Fig. 40, a temporary part whose inner diameter changes in three stages from the upper part to the lower part K is provided, and a round part 46, a middle part 47, and a finished part 48 are provided, and the same porous-perforated base material is used, but the shapes are different. However, if the filter material of the same shape and size is applied inside the three-stage frame 44, the holes of the filter part of the finished part 48 with the smallest diameter will receive the maximum pressure, and the holes with the largest diameter [146 The holes in the filter section of the filter shall be provided so that they receive the minimum pressure.

In this way, from roughing to finishing, extremely high-precision KFj
jl Control the flow path, keep the pressurized state constant, control and maintain the size of the flow path, - change the pressurizing force according to the excess 11, and perform a good and steady flow. If it is clogged with inclusions, it must be removed by removing the pressure and cleaning it to its free state dimensions.

As already explained, 1 the present invention involves heating elutable particles and an insoluble compound matrix, applying pressure from the outside to crush the contact areas between the particles, and then solidifying and molding the mixture. When the particles are eluted, holes of a certain shape and size are formed, and holes that communicate with adjacent holes are formed to pass through each hole to form a fluid passage, or furthermore, a part of the compound is formed. A magnetic material is added to and mixed into the overcoating material, solidified, and molded to a predetermined size to form a flexible filter section. Then, this filter part is deformed into a bottle or expanded by compressing the shape and size of the built-in holes by applying a certain external pressure.
The device controls release from compression to reduce the amount of compression, and always maintains the filter portion in a state where the pores and the shape and size of the pores are uniformly distributed throughout. The process should be divided into multiple stages.

A fixed filter base material is set by changing the diameter of the support frame and changing the size of the built-in holes by applying pressure. Removal of inclusions or cleaning of a filter portion that has been sufficiently rounded can be easily carried out by removing the pressure and leaving the pores free.

As described above, since the filter device of the present invention is used by compressing and enlarging the filter portion, the holes built into the filter portion and the shape and dimensions of the holes may be larger or smaller than the size and shape when in use, and may be modified in a deformed manner. A series of controls such as mixing of particles and compound base material, pressure solidification molding, elution of particles, etc. in the filter manufacturing process can be easily performed, making it easy to manufacture colors and filter parts. Attachment to the filter device during use: The filter can be set in holes of any size and shape by controlling compression and expansion to perform filtration work in the best condition.

The large number of holes built into the filter and the shape and dimensions of the holes are crushed by pressure (4). Improves effectiveness. It is possible to control the pressurizing force, control the shape and size of the holes, and continue constant filtration for a long time. can. Furthermore, any filter device from rough cutting to finishing can be constructed using the same filter section. With this K, it is possible to control filtration and perform fluid filtration with much higher precision and accuracy. -When washing after washing, release the pressure.
It can be made into a much more detailed $JIK book. It also has a very significantly good transient efficiency and is very simple to use.

[Brief explanation of the drawing]

The first person's figure is an illustrative side sectional view of a filter part, and FIG. 1B is an illustrative plan sectional view of another filter part. 21A is a cross-sectional view illustrating an example in which built-in holes are communicated with pressurized holes. The third person's figure is a side cross-sectional view of one embodiment of the present invention, FIG. Figure 4C is a top view of another applied embodiment of the present invention. l... Filter element 2... Filter base material 3... Built-in hole 4.5...
・Communication hole, hole 7, 17.27.24.34.44... Chic, B,
O, D, R, F... Partition/filter P, P'.
... Pressure force W on, WB... Fluid direction 12, 25. 26. 36. 37. 38. 4
6. 47. 48...Filter part patent applicant Benjo Japax Research Institute Co., Ltd.
Buried Patent Attorney Naka Nishi - 14th I
! l Fig. 1B Fig. 3B (斥鿼千・で跟demand-壬) @Fig. 3A H Fig. 4A

Claims (1)

[Claims] 1. A filtration base material is provided with a large number of pores and holes communicating between the pores on the surface where these pores connect with other adjacent pores, and these communicating pores are uniformly distributed throughout the entire filtration base material. A filter part that has an opening on the surface and has a built-in fluid flow path distributed therein, and a wrinkled filter part that is uniformly compressed and expanded, and a free KL, t or any of these can be selected. and a filter mounting support frame that supports the built-in communication hole by changing the shape and size, and providing at least one or more filter layers each having a fluid flow path with a constant shape and size necessary for a transient process; Planar and three-dimensional P
A filter device that is suitable for 2. The filtration base material is a mixture of a synthetic resin and a magnetic material, uniformly distributed, integrated, and passed through a large number of built-in holes to form a uniform fluid flow path, as set forth in claim 1. filter device. An upper lid with a 3flL body inlet, a lower lid with a fluid outlet, and a body with a filter section between the upper lid and the lower lid, and between the upper part of the cough body and the upper lid and between the lower part of the cough body and the lower part. A fluid confluence space is provided between the lids, and inside the body,
A filter part and a pressurizing body for the cough filter part are provided in the center of the body, and the pressurizing body is provided according to the filtration process. A filter device in which the size and shape of a communication hole built in a filter part can be controlled almost uniformly to a desired value by applying force. 4. The filter device according to claim 3, wherein magnetic poles are provided on the upper and lower fluid flow path forming partitions of the body in which the filter portion is provided in the center.