JPS6071018A - Filter element - Google Patents

Abstract

PURPOSE:To increase a filtering area by increasing resistance against external force, by imparting a minute corrugated pattern to at least one of a flat filter material and a corrugated filter material before laminating and adhering both of them. CONSTITUTION:A flat filter material 1a, to which a large number of minute corrugated patterns are formed in the width direction thereof, that is, in the ridgeline direction of a corrugated filter material, and a corrugated filter material 3a are adhered to form a single surface corrugated molded body which is, in turn, wound around a core material or wound as it is to form a cylindrical molded filter element. As the filter materials 1a, 3a, filter paper, ceramic fiber paper, carbon fiber paper, glass fiber paper, cloth or a metal net can be used. In this case, in order to form a laminated shape, the single face corrugated molded body may be cut in a definite shape and superposed to form a square pole.

Description

DETAILED DESCRIPTION OF THE INVENTION As shown in FIG. 1, a long planar furnace material 1 and a long corrugated furnace material 3 having ridge lines 2 approximately in the width direction are laminated and bonded, and one end of the corrugated furnace material 3 is bonded. The peaks and the troughs at the other end are filled with a sealing material 4.5, or the planar furnace material 1 and the corrugated furnace material 3 are laminated and bonded as shown in FIG. As shown in 6, the peaks at one end of the multi-wave furnace material 3 and the joints at the other end are sealed by crushing and adhering them and filling the troughs at the other end with a sealing material 5 to form a nine-wave molded body. None, as shown in Fig. 3, a filter element formed by winding the single-wave molded body around a core material or by winding only the single-wave molded body and forming it into a cylindrical shape was already produced in June 1952.
United States Patent @ 2,599,60 issued on March 10th
No. 4, it is disclosed as a disposable filter element.

This filter element has a large number of small diameter holes extending from one end surface of the cylinder to the other end surface, and half of the small diameter holes are sealed at one end surface and the other half are sealed at the other end surface.
As shown in the figure, the fluid 8 flowing in from one end surface passes through the furnace materials 1 and 3, which have an extremely wide area, and is discharged through the outlet, so it has an extremely large filtration capacity compared to the volume it occupies. The present invention aims to further increase the filtration area of the planar furnace material 1 and/or the corrugated furnace material 3 by imparting a fine wave pattern to the planar furnace material 1 and/or the corrugated furnace material 3, thereby increasing the filtration capacity.

To explain the embodiment with reference to the drawings, as shown in FIG. 5, a planar furnace material 1a and a corrugated furnace material 3a having a large number of fine wave patterns formed in the width direction, that is, the direction of the ridgeline of the corrugated furnace material are bonded together. This is a filter element formed by forming a single-wave molded body into a cylindrical shape by winding the single-wave molded body around a core material, as shown in FIG. 3, or by winding only the single-wave molded body.

In order to manufacture and use the filter element of the present invention, even if ti [
In Fig. 6, a pair of forming rollers 9 and 10 having a desired tooth pattern are in mesh with each other, one forming roller 10 is in contact with the pressure roller 11, and the pressure roller 11 is in contact with the pressing roller 11, The rotation speed is almost the same.

Reference numeral 12 denotes an adhesive applicator, which includes an adhesive container 12a and an adhesive applicator roller 121), and the adhesive container 12aK contains the adhesive 13. The adhesive application roller 121) has its upper end in contact with the molding roller 10 and its lower part dipped in the adhesive 13. Drive or molding - driven by the rollers 9 and 10. 14,1
5, 16, and 17 are stamped rollers each having a fine wave pattern engraved in the axial direction. 1B is a filler impregnating device with a polymeric substance; a filler container 1B & a guide roller 181) and a squeezing roller 18c); a filler container 18a is filled with solutions, dispersions, or liquids of rubber, plastics, starch, etc.; A filler 19 made of a dispersion of polymeric substances such as oligomers and inorganic substances such as silica and alumina is added.

A long filter paper 1.3b rolled up into a roll and a soft sponge strip 4a made of soft polyurethane foam, foam rubber, etc. are prepared, and the filter paper 3b is passed through the meshing part of the patterned rollers 16 and 1 to form a fine wave pattern.

After applying (5), the guided wave FJ3a is molded to the shape of the meshing part of the molding rollers 9 and 10, and then the adhesive coating device 12 applies adhesive 3 in a linear manner to the crest of the wave. . The filter paper l is passed through the meshing portion of the molding rollers 14 and 15 to form a fine wave pattern (1a), and then guided to the contact portion between the molding roller 10 and the pressure roller 11, while a soft sponge strip 4a is formed on the filter paper l.
A flat paperboard 1a is impregnated with a filler 19 through a filler impregnating device 18 to form a sealing material 4, and is then provided with a fine wave pattern.
At the same time, the sealing material 4 is introduced between the stamping roller 1o and the pressing roller 1, and the sealing material 4 is sandwiched between the planar filter paper 1a and the corrugated filter paper 3a at one end edge thereof, and both filter papers 1a are simultaneously inserted.

3a is glued together, dried if necessary, and rolled up to form a single-wave molded product.

In order to obtain a single-wave molded body with the seal 6 shown in FIG. 2, instead of filling the sealing material 4 with the device shown in FIG. 6 in the step @1 described above, the adhesive 13 is not applied to the end portion. , a seal 6 is formed by applying an adhesive to the rear core part of the filter papers 1a and sa and pressing them together to form a flat pressure.

FIG. 7 shows the second step, and in the figure, 20 is an adhesive applicator, and the adhesive container 20a and the adhesive applicator roller 20m) are connected to each other, and a presser roller 21 is installed as necessary to the adhesive container 620a. Add adhesive 13.

22 is a filler impregnating device, and the filler 19 is put into the filler container 22& through a filler container 22a, a guide ruler 22b, and a squeezing roller 22c. Note that 23 is a presser roller.

The adhesive 13 is linearly applied to the wave crest of the corrugated furnace material 3a by the adhesive coating device 20 on the single wave molded body once rolled up in the first step, and then the filler impregnating device 22 is used to soften the corrugated material. The sealing material 5 in which the sponge strip 5a is impregnated with the filler 19 is guided by the press roller 23 to the edge opposite to the edge where the sealing material number was inserted in the first step, and the single-wave molded body is rolled up. take. After that, the adhesive 13 attached to the filter paper and the filler 19 impregnated in the sealants 4 and 5 are dried or hardened, and the peaks at one end of the corrugated filter paper 3a and the troughs at the other end are formed as shown in FIGS. 3 and 4. A cylindrical filter element with a complete seal of 4.5 is obtained.

In the above embodiments, filter paper was used as the furnace materials 1a and 3a, but the furnace materials 1a and 3a may be made of various materials depending on the properties of the fluid to be treated, such as ceramic fiber paper, carbon fiber paper, glass fiber paper, etc. Paper or cloth, or wire or other mesh can be used.

Furthermore, in the above embodiments, a filter confectionery in which a single-wave molded body is wound and formed into a cylindrical shape has been described, but the single-wave molded body is cut into a constant circumference such as a square or a diamond shape, and a large number of pieces are stacked as shown in FIG. 8. In addition, the filter element may be formed into a quadrangular prism or other three-dimensional shape.

In either case, after the adhesive and sealing material have dried or hardened, a polymeric substance such as epoxy resin, polyester resin, polyvinyl acetate, polyvinyl chloride, starch, or silica sol or alumina sol is applied to both end faces of the filter element to reinforce the end faces of the filter element. It is desirable to impregnate with an impregnating agent such as an inorganic adhesive, paint, or a mixture thereof in the form of a solution, dispersion, or liquid low polymer, and then dry or harden.

3a was used, but a single-wave molded body of a planar furnace material 1a with a fine wave pattern as shown in FIG. 9 and a corrugated furnace material 3 without a fine wave pattern as shown in FIG. A filter element may be formed using a single-wave molded body of a flat furnace material 1 without a wave pattern and a corrugated furnace material 3a with a fine wave pattern.

Figures 11 to 14 show other examples of single-wave molded bodies used in the filter element of the present invention. An example of laminating a corrugated F#3a with a fine wave pattern in the direction, FIG. 12 shows a planar furnace material 1a with a fine wave pattern in the width direction and a flat furnace material 1a with a fine wave pattern in the length direction. FIG. 13 shows an example in which a planar furnace material 1d with a fine wave pattern in the longitudinal direction and a corrugated furnace material 3 without a fine wave pattern are laminated together. FIG. 14 shows an example in which a planar furnace material 1 without a fine wavy pattern and a corrugated furnace material 31 having a fine wavy pattern in the length direction are laminated together.
Each of the single-wave molded bodies shown in FIGS. 9 to 14 is laminated to obtain a filter element by sealing the peaks at one end of the corrugated furnace material and the troughs at the other end as shown in FIG. 1 or 2.

As described above, the present invention involves laminating and bonding a long planar furnace material and a long corrugated furnace material #1 having a ridge line in the width direction, and forming a ridge at one end of the corrugated furnace material and a trough at the other end. In a filter element having an extremely large filtration effective area compared to its occupied volume, which is obtained by sealing and laminating the single-wave molded body, one or both of the planar furnace material and the corrugated furnace material have microscopic particles. Since the waveform pattern was given, the size of the filter element, the length of each small diameter hole, the wave height of the corrugated furnace material shown by h in Fig. 5, and the wavelength of the corrugated furnace material shown by χ in Fig. 5 are all the same. In this case, the effective area of the part with the fine wavy pattern increases by 1.2 to 1.6 times, and therefore the filtration capacity increases, which makes it suitable for use. ] It has the characteristic effect that it is possible to reliably perform lamination molding without causing poor adhesion during adhesive lamination of single-wave molded products.

In addition, when the directions of the waves of the fine wave pattern provided on the planar furnace material and the corrugated furnace material do not match as illustrated in FIGS. 11 and 12, or when the waves are If a fine wavy pattern is applied to one of the shaped furnace material and the corrugated furnace material, and the ridgeline of the wave of the fine wavy pattern intersects the ridgeline of the wave of the corrugated furnace material, single-wave forming is applied. During the manufacturing and lamination of the body, the bonding points of both furnace materials are not linear but are bonded intermittently at many points, so conventional bonding methods and those shown in Figs. 5, 9, and 10 are not suitable. Compared to the adhesive method in which the adhesive is applied linearly, the adhesive application area, that is, the area where the adhesive loses its filtration ability, is reduced.
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[Brief explanation of drawings]

Figures 1 to 4 illustrate conventional filter elements; Figures 1 and 2 are perspective illustrations of a single-wave molded body for manufacturing filter elements; Figure 3 is a perspective view of a cylindrical filter element; 4 are cross-sectional views taken in a plane parallel to the planar furnace material 14c of the filter element shown in FIG. 3. 5 to 14 show embodiments of the present invention, FIG. 5 is a perspective explanatory view showing an example of a single-wave molded body used in manufacturing the filter element of the present invention, and FIG. FIG. 7 is a perspective explanatory view showing an example of the manufacturing process of the single-wave molded body shown in FIG. , FIG. 8 is a perspective explanatory view showing an example of a square prism-shaped filter element, and FIGS. 9 to 14 are perspective explanatory views showing other examples of single-wave molded bodies used for manufacturing the filter element of the present invention. It is. In the figure, 1 is a planar furnace material, 3 is a corrugated furnace material, 4 and 5 are sealing materials, and 9. IO is a molded roller, 1U is a crimping four-ra, 12.2
0 is an adhesive applicator, and 14 to 1 are molded rollers that apply a fine wave pattern to the furnace material. Agent Benko - Calculation 5 situation calculation + reason and answer 7 diagram call 914 #101 diagram Buddha II diagram calculation 12 diagram tL 滲 / 31z 茅 l ten diagram

Claims (1)

[Scope of Claims] A fine wavy pattern is provided to at least one of a flat furnace material and a corrugated furnace material having a ridgeline substantially in the width direction, and the planar furnace material and the corrugated furnace material are bonded together. A filter element formed by stacking single-wave molded bodies by sealing the peaks at one end and the troughs at the other end of a corrugated furnace material. 2 Adhere both furnace materials so that the ridgeline of the fine surface wave pattern given to the planar furnace material or the corrugated furnace material is not parallel to the ridgeline of the fine waveform pattern of the corrugated furnace material or the planar furnace material to be adhered to the furnace material. A filter element according to claim 1.