JPH1043516A - Filter device for separation of solid from liquid, such as sewage and waste water - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filter device for sepn. of solid from liquids, such as sewage and waste water, which has sufficient filtration performance, is easily producible and allows easy backward washing and reuse in case clogging arises as a result of long-term use. SOLUTION: Many wires 1 are densely arranged in juxtaposition in longitudinal and transverse directions, and the other wires, films or members with adhesives are arranged in the required positions of these wires 1 arranged in juxtaposition in such a manner that the directions thereof vary. These wires, films or members with the adhesives are then integrally fixed by means, such as fusing or adhering, etc., to the wires 1, by which bamboo blind-like membrane plates 3 are formed. A cylindrical filter member 6 having a peripheral wall section 7 of a structure obtd. by cylindrically winding these membrane plates 3 and overlapping the membrane plates 3 is constituted. The sewage and the waste water pass this peripheral wall part 7 and flows to the inside and outside of the cylindrical filter member 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter installed in a septic tank or the like for separating solid and liquid such as wastewater and wastewater.

[0002]

2. Description of the Related Art Conventionally, in order to remove sludge floating in sewage or wastewater, a method of filtering, a method of separating by centrifugal force, a method of floating by applying pressure, a method of adding a flocculant, and solidifying are adopted. ing.

[0003] Of these, in the method of filtration, a filtration membrane or the like is generally used in many cases. However, since only one filter membrane has little effect, it is necessary to laminate a large number of filter membranes. However, such a structure in which a plurality of filter membranes are laminated has been troublesome to manufacture. In addition, various materials such as cloth, sand, ceramics, and porous materials are used as the filtering material. However, such a filtering material is likely to be clogged by being used for a long period of time. In such a case, there is a problem that backwashing and reuse are difficult.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a sewage system which has sufficient filtration performance, is easy to manufacture, and is easy to backwash and reuse when clogging occurs due to long-term use. And a filtration device for solid-liquid separation of waste water and the like.

[0005]

SUMMARY OF THE INVENTION The above object is achieved by the present invention, i.e., by arranging a large number of filaments 1 closely in the vertical or horizontal direction, and by providing another line at a required position of the parallel filaments. The line 2, the film or the member with the adhesive, etc. are arranged in different directions, and the line 2, the film, the member with the adhesive, etc. are integrated with the above-mentioned line 1 by means such as fusion or adhesion. The film plate 3 in the form of a drip is fixed to the
Is formed, and the membrane plate 3 is wound into a cylindrical shape to constitute a cylindrical filter member 6 having a peripheral wall portion 7 having a structure in which the membrane plate 3 is layered, and sewage and wastewater pass through the peripheral wall portion 7 to form a cylindrical filter member. This can be achieved by a filtration device for solid-liquid separation of sewage, wastewater, etc., which is made to flow in and out of the filtration member 6.

[0006] The film plate 3 in the slender state can be formed by arranging the filaments 1 having different thicknesses in the order of the thickness.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. First, FIG. 1 shows a membrane plate 3 which is a component of the filtration device of the present invention. This membrane plate 3 has a large number of filaments 1 made of a thermoplastic plastic such as polypropylene, each having a different thickness, which are densely arranged in the longitudinal direction and in the order of the thickness, and in the longitudinal direction of the parallel filaments 1. Another similar thermoplastic filament 2 is arranged laterally at a certain interval at a plurality of locations, and the filament 2 is fused to the above-mentioned filament 1 to be integrally fixed. And has a sloping shape as a whole. In addition, it is also possible to use a film or a member with an adhesive instead of the filament 2. Further, the wire 2, the film, the member with an adhesive, and the like can be fixed by other means such as adhesion instead of fusion. The filaments 1 and 2 may be made of metal fibers, carbon fibers, ceramics, glass fibers, or the like, in addition to the above-mentioned plastics.

As shown in FIG. 3, the above-mentioned membrane plate 3 is wound around the core 4 made of a cylindrical wire mesh a plurality of times to form a tubular shape, and a fixing ring 5 is fitted around the tubular shape. Of the cylindrical filtration member 6. That is, the cylindrical filter member 6 has a multilayer structure in which the peripheral wall portion 7 is formed by the membrane plate 3. The tubular filtration member 6 is wound such that a thick line is on the outside and a thin line is on the inside. The core 4
May be anything other than a wire mesh as long as it has a cylindrical structure with a gap.

FIGS. 2 and 3 show the entire structure of the apparatus. The tubular filtering member 6 has attachment adapters 8 and 9 fitted to both ends thereof, and is detachably mounted inside the case 10. That is, the mounting adapters 8 and 9 are screwed into the openings 11 and 12 provided on the side walls on both sides of the case 10, respectively. The case 10 is provided with entrances 13 and 14 for an undiluted solution 15 of sewage and wastewater. The undiluted solution 15 that has entered the case 10 is removed from the peripheral wall 7 of the cylindrical filtration member 6.
Through to get inside. Then, the filtrate 16 is filtered when passing through the peripheral wall portion 7, and the filtrate 16 flows inside the cylindrical filter member 6 and flows out from one end or both ends.

In the above embodiment, when the cylindrical filtering member 6 is formed from the membrane plate 3, the winding is performed such that the thick line is on the outside, but the thick line is on the inside and is thin. A winding method in which the filament is on the outside is also possible. In the case of such a reverse winding, the undiluted solution 15 is put into the inside of the cylindrical filtration member 6, and the filtrate 16 is poured into the case 1 outside the cylindrical filtration member 6.
Discharge into 0.

[0011]

The filtration apparatus for solid-liquid separation of sewage, waste water and the like according to the present invention is as described above, and has a structure in which the membrane plate 3 is layered by winding a single drip-like membrane plate 3 into a cylindrical shape. Surrounding wall 7
, The peripheral wall 7
Can be sufficiently filtered when the undiluted solution 15 of wastewater or wastewater passes. In addition, there is an advantage that the tubular filtration member 6 can be easily manufactured simply by winding the membrane plate 3 without the trouble of laminating a number of filtration membranes as in the related art. Also,
Since the cylindrical filter member 6 is composed of the sloping membrane plate 3 and the voids are regularly arranged, when the clogging occurs, the backflow of the filtrate 16 to remove the sludge by backflow of the filtrate 16 is performed. Is easy. In particular, there is an advantage that even if a sludge is clogged in the cylindrical filter member 6, the sludge inside the cylindrical filter member 6 can be easily removed by expanding the cylindrical filter member. And since the cylindrical filtration member 6 is a cartridge type, it has the convenience that it can be easily replaced when its performance is reduced. Further, as in claim 2, the filaments having different thicknesses are arranged in the order of the thicknesses, and the film plate 3 in the form of a sludge is formed.
Is formed in a multilayer structure in which, when the cylindrical filter member 6 is formed by winding it, the cross section of the peripheral wall portion 7 changes in order from the thick line to the thin line in the inward and outward directions. Therefore, the structure becomes optimal as a filtering member.

[Brief description of the drawings]

FIG. 1 is a plan view of a membrane plate.

FIG. 2 is a sectional view of the entire apparatus.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Filament 2 Filament 3 Membrane plate 4 Core 5 Fixing ring 6 Cylindrical filter member 7 Peripheral wall 8 Mounting adapter 9 Mounting adapter 10 Case 11 Opening 12 Opening 13 Doorway 14 Doorway 15 Undiluted solution of waste water and waste water 16 Filtrate

Claims (2)

[Claims] 1. A large number of filaments 1 are closely arranged in the vertical or horizontal direction, and another filament 2, a film or a member with an adhesive is placed at a required position of the parallel filaments 1 in different directions. And the filament 2, the film or the member with adhesive are integrally fixed to the filament 1 by means such as fusion or adhesion to form a splayed membrane plate 3. The membrane plate 3 is wound into a cylindrical shape to constitute a cylindrical filter member 6 having a peripheral wall portion 7 having a structure in which the membrane plate 3 is layered, and sewage and wastewater pass through the peripheral wall portion 7 to form a cylindrical filter member 6. Filtration device for solid-liquid separation of sewage, wastewater, etc., which is circulated inside and outside. 2. The filter for solid-liquid separation of sewage, waste water, etc. according to claim 1, wherein the filaments 1 having different thicknesses are arranged in the order of the thickness to form a slender membrane plate 3.