JP6119967B2 - Filtration unit and muddy water treatment apparatus - Google Patents

Description

  The present invention relates to a filtration unit including a filtration cartridge incorporating a filtration filter for purifying turbid water, and a turbid water treatment apparatus including the filtration unit.

In the patent document 1, the present applicant has proposed a muddy water treatment apparatus in which a filter for purifying muddy water is installed horizontally in a tank in order to prevent reduction of the effective area of the filter due to being buried with sediment.
Specifically, the filter is formed by forming a filtering material into a columnar shape, and the columnar filters are alternately installed in the vertical direction. And in a notch tank, a filter is installed between the inflow side partition material which has an inflow port below, and the drainage side partition material which has a drain outlet above.

Further, in the patent document 2, the applicant of the present invention arranges filters for purifying muddy water horizontally so that the filter can be easily installed in the tank while preventing the effective area of the filter from being buried by sediment. There has been proposed a filtration unit comprising a cartridge to be accommodated and a leg that is detachably attached around the lower surface of the cartridge.
Specifically, the cartridges are stacked in a plurality of stages in the vertical direction. The cartridge is configured by removably attaching a net to the upper and lower surfaces of the frame. And the packing material for water leakage prevention with the tank inner surface is provided in the outer peripheral surface of a cartridge. In addition, a packing material is provided around the net body to prevent water leakage with the cartridges stacked one above the other.

  Conventionally, the cylindrical filter is cartridge type for easy handling, and rubber or sponge water leakage prevention materials are attached between the filters and the filter outer periphery to prevent cartridge leakage. It was.

JP 2011-161389 A JP 2012-143728 A

  Conventionally, however, rubber or sponge water leakage prevention materials have also been attached to the gap between the outer periphery of the cartridge frame and the water tank. However, there is a limit to following the deformation of the water tank due to the water pressure during service, and this part is the water leakage. There was a cause. Further, there has been a problem that the welded portion between the partition plate and the notch tank is broken due to the deformation.

  The subject of this invention is providing the filtration unit which does not have a worry of water leakage, even if a water tank deform | transforms outside.

In order to solve the above problems, the invention described in claim 1
Filtration filters that purify muddy water are stacked side by side and stacked one above the other, and the joints arranged side by side are accommodated in the frame in a state where they are not continuous vertically, and a filtration cartridge in which the upper and lower surfaces are formed of a net ,
A box for storing the filtration cartridges stacked one above the other ;
Legs that support the box also serving as pillars at the four corners of the box;
A filtration unit comprising a lifting jig at four corners on the upper surface of the box .

The invention described in claim 2
The filtration unit according to claim 1,
The box has an opening on a bottom surface.

The invention according to claim 3
A muddy water treatment apparatus in which the filtration unit according to claim 1 or 2 is installed in a water tank.

  According to the present invention, since the box of the filtration unit is independent of the water tank, there is no concern about water leakage even if the water tank is deformed outward.

It is a perspective view which shows the structure of one Embodiment of the filtration filter to which this invention is applied. It is the longitudinal cross-sectional view which showed the example of installation to a water tank. It is a disassembled perspective view of a filtration cartridge and a filtration unit. It is the figure which showed the state which accommodated the filtration cartridge of FIG. 3 in the filtration unit. It is an expansion perspective view of a filtration cartridge. It is the perspective view which showed the example which provided the hanging jig | tool by seeing through the side surface of the filtration cartridge.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.
(Embodiment)
FIG. 1 shows a configuration of an embodiment of a filtration filter 1 to which the present invention is applied. 1A is an A type filtration filter and 1B is a B type filtration filter.

  As shown in the figure, the shape of the filtration filter 1 is a substantially flat and rectangular shape in plan view.

Here, as the filtration filter 1, a biolog natural filter (Biolog is a registered trademark) in which a dried plant body is formed into a flat shape and wrapped with a net of the same quality is used. In the illustrated example, it is divided into five.
For example, the weight of the A type flat filtration filter 1A is 9 kg / piece, and the weight of the B type flat filtration filter 1B is about 14 kg / piece.

In the illustrated example, three A-type flat filtration filters 1A are arranged side by side, and two B-type flat filtration filters 1B are arranged side by side.
In addition, when dividing | segmenting in this way, it is preferable from the surface of a water-leakage prevention function that the vertical joining surface located in a line with filter 1A * 1B does not continue up and down as shown in the figure.

  FIG. 2 shows an example of installation in the water tank T. A filtration cartridge 2 in which a flat filtration filter 1 is densely accommodated is set in a box 11 of a dedicated filtration unit 10 in two stages in advance, and the filtration unit 10 Is installed independently in the water tank T.

  FIG. 3 shows the filtration cartridge 2 and the filtration unit 10.

  As shown in the figure, the box 11 having an open top surface has an opening 12 on the bottom surface, and has a structure in which a rubber plate 13 is improved around the opening 12 to strengthen the water stop. A double leg 14 is also provided. And the box 11 is equipped with the pipe 15 for water flow on the side, and the hanging jig 16 is provided in the four corners of the upper surface. Thus, the hanging jig 16 is provided in the box 11, and the filtration unit 10 can be installed with a crane.

  In the illustrated example, the filtration cartridge 2 is provided with a detachable hanging jig 6 in the vicinity of the four corners of the upper surface.

  FIG. 4 is a view showing a state in which the filtration cartridge 2 is accommodated in the filtration unit 10.

  As shown in the figure, the filtration cartridges 2 are accommodated in the box 11 in two layers, and the upper filtration cartridge 2 is fixed to the side surface of the box 11 with a stopper 17 to prevent the cartridge from being lifted by buoyancy.

  FIG. 5 is an enlarged view of the filtration cartridge 2.

  As shown in the figure, the filtration cartridge 2 has a mesh body 4 attached to the upper and lower surfaces of a frame 3 that covers all side surfaces.

  As shown in FIG. 2, since the box 11 is submerged in the water tank T, deformation due to water pressure hardly occurs, and the muddy water to be treated preferably passes through the box 11 as indicated by the dotted arrow. To come. In the illustrated example, a partition plate 18 is provided in the box 11.

The box 11 only needs to be strong enough to hold the weight of the cartridge 2.
Further, as shown in the figure, a pipe 15 may be provided in the box 11 to let it flow down naturally, or a purified muddy water may be drawn out by a submersible pump (not shown).

  FIG. 6 is a perspective view showing an example in which the hanging jig 6 is provided by making the side surface of the filtration cartridge 2 transparent. In this example, the flat filter is vertically divided into two.

As mentioned above, according to the flat filtration filter 1 of embodiment, the point contact surface which was the subject of the conventional cylindrical filter is lose | eliminated, and the physical weak point on water leakage can be eliminated.
Moreover, since the flat filtration filter 1 put into the filtration cartridge 2 is divided, it can be handled easily by human power, so that the filter replacement operation becomes easy.
Therefore, for example, the present invention can be applied to a site where replacement by crane work cannot be easily performed in a narrow place.

And according to the filtration unit 10 of embodiment, since the exclusive box 11 and the water tank T are independent, even if the water tank T deform | transforms outside with water pressure, there is no worry of water leakage.
Therefore, the present invention can be applied without being restricted by the shape of the water tank prepared on site.
In addition, the water stop work and installation work can be reduced.

(Modification)
In the above embodiment, the water flows from the bottom to the top with respect to the flat filter, but the present invention is not limited to this, and the water flows from the top to the bottom or in the lateral direction. It may be allowed to flow.
Further, in the embodiment, a biolog natural filter obtained by compression-molding a dried plant body is used. However, a filter other than a molded body obtained by compression-molding a dried plant body, for example, a loop-shaped molding cord using fine fibers, or a thermoplastic synthetic material. It may be a porous material or the like in which resin is heated and melted and extruded from a nozzle, the fibers are stacked while curled, and the mutual contacts of the fibers are welded and integrated.

Furthermore, in the embodiment, the cartridge is a unit in which the upper and lower cartridges are stacked in two stages, but may be three or more if necessary. In that case, the number of cartridges can be adjusted by adjusting the height of the legs.
In the embodiment, a flat filter is used. However, the filter cartridge may contain a columnar filter or another filter.
Further, the shape of the filtration cartridge, the unit, the water tank, the position of the inflow port, the position of the drain port, etc. are arbitrary, and it is needless to say that the specific detailed structure and the like can be appropriately changed.

DESCRIPTION OF SYMBOLS 1 Flat filter 2 Filtration cartridge 3 Frame body 4 Net body 5 Frame body 6 Lifting jig 10 Filtration unit 11 Box 12 Opening 13 Rubber plate 14 Leg 15 Pipe 16 Hanging jig 17 Stopper 18 Partition plate T Water tank

Claims (3)

Filtration filters that purify muddy water are stacked side by side and stacked one above the other, and the joints arranged side by side are accommodated in the frame in a state where they are not continuous vertically, and a filtration cartridge in which the upper and lower surfaces are formed of a net ,
A box for storing the filtration cartridges stacked one above the other ;
Legs that support the box also serving as pillars at the four corners of the box;
A filtration unit comprising a hanging jig at four corners on the upper surface of the box .   The filtration unit according to claim 1, wherein the box has an opening on a bottom surface.   A muddy water treatment apparatus, wherein the filtration unit according to claim 1 or 2 is installed in a water tank.

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