JPH1157797A - Sludge squeezing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable dealing with an arbitrary sludge treatment scale by providing filter cloth bags opened at bottom parts and having sludge feeding means at upper parts and horizontally movably hung, arranging closing jigs on both sides of the bottom part of each of the filter cloth bags, and also enabling horizontally compressing the filter cloth bags by a compressing device. SOLUTION: In a sludge squeezing process, by a compressing plate 6, a group of filter cloth bags 2, a group of water collecting members 4, and a group of closing jigs 5 are pressurized at the same time. At this time, projected parts 51 and recessed parts 52 of adjacent closing jigs 5 are made to coincide putting the bottom parts of the filter cloth bags 2 to close the bottom part of each of the filter cloth bags 2. In this state, sludge is forcibly fed into the filter cloth bags 2 from sludge discharge pipes 3 to filter it. When a squeezing process is finished, the compressing plate 6 is retreated to the side of a support wall 11 to make the group of the closing jigs 5 that coincided detach themselves from each other. In this way, between the group of the filter cloth bags 2 and the group of the water collecting members 4, clearances are secured to make the bottom parts of the group of the filter cloth bags 5 open naturally. In this state, a vibration applying device 12 is operated to give vibration to the group of the filter cloth bags 2, thereby making fall and discharging the compressed sludge in the filter cloth bags 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a sludge squeezing device.

[0002]

2. Description of the Related Art Conventionally, there is a so-called bag filter as a sludge squeezing device. This bag filter is a single filter cloth bag, and is used in a procedure in which sludge is supplied into the bag, compressed by a filter press device, and then the compressed sludge is taken out.

[0003]

The above-mentioned bag filter has an advantage of a simple structure. However, since it is used alone (one bag type), it can cope with small-scale sludge treatment. The scale above could not be accommodated.

[0004] Further, it is necessary to use a dedicated filter-press device, which increases the cost.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a sludge squeezing device which has a simple structure, can cope with an arbitrary sludge treatment scale, and can reduce the cost. The purpose is to provide.

[0006]

As a means for solving the above-mentioned problems, the present invention relates to a filter according to the present invention, wherein the bottom is opened, the sludge supply means is provided on the upper part, and the filter is suspended horizontally. Provided is a sludge squeezing device comprising a cloth bag, a closing jig arranged on both sides of the bottom of the filter cloth bag to close and close the bottom of the filter cloth bag, and a compression device for compressing the filter cloth bag in a horizontal direction.

According to a second aspect of the present invention, in the sludge squeezing device according to the first aspect, the compression device uses a compression plate arranged adjacent to the filter cloth bag and configured to be horizontally movable.
Provide a sludge squeezing device.

According to a third aspect of the present invention, in the sludge squeezing device according to the second aspect, the compression plate compresses the filter cloth bag and simultaneously presses the closing jig to close the bottom of the filter cloth bag. Provide a sludge squeezing device.

According to a fourth aspect of the present invention, the first to third aspects are provided.
The sludge squeezing device according to any one of the above, wherein a water collecting member is arranged on both sides of the filter cloth bag.

According to a fifth aspect of the present invention, there is provided a sludge squeezing device according to the fourth aspect, wherein a closing jig is attached to a lower end of the water collecting member.

According to a sixth aspect of the present invention, there is provided the sludge squeezing device according to the fourth aspect, wherein a gutter is provided at a lower end of the water collecting member, and a closing jig is attached to a lower portion of the gutter. provide.

According to a seventh aspect of the present invention, there is provided a sludge squeezing device according to any one of the first to sixth aspects, wherein the sludge squeezing device comprises a vibrating device for a filter cloth bag. Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The apparatus of the present invention comprises the following members. <A> Mount As shown in FIGS. 1 and 2, the mount is constructed by supporting both ends of two guide rails 1 arranged in a horizontal direction and in parallel at a predetermined interval by support walls 11. An exciter 12 is provided at an appropriate place on the gantry so that the guide rail 1 can be vibrated.

<B> Filter Cloth Bag The filter cloth bag 2 is a bag made of a filter cloth having an open bottom. A sludge discharge pipe 3 is inserted into the upper end of the filter cloth bag 2,
Rollers 31 attached to both ends thereof are configured to be horizontally movable along the guide rail 1. The number of the filter cloth bags 2 is appropriately set according to the scale of the sludge treatment.

<C> Sludge discharge pipe The sludge discharge pipe 3 has a plurality of discharge holes 32 in the lower part of the peripheral surface thereof, and the sludge inlet pipe 33 is branched and set up. A flexible hose 34 is connected to the sludge inlet pipe 33 so as to follow the horizontal movement of the filter cloth bag 2 and communicates with a sludge pump.

<D> Water collecting member The water collecting member 4 is a plate or a sheet made of a perforated member such as a wire mesh or a perforated plate. This water collecting member 4 is hung by a hanging rod 41 and arranged on both sides of the filter cloth bag 2,
Rollers 42 attached to both ends of the suspension rod 41 are configured to be horizontally movable along the guide rail 1.

This embodiment has a structure in which the water collecting member 4 is folded in two and hooked on a suspension rod 41. Further, a gutter 43 is attached along the lower edge of the water collecting member 4. However, the gutter 43 may not be provided.

<E> Closing Jig The closing jig 5 is a block-shaped member joined along the lower surface of each gutter 43. A convex portion 51 is formed at one end of the closing jig 5 in the horizontal direction, and a concave portion 52 that matches the convex portion 51 is formed at the opposite end.

When the gutter 43 is not provided, the closing jig 5
Is directly attached to the lower end of the water collecting member 4. Further, the closing jig 5 may be hung by a dedicated hanging member without being attached to the lower end of the water collecting member 4. Furthermore, as long as it is a shape that can be closed by sandwiching the bottom of the filter cloth bag 2, a shape having no unevenness or another shape may be used.

<F> Compression device The compression device includes a compression plate 6 suspended at a position closest to the support wall 11, and a compression handle 62 for moving the compression plate 6. The compression plate 6 has rollers 6 on both sides of its upper end.
1 is mounted, and is configured to be movable along the guide rail 1. The compression handle 62 is composed of a screw rod screwed to the support wall 11 and abutting at right angles to the compression plate 6 and a handle for turning the screw rod.

In the present embodiment, the compression plate 6 has a pressing function for both the filter cloth bag 2 and the closing jig 5, but the filter cloth bag 2 and the closing jig 5 are pressed by different pressing mechanisms. It may be in a form. Further, the compression plate 6 may be provided in the vicinity of the support walls 11 on both sides, and may be configured to compress the filter cloth bag 2 from both sides.

[0022]

Next, a method for treating sludge using the apparatus having the above structure will be described. <A> Sludge Squeezing Step As shown in FIG. 2, the compression plate 6 simultaneously presses the filter cloth bags 2 and the water collecting members 4 and the closing jigs 5. Thereby, the convex part 51 and the concave part 5 of the adjacent closing jigs 5 are formed.
2 coincides with each other across the bottom of the filter cloth bag 2. Therefore, the bottoms are closed in a state where the volumes in the respective filter cloth bags 2 are equal.

In this state, the sludge is pressed into the filter cloth bag 2 from the sludge discharge pipe 3 and filtered. The treated water after filtration seeps out of the filter cloth bag 2, flows down the water collecting member 4, flows down to the gutter 43, and is discharged from the gutter 43 to a predetermined place.

<B> Compressed Sludge Draining Step After the squeezing step is completed, as shown in FIG. 3, the compressed plate 6 is retracted to the support wall 11 side, and the matched closing jigs 5 are naturally released. . Thereby, a gap is secured between the second group of filter cloth bags and the fourth group of water collecting members, and the bottom of the second group of filter cloth bags is naturally opened.

Then, the vibrating device 12 is operated to vibrate the filter cloth bags 2 to drop the compressed sludge 7 in the filter cloth bags 2.
Let it drain. At this time, in addition to the vibrating operation, compressed air can be supplied into the filter cloth bag 2 via the sludge discharge pipe 3 to promote the falling and discharging of the compressed sludge 7.

In order to facilitate the detachment of the closing jig 5 group, the compression plate 6 and the closing jig 5 group may be connected by a rope or the like, and may be forcibly detached by the pulling force of the rope.

[0027]

Since the present invention has been described above,
The following effects can be obtained. <B> Since the number of filter cloth bags and the like can be increased or decreased according to the scale of sludge treatment, it can be applied to any scale.

<B> Since the entire apparatus has a simple structure, and it is not necessary to use a conventional filter-press apparatus,
Cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a sludge squeezing device of the present invention.

FIG. 2 is an explanatory diagram of a sludge compression process.

FIG. 3 is an explanatory view of a compressed sludge discharge process.

Claims (7)

[Claims] 1. A filter cloth bag having a bottom part opened, sludge supply means at the top part, and suspended so as to be horizontally movable, and a closure arranged on both sides of the filter cloth bag bottom part to close and close the filter cloth bag bottom part. A jig, and a compression device for compressing the filter cloth bag in a horizontal direction,
Sludge squeezing device. 2. The sludge squeezing device according to claim 1, wherein the compression device is disposed adjacent to the filter cloth bag and uses a compression plate configured to be horizontally movable. 3. The sludge squeezing device according to claim 2, wherein the compression plate compresses the filter sack and simultaneously presses a closing jig to close the bottom portion of the filter sack. 4. The sludge squeezing device according to claim 1, wherein water collecting members are arranged on both sides of the filter cloth bag. 5. The sludge squeezing device according to claim 4, wherein a closing jig is attached to a lower end of the water collecting member. 6. The sludge squeezing device according to claim 4, wherein a gutter is provided at a lower end of the water collecting member, and a closing jig is attached to a lower portion of the gutter. 7. The sludge squeezing device according to claim 1, further comprising a vibrating device for a filter cloth bag.