JPH01258710A - Filter cloth hanger of filter press - Google Patents

Abstract

PURPOSE:To release even fine filter cake from a filter cloth by providing an oscillating member free to rotate to a member for supporting a free-to-oscillate filter cloth hanging member, oscillating the oscillating member to oscillate the filter cloth hanging member in the direction separating from the filter plate. CONSTITUTION:Filter cloth hanging rods 2 and 2 are fixed and made movable in practically vertically and longitudinal directions with respect to a filter plate 1, and the filter cloths 5 and 5 are vertically fluttered in the practically longitudinal and vertical directions with respect to the filter plate 1 by the oscillation of an oscillating plate 12. As a result, even the fine filter cake deposited on the filter cloths 5 and 5 can be effectively released from the filter cloth 5. Namely, the filter cloths 5 and 5 are moved even in the practically longitudinal direction and fluttered with respect to each face of the filter plate 1, the efficiency in releasing the filter cake from the filter cloths 5 and 5 can be remarkably improved as compared with the conventional process wherein the filter cloths 5 and 5 are moved in the practically vertical direction along the front and rear faces of the filter plate 1.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a filter press that supports a filter cloth hanging member that suspends and supports a filter cloth between filter plates so as to be movable approximately in the front-rear direction of the filter plates. This invention relates to a filter cloth hanging device.

Based on the conventional technology υ, various structures have been considered for filter cloth hanging devices for this type of filter press. For example, the present applicant previously filed an application for a filter cloth hanging device having the following configuration.

That is, in the bipedal filter cloth hanging device, hollow supports are fixed to the handles on both sides of a convex filter plate, and each end of the filter cloth hanging member is attached to the upper part of the support, extending along the axial direction. A biasing member is built into each of the supports, and a bearing member is placed above the L-leg biasing member in each of the supports along the axial direction of the support. Insert freely into (
2, and the bearing member is generally configured to support each end of the bipedal filter cloth hanging member inserted through the gap in the support body.

” In the Nikki groove formation, llJ! After temporarily opening the frame, the filter cloth hanging member or the like is struck with a vibrating plate of a vibrating device to lower the filter cloth, thereby loosening the filter cloth. Thereafter, the filter cloth hanging member is raised by the biasing force of the biasing member to return the filter cloth to its original state where it is stretched along each front and rear surface of the filter plate. By repeating these operations, the filter cloth is moved substantially downward, and the filter residue is peeled off from the filter cloth.

However, in the above-described structure, each filter cloth hardly moves in the backward direction and simply loosens.
The amount of movement of the filter cloth in the approximately front-back direction of the filter plate is small, so even if the filter cloth hanging member is moved up and down by the vibration device, the filter cloth only moves in the downward direction of the road, and the filter cloth remains approximately in the front and rear directions of the filter plate. There was a problem that it did not flutter so much in the direction, and that fine filter residue was difficult to peel off from the filter cloth.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a filter cloth hanging device for a filter press that can effectively separate even fine filter residue from a filter cloth in order to solve the above-mentioned problems.

Means for Solving the Problems In order to achieve the objective, the present invention includes a support member above the filter plate, a filter cloth hanging member is swingably supported on the support member via a lever, and , a swinging member is rotatably provided on the support member, and the swinging member is driven by the driving member to swing the filter cloth hanging member in a direction forcibly separating from the filter plate. The filter was constructed so that the cloth could be made to flutter significantly against the filter plate to peel off the filter sludge from the filter cloth. That is, a filter cloth hanging device for a filter press is provided in which filter cloth hanging members for suspending and supporting a filter cloth disposed between adjacent filter plates in the front-back direction are movably supported in substantially the front-back direction. A lever is provided at each end of the member, and a support member for swingably supporting the lever is provided on the filter plate so as to be disposed above the filter plate, and is in contact with the filter cloth hanging member so that the support member swingably supports the lever. A filter cloth swinging member having a swinging portion for moving the filter cloth hanging member in a direction away from the filter plate and having a driving protrusion at an upper end portion is rotatably provided with respect to the support member, and the filter cloth A driving member that contacts the driving protrusion of the swinging member from above and rotates the swinging member with respect to the support member is provided so as to be located above the filter plate at least when the filter plate is opened. .

Furthermore, in the above structure, a support is fixed to both sides of each of the filter plates, and has a gap in the upper part that extends along the axial direction and into which each end of the support member is inserted so as to be movable along the axial direction. and a biasing member built into each of the supports;
A bearing member that is movably inserted into each of the supports above the biasing member along the axial direction of the support and supports each end of the support member inserted through the gap of the support. It may be configured to include the following.

Effect of the Invention In the above configuration, after the filter plate is opened, the driving member is brought into contact with the driving protrusion of the swinging member to swing the swinging portion of the swinging member around the support member, and the swinging member is moved around the supporting member. The moving part is brought into contact with the filter cloth hanging member, and the filter cloth hanging member is swung in a direction away from the filter plate, and the filter cloth is fluttered approximately along the front-rear direction of the filter plate to remove filter residue from the filter cloth. Peel off.

Further, in the case where the support member is attached to the filter plate so as to be movable along the vertical direction, the operation is as follows.

That is, when a driving member, such as a diaphragm of a vibrating device, contacts the swinging member and lowers the support member, the bearing member along with the support member within the support body resists the biasing force of the biasing member. At the same time as the diaphragm descends, the driving protrusion of the swinging member comes into contact with the diaphragm, and the swinging part of the swinging member swings around the opening of the support member and comes into contact with the filter cloth hanging member. The filter cloth hanging member is moved together with the filter cloth in a direction away from the filter plate. When the diaphragm or the like separates from the support member, the support member rises together with the bearing member due to the biasing force of the biasing member, and the swinging portion of the swinging member absorbs the filter cloth's own weight and tension. etc., the support member is swung in the opposite direction to the above, and the filter cloth hanging member is also swung in the opposite direction to bring the filter cloth closer to the filter plate side again. By repeating this operation, the filter cloth flaps significantly against the filter plate, and the filter residue is peeled off from the filter cloth.

Effects of the Invention According to the above structure, the driving member causes the swinging part of the swinging member to swing around the support member opening, and moves the filter cloth hanging member together with the filter cloth in a direction away from the filter plate, thereby causing the filter cloth to flap. Since it is allowed to soak, even fine filter residue can be effectively peeled off from the filter cloth.

That is, since the filter cloth flutters against the filter cloth more than when the filter cloth is simply moved downward on the road parallel to the front and rear surfaces of the filter plate, the removal rate of filter residue is improved.

In addition, when the supporting member is attached to be movable in the downward direction on the road relative to the filter, the supporting member is lowered by the driving member, and the swinging portion of the swinging member is rotated by the driving member around the support member opening. After the filter cloth is once moved in a direction away from the filter plate via the filter cloth hanging member by the swinging portion, the support member is raised by the biasing force of the biasing member, and the filter cloth is moved away from the filter plate. Since the filter cloth is brought closer to the side, the filter cloth flaps significantly against the filter cloth both in the vertical direction and approximately in the backward direction, and even the fine filter residue attached to the filter cloth is peeled off from the filter cloth. I can do it.

EXAMPLES Below, examples according to the present invention will be explained in detail based on FIGS. 1 to 3.

First, a schematic structure of a well-known filter press to which the filter cloth hanging device for a filter press according to this embodiment is applied will be described. That is, the filter press has a large number of filter plates 1. . . . 1 is disposed so as to be freely movable back and forth, and a filter cloth hanging rod serving as a filter cloth hanging member suspends and supports a pair of filter cloths 5.5 between the filter plates 1.1 above each filter plate IJJ. 2, 2, and by moving the movable plate to remove the large number of filter plates 1.
．． . . , a pair of filter cloths 5 between each filter plate 1.1.
, 5 to perform filtration by supplying the stock solution. On the other hand, by moving the movable plate in the opposite direction to the above, the filter plate chamber..., l
is opened and the filter residue held between the pair of filter cloths 5.5 between the filter plates 1 and 1 is removed. Each filter plate I has a handle 1a projecting laterally on both sides thereof.

1a, each of the handles 1a is supported on each guide rail 4 installed between the front and rear stands so as to be slidable back and forth, and each filter plate! I am trying to guide the movement of people. A bag portion 5a is formed at the lower end of each of the filter cloths 5 by sewing,
The bag portion 5a is inserted into the support rod 1c fixed between the support frames lb supported below the filter plate 1, and the lower end of the filter cloth is fixed.

As shown in Fig. 1.2, the filter cloth hanging device applied to this filter press is provided with a lever 7 at each end I of the filter cloth hanging rod 2, and supports the lever 7 in a swingable manner. A support rod IO is provided as a support member, and a rocking plate 12, 12 as a filter cloth rocking member is swingably provided on the support rod IO. Furthermore, the filter cloth hanging device is arranged so that each of the filter plates l
A support body 3.3 is fixed to a predetermined location of both handles la, la, respectively, and within each support body 3 is a coil spring 9 as a biasing member and a bearing member biased upward by the coil spring 9. 6 are built into the support body 3 so as to be movable along the axial direction of the support body 3, and the support rods ! 0
is roughly configured by fixing it.

Each of the above-mentioned supports 3 is made of a member having a hollow square frame shape in cross section,
It is fixed to the upper side surface of each filter plate 1 and to the upper surface of each handle 1a so as to protrude upward. The side surface of the support 3 on the filter cloth side is provided with a long if 3 a as a gap extending along the axial direction and having an open upper end.

Each of the supports 3 includes the coil spring 9, a spring receiver 8 that contacts the lower end of the coil spring 9, and the bearing member 6 that is placed on the upper end of the coil spring 9 and contacts the coil spring 9. are inserted movably along the axial direction of the support.

The L bearing member 6 is provided with a threaded hole 6b that passes through the side surface in the horizontal direction, and the threaded portion of the small diameter end 10a of each of the supports 10 is screwed into the threaded hole 6b to secure the fixing member. Ru. Therefore, the support rod 10 can freely move up and down along the length i/43a of the support 3 together with the bearing member 6 in the axial direction of the support. Further, the center portion of the lower end surface of the bearing member 6 is provided with a protrusion 6a that is inserted into the inside of the coil spring 9.
The bottom end of the coil spring 9 is received on the lower surface around the protrusion 6a.

The spring receiver 8 is supported so as to be movable along the road downward direction within the support body 3 via an adjustment member (not shown) to be described later at the lower part of the support body 3. A protrusion 8a is provided at the center of the upper surface of the spring receiver 8. The protrusion 8a is inserted into the coil spring 9, and the lower end of the coil spring 9 is received on the upper surface around the protrusion 8a. Therefore, the coil spring 9
is compressed between the bearing member 6 and the spring receiver 8 in the support body 3, and the bearing member 6 is compressed by the biasing force of the coil spring 9.
The support rod IO is supported so as to be movable in a downward direction on the road of the filter plate I.

Further below the spring receiver 8, the adjustment member such as a bolt is provided, although not specifically shown, and the bolt is screwed upward into the handle 1a, so that the spring receiver 8 is connected to the axis of the support body 3. the coil spring 9 by moving it along the direction.
The spreading tension of the filter cloths 5, 5 may be adjusted by adjusting the biasing force of the filter cloths 5, 5.

On the other hand, both small diameter ends 10a of each of the supports IO.

A pair of the levers 7.7 are rotatably fitted into each of the levers 10a. A collar 11 is fitted into the support rod 10 between the pair of levers 7.7, so that the levers 7.7 do not come into contact with each other, and each lever 7 can swing freely.

Further, the swing plate 12 has cylindrical support parts 12a, 12a which are rotatably fitted to the center part of the support rod IO, and a space between the filter cloth hanging rods 2.2 below each of the support parts 12a. It integrally includes plate-shaped swinging parts 12c that protrude from the filter cloth 5 and respectively face the filter cloth hanging rods 2 through the filter cloth 5, and driving protrusions 12b that protrude in three directions of the support part 12a. Configure. Each rocking plate 12 is bent in a 1<'' shape with the supporting portion 12a as a boundary, and the protruding portion 12b marked with -F protrudes so that its tip portion faces diagonally upward. When part +2b is pushed from above by a diaphragm, etc. to be described later, the support part! 2a
The swinging plate 12 rotates around the oscillating member 12c, so that the swinging portion 12c swings. The above drawing board 12. +2 are arranged so as to rotate in opposite directions around the supporting member, and when each swinging plate 12 rotates, each swinging portion 12c connects to each filter cloth hanging rod 2 via each filter cloth 5. The filter cloth hanging rod 2 is made to swing upon contact. A retaining ring 13.13 is fixed to the center of the support rod IO so as to be adjacent to the drawing plates 12, 12 and sandwiching the drawing plate 12.12.
to prevent the support rod from shifting in the axial direction.

The filter cloth hanging rods 2.2 disposed before and after the filter plate 1 are formed such that one of the filter cloth hanging rods 2 is longer in the axial direction than the other filter cloth hanging rod 2. ,...

When the frame 1 is closed, both the levers 7.7 are housed within the width dimension of the filter plate 5 without abutting each other.

On the other hand, above the support rod 10, although not shown in detail, a well-known filter cloth vibrating device is provided as a driving member, and when the filter plate is opened, the vibration plate 14 of the vibrating device vibrates the support rod! At the same time that vibration is applied to the filter cloths 5, 5 by striking O downward, the diaphragm 14 is moved to the protrusion 1 of the oscillating plate 12.
2b so that the swinging portion 12c of the swinging plate 12 swings around the support member.

According to the above configuration, after the filtration process is completed, the filter plate 1°...
, 1 is opened, the support rod 10 is struck downward with the vibration plate I4 of the vibration device, and when the support rod 10 is lowered, for example, as shown by the dotted line in FIG. The coil springs 9.9 are respectively compressed, and at the next instant, the urging force of the coil springs 9, 9 moves the levers 7.7, 7°7, the filter cloth hanging rod 2.2, and the filter cloths 5, 5 together with the support rod IO. rises upward. Next, filter cloth 5.5, support rod 1
0, the weight of the levers 7.7, 7.7, filter cloth hanging rod 2.2, etc. causes a weakening movement in the downward direction of the road, which causes the coil spring 9.9 to contract. Close.

The support rod above! When the diaphragm I4 comes into contact with 0, the projection of the drawing plate 12.12! 2b, +2b with diaphragm 1
4 come into contact with each other, the drawing moving plates 12 and 12 are rotated in opposite directions to the support member mouth, and the filter cloth hanging rod 2 is filtered through the filter cloth 5 by the swinging portion 12c of each swinging board 12. Move it in the direction away from the board ■. When the support rod 10 is lowered to the lower end position, both filter cloths 5.5 are opened to the widest extent by the swing plate 12.12 and separated from the filter plate 1. Thereafter, when the support rod 10 rises, that is, when the support rod 10 is urged upward by the urging force of the coil spring 9, each filter cloth 5 is stretched along each of the front and rear surfaces of the filter plate 1. The levers 7.7 swing toward the filter plate side due to the expansion tension, the weight of the filter cloth 5, and the release of the diaphragm I4 from contact with the protrusion 12b of the swing plate 12. and position the filter cloth 5 along each side of the filter plate l. In this way, the support rod 10 is moved along the road downward direction by the vibration device, and the filter cloth 5 is moved along the up and down direction, and the swinging operation of the swing plate 12 moves the filter cloth 5. 5.5 causes the filter plate 1 to flutter significantly in the downward direction on the road and in the substantially front-back direction, thereby peeling off the filter residue adhering to the filter cloth 5.

According to the above embodiment, the filter cloth hanging rod 2.2 is attached to the filter plate l so as to be movable along the downward direction of the road and also movably in the approximately front and back direction, and the swinging action of the swinging plate 12 allows the filter cloth to be filtered. Cloth 5.5
Since the filter plate 1 is made to flutter largely in the front-rear direction and in the downward direction on the road, even fine filter residue adhering to the filter cloth 585 can be effectively peeled off from the filter cloth 5.

That is, compared to the conventional method in which the filter cloth 5.5 is simply moved along the front and rear surfaces of the filter plate 1 only in the downward direction of the road, the filter cloth 5.
．． 5 also moves substantially in the front-back direction and flutters against each surface of the filter plate 1, so that the efficiency of removing filter residue from the filter cloths 5, 5 can be greatly improved. Further, since the filter cloth hanging rod 2.2 is connected to the filter plate H via the lever 7.7, the support rod 10, and the support body 3 so as to be movable on the road, the filter cloth hanging rod 2.
2 and support rod! 0 with a simple structure, and the structure of the filter cloth hanging device as a whole becomes simple.

It should be noted that the present invention is not limited to the above embodiments;
It can be implemented in various other ways.

For example, instead of the collar 11, a torsion spring is provided, each end of the torsion spring is engaged with each lever 7, so that the levers 7.7 are auxiliary biased away from each other; It may be arranged to help prevent the filter cloth 5 from flapping due to the swing plate 12.

Further, as shown in FIG. 3, the support member IO is attached to the filter plate I.
The drive plate I5 as a drive member is fixed to the handle la of the swing plate 12.1 as shown by the dotted line in the figure.
By contacting the protrusions 12b and +2b of 2, the rocking plates 12 and 12 are respectively rotated in the opposite direction to the support part,
The filter cloth 5.5 may be swung by the oscillating parts 12c, 12C via the filter cloth hanging rod 2.2. In this case, each filter cloth 5 does not move much in the vertical direction, but mainly moves approximately in the front-back direction to peel off the filter residue from the filter cloth 5.

Further, as the filter cloth swinging member, the swinging plate I2 in which the protruding portion 12b and the swinging portion 12c are each formed into a plate shape is used, but if the filter cloth swinging member has a similar function, the protruding portion and the swinging portion Each portion may be formed into a rod shape. Further, the arrangement of the swing plates 12 is not limited to the central part above the filter plate l, but may be at the ends, and the number thereof is not limited to two, but may be any number.

Also, the above filter plate! If the width dimension is large, the axial length dimension of the pair of filter cloth hanging rods 2.2 is the same dimension,
When the filter plate is closed, both the levers 7.7 and the filter cloth hanging rods 2, 2 may be housed within the width of the filter plate (2).

In addition, as a device for adjusting the unfolding tension of each filter cloth 5 and the degree of flapping of the filter cloth 5, the biasing force of the coil spring 9 can be adjusted by adjusting the position of the spring receiver 8 as in the above embodiment. However, depending on the tension of the coil spring 9, the spring spring holder 8 can be replaced with one having a larger axial length to adjust the tension and vibration amplitude of the filter cloth 5.5. You can. In addition, by replacing the levers 7 and 7 with ones having different axial lengths, and by replacing the dirty filter cloth hangers 2 and 2 with ones with different layers, the filter cloth It is also possible to adjust the degree of flapping in 5 and 5.

Further, as the support 3, a plurality of plate-like members are fixed to the notebook 1a so as to protrude upward, and the end portion 10a of the support 10 is moved between the plate-like members in the vertical direction. It may be constructed by forming a gap into which it can be freely inserted.

Further, the cross-sectional shape of the support body 3 is not limited to a rectangular frame, but may be annular.

Moreover, although the rocking plate I2 was in contact with the filter cloth hanging member 2 via the filter cloth 5, the rocking plate 12 may be brought into direct contact with the filter cloth hanging member 2.

[Brief explanation of the drawing]

FIG. 1 is a front view of a main part showing a filter cloth hanging device of a filter press according to an embodiment of the present invention, FIG. 2 is a side view of a main part of a filter plate equipped with a filter cloth hanging device according to FIG. 1, FIG. 3 is a side view of a main part of a filter cloth hanging device according to another embodiment. 1... Filter plate, 1a... Handle, 2... Filter cloth hanging member,
3... Support body, 3a... Long groove, 4... Guide rail, 5... Filter cloth, 6... Bearing member, 6a... Protrusion part,
6b...Through hole, 7...Lever, 8-Spring receiver, 8
a...Protrusion, 9...Coil spring, IO...Support rod, 10a...End, 1! ...Color, 12...
Rocking plate, 12a...Support part, 12b...Protrusion part, 1
2c... Swinging part, I3... Retaining ring,! 4. Vibration plate. Patent applicant: Kurita Kikai Seisakusho Co., Ltd. Patent attorney Aoyama Ao Two idiots Figure 2 Figure 3

Claims (2)

[Claims] (1) A filter press that supports a filter cloth hanging member (2) that suspends and supports a filter cloth (5) disposed between filter plates (1, 1) adjacent in the front-back direction so as to be movable approximately in the front-back direction. The filter cloth hanging device is provided with levers (7) at both ends of the filter cloth hanging member (2), and a support member (1) that swingably supports the lever (7).
0) is provided on the filter plate (1) so as to be disposed above the filter plate (1), and also contacts the filter cloth hanging member (2) to suspend the filter cloth hanging member (2) from the filter plate (1). A filter cloth swinging member (1) having a swinging part (12c) for moving in a direction away from the plate (1) and a driving protrusion (12b) at the upper end.
2) rotatably relative to the support member (10);
The filter cloth swinging member (12) is brought into contact with the driving protrusion (12b) of the filter cloth swinging member (12) from above to move the swinging member (12) to the support member (
10) A filter cloth hanging device for a filter press, characterized in that drive members (14, 15) for rotating with respect to the filter plate are provided so as to be positioned above the filter plate at least when the filter plate frame is opened. (2) fixed to both sides of each filter plate (1), and
a support body (3) having a gap (3a) extending along the axial direction in the upper part thereof and into which each end of the support member (10) is inserted movably along the axial direction; a biasing member (9) built into the support body (3), and a biasing member (9) inserted into each of the supports (3) so as to be movable along the axial direction of the support body (3) above the biasing member (9); The gap between the support body (3) (
Each end of the support member (10) inserted from 3a)
10a) A filter cloth hanging device for a filter press according to claim 1, further comprising a bearing member (6) for supporting the filter press (10a).