JPH0356765B2 - - Google Patents

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.

BACKGROUND ART Conventionally, various structures have been considered for this type of filter press filter cloth hanging device. For example, the present applicant previously filed an application for a filter cloth hanging device having the following configuration. That is, in the above-mentioned filter cloth hanging device, hollow supports are fixed to the handles on both sides of each filter plate, and each end of the filter cloth hanging member extends in the axial direction on the upper part of the support. A biasing member is built into each of the supports, and a bearing member is moved along the axial direction of the supports onto the biasing member within each of the supports. The shaft bearing member is inserted freely, and the bearing member is located at the bottom of the support body.
It is generally configured to support each end of the filter cloth hanging member inserted between them.

In the above configuration, after the filter plate is opened, the filter cloth hanging member or the like is struck with a vibration 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, and the filter cloth is returned to its original state where it is stretched along each of the front and rear surfaces of the filter plate. By repeating such operations, the filter cloth is moved substantially in the vertical direction and the filter residue is peeled off from the filter cloth.

Problems to be Solved by the Invention However, in the structure described above, each filter cloth hardly moves in the approximately front-to-back direction and merely loosens, so the amount of movement of the filter cloth in the approximately front-to-back direction of the filter plate is small; Therefore, even if the filter cloth hanging member is moved up and down by the vibrating device, the filter cloth only moves approximately in the vertical direction, and the filter cloth does not flap so much in the approximately front and back direction of the filter plate, and the fine filter residue is removed from the filter cloth. Problems such as difficulty in peeling may occur.

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 above object, 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 the above-mentioned The supporting member is rotatably provided with a swinging member, and the swinging member is driven by the drive member to swing the filter cloth hanging member in a direction that forcibly moves away from the filter plate, thereby lifting the filter cloth. It was designed so that the filter residue could be peeled off from the filter cloth by making a large flap against the filter plate. 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 filter plates adjacent 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 configuration, a support having a space that is fixed to both sides of each of the filter plates, extends along the axial direction at the upper part, and into which each end of the support member is inserted movably along the axial direction. a biasing member built into each of the supports; a biasing member inserted into each of the supports so as to be movable along the axial direction of the support; It may also be configured to include a bearing member that supports each end of the support member inserted between them.

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. 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 substantially in 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 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. As a result, the support member and the like swing in the opposite direction to the above, and the filter cloth hanging member also swings 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 configuration, the driving member causes the swinging part of the swinging member to swing around the support member, 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 the filter cloth is allowed to hang, even fine filter residue can be effectively peeled off from the filter cloth.
That is, since the filter cloth flutters against the filter plate more than when the filter cloth is simply moved approximately vertically 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 so as to be movable approximately vertically relative to the filter plate, 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 supporting member. 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 plate in both the vertical direction and the front-back direction, and even fine filter residue attached to the filter cloth can be peeled off from the filter cloth. I can do it.

Examples Examples according to the present invention will be described in detail below with reference to 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, in the filter press, a large number of filter plates 1, . , 5 as filter cloth hanging members are provided, and the movable plate is moved to suspend and support the large number of filter plates 1, 5, respectively.
..., 1 are closed, and the stock solution is supplied between the pair of filter cloths 5, 5 between the respective filter plates 1, 1 to perform filtration. On the other hand, the movable plate is moved in the opposite direction to open the filter plates 1, . . . , 1, and the filter residue held between the pair of filter cloths 5, 5 between the filter plates 1, 1 is removed. Configure it as follows. Each of the filter plates 1 has handles 1a, 1a protruding in the lateral direction on both sides thereof, and each of the handles 1a is hung and supported by each guide rail 4 installed between the front and rear stands so as to be slidable back and forth. , to guide the movement of each filter plate 1. A bag portion 5a is formed at the lower end of each filter cloth 5 by sewing, and the bag portion 5a is attached to a support frame 1 supported below the filter plate 1.
The lower end of the filter cloth is fixed by inserting it into the support rod 1c fixed between the ends of the filter cloth.

As shown in FIGS. 1 and 2, the filter cloth hanging device applied to this filter press has the filter cloth hanging rod 2.
A lever 7 is provided at each end of the lever 7, and a support rod 10 is provided as a support member for swingably supporting the lever 7, and the support rod 10 is provided with swing plates 12, 12 as filter cloth swing members. Be prepared to swing. Furthermore, the filter cloth hanging device has supports 3, 3 fixed to predetermined locations of both handles 1a, 1a of each filter plate 1, and a coil spring 9 as a biasing member in each support 3. , a bearing member 6 biased upward by the coil spring 9 is built into the support body 3 so as to be movable along the axial direction of the support body 3, and the support rod 10 is fixed to the support member 6. and roughly configure it.

Each of the supports 3 is a hollow member having a rectangular cross section, and is located on the upper side surface of each of the filter plates 1 and the handle 1.
It is fixed to the upper surface of a so as to protrude upward.
The side surface of the support 3 on the filter cloth side is provided with a long groove 3a extending in the axial direction and having an open upper end.

Each of the supports 3 supports the coil spring 9, a spring receiver 8 that contacts the lower end of the coil spring 9, and the shaft bearing member 6 that is placed on the upper end of the coil spring 9 and contacts the coil spring 9. They are inserted movably along the body axis.

The bearing member 6 has a threaded hole 6b extending laterally through its side surface, and the threaded portion of the small diameter end 10a of each of the support rods 10 is screwed into the threaded hole 6b and fixed therein. Therefore, the support rod 10 can freely move up and down along the long groove 3a of the support 3 together with the bearing member 6 in the axial direction of the support. In addition, the coil spring 9 is mounted at the center of the lower end surface of the vertical bearing member 6.
The upper 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 substantially in the vertical 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
The support rod 10 is compressed between the bearing member 6 and the spring receiver 8 in the support body 3, and the support rod 10 is moved substantially in the vertical direction of the filter plate 1 via the bearing member 6 by the biasing force of the coil spring 9. support possible.

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, and the spring receiver 8 is moved in the axial direction of the support body 3. The tension of the filter cloths 5, 5 may be adjusted by adjusting the biasing force of the coil spring 9 by moving the filter cloths along the filter cloths 5, 5.

On the other hand, both small-diameter ends 10 of each of the support rods 10 are
A pair of levers 7, 7 are rotatably fitted into a, 10a, respectively. This pair of levers 7, 7
A collar 11 is fitted into the support rod 10 between the levers 7 and 7, so that the levers 7, 7 do not come into contact with each other, and each lever 7 can swing freely.

The swing plate 12 also includes a cylindrical support portion 12a rotatably fitted to the center portion of the support rod 10;
12a, plate-shaped swinging parts 12c that protrude below each support part 12a between the filter cloth hanging rods 2, 2 and respectively face the filter cloth hanging rods 2 through the filter cloth 5;
The driving protrusion 12b that protrudes above the support part 12a is integrally provided. Each rocking plate 1
2 is bent in a dogleg shape with the supporting portion 12a as a boundary, and the protruding portion 12b protrudes with its tip portion facing diagonally upward, and the protruding portion 12b prevents vibrations as described later. When pushed from above by a plate or the like, the swing plate 12 rotates around the support section 12a, causing the swing section 12c to swing. The two rocking plates 12, 12 are arranged so as to rotate in opposite directions around the support member, and when each rocking plate 12 rotates, each rocking portion 12c moves each filter cloth through 5. to make contact with each filter cloth hanging rod 2 and to swing the filter cloth hanging rod 2. At the center of the support rod 10, adjacent to both the swing plates 12, 12 and both swing plates 1
Holding rings 13, 13 are fixed so as to sandwich 2, 12 between them to prevent the swing plates 12, 12 from shifting in the axial direction of the support rod.

Note that 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 of the filter plate 5 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, a well-known filter cloth vibrating device is provided as a driving member, although not shown in detail, so that when the filter plate frame is opened, the vibration plate 14 of the vibrating device moves the support rod 10. is struck downward to impart vibration to the filter cloths 5, 5, and at the same time, the diaphragm 14 comes into contact with the protruding portion 12b of the oscillating plate 12, causing the oscillating portion 12c of the oscillating plate 12 to move around the support member. Let it oscillate.

According to the above configuration, after the filtration process is completed and the filter plates 1, . When the support rod 10 is lowered as shown in FIG.
9 respectively contract, and at the next instant, the levers 7, 7, 7, 7, the filter cloth hanging rods 2, 2, and the filter cloths 5, 5 are raised upward together with the support rod 10 by the urging force of the coil springs 9, 9. let Next, the filter cloths 5, 5, the support rod 10, the levers 7, 7, 7, 7 and the filter cloth hanging rod 2,
The support rod 1 performs a damping motion approximately in the vertical direction, which causes the coil springs 9 to contract due to their own weight.
It is produced at magnitude 0. When the diaphragm 14 comes into contact with the support rod 10, the diaphragm 14 comes into contact with the protrusions 12b, 12b of both the oscillation plates 12, 12, and the oscillation plates 12, 12 are moved in opposite directions by the support member. The filter cloth hanging rod 2 is moved in the direction away from the filter plate 1 via the filter cloth 5 by the swinging portion 12c of each swing plate 12. When the support rod 10 is lowered to the lower end position, both the filter cloths 5, 5 are opened to the maximum extent by the swing plates 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. Due to the expansion tension, the weight of the filter cloth 5, and the release of the diaphragm 14 from contacting the protrusion 12b of the swing plate 12, the levers 7, 7 swing in the direction toward the filter plate side. Then, the filter cloth 5 is positioned along each side of the filter plate 1. In this way, the support rod 10 is moved substantially in the vertical direction by the vibration device, and the filter cloth 5 is moved substantially in the vertical direction, and the swinging operation of the swing plate 12 causes the filter cloth 5 , 5 are made to flutter largely in the vertical and longitudinal directions against the filter plate 1, thereby peeling off the filter residue adhering to the filter cloth 5.

According to the above embodiment, the filter cloth hanging rods 2, 2 are attached to the filter plate 1 so as to be movable substantially in the vertical direction and in the longitudinal direction. Since the cloths 5, 5 are made to flutter largely in the front-rear direction and the vertical direction with respect to the filter plate 1, fine filter residue adhering to the filter cloths 5, 5 can be effectively peeled off from the filter cloth 5. can be done. That is, compared to the conventional filter in which the filter cloths 5, 5 are simply moved approximately only in the vertical direction along each front and rear surface of the filter plate 1, the filter cloths 5, 5 are also moved approximately in the front and rear directions, and the filter plate 1 is moved approximately vertically. Since it flaps against each side, the filter cloth 5, 5
It is possible to greatly improve the peeling efficiency of filter residue. Also, the filter cloth hanging rods 2, 2 are attached to the filter plate 1.
are connected via the levers 7, 7, the support rod 10, and the support body 3 so as to be substantially vertically movable, so that the connection between the filter cloth hanging rods 2, 2 and the support rod 10 can be achieved with a simple structure. This makes the structure of the filter cloth hanging device simple as a whole.

Note that the present invention is not limited to the above-mentioned embodiments, and can be implemented in various other embodiments.

For example, a torsion spring may be provided in place of the collar 11, and each end of the torsion spring is locked to each lever 7 to supplementally urge the levers 7, 7 away from each other, The above rocking plate 12
It may also be arranged to help prevent the filter cloth 5 from flapping.

Further, as shown in FIG. 3, the support member 10
is fixed to the handle 1a of the filter plate 1 so that it cannot move up and down, and the drive plate 15 as a drive member moves the protruding parts 12b, 12b of the swing plates 12, 12 as shown by the dotted line in the figure.
, the swinging plates 12 and 12 are respectively rotated in opposite directions around the supporting member, and the swinging portion 12 is rotated in opposite directions.
The filter cloths 5, 5 may be swung through the filter cloth hanging rods 2, 2 by the filter cloths 5, 12c. In this case, each filter cloth 5 does not move much in the vertical direction,
The filter sludge is peeled off from the filter cloth 5 by mainly moving approximately in the front-back direction.

Further, as the filter cloth swinging member, the protrusion 12
Although the rocking plate 12 in which the b and rocking portions 12c are each formed into a plate shape is used, if it had the same function, the protruding portion and the rocking portion 12c may each be formed into a rod shape. It's okay. Furthermore, the arrangement of the swing plates 12 is not limited to the upper central part of the filter plate 1, but may be at the ends thereof, and the number thereof is not limited to two, but may be any number.

In addition, when the width of the filter plate 1 is large,
The above-mentioned pair of filter cloth hanging rods 2, 2 have the same axial length dimension, and both levers 7, 7 and filter cloth hanging rods 2, 2 are housed within the width of the filter plate 1 when the filter plate frame is closed. You can do it like this.

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 spring force of the coil spring 9, the spring receiver 8 may be replaced with one having a larger axial length dimension to adjust the tension of the filter cloths 5, 5 and hence the vibration width thereof. It's okay. In addition, by replacing the levers 7, 7 with ones having different axial length dimensions, or replacing each of the filter cloth hanging rods 2, 2 with ones having different weights, the filter cloths 5, 7 can be The degree of flapping may be adjusted.

Further, as the support body 3, a plurality of plate-like members are fixed to the handle 1a so as to project upward, and the end portion 10a of the support rod 10 is inserted between the plate-like members so as to be movable in the vertical direction. It may also be constructed by forming a space between the two sides.

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

Further, the swing plate 12 was in contact with the filter cloth hanging member 2 via the filter cloth 5, but the swing plate 12 was in contact with the filter cloth hanging member 2 through the filter cloth 5.
may be in direct contact with.

[Brief explanation of drawings]

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 essential parts of a filter cloth hanging device according to another embodiment. DESCRIPTION OF SYMBOLS 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, 6b...Through hole, 7...Lever, 8...Spring receiver, 8a...Protrusion, 9...Coil spring, 1
0... Support rod, 10a... End, 11... Collar, 12... Rocking plate, 12a... Support part, 12b
...Protruding portion, 12c... Swinging portion, 13... Retaining ring, 14... Vibration plate.

Claims (1)

[Scope of Claims] 1. A filter of a filter press that supports a filter cloth hanging member 2 that suspends and supports a filter cloth 5 disposed between filter plates 1 and 1 adjacent in the front-rear direction so as to be movable in the approximately front-rear direction. A 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 levers 7.
0 on the filter plate 1 so as to be disposed above the filter plate 1, and a rocker that contacts the filter cloth hanging member 2 and moves the filter cloth hanging member 2 in a direction away from the filter plate 1. A filter cloth swinging member 12 having a moving part 12c and a driving protrusion 12b at the upper end.
is rotatable with respect to the support member 10, and contacts 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 driving members 14 and 15 for rotating relative to each other are provided so as to be positioned above the filter plate at least when the filter plate is opened. 2 fixed to both sides of each filter plate 1, and
A gap 3 extending along the axial direction in the upper part and into which each end of the support member 10 is inserted so as to be movable along the axial direction.
a, a biasing member 9 built into each of the supports 3, and a biasing member 9 that is movable along the axial direction of the support 3 on top of the biasing member 9 within each of the supports 3. and the space 3 of the support 3.
Each end 10 of the support member 10 inserted from a
A filter cloth hanging device for a filter press according to claim 1, further comprising a shaft bearing member 6 for supporting a.