JPH0581B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a filter cloth vibrating device for a filter press that applies vibration to a filter cloth to remove filter residue adhering to the filter cloth.

BACKGROUND ART Hitherto, various structures of vibrating devices for filter presses of this type have been known. for example,
A large number of filter plates are arranged between the front and rear stands, and filter cloth hanging rods are supported by struts on both sides of each filter plate via springs, and when the filter plate is opened, the filter cloth is suspended by a vibrating device above the filter plate. Some filters are designed to vibrate the filter cloth primarily in the vertical direction by hitting a hanging rod, thereby peeling off filter cake adhering to the filter cloth from the filter cloth.

Problems to be Solved by the Invention However, with the structure described above, the filter cloth mainly moves and flutters in the vertical direction, and the vibration effect of the filter cloth quickly decreases due to damping of the spring. Therefore, the object of the present invention is to
In order to solve the above problem, it is possible to make the filter cloth flutter not only in the vertical direction of the filter plate but also in the lateral direction, and to maintain a stable vibration effect on the filter cloth for a desired period of time. It is an object of the present invention to provide a filter cloth vibrating device for a filter press that can remove filter residue from a filter cloth more effectively.

Means for Solving the Problems In order to achieve the above object, the present invention rotatably supports filter cloth hanging members for suspending and supporting a filter cloth with respect to columns of a filter plate by rotary arms. The member was configured to rotate relative to the filter plate to remove filter residue from the filter cloth. That is, a filter cloth is suspended and supported between adjacent filter plates by a filter cloth hanging member, and after filtering the stock solution using the filter cloth, the filter plates are opened to each other and vibration is applied to the filter cloth. In the filter press for removing attached filter residue, one end is rotatably supported by the pillars on both sides of each filter plate, and the other end is provided with a rotating arm that supports one end of the filter cloth hanging member. It was configured as follows.

In the above configuration, each of the rotating arms includes a first arm that has one end rotatably supported by the pillars on both sides of the filter plate, and a first arm that has one end rotatably supported by the other end of the first arm and the other end. The filter cloth hanging member may further include a second arm that supports one end of the filter cloth hanging member.

Moreover, in the said structure, it can also be comprised so that the drive device which rotationally drives the said rotation arm may be provided.

Further, in the above configuration, the drive device includes:
It can also be configured to be included in a filter plate feeding device that moves the filter plate.

Further, in the above configuration, a rotation prevention member that prevents rotation of at least one of the rotary arms with respect to the filter plate is attached to the filter plate so as to be detachable from one end of the at least one rotary arm. You can also.

Effects and Effects of the Invention In the above configuration, when the filter plate is opened, the filter cloth hanging member is rotated with respect to the filter plate via the pair of rotating arms, and the filter cloth is moved in the vertical and lateral directions of the filter plate. Since the cloth can be fluttered, the filter residue can be effectively removed from the filter cloth. Furthermore, in the case where each of the rotating arms described above is composed of a first arm and a second arm, and both arms are pivotally connected, the rotation of the first arm causes the portion that is pivotally connected to the second arm to move downward. At this time, the second arm is in an open state without overlapping with the first arm, so the filter cloth hanging rod and therefore the filter cloth move significantly to the underside of the filter plate, causing the filter cloth to flap greatly. The filter residue can be removed even more effectively. Therefore, both fine particle filter residue and sticky filter residue can be effectively removed from the filter cloth. Further, the vibration device does not transmit vibration to the filter cloth by hitting the filter cloth hanging rod, but transmits the vibration by rotational driving of a rotary arm, so that the filter cloth hanging rod is not damaged. Further, when the driving device is provided in the filter plate feeding device, the filter cloth can be driven in a fluttering manner after a space for swinging the filter cloth is reliably formed between adjacent filter plates. Therefore, when a space for flapping the filter cloth is sufficiently opened between adjacent filter plates while feeding one filter plate, the driving device is driven to feed the filter plate while flapping the filter cloth. This makes it possible to increase the operating efficiency of the filter press.

Examples Examples according to the present invention will be described in detail below with reference to FIGS. 1 to 12.

As shown in FIG. 1, the filter cloth vibrating device for a filter press according to this embodiment has a rectangular plate-shaped gripping part 1a fixed to the upper surface of a filter plate 1, and Posts 1 erected on both sides of
The filter cloth hanging rod 3 is rotatably attached to b, 1b via rotary arms 24, 24, and the rotary arm 2
4 and 24, the filter cloth 2 suspended and supported by the filter cloth hanging rod 3 is made to flutter, thereby removing filter residue from the filter cloth 2. A filter press to which this filter cloth vibrating device is applied may, for example, have a large number of filter plates 1, . The filter cloths 2, 2 are supported by the filter cloth hanging rods 3, 3, respectively, and both the filter cloth hanging rods 3, 3 are supported by one filter plate 1, by driving a movable plate (not shown). There is one in which the filter plates 1, . . . , 1 are opened and closed.

Each of the filter cloth hanging rods 3 is made of a square plate, and is inserted into a cylindrical portion 2a sewn to the upper end of each filter cloth 2.
Further, the lower end of each of the filter cloths 2 is fixed below the filter plate 1 by a filter cloth support rod 25.

Each of the rotating arms 24 includes a first arm 6 whose one end is rotatably supported by a rotating shaft 7 on each support column 1b of the filter plate 1, and a first arm 6 whose other end is rotatably supported by a pin 5. The second arm 4 is supported by a second arm 4 which is supported by a second arm 4 and which fits and supports the filter cloth hanging rods 3, 3 into a through hole 4a at the other end. One of the rotating shafts 7 of one of the rotating arms 24 has a notch 7 at its tip.
form a.

The filter cloths 2, 2 are inserted into the notch 7a with the pin 5, which is the pivoting portion between the first arm 6 and the second arm 4 in the rotary arm 24, positioned at the uppermost position. A stopper 8 that restricts the rotational position of the first arm 6 is removably locked so that the first arm 6 is suspended and supported. That is, the stopper 8 has a cylindrical member 8c fixed to the outer surface of the support column 1b, and a stopper pin 8a, which is constantly urged upward by a spring 8d, is inserted into the cylindrical member 8c so as to be movable in the vertical direction. This stop pin 8
A narrow locking part 8b is formed at the upper end of a, and this locking part 8b enters into the notch 7a by the force of the pin 8d, and the rotation shaft 7 is attached to the uppermost position of the pin 5. The first arm 6 is then locked in a non-rotatable manner.

On the other hand, as shown in FIGS. 2 to 4, the drive device 9 that drives the rotary arm 24 is attached to one side of the frame 19 of the filter plate feeding device 10 that feeds the filter plate 1 in the front and back direction using a known feeding claw. It is fixed and moves integrally with the filter plate feeding device 10. The drive device 9
is structured as follows. An elevating body 13 is fixed to the lower end of a piston rod 18a of a vertical drive cylinder 18 fixed to the frame 19. This elevating body 13 has a pair of vertical rotation shafts 1.
4 and 16 are rotatably supported on the upper and lower sides of the elevating body 13, respectively, and pulleys 15 and 17 are fixed to the center of each rotating shaft 14 and 16, respectively. Both pulleys 1
A belt 12 is stretched between 5 and 17. A narrow engaging portion 16a is formed at the end of the lower rotating shaft 16 on the filter plate side, so that it can be engaged with the notch 7a of the one rotating shaft 7 of the rotating arm 24.
A rotating arm drive cylinder 11 is fixed to the side surface of the elevating body 13, and the elongated hole 1 of the elevating body 13 is attached to the tip of the piston rod 11a of the driving cylinder 11.
A rod 11b extending to the belt side via the belt 3a is fixed, and the tip of the rod 11b is fixed to the belt 12. Therefore, the drive cylinder 1
1 to move its piston rod 11b up and down, the belt 12 is forcibly moved up and down via the rod 11c, which causes the pair of pulleys 15 and 17 to rotate, and the lower side The rotating shaft 16 rotates in forward and reverse directions. On the other hand, the vertical drive cylinder 18 lowers the elevating body 13 by lowering its piston rod 18a,
The engaging portion 16a of the lower rotating shaft 16 is engaged with the notch 7a of the rotating shaft 7 of the rotating arm 24.
When the rotating shaft 16 and the rotating shaft 7 are engaged and connected, the rotational force of the rotating shaft 16 can be transmitted to the first arm 6, and the filter cloth hanging rod 3 can be rotationally driven. . Here, in FIG. 2, reference numeral 23 denotes a lock release rod of the rotating arm 24, and the release rod 23
is lowered with the lowering of the elevating body 13, and first the notch 7a of the rotating shaft 7 of the rotating arm 24 is lowered.
The locking portion 8b of the stopper pin 8a of the stopper 8 is pushed out from inside the notch 7a downward against the biasing force of the spring 8d, and then the engaging portion 16a is smoothly inserted into the notch. It is inserted into the portion 7a.

Note that the filter plate feeding device 10 has rollers 21, .
2, and the rollers 21, . . . , 12 are guided in the front-back direction by moving on rails 22, 22 installed in the front-back direction above the filter plates 1, . Further, when the lower end of each of the filter cloths 2 is fixed to the filter plate 1, the first
As shown in the figure, the filter cloth 2 is hung on the filter cloth hanging rod 3 with the pin 5 located at the upper end position. on the other hand,
When the lower end of the filter cloth 2 is not fixed to the filter plate 1, the filter cloth 2 can be hung on the filter cloth hanging rod 3 at any position regardless of the rotational positions of the rotating arms 24, 24.

According to the above configuration, the filter plates 1, . Supply the stock solution indoors and perform filtration or press filtration. Thereafter, when opening the filter plates 1, .
After forming a predetermined interval between adjacent filter plates 1, 1, ie, an interval sufficient to allow the filter cloth 2 to flap sufficiently, the driving device 9 is driven. That is, the vertical drive cylinder 18 is driven to lower the elevating body 13, and the locking release rod 23 and the locking portion 16a of the lower rotating shaft 16 are lowered. Then, from within the notch 7a of the rotating shaft 7 of the rotating arm 24, the locking portion 8b of the stopper pin 8a of the stopper 8 is pushed downward by the locking release rod 23, and the engaging portion of the lower rotating shaft 16 is pushed out. 16a and engage.
Thereafter, the rotating arm drive cylinder 11 is driven to rotate the vertical rotating shafts 14 and 16 via the belt 12 and pulleys 15 and 17, and the rotational force is transmitted to the rotating shaft 7 of the rotating arm 24. Then, one of the first arms 6 rotates around the center of rotation of the rotation shaft 7, and the second arm 6, which is pivoted by the pin 5,
Attempt to rotate arm 4 around the same center. As a result, the pair of filter cloth hanging rods 3, 3 supported by the second arms 4, 4 try to rotate around the center together with the pair of rotating arms 24, 24. This movement is shown in Figures 5-11. That is,
A fifth arm in which each first arm 6 overlaps each second arm 4
When the first arms 6, 6 begin to rotate clockwise from the filter cloth extended position shown in the figure, the second arms 4, 4 move to the pins 5, 5, as shown in FIGS. 6, 7. The filter cloths 2, 2 begin to rotate with respect to the first arms 6, 6 via the filter plate 1, and the filter cloths 2, 2 are caused to swing and flap in the lateral direction of the filter plate 1. Then, when the pins 5, 5 are about to rotate downward from the state shown in FIG.
The second arms 4, 4, which had been bent in a dogleg shape with respect to the first arms 6, 6, suddenly moved to the first arms 6, 6.
It moves so as to extend along the axial direction of the arms 6, 6. That is, in the drawings, the filter cloth hanging rods 3, 3 were located within the rotation area of the pins 5, 5 of the first arms 6, 6 from Figs. 5 to 7, but from Figs. When facing the figure, the second arms 4, 4 are in an open state without overlapping with respect to the first arms 6, 6, and come out from the rotation area of the pins 5, 5. As a result, the filter cloths 2, 2 move significantly downward and flutter greatly as if being swung down. And after that,
As shown in FIGS. 9 to 11, as the first arms 6, 6 rotate, the second arms 4, 4 support the filter cloth hanging rods 3, 3, so that the filter cloth hanging rods 3, 3 are supported by the second arms 4, 4. The hanging rod support portion rotates due to the weight of the filter cloth hanging rod 3 to be located below the pins 5, 5, that is, it reenters the rotation area of the pins 5, 5, and this part of the second arm 4, 4 As a result of this movement, the filter cloths 2, 2 flutter. By repeating this movement a desired number of times, the filter cloths 2, 2 flutter, or in other words, are bent in a large wave manner, and the filter residue adhering to the filter cloths 2, 2 is shaken off from the filter cloths 2, 2. When the filter residue removal work is completed, the vertical drive cylinder 18 of the drive device 9 is driven to raise the elevating body 13, and the locking part 16a of the rotary shaft 16 is extracted from the notch 7a, and then the release bar 23 is removed, and the stopper is removed. The locking portion 8b of the stopper pin 8a of No. 8 is connected to the rotating arm 24 again.
is locked in the notch 7a of the rotating shaft 7, and the rotating arm 24 is locked in the filter cloth extended position shown in FIG. Note that FIG. 12 shows the state in which the filter cloth 2 is fluttering due to the rotating arms 24, 24. On the other hand, FIG. 13 shows the fluttering state of the filter cloth when the filter plate and the filter cloth hanging rod are connected by only one rotary arm, unlike the rotary arm described above. Than this,
It is clear that the rotating arm 24 having the first arm 6 and the second arm 4 allows the filter cloth 2 to flutter downward more greatly. After the filter residue removal work from the filter cloths 2, 2 is completed, the filter plate feed device 10 again opens the frame of the next filter plate 1 and removes the filter residue from the filter cloths 2, 2 of the filter plate 1. conduct.

According to the above embodiment, the filter cloth hanging rods 3, 3 are moved by the first arm 6,
The filter cloths 2, 2 move in a manner of being swung around the center of rotation of the filter plate 1, and the filter cloths 2, 2 swing horizontally and vertically with respect to the filter plate 1, so the filter cloths 2, 2 move in both directions and flap greatly. , filter residue can be more effectively removed from the filter cloths 2,2. In particular, each rotating arm 24 is connected to the first arm 6 and the second arm 4.
Since both arms 6 and 4 are pivotally connected by the pin 5, when the pin 5 at one end of the first arm 6 moves downward due to rotation of the first arm 6, the second arm 4 connects with the first arm 6. Since the filter cloth hanging rods 3, 3 and the filter cloths 2, 2 are in an open state without overlapping with each other,
is moved largely to the lower side of the filter plate 1, and the filter cloths 2, 2 can flap greatly, making it possible to remove filter residue more effectively. Therefore,
Even fine particle filter residue and sticky filter residue can be effectively removed from the filter cloths 2, 2. Further, since the driving device 9 is provided in the filter plate feeding device 10, the filter cloths 2, 2 can be moved after the space for swinging the filter cloths 2, 2 is reliably formed between the adjacent filter plates 1, 1. It can be driven in a flapping manner. Therefore, when a space for filter cloth flapping is sufficiently opened between adjacent filter plates 1, 1 while feeding one filter plate 1, the driving device 9 is driven to cause the filter cloths 2, 2 to flap. The filter plate 1 can be fed while it is slowing down, and as a result,
The operating efficiency of the filter press can be increased. Further, the vibration device does not transmit vibration to the filter cloth 2 by hitting the filter cloth hanging rod 3, but transmits the vibration by rotating the rotary arms 24, 24. will not be damaged. In addition, since the vibration device described above rotates the rotary arm 24 using the drive cylinder 11, the structure of the device is simpler than a device that uses the rotational force of a motor to drive the rotary arm 24 via a deceleration mechanism. It is simple and lightweight.

Note that the present invention is not limited to the above-mentioned embodiments, and can be implemented in various other embodiments. For example, as the drive device 9, a known drive means such as a motor may be used, or a handle may be engaged in the notch 7a of the rotating shaft 7 and rotated manually. Further, the motor may be arranged coaxially with the rotating shaft 7 so that the rotational force can be easily adjusted. In addition, the drive device 9
is not fixed to the filter plate feeding device 10,
It may be made to move back and forth independently of the device 10, or it may be attached to each filter plate 1. Further, the lower end of each of the filter cloths 2 may not be fixed to the filter plate 1 but may hang down as a free end. Also,
The belt 12 may be a chain or the like. Also,
A narrow engaging portion is formed at the tip of the rotating shaft 7 of the rotating arm 24, and a notch is formed at the tip of the lower rotating shaft 16 of the drive device 9 and the tip of the stopper pin 8a, respectively. A similar connection or disconnection operation may be performed. Further, the filter cloths 2, 2 may be supported by each filter plate 1 by one filter cloth hanging rod 3.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of essential parts of a filter cloth vibrating device for a filter press according to an embodiment of the present invention, and FIGS. 2 and 3 show the drive device in a state where the drive device and the rotary arm are not connected, respectively. A front view and a side view of the vicinity, FIG. 4 is a front view of the main part in a state where the driving device and the rotating arm are connected, and FIGS. 5 to 11 are a state of movement of the filter cloth as the rotating arm is driven. FIGS. 12 and 13 are explanatory diagrams showing the fluttering state of the filter cloth, respectively. 1... Filter plate, 1a... Gripping part, 1b... Support column,
2... Filter cloth, 3... Filter cloth hanging rod, 4... Second arm, 5... Pin, 6... First arm, 7, 16,
14... Rotating shaft, 7a... One end, 8... Stopper, 9... Drive device, 10... Filter plate feeding device, 1
1...Rotating arm drive cylinder, 12...Belt, 13...Elevating body, 15, 17...Pulley,
18... Vertical drive cylinder, 19... Frame,
23...Release rod, 24...Rotating arm, 25...
Filter cloth hanging rod.

Claims (1)

[Scope of Claims] 1. A filter cloth 2 is suspended and supported between adjacent filter plates 1, 1 by a filter cloth hanging member 3, and after filtering the stock solution through the filter cloth 2, the filter plates 1, 1 are hung together. Open above filter cloth 2
In a filter press that removes filter residue adhering to the filter cloth 2 by applying vibration to the filter cloth 2, one end is rotatably supported by struts 1b on both sides of each of the filter plates 1, and the filter cloth is suspended from the other end. A filter cloth vibrating device for a filter press, characterized in that each rotary arm 24 supports one end of a member 3. 2 Each of the rotating arms 24 includes a first arm 6 whose one end is rotatably supported by the pillars on both sides of the filter plate 1, and a first arm 6 whose one end is rotatably supported by the other end of the first arm 6 and the other end. 2. A filter cloth vibrating device for a filter press according to claim 1, further comprising a second arm 4 supporting one end of said filter cloth hanging member 3. 3. The filter cloth vibrating device for a filter press according to claim 1, further comprising a drive device 9 for rotationally driving the rotary arm 24. 4. The filter cloth vibrating device for a filter press according to claim 1, wherein the drive device 9 is included in a filter plate feeding device 10 for moving the filter plate. 5 Rotation prevention member 8 that prevents rotation of at least one rotation arm 24 with respect to the filter plate 1
A filter cloth vibrating device for a filter press according to any one of claims 1 to 4, wherein the filter cloth vibrator is attached to the filter plate 1 so as to be detachable from one end 7a of at least one of the rotary arms 24.