JPH04882Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a filter press.

[Conventional technology and its problems]

As shown in FIGS. 5 and 6, a filter press usually has a guide frame 22 built on a fixed frame 21, and a plurality of filter plates 23 arranged in parallel in a movable manner on this guide frame 22. A tightening plate 24 is provided between the fixed frame 21 and the filter plate 23 at the end.
A cylinder 25 for tightening the filter plate is attached to the fixed frame 21, and each filter plate 23 is tightened by the cylinder 25 for tightening the filter plate via the tightening plate 24.

In such a filter press, the stroke of the filter plate tightening cylinder 25 needs to be long enough to move the clamping plate 24 from the open state shown in FIG. 5 to the closed state shown in FIG. . Therefore, in order to increase the size by increasing the number of filter plates, the cylinder stroke will naturally become longer, so a larger cylinder must be used, which increases the installation area and increases the cost. It was hot.

Therefore, this invention aims to provide a filter press in which even if the number of filter plates is increased to increase the size, the cylinder for tightening the filter plates itself can be small and have a short stroke. be.

[Means for solving problems]

In order to solve the above problems, this idea
In the filter press described above, a cylinder for moving the clamping plate is attached to the rod of the cylinder for tightening the filter plate, and by moving the clamping plate with this moving cylinder, the clamping plate and the filter plate can be tightened. The clamping plate is provided with a spacer that can be inserted into and taken out from the gap formed between the attachment cylinder and the rod tip.

[Effect]

In the filter press of the above structure, the clamping plate is moved by a moving cylinder separate from the filter plate clamping cylinder, and this moving cylinder is used to move the clamping plate to the filter plate. When the plate is moved to the closed position, a gap is formed between the clamping plate and the rod tip of the filter plate tightening cylinder, but the clamping plate has a spacer that can be inserted into and taken out from this gap. It is provided.

Therefore, when tightening the filter plate, the moving cylinder advances the tightening plate to the closed position of the filter plate, and then the tip of the rod of the filter plate tightening cylinder and the tightening plate are connected. By inserting a spacer in between and moving the rod of the filter plate tightening cylinder forward, the filter plate is tightened via the spacer, so that the stroke of the filter plate tightening cylinder is shortened by the amount of the spacer.

〔Example〕

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

As shown in FIG. 1, a guide frame 2 is installed between the fixed frames 1, 1, and a plurality of filter plates 3 are arranged in parallel on the guide frame 2.
A filter cloth is interposed between each filter plate 3. The intervening method may be either a fixed filter cloth type in which the filter cloth is fixed to the filter plate, or a filter cloth traveling type in which the filter cloth strip is installed between each filter plate in a zigzag shape.

A clamping plate 4 is movably provided on the guide frame 2 at the end position of the filter plate 3.

Further, a filter plate tightening cylinder 5 is attached to the fixed frame 1, and this cylinder can be used by using a hydraulic cylinder with the capacity and stroke necessary to tighten the filter plate in the closed state. good. Usually a stroke of 50-100mm is sufficient.
A bracket 7 is protruded from the upper end of the rod 6 of the filter plate tightening cylinder 5, and a moving cylinder 8 for the tightening plate 4 is attached to the upper end of this bracket 7. A tightening plate 4 is fixed to the tip of the rod 9. The tightening plate 4 and each filter plate 3 are connected by a link (not shown), and each filter plate 3 is opened and closed by movement of the tightening plate 4.

When the clamping plate 4 is advanced by the moving cylinder 8 to close each filter plate 3, a gap is formed between the clamping plate 4 and the tip of the rod 6 of the filter plate clamping cylinder 5. Therefore, a spacer 10 that can be freely inserted into and taken out from this gap is provided on the tightening plate 4. That is, as shown in FIG. 4, a guide rail 11 is provided horizontally above the gap, a spacer 10 is movably suspended from the guide rail 11 by a bracket 12, and a cylinder 1 for taking in and taking out the spacer is installed.
3 allows the spacer 10 to be moved in and out of the gap.

As the cylinder 8 for moving the clamping plate 4 and the cylinder 13 for taking in and taking out the spacer, it is sufficient to use a small pneumatic or hydraulic cylinder with a small capacity.

Bolts 14 are protruded at regular intervals from the peripheral edge of the distal end surface of the rod 6 of the filter plate tightening cylinder 5, and the spacer 10 is fitted inside the bolts 14.

Next, its effect will be explained.

When tightening the filter plate 3, first move the tightening plate 4 forward with the moving cylinder 8 and tighten the filter plate 3.
Close. As a result, a gap is formed between the clamping plate 4 and the distal end surface of the rod 6 of the filter plate clamping cylinder 5. The spacer 10 is moved and fitted into this gap by the spacer insertion/removal cylinder 13. Thereafter, when the rod 6 of the filter plate clamping cylinder 5 is advanced, the clamping plate 4 clamps the filter plate 3 via the spacer 10, and filtration and dewatering is performed (see FIG. 2).

When the filtration and dewatering is completed, the filter plate tightening cylinder 5
After contracting the rod 6 to release the tightening of the filter plate 3, and then removing the spacer 10 from the gap using the spacer insertion/removal cylinder 13,
When the moving cylinder 8 is contracted and the clamping plate 4 is retreated, the filter plate 3 is opened. Thereafter, the above action is repeated to perform filtration and dehydration.

[Effect of idea]

As mentioned above, this invention allows the movement of the tightening plate to
Since this is done by a cylinder separate from the cylinder for tightening the filter plate, the stroke of the cylinder for tightening the filter plate is shortened, and the capacity of the cylinder can be reduced.
This has the effect of reducing the weight of the entire device and reducing costs.

[Brief explanation of drawings]

Figure 1 is a schematic front view showing an embodiment of the filter press of this invention when the plates are closed, Figures 2 and 3 are partially enlarged views when the plates are closed and opened, respectively.
The figure is a side view of a clamping plate, and FIGS. 5 and 6 are schematic front views of a conventional filter press when the plate is opened and when it is closed, respectively. 1...Fixed frame, 2...Guide frame,
3... Filter plate, 4... Tightening plate, 5... Filter plate tightening cylinder, 6... Rod, 8... Moving cylinder.

Claims (1)

[Scope of utility model registration request] A guide frame is constructed on the fixed frame, a plurality of filter plates are movably arranged in parallel on the guide frame, and a tightening plate is movably provided between the fixed frame and the filter plate at the end, In a filter press, a cylinder for tightening the filter plate is attached to the fixed frame, and the cylinder for tightening the filter plate tightens each of the above filter plates through the tightening plate. By installing a cylinder for moving the plate and moving the tightening plate using the moving cylinder, the gap formed between the tightening plate and the rod tip of the cylinder for tightening the filter plate can be fixed. A filter press characterized in that the clamping plate is provided with a spacer that can be freely put in and taken out.