JPH0716403A - Tension device for filter cloth of filter press - Google Patents

Abstract

PURPOSE:To provide a tension device for filter cloth of a filter press where the meandering motion of the filter cloth due to the inclination of a filter cloth guiding movable roller is prevented and there is no danger of tension cylinders interfering with each other even when plural tension devices for filter cloth are installed. CONSTITUTION:On a base frame 1 of a continuous filter cloth travelling type filter press, a filter cloth guiding fixed roller 10, a filter cloth guiding movable roller 11 and a single tension roller 14 for pulling the filter cloth guiding movable roller 11 are installed. And the tension cylinder 14 is installed at right angles to the axis of a filter press to pull the filter cloth guiding movable roller 11 through a string-like medium 12 and a guide roller 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a filter cloth tensioning device of a filter press for applying an appropriate tension to a filter cloth of a continuous filter cloth traveling type filter press.

[0002]

2. Description of the Related Art A continuous filter cloth traveling type filter press is a method in which a continuous filter cloth is wound around in a zigzag manner between an upper roller and a lower roller provided above and below a plurality of filter plates, and the filter plates are closed. This is an apparatus for performing filtration, peeling the dehydrated cake from the filter cloth, washing the filter cloth, and the like while continuously running the filter cloth with the filter cloth drive device with the filter plate opened.

In order to continuously run the filter cloth as described above, it is necessary to apply an appropriate tension to the filter cloth. For this reason, a continuous filter cloth traveling type filter press has conventionally been provided with a filter cloth tensioning device. In the conventional filter press, for example, as shown in Japanese Utility Model Publication No. 61-5937, a filter cloth guide is provided above the base frame. The structure is such that a fixed roller and a movable filter cloth guide roller are provided, and tension cylinders are provided on both sides of the upper portion of the base frame.

For this reason, in the conventional filter cloth tensioning device, the filter cloth guide movable roller tilts to the left and right even if a slight error occurs in the strokes or operation timings of the left and right tensioning cylinders, which causes the filter cloth to meander. There was a fear. Since these tension cylinders are provided in the axial direction of the filter press, they require a large space, especially when the filter plate group is divided into a plurality of zones and a filter cloth tension device is installed in each zone. Has a problem in that it is not easy to design because the tensioning cylinders may interfere with each other.

[0005]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art and can prevent the filter cloth meandering due to the inclination of the filter cloth guide movable roller, and also provide a plurality of filter cloth tensioning devices. The present invention has been completed in order to provide a filter cloth tensioning device for a filter press in which the tensioning cylinders do not interfere with each other even when installed.

[0006]

A first invention made to solve the above problems is to provide a filter cloth guide fixing roller and a filter cloth guide movable on an upper part of a base frame of a continuous filter cloth traveling type filter press. A roller and a single tension cylinder for pulling the filter cloth guide movable roller are installed. A second invention is that a filter cloth guide fixed roller, a filter cloth guide movable roller, and the filter cloth guide movable roller are pulled in the axial direction of the filter press on the upper part of the base frame of the continuous filter cloth traveling type filter press. And a leading end of the string-shaped medium is connected via a guide roller to a tension cylinder provided in a direction perpendicular to the axis of the filter press.

[0007]

According to the first aspect of the invention, since the filter cloth guide movable roller is pulled by a single tension cylinder, there is no error in the strokes and operation timings of the left and right tension cylinders as in the conventional case, and the filter cloth can be removed. There is no risk of tilting the movable guide roller. Therefore, the meandering of the filter cloth can be prevented. According to the second invention, the tension cylinder is provided in the direction perpendicular to the axis of the filter press, and the filter cloth guide movable roller is pulled through the guide roller in the axis direction of the filter press. Does not get in the way on the base frame of the filter press. Therefore, even when the filter cloth tensioning device is installed in each zone, the tensioning cylinders do not interfere with each other. Furthermore, according to the third invention, the advantages of the first and second inventions can be exhibited at the same time.

[0008]

The present invention will be described in more detail below with reference to an embodiment of the third invention. 1 and 2 show a first embodiment, in which 1 is a base frame, 2 is a large number of openable / closable filter plates, 3 and 4 are upper rollers provided above and below the filter plate 2. The lower rollers 5 are these upper rollers 3
It is a continuous filter cloth that is spun between the lower roller 4 and the lower roller 4. 6 is a filter cloth driving device provided on the upper part of the base frame 1, 7 is a filter cloth cleaning device, 8 is a meandering adjusting device, and the filter cloth 5 passes through each of these devices, and on the upper part of the base frame 1. It is designed to pass through the provided filter cloth tensioning device 9 of the present invention.

The filter cloth tensioning device 9 of the present invention comprises a filter cloth guide fixed roller 10, a filter cloth guide movable roller 11 arranged to face the filter cloth guide fixed roller 10, and the filter cloth guide movable roller 11 in the axial direction of the filter press. And a cord-shaped medium (12) such as a chain or a wire for pulling the cord. In this embodiment, the leading end of the cord-shaped medium 12 is connected via a guide roller 13 to a single tension cylinder 14 provided in the up-down direction which is a direction perpendicular to the axis of the filter press. For this reason,
By operating this single tension cylinder 14 and pulling the filter cloth guide movable roller 11 to the right in the drawing, a large tension can be applied to the filter cloth 5, and conversely, the filter cloth guide movable roller can be applied.
The tension of the filter cloth 5 can be reduced by returning 11 to the left in the drawing. The filter cloth guide movable roller 11 is guided by the left and right guide rails 15, and the single tension cylinder 14
It will not tilt to the left or right when towed by.

3 and 4 show a second embodiment,
An example is shown in which a single tensioning cylinder 14 is provided in the upper part of the base frame 1 in a lateral direction which is a direction perpendicular to the axis of the filter press.

In either case, the tension cylinder
The filter cloth 5 movable between the filter cloth guide fixed roller 10 and the filter cloth guide movable roller 11 is pulled by the filter medium 14 through the string-shaped medium 12 in the axial direction of the filter press.
However, unlike the conventional one, the single tensioning cylinder 14 is provided in the first aspect of the invention, so that the tilting of the filter cloth guide movable roller due to non-uniform movement of the left and right tensioning cylinders is prevented. can do.

Further, in the second aspect of the invention, the tension cylinder 14 provided in the direction perpendicular to the axis of the filter press pulls the cord-shaped medium 12, so that the tension cylinder 14 is pulled.
Do not extend long along the axis of the filter press. Therefore, even when a plurality of zones are provided as in the embodiment, there is no possibility that the tensioning cylinders in the adjacent zones interfere with each other.

[0013]

As described above, since the filter cloth tensioning device of the filter press of the first invention has the single tension cylinder, the filter cloth meandering due to the inclination of the filter cloth guide movable roller is prevented. be able to. In the filter cloth tensioning device for the filter press of the second invention, the tensioning cylinder is provided in the direction perpendicular to the axis of the filter press, and the filter cloth guide movable roller is pulled through the cord-shaped medium. Even when a plurality of filter cloth tensioning devices are installed on the top, the tensioning cylinders do not interfere with each other.

[Brief description of drawings]

FIG. 1 is a front view showing a first embodiment.

FIG. 2 is a plan view showing a first embodiment.

FIG. 3 is a front view showing a second embodiment.

FIG. 4 is a plan view showing a second embodiment.

[Explanation of symbols]

1 base frame, 5 filter cloth, 10 filter cloth guide fixed roller, 11 filter cloth guide movable roller, 12 string medium, 13 guide roller, 14 tension cylinder

Claims (3)

[Claims] 1. A filter cloth guide fixed roller, a filter cloth guide movable roller, and a single tension cylinder for pulling the filter cloth guide movable roller, which is provided above a base frame of a continuous filter cloth traveling type filter press. A filter cloth tensioning device for a filter press, characterized in that 2. A filter cloth guide fixed roller, a filter cloth guide movable roller, and a filter cloth guide movable roller for pulling the filter cloth guide movable roller in an axial direction of the filter press on a base frame of a continuous filter cloth traveling type filter press. A filter-medium tensioning device for a filter press, characterized in that a string-shaped medium is provided, and a tip end of the string-shaped medium is connected to a tension cylinder provided at right angles to an axis of the filter press via a guide roller. . 3. A single tension cylinder is provided.
A filter cloth tensioning device for the described filter press.