JP3022895B2 - Filter cloth for independent filter cloth traveling type filter press and its hanging device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a filter cloth used in a filter press for traveling independently of a filter cloth, and an improvement in a filter cloth hanging apparatus using the filter cloth.

[0002]

2. Description of the Related Art As a filter cloth for a single filter cloth traveling type filter press, for example, Japanese Patent Publication No. 55-38167, No. 4
As shown in the figure, a pair of filter cloths provided between the filter cloths are provided with support bars at the upper end edge and the lower end edge thereof, respectively, and the upper and lower support bars are wound around the drive wheels above the filter plate. Section, and the filter cloth was run up and down.
A filter cloth cut in a concave shape from both ends of the lower end portion of the filter cloth to the center thereof is, for example, Japanese Utility Model Application Laid-Open No. 5-39609.

[0003]

In the conventional apparatus before and after the above, the cake generated between the filter plates in order to run the filter cloth can be reliably discharged. Lowering, the lower support bar rises and both intersect between the filter plates. At the time of the crossover, depending on how the cake adheres to the filter cloth, the upper support bar and the lower support bar may come into contact with each other and be damaged. Further, in the above-mentioned conventional apparatus, since the lower filter cloth support bar is eliminated, there is no possibility that the upper support bar of the filter cloth abuts on the lower end of the filter cloth when the filter cloth travels. There is a risk that the filter cloth will sag and the filter cloth will wrinkle in the middle concave notch of the lower end.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the gist of the invention is to provide a mounting portion for an upper support bar at an upper end thereof, and make the lower end thereof a concave shape. Notch, in the filter cloth with the lower left and right lower edges attached to the hanging metal fittings, a bag portion is formed at the lower edge portion of the filter cloth cut out in the concave shape, and a rope is inserted through this bag portion,
The ends of the rope are fastened to the lower side edges of the filter cloth, respectively, so that the rope can be locked to the hanging metal fittings at the right and left lower ends of the filter cloth. And this filter cloth suspending device provides an upper support bar at the upper end of a pair of filter cloths provided between the filter plates, and the lower end of the filter cloth is provided on a guide roll provided at the lower part of the front and rear filter plates. While hanging each,
In a filter press, one end of a drive chain wound around a sprocket is connected to an upper support bar of the filter cloth, and the other end is connected to lower left and right edges of the filter cloth to be able to move up and down.
Cut the lower end of the filter cloth into a concave shape, forming a bag portion at the cut lower end and the lower side edge of the filter cloth,
A rope is inserted through this bag portion, the end of the rope is fastened to the filter cloth, the rope is locked to hanging metal fittings provided at the lower left and right edges of the filter cloth, and the rope is arranged along the side wall of the filter plate. setting the guide bar
And a hanging metal fitting is engaged so as to be able to move up and down.

[0005]

The filter cloth and the apparatus for suspending the filter cloth according to the present invention
When the filter cloth is run between the filter plates, when the upper support bar of the filter cloth and the lower end of the filter cloth cross each other, there is no contact between the support bars. In this case, the damage of the hanging member can be eliminated. That is, low
When the loop is pulled by the hanging bracket, the central part of the cut-off lower end of the sagging filter cloth is pulled by the rope , and a horizontal and vertical component force is generated, preventing the filter cloth from sagging. I do. The lower side edges of the filter cloth are also pulled in the vertical direction, so that the filter cloth can be tensioned. Therefore, there is no contact when the upper support bar and the lower end of the filter cloth cross each other due to the slack, and wrinkling due to the slack does not occur. In addition, a guide with hanging brackets arranged along the side wall of the filter plate
When the filter cloth is run on the drive chain , the hanging fitting is regulated by the guide bar , and the filter cloth moves up and down while keeping a constant distance from the guide bar . That is, the driving Ji
Prevents the filter cloth from meandering inside the chain and prevents the drive chain from being pinched between the filter plates when the plate is closed. Since the filter cloth is always kept in tension, the filter cloth is prevented from slackening and wrinkling.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to an embodiment. First, in FIG. 1, reference numeral 1 denotes a frame, reference numeral 2 denotes a guide rail bridged between the frames 1 and 1, and 3 denotes a movable rail on the guide rail. A plurality of filter plates are provided, and a chain 4 is connected between the filter plates 3.3. Reference numeral 5 denotes a driving device for the filter plate 3 extending along the guide rail 2, and a movable head 6.6 disposed on both sides of the filter plate group 3.
When the hydraulic cylinder 7 is expanded and contracted, the filter plate groups 3... Can be simultaneously opened and closed from both sides. Reference numeral 8 denotes a drive shaft, as shown in FIG.
This is for driving the filter cloth 9 suspended between the filter plates 3 and 3 to move up and down.

Next, the filter cloth 9 of the present invention will be described in detail with reference to FIGS. 2 and 3. At the upper end of the filter cloth 9, a mounting portion 11 for an upper support bar 10 is provided. Is cut out in a concave shape at the lower end, and a bag portion 12 is formed in this cut-out portion. Bag portions 13.13 are also formed on both lower side edges of the filter cloth 9, respectively.
A single rope 14 is passed through, and both sides of the rope 14 are fastened at the upper portions of the bag portions 13.13 at the lower side edges of the filter cloth 9 (points A and E in FIG. 2). . The ropes 14 are adapted to be engaged with the hanging members 17 of the drive chain 16 at the attachment portions 15.15 at the lower left and right ends of the filter cloth 9. Attachment 15.15 of hanging bracket 17 of filter cloth 9 (FIG. 2.
When the rope 14 is pulled at the points B and D, the central portion (C)
At the point, vertical and horizontal forces are applied, and the fastening portions (A, F, E, G) of the ropes 14 at the lower side edges of the filter cloth 9 are applied.
In (point), a vertical force acts. Therefore, when the rope 14 is pulled by the mounting portion 15.15 of the hanging bracket 17, the filter cloth 9
Is spread, sagging is reduced and wrinkles are prevented. The bag 12.13 provided on the filter cloth 9 serves as a guide for the rope 14 and can also reinforce the end of the filter cloth 9. The rope 14 is fastened at the middle of the middle concave bag portion 12 of the filter cloth 9 (point C in FIG. 2), and is stopped at the lower end portion and the upper end portion of each bag portion 13.13 on the lower side edges. (Figure 2.
(A, F, E, G points), the filter cloth 9 can be spread uniformly even if the drive chain tension is different for some reason.

The hanging mechanism and the driving mechanism of the filter cloth 9 will be described in detail with reference to FIGS. 3 and 4.
A pair of filter cloths 9.9 are provided between them, and the upper ends of the filter cloths 9.9 are attached and attached to the upper support bar 10. After the lower end of the filter cloth 9 is wrapped around guide rolls 18 provided at the lower part of the filter plate 3, as shown in FIG. 4, the filter cloth 9 is attached to the filter cloth 9 similarly provided between the adjacent filter plates 3.3. It is.
On the other hand, a sprocket 19 is provided on the drive shaft 8 so as to be slidable only.
6 is wound around. One end of the drive chain 16 is connected to the upper support bar 10 of the filter cloth 9, and the other end is connected to the rope 14 inserted through the bag portion 12.13 of the filter cloth 9 via the hanging bracket 17, 8. A pair of filter cloths between 3.3.
9 are suspended. Then, when the drive shaft 8 is rotated, the filter cloth 9.9 moves up and down like a seesaw between the filter plates 3.3. As shown in FIG. 2, when the rope 14 is pulled at the point B and the point D by the hanging bracket 17, the rope 14 is inserted into the bag 12.3 of the filter cloth 9.
The tension at points B and D acts directly on points A, C and E because it is free between BC, CD and DE, and the slack is eliminated because the rope is tensioned. ing.

Reference numeral 20 denotes a guide bar provided along the side surface of the filter plate 3, and is a mounting portion 15 of the hanging member 17 of the filter cloth 9.
When the filter cloth 9 is raised and lowered by the drive chain 16, the attachment portion 15.15 of the drive chain 16 and the filter cloth 9 to the hanging bracket 17 is fitted to the guide bar 2.
It is regulated to 0 and moves up and down along the guide bar 20. Therefore, the filter cloth 9 moves up and down with a certain interval from the guide bar 20 to limit the meandering of the filter cloth 9 and the drive chain 16, sandwich the drive chain 16 between the filter plates 3.3 and wrinkle the filter cloth 9. Prevent leaning. In addition, since the guide bar 20 also regulates the sagging reaction force when the filter cloth 9 moves up and down, the guide bar 20 is provided, so that the wrinkle of the filter cloth 9 caused by the slack of the filter cloth 9 is reduced. Cloth 9 or drive chain 1
6 can surely be prevented from meandering. Reference numeral 21 denotes a bracket for supporting the drive shaft 8 erected on the upper part of the filter plate 3, and reference numeral 22 denotes a bracket that hangs from the lower end of the filter plate 3 and supports the guide roll 18.

[0010]

The present invention is configured as described above,
When the filter cloth is lifted and lowered, the rope cloth portion where the rope sags can be pulled in the vertical and horizontal directions to prevent slack.
That is, in the conventional apparatus in which the filter cloth support bars are provided on the upper and lower portions of the filter cloth, the upper and lower support bars collide during the travel of the filter cloth, and there is a possibility that the filter cloth and its hanging apparatus may be damaged. In the one in which the lower support bar is abolished by cutting the lower end of the filter cloth into a concave shape, the filter cloth is slack, and there is a risk of wrinkling, but in the present invention, Then, pull the most loose part of the filter cloth in the vertical and horizontal directions, and then pull both ends of the filter cloth in the vertical direction to tension the filter cloth. There is no contact at the time of crossover, the size of the open plate can be reduced, and the running speed of the filter cloth can be increased. Furthermore, if the drive bar and the filter cloth are regulated by the guide bar arranged along the side surface of the filter plate to raise and lower the space, it is possible to reliably prevent the chain from being pinched between the filter plates and the filter cloth from wrinkling. Things.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a filter press used in the present invention.

FIG. 2 is a plan view of a main part of the filter cloth according to the present invention.

FIG. 3 is a front view of a filter cloth hanging apparatus according to the present invention.

FIG. 4 is a side view of a lower portion of the filter plate when the filter plate is opened.

[Explanation of symbols]

 REFERENCE SIGNS LIST 3 filter plate 9 filter cloth 10 upper support bar 11 mounting part 12, 13 bag part 14 rope 15 mounting part 16 drive chain 17 hanging fitting 18 guide roll 19 sprocket 20 guide bar

Claims (2)

(57) [Claims] 1. A filter cloth 9 in which an attachment portion 11 of an upper support bar 10 is provided at an upper end portion thereof, and a lower end portion thereof is cut out in a concave shape, and left and right lower end edges are used as attachment portions 15 of a hanging bracket 17. A bag 12 is attached to the lower end of the filter cloth 9 cut in a concave shape.
The rope 14 is inserted through the bag portion 12, and the ends of the rope 14 are fastened to the lower side edges of the filter cloth 9, respectively.
A filter cloth for a single filter cloth traveling type filter press, characterized in that the rope 14 can be locked to the hanging bracket 17 of the filter cloth 9. 2. A pair of filter cloths 9.9 provided between the filter plates 3.3.
A guide roll 1 provided with an upper support bar 10 at the upper end of the filter roll 9.9 and the lower end of the filter cloth 9.9 provided below the front and rear filter plates 3.3.
One end of the drive chain 16 wound around the sprocket 19 above the filter plate 3.3 is connected to the upper support bar 10 of the filter cloth 9 while the other end is wound around the filter cloth 3.3. In a filter press that is connected to the lower edge and can be moved up and down, the lower end of the filter cloth 9 is cut in a concave shape, and a bag portion 12 is formed at the cut lower edge.
A rope 14 is inserted through the bag portion 12 and the rope 14
Are fixed to the lower side edges of the filter cloth 9 respectively, and the ropes 14 are attached to the hanging fittings 17.17 provided on the lower right and left edges of the filter cloth 9.
Characterized in that a hanging bracket 17 is engaged with a guide bar 20 disposed along the side wall of the filter plate 3 so as to be able to move up and down. apparatus.