JPH0719528Y2 - Filter cloth for filter press - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a filter cloth for a filter press, and in the present invention, to an improvement of a filter cloth which is provided independently between filter plates so as to run vertically. The purpose of the present invention is to provide a filter cloth which is inexpensive to manufacture and easy to mount on the machine body.

[0002]

2. Description of the Related Art As a conventional filter cloth of this type of filter press, there is one as shown in FIG. 4 of the invention of JP-B-55-38167. The filter cloth shown in FIG. 4 has a lacing joint formed on each of the upper and lower edges of the main body of the filter cloth that is cut into a rectangular shape. The support bar is inserted into and connected to them, the lower edge of which is connected to the lower edge of the filter cloth that is also provided between the adjacent filter plates, and the upper support bar is connected to the upper end of the drive band wound around the drive wheels. The lower support bar is wound around a roll provided on the lower part of the filter plate and is connected to the lower end of the drive band.

[0003]

[Problems to be Solved by the Invention] However, in the conventional filter cloth as described above, it takes a lot of time to process the lacing joint portion in order to manufacture it, which is expensive, and it is particularly difficult to mount it on the machine body. . That is, in the conventional filter cloth, in order to form the joint portion, the bag portion for inserting the support rod is formed, and then the bag is incised to form the zigzag-shaped joint portion. , To attach to the airframe, the upper edge can be attached to the airframe after connecting them in advance, but the lower edge must be attached to the airframe and then connected between narrow overflowing plates. Is extremely difficult.

[0004]

[Means for Solving the Problems] The present invention solves the above-mentioned conventional problems, and its gist is to fold the main body of the filter cloth cut into a rectangular shape in two. Then, a bag portion for inserting the support bar is formed in the two-folded portion, and at the lower end corners of the two folded left and right filter cloths, connecting rods for connecting these filter cloths to the drive band are inserted. The ear piece and the receiving portion for supporting the filter cloth tension rod are formed at the base of the ear piece.

[0005]

In this invention, when manufacturing a filter cloth, the same main body as the original fabric is folded in two, and the two folded portions are sewn together to form a bag portion. It is only necessary to attach connecting pieces in an ear shape at both corners of the lower edge, and a bag portion is formed at each of the upper edge and the lower edge of a conventional pair of filter cloths, and this is cut out in a zigzag shape. Compared to providing a section, it can be easily manufactured and is inexpensive.

Further, even when it is attached to the machine body, the support bar is inserted into the bag portion which is folded in two, the support bar is supported by the drive band, and the pair of filter cloths is hung between the filter plates. , It is only necessary to connect the ears at the corners of the lower edge to the lower end of the drive band.Because this connecting work can be done outside the row on the side of the filter plate, it is possible to use a conventional two-piece hanging filter cloth for the lower edge. It is much easier than inserting the support bar into the zigzag-shaped joint. Hereinafter, the invention will be specifically described with reference to the drawings.

[0007]

1 is a schematic side view of a filter press for supporting a filter cloth according to the present invention. A guide rail 2 is bridged between left and right frames 1 and 1. This guide rail is shown in FIG. A large number of filter plates 3 are movably arranged on the upper side of the unit 2. The filter cloth according to the present invention is provided between the filter plates, but is not shown in FIG.

FIG. 2 shows a state in which a filter cloth is suspended between the above filter plates, and the pair of filter cloths 4 and 4 provided between the filter plates 3 and 3 are
The upper support bar 5 is inserted into the upper end of the support bar 5
Ends of the filter plate 3 are connected to a chain 8 wound around a drive sprocket 7 of a mast 6 of the filter plate 3, and a pair of filter cloths 4,
The lower end of 4 is wound around a roll 9 provided at the lower part of the filter plate 3 and then joined to the lower end of a filter cloth 4 provided between adjacent filter plates, and then connected to the lower end of the chain 8. Incidentally, FIG.
In the figure, reference numeral 10 is a liquid supply plate for supplying a stock solution to be filtered between filter cloths, 11 is a liquid supply hole provided in the filter plate, and 12 is a filtrate extraction hole.

Next, the structure and suspension structure of the filter cloth 4 will be described in detail. As shown in FIG. 3, the filter cloth 4 is formed by folding a main body cut in a rectangular shape into two and forming a bag portion 4a for inserting a support bar in the two-folded portion.
As shown in FIG. 3, an ear portion 4b having a bag portion for inserting the connecting rod 13 is sewn on, and the receiving portion 4c of the filter cloth tension rod 14 is attached to the base portion thereof.
Is formed. The filter cloth tension rod 14 is for tensioning the lower end of the filter cloth 4 to the left and right. In the filter cloth 4 configured in this way,
As shown in FIG. 4, the connecting rod 13 is inserted into the ear portion 4 a, and the connecting rod 13 is provided at the lower end of the chain 8 to make the hanging fitting 1
5 is engaged with the engaging portion 15a. Also, reference numeral 16
Is a through hole for inserting the filter cloth tension rod, and 17 is a stopper of the filter cloth tension rod.

In order to manufacture the filter cloth 4 thus constructed, the original fabric is cut to form a rectangular main body, which is folded in two and the two folded portions are sewn together to form the bag portion 4a. Then, the ears 4a and the receiving portion 4c of the filter cloth tension rod 14 may be sewn to both corners of the lower end of the folded filter cloth piece. This work is simple because it is sufficient to form a zigzag-shaped connecting portion on the lower edge of the conventional filter cloth.

It is much easier to attach the filter cloth thus manufactured to the machine body as compared with the conventional one. That is, by inserting the support bar into the bag portion 4a in advance,
The end of this support bar is supported by a chain 8 wound around a drive sprocket 7, and a pair of filter cloths 4 and 4 is suspended between the filter plates. Next, the hanging filter cloth 4 is wound around a roll 9 and then the hooks 1 provided on the ears 4b at the corners and the chain 8
5 should be connected.

This connection work is simple because both ends of the connecting rod 13 inserted into the ear portion 4b may be supported by the engaging portions 15a of the hanging metal fitting 15. Filter cloth 4 between adjacent filter plates
With respect to the above, the connecting rod 13 inserted into the ear portion 4b provided at the lower end may be similarly supported by the engaging portion 15a. As a result, the lower end portions of the two filter cloths 4 and 4 are the hanging metal fittings. 15
Are connected by. Since the above-described connecting work of the two filter cloths 4 and 4 can be performed outside the row of the filter plates, the zigzag shape is formed between the conventional narrow filter plates, and the support bar is inserted into the connecting portion to insert the two filter cloths. Compared to connecting a piece of filter cloth, it is much easier.

[00013]

As described above, the filter cloth in the filter press according to the present invention can be manufactured at a low cost and can be easily attached to the machine body, thus completely eliminating the conventional problems.

[00014]

[Brief description of drawings]

FIG. 1 is a schematic side view of a filter press equipped with a filter cloth according to the present invention.

FIG. 2 is a vertical sectional side view showing a suspended state of the filter cloth according to the present invention.

FIG. 3 is a needle surface view showing a suspended state of the filter cloth according to the present invention.

FIG. 4 is an enlarged front view schematically showing a part of the connecting portion at the lower end of the filter cloth according to the present invention.

FIG. 5 is a front view of a hanging metal fitting for hanging the filter cloth according to the present invention.

6 is a cross-sectional view taken along the line xx of FIG.

[Explanation of symbols]

 4 Filter cloth 4a Bag part 4b Ear part 4c Receiving part 8 Chain

Claims (1)

[Scope of utility model registration request] 1. A main body of a filter cloth 4 cut into a rectangular shape is folded in two, and a bag portion 4a for inserting a support bar is inserted into the folded portion.
And at the bottom corners of the left and right filter cloths 4 that are folded in two, connecting rod insertion ears 4b for connecting these filter cloths 4 to the drive band 8 and the bases of these ears 4b. A filter cloth for a filter press, which is positioned at a position to form a receiving portion 4c for supporting the filter cloth tension rod.