JP2549999Y2 - Adjustment device for filter cloth tension of filter cloth traveling type filter press - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a filter press for adjusting the tension of a filter cloth in a filter press in which a filter cloth independently provided between each filter plate is moved up and down to discharge cake generated between the filter plates. It relates to improvement of the device.

[0002]

2. Description of the Related Art There are Japanese Utility Model Publication No. 60-22970 and Japanese Utility Model Publication No. 2-3010 as an apparatus for adjusting the tension of a filter plate in this type of filter press. 60-22970
No. 1 is designed to prevent the filter cloth from sagging or abnormal tension by adjusting the length with a turnbuckle and an adjusting screw while the filter cloth expands and contracts due to clogging, etc. In Japanese Patent Publication No. 2-3010, the tension is adjusted by an adjusting screw and a spring.

[0003]

However, in the case of using the adjusting screw or the turnbuckle as described above, it takes a long time to perform the adjustment, and the adjustment range is limited. That is, when a large filter cloth having a filtration area of 2 m × 2 m is clogged, the filter cloth may be shrunk by 100 mm or more.
There is a case where the adjustment allowance cannot be taken by turning and running.

[0004]

SUMMARY OF THE INVENTION The present invention embodies a device which can be adjusted quickly and has a long adjustment allowance. The upper ends of a pair of filter cloths provided so as to cover the filtration surface of the filter plate are joined together, and the lower ends of the pair of filter cloths are wrapped around rolls provided at the lower portions of the left and right filter plates. A drive wheel that is bonded to one lower end of a pair of filter cloths provided between adjacent filter plates in the same manner as described above, and the bonded part and the upper part of the filter cloth are provided on the upper part of the filter plate. In a filter press in which a pair of filter cloths can be freely moved up and down between filter plates, a hook with a lower end bent is provided.
Channel-shaped cross section vertically arranged on the back side of the hook
Of the rib, and a lock rotatably supported on both side walls of the rib
A hook consisting of a nail is provided, and this hook is attached to both sides of the filter plate.
Slidable up and down along the guide rails provided for each
While arranging, connect the connecting pins provided at the bottom corners of the filter cloth.
Hook on the lower end of the hook and connect to the upper support bar of the filter cloth.
Insert the end of the tied chain through the hollow of the rib
The link pin of the inserted chain is locked to the locking claw.
It is.

[0005]

The apparatus according to the present invention is constructed as described above. To adjust the tension of the filter cloth, it is sufficient to release the drive band inserted through the hanging bracket and slide it. That is, by sliding the driving band upward, the loop formed by the filter cloth and the driving band becomes large, and the filter cloth becomes slack. By sliding downward, the loop becomes small and the filter cloth becomes tight. Things. In this adjustment, the drive band is slid according to the present invention, and the adjustment range can be continuously adjusted from a very small to a large width. In comparison, the operation is simple and quick. Less than,
This invention will be specifically described with reference to the drawings.

[0006]

FIG. 1 is a perspective view conceptually showing a filter cloth tension adjusting device according to the present invention, and FIG. 2 is a partial longitudinal side view showing a state where the filter cloth is suspended between filter plates. FIG. Symbol 1 in the figure
The filter cloth, 2 is an upper support bar, 3 is a filter plate, 4 is a return roll provided below the filter plate 3, 5 is a drive wheel of the filter cloth 1 provided above the filter plate 3, and 6 is a chain wound around the drive wheel 5. ,
Reference numeral 7 denotes a stock solution supply port. One end of the chain 6 is connected to the above-described upper support bar 2. Further, the lower end of the filter cloth 1 is wound around a return roll 4 below the filter plate 3 and connected to a chain 6 via a hanging member 8, so that a loop is formed by the filter cloth 1 and the chain 6, and the drive is performed. By rotating the wheel 5 forward and backward, the filter cloth 1 travels up and down between the filter plates.

Next, the structure of the above-mentioned hanging metal part 8 will be described in detail. Metal hanging as shown in FIGS. 3 and 4 are folded to the lower end
A bent hook 8a and a longitudinally arranged hook 8a
A rib 11 having a channel-shaped cross section is provided.
Locking claw 8b rotatably supported on both side walls of
I have. Then, hanging the brackets 8 engage the guide rails 9 of the filter plates 3, shows the lower part of the state of suspended a filter cloth 1 between the plates Iro by connecting the corner portions of the left and right of the hanging bracket 8 Nironuno 1 ing. That is, after the lower end of the filter cloth 1 is wound around the return roll 4, the connection pins 10 attached to the left and right ears of the lower edge thereof are hooked to the hooks 8 as shown in FIGS. 8a, while the chain 6 and the hanger 8 are connected to the hollow portion 11a of the rib 11 provided with the chain 6 behind the hook 8a.
The chain 6 and the hanging fitting 8 are fixed by engaging a locking claw 8b provided on the hanging fitting 8 with the link pin 6a of the inserted chain 6.

FIG. 5 shows the structure of the fixed part and the hanging fitting 8.
9 will be described in more detail.
As shown in FIG. 5 to FIG. 7, a pair of left and right is provided at the lower end of the hanging bracket 8, and a connecting pin 10 attached to the left and right ears of the lower end of the filter cloth 1 is engaged with the hook 8a. In the illustrated example, the connection pins 10 attached to the respective ears of the pair of filter cloths are engaged. However, the ears of the pair of filter cloths 1 may be attached to the single connection pin 10 and engaged. Good.

Next, on the back side of the hook 8a, the filter plate 3 side
A channel-shaped rib 11 slidably engaged with a channel-shaped rail 9 provided in the vertical direction of the surface is provided. In a hollow portion 11a of the rib 11, a chain 6 wound around a driving wheel 5 is provided. It has been inserted. Then, each other locking claw 8b which rotatably and支架the side walls of the channel-shaped rib 11 is pivoted, the locking claws 8b are disengaged the link pin 6a of the chain 6 inserted through the rib 11 It's free. Reference numeral 12 denotes the operation lever, and the locking claw 8b is not shown, but is normally urged so that its tip engages with the link pin 6a. (See FIGS. 5 to 7.) In FIG. 6, reference numeral 13 denotes a liner for allowing the hanging fitting 8 to slide smoothly.

The device according to the present invention is constructed as described above, so that the tension of the filter cloth 1 can be adjusted by using the locking claw.
The chain 6 can be slid in the rib 11 by removing the link pin 8b from the link pin 6a of the chain 6. Therefore, when the filter cloth 1 contracts due to clogging or the like and becomes too tight, 11 may be slid upward to lengthen the portion of the chain 11 that forms a loop with the filter cloth 1. This operation can be quickly performed by a simple operation of merely engaging and disengaging the locking claw 8b with the link pin 6a, and the adjustment range is determined by the pitch of the link pin 6a and the length of the fixing allowance of the connecting portion of the chain 6. In this way, a large adjustment can be performed in a stepless manner, and a quick and large adjustment is possible as compared with a conventional adjustment screw, turnbuckle, or the like.

[0011]

As described above, the adjusting device according to the present invention can easily and quickly adjust the degree of tension of the filter cloth. In particular, the adjusting range can be increased as compared with the conventional adjusting device using screws.
Conventionally, the present invention is used for hanging a filter cloth of a large-sized filter press (large-area filter cloth), which has had a problem of adjusting the expansion and contraction, and has a great effect.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a filter cloth tension adjusting device according to the present invention.

FIG. 2 is a partial vertical cross-sectional view showing a state in which a filter cloth is suspended between filter plates.

FIG. 3 is a front view showing a suspended state of a lower portion of the filter cloth.

FIG. 4 is a sectional view of the filter plate in the plan view of FIG. 3;

FIG. 5 is a front view of the left side of a pair of hanging members of the filter cloth according to the present invention.

FIG. 6 is a plan view of FIG. 5;

FIG. 7 is a right side view of FIG.

FIG. 8 is a side view of the fixing claw according to the present invention.

FIG. 9 is a front view of FIG. 8;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Filter cloth 2 Upper support bar 3 Filter plate 4 Return roll 5 Drive wheel 6 Chain 8 Suspension fitting 8a Hook 8b Locking claw 9 Guide rail 10 Connecting pin 11 Rib 11a Hollow part

Claims (1)

(57) [Scope of request for utility model registration] An upper end of a pair of filter cloths 1 provided so as to cover the filtering surfaces of left and right filter plates 3 between filter plates, and a lower end of the pair of filter cloths 1 is attached to the left and right filter cloths. After being wrapped around a return roll 4 provided at the lower part of the plate 3, it is attached to one lower end of a pair of filter cloths 1 provided between adjacent filter plates in the same manner as described above. Filter plate 3 with the joint at the top of cloth 1
Hook with a lower end bent in a filter press in which a pair of filter cloths 1 are connected to each other by a chain 6 wrapped around a drive wheel 5 provided at an upper portion thereof and can run up and down between the filter plates.
8a and hook 8a are provided on the back side in a vertical direction.
Channel-shaped rib 11 and pivots on both side walls of this rib 11
A hook 8 consisting of a locking claw 8b supported freely;
Guide rails provided with the hanging fittings 8 on both sides of the filter plate 3 respectively.
And slidably up and down along the 9.9
Attach the connecting pins 10.10 provided at both lower corners of the filter cloth 1
8a, and the upper support bar of the filter cloth 1
2 is connected to the hollow portion 1 of the rib 11
1a and the link pin 6 of the chain 6
a filter cloth tension adjusting device in a filter cloth traveling type filter press in which a is locked by a locking claw 8c .