JP2614399B2 - Filter cloth traveling type filter press - 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 press for traveling on a filter cloth used for dewatering sewage sludge and the like.

[0002]

2. Description of the Related Art A filter cloth traveling type filter press is provided with a continuous filter cloth between a plurality of openable and closable filter plate groups so that the filter cloth can be dehydrated with the filter plate closed. In addition, the filter plate is opened, and the dewatered cake is removed and the filter cloth is washed while running the continuous filter cloth. However,
If the total length of the filter cloth exceeds 100 m with the increase in the size of the filter press, the filter cloth must be stretched because a large tension must be applied to run the filter cloth.
As a result, there is a problem that meandering and wrinkling of the filter cloth become severe.

For this reason, it has been considered that the length of one filter cloth is shortened by dividing the filter plate group into a plurality of zones and providing one continuous filter cloth for each zone. . However, in this case, the amount of elongation differs for each filter cloth provided for each zone, and the direction of elongation varies from side to side, so that the meandering amount and meandering direction of the filter cloths differ. Therefore, as shown in Japanese Utility Model Publication No. 61-5937, it has been proposed to provide a meandering correction device for each zone.However, when the meandering amount of the filter cloth for each zone is different, when the meandering amount is large, When the meandering direction is different, the adjustment method is difficult, and there is a problem that the apparatus becomes complicated and the manufacturing cost increases.

[0004]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned conventional problems and provides a filter cloth traveling type filter press in which the meandering of different filter cloths in each zone can be easily and reliably corrected. It was made to provide.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a filter cloth traveling type filter press in which a continuous filter cloth is provided between a plurality of openable and closable filter plate groups. , The filter plate group is divided into a plurality of zones, one continuous filter cloth is provided for each zone, and a filter plate separation chain provided on both sides of the filter plate to determine the interval between the filter plates when the filter plate is opened Wherein a length adjusting means is provided in a portion between the zones.

[0006]

The filter cloth traveling type filter press of the present invention divides the filter plate group into a plurality of zones and provides one continuous filter cloth for each zone. In addition, the length per filter cloth can be reduced. In addition, since the length adjusting means is provided in the portion between the zones of the filter plate separating chain which determines the interval between the filter plates at the time of opening provided on both the left and right sides of the filter plate, the filter plate for each zone is thereby provided. Can be adjusted, and at the same time, the direction (inclination) of the filter cloth running roller attached to the filter plate can be adjusted for each zone. The method of adjusting the direction of the filter cloth running roller is most effective for correcting the meandering, and the meandering of the filter cloth different for each zone can be corrected simply and reliably.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to the illustrated embodiments. FIG. 1 is a front view showing the entire filter cloth traveling type filter press of the embodiment. In FIG. 1, the filter plate is omitted and the filter cloth traveling rollers 1, 2 provided above and below the filter plate are omitted.
And a filter cloth 3 stretched in a zigzag manner between these filter cloth running rollers 1 and 2. In this embodiment, the filter plate group is divided into two zones on the left and right, and one continuous filter cloth 3, 3 is stretched for each zone. These filter cloths 3 are washed while running at the time of opening the plate by a filter cloth driving device 4, a filter cloth tensioning device 5, a filter cloth cleaning device 6, and the like provided for each zone. Reference numeral 7 denotes a large cylinder for opening and closing the filter plate group, 8 denotes a loose frame driven by the cylinder 7, and 9 denotes a fixed front frame.

As shown in the plan view of FIG. 2, filter plate separating chains 11, 11 are provided on both left and right sides of each filter plate 10.
The filter plate separating chains 11, 11 are used to keep the distance between the filter plates 10, 10 constant when the loose frame 8 is pulled rightward by the cylinder 7 and the filter plates 10 are opened. is there. Conventionally, the filter plate separating chain 11 is provided evenly between the loose frame 8 and the front frame 9 as shown in FIG. 5, and when the meandering of the filter cloth 3 is severe, the adjusting bolts of the loose frame 8 and the front frame 9 are used. 12 and 13 allow the entire orientation of the filter plate 10 to be changed simultaneously. However, as described above, this mechanism cannot perform adjustment when the meandering direction changes for each zone.

Accordingly, in the present invention, as shown in FIG. 2, a length adjusting means is provided at a portion between the zones of the filter plate separating chain 11.
14 are provided. As shown in FIG. 3, for example, the structure of the length adjusting means 14 includes a spacing adjusting bolt 16 and a spacing adjusting nut 17 between the brackets 15 and 15 of the filter plates 10 and 10 at the end of the zone.
And attached. If the position of the gap adjusting nut 17 is changed, the gap between the filter plates 10 and 10 when the plate is opened can be adjusted, and the length adjusting means 14
2, the direction of the filter plate 10 in one zone (that is, the direction of the filter cloth running rollers 1 and 2) can be adjusted independently of the other zones as shown in FIG. As a result, it is possible to individually adjust the meandering of the filter cloths 3 in each zone. Note that when the plate is closed,
Needless to say, as shown in the lower part, the filter plates 10 can be brought into close contact with each other.

FIG. 4 shows another embodiment of the length adjusting means 14, in which a spacing adjusting rod 18 is provided between the filter plates 10 at the end of the zone.
And a pair of slide blocks 19, 20 are provided, and links 21, 22 are mounted between the brackets 15, 15 of the filter plates 10, 10 at the end of the zone and the slide blocks 19, 20. The slide block 19 is fixed to a lower end of the gap adjusting rod 18 by a nut 23, and the slide block 20 can slide freely along the gap adjusting rod 18.
However, the lower limit at which the slide block 20 can slide is determined by the flange portion 24 provided on the interval adjusting rod 18. In this case, the nut 23 allows the slide block 1
By adjusting the minimum distance between the filters 9 and 20, the distance between the filter plates 10 and 10 at the time of opening can be adjusted as shown in the upper part of FIG. When the plate is closed, the slide block 20 slides freely upward as shown in the lower part of FIG.
10 can be adhered.

The direction of the filter plate 10 in one zone can be adjusted independently of the other zones as shown in FIG. 2 also by the length adjusting means 14 in the embodiment of FIG. The meandering of the filter cloths 3, 3 can be adjusted individually.

[0012]

As described above, the filter cloth traveling type filter press of the present invention is divided into a plurality of zones, and one continuous filter cloth is provided for each zone.
The length of the sheet can be shortened, the tension required for running the filter cloth can be reduced, and the elongation of the filter cloth which causes meandering can be reduced. Further, in the present invention, since the length adjusting means is provided at a portion between the zones of the filter plate separating chain which determines the interval between the filter plates at the time of opening provided on both the left and right sides of the filter plate, the filter plate is thereby provided with The direction of the attached filter cloth running roller can be adjusted for each zone, and the meandering of the filter cloth different for each zone can be easily and reliably corrected. Therefore, according to the present invention, it is not necessary to install a conventional meandering correction device for each zone, and the manufacturing cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a plan view showing a filter plate in the embodiment of the present invention.

FIG. 3 is a front view showing an example of a length adjusting means of a filter plate separating chain.

FIG. 4 is a front view showing another example of the length adjusting means of the filter plate separating chain.

FIG. 5 is a plan view showing a filter plate in a conventional filter cloth traveling type filter press.

[Explanation of symbols]

3 filter cloth, 10 filter plate, 11 filter plate separation chain, 14 length adjusting means

Claims (1)

(57) [Claims] 1. A filter cloth traveling type filter press in which a continuous filter cloth is provided between a large number of openable and closable filter plate groups so that the filter cloth group can be run. In addition to providing a continuous filter cloth, a length adjusting means is provided at a portion between the zones of the filter plate separating chain which is provided on both sides of the filter plate and determines the interval between the filter plates at the time of opening. Filter cloth traveling type filter press.