JPS6130799Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention provides a dewatering section configured to allow two endless band-shaped filter cloths to pass through a group of rollers in a stacked state, and a biasing mechanism for tensioning each of the filter cloths separately. Regarding dehydrators equipped with tension rollers,
The purpose is to construct a filter cloth tensioning device at low cost through simple modification, and thereby to make the entire dehydrator more compact.

Next, embodiments of the present invention will be described in detail based on illustrative drawings.

A large number of rollers 2 are installed in a zigzag pattern in the lower part of the gravity dehydration area 1, which has a large number of small holes in its upper surface, and a pair of upper and lower filter cloth driving rollers 3, 3 are installed at one end of the gravity desorption area 1. and filter cloth tensioning rollers 4, 4 are provided on the other end side, and furthermore, a cake thickness adjustment roller 5 and a filter cloth meandering correction roller 6 are provided, and two rollers are provided across these roller groups. Endless band-shaped filter cloths 7, 7 are wound in a state in which they are overlapped with each other and pass through the group of rollers 2 arranged in a zigzag manner, and the object to be processed is placed near the upper driving roller 3. Agitation supply device 8
and a dewatered cake recovery tank 10 below the lower driving roller 3, respectively, and a gravity dewatering section A using the gravity dewatering zone 1 part.
The material to be processed is dehydrated by the dewatering section B which is subjected to clamping pressure shearing of the filter cloths 7, 7 passing through a group of rollers 2 arranged in a zigzag arrangement, and the dehydrated cake is transferred to the collection tank 1.
The dehydrator is configured to take out the water at 0.

Between the bearing 11 on which the filter cloth tension roller 4 is mounted and the dehydrator body 12, a tension spring 13 and a screw-type adjustment mechanism 1 for adjusting the biasing force of the tension spring 13 are provided.
4 are provided so that the initial biasing force can be freely changed and set for each of the filter cloths 7.

Separately from the filter cloth tensioning roller 4, a filter cloth tensioning device 15 is provided near the roller 4 and applying tension to the area where the two filter cloths 7, 7 overlap.

To configure the filter cloth tensioning device 15, as shown in FIGS. 3 and 4, a pair of guide members 16, 16 extending in the filter cloth tensioning direction are connected to the left and right frames 1.
7 and 17, and the guide 1
Support members 18, 18 movable along 6, 16
A filter cloth tensioning roller 19 is installed across the roller 19, and a pinion 21 is attached to both ends of the rotating shaft 20 of the roller 19.
A rack 22 that engages with the filter cloth is provided on the left and right frames 17, 17 along the filter cloth tensioning direction, and a cylinder 22 is provided on each of the support members 18, 18.
3 and 23 are interlocked and connected, and then the rack 22
The two filter cloths 7, 7 are simultaneously tensioned by the cylinders 23, 23 while the left and right movement amount of the roller 19 is synchronized by the pinion 21.

Incidentally, instead of the cylinder 23, a motor may be used to move the roller 19 in the tensioning direction, and this is referred to as a filter cloth tensioning drive device 23.
In addition, as the dewatering section B, there is a
It can be modified to a structure in which the filter cloths 7, 7 are passed through in a straight line.

In summary, the present invention provides the above-mentioned dehydrator with a filter cloth tensioning drive device 23 near the lower side of the tensioning roller 4 and at a location where the two filter cloths 7, 7 are overlapped. It is characterized by being provided with a tension roller 19.

That is, conventionally, the tension roller 4 with a biasing mechanism
Apart from this, a filter cloth driving tension roller 19 is provided for each of the two filter cloths 7, 7, which has the disadvantage that not only the equipment cost is high but also the entire dewatering equipment becomes large.

However, as in the present invention, by applying the tensioning roller 19 to the two stacked filter cloths 7, 7, one set of filter cloth tensioning equipment can be omitted, and of course, the filter cloth tensioning drive device can be omitted. 23, but since the tension roller 19 is placed near the lower side of the tension roller 4, which can apply a large tension force with the lightest operating force, the power increase amount By combining this fact with the fact that only one set of tensioning equipment is required, the initial cost of the entire tensioning equipment can be significantly reduced, and the entire dewatering equipment can be downsized. It became like that.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the dehydrator according to the present invention, in which FIG. 1 is a schematic longitudinal sectional view, FIG. 2 is a side view of a tensioning roller with an urging mechanism, and FIG. 3 is a sectional view of the tensioning roller. FIG. 4 is a plan view of the tensioning device. 2...Roller, 3...Roller for driving filter cloth, 4...
... Tensioning roller with biasing mechanism, 7... Endless band-shaped filter cloth, 19... Tensioning roller, 23... Filter cloth tensioning drive device, B... Dewatering section.

Claims (1)

[Claims for Utility Model Registration] A dewatering section B configured to pass a group of rollers 2... with two endless band-shaped filter cloths 7, 7 stacked on top of each other.
and tensioning rollers 4, 4 with an urging mechanism for tensioning the filter cloths 7, 7 separately.
The dehydrator is equipped with a tensioning roller 4.
A dehydrator characterized in that a tensioning roller 19 equipped with a filter cloth tensioning drive device 23 is provided near the lower side of the filter cloth and at a location where the two filter cloths 7, 7 are overlapped. The utility model registered in claim 1 is characterized in that a filter cloth driving roller 3 is provided near the lower side of the dewatering section B, and the tensioning roller 4 with an urging mechanism is provided near the upper side. Dehydrator as described.