JPS6232571Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a cloth traveling type single filter press equipped with a squeezing mechanism, and more particularly to a supply device for supplying a stock solution to a chamber formed between a pair of cloths.

Conventionally, an apparatus in which a plate with a diaphragm is provided in a cloth running type filter press, and after the stock solution is press-fed, the diaphragm performs compression dehydration has the advantage that a highly dehydrated cake can be obtained.

However, when the diaphragm is expanded by supplying high pressure fluid to the back of the diaphragm,
As shown in FIG. 5, the diaphragm 5 side cloth 3a
The water is inserted into the liquid supply port 12 which is partially extended at the lower part of the liquid supply plate 4 and opens toward the chamber 8, and is pressed against the corner of the liquid supply plate 4, and is compressed and dehydrated by the diaphragm. As you repeat the steps, the cloth 3a
However, there was a drawback that the diaphragm 5 could be locally damaged. Therefore, this invention proposes a device that can eliminate the above-mentioned drawbacks.

Next, the embodiment of the present invention will be described with reference to Figs.
Referring to the figure, the plates 1 are arranged alternately.
In this device, a liquid supply plate 4 is provided between a pair of cloths 3a, 3b which are supported so as to be able to run in the vertical direction between a plate 2 with a diaphragm attached, and which squeezes and dehydrates with a diaphragm 5. A liquid supply hole 6 is provided penetrating the liquid supply plate 4 in the front-to-rear direction, and a liquid supply port 7 which branches downward from the liquid supply hole 6 and opens onto the plate 1 side. At the top dead center of the cloth running, a recess 9 which communicates with a chamber 8 is provided on the surface of the plate 1 opposite the liquid supply port 7 of the liquid supply plate 4.

To explain the liquid supply plate 4 in more detail, the liquid supply plate 4 is fixed to a pair of cloths 3a and 3b, or is fixed to one of the cloths, and the liquid supply plate 4 is The opening ratio of the stock solution passage hole 6 and the liquid supply port 7 is made almost equal. Further, an inclined portion 10 is provided at the lower portion of the liquid supply plate 4 on the diaphragm 5 side.
In addition, if it is desired to give strength to the liquid supply plate 4, a reinforcing rib 11 may be provided between the stock solution passage hole 6 and the liquid supply port 7.

In addition, plate 1 and plate 2 with diaphragm have
Stock solution passages 13a and 13b are respectively provided so as to communicate with the stock solution passage hole 6 of the liquid supply plate 4 at the top dead center of cloth travel. In addition, the plate with diaphragm 2 is
It is composed of a diaphragm 5 and a core plate 14,
The diaphragm 5 can be expanded by supplying high pressure fluid to the back surface of the diaphragm 5.

Next, the supporting device for the cloths 3a, 3b will be described in detail. The upper ends of the pair of cloths 3a, 3b are attached to one bar 15, which is connected to a pulling means (not shown), At the lower end, the cloth is wrapped around guide rollers 16, 16 that are fixed to the lower positions of the front and rear plates 1 and the diaphragm plate 2, and is attached to separate bars 17, 17, respectively. 3a and 3b are connected to lowering means (not shown).

The cloths 3a, 3b are run under the guide roller 16 after peeling off the cake.
and a cleaning device 18 that can clean the liquid supply plate 4.
is provided.

The invention of the present invention is configured as described above, and the plates 1 and 2 are closed to inject the raw liquid, and the diaphragm 5 is expanded to compress and dehydrate the cake. In this device, the liquid supply port 7 of the liquid supply plate 4 does not open toward the chamber 8 as in the conventional device, but opens toward the plate 1, so that when the diaphragm 5 is expanded, ,
Even if the diaphragm 5 and the cloth 3a are stretched greatly, they will not get wedged in the liquid supply port 7 and will not be squeezed by the corners. That is, even if the operation of expanding the diaphragm 5 is repeated, the diaphragm and the cloth will not be partially damaged as in the conventional case. next,
After pressing and dewatering, the plates 1 and 2 are opened, the cloths 3a and 3b are moved downward by the drive device to peel off the cake, and the cloths 3a and 3b and the liquid supply plate 4 are washed.
The cloths 3a, 3b can be returned upward and prepared for the next over-process.

In addition, if the opening ratio of the stock solution passage hole 6 and the supply port 7 of the liquid supply plate 4 is made almost equal, even if the stock solution contains many fibers and large particle size solids, it will be possible to The liquid supply port is not narrow, and there is no fear that the liquid supply plate 4 is clogged with the stock liquid. Even if it becomes clogged, if you clean the liquid supply plate 4 by running a cloth downward, the liquid supply port 7 is wide, so the clogging fibers and solids can be completely washed away. There is no problem with the next injection of raw liquid, and no differential pressure is generated between each chamber. Moreover, a uniform cake can be formed in each chamber.

In addition, since the liquid supply port 7 of the liquid supply plate 4 is open in the direction of the plate 1, this inclined part 10 can be made large, and even if the diaphragm 5 is bulged, it will not work like a conventional liquid supply plate. Since there are no corners, the diaphragm 5 and the cloth 3a will not be damaged in any particular portion in this respect as well.

As described above, in the present invention, by opening the liquid supply port of the liquid supply plate in the direction of the plate, damage to the diaphragm and cloth can be prevented and the service life can be maintained for a long time. Moreover, it is economical in terms of time and cost for repair and replacement.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view showing the open state of a filter press using the stock solution supply device of the present invention;
Figure 2 is a partially cutaway side view showing the closed plate state.
FIG. 3 is a partially cutaway side view showing the state in which the cloth is running downward, FIG. 4 is a front view showing an embodiment of the liquid supply plate according to the present invention, and FIG. 5 is a conventional undiluted solution supply. It is a partially cutaway side view showing a closed state of a filter press using the device. Explanation of symbols, 1...Plate, 2...Plate with diaphragm, 3a, 3b...Cloth, 4...Liquid supply plate, 5...
... diaphragm, 6 ... stock solution passage hole, 7 ... liquid supply port, 8 ... chamber, 9 ... recess in plate.

Claims (1)

[Claims for Utility Model Registration] (1) A liquid supply plate 4 is provided between a pair of cloths 3a and 3b which are supported so as to be able to run in the vertical direction between the plates 1 and the plates with diaphragms 2 which are arranged alternately. ,
In an apparatus for compressing and dewatering using a diaphragm 5, a stock solution passage hole 6 penetrating the liquid supply plate 4 in the front-rear direction, and a stock solution passage hole 6 branching downward from the stock solution passage hole 6,
A liquid supply port 7 opened on the plate 1 side is provided, and
A stock solution supply device for a filter press, characterized in that a recess 9 communicating with a chamber 8 is provided on the surface of the plate 1, facing the liquid supply port 7 of the liquid supply plate 4 at the top dead center of cloth running. (2) A stock solution supply device for a filter press, characterized in that the opening ratio of the stock solution passage hole 6 of the liquid supply plate 4 and the liquid supply port 7 is approximately equal. (3) A stock solution supply device for a filter press, characterized in that an inclined portion 10 is provided at the lower part of the liquid supply plate 4 on the diaphragm 5 side. (4) A stock solution supply device for a filter press, characterized in that a reinforcing rib 11 is provided between the stock solution passage hole 6 and the liquid supply port 7 of the liquid supply plate 4.