JPS5943206B2 - Filter press stock solution supply plate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a stock solution supply plate for a filter press.

Conventionally, filter presses generally have a pair of furnace cloths interposed between adjacent door plates, and a stock solution supply plate is arranged to sandwich the pair of furnace cloths, and the adjacent door plates are tightened. The stock solution supply plate is fixed with a holder, and the stock solution is allowed to flow from the stock solution hole in the door plate to the communication opening for stock solution supply in the stock solution supply plate through the punched opening formed in each furnace cloth, and further downward from the communication opening. The stock solution is made to flow through the communicating stock solution supply hole and is supplied to the furnace chamber formed between the furnace cloths.

By the way, the stock solution supply plate is fixed to the furnace cloth by gluing, sewing, bolting, etc., so that it does not fall off even when the furnace cloth is run during cleaning of the furnace cloth.

- However, the installation work for fixing the stock solution supply plate to the furnace cloth is complicated, and the structure also becomes more complicated, such as bolts and bolt mounting holes, etc., being required.

Furthermore, if the stock solution supply plate is fixed to the furnace cloth as described above, it is difficult to remove it when performing repair work or replacing the furnace cloth, and it is difficult to remove the stock solution supply plate from the furnace cloth when cleaning the furnace cloth. Unless removed, there was a problem in that it was impossible to clean the furnace liquid accumulated in the concentrate supply plate and the lachrymal fluid accumulated around the concentrate supply plate and between the furnace cloth and the concentrate supply plate.

In addition, conventionally, the entire area around the solution hole in the door plate was sealed by the solution supply plate and the oven plate, but since the solution supply plate is interposed between the oven plates, the number of sealing points increases, and it is not always possible to ensure a secure seal. There were also drawbacks such as the inability to

- The present invention has been made in view of the above problems, and has a simple structure, does not allow tear fluid to accumulate inside, can be easily attached to and detached from the furnace cloth, and can be reliably installed in the specified position. The object of the present invention is to provide a filter-less stock solution supply plate that can be fixed in position and more reliably seal the area around the stock solution hole in the furnace plate.

Therefore, the stock solution supply plate of the filter press according to the present invention is interposed between a pair of cloths arranged between the door plates, and the circular arc portion formed at the top of each plate material connected to each other by a connecting member is connected to the furnace. It is characterized in that the fabric is held between furnace plates along the lower arc of the opening for distribution of the undiluted solution, and the undiluted solution is supplied into the open chamber between the two door panels through the gap formed between the two plates by the connecting member. It is said that

The present invention will be specifically described below based on illustrated embodiments.

As shown in FIGS. 1 and 2, the stock solution supply plate 1 is roughly composed of a pair of planarly symmetrical plates 2, 2a, 2b and a connecting member, such as a connecting rod 3.

The plate material 2 is a relatively thin annular member with an arcuate portion 4 formed on the upper part, and the arcuate portion 4 is a punched portion for distributing the undiluted solution formed in the furnace cloth 5 so as to communicate with the undiluted solution hole in the furnace plate. It is curved along the lower arc of the opening 6.

On the other hand, two connecting rods 3 are provided at each end of the plate material 2 in the width direction.
They are fixed in place by appropriate means such as welding to form a gap 15 between the two plates.

From the opening 6 of the furnace cloth 5, the double-end arc portions 4, 4 of the plate material 2
A portion of the stock solution flowing through the top of the gap 15
It is supplied through the furnace cloth into the furnace chamber 16 formed between the furnace cloths.

Next, the case where the stock solution supply plate 1 is attached to the furnace cloth 5 will be explained based on FIG. 3.

The stock solution supply plate 1 is attached to a pair of furnace cloths 5, 5, on which the stock solution supply plate 1 is interposed, and a string member 8. ....

It is suspended at 8.

The string-like member 8 has one end fixed to the furnace cloth 5 by sewing or gluing through the cloth 7, and the other end is detachably attached to the cloth 7.

Then, there are four connecting rods that connect the two plates.3. ...,
3. Two connecting rods located above 3. ..., 3, there are cloths 7 on both sides of the openings 6 and 6 of the furnace cloths 5 and 5, respectively.
．． . . , 7 is sewn to a string-like member 8. .

On the other hand, for the connecting rods 3, 3 located below, cloths 7.・
. . , a string-like member 8 sewn with 1. .

A pair of furnace cloths 5, 5 with the stock solution supply plate 1 suspended between them.
are interposed between the furnace plates 9 and 9, as shown in FIGS. 4a and 4b.

The furnace plate 9 has a stock solution hole 12 formed by a packing member 18 such as rubber on the outer upper side of the laminar surface 11, and a recess 10 for fitting the stock solution supply plate below the stock solution hole 12.

Therefore, when the furnace plate 9 is tightened, the stock solution supply plate 1 and the furnace cloth 5 fit into the recess 10 and the stock solution hole 12
Approximately the lower half of the container is sealed.

Now, opening and tightening of the furnace plate 9 are performed as follows.

When the furnace plate 9 is tightened as shown in FIG. 4 from the open state of the furnace plate 9 shown in FIG. Packing member 1 to be formed
8 closely contacts and seals the packing member 18 forming the stock solution hole 12 of the other furnace plate 9, and approximately the lower half of the stock solution hole 12 is connected to the stock solution supply plate 1 suspended from the furnace cloths 5, 5. The undiluted solution supply plate 1 and the packing members 18, 18 are fitted into the recesses 10, 10 of the oven plates 9, 9, respectively, so that the arc portions 4°4 of are brought into close contact and sealed to prevent the undiluted solution from entering between the furnace cloth 5 and the furnace plate 9.

The undiluted solution flowing through the undiluted solution hole 12 of the furnace plate 9 passes over the circular arc portion 4 of the undiluted solution supply plate 1 through the opening 6 of the furnace cloth, and passes through the gap 15 formed between the two plates into the furnace cloth 5, 5 into the furnace chamber 16 reliably and smoothly.

Usually, the furnace plates 9 are opened to recover the furnace liquid after filtration.

This furnace liquid recovery is carried out by winding up the furnace cloth 5 onto the lower winding roller 13 using the furnace cloth traveling device, and at the same time, the cleaning nozzle 1
This is done by spraying cleaning water from 4 to clean the furnace cloth 5.

At this time, as shown in FIG. 5, as the furnace cloth 5 is wound up, the stock solution supply plate 1 is moved to the string-like member 8. ....

Since the furnace cloth 5 that was in contact with the undiluted solution supply plate 1 is separated from the furnace cloth 5 in the suspended state at The mud that has entered can be easily recovered.

Furthermore, as shown in FIGS. 6 and 7, instead of the pair of furnace cloths 5, 5 having the punched openings 6.6, the punched openings 1.
The above opening 19a is formed by superposing two furnace cloths 19 having 9a.
The periphery is sewn, and a cloth 20 of the same quality as the furnace cloth 19 is attached to the opening 1.
It is also possible to use a continuous oven cloth 17 which is sewn on both sides of the periphery of the cylindrical sewn portion 19b and has an opening 21 at the bottom of the cylindrical sewn portion 19b.

When using this continuous furnace cloth 17, the raw solution supply plate 1 is attached to the furnace cloth 5 using string-like members 8, 8 so that the circular arc portions 4, 4 of the raw solution supply plate 1 are aligned with the lower arc of the sewn portion 19b. be hung on.

Therefore, the stock solution flows through the sewn portion 19b and passes through the gap 15 of the stock solution supply plate 1 from the opening 21 formed at the bottom of the sewn portion 19b into the P chamber 16 formed between the furnace cloths 19, 19. flows into.

When the continuous furnace cloth 17 is used, the displacement of the stock solution supply plate 1 with respect to the continuous furnace cloth 17 is reduced, and the sealing performance around the stock solution hole of the furnace plate is further improved.

In this embodiment, the stock solution supply plate is interposed between the furnace cloth and suspended, so that no protrusion protrudes from the side surface of the furnace cloth.

Therefore, when the furnace cloth is running, the stock solution supply plate may come into contact with the filtration surface of the door plate, causing damage to the filtration surface, causing failure of the furnace cloth hanging device, or causing the furnace cloth to move up and down. The furnace cloth can run smoothly without being hindered.

In addition, in the past, there were cases where a backing plate for fixing the stock solution supply plate was protruded between the furnace cloth and the furnace plate, but in this case, when the furnace cloth was running, the backing plate There were problems such as contact with the filtration surface of the furnace plate or other holes, damaging the filtration surface.

Although the configuration and operation of the device according to the illustrated embodiment are as described above, the present invention is not limited to this embodiment.
It can be implemented in various other ways.

For example, the shape of the plate material 2 of the stock solution supply plate 1 is not limited to an annular shape, but may be a square shape.

Also, 4 connecting rods 3. ..., string-like member 8 for all 3,
..., 8 may be wound around only the connecting rods 3, 3 located above.

In this case, when the oven cloth 5 is wound up on the take-up roller 13 during cleaning of the oven plate 9, the oven plate 5 and the stock solution supply plate 1 are considerably opened, and the collection of lachrymal fluid becomes easier.

Further, instead of the connecting rod 3, although not specifically shown, a double-threaded member may be used, with a right-handed thread on one side and a left-handed thread on the other side.

The eye-side screw member is screwed into each plate to connect both plates.

Then, both screw members are rotated in one direction to move the two plates closer to each other, and both screw members are rotated in the opposite direction to move the plates to separate from each other, thereby adjusting the gap between the plates. Accordingly, the adhesion force of the door plate to the area around the solution hole may be adjusted.

In addition, by using the above-mentioned side threaded member, especially when fiber waste accumulates in the gap between the stock solution supply plates in a filter press that processes stock solutions with a large amount of fibers, the stock solution can be easily removed by rotating the side threaded member. The supply plate can be separated and cleaned.

In addition, since the stock solution supply path to the p chamber of the stock solution supply plate is formed in the gap between the two plate materials, it is generally unlikely that fiber waste will accumulate.

Further, the connecting rod may be formed of a conical protrusion having a husband end face facing the opposing surfaces of the pair of plate members, and the end face being a plane approximately parallel to the plate members.

Therefore, when the furnace plate is tightened, the opposing end faces of the projections come into contact with each other, thereby forming a gap between the two plate members.

In this way, the structure of the stock solution supply plate becomes simpler, and since the two plates are separated when the furnace plate is opened, tear fluid does not accumulate in the gap and cleaning is facilitated.

Furthermore, the furnace plate is not limited to the one in which the recess for fitting the stock solution supply plate is formed only below the stock solution hole, but may also be a furnace plate in which four parts are formed around the stock solution hole in the upper part as well.

As described in detail in the above embodiment, the stock solution supply plate of the filter press according to the present invention is composed of a pair of plates having an arcuate portion at the top and a connecting member that connects the plates, so that the structure is very simple. This prevents furnace fluid from accumulating inside, and it is easy to carry out repair work.

In addition, an arc section along the lower arc of the opening of the furnace cloth is provided at the top of each plate to seal the approximate lower part around the raw solution hole of the door plate that communicates with the opening of the furnace cloth. The type of furnace plate that is supplied from the outside provides a sufficient seal, and the sealing area with the stock solution supply plate is compared to the conventional method, which seals the entire circumference of the stock solution hole by sandwiching the stock solution supply plate at the top of the stock solution hole. Therefore, at least the sealing performance is improved, and the weight of the stock solution supply plate can be further reduced.

In addition, when the connecting member is made of double-threaded screws, the gap between the two plate members of the stock solution supply plate can be adjusted by the side screws, and the adhesion force of the door plate to the area around the stock solution hole can be adjusted.

Furthermore, if the connecting member is suspended from the furnace cloth using a string-like member or the like, it is very easy to attach and remove the stock solution supply plate from the furnace cloth, and it can be reliably positioned at a predetermined position.
Furthermore, the furnace cloth in the portion that comes into contact with the stock solution supply plate can be easily cleaned.

[Brief explanation of the drawing]

Figures 1, 2, and 3 are a front view and a plan view showing a stock solution supply plate of a filter press according to an embodiment of the present invention, and a sectional view showing a state in which it is attached to a furnace plate and furnace cloth, and Figure 4 a2b is a FIG. 5 is a vertical cross-sectional view of the main part showing the furnace plate in an open state and a main part vertical cross-sectional view showing the furnace plate in the tightened state, FIG. FIG. 7 is a front view and a longitudinal cross-sectional view, respectively, showing a hanging method using continuous sewage cloth. 1... Stock solution supply plate, 2... Board material, 3.
...Connecting rod, 4...Circular part, 5...
... Furnace cloth, 9 ... Furnace plate, 15 ... Gap, 17 ... Continuous furnace cloth.

Claims (1)

[Scope of Claims] 1. It is interposed between adjacent door panels and between a pair of furnace cloths, and consists of a pair of plates each having an arcuate portion at the upper part, and the arcuate portion of each plate is defined by each of the above-mentioned components. It is characterized in that it has the same shape as the lower arcuate portion of the generally circular opening for distribution of the stock solution in the furnace cloth, and that the above-mentioned pair of plates are connected by a connecting member to form a gap for the stock solution supply path between the two plates. Filter press stock solution supply plate. 2. The connecting member is a double-sided screw, a screw hole is provided in a predetermined position of each of the plate materials, the two plate materials are connected by screwing in the screw, and the gap between the two plate materials is adjusted by rotating the screws. Claim 1 characterized in that it is possible to
The stock solution supply plate for the filter press described in section.