JPS6015368B2 - Filter press stock solution supply device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a filter press of the furnace cloth running type in which a pair of furnace cloths are run vertically between adjacent furnace slopes. The present invention relates to the structure of a solution supply device that guides the solution from the solution hole in the furnace plate between a pair of furnace cloths in the attached state.

Conventionally, a filter press has a pair of furnace cloths interposed between adjacent furnace slopes, and a undiluted solution supply plywood interposed between the pair of furnace cloths.

This stock solution supply plate is provided with a through hole that communicates with the stock solution supply port of the furnace cloth, and is provided with a liquid supply path that extends downward from the through hole and is open at its lower end. Then, the undiluted solution supply plate is fixed by tightening the adjacent furnace liquids, and the undiluted solution is passed through the undiluted solution hole of the furnace liquid, the undiluted solution supply port of the furnace cloth, and then through the liquid supply path from the through-hole of the undiluted solution supply plate. The V is supplied to the furnace chamber formed between the cloths. By the way, when the above-mentioned stock solution supply plate is used, due to its structure, it is particularly difficult to clean the inside of the liquid supply path, so that the stock solution remains in the through-hole and the liquid supply path, causing a problem that the liquid supply path is blocked. was there.

Furthermore, since the raw solution supply plywood is composed of a single sheet, there is a problem in that it is difficult to repair a blocked liquid supply path. The present invention has been made to solve the above problem, and instead of using a single raw solution supply V-plate, a pair of V-plates are attached to each of a pair of furnace cloths sandwiched between adjacent furnace slopes. The protruding parts of the cotton-attached members that attach each presser block to each furnace cloth are butted against each other to form a gap between both presser blocks, and the gap is formed between the pair of furnace cloths through this gap. By supplying the undiluted solution into the furnace chamber,
It is an object of the present invention to provide a filter press stock solution supply device that can smoothly supply the stock solution into the furnace chamber and can also be easily repaired and cleaned.
Therefore, in the present invention, a washer member having a through hole is brought into contact with the opposing surfaces around each raw solution supply V port of a pair of furnace cloths sandwiched between adjacent furnace plates, and the washer member and , sandwiching the furnace cloth with a presser plate having a through hole and tightening it with a fastening member, and when attaching the furnace cloth, the protruding portions of the fastening member protruding from the opposing surfaces of each of the washer members are abutted against each other. A gap is provided between the washer members facing each other, and the undiluted solution is passed through the undiluted solution hole in the sea plate, the through hole in the holding plate, the undiluted solution supply port in the furnace cloth, and the through hole in the washer member. It is characterized in that V is supplied between the pair of furnace cloths through the gap between the sections.

EMBODIMENT OF THE INVENTION Below, this invention is concretely demonstrated based on the Example of illustration.

As shown in FIGS. 1 and 2, a filter breath equipped with a stock solution supply device 1 according to an embodiment of the present invention has a furnace cloth between adjacent furnace plates 2, 2 when the furnace plates 2, 2 are connected. Hanging rod (not shown).

) while the pair of furnace cloths 4, 4 whose upper ends are supported are run up and down, during the furnace operation, the raw solution supply device 1 is inserted from the raw solution hole 2a of the furnace plate 2 with the furnace plates 2, 2 attached vertically to each other. The stock solution is introduced between a pair of furnace cloths 4, 4 through the furnace cloth. In addition, in FIG. 2, the center furnace plate 2 is a pressing furnace plate. As shown in FIGS. 3 and 4, the brine solution supply device 1 is composed of a pair of presser blocks 5, 5, each of which has a thin annular shape that can function as a member for holding down the furnace cloth 4. It is generally composed of a washer plate 6 as a washer member, a presser plate 7, and a large number of bolts 8, . . . , 8 as fastening members.

The washer plate 6 has a circular through-hole 6a in its center in the thickness direction that communicates with the raw solution supply port 4a of the furnace cloth 4, and a large number of bolt insertion holes 6b around the through-hole 6a,...
.........6b is provided. on the other hand,
The presser plate 7 is a vertically elongated plate whose upper portion is semicircular.

A circular through hole 7a communicating with the stock solution supply port 4a of the furnace cloth 4 is provided in the upper part of the holding plate 7 in the thickness direction, and a bolt insertion hole 6 of the washer plate 6 is formed around the through hole 7a.
b'・・・・・・・・・・・・・・・・Many bolt insertion holes 7b suitable for 6b,・・・・・・・・・・・・・・・・
, 7b are provided. Then, the washer plates 6 are brought into contact around each stock solution supply port 4a on the opposing surfaces of the pair of furnace cloths 4, 4 interposed between the adjacent furnace plates 2, 2, and the washer plates 6
and the presser plate 7 sandwich the furnace cloth and tighten the bolts 8, 8, 8 from the washer plate 6 side to attach the washer plate 6 and the presser plate 7 to the furnace cloth 4, Bolt heads 8a, 8a protruding from opposing surfaces of the plates 6, 6 abut each other, and a gap 9 at a constant interval is provided between the two washer plates 6, 6. Note that 10 is a bolt 11 .・・・・・・・・・・・・・・・・11 is a backing plate attached to prevent the furnace cloth 4 from loosening, and also to prevent the backing plates 10, 10 of both presser blocks 5, 5 from loosening. By butting the heads 11a of each bolt 11 against each other, the bolts 8. of the washer plates 6, 6.・・・・・・・・・・・・
．． . . . 8 each head 8a. The gap 9 formed by the mutual butting of the furnace cloths 8a can be formed over a wider range between the furnace cloths 4, making it easier to supply the stock solution between the furnace cloths 4, 4. Further, reference numeral 12 is an auxiliary furnace cloth provided at a portion of the furnace cloth 4 where the presser flock 5 is attached, and serves to reinforce the furnace cloth 4. For example, a protrusion may be provided on the backing plate that surrounds the head of the bolt to be attached to the plate and protrudes in the plate thickness direction from the thickness of the bolt head, and the protrusion may be butted against each other. Good too. Furthermore, a washer may be used in place of the patch plate 10 to achieve the same effect. The stock solution supply device 1 configured in this way operates as follows.

When the adjacent furnace plates 2, 2 are tightened together as shown in the two furnace plates 2, 2 on the right side in FIG. The heads 8a . A gap 9 is formed between the two washer plates 6, 6 by abutting each other.

After that, the undiluted solution is passed through the undiluted solution hole 2a of the furnace plate 2 to one of the holding plates 7.
, the stock solution supply port 4a of the furnace cloth 4, and the penetration port 6a of one of the washer plates 6, and some of the stock solution flows into both the washer plates 6.
, 6 to the furnace chamber 14 formed between the pair of furnace cloths 4, 4 to carry out furnace filtration. The remaining stock solution is fed to the stock solution hole 2a of the adjacent furnace plate 2 through the through hole 6a of the other washer plate 6, the stock solution supply port 4a of the furnace cloth 4, and the through hole 7a of the other presser plate 7. On the other hand, when the furnace plates 2, 2 are opened as shown by the two furnace slopes 2, 2 on the left side in FIG.
Cleaning work is carried out while winding up 4.

At this time, the pair of furnace cloths 4, 4 are wound in different directions below the furnace plate 2, for example, by separate winding rollers, so that the distance between the pair of furnace cloths 4, 4 increases, and the bolt head Since the presser blocks 5, 5, which were butting against each other at the portions 8a, 11a, are separated as the furnace cloths 4, 4 spread, it is easy to remove the opposing surfaces of the presser blocks 5, 5 through which the stock solution has passed. Cleaning can be performed quickly and reliably, and it is possible to reliably prevent the gap 9 between the two washer plates 6, 6 from being blocked due to residual undiluted solution. Further, the bolts 8 provided on the presser blocks 5, 5, 8; 11.・
Since the position of the presser blocks 5, 5 is symmetrical with respect to the central axis in the longitudinal direction of the presser blocks 5, 5, an equal force is applied to the presser blocks 5, 5, as shown in the figure. There is no overload. Note that the present invention is not limited to the above-mentioned embodiments, and can be implemented in various other embodiments.

For example, the furnace cloths 4, 4 to which the above-mentioned presser blocks 5, 5 are attached
The furnace plates 2, 2 sandwiching the two are not limited to those of the out-of-plane undiluted liquid supply type as shown in the figure, but may be of the in-plane undiluted solution supply type having undiluted solution holes in the furnace filtration surface. In Figure 5, the furnace liquid in the center (
As shown by the furnace plates 2' and 2' on both sides, excluding the ordinary furnace plate, a type of pressing furnace plate different from the pressing furnace plate 2 shown in the center of FIG. 2 may be used. Also, instead of the bolt 8, the sixth
As shown in the figure, the fastening screw 15 may have a small rod portion 15a at one end and a threaded portion 15b at the other end. Fix the fastening screws 15 to the presser plate 7 by welding, pass the furnace cloth 4 and washer plate 6 through the threaded portions 15b protruding from corresponding sides of the presser block 5, and tighten with nuts 16.
When the nuts 16 and 16 are butted against each other, both the washer plates 6
, 6 to form a gap 9 between them. Further, as shown in FIG. 7, a shield bolt 17 is used instead of the bolt 8, and one end threaded part 17a is screwed into the threaded hole 7d of the holding plate 7, while the other end threaded part 17b is connected to the furnace cloth 4. The washer plate 6 may be passed through and vertically attached with a nut 16, and a gap 9 may be formed between the two washer plates 6 by abutting the nuts 16 against each other. Also, instead of the washer plate 6,
As shown in FIGS. 8, 9, and 10, a thin plate material 18 having a through hole 18a and similar to the presser plate 7 and having a slightly smaller size may be used. In this way, the patch plate 10 becomes unnecessary, the number of parts is reduced, and the gap 9 formed between the furnace cloths 4, 4 is reduced.
is formed over a wide range, making it easier to supply the stock solution to the furnace chamber 14 between the furnace cloths 4, 4. Further, instead of the bolt 8, a combination of a countersunk screw 19 and a nut 16 as shown in FIG. 10 may be used. A gap 9 is formed between the two plate materials 18, 18 by the butting of the nuts 16, 16. Furthermore, if the openings 6a and 7a of the washer plate 6 and the presser plate 7 are made smaller than the stock solution supply port 7a of the furnace cloth 4, the stock solution supply port 7a of the furnace cloth 4 can be
The area around a can be protected and the flow rate of the stock solution can be adjusted. Further, the through holes 6a of the washer plate 6 and the through holes 7a of the holding plate 7 are gradually made smaller from the undiluted solution supply joint side of the filter press toward the distal end thereof.
A constriction slope may be given to the feed path. Further, the washer plate does not need to be a single plate, and may be divided in the circumferential direction, and may be composed of, for example, a large number of washers or washers. Further, the washer plate is not limited to a circular shape, but may be a washer plate of any shape such as an oval shape as long as it can function as a holding material for the furnace cloth 4. Also, if the washer plate is extremely thin,
Protrusions for bolt insertion may be appropriately formed on the surface to provide strength. Furthermore, the presser plate may have any shape as long as it can produce the same effects as described above. As is clear from the above description, according to the present invention, washer members having through holes are provided on opposing surfaces around each raw solution supply V port of a pair of furnace cloths sandwiched between adjacent furnace plates. The above-mentioned fastening is made such that the washer members and a holding plate having a through hole are in contact with each other, and the above-mentioned furnace cloth is sandwiched between the fastening members, and the fastening members protrude from the opposing surfaces of the respective washer members when the above-mentioned furnace plate is tightened. A gap is provided between the opposing washer members by abutting the protruding parts of the members, and the undiluted solution is supplied to the undiluted solution hole of the furnace plate, the through hole of the presser plate, the undiluted solution supply port of the furnace cloth, and the washer member. Since the liquid is supplied between the pair of furnace cloths through the through hole and through the gap between the washer members, the pair of opposing washer members can be separated when the frame is opened, and the undiluted solution flows into both washers. It is possible to reliably prevent the liquid from remaining in the gap between the members and blocking the gap, and it is possible to smoothly supply the stock solution into the furnace chamber.
Since the distance between the furnace cloths can be widened, repair and cleaning operations can be easily performed, and the structure is also simple and assembly can be performed easily.

Further, according to the present invention, since the washer member and the presser plate are attached around the undiluted solution supply groove opening of the furnace cloth, the undiluted solution hole of the furnace plate and each through-hole of the washer member and the presser plate are reliably connected to each other and the presser plate can be firmly attached to the furnace plate. In addition, in the conventional stock solution supply plate, the thickness of the plate is thick because the liquid supply path is provided inside the plate, and therefore the plate itself is heavy and puts an excessive load on the furnace cloth.However, according to the present invention, the double washer member Since the protrusions of the opposing fastening members are butted against each other to form a gap, the washer member and presser plate attached to the furnace cloth can be made thinner and lighter than the secondary liquid supply plate described above, and the furnace cloth It is possible to prevent overload from being applied to the Furthermore, according to the present invention, there is no restriction on the liquid supply path for supplying the stock solution into the furnace chamber, and the stock solution can be supplied from the through hole of the washer member to the surrounding directions such as up, down, left and right, etc. , it is possible to increase the rate of supply of the raw solution into the furnace chamber and improve production efficiency. In addition, since conventional liquid supply joint plywood had a liquid supply path inside, it was necessary to improve the accuracy of the entire board, but according to the present invention, the mutual connection of the fastening members of the two washer members facing each other was improved. Since the gap is formed by butting, it is only necessary to increase the accuracy of the fastening member and its attachment location, and manufacturing costs can be reduced. Further, according to the present invention, since the washer member, presser plate, etc. are attached to each furnace cloth, the movement of each furnace cloth can be made smooth without being obstructed.

[Brief explanation of drawings]

Fig. 1 is an explanatory view of the main parts showing the state in which the stock solution supply device according to an embodiment of the present invention is attached to the furnace cloth, and Fig. 2 is a longitudinal cross-sectional view of the main parts of the furnace plate. The plate is a vertical cross-sectional view of the main part showing the open state of the furnace plate, the two right-hand furnace plates in the figure are longitudinal cross-sectional views of the main part showing the state of the furnace plate vertically attached, and Figure 3 shows the raw solution supply in Figure 1. A front view of the device, FIG. 4 is a vertical sectional view of the stock solution supply device of FIG. 1 attached to the furnace cloth, FIG. 5 is a sectional view of main parts showing another embodiment of FIG. 7 is a sectional view of a main part showing other embodiments of the fastening member, and FIG. 8 is a sectional view of another embodiment of the washer member. In the figure, the right side of A-A is a rear view of the stock solution supply device, FIG. 9 is a longitudinal cross-sectional view showing the state in which the stock solution supply device shown in FIG. 8 is attached to the furnace cloth, and FIG. FIG. 3 is a longitudinal cross-sectional view showing an example. 1... Raw solution supply plate, 2, 2'... Furnace plate, 4
...Tear cloth, 6...Washer plate, 7...
Holding plate, 8, 1 1... Bolt, 9... Gap, 14
... Furnace chamber, 15 ... Vertical screw, 16 ... Nut, 17 ... Shield bolt 18 ... Plate material, 19 ... Flat head screw. Figure 6 Figure 7 Figure 2 Figure 3 Figure 1 Figure 4 Figure 8 Figure 9 Figure 10 Figure 5

Claims (1)

[Claims] 1. A pair of filter cloths sandwiched between adjacent filtrate has a washer plate with a through hole on the opposing sides around each stock solution supply port, and a presser plate with a through hole on the opposite side facing the filtrate. The filter cloth is sandwiched between the washer plate and the holding plate, and a plurality of tightening members are attached to the holding plate in pairs from the washer plate side at mutually symmetrical positions around the through hole, and each tightening member is attached to the holding plate from the washer plate side. When the frame is closed by making the head of the member protrude inside the washer plate and tightening the filter cloth between the filtrate, the top surface of the head of the fastening member that protrudes inward at a mutually symmetrical position of each washer plate. The undiluted solution is passed through the undiluted solution hole of the filter plate and the through-hole of the presser plate by making a gap at a constant interval between the pair of opposing washer plates by butting them against the top surfaces of the heads of the opposing fastening members of the opposing washer plates. A stock solution supply device for a filter press, characterized in that the stock solution is supplied between a pair of filter cloths through the stock solution supply port of the filter cloth and the through hole of the washer plate, and further through the gap between the washer plates.