JPS6015369B2 - Filter press stock solution supply device - Google Patents

Description

Detailed Description of the Invention Technical Field The present invention relates to a cloth-traveling type filter press in which a pair of furnace cloths are run vertically between adjacent furnace slopes, and more specifically, to This invention relates to the structure of a undiluted solution supplying device for introducing undiluted solution from a undiluted solution hole in a furnace plate between a pair of furnace cloths in a diluted state.

2. Description of the Related Art Conventionally, a filter press has a pair of furnace cloths interposed between adjacent furnace slopes, and a stock solution supply plate interposed between the pair of furnace cloths.

This stock solution supply plywood is provided with a through hole that connects to the stock solution supply port of the furnace fabric in a single sheet, and a liquid supply path that extends downward from the through hole and is open at the lower end. . Then, tighten the adjacent furnace plates to fix the stock solution supply plate,
The stock solution is supplied to the furnace chamber formed between the furnace cloths through the stock solution holes in the furnace plate, the stock solution supply port on the furnace cloth, and through the liquid supply path from the through hole of the stock solution supply plate. By the way, when the above-mentioned stock solution supply board is used, the solution supply path is provided inside the stock solution supply plywood, so even if the solution remains in the solution supply path, it cannot be completely cleaned. There was a problem that the liquid supply path was blocked.

Furthermore, since the stock solution supply plate is composed of a single plate, there is a problem in that it is difficult to repair a blocked solution supply path.
OBJECTS OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to make it possible to easily clean the remaining undiluted solution and to smoothly supply the undiluted solution into the furnace chamber formed between a pair of furnace cloths. It is an object of the present invention to provide a filter press stock solution supply device that can be supplied with a stock solution and that can be easily repaired.

Structure and operation of the invention The structure and operation of the present invention is such that washer members each having a through hole are brought into contact with opposing surfaces of a pair of furnace cloths sandwiched between adjacent furnace plates around each undiluted solution supply port. , the furnace cloth is sandwiched between the washer member and a holding plate having a through hole, and the fastening member is tightened so that the fastening member protrudes from the opposing surface of each of the washer members when the furnace plate is tightened; A gap is provided between the opposing washer members by abutting their parts against opposing surfaces of the opposing washer 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 It is characterized in that it is supplied between the pair of furnace cloths through the through hole of the washer member and further through the gap between the washer parts.

Effects of the Invention According to the present invention, with the above structure, the opposing washer members can be separated when the furnace plate is opened, and the undiluted solution remaining between both the washer members can be easily cleaned. It is possible to reliably prevent the gap between the two washer members from clogging, and the raw solution can be smoothly supplied into the furnace chamber formed between the pair of furnace cloths.In addition, it is easy to repair, and the structure is also simple. It can be made simple and easy to assemble.

In addition, since the protrusion of the fastening member is butted against the opposing surfaces of the opposing washer members, the protrusion of the fastening member can be stably and reliably butted, and a gap can be reliably provided between both washer members. be able to. Further, according to the present invention, since the washer member and the presser plate are attached around the raw solution supply port of the furnace cloth, it is ensured that the raw solution hole of the furnace plate, the washer part village, and each through-hole of the presser plate are connected to each other through the lotus and the presser plate. can be firmly attached to the furnace plate. In addition, in the case of liquid supply plywood used in secondary vessels, the thickness of the plate is thick because the liquid supply path is provided inside the slope, and therefore the plate itself is heavy and puts an excessive load on the furnace cloth, but according to the present invention, Since a gap was formed by abutting the protruding part of the fastening member provided on one of the washer members against the opposing surface of the other washer member, the washer member and the presser plate to be attached to the furnace cloth were prepared using the above-mentioned conventional undiluted solution. It can be made thinner and lighter than the supply plate, and can prevent overload from being applied to the furnace cloth. Furthermore, according to the present invention, there is no restriction on the liquid supply path for supplying the undiluted solution into the furnace chamber, and the undiluted solution can be supplied from the through hole of the washer member in any direction, such as up, down, left, or right around the washer member. , it is possible to increase the rate of supply of the raw solution into the furnace chamber and improve production efficiency. In addition, in the conventional liquid supply plywood, a liquid supply path was provided inside the board, so it was necessary to improve the accuracy of the entire board. However, according to the present invention, the protrusion of the fastening member of the washer member is Since a gap was formed by abutting the opposing surfaces of the washer members, it was only necessary to improve the accuracy of the protrusion and the abutting portion of the protrusion.
Manufacturing costs can be reduced. Further, according to the present invention, since the washer member and the presser plate are attached to each furnace cloth, the movement of each furnace cloth can be made smooth without being obstructed. EXAMPLES Below, the present invention will be specifically explained based on illustrated examples.

As shown in FIGS. 1, 2, 3, and 4, the filter press equipped with the undiluted solution supply combination device 1 according to the embodiment of the present invention is adjacent to each other when the pressing furnace plate 2 and the ordinary furnace plate 2' are connected. A kiln cloth hanging twill (not shown) is installed between the pressing kiln plate 2 and the ordinary kiln plate 2'.

), the pair of furnace cloths 4, 4 whose upper ends are supported are run up and down, while during the furnace operation, the raw solution holes 2a, The stock solution is introduced from 2'a through the stock solution supply device 1 between a pair of furnace cloths 4, 4. The stock solution supply device 1 includes a washer plate 6 and a press plate 7 as washer members that can function as a press member for the furnace cloth 4, and a large number of bolts 8 as fastening members.
・・・・・・・・・・・・・・・It is roughly composed of 8.

The washer plate 6 is a vertically elongated plate with a semicircular upper part, and a circular through hole 6a suitable for the undiluted solution supply groove 4a of the furnace cloth 4 is provided in the center in the thickness direction. At the same time, a large number of bolt mounting holes 6b, . . . are provided around the through hole 6a.
6b is provided. On the other hand, the presser plate 7 is a plate material that is larger than the washer plate 6 and has a similar shape to the washer plate 6.

A circular through-hole 7a that fits 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 bolt attachment holes 6 of the washer plate 6 are provided around the through-hole 7a.
A large number of bolt mounting holes 7b suitable for b, 6b, 7b, 6b, 7b, 6b, 7b, 6b,
, 7b are provided. Note that washer plates 6, 6 and presser plates 7, which are attached to opposing furnace cloths 4, 4, respectively, as described later,
7 each bolt mounting hole 6b. ……………, 6b; 7b,・
7b are provided offset from each other as shown in Figures 1 and 2, so that the heads 8a of the bolts 8 inserted into each bolt mounting hole do not butt each other. That's what I do. Then, the washer plates 6 are brought into contact with each of the raw solution supply ports 4a on the opposing surfaces of the pair of furnace cloths 4, 4 interposed between the adjacent furnace plates 2, 2'. and the holding plate 7 sandwich the furnace cloth 4 from the washer plate 6 side.
........., 8 to attach the washer plate 6 and presser plate 7 to the furnace cloth 4.

In this state, the head 8a of each bolt 8 is facing the washer plate 6.
The two washer plates 6 and 6 are directly abutted against the opposing surfaces of the washer plates 6 and 6 to form a gap 9 at a constant interval. Note that the bolts 8 provided at the lower part of each washer plate 6 are fixed by fixing the furnace cloth 4 with the washer plate 6 and the holding plate 7, so that the bolts 8 can be attached to the furnace cloth 4.
2' can be positioned more reliably, and in the same way as the bolts 8, . The opposing surfaces of the opposing washer plates 6 are abutted to form a gap 9 in a wider range between the furnace cloths 4, 4, making it easier to supply the undiluted solution between the furnace cloths 4, 4.

The stock solution supply device 1 configured in this way operates as follows.

In FIG. 4, when adjacent oven plates 2', 2 are attached vertically to each other as shown by the two oven plates 2', 2 on the right side, one of the presser plates 7
is pressed against the packing part 13 forming the stock solution holes 2'a, 2a of the furnace plates 2', 2, and the head 8a of each bolt 8 is pressed.
A gap 9 is formed between the two washer plates 6 by abutting them against the opposing surfaces of the opposing washer plates 6.

Thereafter, the stock solution is made to flow, for example, from the stock solution hole 2a of the furnace plate 2 into the through-hole 7a of one of the presser plates 7, the stock solution supply port 4a of the furnace cloth 4, and the through-hole 6a of one of the washer plates 6, and some of the stock solution is is fed into the furnace chamber 14 formed between the pair of furnace cloths 4, 4 through the gap 9 between the two washer plates 6, 6, and subjected to furnace filtration. The remaining stock solution is passed through the through hole 6a of the other washer plate 6 and the stock solution supply port 4 of the furnace cloth 4.
a and the adjacent furnace plate 2 from the through hole 73 of the other holding plate 7
' is supplied to the stock solution hole 2'a. On the other hand, when the furnace plates 2 and 2' are connected to each other as shown by the two furnace plates 2 and 2' on the left in FIG. Cleaning work is carried out while winding up 4 and 4. At this time, the pair of furnace cloths 4, 4 are wound in different directions below the furnace plates 2', 2, for example, by separate winding rollers, thereby widening the gap between the pair of furnace cloths 4, 4. , the distance between the two washer plates 6, 6, where each bolt head 8a was butting against the opposing surfaces of the opposing washer plates 6, widens as the furnace cloths 4, 4 spread, so that the two washer plates 6, through which the undiluted solution circulated, expand. , 6 can be easily and reliably cleaned.
It is possible to reliably prevent the gap 9 from being blocked due to residual stock solution. Also, the positions of the bolts 8, . Since they are symmetrical with respect to the central axis in the longitudinal direction, equal force is applied to each washer plate 6 and each presser plate 7, and no overload is applied.
Note that the present invention is not limited to the above embodiments,
It can be implemented in various other ways.

For example, the furnace plates 2, 2 sandwiching the furnace cloths 4, 4 to which the washer plates 6, 6 and the presser plates 7, 7 are attached are not limited to the furnace plate of the undiluted liquid supply type outside the furnace filtration plane as shown in the figure; An in-plane filtration-type undiluted solution supply type furnace plate having undiluted solution holes in the plane may also be used. Further, the fastening member is not limited to only the bolt 8, and the fastening member may be composed of the bolt 5 and the washer 20.

That is, as shown in FIGS. 5, 6, and 7, a washer plate 6' and a presser plate 7' having substantially the same shape as in the previous embodiment are brought into contact around the stock solution supply port 4a of the furnace cloth 4 in the same manner as before. , sandwich the furnace cloth 4 between the washer plate 6' and the holding plate 7', and insert the washer 2 from the washer plate side.
Tighten bolts 5 with 0.
And a presser plate 7' is attached to the furnace cloth 4. When the furnace plates 2, 2' are tightened, the necks 5a of the bolts 5 of each washer plate 6' butt against the opposing surfaces of the opposing washer plates 6', leaving a gap between the two washer plates 6', 6'. form 9. Note that each bolt 21 provided at the bottom of each washer plate 6' is rearranged in the same phase as each bolt 21 provided at the bottom of the opposing washer plate 6', so that the head 21a of each bolt 21 is By abutting each other, the gap 9 is extended further downward. In this modification, by changing the number of washers 20 fitted to each of the bolts 5, changing the thickness of each washer 20, etc., the double washer plate 6'
, 6' can be changed, and it is possible to follow changes in the thickness of the furnace cloth 4 and manufacturing errors in bolt attachment locations such as the bolts 5 and washer plates. In this embodiment and the following modified examples, the same parts and parts as those in the previous embodiment (see FIGS. 1 to 4) are given the same reference numerals and explanations will be omitted. Also, the 8th and 9th
, 10 and 11, instead of the upper semicircular washer plate 6 which is a vertically elongated plate material, there is an annular washer plate 22 that abuts around the stock solution supply port 4a of the furnace cloth 4, and a lower part of the washer plate 22. A caul plate 10 located at the washer plate 22 and the caul plate 1 is provided.
The furnace cloth 4 may be sandwiched between the holding plate 7' and the holding plate 7', and then tightened with the bolts 5, 5.

In addition, 12 is an auxiliary furnace cloth provided at the part of the furnace cloth 4 where the washer plate 22, the backing plate 10 and the presser plate 7' are attached,
The furnace cloth is being reinforced. In this modification, the weight of the stock solution supply device can be reduced, and the load on the furnace cloth 4 can be reduced. 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. Further, instead of the bolt 5 forming a part of the fastening member, a fastening screw 15 having a small diameter rod portion 15a at one end and a threaded portion 15b at the other end may be used, as shown in FIG.

The rod portion 15a closely competes with the mounting hole 7'c of the presser plate 7' to fix the fastening screw 15 to the presser plate 7' by welding, and also has a threaded portion protruding from the opposing surface of the washer plate 6'. 15b through the furnace cloth 4 and washer plate 6', and then attach the nut 16.
This nut 16 is butted against the opposing surfaces of the opposing washer plates 6' to form a gap 9 between the two washer plates 6'. Further, as shown in FIG. 13, a bolt 17 is used instead of the bolt 5, and the threaded part 17a at one end is screwed into the threaded hole 7'd of the holding plate 7', while the threaded part 17b at the other end is threaded into the threaded part 17a at the other end. Pass the nut 1 through the furnace cloth 4 and washer plate 6'
6 vertically, and a washer plate 6' facing the nut 16.
A gap 9 may be formed between the washer plates 6' and 6' by abutting the opposite surfaces of the washer plates 6', 6'. In addition, flat head screws 19 and washers 20 as shown in FIG. 14 are used as fastening members.
......, 20 and the nut 16 may be combined.

A gap 9 is formed between the two washer plates 6', 6' by abutment between the nut 16 and the opposing surfaces of the opposing washer plate 6'. Further, each washer plate does not need to be a single plate, and may be divided into circumferentially, for example. Further, each of the washer plates described above is not limited to the illustrated shape, but may be any shape such as an ellipse as long as it can function as a washer member. Furthermore, if the washer plate is extremely thin, a protrusion for screwing or the like may be appropriately formed on the surface of the washer plate to provide strength. Furthermore, the presser plate may have any shape as long as it can produce the same effects as described above.
Further, by making each through hole of the washer plate and the presser plate smaller than the stock solution supply port of the furnace cloth, the area around the stock solution supply port of the furnace cloth can be protected and the flow rate of the stock solution can be adjusted.

Further, the through holes in the washer plate and the through hole in the holding plate may be made gradually smaller from the raw solution supply side of the filter press toward the distal end thereof, so as to provide a narrowing gradient to the raw solution supply path. Either embodiment can achieve the intended purpose.

[Brief explanation of drawings]

FIG. 1 is an explanatory view of the main parts of the stock solution supply device according to the embodiment of the present invention, showing the state in which the washer plate and presser plate are attached to the furnace cloth, and FIG. Figure 3 is a front view showing the washer plate and presser plate attached to the furnace cloth.
, 2 is a longitudinal cross-sectional side view of the stock solution supply device according to FIG. 2, and FIG. The two furnace plates on the right side in the same figure are vertical cross-sectional views of the main parts showing the state of the furnace plates in the tightened state.
, 2, the left side of the center line is a front view, the right side of the center line is a rear view, FIG. 7 is a vertical cross-sectional view of both sides of the concentrate supply device according to FIGS. 5 and 6, and FIGS. 8 and 9 are respectively FIG. 10 is a vertical cross-sectional side view of the stock solution supply device according to FIGS. 8 and 3, and FIG. 11 is a front view showing another modification of the stock solution supply device shown in FIGS. 1 and 2. This is a vertical cross-sectional view of the main part of the furnace plate of the filter palace, in which the two furnace plates on the left side of the figure are longitudinal cross-sectional views of the main part showing the condition of the furnace plate, and the two furnace plates on the right side of the figure are the vertical cross-sectional view of the main part of the furnace plate. FIGS. 12, 13, and 14 are longitudinal sectional views of essential parts showing various modifications of the fastening member. FIGS. 1... Raw solution supply device, 2, 2'... Furnace plate, 4... Furnace cloth, 6, 6', 22...
Washer plate, 7, 7'... Pressing plate, 8...
Bolt, 9... Gap, 10... Backing plate, 14... Furnace chamber, 15... Fastening screw,
16.... ．． - Nut, 17... Bolt with tank, 19... Countersunk screw, 20... Washer. Figure 1 Figure 2 Figure 3 Figure 5 Figure 6 Figure 4 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14

Claims (1)

[Scope of Claims] 1. A pair of filter cloths sandwiched between adjacent filter plates has a washer plate having a through hole on the surfaces facing each other around each stock solution supply port, and also a washer plate having a through hole on the opposite surface facing the filter plate. A holding plate having a through hole is brought into contact with each of the holding plates, the filter cloth is sandwiched between the washer plate and the holding plate, and a plurality of tightening members are integrally attached to the holding plate from the washer plate side around the through hole. When the frame is closed by making the head of the fastening member protrude inside the washer plate and tightening the filter cloth between the filter plates, the top surface of the head of the fastening member made to protrude inside each washer plate is connected to the opposite washer plate. A constant gap is provided between a pair of washer plates that directly butt against the opposing surfaces, and the undiluted solution is
The liquid is supplied between the pair of filter cloths through the hole in the filter plate, the through hole in the holding plate, the liquid supply port in the filter cloth, and the through hole in the washer plate, and further through the gap between the washer plates. A stock solution supply device for filter presses. 2. The stock solution supply device for a filter press according to claim 1, wherein the fastening member is composed of a bolt and a washer, and the gap between the opposing washer plates can be adjusted by the washer.