JPH0543401B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a filter press, and particularly to a filter press in which a stock solution supply hole for a stock solution to be supplied between adjacent filter plates can be changed as appropriate for the filtration bed portion of each filter plate.

[Conventional technology]

As a conventional filter press, for example, a plurality of center feed type filter plates are arranged in parallel, each having a frame portion and a filter bed portion provided inside the frame portion and having a circular stock solution supply hole formed in the center portion. In addition, a pair of filter cloths each having a circular stock solution supply port approximately the same size as the stock solution supply hole of each filter plate is suspended and supported between adjacent filter plates by filter cloth hanging rods. . 2 facing each other through each of the above filter plates.
The surrounding portions of each stock solution supply port of the two filter cloths are connected to each other by, for example, being sewn to each end of a cylindrical connecting cloth inserted into the stock solution supply hole of each filter plate. Thereby, each stock solution supply port of the two filter cloths is fixed to the stock solution supply hole of each of the filter plates. Therefore, the stock solution is supplied between adjacent filter plates through the stock solution supply port of each filter cloth and the stock solution supply hole of each filter plate.

[Problem to be solved by the invention]

By the way, in the above-mentioned center feed type filter press, even if vibration is applied to each of the filter cloth hanging rods by, for example, a vibration applying device when the filter plate frame is opened after filtration, the filter cloth will not be suspended and supported by each of the filter cloth hanging rods. Since the stock solution supply port of the filter cloth is fixed to the stock solution supply hole of each filter plate, this vibration is transmitted above the stock solution supply port of the filter cloth, but around the stock solution supply port. The vibration is reduced, and it is difficult for the vibration to be transmitted to the lower part of the stock solution supply port. Therefore, even if each of the filter cloth hanging rods is provided at the time of filter plate spacing, the cake will fall above the stock solution supply port of each filter cloth, but the cake will fall below the stock solution supply port of each filter cloth. There is a problem in that the cake is difficult to fall. In order to solve this problem, it may be possible to change the stock solution supply type of the filter press from the center feed type to the bottom feed type in which the stock solution passes through the lower end of the filter bed of each filter plate. It will be done. In this way, the vibrations applied to each of the filter cloth hanging rods are transmitted to the lower end of each of the filter cloths. However, the stock solution supply hole of the center feed type filter plate is formed in the center of the filter bed, and its position cannot be changed within the filter bed. It cannot be changed. Therefore, in order to solve the above problem, the entire device must be replaced with the bottom feed type. In this case, it is necessary to install a filter press whose stock solution supply type is the bottom-feed type at its installation location, and the user is accustomed to handling center-feed type filter presses, but the bottom-feed type There is a problem in that because the user is not familiar with the product, he or she has to be given a new explanation of how to handle and operate the product, which is troublesome. As described above, in the conventional filter press, it is not possible to change the stock solution supply type as appropriate without replacing the device, and when the device is replaced, the above-mentioned problems occur. The present invention has been devised in view of the above problems and to effectively solve them. Therefore, the object is to provide a filter press in which the stock solution supply holes for the stock solution can be changed as appropriate for the filter bed portion of each filter plate without replacing the device.

[Means to solve the problem]

The filter press according to the present invention is configured as follows in order to solve the problems of the prior art and achieve the objective. That is, a plurality of filter plates having a frame portion and a filter bed portion provided inside the frame portion and having stock solution supply holes formed at predetermined locations are arranged in parallel, and a pair of filter plates each having a stock solution supply port are arranged in parallel. A cloth is arranged between adjacent filter plates, and the periphery of each stock solution supply port of the two filter cloths facing each other with the filter plates in between is connected to each other, and the connecting portion is inside the stock solution supply hole of each filter plate. In the filter press inserted into the filter press, the stock solution supply hole of each of the filter plates is formed in a long length along the vertical direction in the filtration bed of each of the filter plates, and two The connecting portion of each stock solution supply port of the two filter cloths is movable along the vertical direction within the stock solution supply hole by moving the filter cloth along the vertical direction with respect to each filter plate, and the connecting portion is located at the upper end of the stock solution supply hole, the upper half of the filter cloth is movable above the filter plate, and
A filter cloth moving means is provided that allows the lower half of the filter cloth to move below the filter plate when the connecting portion is located at the lower end of the stock solution supply hole. Further, in the above configuration, the stock solution supply hole of each of the filter plates is formed in a long length along the vertical direction of each of the filter plates, and the filter cloth moving means is arranged above each of the filter plates, and the a first roller that holds the upper end portion of each filter cloth and is capable of winding up and unwinding; and a first roller disposed below each filter plate that holds the lower end portion of each filter cloth and winding up and unwinding it; a drive means for driving the respective first rollers and the respective second rollers to rotate in forward and reverse directions in synchronization; By driving, the two filter cloths facing each other with the filter plates in between are moved together in the same direction along the vertical direction, and the connecting portion of each stock solution supply port of the two filter cloths is connected to the stock solution supply port of each filter plate. It may also be moved vertically within the supply hole. Further, at corresponding predetermined portions of the upper and lower end portions of each of the filter plates, the frame portion protrudes upward and downward from other portions of the upper and lower end portions of each of the filter plates, respectively, in a roughly “U” shape. The stock solution supply hole may be formed along the vertical direction between both of these protruding parts. Moreover, the filter bed portion of each of the above-mentioned filter plates may be made of a perforated plate.

[Action/Effect of invention]

According to the filter press according to the present invention, the stock solution supply holes of each of the filter plates are formed in a long length along the vertical direction within the filter bed of each of the filter plates, and the filter cloth moving means is provided. , move the two filter cloths facing each other with the filter plates in between, along the vertical direction with respect to each filter plate, and connect the connecting portions of the stock solution supply ports of the two filter cloths within the stock solution supply holes. It can be moved in the vertical direction. When the connecting portion is positioned at a predetermined location within the stock solution supply hole of each of the filter plates, the stock solution passes through the stock solution supply port of each of the filter cloths and the predetermined location of the stock solution supply hole of each of the filter plates adjacent to each other. Supplied between the filter plates. Therefore, according to the filter press according to the present invention, it is possible to change the stock solution supply hole for the stock solution supplied between adjacent filter plates as appropriate to the filter bed portion of each filter plate without replacing the device. Wear. Moreover, according to the filter press according to the present invention,
After filtration, by moving each of the filter cloths along the vertical direction using the filter cloth moving means when the filter plate frame is opened, it is possible to effectively generate vibrations in the entirety of each filter cloth, and therefore, The cake adhering to the entirety of each filter cloth can be effectively dropped. Moreover, according to the filter press according to the present invention,
Each of the filter cloths is moved along the vertical direction by the filter cloth moving means, and when the connection part of the filter cloth is located at the upper end of the stock solution supply hole, the upper half of the filter cloth reaches above the filter plate. In addition to being movable,
When the connecting portion is located at the lower end of the stock solution supply hole, the lower half of the filter cloth can be moved below the filter plate, and at least the upper and lower halves of each filter cloth are connected to the adjacent filter. Since the filter cloth can be taken out from between the plates, each filter cloth can be easily cleaned compared to a filter press in which the filter cloth cannot be moved relative to the filter plate. Moreover, according to the filter press according to the present invention,
The stock solution supply hole is formed in a long length along the vertical direction of each of the filter plates, and the filter cloth moving means moves between each of the first rollers, the second rollers, and the first rollers.
When the roller and the second roller are driven synchronously, the drive means drives the first roller and the second roller to drive each of the filters. The connecting portion can be moved to a predetermined location within the stock solution supply hole by simultaneously moving two filter cloths facing each other with the plate in between in the same direction along the vertical direction of each filter plate. Moreover, according to the filter press according to the present invention,
An upwardly protruding portion and a downwardly protruding portion of the frame are formed at corresponding predetermined portions of the upper and lower ends of each of the filter plates, and the stock solution supply hole is formed between the two protruding portions. When the connection part is positioned at the upper end of the stock solution supply hole, the stock solution supply type between adjacent filter plates becomes a top feed type, and the connection part is positioned at the top of the stock solution supply hole. When the connecting portion is positioned at the lower end of the undiluted solution supply hole, the undiluted solution supply type becomes a bottom feed type, and when the connecting portion is positioned at the center of the undiluted solution supply hole, the undiluted solution supply type becomes a center feed type. When the stock solution supply type is the top feed type, the entire upper part of each filter cloth above the stock solution supply hole can be taken out above each filter plate, so that the upper part can be easily and reliably washed. I can do it. In addition, when the stock solution supply type is the bottom feed type, the entire lower part of each filter cloth than the stock solution supply hole can be taken out below each filter plate, so that the lower part can be easily and reliably washed. I can do things. Therefore, by positioning the connecting portions at the upper and lower ends of the stock solution supply hole, the entirety of each of the filter cloths can be easily and reliably washed.

【Example】

Below, preferred embodiments of the filter press according to the present invention will be described with reference to FIGS. 1 to 19. FIG. 1 is a longitudinal sectional view between adjacent filter plates of a filter press according to an embodiment of the present invention. Note that this figure is a rear view of one intermediate filter plate among the plurality of filter plates that constitute the filter press according to the present embodiment. In the filter press according to this embodiment, a front stand 27 located at the left end in FIG.
A movable plate 26 is provided between a rear stand 56 located at the right end in FIG. 2 and is driven in the front-rear direction by a cylinder 57 fixed to the rear stand 56
A plurality of filter plates 1, which are opened or closed by
1, 28, and 29 are arranged in parallel, and a pair of filter cloths 2, 83, 2, and 80 are arranged between adjacent filter plates. These plurality of filter plates 1,..., 1, 28, 29
Of these, the rightmost filter plate in Figure 2, that is, the rear filter plate 2
8 is fixed to the movable plate 26 and moved in the front-rear direction, while the filter plate 29 at the left end in FIG. 2, that is, the front end filter plate 29 is fixed to the front stand 27 so as not to move. Moreover, intermediate filter plates 1,..., between these front and rear end filter plates 29, 28,
1 is suspended and supported by a pair of side beams 22, 22 disposed along the front-rear direction on both sides of the front stand 27 and the rear stand 56 so as to be movable back and forth. In the filter press according to this embodiment, by simultaneously moving the two filter cloths 2, 83 facing each other across the intermediate filter plates 1 in the vertical direction, the type of stock solution supplied between adjacent filter plates can be adjusted as appropriate. It is now possible to change. Incidentally, filtrate recovery pipes 58 and 59 are attached to the upper and lower ends of the front stand 27, respectively. As shown in FIGS. 9 and 11, each intermediate filter plate 1 is composed of a frame portion 1b and a filter bed portion 1c provided inside the frame portion 1b. A stock solution supply hole 1a, which is elongated in the vertical direction from the upper end to the lower end, is formed in the center of the filter bed 1c along the left-right direction in FIG. Further, no holes are formed in the filter bed section 1c except for the stock solution supply hole 1a, and a large number of protrusions are provided along the vertical direction on both sides of the filter bed section 1c. In addition, handles 1f and 1g are provided near the upper ends of both left and right sides of each of the intermediate filter plates 1 in FIG. It is supported by the pair of side beams 22, 22. still,
As shown in FIGS. 9 and 10, the upper and lower ends of both left and right sides of each intermediate filter plate 1 in FIG. Pin holes 1e, . . . , 1e are formed. In FIG. 9, reference numeral 1h indicates a filtrate passage for guiding the filtrate in the filtration chamber to the filtrate recovery pipes 58 and 59. In addition, as shown in FIG. 1, each of the intermediate filter plates 1
Support frames 23 and 24, each having a roughly U-shaped longitudinal section, are attached to the upper and lower ends of the frame. The upper support frame 23 of these two support frames has two filter cloths 2 and 8 facing each other with the intermediate filter plates 1 interposed therebetween.
First rollers 3 and 5, which hold the upper end portions of the rollers 3 and are capable of winding and unwinding, are rotatably supported side by side in the vertical direction via respective rotation shafts 92 and 90. On the other hand, the lower support frame 24 of the two support frames has the two filter cloths 2,
Second rollers 4 and 6, which hold the lower end portions of the rollers 83 and are capable of winding and unwinding, are rotatably supported side by side in the vertical direction via respective rotation shafts 93 and 91. The left end in FIG. 1 of the rotating shafts 90, 91 of the first roller 5 and second roller 6, which respectively hold the upper and lower end portions of one of the filter cloths 83, is the left end of each of the support frames 23, 24. In FIG. 1, it penetrates the left end wall and protrudes greatly, and sprockets 13 and 14 are attached to the tips thereof, respectively, and an endless chain 15 is hung between these two sprockets 13 and 14. Therefore, these two sprockets 13, 14 are rotated synchronously. In addition, this chain 15 has its upper and lower ends attached to the respective support frames 23 and 24 in a portion between these two sprockets 13 and 14, and is arranged vertically toward the front side in FIGS. 2 and 3. It is housed in a chain cover 16 having a notch 16a along the chain. In addition, the above chain 15
The drive claw 18 of the drive rod 17 is locked through the notch 16a of the chain cover 16. The drive rod 17 has a roughly U-shaped cross section, and both ends of the drive rod 17 are cylinders 4 disposed on the sides of the front stand 27 and the rear stand 56.
The piston rods 8 and 46 are fixed to the upper ends of the piston rods 49 and 47. Therefore, these cylinders 48, 46
The drive rod 17 moves up and down in a horizontal state due to the synchronous drive, and the chain 15 is rotated in the forward and reverse directions via the drive claw 18. In addition, as shown in FIGS. 1 and 4, in FIG. The right end portion penetrates the right end wall of the upper support frame 23 in FIG. Chain 11 is attached. Therefore, the two first rollers 3 and 5 are synchronously rotated in the same direction. In addition, as shown in Figures 1 and 4, the above 2
In FIG. 1, the right end of each rotating shaft 93, 91 of each second roller 4, 6 that holds the lower end portion of each filter cloth 2, 83, respectively, is the first one of the lower support frame 24.
In the figure, it penetrates the right end wall and protrudes slightly, and sprockets 8 and 10 are attached to the tips of the sprockets, respectively, and an endless chain 12 is hung between these two sprockets 8 and 10. Therefore, the two second rollers 4 and 6 are synchronously rotated in the same direction. Therefore, the drive claw 1 is controlled by the drive rod 17.
When the chain 15 is moved in the vertical direction via the roller 8, the first rollers 3 and 5 and the second rollers 4 and 6 are rotated in the same forward and reverse directions in synchronization. On the other hand, the front end filter plate 29 and the rear end filter plate 28
consists of a frame part (not shown) and a filter bed part (not shown) inside the frame part, but unlike each intermediate filter plate 1 described above, the stock solution supply hole (not shown) is long along the vertical direction. It is not formed in a square shape, but is formed in a circular shape, for example, in the center of the filter bed. Further, the front surface of the front filter plate 29 is in contact with the front stand 27, so the front surface does not function as a filter bed, and only the rear surface functions as a filter bed. Further, no open frame link rod is provided between the front end filter plate 29 and the intermediate filter plate 1 adjacent thereto. On the other hand, the rear surface of the rear end filter plate 28 is in contact with the movable plate 26, so that the rear surface does not function as a filter bed, and only the front surface functions as a filter bed. Further, open frame link rods 19, . However, the other end of each open frame link rod 19 is not attached to the rear end filter plate 28, but is attached to the movable plate 26 to which the rear end filter plate 28 is fixed.
It is attached to with pin 40. Further, as shown in FIG. 6, the rear end filter plate 28
Support frames 30 and 31 each having a substantially U-shaped longitudinal section are attached to the upper and lower ends, respectively. A suspension support is provided on the bottom wall of the upper support frame 30 of these two support frames to suspend and support the upper end of the filter cloth 80 disposed in front of the rear end filter plate 28 via brackets 99, 99. A rod 50 is supported. Moreover, one rotating shaft 52 is rotatably supported above the hanging support rod 50. In addition, the above 2
On the bottom wall of the lower support frame 31 of the two support frames,
Each end of the holding rod 51 that holds the lower end of the filter cloth 80 is attached via a coil spring 54, respectively. Further, below this holding rod 51, there is one rotating shaft 5 to which a filter cloth beating rod 53 is attached.
5 is rotatably supported. The left end portion of each rotary shaft 52, 55 supported by each support frame 30, 31 of the rear end filter plate 28 in FIG. 6 passes through the left end wall of each support frame 30, 31 in FIG. Sprockets 34 and 35 are attached to the tips of the sprockets 34 and 35, respectively, and an endless chain 36 is hung between these two sprockets 34 and 35. Therefore, the two rotating shafts 52 and 55 are synchronously rotated in the same direction. This chain 36 has its upper and lower ends attached to the respective support frames 30 and 31 in a portion between these two sprockets 34 and 35, and has a notch 41a along the vertical direction on the near side in FIG. It is housed in a chain cover 41 having a. Further, a drive claw 98 of the drive rod 17 is locked to the chain 36 through the notch 41a of the chain cover 41. When the chain 36 is moved in the vertical direction together with the drive claw 98, the two shafts 52 and 55 are rotated in the same direction in synchronization, and the filter cloth tapping rod 53 is rotated. The filter cloth 80 disposed on the front side of the rear end filter plate 28 is repeatedly struck to give vibration to the filter cloth 80. At that time, the holding rod 51 that holds the lower end of the filter cloth 80
Since each end portion of is attached to the bottom of the lower support frame 31 via each coil spring 54, the vibration is amplified by the expansion and contraction of the coil spring 54 and is transmitted to the entire filter cloth 80. On the other hand, a filter cloth (not shown) disposed on the rear side of the front end filter plate 29 also has a filter cloth 80 disposed on the rear side of the rear end filter plate 29.
It is suspended and supported in the same way as the front side of 8. Further, the structure for applying vibration by hitting the filter cloth suspended and supported on the rear side of the front end filter plate 29 also applies vibration by hitting the filter cloth 80 suspended and supported on the front side of the rear end filter plate 28. It is provided in the same manner as the one given. In Figure 2, 32 and 33 are support frames, 4
2 and 43 are sprockets attached to each shaft (not shown) rotatably supported by the support frames 32 and 33, respectively; 44 is a chain; 45 is a chain cover; 45a is formed on the chain cover 45. It's a cutout. A driving claw (not shown) of the operating rod 17 is engaged with the chain 45 through a notch 45a of the chain cover 45. Further, as shown in FIGS. 7 and 8, the two filter cloths 2 and 83 facing each other with the intermediate filter plates 1 in between are each made of a long belt-like cloth, and the center portion along the longitudinal direction is Further, circular stock solution supply ports 2a and 83a are formed at the center in the width direction perpendicular to the longitudinal direction. Furthermore, the surrounding portions of the stock solution supply ports 2a and 83a of these two filter cloths 2 and 83 are connected to each other by being sewn to each end of the cylindrical connecting cloth 25. Further, as shown in FIG. 5, the two filter cloths 2, 83 are connected to the cylindrical connecting cloth 25 as a connecting part of each stock solution supply port 2a, 83a to the stock solution supply hole 1a of each intermediate filter plate 1. In the inserted state, the upper end portion and the lower end portion thereof are wound and held around the first rollers 3, 5 and the second rollers 4, 6. Further, the filter cloths 80 disposed on the front side of the rear end filter plate 28 are two filter cloths 80 facing each other with the intermediate filter cloths 1 interposed therebetween.
It is made of a shorter cloth than the two filter cloths 2 and 83, and a circular stock solution supply port (not shown) is formed approximately in the center thereof. The filter cloth 80 is fixed at its upper and lower ends with the part around the stock solution supply port fixed to the part around the stock solution supply hole of the rear end filter plate 28 by, for example, a ring-shaped filter cloth fastener (not shown). The rear filter plate 28 is supported by a hanging support rod 50 and a holding rod 51 supported by the bottom walls of support frames 30 and 31 attached to the upper and lower ends of the rear filter plate 28, respectively. Further, a filter cloth (not shown) disposed on the rear side of the front end filter plate 29 also has the same shape as the filter cloth 80 disposed in front of the rear end filter plate 28.
0 is suspended and supported on the front side of the rear end filter plate 28, and is suspended and supported on the rear side of the front end filter plate 29. Here, each of the first rollers 3 and 5, each of the second rollers,
Rollers 4, 6, sprockets 7, 8, 9, 1
0, 13, 14, the above chain 11, 12, 1
5, the drive claw 18, the drive rod 17, the two cylinders 48, 46, and each cylinder 4;
Piston rods 49 and 47 of 8 and 46 constitute filter cloth moving means according to this embodiment. Also, among them, the above sprockets 7, 8, 9, 10, 13,
14, the chains 11, 12, 15, the drive claw 18, the drive rod 17, the two cylinders 4
8, 46 and the piston rods 49, 47 of the respective cylinders 48, 46 are connected to the respective first rollers 3, 5.
It also serves as a driving means for driving each of the second rollers 4 and 6 in forward and reverse directions. According to the filter press, the drive rod 17
However, as shown in FIG. 2, the notches 44 of all the chain covers 44, 46, .
a, 16a, . . . 16a, 41a in the lower end position, the vertically intermediate position, and the upper end position in FIG. , 83 between the stock solution supply ports 2a and 83a are respectively positioned at the lower end, the vertically intermediate portion, and the upper end of the stock solution supply hole 1a of each intermediate filter cloth 1, and therefore, The types of raw solution supplied between adjacent filter plates are bottom feed type, center feed type, and top feed type. According to the above configuration, for example, when the stock solution supply type is set to the center feed type, the movable plate 26 is moved forward to remove all of the intermediate filter plates 1,..., 1 and the rear end filter plate 28 from the front end filter plate. After closing the frame by tightening it to the 29 side, the stock solution is supplied from the stock solution supply hole of the front end filter plate 29, and the stock solution is transferred to the two filter cloths 2 and 8 facing each other with the intermediate filter plate 1 interposed therebetween.
The stock solution passes through each of the stock solution supply ports 2a and 83a of 3 and the cylindrical connecting cloth 25 between them, and is supplied between adjacent filter plates to perform filtration. After the filtration is completed, the movable plate 26 is moved back and the rear end filter plate 28 and the intermediate filter plates 1, . . . , 1 are opened all at once. Also,
After opening the frame, by simultaneously driving the two cylinders 48 and 46 to move the drive rod 17 up and down,
All of the above chains 44, 15,..., 15, 3
6 are driven at the same time, and each of the filter cloths suspended and supported on the rear and front sides of the front end filter plate 29 and the rear end filter plate 28 is repeatedly struck by a beating rod, thereby causing each filter cloth to vibrate. At the same time, the two filter cloths 2, 83 facing each other with the intermediate filter plates 1 in between move simultaneously in the same direction along the vertical direction, and vibrations are generated in each of the filter cloths 2, 83. Therefore, the cake adhering to each of the filter cloths 2, 83, 80 can be effectively dropped from each of the filter cloths. In addition, the above 2
The two cylinders 48 and 46 are driven to drive the drive rod 1.
7 to the upper end position, most of the upper part of each intermediate filter cloth 1 above each stock solution supply hole 2a, 83a of the two filter cloths 2, 83 facing each other with the intermediate filter cloth 1 interposed therebetween is gradually removed. Since it can be taken out upwardly, most of the upper part can be easily and reliably cleaned. Conversely, when the two cylinders 48 and 46 are driven to move the drive rod 17 to the lower end position, most of the lower part of the two filter cloths 2 and 83 below the stock solution supply holes 2a and 83a are removed. Since it can be gradually taken out below each intermediate filter plate 1, most of the lower part can be easily and reliably washed. Therefore, almost the entirety of each of the filter cloths 2, 83 can be easily and reliably washed. In addition, in the above filter press, the above 2
Filtration can also be performed with the two cylinders 48 and 46 being driven to change the stock solution supply type from the center feed type to the top feed type or the bottom feed type. In these cases,
After the filter plate frame is closed, when the stock solution is supplied from the stock solution supply hole of the front end filter plate 29, the stock solution is supplied to the front end filter plate 2.
9 and an adjacent intermediate filter plate 1 into a filter chamber between a pair of filter cloths. In the top feed type, when this filter chamber is almost filled with the stock solution, each stock solution supply port 2 of the filter cloth 2, 83
a, 83a into the next filter chamber. On the other hand, in the bottom feed type, the front end filter plate 2
When the stock solution accumulates in the lower part of the filter chamber between the filter cloth 9 and the adjacent intermediate filter plate 1, the stock solution is transferred to the next filter chamber through the stock solution supply ports 2a and 83a of the filter cloths 2 and 83. Supplied. When the above-mentioned stock solution supply type is the above-mentioned top feed type, when the filter plate frame is opened, each of the above-mentioned intermediate filter plates 1
By applying vibration, for example, manually or by a drive device, to the lower ends of the two filter cloths 2, 83 facing each other with the , 83 to allow the cake to fall. In addition, when the above-mentioned stock solution supply type is the above-mentioned bottom-feed type, when the filter plate frame is opened, the upper ends of the two filter cloths 2, 83 facing each other with the intermediate filter plates 1 in between may be By applying vibration, the whole of each filter cloth 2, 83 can be vibrated, and the cake can be dropped from each filter cloth 2, 83. As described above, according to the filter press according to the present embodiment, the stock solution supply holes for the stock solution to be supplied between adjacent filter plates are connected to the filter bed portion 1c of each of the intermediate filter plates 1 without replacing the device. It can be changed as appropriate. The present invention is not limited to the above-described embodiments, but can be implemented in various other ways. For example, in the above embodiment, the stock solution supply hole 1a of the intermediate filter plate 1 was formed along the vertical direction within the filter bed section 1c.
c, and each intermediate filter plate 1 is formed along an arbitrary direction within c.
The two filter cloths 2, 83 facing each other may be movable along the arbitrary direction. In addition, a plurality of stock solution supply ports are formed in each of the two filter cloths 2 and 83 facing each other with each of the intermediate filter plates 1 interposed therebetween, and the stock solution supply holes described above allow each stock solution supply port to be moved in a predetermined direction. A plurality of filters may be formed along the predetermined direction within the filter bed portion 1c of each intermediate filter plate 1. Further, in the above embodiment, no holes were formed in the filter bed portion 1c of each intermediate filter plate 1 except for the stock solution supply hole 1a, but there were a plurality of holes in addition to the stock solution supply hole 1a. may be formed. That is, for example, each intermediate filter plate 1 may be changed to a filter plate 60 in which the filter bed portion 60C inside the frame portion 60b is made of a perforated plate, as shown in FIGS. 12 to 15. The filter bed portion 60c of this filter plate 60 has a long stock solution supply hole 6 similar to that in the above embodiment.
0a is formed, and the outside of the stock solution supply hole 60a is formed into a roughly lattice shape by a large number of frameworks along the vertical direction and the horizontal direction in FIG. 12. Therefore, a generally rectangular hole 6 is formed in the portion surrounded by the vertically adjacent skeletons and the horizontally adjacent skeletons.
0g is formed. In FIGS. 12 and 13, 60d and 60e are handles, and 60f is a flow path for guiding the filtrate in the filtration chamber to the filtrate recovery pipes 58 and 59. Alternatively, each of the intermediate filter plates 1 may include the sixteenth to first filter plates.
You may change to the filter plate 70 as shown in FIG. The upper and lower ends of the frame 70b of the filtrate 70 in the left-right center in FIG. A long stock solution supply hole 70a is formed along the vertical direction. Above frame part 7
The outside of the stock solution supply hole 70a of the filter bed 70c provided inside the filter plate 60 is located along the vertical direction with a larger interval than the framework constituting the filter bed 60c of the filter plate 60 shown in FIGS. 12 to 15. It is formed roughly into a lattice shape by the framework along the left and right directions. Therefore, a generally rectangular hole 70j is formed in a portion surrounded by the vertically adjacent skeletons and the horizontally adjacent skeletons. In the above embodiment, when each of the intermediate filter plates 1 is changed to the filter plate 70 having the above structure, the two cylinders 48, 46
When changing the stock solution supply type from the bottom feed type to the top feed type by driving the
Since the entire upper part of the two filter cloths 2, 83 facing each other with 0 sandwiched therebetween can be gradually taken out from each stock solution supply hole 2a, 83a above each filter plate 70, all the upper parts can be easily and reliably removed. In addition, when changing the stock solution supply type from the top feed type to the bottom feed type by driving the two cylinders 48 and 46,
Each stock solution supply hole 2a, 8 of the above two filter cloths 2, 83
Since all the parts below 3a can be gradually taken out below each filter plate 70, all the parts below can be easily and reliably washed. Therefore,
Thereby, the entirety of each of the filter cloths 2, 83 can be easily and reliably washed. Such an effect is achieved by the frame portion 1b of the intermediate filter plate 1 in the above-mentioned embodiment.
In FIG. 9, the upper and lower end portions of the undiluted solution are formed by projecting upwardly and downwardly in the shape of a "U" in the left and right direction, respectively, and between these projecting portions is a long undiluted solution supplying section along the vertical direction. It is also possible to form the hole 1a. In addition, in FIG. 12, 70f and 70g are handles, and 70i is the filtrate collection pipe 5 for collecting the filtrate in the filter chamber.
8, 59 is also a flow path. Further, the filter bed portion 1c of each of the intermediate filter plates 1 may be formed of a net or cloth, or may be formed by appropriately arranging a plurality of rods. In addition, the front end filter plate 29 and the rear end filter plate 28
Also, their filter beds may be constructed of perforated plates, nets or cloth, or may be constructed by appropriately arranging a plurality of rods. Further, in the above embodiment, two rollers 3 are provided above and below each of the intermediate filter plates 1, respectively.
However, only one roller is provided above each intermediate filter plate 1, and this roller connects the two filter cloths 2, 8 facing each other with each intermediate filter plate 1 in between.
At the same time, a roller is provided below each intermediate filter plate 1, and this roller causes each lower end of the two filter cloths 2, 83 to be held and simultaneously wound up and unwound. It is also possible to hold the portion and simultaneously wind it up and unwind it. Further, in the above embodiment, the upper drive rod 17
By the two cylinders 48 and 46,
All of the above chains 44, 16,..., 16, 3
6 are driven simultaneously, but each chain 4
4, 16, 36 may be separately provided for each filter plate 29, 1, 28 to drive each chain 44, 16, 36 separately. Further, in the above embodiment, the first rollers 3 and 5 and the second rollers 4 and 6 arranged above and below each of the intermediate filter plates 1 were all rotated synchronously. Each of the first rollers 3 and 5
Further, means for driving the second rollers 4 and 6 may be provided separately, and the first rollers 3 and 5 and the second rollers 4 and 6 may be driven separately. Further, in the above embodiment, the first rollers 3 and 5 and the second rollers 4 and 6 are provided above and below each intermediate filter plate 1, and are opposed to each other with the intermediate filter plate 1 in between. The upper and lower ends of the two filter cloths 2 and 83 are held by the first rollers 3 and 5 and the second rollers 4 and 6, but the upper and lower ends of the two filter cloths 2 and 83 are Two rollers are provided only for the filter, and each roller holds the upper end of the two filter cloths 2, 83 with the lower ends of the two filter cloths 2, 83 as free ends, and the rollers are rotated in forward and reverse directions. A driving means may be provided, and the two filter cloths 2, 83 may be moved in the vertical direction by the driving means. Further, the upper and lower end portions of the two filter cloths 2 and 83 facing each other with the intermediate filter plates 1 in between are connected to filters arranged above and below each of the intermediate filter plates 1 that are movable in the vertical direction. Suspended and supported on a cloth hanging rod,
The two filter cloths 2, 83 may be moved in the vertical direction by moving these two filter cloth hanging rods in the vertical direction. Alternatively, a filter cloth hanging rod for suspending and supporting the upper ends of the two filter cloths 2, 83 is provided only above each of the intermediate filter cloths 1, and the filter cloth hanging rod is moved in the vertical direction. , the two filter cloths 2, 83 may be moved along the vertical direction. Further, regarding the structure in which the filter cloth beating rod 53 is rotated to vibrate the filter cloth 80 by hitting the filter cloth 80 disposed on the front side of the rear end filter plate 28, the filter cloth beating rod 53 is attached. A driving means for rotating only the filter cloth beating rod 55 is provided to rotate the filter cloth beating rod 53.
You may also rotate it. The same also applies to the structure in which a filter cloth beating rod, which is arranged on the rear side of the front end filter plate 29, is rotated to beat the filter cloth and vibrate the filter cloth. In addition, two filter cloths 2 sandwiching each intermediate filter plate 1,
The periphery of each stock solution supply port 2a, 83a may be directly sewn without using the cylindrical connecting cloth 25, and the sewn portion may be used as the connecting portion.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional rear view of one intermediate filter plate between adjacent filter plates in a filter press according to an embodiment of the present invention, FIG. 2 is a side view of the filter press, and FIGS. 3 and 4 are respectively An enlarged left side view and a right side view of the main parts of the filter press shown in FIG. 2, FIG. 5 is a sectional view taken along the line A-A in FIG. 7th
The figure shows the relationship between the two filter cloths facing each other with the intermediate filter plate in between, and each first roller and each second roller. Figure 10 is a front view and right side view of the intermediate filter plate shown in Figure 1, respectively, and Figure 11 is taken from C-C in Figure 9.
A line sectional view, FIGS. 12 and 13 are a front view and a right side view showing another embodiment of the intermediate filter plate, respectively,
Figures 14 and 15 are D-D in Figure 12, respectively.
16 is a front view showing still another embodiment of the intermediate filter plate, and the 17th and 1st
8, and F-F in FIG. 16 in FIG. 19, respectively.
FIG. 1, 60, 70...Filter plate (intermediate filter plate), 1a, 6
0a, 70a...Standard solution supply hole, 1b, 60b, 70
b...frame part, 1c, 60c, 70c...filtering bed part,
2, 83... Filter cloth, 2a, 83a... Stock solution supply port,
3, 5...first roller, 4,6...second roller, 7,
8, 9, 10, 11, 12, 13, 14, 15,
17, 18, 46, 47, 48, 49... Drive means, 7, 8, 9, 10, 13, 14... Sprocket, 11, 12, 15... Chain, 17... Drive rod, 18... Drive pawl, 46, 48 ...Cylinder, 4
7, 49...Piston rod, 25...Connecting portion (cylindrical connecting cloth), 70d, 70e...Protruding portion of frame.

Claims (1)

[Claims] 1. Frame portions 1b, 60b, 70b;
A filter plate 1 having filter bed portions 1c, 60c, and 70c provided inside the filter beds 60b and 70b and having stock solution supply holes 1a, 60a, and 70a formed at predetermined locations,
A pair of filter cloths 2, 8 in which a plurality of filter cloths 60, 70 are arranged in parallel and have stock solution supply ports 2a, 83a, respectively.
3 is arranged between adjacent filter plates, and two filter cloths 2, which face each other with each of the filter plates 1, 60, 70 in between,
The surroundings of each stock solution supply port 2a, 83a of 83 are connected to each other, and the connecting portion 25 is connected to each filter plate 1,
In the filter press inserted into the stock solution supply holes 1a, 60a, 70 of the filter plates 1, 60, 70, the stock solution supply holes 1a,
60a, 70a are formed in a long length along the vertical direction in the filter bed portions 1c, 60c, 70c of each of the filter plates 1, 60, 70, and each of the filter plates 1, 60, 7
The two filter cloths 2, 83 facing each other with 0 in between are moved along the above-mentioned vertical direction with respect to the respective filter plates 1, 60, 70, and the stock solution supply holes 2 of the two filter cloths 2, 83 are removed.
a, 83a to the above-mentioned stock solution supply hole 1.
6a, 60a, 70a, and the upper half of the filter cloth 2, 83 is movable along the above-mentioned upward and downward directions, and the connecting portion 25 is located at the upper end of the stock solution supply hole 1a, 60a, 70a. Board 1, 60, 7
0, and when the connecting portion 25 is located at the lower end of the stock solution supply hole 1a, 60a, 70a, the lower half of the filter cloth 2, 83 is connected to the filter plate 1, 60, 70. A filter press characterized in that it is equipped with a filter cloth moving means that allows the filter cloth to be moved downward. 2 Stock solution supply hole 1 of each of the above filter plates 1, 60, 70
a, 60a, 70a are formed in a long length along the vertical direction of each of the filter plates 1, 60, 70, while the filter cloth moving means
First rollers 3 and 5 are disposed above the filter cloths 2 and 83 to support the upper end portions of the filter cloths 2 and 83 and are capable of winding and unwinding, and are disposed below the filter plates 1, 60 and 70. second rollers 4, 6 which hold the lower end portions of the respective filter cloths 2, 83 and are capable of winding and rewinding; the respective first rollers 3, 5; and the second rollers 4, 6; Drive means 7, 8, 9, 10, 11, 12, 1 that rotates in forward and reverse directions in synchronization
3, 14, 15, 17, 18, 46, 47, 4
8, 49, and the driving means 7, 8, 9, 10, 11, 12,
13, 14, 15, 17, 18, 46, 47, 4
By driving each of the first rollers 3, 5 and the second rollers 4, 6 by circular movement of the rollers 8, 49, the two filter cloths 2, 83 facing each other with the filter plates 1, 60, 70 in between are moved up and down. The connecting portions 25 of the respective stock solution supply ports 2, 38a of the two filter cloths 2, 83 are connected to the respective filter plates 1, 60, 7 by moving them together in the same direction along the direction.
2. The filter press according to claim 1, wherein the filter press is moved vertically within the stock solution supply holes 1a, 60a, and 70a. 3. At the corresponding predetermined portions of the upper and lower ends of each of the filter plates 70, insert the frame portion 70b into each filter plate 7.
The stock solution supply hole 70a is formed so as to protrude upwardly and downwardly from the other parts of the upper end and lower end of 0, respectively, in a roughly "U-shape", and the stock solution supply hole 70a extends in the vertical direction between both of these protruding parts 70d and 70e. The filter press according to claim 1 or 2, wherein the filter press is formed along the line. 4 Filter bed portions 60c, 7 of each of the above filter plates 60, 70
The filter press according to any one of claims 1 to 3, wherein 0c is a perforated plate.