JPH0257966B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is directed to a method in which cloths are arranged on both sides of a plate consisting of a frame body, and a stock solution supply member having a stock solution supply port communicating with the stock solution port of each of the cloths is provided between the two cloths. The present invention relates to an overboard which is suspended from cloth and placed within the frame of the board.

BACKGROUND ART Conventionally, a compound filter press is known as a filter press that uses a plate made of a frame body. In this double filter press, plates each consisting of an overbed and a frame body and a plate consisting of a frame body are arranged alternately, and cloth is placed between each adjacent plate. The stock solution supply port of the body, the stock solution port of the cloth, and the stock solution supply port of the frame body of the board with no overbed are communicated, and the stock solution is passed through these stock solution supply ports and the stock solution port of the board made of each frame. Some are designed to be supplied inside the frame.

Problems to be Solved by the Invention However, in the structure described above, each of the cloths is only sandwiched between the plates and is not secured to each plate in any way, so that when the cloth expands and contracts, the opening and closing of the cloth A major problem was that the plate was misaligned with the stock solution supply port, and the work of correcting this misalignment and tightening the plate was complicated.

In the case of the present invention, in which the overplate is constructed from a frame plate and cloth arranged on both sides of the frame, and a large number of such overboards are arranged between the front and rear stands to construct a filter press, Since there is no member such as a floor that supports the cloth on a surface, the degree of expansion and contraction of the cloth tends to be greater than in the multiple filter press. Therefore, the misalignment between the stock solution opening of the cloth and the stock solution supply port formed on the frame of the plate is more severe than in the above-mentioned double filter press.

Therefore, an object of the present invention is to solve the above-mentioned problems by stabilizing the raw solution inlet portion of the cloth and ensuring that the misalignment between the raw solution supply port on the frame side of the plate and the raw solution inlet of the cloth is prevented. The purpose is to provide a plate that can prevent overloading.

Means for Solving the Problems In order to achieve the above object, the present invention comprises cloths arranged on both sides of a plate consisting of a frame, and a stock solution supply member having a stock solution supply port is attached to the pair of cloths. The cloth is suspended and supported so that the raw solution inlet of the cloth and the raw solution supply port of the raw solution supply member are aligned, and is configured to be locked so as to restrict movement of the raw solution supply member in the thickness direction of the frame body by a locking means. did. That is,
Cloths are arranged on both sides of a plate consisting of a frame body, and a stock solution supply member having a stock solution supply port communicating with the stock solution port of each cloth is arranged within the thickness dimension of the frame body of the plate,
and fixing the periphery of the undiluted solution port provided at the upper or lower part of each of the cloths around the undiluted solution supply port of the undiluted solution supplying member to suspend and support the undiluted solution supply member on both of the cloths, and the frame of the plate. A locking means is used to lock the frame-side part of the stock solution supply member to the upper or lower part of the undiluted solution supply member, while a locking means is used to lock the part of the stock solution supply member on the side opposite to the frame body from each cloth supporting the stock solution supply member. It is configured to include a protrusion that protrudes from the side of the adjacent plate and can come into contact with the opposing cloth.

Effects and Effects of the Invention In the above configuration, the stock solution supply member is fixed around the stock solution port of each cloth, and the stock solution supply member is suspended and supported on the cloth, and the stock solution supply member is locked to the frame of the plate to Since the movement of the stock solution supply member in the thickness direction of the frame is restricted, the stock solution supply port of the stock solution supply member, which is the stock solution supply port on the frame side, can be aligned with the stock solution port of the cloth. It is possible to reliably prevent misalignment between the two even if they expand or contract significantly. In addition, the stock solution supplying member can reinforce the stock solution opening of the cloth, making the stock solution port of the cloth and its surrounding area stable, so that even when the stock solution supply pressure is applied to the surrounding area of the stock solution port of the cloth, the stock solution opening of the cloth can be stabilized. The parts don't move much. Therefore, it is possible to effectively prevent the opening of the stock solution from closing due to the shaking of the cloth, and the mesh of the cloth does not become large.
Moreover, the cloths around the stock solution supply ports of a pair of adjacent plates do not come into close contact with each other and close the passage from the stock solution port toward the chamber.

Examples Examples according to the present invention will be described in detail below with reference to FIGS. 1 to 11.

As shown in FIGS. 1 and 2, the overboard 1 according to this embodiment is constructed by disposing cloths 2, 2 on both sides of a first board 4 consisting of a thick frame 4a. A stock solution supply member 11 suspended and supported under both the cloths 2, 2 is disposed within the thickness of the frame 4a, and the stock solution supply member 11 is connected to the stock solution port 2a of each cloth 2 for supplying stock solution. A stock solution supply plate 5 having a port 5a and support plates 6, 6 fixed on both sides thereof.
In addition, the periphery of the undiluted solution port 2a of each cloth 2 is fixed around the undiluted solution supply port 5a of the undiluted solution supply plate 5, and the undiluted solution supply member 11 is fixed to the lower part of the frame 4a of the first plate 4. while the frame side of the undiluted solution supply member 11 is locked by the locking means.
A plurality of protrusions 7, . A pair of cloths 2 are sandwiched between adjacent plates 3 in contact with 3, and a gap 10 is formed between the two. The locking means forms a semicircular curved portion 4c at the lower part of the frame 4a of the first plate 4, and connects the stock solution supply member 11 to the stock solution supply plate 5 having a circular stock solution supply port 5a and both sides thereof. The supporting plates 6, 6 are fixed to the curved portion 4c of the lower part of the frame of the first plate 4.
is placed on the inner inclined surface of the undiluted solution supply member 11 to restrict movement of the stock solution supply member 11 in the thickness direction.

This passing plate 1 is a passing plate without the stock solution supply member 11, that is, a second passing plate consisting of a thin frame 3a.
A filter press is constructed by arranging a large number of cloths 2, 2 on both sides of a plate 3 alternately along the front and back direction between the front and rear stands of a well-known filter press. In this filter press, when all the plates 4, . . . , 4; 3, . . . The stock solution supply ports 3f of the two plates 3 communicate in a substantially straight line, and the stock solution is supplied between the pair of cloths 2 and 2 between the plates 3 and 4 through the stock solution supply ports 2a, 5a, and 3f. I try to do this.

As shown in FIG. 3, the first plate 4 consists of a frame 4a formed into a rectangular shape from a bar with a pentagonal cross section, and has inclined surfaces 4f on its inner surface that are inclined from the center in the thickness direction to both sides. has. The above frame body 4a
Both outer surfaces of the filter press are provided with gripping portions 4b, 4b, respectively, which are slidably placed on a pair of side beams (not shown) extending between the front and rear stands of the filter press to suspend and support each plate. A curved portion 4c curved downward in an arc shape is formed in the center of the lower part of the frame of the first plate 4, and a semicircular notch 4d is formed in the upper portion of the curved portion 4c. A plurality of liquid discharge holes 4e, . . . , 4e penetrating downward from the inside of the frame are formed in the frame portions on both sides of the curved portion 4c. FIGS. 2 and 5 show a state in which the first plates 4 and the second plates 3 are arranged alternately and both plates 4 and 3 are tightened.

On the other hand, the second plate 3, as shown in FIG. It has a surface 3h. On both outer surfaces of the frame 3a, gripping portions 3b are slidably placed on a pair of side beams (not shown) extending between the front and rear stands of the filter press to suspend and support each second plate 3. , 3b, a curved part 3c curved downward in an arc shape is formed in the center of the lower part of the frame, and a small curved part 3c having a narrower width than the curved part 3c is formed on the upper side continuously from the curved part 3c. Part 3
d, and both the curved portions 3c and 3d form an annular portion 3e. A circular stock solution supply port 3f is provided through the center of the annular portion 3e. Said ring part 3
A plurality of liquid discharge holes 3g, . . . , 3g penetrating downward from the inside of the frame are formed in the frame portions on both sides of e.

As shown in FIG. 6, the stock solution supply plate 5 is made of a rigid disk made of metal or synthetic resin, and has a stock solution supply port 5a formed through the center thereof. Five screw holes 5b are formed through this disc at predetermined intervals. Two screw holes 5b on the upper side of this stock solution supply plate 5,
5b, a truncated conical protrusion 7 is attached to each of the protrusions 7 through the cloth 2 by screwing in a bolt 8.
The cloth 2 is sandwiched between the stock solution supply plate 5 and the stock solution supply plate 5. When the plates 4 and 3 are mutually tightened, each of the protrusions 7 is connected to the adjacent second
It comes into contact with the small curved portion 3d of the plate 3 via the cloth 2 to prevent the stock solution supply plate 5 from swinging much within the frame 4a of the first plate 4, and
A stock solution supply gap 10 is formed between the pair of cloths 2, 2 between the plates 4, 3 to facilitate supply of the stock solution between the cloths 2, 2. Therefore, the dimensions of each of the protrusions 7 in the frame thickness direction are as follows:
7 is the same as the thickness direction dimension of the frame body 4a, or the total dimension is smaller than the thickness direction dimension of the frame body 4a.

Each support plate 6 arranged on both sides of the stock solution supply plate 5 consists of a semicircular plate, as shown in FIG.
The semicircular notch 6a at the center of the upper edge in the figure has a shape that follows the lower edge of the stock solution supply port 5a of the stock solution supply plate 5, and tapers at the periphery from the back side facing the stock solution supply plate 5 toward the front side. form. This support plate 6 also has three screw holes 5 on the lower side of the stock solution supply plate 5.
Three screw holes 6 communicating with b, 5b, 5b, respectively
b, 6b, 6b are penetrated. Both support plates 6, 6 mentioned above
is attached to the stock solution supply plate 5 by screwing bolts 8 into each screw hole 6b, leaving a predetermined interval on both sides of the stock solution supply plate 5, and with the back surface of each support plate 6 positioned on the stock solution supply side. Then, the stock solution supply plate 5
When both the supporting plates 6, 6 are attached to the undulating solution supply plate 5, as shown in FIG.
The undiluted solution supply member 11 is placed on a pair of inclined surfaces 4f, 4f continuous to a chevron shape of the lower curved portion 4c of the frame 4a of the plate 4, and positions the undiluted solution supply plate 5 on the first plate 4. is made difficult to swing in the plate thickness direction within the frame 4a.

Further, each of the cloths 2 is arranged on both sides of each of the plates 4 and 3, and suspends and supports the stock solution supply member 11 below the frame of the first plate 4. That is, in the pair of cloths 2, 2 sandwiching the first plate 4, the portions of both cloths 2, 2 near the stock solution ports 2a, 2a are inserted into the stock solution supply port 5a of the stock solution supply plate 5 and connected. Coating the inner surface of the stock solution supply port 5a,
A circular stock solution opening 2a communicating with the stock solution supply port 5a is formed in the cloth 2. The area around the stock solution supply port of each cloth 2 is sandwiched between the stock solution supply plate 5 and each support plate 6, and the stock solution supply plate 5 and each support plate 6 are fixed to the cloths 2, 2 with the bolts 8, . . . , 8. Then, each board 4, 3
The stock solution supply member 11 is suspended and supported between a pair of cloths 2, 2 sandwiching the undiluted solution supply member 11. In addition, a cloth 2 is also inserted between each protrusion 7 on the upper part of the stock solution supply plate 5 and the stock solution supply plate 5, and is fixed with a bolt 8, so that the stock solution supply plate 5 can be more stably attached to each cloth 2. Attach. On the other hand, the second
In a pair of cloths 2, 2 sandwiching the plate 3, a portion of each cloth 2 near the stock solution port 2a is inserted into and connected to the stock solution supply port 3f of the second plate 3 to connect the stock solution supply port 3f.
The inner surface of the cloth 2 is covered with the above stock solution supply port 3f.
A circular stock solution inlet 2a communicating with is formed.

According to the above structure, in the well-known filter press, a large number of first plates 4 and second plates 3 are arranged alternately between the front and rear stands, and a pair of cloths 2, 2 are arranged between each adjacent plate 4, 3. Place each
A filter press is constructed by alternately arranging a large number of over plates 1 in this embodiment and over plates without stock solution supply member 11. When filtering the stock solution in this filter press, first move the movable plate (not shown) to the front stand side, and then move all the plates 4,...
4; Tighten 3,..., 3 to the front stand side. In this state, the frame 4 inside the frame 4a of the first plate 4
The stock solution supplying member 11 is connected to the cloth 2 within the thickness dimension a.
is suspended and supported by a pair of support plates 6, 6.
are placed on the inclined surfaces 4f, 4f of the curved portion 4c of the lower part of the frame body of the first plate 4, and movement in the front-rear direction is restricted. Then, from the front stand side, for example, apply the stock solution to the stock solution port 2a of the cloth 2, the stock solution supply port 5a of the stock solution supply plate 5 of the first plate 4, the stock solution ports 2a, 2a of the pair of opposing cloths 2, 2, The solution is passed through the stock solution supply port 3f of the frame 3a of the plate 3, and the stock solution ports 2a, 2a of the opposing pair of cloths 2, 2 in this order, respectively, and is formed between the opposing pair of cloths 2, 2 by each protrusion 7. During this time, the stock solution is supplied from 10 into the chamber 9 between the two cloths 2, and the undiluted solution is filtered through each cloth 2.

According to the above embodiment, the stock solution supply member 11 is fixed and suspended around the stock solution opening of each cloth 2, and the stock solution supply member 11 is locked to the frame 4a of the plate 4, so that Since the movement of the stock solution supply member 11 in the thickness direction is restricted, it is possible to ensure that the stock solution supply port 5a of the stock solution supply member 11, which is the stock solution supply port on the frame side, and the stock solution port 2a of the cloth 2 are aligned. Therefore, even if the cloth 2 expands and contracts significantly, misalignment between the stock solution port 2a of the cloth 2 and the stock solution supply port 5a of the stock solution supply member 11 can be prevented. Further, the area around the undiluted solution opening 2a of each cloth 2 is fixed to the undiluted solution supply plate 5 with bolts 8, and the pair of support plates 6, 6 fixed to the undiluted solution supply plate 5 are connected to the first
Slanted surfaces 4f, 4f of the curved portion 4c of the frame 4a of the plate 4
Since the undiluted solution supply plate 5 is placed on top of the cloth 2 to restrict movement of the undiluted solution supply plate 5 in the front-rear direction, the undiluted solution opening 2a of the cloth 2 and its surrounding area are stabilized, and
Even if the supply pressure of the stock solution acts on the surrounding area of a, this area does not oscillate much. Therefore, cloth 2
It is possible to effectively prevent the closing of the stock solution port 2a due to the swinging of the cloth 2, and the mesh of the cloth 2 is not enlarged, and the cloths 2, 2 around the stock solution supply port of a pair of adjacent plates 4, 3 are tightly connected to each other. There is no possibility that the passage from the stock solution port 2a toward the chamber 9 will be closed due to close contact. In addition, the stock solution supply member 11 is configured such that the pair of support plates 6, 6 are placed on the inclined surfaces 4f, 4f of the curved portion 4c of the frame 4a of the first plate 4, and the stock solution supply port 5a of the stock solution supply plate 5 is and the semicircular notch 6a of each support plate 6, and the notch 4 of the curved portion 4c of the frame 4a of the first plate 4.
It is only necessary to roughly match d, and the stock solution supply member 1
1 positioning can be done easily. Further, when an excessive external force acts on the stock solution supply member 11, the curved portion 4c of the frame 4a of the first plate 4 of the stock solution supply member 11
Since the undiluted solution supplying member 11 swings freely together with the cloth 2, the frame 4a and the cloth 2 will not be damaged due to overload.
Also, the cloths 2, 2 facing each other with the plate 4 in between
Since the stock solution supply plate 5 is sandwiched between them, gaps tend to occur between both cloths 2, 2, and each cloth 2
It is possible to improve the drainage of the liquid that has passed through.

Note that the present invention is not limited to the above-mentioned embodiments, and can be implemented in various other embodiments.

For example, the cross-sectional shape of the frame 4a of the first plate 4 is not limited to the pentagonal shape described above, but as shown in FIG.
The locking means may be formed with a recess 4h having a rectangular cross section as shown in FIG. That is, by fitting the stock solution supply plate 5 into each of the recesses 4g and 4h, the stock solution supply member 11 is locked to the frame 4a, and movement of the stock solution supply plate 5 in the thickness direction of the frame 4a is restricted. You can do it like this. Further, as shown in FIG. 11, the frame 4a has a rectangular cross section, and a convex portion 4i that protrudes upward is formed in the center thereof.Although not specifically shown, the lower end of the stock solution supply plate 5 is It may be formed into two forks, and the forked portion of the stock solution supply plate 5 may be locked to the convex portion 4i to constitute a locking means.

Alternatively, the stock solution supply member 11 may be directly locked to the lower part of the frame without forming the curved portion 4c on the first plate 4. Further, a large number of only the first plates 4 may be arranged between the front and rear stands.

Further, the stock solution supply plate 5 is not limited to the annular shape, but may have any shape. In addition, each of the support plates 6
The shape is not limited to a semicircular shape, but may be any shape. Further, the stock solution supply plate 5 is not limited to a plate material, but may be made of a stiff cloth. In this case, the stock solution supply plate made of fabric can improve the ability to drain the liquid. Further, the stock solution supply member 11 includes a first
It is not limited to the lower part of the frame of the plate 4, but is suspended and supported on the upper part of the frame by cloths 2, 2, and is locked to the frame 4a by the locking means to move the frame 4a in the thickness direction. may be regulated. Further, the support plate 6 may be provided only on the stock solution press-in side with respect to the stock solution supply plate 5.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view showing the essential parts of the overplate according to an embodiment of the present invention, and FIG. 2 is a front and rear view of the overplate according to the above embodiment and another overplate not equipped with a stock solution supply member. FIG. 3 is a front view of the overboard plate according to the above embodiment, and FIG. 4 is a cross-sectional side view showing a state in which the overboard plates are arranged alternately along the stand direction and tightened. FIG. 4 is a front view of the overboard plate according to the above embodiment. A front view of the plate, FIG. 5 is a sectional view of the main part of the frame portion in a state where the over plate according to the above embodiment and the other over plate are tightened, and FIGS. 6 and 7 are respectively the concentrate supply plate of the concentrate supply member. 8 is a side view of the stock solution supply member, and FIG. 9 is a cross-sectional view of essential parts showing the arrangement of the frame of the first plate and the stock solution supply member according to another embodiment. , 10 and 11 are sectional views of main parts of the frame of the first plate according to still other embodiments. 1... Passing plate, 2... Cloth, 2a... Stock solution port,
3... Second plate, 3a... Frame body, 3b... Gripping part, 3c... Curved part, 3d... Small curved part, 3e...
...Annular part, 3f...Stock solution supply port, 3g...Liquid discharge hole, 3h...Slanted surface, 4...First plate, 4a...
...Frame body, 4b...Discharge part, 4c...Curved part, 4d
...Notch, 4e...Liquid discharge hole, 4f...Slanted surface, 4g, 4h...Concave portion, 4i...Protrusion, 5...
Stock solution supply plate, 5a...Stock solution supply port, 6...Support plate, 6a...Notch, 7...Protrusion, 8...Bolt,
9... chamber, 10... chamber, 11... stock solution supply member.

Claims (1)

[Claims] 1. Cloths 2, 2 are placed on both sides of the plate 4 consisting of the frame 4a.
A stock solution supply member 11 having a stock solution supply port 5a communicating with the stock solution port 2a of each cloth 2 is arranged within the thickness dimension of the frame 4a of the plate 4, and the stock solution supply member 11 has a stock solution supply port 5a communicating with the stock solution port 2a of each cloth 2. A stock solution port 2 is provided at the top or bottom of each of the cloths 2 above around the supply port 5a.
The undiluted solution supplying member 11 is suspended and supported on both the cloths 2, 2 by fixing the periphery of the undiluted solution supplying member 11 on the upper or lower part of the frame 4a of the plate 4. On the other hand, a portion of the stock solution supply member 11 on the side opposite to the frame body protrudes toward the adjacent plate side from each cloth 2 that supported the stock solution supply member 11 and is capable of contacting the opposing cloth 2. An overplate characterized in that it is provided with a protrusion 7. 2 The stock solution supply member 11 includes a stock solution supply plate 5,
Support plates 6 fixed to both sides of the stock solution supply plate 5, respectively.
The overplate according to claim 1, comprising: 3. The stock solution supply member 11 is a pass plate according to claim 2, which comprises a circular stock solution supply plate 5 and a semicircular support plate 6. 4 The locking means is formed by forming the lower part of the frame 4a of the plate 4 into a pentagonal cross section, and placing the support plates 6, 6 on both sides of the stock solution supply member 11 on the lower part of the frame. The overplate according to claim 2 or 3. 5 The plate 4 on which the stock solution supply member 11 is placed
A downwardly curved curved portion 4 is provided at the center of the lower part of the frame.
The overplate according to claim 4, which forms c. 6. The locking means is configured such that recesses 4g and 4h are formed in the lower part of the frame of the plate 4, and the stock solution supply member 11 is fitted and locked therein.
The overplate according to any one of paragraphs 1 and 2. 7. The locking means includes a projection 4i formed at the lower part of the frame of the plate 4, and the stock solution supply member 11 is locked to the projection 4i. Overboard of crab description.