JPH0340326Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention suspends and supports a gap retaining member between a pair of filter cloths arranged between adjacent filter plates in a filter press through the filter cloths. The present invention relates to a gap maintaining device between filter cloths of a filter press that maintains a gap at a constant interval between the pair of filter cloths between the plates by the gap maintaining member.

BACKGROUND ART Hitherto, various structures of gap maintaining devices between filter cloths of this type of filter press are known. For example, a filter plate is constructed from only a frame body, a gap retaining member is fixed to a predetermined location of a pair of filter cloths located between adjacent filter plates, and the gap retaining member is fixed between a pair of filter cloths between adjacent filter plates. Some filter cloths are configured to abut against each other to form a constant gap between the pair of filter cloths.

Problem to be Solved by the Invention However, in the structure described above, each gap holding member is fixed to the filter cloth and cannot be removed, and the height, shape and shape of the gap holding member are adjusted depending on the filtration pressure. There was a problem that the materials could not be replaced.

Therefore, an object of the present invention is to solve the above-mentioned problem by creating a gap between filter cloths of a filter press, which allows the height, shape, material, etc. of the gap holding member to be easily replaced as needed. An object of the present invention is to provide a holding device.

Means for Solving the Problems In order to achieve the above object, the present invention is configured such that the gap holding member is detachably suspended and supported at a predetermined location of the filter cloth. That is, a filter plate is formed from the frame body, and a gap retaining member is placed between a pair of filter cloths arranged between adjacent filter plates, with each of the filter cloths interposed therebetween, so as to face the filtration space in the frame of the filter plate. The space between the filter cloths of the filter press is suspended and supported so that the filter cloths are positioned at the same position, and the adjacent gap holding members abut each other to maintain a constant gap between the pair of filter cloths between the adjacent filter plates. In the gap retaining device, the gap retaining member includes a connecting portion that is removably suspended from a predetermined location of the filter cloth, and a connecting portion that is disposed at a predetermined location of the connecting portion and located between and adjacent to the pair of filter cloths. and a protrusion that can come into contact with the gap holding member.

In the above configuration, the protruding portions of the gap holding members suspended and supported by each of the pair of filter cloths between the adjacent filter plates may be configured to face each other and come into contact with each other.

In the above configuration, the connecting portion may be inserted into the stock solution supply port of the filter cloth and detachably suspended and supported at a predetermined location around the stock solution supply port.

Effect of the invention In the above structure, a protrusion is arranged at a predetermined location of the filter cloth via a connecting part, and the opposing protrusions are brought into contact with each other between the opposing filter cloths between adjacent filter plates. Maintain regular gaps between fabrics. When replacing the gap holding member as necessary, for example, depending on the filtration pressure, the gap holding member is removed from the filter cloth and a desired gap holding member is attached to the filter cloth instead. Further, when the gap holding member is not required, it is removed from the filter cloth.

In addition, in the case where the connecting part is inserted into the stock solution supply port of the filter cloth and attached detachably, the protruding part is inserted together with a part of the connection part into the stock solution supply port of the filter cloth, and the area around the stock solution supply port is removed. The gap holding member can be removably suspended and supported at a predetermined location. When removing such a gap holding member from the filter cloth, it is sufficient to pull out the protruding portion together with a portion of the connecting portion from the stock solution supply port.

Effects of the Invention According to the above configuration, the gap holding member is removably suspended and supported at a predetermined location of the filter cloth to support the protrusion, so that the gap holding member can be attached to and removed from the filter cloth. If necessary, you can remove the gap retaining member from the filter cloth and perform filtration without attaching the gap retaining member to the filter cloth, or replace the gap retaining member attached to the filter cloth by adjusting the material and height of the protrusion. It can be replaced with a gap retaining member having a different size, shape, etc. For example, if the protruding part is inserted into the stock solution supply port of the filter cloth together with a part of the connecting part and suspended around the stock solution supply port, the gap holding member can be easily attached to or removed from the filter cloth. Further, since it is not necessary to directly form the gap retaining member on the filter cloth or the filter plate, the structure of the filter cloth and the filter plate is simplified and manufacturing becomes easier. Also,
By arranging the protrusions of the gap retaining members so as to face and abut each other, it is possible to effectively prevent the filter cloth from being biased in the filtration space in the frame of the filter plate due to the supply pressure of the stock solution, etc. can.

Embodiments Hereinafter, embodiments of the present invention will be described in detail based on FIGS. 1 to 5.

As shown in FIGS. 1 to 4, the device for maintaining the gap between the filter cloths of the filter press according to this embodiment supplies the stock solution to the center of the pair of filter cloths 3, 3 between the adjacent filter plates 2, 2. The gap holding member 1 is removably hung at a predetermined location around the opening 3a, and when the filter plates 2,..., 2 are closed, between the pair of filter cloths 3, 3 between the adjacent filter plates 2, 2, The projections 1a of the gap holding member 1 are brought into contact with each other to form a gap at a constant distance between the filter cloths 3, 3. Each of the filter plates 2 described above is composed of a frame body 2a.

The gap holding member 1 is made of a molded article of hard synthetic resin, for example polypropylene resin. The gap retaining member 1 is not limited to the resin described above.
It may be made of hard rubber, polyethylene resin, polystyrene resin, vinyl chloride, or the like. Further, the gap holding member 1 may be made of metal, but if it is made of metal, there is a risk of damaging the filter cloth, so
Hard synthetic resin is preferable to metal.

The gap holding member 1 includes a pair of belt-shaped support plates 1
A belt-shaped connecting portion 1d formed by integrally connecting the connecting portions j and 1j into a U-shape by a curved portion 1d, and a pair of truncated conical protrusions arranged at predetermined locations on each support plate 1j of the connecting portion 1d. It consists of parts 1a and 1a.

The connecting portion 1d is suspended around the undiluted solution supply port by inserting one support plate 1j into the undiluted solution supply port 3a of the filter cloth 3.

Further, the height dimension of the protruding portion 1a is the filter plate 2,
..., 2, each protrusion 1a of the opposing gap holding members 1, 1 disposed at a position facing the filtration space 2b of the frame 2a of the adjacent filter plates 2, 2.
The size should be such that they touch each other. Each protruding portion 1a is removably attached to the connecting portion 1d by combining with a locking member 1b. That is, each of the protrusions 1a has a protrusion 1i having a semicircular longitudinal cross section in the axial direction, which is inserted into the fitting hole 1h of the support plate 1j, on the back surface of the protrusion 1a, for example, on the upper side thereof, and an axially extending protrusion 1i on the lower side thereof. A recess 1g having a semicircular longitudinal section is formed. In addition, the locking member 1
b has a protrusion 1f at its lower part that is inserted into the fitting hole 1h of the support plate 1j and fitted into the recess 1g of the protrusion 1a. Therefore, the protrusion 1i of the protrusion 1a and the protrusion 1f of the locking member 1b
are inserted into the fitting holes 1h from both the front and back surfaces of the support plate 1j, and the tip of the protrusion 1f of the locking member 1b is fitted into the recess 1g of the protrusion 1a,
The base of the protrusion 1f and the protrusion 1i of the protrusion 1a fit into the fitting hole 1h of the support plate 1j, thereby fixing the protrusion 1a to the support plate 1b. When removing the protruding part 1a, it can be easily removed from the support plate 1j by pulling the protruding part 1a and the locking member 1b in a direction away from each other. In the state in which the protruding parts 1a, ..., 1a are removably fixed to the connecting part 1d, each protruding part 1a is suspended from the protruding part 1a of the gap holding member 1 that is suspended and supported by the filter cloth 3 of the adjacent filter plate 2. It is in a state where it is facing. In addition, in order to ensure that the protrusions 1a and 1a abut against each other, one of the opposing protrusions 1a is formed into a truncated cone shape opposite to the other protrusion 1a to reduce the opposing area. Make it bigger;
It is also possible to configure the two protrusions 1a, 1a to surely butt against each other.

According to the above configuration, in the filter cloths 3, 3 in which the surroundings of the stock solution supply ports are connected to each other, the two protrusions 1a, 1a are supported through the connected stock solution supply ports 3a. A part of the connecting portion 1d is inserted, the gap holding member 1 is suspended and supported by the filter cloths 3, and the gap holding member 1 is located at a position facing the filtering space 2b of the frame 2a of the filter plate 2. filter plate 2,
..., 2, the opposing protrusions 1a, 1a of the gap retaining members 1, 1 come into contact between the pair of filter cloths 3, 3 between the adjacent filter plates 2, 2, and the protrusions 1
A certain gap is provided between the filter plates 2, 2 in accordance with the height dimension of a.
It is held between the pair of filter cloths 3, 3 to ensure that a filter chamber is formed and that the stock solution enters the filter chamber smoothly.

On the other hand, when removing the gap holding member 1 from the filter cloth 3, by pulling out a part of the connecting portion 1d having the two protrusions 1a, 1a from the stock solution supply port 3a of the filter cloths 3, 3, the gap holding member 1 can be removed. It can be removed from the filter cloth 3.

According to the above embodiment, the gap holding member 1 is
A part of the connecting portion 1d having the protruding portions 1a, 1a is inserted into the stock solution supply port 3a of the filter cloth 3, and the connecting portion 1
d is removably hung and supported around the stock solution supply port, while the gap retaining member 1 can be removed from the filter cloth 3 by pulling out the connecting portion 1d from the stock solution supply port 3a. It can be easily attached and detached. Therefore, if necessary,
For example, depending on the filtration pressure, etc., the gap holding member 1 may be removed from the filter cloth 3 to perform filtration without attaching the gap holding member 1 to the filter cloth 3, or the gap holding member 1 attached to the filter cloth 3 may be removed. The material of the protrusion 1a,
It is possible to replace the gap holding member 1 with a different height dimension, shape, etc. In addition, the gap holding member 1
Since it is not necessary to form the filter plate 2 or the filter cloth 3 directly, the structure of the filter plate 2 and the filter cloth 3 is simplified and manufacturing becomes easier. In addition, each of the above-mentioned gap holding members 1
The protrusions 1a of the filter cloths 3,..., are disposed so as to face each other, so that the filter cloths 3, . . .
3 can be effectively prevented from shifting along the thickness direction of the filter plate (filter plate mold closing direction) within the filter space 2b of the frame body 2a of the filter plates 2, . . . , 2.

It should be noted that the present invention is not limited to the above-mentioned embodiments, but can be implemented in various other forms as exemplified below. For example, the shape of the gap holding member 1 and the method of attaching the protruding portion 1a to the connecting portion 1d are not limited to the above embodiments, and may be implemented in various ways. For example, as shown in FIG. 5, the locking member 1b is constituted by a truncated cone-shaped locking member 5, which butts against each other inside the connecting portion 1d with the filter cloths 3, 3 interposed therebetween, Support plate 1 of connecting part 1d
It is also possible to effectively prevent filtrate discharge performance from becoming poor due to filtration pressure or the like causing comrades j and 1j to come into close contact with each other. Moreover, without providing the above-mentioned locking member, the protrusion 1f of the protruding portion 1a can be simply connected to the connecting portion 1d.
It can also be attached by simply fitting it into the fitting hole 1k of. Further, while fixing the cloth to the opposing surfaces of the filter cloth 3, an inverted J-shaped locking protrusion is formed at the upper end of the plate-like connecting part to which the protrusion 1a is attached, and the locking protrusion is attached to the cloth. The protruding portion 1a may be removably attached to the filter cloth 3 by locking. In addition, the number, height dimension, shape, etc. of the protrusions 1a in each of the above-mentioned gap retaining members 1 are arbitrary, and each protrusion 1a is made into a hollow body, and each protrusion 1a of the adjacent gap retaining members 1, 1. It may be possible to absorb shocks caused by contact. In addition, the stock solution supply port 3 can be used not only in the vertical direction but also on both sides along the horizontal direction with respect to the stock solution supply port 3a of the filter cloth 3.
The protruding portion 1a may be provided at any location around a. Alternatively, the filter cloth 3 may be provided with a plurality of stock solution supply ports 3a, . . . , 3a, and the gap holding member 1 may be attached to all or some of the stock solution supply ports. Further, a filtrate discharge groove may be formed on either the surface of the connecting portion 1d provided with the protruding portion 1a or the back surface on the filter cloth side, or either one of the surfaces. Alternatively, the protrusions 1a may not face each other, but may directly abut the connecting portions 1d of adjacent gap retaining members 1 to form a gap between the pair of filter cloths 3, 3.

[Brief explanation of the drawing]

Figures 1, 2, 3, and 4 are enlarged front views of essential parts of a gap retaining member of a gap retaining device between filter cloths of a filter press according to an embodiment of the present invention attached to a filter cloth, respectively; A sectional side view, a partially cutaway front view, a sectional side view, and FIG. 5 are side views of a gap retaining member according to another embodiment. 1...Gap holding member, 1a...Protrusion part, 1b,
5...Locking member, 1d...Connecting portion, 1e...Curved portion, 1f...Protrusion, 1g...Recess, 1h...Fitting hole, 1i...Protrusion, 1j...Support plate, 2... Filter plate, 2a... frame body, 2b... filtration space, 3... filter cloth, 3a... stock solution supply port.

Claims (1)

[Claims for Utility Model Registration] (1) The filter plate 2 is constructed from the frame 2a, and each of the filter cloths 3 is interposed between a pair of filter cloths 3 disposed between the adjacent filter plates 2, 2. The gap holding member 1 is suspended and supported so as to be positioned opposite to the filtering space 2b in the frame 2a of the filter plate 2, and the adjacent gap holding members 1 are brought into contact with each other, so that the space between the adjacent filter plates 2 is In the gap maintaining device between the filter cloths of the filter press, which maintains a constant gap between the pair of filter cloths 3, the gap maintaining member 1 is removably suspended and supported at a predetermined location of the filter cloth 3. a connecting portion 1d,
A filter press characterized in that a protruding part 1a is arranged at a predetermined position of the connecting part 1d and is located between the pair of filter cloths 3 and can come into contact with the adjacent gap holding member 1. Gap retaining device between filter cloths. (2) A pair of filter cloths 3 between the adjacent filter plates 2, 2,
3. A gap maintaining device between filter cloths of a filter press according to claim 1, wherein the protruding portions 1a of the gap maintaining members 1, which are suspended and supported by each of the filter cloths of the filter press, are arranged to face each other and come into contact with each other. (3) The connecting portion 1d is inserted into the stock solution supply port 3a of the filter cloth 3 and is removably suspended and supported at a predetermined location around the stock solution supply port 3a. A gap maintaining device between filter cloths of a filter press according to any one of Items 1 and 2.