JPH07213809A - Device for supporting filter cloth on plate opening in filter press - Google Patents

Abstract

PURPOSE:To firmly support a filter cloth hanging bar and a filter cloth on plate opening after filter work is finished by fitting a filter cloth hanging bar receiving member to the inside of both the right and left leg parts of a moving body being energized upwards. CONSTITUTION:A filter cloth hanging bar receiving member 20 is fitted at a prescribed height to the inside of both the right and left leg parts of a circular moving body, almost horizontally and energized upwards by spring force. In this way, when filter plates 1, 1 are opened one by one to remove cake after filtration work is finished, filter cloth hanging bar receiving members 9, 9 and filter cloths 3, 3 are firmly supported by both the right and left receiving members 20. Therefore, for example, even in the case cake is stuck to the filter cloths 3, 3, coil-like hanging springs 11, 11 are not pulled and extended downwards by the weight of the stuck cake. Thus, the filter plates 1, 1 are prevented from being inclined or moved to an incorrective position in the inside.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter cloth supporting device when a plate is opened in a filter press.

[0002]

2. Description of the Related Art A conventional filter press is shown in FIG.
As shown in Fig. 5, the front and rear filtration surfaces of each filter plate (51) slidably held by the pair of left and right side plates (52) (52) are respectively the filter cloth (53).
(53), the left and right ends of the filter cloth suspension rod (54) at the upper edge of each filter cloth (53) are coiled suspension springs (55) (55)
It was hung by the suspension member (56) (56) by. Then, the filter plates (51) (51) adjacent to each other are connected to each other by the connecting members (57) (57) at the left and right ends of the filter cloth hanging rods (54) (54) which are opposed to each other and which are chains of a predetermined length. It was connected. Further, the left and right side plates (52), (52) slidably hold a portal-shaped moving body (59) when viewed from the front side having a filter cloth vibrating device.

After the press filtration by the filter press is completed, the filter plates (51), (51) adjacent to each other are used to remove cakes (slags) (58) (58) in the filter chambers between them. The filter plates (51) are opened backward one by one by the operation of a feeding mechanism (not shown), but the lengths of the connecting members (57) (57) are the same as those of the adjacent filter plates (51) (51). Since it is shorter than the opened interval of the filter cloth, the upper ends of the filter cloths (53) and (53) facing each other are pulled out inward, and both filter cloths (53) and (53) are inclined in a substantially C shape when viewed from the side. Was given. At this time, the portal-shaped moving body (59) having the filter cloth vibrating device was positioned at the center between the opened filter plates (51) and (51). Then, filter cloths (53) (5
3) The left and right ends of the filter cloth suspension rods (54) (54) at the upper end are tapped by the vibration hammer (not shown) of the filter cloth vibrating device, and the cakes (58) (58) are shaken off and removed. It had been. afterwards,
By the operation of the filter plate feeding mechanism, the next filter plate (51) is further pulled back and opened rearward, and similarly, for each open plate of the filter plate (51), the cake (58) (58) is shaken off. The removal work is automatically repeated and the filter cloths on the front and back sides of each filter plate (51) are removed.
Cakes (58) and (58) adhering to (53) and (53) were sequentially removed.

[0004]

However, according to such a conventional filter press, the cake (58) (58)
If it is not sticky, the cake in the filter chamber (58) (58)
Since most of them fall at the same time as the open plate due to their own weight, there is no problem, but if the cake (58) (58) is sticky, even if the plate is opened, the cake will remain on the filter cloth (53) (53). (58) (58) does not fall until it adheres, and as a result, as shown in the figure, the weight of the cake (58) (58) causes the coil-shaped suspension springs (55) (55)
Are pulled strongly downward and extend, and filter plates (5
1) (51) is tilted so that their tops are inward,
Alternatively, there is a problem that the filter plates (51) (51) themselves are moved to the inner side and the positions are displaced, so that the filter plate feeding mechanism malfunctions, and the efficiency of the filtering operation by the filter press decreases.

The object of the present invention is to solve the above-mentioned problems of the prior art, and to firmly support the filter cloth suspension rod and the filter cloth at the time of opening the plate after the completion of the filtration operation, and thus, for example, to prevent stickiness. Even if the cake that it has adheres to the filter cloth, the hanging spring does not extend downward due to the weight of the adhered cake, and it is possible to prevent the filter plate from tilting or shifting inward. By doing so, it is possible to prevent the malfunction of the filter plate feed mechanism from occurring, and by doing so, it is possible to ensure the operation of the filter cloth vibrating device and the filter cloth cleaning device for each open plate of each filter plate. It is an object of the present invention to provide a filter cloth supporting device at the time of opening a plate in a filter press, which can remove the cake very quickly and surely, and can greatly improve the efficiency of the filtering operation of the filter press.

[0006]

In order to achieve the above object, the present invention is slidably held by a pair of left and right side plates through a hanging hand and both front and rear filtering surfaces are covered with a filter cloth. A large number of filter plates, a filter cloth suspension rod attached to the upper edges of both front and rear filter cloths, and a suspension spring attached to the upper end of the filter plate and suspending the left and right ends of the filter cloth suspension rod. , A connecting member for connecting both ends of the filter cloth suspension rods of the adjacent filter plates facing each other, and a gate-shaped moving body in which both left and right legs are attached to both side plates so as to be movable back and forth. In the existing filter press, the filter cloth hanging rod receiving members are attached to a predetermined height inside the left and right legs of the moving body in a substantially horizontal state and urged upward by the spring force, respectively. After the end of, the filter plate opened to the back and this A filter cloth supporting device at the time of opening a plate in a filter press, in which the left and right ends of the filter cloth suspension rod at the upper end of the filter cloth that covers the filtering surfaces of the facing filter plates are supported by these receiving members. It is a summary.

[0007]

In the above filter press, the filter cloth hanging rod receiving members are attached to a predetermined height inside the left and right legs of the gate-shaped moving body in a substantially horizontal state and urged upward by the spring force. Therefore, after the filtration work is completed,
When removing the cake by opening the filter plates one by one, the left and right ends of the filter cloth suspension rod at the upper end of the filter cloth that covers the filtering surfaces of the filter plate that is opened backward and the filter plate that faces the filter plate are removed. It is supported by these receiving members. Therefore, these filter cloth suspension rods and filter cloths can be firmly supported by both the left and right receiving members. For example, even when the cake has adhesiveness and adheres to the filter cloth, Since the coil-shaped suspension spring is not pulled downward and stretched due to the weight of the attached cake, it is possible to prevent the filter plate from tilting or being inwardly displaced. Therefore, it is possible to prevent the occurrence of malfunction of the filter plate feeding mechanism, which ensures the operation of the filter cloth vibrating device and the filter cloth cleaning device for each open plate of each filter plate, and makes the cake extremely It can be removed quickly and reliably, and the efficiency of the filtering operation of the filter press can be greatly improved.

[0008]

Embodiments of the present invention will now be described with reference to the drawings.

In this specification, the front and rear and the left and right are based on FIG. 1, the front means the right side of FIG. 1, the rear means the same left side, and the right means the front side and left side of the drawing sheet in the figure. The same shall apply to the back side.

1 to 3, the filter press is attached to a pair of left and right side plates (2) and (2) which are fastened to a first head and a rear head (not shown) via a lifting hand (4) and (4). The filter plate (1) is held slidably back and forth. Both the front and rear filtration surfaces of each filter plate (1) have a stock solution introduction hole (13) near the lower end.
It is covered with a pair of front and rear filter cloths (3) and (3) connected to each other at a part. Further, the left and right side plates (2) and (2) are provided with a filter cloth vibrating device (30) and a filter cloth cleaning device (40), and a gate-shaped moving body (6) viewed from the front is held, and the gate-shaped moving body (6) is held. Both left and right legs (6a) and (6a) of (6) are held by guide rails (7) and (7) of both side plates (2) and (2) via rollers (8) and (8) so that they can move back and forth. There is.

A filter cloth suspension rod (9) is attached to the upper edge of each filter cloth (3), and the left and right ends of the filter cloth suspension rod (9) are provided with filter plates.
(1) A coil-shaped suspension spring (11) attached to the upper end horizontal portion (10a) (10a) of the inverted L-shaped spring suspension member (10) (10) provided in a rising shape on the left and right sides of the upper end portion of (1) Each is suspended by (11).

The left and right ends of the filter cloth suspension rods (9) (9) of the adjacent filter plates (1) (1) facing each other are connected by connecting members (12) (12) made of chains. And connecting members (12)
Each of the filters (12) has a length shorter than the distance between the adjacent filter plates (1) and (1) which are separated from each other. It should be noted that these connecting members (12), (12) may of course be constituted by ropes or the like other than chains.

Next, as shown in detail in FIGS.
The filter cloth suspension rod receiving members (20) (20) are set at predetermined heights inside the front and rear columns (16) (16) that form the left and right legs (6a) (6a) of the gate-shaped moving body (6). Are substantially horizontal and are urged upward by a spring force.

That is, the left and right legs (6
The brackets (22) and (22), which are substantially U-shaped when viewed from the front, are mounted at predetermined heights inside the front and rear columns (16) and (16) that make up (a) and (6a), respectively. Top horizontal part (22a) of (22) (22a) Through hole (24) opened at the tip of (22a)
Into (24), the mounting bars (21) and (21) provided in a hanging shape at both ends of the filter cloth hanging rod receiving members (20) and (20) are respectively inserted, and the bracket upper horizontal portion (22a) ( Coil springs (23) and (23) are fitted over the mounting bars (21) and (21) above 22a), respectively, and the male threads of the lower ends of the mounting bars (21) and (21) are
Double nuts (26) and (26) for retaining are screwed to (21a) and (21a). The vertical part of the bracket (22) (22)
(22b) (22b) is provided with a pair of vertically long slots (27) (27), and the bolts inserted into these slots (27) (27)
(18) The front end of the (18) is the front and rear columns (16) (16) of the moving body leg (6a).
It is screwed into the screw hole of
(22) (22) is mounted so that its height can be adjusted. In addition, in the through holes (24) (24) of the bracket upper horizontal part (22a) (22a),
Cylindrical bushing for better sliding of the mounting bars (21) (21)
(25) and (25) are fitted (see FIG. 6), and the filter cloth hanging rod receiving members (20) and (20) are coil springs (23) fitted and fitted to the mounting bars (21) and (21). ) (23) is always urged upward by the spring force (elastic force).

The left and right legs (6a) and (6a) of the gate-shaped moving body (6)
To the front and rear columns (16) and (16) that make up the
8) and (28) are attached by bolts (18) and (18) so as to be located below the substantially U-shaped brackets (22) and (22), respectively. Approximately inverted L-shaped bracket (28) (28) Upper horizontal part (28
The fixing nuts (29) and (29) are attached to the lower surface of the tips of the (a) and (28a), and the height adjusting bolts (1) are attached to these fixing nuts (29) and (29).
9) (19) is screwed in from below, and the bracket upper horizontal part (28
The upper ends of the bolts (19) and (19) penetrating a) and (28a) are brought into contact with the lower horizontal portions (22c) and (22c) of the substantially U-shaped brackets (22) and (22) from below.

The structure of the filter cloth vibrating device (30) provided on the top of the gate-shaped moving body (6) is as follows.

That is, an air cylinder (31) for raising and lowering a filter cloth striking rod is attached to the top of the gate-shaped moving body (6) with its piston rod (32) facing downward,
At the tip of (32), arm swinging means (33) and lifting body (34)
Through the pair of main filter cloth striking rods (36) (36) with arm (3
5) (35) is installed.

Here, the front and rear arms (35), (35) have a substantially square shape and a substantially inverted shape when viewed from the side, and the main filter cloth striking the lower ends of these arms (35, 35). The rods (36) (36) are mounted horizontally. Further, the front and rear arms (35) (35) are provided with a flexible suspension member (38) made of a strip-shaped stainless steel plate.
The auxiliary filter cloth striking member (37) (37) consisting of (38) and the filter cloth striking weight member (39) (39) at the lower end of the main filter cloth striking rod (36) (3)
6) It is installed so as to be located underneath.

As the weight members (39) (39) for hitting the filter cloth, for example, a metal plate to which synthetic rubber is attached is used.
It may be made of other synthetic resin or metal. Regarding the filter cloth vibrating device (30) as described above,
It is described in detail in the specification of Japanese Patent Application No. 5-60400 filed by the present applicant.

Further, the structure of the filter cloth cleaning device (40) provided on the top of the portal-shaped moving body (6) is as follows.

That is, the washing water supply hose (42) is wound around the hose reel (43) attached to the top of the moving body (6). The tip of the hose (42) is connected to the cleaning pipe (41) through a joint attached to the lower end of the piston rod (45) of the cylinder (44), and the other end of the hose (42) is It is connected to a washing water supply source (not shown).
And by the projection of the piston rod (45) of the cylinder (44), the cleaning pipe (41) is arranged at a predetermined height between the opposing filter cloths (3) and (3) when the plate is opened, and The hose (42) is pulled to the required length, or vice versa, the piston rod
The hose (42) is wound while the cleaning pipe (41) is raised by the withdrawal of the (45).

Although not shown in the drawings, the filter plate feeding mechanism is endless with a filter plate pulling block having a filter plate pulling back claw and a stopping claw, which is made to stand up by the force of a pair of pulling springs, in the middle. It is composed of the endless chain for feeding the filter plate, and the winding parts at both ends of the endless chain are wound around a pair of front and rear chain wheels,
The structure is described in the above-mentioned Japanese Patent Application No. 5-60400.

In the above filter press, in the state after completion of the press filtration work and before the plate opening, as shown in FIG.
Most of the filter cloths (3) (3) between adjacent filter plates (1) (1) are sandwiched by both filter plates (1) (1), and the upper ends of the filter cloths (3) (3) Since the weight of the cake (filter residue) is not applied to the filter cloth suspension rods (9) (9), the left and right ends of the filter cloth suspension rods (9) (9) are coiled suspension springs ( It is suspended by 11) and (11), is separated from the filter cloth suspension rod receiving members (20) and (20) above, and is not supported by the receiving members (20) and (20).

Next, in order to remove the cake (5) in each filter chamber, the filter plates (1) are pulled back one by one and opened rearward by the operation of the filter plate feeding mechanism. As shown in Fig. 5, the length of the connecting member (12) is shorter than the distance between adjacent filter plates (1) (1), so that the filter cloths (3) facing each other are provided.
Both upper ends of (3) are pulled out inside, and both filter cloths (3)
(3) is tilted into a substantially C shape when viewed from the side. At this time, the portal-shaped moving body (6) is positioned at the central portion between the open filter plates (1) and (1). Then, the filter cloth (1) opened backward and the cake cloth filter cloths (3) (3) covering the filter surfaces of the filter plate (1) facing the front side of the filter cloth (3) (3) ) (9) have both right and left ends on the filter cloth hanging rod receiving member (20) (2
It is supported by 0).

At this time, the left and right ends of the filter cloth suspension rods (9) (9) are supported by the receiving members (20) (20).
A coil spring that supports both ends of the filter cloth suspension rod receiving members (20) (20) above the tension of the upper suspension springs (11) (11) of the filter cloth suspension rods (9) (9). This is because the resilience of (23) and (23) is greater.

Therefore, according to the above filter press,
After the filtration work is completed, open the filter plates (1) one by one and cake.
(5) When removing (5), filter cloth hanging rod (9) (9) and cake adhering filter cloth (3) (3), filter cloth hanging rod receiving member (20) (20)
Can be firmly supported by eg cake
(5) Even if the (5) is sticky and adheres to the filter cloth (3) (3), the weight of the attached cake (5) (5) causes the coil-shaped suspension spring ( 11) (11) is not pulled downward and stretches, the filter plates (1) (1) are tilted so that their tops are inward, or the filter plates (1) (1) themselves It will not be moved to the inside and the position will not shift. Therefore, the operation of the filter cloth vibrating device (30) and the filter cloth cleaning device (40) for each open plate of each filter plate (1) becomes reliable, and the cake (5) (5)
Can be removed very quickly and reliably, and the efficiency of the filtering operation of the filter press can be greatly improved.

When the filter press is opened, the filter cloth hanging rod receiving members (20) (20) ( The operation of the filter cloth vibrating device (30) in a state of being supported by the 20) is as follows.

That is, immediately after the plate opening of the filter press, the main filter cloth striking rods (36) (36) and the auxiliary filter cloth striking members (37) (37) of the filter cloth vibrating device (30) have the above-mentioned substantially c-shape. Located on the outer side of the front and back of the filter cloth (3) (3) that is pulled out to face each other,
Further, the portal-shaped moving body (6) is located in the central portion between the open filter plates (1) and (1).

The operation of the air cylinder (31) causes the piston rod (32) of the cylinder to project downward, and the arm swinging means (33), the lifting body (34), and the main filter cloth striking rod. (36) (36) and the arm (35) (35) with auxiliary filter cloth striking member (37) (37) descends, and when both front and rear ends of the lifting body (34) hit a stopper (not shown), the arm Swinging means
(33) and arms (35) and (35) stop at the lower limit position where both filter cloths (3) and (3) should be tapped. At this time, the main filter cloth striking rods (36) (36) and the auxiliary filter cloth striking members (37) (37) on the front and rear sides are pulled out in a substantially C-shape and face each other above the filter cloth (3) (3). It is located on the outer side of the front and rear.Next, the piston rod (32) of the cylinder (31) is made to project further downward, so that the arm swinging means (3
3) actuates, and the arms (35) (35) swing to open and close, and the main filter cloth striking rods (36) (36) cause both filter cloths (3) and (3) to contact the cake (5) adhering surface. The hanging member (38) (38), which has flexibility, is struck and vibrated directly from the back surface on the opposite side and the arm (3
5) Swing by a unique vibration mode different from the opening / closing movement of (35), and both filter cloths (3) (3) are oscillated by the filter cloth striking weight members (39) (39) at these tips. , After all, the cake (5) is beaten and vibrated directly from the back side opposite to the side where it is attached.

In this case, by opening and closing the arms (35) (35),
The main filter cloth striking rods (36) (36) at these tips should be
(3) Since it is struck against the back surface of (3) and the flexible suspension members (38) (38) bend due to the elasticity of the material, it is slightly more than the opening and closing movement of the arms (35) (35). Swinging with a delay, these filter cloth tapping weight members (39) (39) at the tips of both of these filter cloths (3) (3)
It is struck against the back of the
Cake attached to the surface (opposing surface) side of the filter cloth (3) (3) facing front and back by 6) and the auxiliary filter cloth striking member (37) (37)
(5) is dropped very quickly and surely, and the cake (5) attached to the filter cloths (3) and (3) is removed by repeating this operation several times.

As described above, the cake (5) is removed by a pair of main filter cloth striking rods (36) on the back surfaces of the filter cloths (3) and (3) opposite to the cake (5) adhering surface. ) (36) and auxiliary filter cloth striking member
(37) Since it is directly beaten by (37), the removal of the cake (5) by vibration can be carried out very smoothly and sufficiently.

After removing the cake (5), the air cylinder (31)
By this operation, the piston rod (32) is retracted this time, the arm swinging means (33) and the lifting body (34), the main filter cloth striking rods (36) (36) and the auxiliary filter cloth striking member ( The arm (35) (35) with 37 (37) is raised and returns to the original upper limit position.

The operation of the filter cloth cleaning device (40) is as follows.

That is, after removing the cake (5) by the above-mentioned vibration, in the state where the left and right ends of the filter cloth hanging rods (9) (9) are supported by the filter cloth hanging rod receiving members (20) (20). , The piston rod (45) of the cylinder (44) mounted on the top of the gate-shaped moving body (6) is made to protrude by a predetermined length, and the washing water supply hose (42) is used to wash the washing pipe (41). Water is supplied, and the wash water is ejected from the nozzle and is sprayed on the opposing surfaces of the filter cloths (3) (3). While spraying washing water onto the filter cloth (3) (3) in this manner, the piston rod (45) of the cylinder (44) is made to gradually project, so that the filter cloth (3) (3) The cleaning pipe (41) descends in order, the cakes (5) and (5) on the surface of the filter cloths (3) and (3) are removed by cleaning in order from the top, and the piston rod (45) is completely covered by a predetermined amount. The cakes (5) and (5) attached to the filter cloths (3) and (3) are all washed and removed by making the stroke protrude. In this way a sticky cake
(5) Even if it is (5), this is a very easy and reliable filter cloth.
(3) (3) Can be removed from the surface.

After the washing operation is completed, the piston rod (45) of the cylinder (44) is retracted, so that the washing pipe (41) is raised.

After completion of the removal work of the cakes (5) and (5) by the operation of the filter cloth vibrating device (30) and the filter cloth cleaning device (40) as described above, the filter plate feeding mechanism is further operated to Filter plate
(1) is pulled back and opened backwards, and so on.
The cake (5) and (5) are shaken off and the washing work is automatically repeated for each open plate, and the filter plates (1) and (1) in the open plate state face each other. The cakes (5) and (5) adhering to the surface of the filter cloths (3) and (3) are sequentially removed.

The left and right legs (6a) (6) of the gate-shaped moving body (6)
The height of the filter cloth hanging rod receiving member (20) (20) attached to (a) depends on the weight of the adhesive cake (5) (5) attached to the filter cloth (3) (3) and the coil spring ( 23) It may be set in advance according to the strength of the elastic force of (23).

That is, the left and right legs (6
a) In the front and rear columns (16) and (16) forming (6a), first, the elongated holes (27) of the vertical portions (22b) and (22b) of the substantially U-shaped brackets (22) and (22).
Loosen the bolts (18) and (18) inserted in (27) respectively, and in this state, under the substantially U-shaped brackets (22) and (22), attach the substantially inverted L-shaped brackets (28) and (28). Retaining nuts (29) (29)
By rotating the height adjusting bolts (19) (19) screwed in to the lower horizontal portions (22c) (22c) () of the brackets (22) (22) by the upper ends of the bolts (19) (19). 22c) is pushed up from the bottom to temporarily set the height of the U-shaped brackets (22) (22), and thus the filter cloth hanging rod receiving members (20) (20), and finally, the substantially U-shaped brackets (22). Vertical part (22b) (22b) (22b) slot (27) (2
The bolts (18) (18) inserted in 7) are tightened.

It should be noted that the coil springs (23) and (23) are fitted over the mounting bars (21) and (21) above the upper horizontal portions (22a) and (22a) of the substantially U-shaped brackets (22) and (22), respectively. Since the retaining double nuts (26) and (26) are screwed to the male threads (21a) (21a) at the lower end of the mounting bars (21) (21), these retaining double nuts ( The height of the filter cloth hanging rod receiving members (20) (20) can be adjusted slightly by changing the screwing positions of the screws (26) (26).

In the above embodiment, the height of the filter cloth hanging rod receiving members (20) (20) is set to a substantially U-shaped bracket.
(22) Adjust the mounting position of (22), approximately inverted L-shaped bracket (28) (2
Adjusting the screwing length of the height adjustment bolts (19) (19) attached to 8), the male threads (21a) at the lower end of the mounting bars (21) (21)
Double nuts (26) (26) for retaining that are screwed into (21a)
The height of the filter cloth hanging rod receiving member (20) (20) may be set depending on the case by adjusting the screwing position of the filter cloth hanging rod receiving member (20) (20). 28) and height adjustment bolts (19) (19) are omitted, and the mounting position of the brackets (22) (22) is adjusted and / or the double nuts (26) (26) for retaining It can also be carried out by adjusting the screwing position of. When the mounting of the height adjusting bolts (19) (19) is omitted, the lower horizontal portions (22c) (22c) of the brackets (22) (22) are pushed up from below by the bolts (19) (19). Since it is not necessary, the brackets 22 and 22 do not have to be substantially U-shaped, but may be substantially inverted L-shaped.

Further, the filter cloth hanging rod receiving members (20) (20) are
It is sufficient that the movable body (6) is attached to the left and right legs (6a) (6a) inside at a predetermined height in a substantially horizontal state and is biased upward by a spring force. It is not limited to the illustrated one.

Further, a portal-shaped moving body of the filter press (6)
Filter cloth vibrating device (30) and filter cloth cleaning device (40)
Is not limited to the one having the illustrated form and structure, and it is needless to say that a filter cloth vibrating device or a filter cloth washing device having another form and structure such as a vertical vibrating filter cloth vibrating device equipped with a hammer may be used. good. In some cases, the filter cloth cleaning device (40) may be omitted.

[0043]

As described above, according to the present invention, a large number of filter plates, which are slidably held by a pair of left and right side plates through a hanger and whose front and rear filtering surfaces are covered with a filter cloth, The filter cloth suspension rods respectively attached to the upper edges of the filter cloths, the suspension springs attached to the upper end of the filter cloths and suspending the left and right ends of the filter cloth suspension rods, and the adjacent filter plate comrades to each other. A filter press comprising a connecting member for connecting both ends of filter cloth suspension rods facing each other, and a gate-shaped moving body in which both left and right legs are attached to both side plates so as to be movable back and forth. The filter cloth hanging rod receiving members are attached to a predetermined height inside the left and right legs of the device in a substantially horizontal state and urged upward by a spring force, and opened rearward after the squeezing and filtering work is completed. Filter plate and the filter plate facing it. Since the left and right ends of the filter cloth suspension rod at the upper end of the filter cloth to be covered are supported by these receiving members, the filter cloth suspension rod and the filter cloth suspension rod and the filter cloth are opened at the time of opening the plate after the completion of the filtration work. The cloth can be firmly supported, so that even if a cake having stickiness adheres to the filter cloth, the hanging spring does not extend downward due to the weight of the adhered cake, It is possible to prevent the filter plate from tilting and shifting inward,
It is possible to prevent the malfunction of the filter plate feed mechanism from occurring in advance, which can ensure the operation of the filter cloth vibrating device and the filter cloth cleaning device for each open plate of each filter plate, and the cake can be extremely The effect is that it can be removed quickly and surely, and the efficiency of the filtering operation of the filter press can be greatly improved.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of a filter press provided with a filter cloth supporting device for plate opening according to the present invention in a plate open state.

FIG. 2 is an enlarged side view of the relevant part.

FIG. 3 is a partially cutaway front view of the filter press before opening.

FIG. 4 is an enlarged side view of the main part of FIG. 2, showing the details of the mounting portion of the filter cloth suspension rod receiving member.

5 is an enlarged front view of the main part of FIG. 3, showing the details of the mounting portion of the filter cloth suspension rod receiving member.

6 is an enlarged cross-sectional view of a main part of FIG.

FIG. 7 is a partial side view of a conventional filter press in an open plate state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Filter plate 2 Side plate 3 Filter cloth 4 Lifter 5 Cake 6 Gate-shaped moving body 6a Leg part 9 Filter cloth suspension rod 10 Spring suspension rod 11 Coil-shaped suspension spring 12 Chain (connection member) 20 Filter cloth suspension rod receiver Element

Claims (1)

[Claims] 1. A pair of left and right side plates (2), (2) slidably held by hanging hands (4), (4) and front and rear filtration surfaces are filter cloths (3), (3).
A large number of filter plates (1) covered with, and both front and rear filter cloths (3) (3)
Filter cloth hanging rods (9) (9) attached to the upper edges of the
And a filter cloth hanging rod attached to the upper end of the filter plate (1)
(9) Suspension springs (11) and (11) that suspend the left and right ends of (9),
Adjacent filter plates (1) (1) Filter cloth hanging rods facing each other
(9) Connecting members (12) and (12) that connect both ends of (9) and left and right legs (6a) and (6a) are attached to both side plates (2) and (2) so that they can move back and forth. In the filter press equipped with the gate-shaped moving body (6), the left and right legs (6a) of the moving body (6)
(6a) Filter cloth hanging rod support member (20) (20) at a predetermined height inside
Are installed in a substantially horizontal state and are urged upward by a spring force, and after completion of the squeeze filtration work, the filter plate (1) opened backward and the filter plate (1) facing the filter plate (1) The left and right ends of the filter cloth suspension rods (9) (9) at the upper end of the filter cloth (3) (3) covering the filter surface are supported by these receiving members (20) (20). A filter cloth supporting device at the time of opening a plate in a filter press.