JP3012964B2 - Moving body positioning device with filter cloth vibrator in filter press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moving body positioning apparatus provided with a filter cloth vibrating apparatus in a filter press, or a moving body positioning apparatus provided with a filter cloth vibrating apparatus and a filter cloth cleaning apparatus.

[0002]

2. Description of the Related Art Conventionally, a filter press has a large number of filter plates slidably and suspendedly held on left and right side plates via respective hooks, and a filter plate feeder attached to the left and right side plates. It had a mechanism and a movable body that had a filter cloth vibrating device and a filter cloth cleaning device on the top and that was slidably viewed from the front and had a gate shape. Also, the left and right ends of the filter cloth hanging rod at the upper edge of the filter cloth covering both the front and rear filtering surfaces of each filter plate are hung by a hanging member by a coil-shaped suspension spring, and mutually adjacent filter plates are mutually separated. The left and right ends of the opposing filter cloth hanging rods were connected by a connecting chain of a predetermined length.

[0003] After the completion of press filtration by a filter press, in order to remove cake (filter cake) in a filter chamber between filter plates adjacent to each other, a filter plate feed mechanism is operated to remove cake.
The filter plates are opened one by one to the rear of the required distance, but the length of the connecting chain is shorter than the distance between the opposite filter plates in the open state. Both were pulled out inward, and both filter cloths were inclined in a substantially C shape as viewed from the side. At this time, the gate-shaped moving body is positioned at the center between the opened filter plates, and the left and right ends of the filter cloth hanging rod at the upper end of the filter cloth facing each other are provided in the gate-shaped moving body. The cake was beaten by a vibrating hammer of the filter cloth vibrating device, and the cake was shaken off and removed. Then, by the operation of the filter plate feeding mechanism, the next filter plate is further pulled back and opened rearward, and thereafter, similarly, every time the filter plate is opened, the above-mentioned cake drop-off operation is automatically and repeatedly performed. As a result, cakes adhering to the filter cloths on both front and rear sides of each filter plate were sequentially removed.

[0004] Further, after the cake vibration removing step by the operation of the filter cloth vibrating device as described above, when the filter cloth needs to be washed, all the filter plates are closed again, and then the filter plate feed mechanism is operated. As a result, the filter plates are opened one by one rearward, and the opposing filter cloths are cleaned by the operation of the filter cloth cleaning device provided in the portal-shaped moving body. Each time the plate is opened, the washing operation of the filter cloth is automatically and repeatedly performed, and the washing step of the filter cloth is performed.

[0005]

However, according to such a conventional filter press, when the cake is removed after the completion of the squeeze filtration, the opening distance gradually decreases as the opening progresses. Because during the opening operation,
Since each filter plate is fed backward by the claw of the filter plate feeder, there is always a slight gap between the sent filter plates, and this small gap is the opening distance from the initial opening to the end of opening. , And as the opening progresses,
The opening distance gradually narrowed, or the next filter plate approached in the opening direction while the plate was being opened by the claw of the filter plate feeding device, so that the opening distance also narrowed. This was caused by the tension of the filter cloth suspension spring, the weight of the cake in the filter chamber when the plate was opened, and the like.

When the opening distance is reduced, the filter cloth vibrating device and the filter cloth cleaning device are not located at the center between the opened filter plates, and so-called one-sided hit of the vibrating hammer may occur. The cleaning pipe of the filter cloth cleaning device may not be located at the center of the opposing filter cloth, causing uneven cleaning or when the cleaning pipe is lowered. There is a problem in that the filter may be caught on the hanging rod of the filter cloth and damaged, and moreover, the efficiency of the filtering operation by the filter press may be reduced.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, and to remove the cake by opening the filter plates one by one after completion of the squeezing filtration operation, even if the opening plate distance becomes shorter.
The filter cloth vibrating device and filter cloth cleaning device provided on the moving body can be accurately positioned at the center between the opened filter plates, and the cake removal work and filter cloth cleaning work by vibration It is an object of the present invention to provide a positioning apparatus for a moving body having a filter cloth vibrating device in a filter press, which can perform the filtration very smoothly and can greatly improve the efficiency of the filtering operation of the filter press.

[0008]

In order to achieve the above object, the present invention provides a number of filter plates slidably held on left and right side plates, and a plurality of filter plates slidably held on both side plates. A filter cloth vibrating device and a filter press comprising a filter cloth vibrating apparatus and at least a gate-shaped moving body as viewed from the front side provided with a filter cloth vibrating apparatus; A rocking lever for holding the filter plate is attached to each, and both rocking levers are integrally operated via a connecting member having both ends pin-connected to these levers. Each cylinder is provided, and the tip of the piston rod of the cylinder is pin-connected to one of the two swinging levers. Board The moving body is relatively stopped by being protruded inward from the movement path, and being pressed by the end portions thereof so that the opposed filter plates in the opened state are opened to both front and rear sides. A moving body equipped with a filter cloth vibrating device in a filter press, wherein the front and rear rocking levers are closed by the operation of the cylinder, so that the rocking levers are allowed to escape to the outside of the moving path of the filter plate. Of the positioning device.

[0009]

In the above-mentioned filter press, the swinging levers for holding the front and rear filter plates of the moving body positioning device provided on the left and right legs of the gate-shaped moving body operate integrally via a connecting member, and the lever operating cylinder. The tip of the piston rod is pin-connected to one of the two swinging levers. Normally, the tip of the front and rear swinging levers is closed by the operation of the cylinder, and both swinging levers are , The two swinging levers do not hinder the movement of the filter plate, and the moving body can move back and forth.

[0010] After the press-filtration operation of the filter press is completed, the tightening force on all the filter plates is first loosened to remove the cake from each filter chamber. By operation, the filter plates are pulled back one by one and opened backward. Each time the filter plate is opened, the end portions of the front and rear rocking levers are opened by the operation of the lever operating cylinder, and are protruded inward from the movement path of the filter plate. The opposed filter plates in the open state are pressed so as to be opened to both front and rear sides, and both filter plates are locked (fixed). In addition, the gate-shaped moving body is relatively stopped, and the filter cloth vibrating device and the filter cloth cleaning device provided on the moving body are accurately positioned in the center between the opened filter plates. Can be

Therefore, according to the moving body positioning apparatus of the present invention, as the opening of the filter press progresses from the initial stage to the final stage, the filter cloth vibrating device and the filter provided in the moving body are provided even if the opening distance gradually decreases. The cloth cleaning device can be accurately positioned at the center between the opened filter plates, and the vibration of the cake is removed by the operation of the filter cloth vibrating device.
Alternatively, the washing operation of the filter cloth by the filter cloth washing apparatus, which is performed when necessary, can be carried out extremely smoothly, and the efficiency of the filtering operation of the filter press can be greatly improved.

[0012]

Next, an embodiment of the present invention will be described with reference to the drawings.

In this specification, front and rear and left and right refer to FIG. 1, the front means the right side of FIG. 1, the rear means the same left side, and the left and right refer to the front.

First, in FIG. 6, the filter press is
A first head (3) and a rear head (4) each having a stand (1), a pair of left and right side plates (2) and (2), and a pair of left and right side plates (2) and (2) via rollers. Loose head (5) and both side plates (2)
(2) A number of filter plates (7) slidably and suspendedly held via a pair of left and right lifting hands (8) (8),
(2) The guide rails (18) and (18) of (2) are held movably back and forth via rollers (19) and (19), and the filter cloth vibrator is mounted on the top.
(60) and a portal-shaped moving body (6) as viewed from the front side provided with a filter cloth cleaning device (70).

The filter plate feed mechanism (4) is provided on the left and right side plates (2) and (2).
1) and (41) are provided, respectively, and the left and right legs of the filter plate feed block (42) (42) of the filter plate feed mechanism (41) (41) and the gate-shaped moving body (6)
(6a) and (6a) are provided with moving body feeding mechanisms (52) and (52), respectively. Moving body positioning devices (20) and (20) are provided on the lower horizontal rails (16) and (16) of the left and right legs (6a) and (6a) of the gate-shaped moving body (6), respectively.

As shown in FIG. 4, the front and rear filtration surfaces of each filter plate (7) are covered with a pair of front and rear filter cloths (10) (10) interconnected at the undiluted solution introduction hole (14). ing. The left and right ends of the filter cloth hanging rod (9) attached to the upper edge of each filter cloth (10) are the inverted L-shaped spring suspensions provided on the left and right sides of the upper end of the filter plate (7). Upper horizontal part (11a) (11a) of the lower bar (11) (11)
Are hung by coil springs (12) and (12) hung on each other.

As shown in FIGS. 3 and 6, the left and right ends of the filter cloth hanging rods (9) (9) of the filter plates (7) (7) adjacent to each other are connected to the connecting chain (13). (13) connected by a chain
(13) and (13) have a length shorter than the interval between the filter plates (7) and (7) facing each other in the open state. Such a filter cloth hanging rod
(9) The connecting member of (9) may of course be constituted by a rope or the like other than the chains (13) and (13).

As shown in FIGS. 1 to 4, the moving body positioning apparatus (20) (20) according to the present invention comprises a front and rear support (15) for the left and right legs (6a) and (6a) of the gate-shaped moving body (6). ) (15)
(16) and (16) are provided respectively.

The moving body positioning devices (20) (20) on both left and right sides of the filter press are provided with a filter plate feeding mechanism (41).
Since they are arranged on the upper side of (41), the actions of both devices do not interfere with each other. Further, the moving body positioning devices 20 and 20 on the left and right sides of the filter press are symmetrical to each other and have the same structure. Therefore, one of the moving body positioning devices 20 on the right side, for example, will be described below.

[0020] The lower horizontal rail (16) of the leg (6a) of the portal mobile (6)
A pair of horizontal brackets (27) and (28) are provided at the front and rear end portions of the bracket so as to protrude inward. The front horizontal bracket (27) has a front swing lever (2
One end of 1) is swingably attached by a pin (30). At the other end of the front swing lever (21), a filter plate pressing roller (24) is rotatably attached by a pivot (34). On the other hand, on the rear horizontal bracket (28), a substantially central portion of a substantially swinging filter plate holding rear swing lever (22) which is longer than a plane is swingably attached by a pin (32). . A lever operating cylinder (25) is swingably attached to the lower horizontal rail (16) via a bearing bracket (35) and a pivot (36), and one end of a rear swing lever (22) is provided. To
The tip of the piston rod (26) of this cylinder (25)
(33). A filter plate pressing roller (24) is rotatably attached to the other end of the rear swing lever (22) by a pivot (34). And front swing lever (21)
The front end of the connecting member (23) is connected to the bent portion of the connecting member (23) by a pin (31), and the rear end of the connecting member (23) is connected to the distal end of the piston rod (26) of the lever operating cylinder (25). The end of the rear swinging lever (22) is connected to the section by the pin (33). A turnbuckle (29) is interposed in the center of the connecting member (23) in order to adjust the entire length thereof.

As described above, the swing lever (21) for holding the front and rear filter plates is provided.
(22) operates integrally via a connecting member (23), and the distal end of the piston rod (26) of the lever operating cylinder (25) is attached to a pin (33) at one end of the rear swing lever (22). ), In a normal state such as when the filter press is in the press-filtration operation and when the filter plate (7) is moved after the filtration, as shown by a dashed line in FIG. When the piston rod (26) of (25) projects, the front ends of the front and rear swing levers (21) and (22) close, and the swing levers (21) and (22) close.
Further, the pressing rollers (24) and (24) are released outside the moving path of the filter plate (7). For this reason, both swing levers (21) (2
2) does not hinder the movement of the ordinary filter plate (7).

On the other hand, after the press-filtration operation of the filter press is completed, a gate-shaped filter plate (7) opened by the operation of a filter plate feed mechanism (41) described later and the next filter plate (7). When the moving object (6) is positioned, the moving object positioning device
The piston rod (26) of the cylinder (25) of (20) is retracted, and as shown by solid lines in FIGS. 1 and 2, the front ends of the front and rear swing levers (21) and (22) are opened together. , Opposed filter plates
(7) The filter plates (7) and (7) are opened forward and backward from each other by the pressing rollers (24) and (24) at the tips of the filter plates while being protruded inward from the movement path of (7). So that both filter plates (7) and (7) are locked.
When the filter plates (7) and (7) are locked in this way, the portal moving body (6) is also relatively stopped, and the vibration of the filter cloth provided on the moving body (6) is reduced. The device (60) and the filter cloth cleaning device (70) are precisely positioned in the center between the opened filter plates (7) (7).

The filter plate feeding mechanisms (41) and (41) and the moving body feeding mechanism (5) provided on the left and right sides of the filter press, respectively.
2) The configuration of (52) is as follows.

The filter plate feed mechanisms (41) and (41) and the moving body feed mechanisms (52) and (52) on the left and right sides of the filter press are symmetrical to each other, and the right and left sides have the same structure. Hereinafter, one of, for example, the filter plate feeding mechanism (41) and the moving body feeding mechanism (52) on the right side will be described.

In FIG. 2 to FIG. 6, the filter plate feed mechanism (41)
Has a filter plate feed block (42) attached in the middle of the endless chain (43), and a filter plate pull-back claw (44) is provided at a portion near the front end of the block (42) from a pin with a head. A pivot (47) is attached so as to swing freely, and a stop claw (45) is attached to a portion near the rear end of the block (42) by a pivot (47) consisting of a pin with a head. . Then, a tension spring (46) is hung between the lower end portions of the claws (44) and (45) which have passed the pivots (47) and (47) downward, and the action of the tension spring (46) causes the claws (44). ) (45) is urged to always stand. The winding portions at both ends of the endless chain (43) are wound around a pair of front and rear chain wheels (48) (48). A driving force is transmitted to the front chain wheel (48) from a reversible motor with a speed reducer via a transmission mechanism.

A band-shaped filter plate pull-back claw pushing-down member (49) is passed to the front and rear ends of the filter plate feeding block (42), and the long holes (50) (50) ), The headed pins (51) and (51) are loosely inserted, and this pushing-down member (49) is only the length of the slots (50) and (50) in the length direction of the block (42). Can move back and forth. Filter plate retraction claw (44) and stop claw (45)
Is sandwiched between the horizontal portion of the block (42) and the pushing member (49).

By the way, the right moving body feed mechanism (52)
A moving body feeding member (53) provided at the rear end of the filter plate feeding block (42) on the same side in an outwardly protruding manner, and correspondingly, a right leg of the gate-shaped moving body (6). (6a) and front and rear contact plates (55) and (55). Where the front and rear
(55) and (55) are attached to the leg (6a) as follows. That is, the front fixing bracket (54) is attached to the substantially horizontal portion of the lower horizontal rail (16) of the right leg (6a) so as to protrude inward, and the front end of the bracket (54) is Board (55)
A male screw rod (57) having a hole is inserted and screwed into the male screw rod (57) so as to sandwich the end of the bracket (54).
Male threaded rod (57) with front backing plate (55) with two nuts (58)
Are fixed to the bracket (54). In addition, bracket
(54) On the lower side, a substantially L-shaped backing plate receiving member as viewed from a plane
(59) is fixed horizontally. On the other hand, a portal mobile (6)
A rear protruding bar (56) that extends the lower horizontal bar (16) rearward is attached to the right leg (6a) of the rear, and a rear fixing bracket (54) is attached to the tip of the rear protruding bar (56). Similarly, a male screw bar (57) having a rear abutment plate (55) is inserted through the tip of the bracket (54) so as to protrude inward.
A male threaded rod (57) with a rear backing plate (55) is fixed to the bracket (54) by three nuts (58) screwed to (57) so as to sandwich the tip of the bracket (54). A substantially L-shaped backing plate receiving member (59) is horizontally mounted below the bracket (54).

By appropriately adjusting the positions of the three nuts (58) of the front and rear male screw rods (57) and (57), the positions of the front and rear backing plates (55) and (55) can be appropriately set. it can.

In the above-described filter press, after the completion of the press-filtration operation, the loose head (5) is retracted by the operation of a hydraulic cylinder (not shown) provided in the rear head (4), and all the filter plates (7) are removed. Tightening force is loosened. At this time, the filter cloth vibrating device (60) and the filter cloth cleaning device
The portal mobile (6) equipped with (70) is waiting at the rear head (4) side of the filter press.

Next, the filter cloth attached to both sides of the filter plate (7)
Filter plate (7) to remove cake adhering to (10)
First, the endless chain (43) is rotated clockwise as viewed from the side. Endless chain (4
With the rotation of 3), the filter plate feeding block (42) advances. Along with this advance, first, a moving body feed member (53) provided in an outwardly projecting shape at the rear end of the filter plate feed block (42),
The gate-shaped moving body (6) moves forward while engaging with the front and rear abutment plate (55) on the leg (6a) side of the portal-shaped moving body (6).

At this time, the front ends of the front and rear swing levers (21) and (22) are closed by the protrusion of the piston rod (26) of the lever operating cylinder (25) of the moving body positioning device (20), and The swing levers (21) and (22) and the pressing rollers (24) and (24)
The gate-shaped moving body (6) is allowed to move back and forth so as not to hit (7).

When the filter plate feeding block (42) reaches the filter plate (7) to be pulled back, the filter plate pulling-back claw (44) on the front side moves the lower side of the handle (8) of the filter plate (7). Passing while falling, hanging hand
Stand up after (8). Since the rear stop claw (45) remains up, it hits the hanger (8). Therefore, the filter plate feeding block (42) cannot proceed forward, and the endless chain (43) stops, thereby stopping the portal mobile unit (6). When the endless chain (43) stops, the endless chain (43) rotates counterclockwise this time by the operation of the rotation direction switching means. As a result, the filter plate pulling-back claw (44) on the front side hooks the hook (8) of the filter plate (7), and the loose head (5) has already retracted the filter plate (7).
And return to the filter plate (7). Since the filter plate (7) cannot proceed any further, the filter plate feed block (42)
Stops there, and the endless chain (43) stops.

Since the length of the connecting chain (13) is shorter than the interval between the filter plates (7) and (7) thus opened, the upper ends of the filter cloths (10) and (10) facing each other are Both are pulled out inward, and both filter cloths (10) (10) are inclined in a substantially C shape when viewed from the side.

At this time, the portal moving body (6) is positioned between the opened filter plates (7) and (7).

In this state, the piston rod (26) of the cylinder (25) of the moving body positioning device (20) according to the present invention is retracted, and the front and rear swing levers (21) and (22) are connected to each other. It is opened and protruded inward from the movement path of the opposing filter plates (7) (7), and both filter plates (7) (7) are joined by the pressing rollers (24) (24) at these tips. The two filter plates (7) and (7) are locked so as to be opened to both front and rear sides. In this way, both filter plates (7) (7)
When the lock is locked, the portal moving body (6) is also relatively stopped, and the filter cloth vibrating device (60) and the filter cloth cleaning device (70) provided in the moving body (6) are moved. , Opened filter plate
(7) (7) It is accurately located in the center between comrades.

Therefore, the moving body positioning device (2
According to (0), as the plate opening progresses from the initial stage to the end of the opening of the filter press, even if the opening distance gradually decreases,
The filter cloth vibrating device (60) and the filter cloth cleaning device (70) provided on the moving body (6) can be accurately positioned in the center between the opened filter plates (7) and (7). Thus, the operation of removing the vibration of the cake by the operation of the filter cloth vibrating device (60) can be performed extremely smoothly.

Here, in FIGS. 3, 4 and 6, which show an example of the filter cloth vibrating device (60), an air cylinder (61) is provided at the top of the portal-shaped moving body (6) with its piston rod ( 62) downward, and a pair of front and rear main filter cloth hitting rods (66) (66) are attached to the tip of the piston rod (62) via an arm swinging means (63) and an elevating body (64). Arms (65) and (65) are attached. Here, the front and rear arms (65) (65)
It has a substantially rectangular shape and a substantially inverted shape when viewed from the side, and main filter cloth hitting rods (66) (66) are horizontally attached to the lower ends of both arms (65) (65). In addition, front and rear both arms (65) (65)
The flexible hanging member (6
8) (68) and an auxiliary filter cloth tapping member (67) (67) consisting of a filter cloth tapping weight member (69) (69) at the lower end of the main filter cloth tapping rod (66)
(66) It is attached so as to be located below.

After the filter press is opened, the filter cloth vibrating device (60) provided in the moving body (6) is operated by the moving body positioning device (20) to open the filter plates (7) and (7). When located in the center between the comrades, the main filter cloth tapping rods (66) and (66) and the auxiliary filter cloth tapping members (67) and (67) of the filter cloth vibrator (60)
It is located above and behind the filter cloths (10) and (10), which are drawn out in a substantially C-shape, and the portal-shaped moving body (6) is opened by the action of the moving body positioning device (20). Filtered plates (7)
(7) Located in the middle between comrades.

Then, by the operation of the air cylinder (61), its piston rod (62) is made to protrude downward, and the arm swing means (63) and the arms (65) and (65) descend, Stop at the lower limit position where both filter cloths (10) and (10) should be beaten.
When the piston rod (62) of the cylinder (61) protrudes further downward, the arm swing means (63) operates, and the arm (65) (65) swings to open and close, and strikes the main filter cloth. Rod (66) (6
According to 6), both filter cloths (10) and (10) are directly beaten from the back surface opposite to the cake adhering surface to vibrate, and the flexible hanging members (68) and (68) are attached to the arm (65). (65) swings by a unique vibration mode different from the opening / closing motion, and both filter cloths (10) (1)
0) is also hit directly from the back surface opposite to the cake attachment surface and vibrates. Thus, the main filter cloth striking rod (66) (6
6) and the auxiliary filter cloth tapping members (67) (67) allow the cake adhering to the front (front side) sides of the filter cloths (10) (10) facing the front and back to drop very quickly. By repeating the operation several times, the cake adhered to the filter cloths (10) (10) is removed. Incidentally, such a filter cloth vibrating device (60) is disclosed in Japanese Patent Application No. 5-60400 proposed by the present applicant.
It is described in detail in the specification.

After the cake removal operation by the operation of the filter cloth vibrating device (60) as described above, the piston rod of the lever operating cylinder (25) of the moving object positioning device (20) is completed.
(26) is protruded, the front ends of the front and rear swing levers (21) and (22) are closed, and both swing levers (21) and (22) and the pressing rollers (24) and (24) are ) Is escaped so as not to be obstructed outside on the movement route of.

Then, the endless chain (43) is rotated clockwise again by the operation of the rotation direction switching means of the filter plate feed mechanism (41) to advance, and the next filter plate (7) is advanced.
Go to. The filter plate feed block (42) moves forward with the rotation of the endless chain (43), and each time the block (42) moves forward, the moving body feed member (53) provided therein
The gate-shaped moving body (6) is moved forward by one filter plate (2) by engaging with the front patch plate (55) on the leg (6a) side of (6), and the filter plate (7) ( When the movable body positioning device (20) according to the present invention is operated, the two filter plates (7) (7)
The open plate distance between comrades is kept constant, and both filter plates (7) (7)
Is locked, and relatively the portal mobile (6) is
(7) (7) It is located in the middle between comrades.

In the same manner, the filter plates (7) are successively pulled back one by one, and each time the filter plate (7) is opened, the portal mobile body (6) advances and the portal mobile body (6) after the advance. ) And the filter plates (7) and (7) are locked relative to each other, and the vibration removal operation of the cake is automatically and repeatedly performed. Cakes are sequentially removed.

By the way, all the filter plates (7) to be pulled back
Is pulled back and after the cake vibration removal work is completed,
If the gate-shaped moving body (6) and the filter plate feeding block (42) are stopped at the front position, they will be in the way of the next filtration operation.

When the endless chain (43) of the filter plate feed mechanism (41) rotates clockwise, the filter plate feed block (42) moves forward and the first head (3).
To the last filter plate (7) on the side. When the block (42) reaches the first head (3), the pushing-down member (49) provided in the block (42) hits a stopper (not shown) on the first head (3) side, and thereby the endless chain (43).
Then, the filter plate feeding block (42) stops, and the pushing-down member (49) moves rearward by a required length, whereby the filter plate retraction claw (44) is forcibly pressed downward.

When the endless chain (43) rotates counterclockwise by the operation of the rotation direction switching means of the filter plate feed mechanism (41), the filter plate feed block (42) is retracted. Since the pullback claw (44) is still lying down, the last filter plate (7) on the first head (3) side is not pulled back,
Also, the block (42) is a handle (8) for the already opened filter plate (7).
And moves backwards past these filter plates (7) and loose head (5). With the retreat of the block (42), the moving body feeding member (53) provided on the block (42) is moved to the rear reliance plate (55) of the leg (6a) of the gate-shaped moving body (6). ), The portal mobile (6) is blocked (42)
And is made to stand by at a predetermined position on the first rear head (4) side. The filter plate feed mechanism as described above
Regarding (41), actual fairness 3-34 proposed by the applicant
No. 259, for example.

After the cake vibration removing step by the operation of the filter cloth vibrating device (60) is completed, when the filter cloths (10) need to be washed, all the filter plates (7) are closed again. By the operation of the filter plate feed mechanism (41) and the filter cloth cleaning device (70) of the gate-shaped moving body (60), the step of cleaning the opposed filter cloths (10) (10) is performed.

FIGS. 3 and 4 show an example of the filter cloth cleaning device (70).
In FIG. 6, a washing water supply hose (72) is wound around a hose reel (73) provided on the top of the gate-shaped moving body (6). At the top of the moving body (6), a cylinder (74) has its piston rod (75) facing downward.
5) A cleaning pipe (71) is attached to the lower end. The tip of the hose (72) is connected to a washing pipe (71) via a joint, and the other end of the hose (72) is connected to a washing water supply source (not shown).

Then, in order to carry out the washing process of the filter cloths (10), (10), the piston rod (75) of the cylinder (74) at the top of the gate-shaped moving body (6) is protruded by a predetermined length, Cleaning water is supplied from the cleaning water supply hose (72) to the cleaning pipe (71). The washing water is spouted from the nozzle and blown to the opposing surfaces of the filter cloths (10) (10). While spraying the washing water on the filter cloths (10) and (10), the piston rod (75) of the cylinder (74) is
Is gradually protruded, so that the washing pipe (71) descends from the top to the bottom of the filter cloth (10) (10), and the filter cloth (10)
(10) The surface is cleaned in order from the top.

The filter cloth (1) by such a filter cloth cleaning device (70)
0) After the cleaning operation of (10) is completed, the piston rod of the lever operating cylinder (25) is operated by the operation of the moving body positioning device (20).
(26) is protruded, the front ends of the front and rear swing levers (21) and (22) are closed, and both swing levers (21) and (22) and the pressing rollers (24) and (24) are ), So that the filter cloth (10) (1) is opened every time the filter plate (7) is opened, as in the case of the cake vibration removing step.
The washing operation of 0) is automatically and repeatedly performed.

In the above embodiment, the front and rear swing levers (21) and (22) are provided with filter plate pressing rollers (24) and (24)
Are rotatably mounted by pivots (34) and (34), but in some cases, such filter plate holding rollers
(24) Omit the mounting of (24) and move the front and rear swing levers (21) (2
Opposed filter plate (7) (7) in the open plate state by the tip itself of 2)
Comrades may be pushed to the front and back.

The filter cloth vibrating device (60) provided in the gate-shaped moving body (6) is not limited to the one shown in the figure, but may be any other type and structure such as a vertical vibration type filter cloth vibrating device equipped with a hammer. Of course, a filter cloth vibrating device having the following may be used. Also, the filter cloth cleaning device (70) is not limited to the one shown in the drawing, and a filter cloth cleaning device (70) having another type and structure may be used. Installation may be omitted.

Further, a filter plate feeding mechanism of a filter press
(41) and the moving body feeding mechanism (52) are not limited to those shown in the figure, and may have other types and structures.

[0053]

As described above, the present invention provides a large number of filter plates slidably held on both left and right side plates, a filter cloth vibrating device and a filter cloth cleaning device movably held on both side plates. In a filter press having at least a gate-shaped moving body as viewed from the front having at least a filter cloth vibrating device, a pair of front and rear filter plate holding rocking levers are provided on both left and right legs of the portal-shaped moving body. Each of the swinging levers is attached to each other, and both ends thereof are integrally operated via a connecting member having both ends pin-connected to each other. Cylinders for lever operation are provided on both left and right legs of the moving body, respectively. The tip of the piston rod is pin-connected to one of the two swinging levers, and the tip of the front and rear swinging levers is opened by the operation of the cylinder, so that the tip of the swinging lever moves inward from the movement path of the filter plate. Overhang The moving body is relatively stopped by the filter plates opposing each other in the open state being opened to the front and rear sides by the front ends thereof. The tip of the lever is closed, and both swinging levers are made to escape outside on the movement path of the filter plate.According to the moving body positioning apparatus of the present invention, each time the filter plate is opened,
By operating the lever operating cylinder, the front ends of the front and rear rocking levers are opened and the filter plates are made to protrude inward from the moving path of the filter plate. The two filter plates are locked (fixed) so that they are opened on both front and rear sides, and the gate-shaped moving body is also relatively stopped.
The filter cloth vibrating device and the filter cloth cleaning device provided on the moving body are accurately positioned at the center between the opened filter plates, so that the filter press is opened from the initial opening to the end of the opening. As a result, even if the opening distance becomes gradually narrower, the filter cloth vibrating device and the filter cloth cleaning device provided on the moving body can be accurately positioned at the center between the opened filter plates, and the filter cloth The operation of removing the cake vibration by the operation of the vibration device or the cleaning operation of the filter cloth by the filter cloth cleaning device, which is performed when necessary, can be carried out extremely smoothly, and the efficiency of the filtration operation of the filter press can be greatly improved. This has the effect of being able to do so.

[Brief description of the drawings]

FIG. 1 is an enlarged side view of an essential part of a partially cut-out state of a filter press showing an embodiment of the present invention in an opened state.

FIG. 2 is an enlarged side view of an essential part of the partial cutout.

FIG. 3 is an enlarged side view of a main part of a partially cut-away portion of the portal body of the filter press.

FIG. 4 is an enlarged sectional view of a main portion of a partially cutaway showing the moving body.

FIG. 5 is an enlarged sectional view showing a filter plate feed mechanism and a moving body feed mechanism of the filter press.

FIG. 6 is a side view of the entire filter press showing an embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 2 Side plate 6 Gate-shaped moving body 6a Leg 7 Filter plate 10 Filter cloth 20 Moving body positioning device 21 Front swing lever 22 Rear swing lever 23 Connecting member 24 Pressing roller 25 Lever swing cylinder 26 Piston rod 41 Filter plate Feed mechanism 42 Filter plate feed block 52 Moving body feed mechanism 60 Filter cloth vibrator 70 Filter cloth cleaning device

Claims (1)

(57) [Claims] 1. A large number of filter plates (7) slidably held by left and right side plates (2) and (2), and a filter cloth movably held by both side plates (2) and (2). A filter press having at least a movable body (6) viewed from the front and having a filter cloth vibrating device (60) among the vibrating device (60) and the filter cloth washing device (70); A pair of front and rear rocking levers (21) and (22) are attached to the left and right legs (6a) and (6a) of the body (6), and the rocking levers (21) and (22) are attached to these. Both ends are integrally operated via a connecting member (23) to which pins are connected, and a lever operating cylinder (25) is provided on each of the left and right legs (6a) (6a) of the moving body (6). The cylinder (2
The tip of the piston rod (26) of (5) has both swinging levers (21) (2)
Pins are connected to one of the levers in 2), and when the cylinder (25) is actuated, the front ends of the front and rear swinging levers (21) and (22) are opened to move along the movement path of the filter plate (7). By moving the filter plates (7) and (7) facing each other open in the open state by their tips so that they are opened to both front and rear sides, the movable body (6) is relatively moved. Is stopped, and the front and rear swing levers are actuated by the operation of the cylinder (25).
(21) (22) The tip end of the filter cloth is vibrated in the filter press when the tip of the rocker is closed so that both swing levers (21) and (22) are allowed to escape from the movement path of the filter plate (7). A moving object positioning device equipped with a device.