JPH0753691Y2 - Filtration device - Google Patents

Description

[Detailed Description of the Invention] Industrial field of application The present invention is to close the lower end opening of a tubular filter medium into a bag shape,
The present invention relates to a filtering device in which an undiluted solution is supplied into a filter medium, and then the upper end opening of the filter medium is closed to perform filtration.

2. Description of the Related Art Hitherto, various types of filter devices of this type have been known. For example, after closing the lower end opening of the cylindrical filter medium, the stock solution is supplied from the upper end opening for filtration, and after the filtration is completed, the lower end opening of the filter medium is opened so that the cake in the filter medium is discharged. There is one configured.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the structure described above, when the stock solution is supplied from the upper end opening to the filter medium having the lower end opening closed,
Since it was visually checked whether the liquid level of the stock solution reached a predetermined level, it was very complicated.

Therefore, an object of the present invention is to solve the above problems, and to provide a filtration device capable of automatically stopping the supply of the stock solution when the stock solution is supplied to the filter medium.

Means for Solving the Problems In order to achieve the above object, the present invention has a sensor arranged on a pressing member to detect a supply state of a stock solution in a filter medium, and when a predetermined state is reached, an upper end portion of the filter medium is reached. It is configured to close the opening.

That is, a tubular filter medium, a supporting member for suspending and supporting the tubular filter medium, and the filter medium interposed between the filter medium and the supporting member to hold the filter medium in an expanded state and to impart vibration to the filter medium during cake discharge. And a vibration applying member to close the lower end opening of the filter medium to form a bag-shaped filter medium, after filtration, open the lower end by releasing the closing of the lower end opening of the filter medium,
A first closing member for discharging the cake in the filter medium, a stock solution supplying member for supplying a stock solution into the filter medium, a second closing member for closing an upper end opening of the filter medium, and a second closing member are driven. A second closing member drive circuit, a pressing member for pressing and filtering the filter medium containing the undiluted solution and having openings at both upper and lower ends closed by the first and second closing members, and a filter medium for the pressing member. A sensor which is arranged on a wall surface that presses the upper part and which outputs a signal by detecting a liquid component that permeates the filter medium among the stock solutions supplied into the filter medium, and the supply of the stock solution to the filter medium by the stock solution supply member. And a signal output from the sensor is received to drive the undiluted liquid supply stop circuit to stop undiluted liquid supply by the undiluted liquid supply member and the second closing member drive circuit. While driving to closing the upper end opening of the filter medium by the second closing member, configured to and a control device for each driven and the pressing member and the vibrating member.

In the above configuration, the vibration applying member may include a spring and a vibration applying cylinder, and the vibration may be applied to the filter medium by driving the vibration applying cylinder and the biasing force of the spring.

Further, in the above configuration, the filter medium may be configured to include a polygonal cylindrical filter medium body and a connecting member that connects the filter medium body and the vibration imparting member.

Further, in the above structure, a stock solution supply member for supplying the stock solution into the filter medium from the upper end opening of the filter medium having the closed lower end may be provided.

Effect of the Invention In the above-mentioned configuration, the lower end opening of the filter medium is provided with the first opening.
After blocking with the blocking member, the stock solution is supplied into the filter medium from the upper end opening of the filter medium with the stock solution supply member. Then, when the undiluted solution reaches a predetermined supply state, a signal is input from the sensor to the control device, and the undiluted liquid supply stop circuit is driven by the control device to stop the undiluted solution supply by the undiluted solution supply member while the second solution is supplied. The closing member drive circuit is driven to close the upper end opening of the filter medium by the second closing member. Then, the pressing member is driven to bring it into contact with the filter medium and press the stock solution in the filter medium together with the filter medium to perform squeeze filtration. After filtering
By driving the first closing member, the lower end opening of the filter medium is opened, and the cake held in the filter medium is discharged. At the time of discharging the cake, the vibration applying member applies vibration to the filter medium to discharge the cake attached to the filter medium.

Advantageous Effects of Invention According to the above configuration, the sensor is arranged on the wall surface of the pressing member that presses the upper part of the filter medium, and the signal is controlled by detecting the liquid component that permeates the filter medium in the undiluted solution supplied into the filter medium. When the control device receives a signal output from the sensor and output from the sensor, the undiluted liquid supply stop circuit is driven to stop the undiluted liquid supply by the undiluted liquid supply member and the second closing member drive circuit is driven. Then, the upper end opening of the filter medium is closed by the second closing member to start the filtering operation. Therefore, the mouth of the filter medium can be automatically closed before the stock solution spills from the upper end opening of the filter medium, and it is not necessary to visually observe the liquid level of the stock solution supplied into the filter medium, eliminating unnecessary time and manpower. It is also possible to prevent the risk that the stock solution is spilled from the opening of the upper end of the filter medium and the apparatus is soiled, or the stock solution is scattered and splashed on the operator. Therefore, the filtration and squeezing work can be repeatedly performed without relying on the feeling of human hands and workers.

Embodiment An embodiment according to the present invention will be described in detail below with reference to FIGS.

As shown in FIGS. 1 to 3, the filtration device according to the present embodiment includes a rectangular tubular filter medium 1 on a support frame 2 as a support member,
The filter medium 1 is suspended and supported through a vibration imparting member, the lower end opening of the filter medium 1 is closed by driving a first closing cylinder 3 as a first closing member, and the stock solution supply member is opened from the upper end opening of the filter medium 1. To supply the stock solution into the filter medium 1,
The upper end opening of the filter medium 1 is closed by driving the second closing cylinder 5 and the pressing member is driven, that is, the pressing plate.
4b is pressed to drive the filter medium 1 in which the stock solution is contained to perform squeeze filtration, while the first closing cylinder 3 releases the closing operation of the lower end of the filter medium 1 after completion of the filtration. The configuration was roughly configured such that the portion was opened, the cake in the filter medium 1 was discharged below the filter medium, and the filter medium 1 was vibrated by the vibration applying member.

As shown in FIG. 4, the filter medium 1 is a filter medium body 1c formed by a cloth made of polypropylene fiber into a square tubular body.
And the support cords 1a, 1b, 1d as connecting members integrally sewn on the outer surfaces of the upper end portion, the intermediate portion and the lower end portion of the filter body 1c. The material of the fibers that make up this filter body 1c,
The thickness of the fibers, the roughness of the mesh and the like are appropriately selected according to the properties of the stock solution to be filtered. Therefore, the material of the fiber may be cotton or the like other than synthetic resin. Further, after reinforcing a synthetic resin sheet with a cloth as a backing, a large number of pores can be opened in the sheet, and the sheet can be used in the same manner as the cloth. The size of the pores can be formed to a desired size depending on the properties of the stock solution. , 1a are sewn to the pair of opposite corners of the filter medium main body 1c, two at a time, and the second support cord 1b, one to the remaining pair of opposite corners. Sew on 1b. Further, at the upper end portion of the filter medium body 1c, a hanging support string 1 extending in a U-shape upward in the axial direction of the filter medium 1
Sew d and 1d.

As shown in FIGS. 1 to 3 (a), the filter medium 1 has a support frame 2 assembled in a rectangular frame shape, and a corner portion of the filter medium 1 is rotated by 90 degrees from a corner portion of the support frame 2. They are supported so that their phases are shifted from each other by rotating them. 1 is a front view of the filtering device, FIG. 2 is a right side view of the filtering device, and FIG. 3 (a) is a plan view of the filtering device. On the front and back sides of the support frame 2, the upper frame 2a, the middle frame 2b, and the lower frame 2c, which are installed in the upper, middle, and lower portions of the support frame 2 along the horizontal direction, respectively, are provided in the vertical direction. Upper and lower frames 2d, 2d are provided respectively. Each upper and lower frame 2d is provided with a pair of rolling rollers 22, 22 at both upper and lower ends thereof so that the upper and lower frames 2a and 2c of the support frame 2 can be moved in the horizontal direction. Each upper and lower frame 2d rotatably supports rollers 18, 21, 20, and 19 at its upper and lower end portions, an intermediate portion, and an upper portion between the intermediate portion and an upper end portion, respectively, and is slightly lower than the intermediate portion. A vibration imparting cylinder (17) is provided via a tension spring (16). The first support cord 1a at the upper end of the filter medium 1 is through the upper roller 18, the first support cord 1a at the middle portion is between the roller 20 in the middle portion and the roller 19 in the middle upper portion, and the lower end portion. The first support cord 1a is engaged with one end of the spring 16 via the lower roller 21 and the upper roller 19 and the other end of the spring 16 is engaged with the piston rod of the cylinder 17. Has been done. The spring 16 prevents an overload from acting on the first support cord 1a connected to the cylinder 17. Further, on the right side surface of the support frame 2, rollers 9, 10, 11 are rotatably provided at the upper end portion, the intermediate portion and the lower end portion of the side surface, respectively, and one end is supported in the vicinity of the rollers 9, 10, 11 respectively. The tension springs 8, 8, 8 fixed to the frame 2 are provided, and the second support cord 1b is connected to the other ends of the tension springs 8 at the upper end portion, the intermediate portion and the lower end portion via the rollers 9, 10, 11 respectively. Lock to each. Further, the left side surface of the support frame 2 is provided with vibration imparting cylinders 12, 13, 14 at the upper end portion, the intermediate portion and the lower end portion, respectively, in the horizontal direction,
The first support cords 1a at the upper end portion, the intermediate portion and the lower end portion of the filter medium body 1c are locked to the tips of the piston rods 12a, 13a, 14a of the cylinders 12, 13, 14 respectively. Therefore, the spring 8 and the cylinders 12 and 1 are
3, 14 and 17 constitute the vibration applying member. Therefore, the filter medium 1 is always expanded in the horizontal direction by the urging force of the cylinders 12, 13, 14, 17, 17 and the springs 8, ... It is supported and vibrates the filter medium 1 by driving the cylinders 12, 13, 14, 17, 17 back and forth. Four filter medium suspension frames 6,6,6,6 extending vertically upward are provided at the upper end of the support frame 2 and are provided between the two filter medium suspension frames 6,6 on the front side and the back side respectively. The support rails 7 are fixed along the horizontal direction. A pair of these support rails 7,
Rolling rollers 15 and 15 are provided on 7 respectively so as to be rollable, and the hanging support strings 1d and 1d are respectively locked to the rolling rollers 15 and 15,
The filter medium 1 is suspended and supported on the support frame 2.

On the left side surface of the support frame 2, a second closing cylinder 5 is fixed to the upper frame 2a, a pressing cylinder 4 is fixed to the middle frame 2b, and a first closing cylinder 3 is fixed to the lower frame 2c along the horizontal direction. In the first closing cylinder 3, a push plate 3b having a pentagonal shape in a vertical sectional front view is fixed to the tip of the piston rod 3a,
A push plate receiving portion 24 is fixed to the inner surface of the lower frame 2c on the right side facing the tip of the push plate 3b. Therefore, by driving the first closing cylinder 3, the lower end portion of the filter medium 1 is sandwiched and pressed between the pressing plate 3b and the receiving portion 24, and the lower end opening of the filter medium 1 is closed. In the second closing cylinder 5, a push plate 5b having a pentagonal shape in a longitudinal sectional front view is fixed to the tip of the piston rod 5a, and the inner surface of the upper frame 2a on the right side facing the tip of the push plate 5b. A push plate receiving portion 23 is fixed to the. Therefore, by driving the second closing cylinder 5, the upper end portion of the filter medium 1 is sandwiched between the pressing plate 5b and the receiving portion 23 and pressed to close the upper end opening of the filter medium 1. The pressing cylinder 4 supports a pressing plate 4b at the tip of a cylinder case 4a for accommodating the piston rod, and the driving of the pressing cylinder 4 causes the cylinder cake 4a to move toward the filter medium 1 side with respect to the piston rod, thereby pressing the pressing plate 4b. Is pressed from the left side surface to the right side surface of the filter medium 1, and the cake in the filter medium 1 is squeezed between the pressing plate 4b and the support frame 2 to perform squeeze filtration.
Handles 45, 45 are attached to the upper portions of both sides of the pressing plate 4b, and slide on the guide rails 40, 40 to guide the movement of the pressing plate 4b.

At the center of the upper part of the surface of the pressing plate 4b on the filter medium side, the third
As shown in FIGS. (B) and (c), a level sensor 41 for detecting the liquid level of the stock solution supplied into the filter medium is attached. This sensor 41 is arranged in a recess of a vertical groove formed on the surface of the pressing plate 4b on the filter medium side, and its surface is made to be substantially the same as the surface of the protruding portion between the vertical grooves.
The surface of the sensor 41 is adapted to react with the stock solution supplied into the filter medium 1 and permeating the filter medium 1, as shown in FIG. 3 (d).
As shown in FIG. 5, a signal is output when the undiluted solution contacts the sensor 41. The lead wire 42 extending from the back surface of the sensor 41 is electrically connected to a terminal 43 fixed to the side surface of the pressing plate 4b through the pressing plate 4b. This terminal 43 is connected to the control device 46 as shown in FIG. The control device 46 is arranged in a control plate (not shown). The control device 46 includes a stock solution supply stop circuit.
A stock solution supply pipe 33, which will be described later, is controlled via 51, the first closing cylinder 3 is controlled via a first closing cylinder drive circuit 47, and the second closing cylinder 5 is driven via a second closing cylinder drive circuit 48. Is controlled, the pressing cylinder 4 is controlled via the pressing cylinder drive circuit 49, and the vibration imparting cylinders 12, 13, 14, 17 are controlled via the vibration imparting circuit 50.

On the other hand, the support frame 2 is supported by the columns 30, ..., 30 on the installation floor 31, and a filtrate receiving member and a cake collecting member are provided in a space below the support frame 2. That is, a chain 27 is hooked between the pair of sprockets 26, 26 from below the support frame 2 to near the bottom thereof, and the filtrate tray 25 is locked to the chain 27. Therefore, by driving the chain 27 forward and backward, the filtrate receiving tray 25 moves between the filtrate receiving position A below the filter medium 1 in the support frame 2 and the retracted position B retracted from below the filter medium 1. Further, below the filtrate tray 25, a cake collecting conveyor 29 for collecting cake is provided, and the conveyor 29 collects the cake dropped by its own weight from the filter medium 1 and conveys it to a predetermined location. In FIG. 2, reference numeral 32 is a guide plate for guiding the cake dropped from the filter medium 1 onto the conveyor 29.

The stock solution supply member is provided with a stock solution supply pipe 33 above the filter medium 1 as shown in FIG. 7, and the stock solution is supplied from the upper end opening of the filter medium 1 to the inside of the filter medium 1 under the control of the supply control valve. Supply to the filter room. As this undiluted solution, for example, 0.
There are various liquids, such as liquids containing about 1 to 2% solids, or liquids containing several% or more solids suitable for filtering with a filter press.

According to the above configuration, as shown in FIG. 5, the filter medium 1 is suspended and supported in the support frame 2 by the spring 8 and the cylinders 12, 13, 14, 17 in the shape of a rectangular tube.

Next, as shown in FIG. 6, the controller 46 drives the first closing cylinder 3 via the first closing cylinder drive circuit 47 to close the lower end opening of the filter medium 1. At this time, the piston rod 14a of the vibration imparting cylinder 14 at the lower end moves to the right side in the drawing so that the second support cord 1b of the filter medium 1 is not overloaded. Further, the filtrate receiving tray 25 is moved from the retracted position B to the filtrate receiving position A by driving the chain 27 so that the filtrate can be received.

Then, as shown in FIG. 7, in the bag-shaped filter medium 1 with the lower end closed, with the stock solution supply pipe 33 of the stock solution supply member under the control of the controller 46 from the upper end opening of the filter medium 1. The stock solution is supplied and filtration is performed. At this time, the filtrate dropped from the filter medium 1 is received by the filtrate receiving tray 25, and the filtrate collecting member
Recovered from 28. When the liquid level 44 of the undiluted solution supplied into the filter medium 1 reaches a position where it can contact the sensor 41, as shown in FIG. 3 (d), the undiluted solution that permeates from the filter medium 1 contacts the sensor 41. To wet the surface. Sensor
When 41 detects the wetting of its surface, a signal is output, and the above signal is input to the control device 46. By this signal input,
In the controller 46, the second closed cylinder 5 is driven via the second closed cylinder drive circuit 48 at the same time as stopping the supply of the undiluted liquid by the undiluted liquid supply pipe 33 via the undiluted liquid supply stop circuit 51 or after a predetermined interval. Then, as shown in FIG. 8, the upper end opening of the filter medium 1 is closed. At this time, the piston rod 12a of the vibration imparting cylinder 12 at the upper end moves to the right side in the figure so that the second support cord 1b of the filter medium 1 is not overloaded.

Then, as shown in FIG. 9 and FIG. 3 (e), the control device 46 pushes the pressure cylinder 4 through the pressure cylinder drive circuit 49.
Is driven to gradually press the filter medium 1 between the pressing plate 4b and the support frame 2 to squeeze the cake 34 in the filter medium 1. At this time, the piston rod 13a of the vibration imparting cylinder 13 in the middle portion moves to the right side in the figure so that the second support cord 1b of the filter medium 1 is not overloaded.

Then, after the squeeze filtration is completed, as shown in FIG. 5, the control device 46 drives the pressing cylinder 4 in the reverse direction to release the squeezing of the filter medium 1 by the pressing plate 4b, and the filtrate receiving tray 25 is moved from the filtrate receiving position A to the above. It is moved to the retracted position B. In addition, the control device 46, the first and second closed cylinder drive circuit 47, 48 through the first
The first and second closing cylinders 3 and 5 are driven in reverse to open the upper and lower end openings of the filter medium 1, and the cake 34 in the filter medium 1 is dropped below the filter medium by its own weight and collected by the conveyor 29. At this time,
The controller 46 drives the vibration imparting cylinders 12, 13, 14, 17 via the vibration imparting circuit 50 to impart vibration to the filter medium 1, and the spring 8 repeatedly contracts due to the vibration imparted to the filter medium 1. The vibration is increased to give vibration to the entire filter medium 1.
The vibration imparting cylinders 12, 13, 14 and the vibration imparting cylinders 17 are alternately driven, whereby the filter medium 1 is alternately pulled from directions different by 90 degrees, and vibration can be imparted to the entire filter medium. When the vibration imparting cylinders 12, 13, 14 are driven, the filter medium 1 moves in the left-right direction in FIG.
The entire upper and lower frames 2d supporting 1a are moved by the rolling rollers 22, ..., 22 with respect to the support frame 2 so that the filter medium 1 is not overloaded. The cake 34 attached to the filter medium 1 is also separated from the filter medium 1 by the vibration application and drops, and is collected by the conveyor 29. When the cake 34 is collected, the first closing cylinder 3 is driven by the control device 46 through the first closing cylinder drive circuit 47 as shown in FIG. Close the lower end opening.

In addition, in the above-mentioned filtration, when the press filtration is not performed, the stock solution is supplied to the filter medium 1 whose lower end opening is closed, and when the filtration work is completed, the filtrate tray 25 is moved to the retreat position B, and The first closing cylinder 3 is driven in reverse to open the lower end opening of the filter medium 1, and the filter medium 1 is vibrated by the vibration applying member.
The cake is discharged while applying vibration to it.

According to the above-described embodiment, the supply state of the undiluted solution supplied into the filter medium 1 can be monitored by the sensor 41, and when the undiluted solution is supplied up to the predetermined liquid level, the signal from the sensor 41 is sent to the control device 46. Since the control device 46 drives the stock solution supply stop circuit 51 and the second closing member drive circuit 48 respectively, the upper end opening of the filter medium 1 is automatically closed by the second closing cylinder 5. Can enter the filtration work. Therefore, since the supply of the undiluted solution into the filter medium is stopped, the complicated work of visually observing the liquid level of the undiluted solution supplied into the filter medium becomes unnecessary. Therefore, it becomes possible to automatically perform all the filtration steps from the closing of the lower end opening of the filter medium 1 to the cake discharging step through the supply of the undiluted solution, and the time of the filtration step can be further shortened. Further, since it is not necessary to visually observe the supply state of the undiluted solution, it is possible to prevent the danger that the undiluted solution is scattered and the worker is splashed when the undiluted solution is supplied. Further, it is possible to prevent the undiluted solution from overflowing from the filter medium 1 by mistake during visual inspection, and a cleaner work can be performed.

Further, when the cake is discharged, the filter medium 1 is provided by the vibration applying member.
Since the vibration is applied to the cake, the cake 34 attached to the filter medium 1 can be smoothly discharged, and the discharge efficiency of the cake 34 can be improved. Further, by driving the pressing cylinder 4, the cake 34 in the filter medium 1 can be squeezed by the pressing plate 4b, and the filtration efficiency of the stock solution can be further improved. Further, the filter medium 1 can be formed into a bag shape by simply sandwiching the lower end portion of the filter medium 1 between the push plate 3b of the first closing cylinder 3 and the receiving portion 24 thereof, while the filter medium 1 is driven by the reverse drive of the cylinder 3 described above. When the lower end is unpinched, the opening of the lower end of the filter medium 1 is forcibly opened by the weight of the cake 34, and the cake 34 is discharged. It will be easy. If the vibration applying cylinders 12, 13, 14 and the vibration applying cylinder 17 are alternately driven, the direction in which the filter medium 1 is pulled by the cylinders 12, 13, 14 and the cylinder 17, that is, the vibration direction is 90 degrees.
And the vibration can be sufficiently applied to the filter medium 1. Further, when the filter medium 1 is locked to the vibration imparting cylinders 12, 13, 14, 17 and the spring 8 via the support cords 1a and 1b, if it is detachably locked by, for example, tying, the support cords 1a and 1b are The connection with the cylinder and the spring can be easily released by unwinding the knot. Also,
The filter chamber composed of the filter material 1 having the rectangular tubular shape has an entire effective filtration area in the entire circumference of the filter chamber as compared with the filter chamber formed between a pair of filter cloths arranged between the adjacent filter plates. In addition, since the shape of the filter chamber can be freely changed, there is a large degree of freedom, the filter medium has various effects such as easy swinging, and the cake 34 is easily separated from the filter medium 1. The filtration efficiency can be significantly improved as compared with the type of filtration device.

The present invention is not limited to the above embodiment,
It can be implemented in various other modes.

The sensor 41 is not limited to the sensor that detects the liquid level of the stock solution supplied to the filter medium 1. For example, when freshly fired juice or bean paste as a stock solution is promptly supplied into the filter medium 1, a sensor for detecting the temperature of the stock solution or a pH of 5 to 6 is used.
It may be a sensor for detecting the hydrogen ion concentration of an undiluted solution of apples or oranges prepared to some extent.

In addition, the spring 8 and the cylinder 1 that support the filter medium 1
2,13,14,17 directly filter medium body 1c without interposing support cords 1a, 1b
It may be configured to be connected to. Further, the number of support points of the filter medium 1 and the number of support cords at each point can be arbitrarily increased or decreased depending on the length of the filter medium 1 in the vertical direction. Further, as a support structure of the filter medium 1, one corner of the filter medium 1 is fixed to the support frame 2, and a corner opposite to the fixed corner is supported by the vibration imparting cylinders 12, 13, and 14. At the same time, the remaining two corners are supported by the spring 8, and the vibration imparting cylinder 1
Vibration may be applied to the filter medium 1 by driving 2, 13, and 14. Further, the filter medium 1 may be suspended and supported only by a spring, and the filter medium 1 may be tapped at a predetermined time to give vibration. Further, the filter medium 1 is not limited to the rectangular cylinder, and may have any polygonal shape such as a triangular cylinder and a pentagonal cylinder. Further, the first and second closing cylinders 3, 5 and the pressing cylinder 4 may be air cylinders or hydraulic cylinders, and the same operation can be performed by other known driving means. The pressing action of the pressing cylinder 4 on the filter medium 1 is not limited to pressing from one direction, and the filter medium 1 may be pressed from two directions.

[Brief description of drawings]

1 to 3 (a) are a front view, a right side view and a plan view showing a filter device according to an embodiment of the present invention, and FIGS. 3 (b) and 3 (c) are filters showing the arrangement of sensors. A perspective view and a front view of a main part of the apparatus, FIG. 3 (d) is an explanatory view showing the operating state of the sensor, and FIG. 3 (e) shows a state in which the pressing plate having the sensor is performing squeeze filtration. FIG. 3 (f) is a block diagram showing the relationship between a sensor and the like and the control device, FIG. 4 is a schematic perspective view of the filter medium, and FIGS. 5-9 are the operations of the filtration device. It is a partial cross-sectional side view which shows a state in order. DESCRIPTION OF SYMBOLS 1 ... Filter material, 1a ... 1st support string, 1b ... 2nd support string, 1c ... Filter material main body, 1d ... Hanging support string, 2 ... Support frame, 2a ... Upper frame,
2b ... middle frame, 2c ... lower frame, 3 ... first closing cylinder, 3b ... pressing plate, 4 ... pressing cylinder, 4b ... pressing plate, 5 ... second closing cylinder, 5b ... pressing plate, 6 ... filter material suspension frame, 7 ... Support rails, 8 ...
Spring, 9,10,11,18,19,20,21 ... Roller, 12,13,14,17 ... Vibration imparting cylinder, 15 ... Rolling roller, 16 ... Spring, 22 ... Rolling roller, 23, 24 ... Press receiving part, 25 ... filtrate saucer, 26 ... sprocket, 27 ... chain, 28 ... filtrate collecting member, 29 ... conveyor, 30 ... pillar, 31 ... installation floor, 32 ... guide plate, 33 ... stock solution supply pipe, 34 ... cake , 40 ... Guide rail, 41 ... Sensor,
42 ... Lead wire, 43 ... Terminal, 44 ... Liquid level, 45 ... Grip, 46 ... Control device, 47 ... First closed cylinder drive circuit, 48 ... Second closed cylinder drive circuit, 49 ... Pressing cylinder drive circuit, 50 ... Vibration Supply circuit, 51 ... Stock solution supply stop circuit.

Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical display location B01D 29/38 580 E 580 C 580 H

Claims (4)

[Scope of utility model registration request] 1. A tubular filter medium (1), a support member (2) for suspending and supporting the tubular filter medium (1), and an interposing member between the filter medium (1) and the support member (2). A vibration imparting member (8, 8) that holds the filter medium (1) in a stretched state and imparts vibration to the filter medium (1) when the cake is discharged.
12,13,14,17) and the lower end opening of the filter material (1) is closed to form the filter material (1) into a bag shape, and after filtration, the lower end opening of the filter material (1) is closed. A first closing member (3) for releasing and opening the lower end to discharge the cake in the filter medium, a stock solution supply member (33) for supplying a stock solution into the filter medium, and an upper end part of the filter medium (1) A second closing member (5) for closing the opening, a second closing member drive circuit (48) for driving the second closing member (5), the stock solution and the first and second closing members ( 3,
A pressing member (4) for pressing and filtering the filter medium (1) whose upper and lower end openings are closed by 5), and a wall surface for pressing the filter medium upper part of the pressing member (4), and A sensor (41) that detects a liquid component that permeates the filter medium out of the stock solution supplied into the filter medium and outputs a signal, and the supply of the stock solution to the filter medium (1) by the stock solution supply member (33) is stopped. When a signal output from the undiluted liquid supply stop circuit (51) and the sensor (41) is received, the undiluted liquid supply stop circuit (51) is driven to stop the undiluted liquid supply by the undiluted liquid supply member (33). In addition, the second closing member drive circuit (48) is driven to close the upper end opening of the filter medium (1) by the second closing member (5), while the pressing member (4) and the vibration applying member are also closed. (8,12,1
And a control device (46) for respectively driving (3, 14, 17), and a filtration device. 2. The vibration imparting member (8, 12, 13, 14, 17) comprises a spring (8) and a vibration imparting cylinder (12, 13, 14, 17), and the vibration imparting cylinder (12, 13). The filter device according to claim 1, wherein the filter medium (1) is vibrated by the driving of (14, 17) and the biasing force of the spring (8). 3. The filter medium (1) comprises a polygonal cylindrical filter medium body (1c), the filter medium body (1c) and the vibration imparting member (8,
The filtering device according to claim 1 or 2, further comprising a connecting member (1a, 1b) for connecting (12, 13, 14, 17). 4. A stock solution supply member (33) for supplying a stock solution into the filter medium (1) through an upper end opening of the filter medium (1) having a closed lower end. The filtration device according to claim 1.