JPH0732843B2 - Filter paper supply device for multi-stage filter plate type filter device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for supplying filter paper to each stage of filtration space in a multi-stage filter plate type filtration device.

[0002]

2. Description of the Related Art Conventionally, in a multi-stage filter plate type filter device, a set consisting of a stock solution plate, a filtrate plate therebelow and a filter paper as a filter material sandwiched therebetween is laminated in a plurality of stages, usually 5 to 6 stages. It has a constitution and is used for filtration of liquids in the chemical industry, food industry, environment purification industry and the like, and is particularly preferably used for filtration of viscous liquids.

The stock solution to be filtered introduced into the stock solution plate at each stage of this type of filtration device is filtered by passing through a filter paper set therein, and the filtrate flows down to the filtrate plate and is discharged through an appropriate pipe. It As the filtration time elapses, solid matter accumulates on the filter paper, which is the filtration surface, causing so-called clogging, and the filtration performance deteriorates. Therefore, the filter paper is replaced at appropriate time intervals or when the filtration performance deteriorates.

FIG. 7 shows a conventional filter paper supply device, in which a filter paper 1 is held between a stock solution plate 2 and a filtrate plate 3 via a conveyor having a liquid permeation / transport surface, and a cylinder is used when replacing the filter paper. The tightening by 4 is released, and the filter paper after use is removed by the operation of the conveyors at each stage. In the conventional structure, as shown in FIG. 7, a new filter paper is supplied with a roll of rolled filter paper stock 1a and a feed roller 5 installed in each stage, and therefore a filter paper supply device provided in each stage. To supply the filter paper. Reference numeral 6 in FIG. 7 is a wire mesh for supporting the filter paper, 7 is a stock solution tank, 8 is a pump for introducing the stock solution into the stock solution plate 2 of each stage, and 9 is a filtrate tank.

[0005]

Therefore, in the conventional structure, a filter paper supply device including a filter paper roll 1a, a feed roller, a motor for driving the filter paper, and a control member is installed in each stage of the filter device. Therefore, the filtration device becomes expensive and the mounting space
There was a problem that it needed a large amount of space.

An object of the present invention is to solve the above-mentioned problems of the prior art. Therefore, there is provided a filter paper supply device of a multi-stage filter plate type filter device which can be constructed with a small required space and at a low cost. Is to provide.

[0007]

A filter paper supply device according to the present invention is provided near one end of a multi-stage filter plate type filter device, and has a vertically movable support base and a device for vertically moving the support base.
And a feed roller and a driven roller and a movable cutter installed on the support table, and a control device for temporarily stopping the support table at each stage of the filter paper supply position.

[0008]

When the filter paper is supplied, the moving device is operated, and the control unit sequentially stops the support table at each filter paper supply position.
When the supporting table is stopped at a predetermined position, the feed roller is driven to rotate, and the filter paper is sandwiched between the follower roller and fed out, and the filter paper is supplied to the filtration area between the stock solution plate and the filtrate plate at that stage, and then the cutter. The operation of-cuts the filter paper, moves to the next stage,
Similarly, filter paper is supplied.

[0009]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 shows a state in which a filter paper supply device according to the present invention is installed at a predetermined position close to one end of a multi-stage filter plate type filter device, 1 is a filter paper, 2 is a stock solution plate, 3 is a filtrate plate, Reference numeral 4 is a cylinder for tightening the filter plate, 2a is a pipe for introducing a stock solution, and 3a is a pipe for discharging a filtrate. In the illustrated example, the filtration device has two stages, but generally, as shown in FIG. 6, a set including a stock solution plate, a filtrate plate, and a filter paper is laminated in a plurality of stages.

The filter paper supply device 10 includes a support base 12 which is vertically moved along a machine frame 11 including a pair of columns,
A feed roller 13 for feeding the filter paper, a driven roller 14 for sandwiching the filter paper 1 and contacting the feed roller, and a cutter 15 for cutting the filter paper are installed on the support base. The device is also equipped with a single filter paper roll 1a in the appropriate position. Preferably, the shaft 16 of the roll 1a is connected to a rewinding motor 17.

In order to move the support 12 up and down, as shown in FIGS. 1 to 3, sprockets 18 and 19 arranged at the top and bottom of the machine frame 11 and a chain 20 engaging them are installed on both sides. The chain is driven by the motor 21. Each chain is fixed to the side plates 12a and 12b of the support base. 22 is a balancer fixed at an appropriate position of the chain. Obviously, the vertical movement of the support 12 may be performed by another device or mechanism such as a rack and pinion or a screw mechanism.

As shown in FIGS. 2 and 3, the feed roller 13 has a gear 23 attached to its shaft, and the gear meshes with a reverse rotation preventing clutch built-in gear 24, and via the gear and lever 25. It is rotated by the cylinder 26.
That is, the reciprocating motion of the cylinder 26 is converted into a rotary motion,
The feed roller 13 is driven by a predetermined number of revolutions. It is obvious that the feed roller 13 may be driven by a motor.

The driven roller 14 is movable up and down by a cylinder 27. When the filter paper is supplied, the driven roller 14 sandwiches the filter paper and contacts the feed roller 13. Further, as shown in FIG. 4, the cutter 15 is movably provided along the support base 12 or along a guide rail 28 provided in parallel with the feed roller 13, and the belt wheels on both sides of the support base are provided. 29, a belt 30 hung between them, and a motor 31 for driving one of the pulleys are installed, and a mounting plate 32 of the cutter 15 is connected to the belt 30 to be moved. .

Further, as shown in FIG. 4, the cutter 15
Is pivoted at one end and is pivoted through a link 33.
A lever 35 which is connected to a spring 34 which determines its position.
Connected to. The link 33, the lever 34, and the spring 35 are installed on the mounting plate 32. Lever 34
There are stoppers 36 and 37 at appropriate positions along the belt 30 for abutting and changing the direction of the cutter 15 so as to project or retract the cutter 15. In addition, the cutter movement mode
Position detecting switches 38 and 39 for stopping the operation of the motor are provided at appropriate positions on the support 12.

As shown in FIGS. 3 and 5, a pressing plate 40 and a base plate 41 are installed in the vicinity of the feed roller 13 in order to press the filter paper when cutting the filter paper, and the shaft 4 of the pressing plate 4 is installed.
0a is connected to the cylinder 43 via a link 42 (FIG. 3). Therefore, the operation of the cylinder 43 presses and holds the filter paper 1 between the pressing plate 40 and the base plate 41 therebelow. The shaft and base plate of these holding plates are the side plates 12 on both sides.
It is attached between a and 12b.

Further in connection with the operation of the chain 20, for feeding the filter paper 1 to each stage of the filter device, as shown in FIG.
A position detecting switch 44 as a control device for temporarily stopping the support 12 at an appropriate position of each stage, that is, a filter paper supply position,
45 and 46 are installed. It goes without saying that these position detection switches are installed in the number corresponding to the number of stages of the filtering device. The control device may be other means, for example, a stopper related to the control system.

Next, the operation will be described. When the filter paper 1 is clogged due to the passage of the filtration time, the filtration pressure increases and filtration cannot be performed by the pressure of the pump 8. Therefore, the filter paper is replaced. At that time, the tightening by the cylinder 4 is released, and the used filter paper is moved by the operation of the conveyor 47 (FIG. 1) provided at each stage, and is removed by the shoot 48. At the same time, the motor 21 is operated to move the support 12 upward or downward through the chain 20, and the support is stopped by any switch, for example, the switch 44, and the filter paper is supplied to that stage.

When the filter paper is supplied, the feed roller 13 is rotated by the operation of the cylinder 26 to supply the filter paper 1 for a predetermined length. At this time, the driven roller 14 is lifted by the cylinder 27, so that the driven roller 14 is in contact with the feed roller 13 while sandwiching the filter paper, and the holding plate 40 is separated from the base plate 41. When the filter paper of a certain length is supplied, the holding plate 40 is lowered by the cylinder 43 with respect to the base plate 41 to hold the filter paper,
The filter paper is cut. As is clear from FIGS. 1 and 5, there is a holding plate 40 in front of the feed roller 13 (in the filter paper feeding direction), and a cutter 15 in front of it.

The cutting of the filter paper is carried out by the operation of the motor 31 through the belt 30 and the mounting plate 32, the cutter 15 and the support base 1.
2 from one end (position a) to the other end (b)
Position), ie across the filter paper, and cut the filter paper. At the position b, the lever 34 hits the stopper 37, the cutter 15 is slightly raised and detected by the switch 38, the motor 31 is rotated in the reverse direction, and the cutter 15 is held in the raised position a. Return to the position, then lever 34
Hits the stopper 36 and lowers the cutter 15 again. The return to the a position is detected by the switch 39, and it stops at the a position and stands by. At that time, driven roller 1
The cylinder 4 descends by the cylinder 27 and separates from the feed roller 13.

Then, the motor 21 is actuated again to move the support base 12 to the next position detection switch 4 through the chain 20.
After moving to a position stopped by 5, the above operation is repeated, a filter paper is supplied between the stock solution plate and the filtrate plate of the stage, this operation is performed for each stage, and a new filter paper is supplied to each stage.

[0021]

As described above, according to the present invention, the filter paper can be supplied to each stage of the filtration device sequentially by stopping the support table provided with the feed roller and the cutter. It is not necessary to equip each stage with a filter paper roll and a filter paper supply device, and a single device can supply the filter paper. Therefore, the filter paper supply mechanism for the multi-stage filter plate type filter device can be remarkably simplified, the required space can be reduced, and the cost can be significantly reduced. Further, since this filter paper supply device is installed close to one end of the filter device, it can be easily attached to the existing filter device only by adjusting the stop position of the support base by the control device.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a filter paper supply device according to an example of the present invention is installed in a filter device.

FIG. 2 is a front view of the filter paper supply device shown in FIG.

FIG. 3 is a side view of the filter paper feeder.

FIG. 4 is a front view showing a main part of the filter paper feeder.

5 is a cross-sectional view taken along the line AA of FIG.

FIG. 6 is a side view which schematically shows a state in which the filter paper supply device according to the present invention is installed in the filter device.

FIG. 7 is a side view schematically showing a conventional filter paper supply device.

[Explanation of symbols]

 12 support base 13 feed roller 14 driven roller 15 cutter 20 moving device 44 control device 45 control device 46 control device

Claims (1)

[Claims] 1. A multi-stage filter plate type filter device in which a set consisting of an undiluted plate, a filtrate plate placed below it, and a filter paper sandwiched between them is provided in a plurality of stages to automatically supply the filter paper. In the apparatus described above, a support base that is vertically movable in a horizontal state, a feed roller that is provided along the support base and is driven to rotate, and a filter paper to be supplied are sandwiched between the support roller and the feed roller. A driven roller for obtaining, a cutter adapted to move along the support for cutting the filter paper, a device for moving the support up and down, and the support in relation to the moving device. A filter paper supply device for a multi-stage filter plate type filter device, comprising: a controller for temporarily stopping the table at each stage of filter paper supply position of the filter device.