JPH0810355Y2 - Filter press filter plate - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter plate of a filter press (including a filter frame having no filter bed).

[0002]

2. Description of the Related Art A large number of filter plates are mounted on a pair of left and right side plates extending in the front-rear direction so as to be slidable in the front-rear direction. Provided,
In a filter press in which the movable plate is slid back and forth to open and close the filter plate through a link mechanism or the like, a pair of left and right magnet pieces are attached to the outer periphery of the frame part of the filter plate, and the filter plates are attached. It is known that adjacent filter plates are brought into close contact with each other when the plates are closed by the attraction force of the magnet pieces (see Japanese Utility Model Laid-Open No. 63-160907).

[0003]

However, conventionally, the magnet pieces are simply fixed to the outer periphery of the frame portion of the filter plate so that the polarities thereof are opposite between the front side and the rear side of the filter plate. Therefore, when vibration or impact is applied to the filter plate that is stationary on the fixed plate side of the filter plate that is being opened, the magnet piece of the filter plate on the fixed plate side separates, and the opening of the filter plate increases. However, there was the inconvenience that an unexpected accident occurred, such as an unexpected cake falling off.

According to this invention, even if the filter plate stationary on the fixed plate side is subjected to uneven vibration or impact during the plate opening operation, the magnet plate on the fixed plate side is separated and the filter plate other than planned is opened. It is intended to provide a filter plate of a filter press without a problem.

[0005]

According to the filter plate of the filter press of the present invention, at least a pair of left and right cylindrical cases are fixed to the outer periphery of the frame portion of the filter plate so that the axis of the cylindrical case faces the front-back direction of the filter plate. The magnet piece is mounted on the tubular case so that it can slide back and forth, and a part of the magnet piece can project from one end of the tubular case. It is characterized in that a part of the magnet piece is attracted to the other end of the cylindrical case of the adjacent filter plate when approaching. A stopper for limiting the amount of protrusion of the magnet piece may be provided, or the tubular case may be detachably attached to the frame portion.

[0006]

When the movable plate advances, all the filter plates are gathered on the fixed plate side, and in the closed state, each magnet piece attracts the cylindrical case of the adjacent filter plate. At the time of opening the plate, the filter plates are separated one by one from the movable plate side by a known filter plate feeding device as the movable plate retreats. At this time, the distance between the movable plate-side filter plate that started sliding and the fixed plate-side filter plate adjacent thereto reaches a certain size, and the peeling force acting between both filter plates becomes larger than the attraction force of the magnet. Up to, when the spring extends while the magnet piece attracts the cylindrical case and the distance of the filter plate reaches a certain size, the magnet piece separates from the cylindrical case. Hereinafter, by repeating this, a large number of filter plates are sent one by one from the fixed plate side to the movable plate side.

When a certain filter plate is opened, even if one of the filter plates that is stationary on the fixed plate side of this filter plate is opened due to vibration or impact, if the opened distance is small, Since the spring extends while the magnet pieces are attracted to the cylindrical case of the adjacent filter plate, the filter plate that has started to open due to the above-mentioned vibration is returned by the action of the spring. Therefore,
The opening of this filter plate becomes large and unexpected cakes will not fall off.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, 1 is a side plate of a filter press,
Reference numeral 2 is a filter plate, and F is a filter cloth. The filtrate discharge holes 5 are formed in the ears 4 projecting from the four corners of the frame part 3 of the filter plate 2, and the handles 6 projecting from the frame part 3 to the left and right. It is slidably mounted on the side plate 1 through. And this handle 6
The inverted U-shaped magnet holder 10 is detachably fitted in the above.

A cylindrical case 11 having a square cross section is fixed on the upper surface of the magnet holder 10 with its axis parallel to the side plate 1. The magnet piece 1 is attached to the front side of the cylindrical case 11.
The sliding piece 13 on the back surface of 2 is slidably fitted. This tubular case has a tension coil spring 14 (see FIG. 2).
, One end of which is locked to the rear surface side of the cylindrical case 11 and the other end of which is connected to the sliding piece 13. Have been attracted to. And the magnet piece 1
2 protrudes from the front surface of the cylindrical case 11, and the distance from the front surface of the magnet piece 12 to the back surface of the cylindrical case 11 is the filter plate 2.
Is set to be almost equal to the thickness of.

In the above structure, when the two filter plates 2, 2 adjacent to each other in the front and rear are closed, the magnet piece 12 of the rear filter plate 2 and the cylindrical case 11 of the front filter plate 2 are magnet pieces. The suction force of 12 and the pressing force of the movable plate (not shown) make a close contact. Then, when the front filter plate 2 starts sliding forward when opening, and a gap is created between the filter plates 2 and 2, the magnet piece 12 continues to be attracted to the cylindrical case 11 only by the attractive force, and the coil spring When the extension of 14 reaches a predetermined limit, the magnet piece 12 separates from the cylindrical case 11 of the front filter plate 2 and is pulled back by the elastic force of the coil spring.

In the embodiment shown in FIG. 2, a guide hole 15 in the front-rear direction is formed in the side surface of the cylindrical case 11, and a pin 16 slidable along the guide hole 15 is provided on the sliding piece 13 of the magnet piece 12.
When the pin 16 is in contact with the front end of the guide hole 15 (see the center filter plate 2), the extension of the coil spring 14 stops and the magnet piece 12 separates from the cylindrical case 11 of the front filter plate 2. It is the one. It should be noted that a plurality of types of pins 16 having different thicknesses may be prepared and replaced according to the purpose.

In the embodiment shown in FIG. 3, a grip 6 is provided in contact with the lower surfaces of the ears 4 located on the left and right of the upper end of the filter plate 2.
The cylindrical case 11 and the magnet piece 12 are attached to the lower side of the filter holder 2 via the magnet holder 10, and the fins 7 having the same thickness as the handle 6 are in contact with the upper surfaces of the ears 4 located on the left and right sides of the lower end of the filter plate 2.
And a cylindrical case 11 and a magnet piece 12 are attached to the fin 7 via a magnet holder 10 to strengthen the coupling force of the filter plate 2 by magnetic force.

[0013]

As described above, according to the present invention, the filter plates adjacent to each other in the front and rear are magnetically connected to each other, and the magnet piece is slidably mounted in the front and rear direction, and the magnet piece is biased by the spring. When the distance between the two filter plates is within a predetermined range, the magnets are arranged so as not to separate from the adjacent filter plates.
It is possible to prevent unexpected accidents such as the cake falling off due to the unplanned opening of the filter plate during plate opening work.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a side view of another embodiment.

FIG. 3 is a front view of still another embodiment.

[Explanation of symbols]

 1: Side plate 2: Filter plate 3: Frame part 4: Ear part 6: Handle 7: Fin 10: Magnet holder 11: Cylindrical case 12: Magnet piece 13: Sliding piece 14: Coil spring 15: Guide hole 16: Pin

Claims (1)

[Scope of utility model registration request] 1. At least a pair of left and right cylindrical cases are fixed to the outer periphery of the frame portion of the filter plate so that their axes are oriented in the front-rear direction of the filter plate, and the magnet pieces are slidable back and forth on the cylindrical case, and Part of the magnet piece is mounted so that it can project from one end of the cylindrical case, the magnet piece is biased toward the retracted side by a spring, and when the front and rear filter plates approach each other, a part of the magnet piece is attached to the adjacent filter plate. A filter plate for a filter press, characterized in that it is attached to the other end of a cylindrical case.