JPH0520403Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to plates and frames for filter presses.

BACKGROUND TECHNOLOGY Conventionally, a synthetic resin filter press frame is known in which a rectangular rigid frame is formed of synthetic resin and glass fibers are embedded in the frame.
-9188 Publication). Also, a board consisting of a frame (Jitsukaiaki
63-164907), the inner edge of the frame-like frame is formed into a wedge-shaped cross-sectional shape whose thickness decreases inwardly, and the width of the frame in the direction perpendicular to the thickness direction. There is an extension of . There is also a plate (Japanese Patent Application Laid-Open No. 63-200810) consisting of an overframe, a hanging member that suspends and supports the overframe, and a connector that is hung around the overframe to fix the overframe to the hanging member.
In addition, cloth is layered on both the upper and lower surfaces of a metal plate having a filtrate passage on its surface, and through-holes passing through the metal plate and the cloth are made at appropriate locations to form a unit, and an appropriate number of elastic spacing pieces are placed on this. Stacked on the base plate of a ram press, after surrounding the outer periphery of the metal plate of the next stage unit with the remaining edge of the cloth on at least one side of each stage unit, a fastening ring can be freely removed from the outer periphery of the metal plate. Slurry squeezing machine that is fitted and closed to form multi-stage empty chambers for slurry introduction between the metal plates of each stage (Utility Model 41-
Publication No. 19590).

Problems that the invention aims to solve The above synthetic resin frame with built-in glass fibers is
When excessively dehydrated by applying high pressure, it tends to deform in a direction perpendicular to the thickness direction, that is, toward the outside of the frame.

In addition, even if the inner peripheral edge of the frame is formed into a wedge-shaped cross-sectional shape in which the thickness decreases inward, if excessive dehydration at high pressure is performed for a long time, the deformation will gradually occur in the direction perpendicular to the thickness direction. There is a risk that this may occur. This deformation increases as the temperature of the over-dehydration process increases. Furthermore, if the above deformation occurs due to high-pressure excessive dehydration work, there is a risk that the board/frame may crack. In addition, in the above-mentioned excessive dewatering operation, the handle attached to the outer periphery of the board/frame becomes unstable, causing trouble in supporting the board/frame.

In addition, if the overframe is fixed to the hanging member using connecting tools (wires and tightening screws), the overframe can be firmly fixed to the hanging member when assembling the board/frame, but the hanging member can be fixed afterwards. It is not always easy to replace.

In addition, when tightening the remaining end of the cloth with a tightening ring, increasing the ram compression pressure makes it easier for the tightening ring to separate from the cloth around the outer periphery of the metal plate. The weight of the cake will also be applied to the surrounding areas, making it almost impossible to tighten the cloth. For this reason, there are methods of adjusting the slurry concentration or adjusting the tightening method, but this would make the device more complicated. Therefore, it is difficult to perform over-squeezing by increasing the ram squeezing pressure by stacking units equipped with this ring tightening.

Means for Solving the Problems In order to solve the above problems, the plate/frame in the filter press of the present invention includes a synthetic resin hollow frame body with parallel frame-like clamping surfaces on both sides, and the hollow frame body 1. One half of the elongated body 3 and the other half of the elongated body 5 surround each other, bases are fixed to both ends of both of these elongated bodies 3 and 5, and the elongated body is attached to the outer side of the hollow frame body. a handle forming member formed such that its tip side protrudes to the side of the hollow frame when it is wrapped around it;
A tightening member forming a handle of the tightening plate/frame by tightening one half of the elongated body 3 and the other half of the elongated body 5 wrapped around the outer side of the hollow frame, leaving a gap 8 for tightening adjustment. , consists of.

Function One half of the elongated body surrounding the plate/frame and the other half of the elongated body are wrapped around the outer periphery of the synthetic resin hollow frame body, and the handle forming members at the ends of both of the elongated bodies are tied together. Hold the grip member close to each other and tighten the predetermined portion of the handle forming member with the tightening member. Next, the tightening force of the handle forming member is adjusted in consideration of the pressure of excessive dewatering. The tightened handle forming member is placed on a support member such as a side plate or a support rail as a handle for the plate/frame, and the plate/frame is made movable on the support member.

Example An example will be described with reference to the drawings. FIG. 1 shows a front view of the frame plate according to the present invention, in which 1 is a hollow frame body made of polypropylene, 2 is a long body made of steel surrounding the outer periphery of the frame body 1,
At both left and right ends of the elongated body 3 surrounding the upper half,
An upper handle forming member 4 that projects horizontally outward from the outer periphery 10 of the frame body 1 is fixed, and lower handle forming members that project horizontally outward are attached to both left and right ends of the elongated body 5 surrounding the lower half thereof. The handle forming member 6 on the side is fixed. Reference numeral 7 denotes a bolt/nut as a tightening member for tightening the handle forming members 4 and 6, which has the handle forming member 4 of the upper elongated body 3 and the handle forming member 6 of the lower elongated body 5. , and tighten it by inserting it into the bolt hole drilled near the base of each handle forming member 4, 6.
8 connects the handle forming member 4 of the upper elongated body 3 and the handle forming member 6 of the lower elongated body 5 to the outer periphery 1 of the frame body 1.
This is the gap left when tightening above 0. FIG. 2 shows a cross section of the frame body 1 and the elongated bodies 3 and 5 that fasten the frame body 1 from its upper and lower halves. The cross section of the frame part of the frame body 1 has an elongated hexagonal shape with a frame surface 9 with both sides parallel and slightly wider than the frame thickness, and an outer periphery 10 of the frame body 1 projects in the middle. On the other hand, the elongated bodies 3 and 5 have a chevron-shaped cross section, and a groove 11 is provided inside thereof. The outer periphery 10 of the frame body 1 and the grooves 11 of the elongated bodies 3 and 5 match each other. Then, the handle forming member 4 of the upper elongated body 3 and the handle forming member 6 of the lower elongated body 5 are brought close to each other on the outer periphery 10 of the frame body 1, and bolt holes are made in both handle forming members. Insert bolt 7 and tighten.
The tightening of this bolt can be easily adjusted depending on the pressure required for excessive dehydration. However, the outer periphery 10 of the frame portion of the frame-shaped main body 1 is made flat without necessarily protruding in the middle,
The flat outer periphery may be tightened with elongated bodies 3 and 5. FIG. 3 shows a side view of the frame body 1 tightened with elongated bodies 3 and 5. The width of the outer periphery 10 of the frame body 1 is approximately the same as the width of the elongated bodies 3 and 5,
The width of the long bodies 3 and 5 is the outer periphery 10 of the frame body 1.
It may be slightly narrower than the width of . Also, the thinner the frame body 1 is, the more the handle forming member 4,
6 is also thinner, so in this case, instead of using the illustrated bolts and nuts 7, the handle forming members 4 and 6 may be tightened by sandwiching them from above and below using other means. In addition, in the figure, the handle forming member 4 of the elongated body 3 has an extension part 12 cut out from the lower side of its tip and further extended outward, and this extension part 12 is placed, for example, on the side plates A on both sides. It supports the board/frame in a movable manner. In addition, the length of the elongated body 3 in the upper half is made shorter than the length of the elongated body 5 in the lower half, and the position where the handle forming members 4 and 6 at each end are tightened is set below the outer periphery 10 of the frame body 1. Move to half,
The frame main body 1 may be supported by the handle forming member 6 of the elongated body 5 in the lower half. The size of the gap 8 between both handle forming members 4 and 6 is determined by the material of the elongated body,
It is determined by considering dimensions, tensile strength, excessive dehydration pressure, etc.

The elongated bodies 3 and 5 are tightened by surrounding the outer periphery of the frame body 1 from the upper and lower halves, but if the frame body 1 is supported by hanging from above, for example, One of the handle forming members 6, 6 may be provided with a hook portion or a through hole, and may be movably supported by being hung on a hanging device of a plate or frame.

Further, the outer periphery of the elongated body and the frame-shaped body may be, for example, as shown in FIG. 4, a band 13 having a V-shaped cross section and a V-shaped groove 14 for receiving the band.
In this example, the band 13 is difficult to come off from the groove 14 of the hollow frame body 1, and the frame body 11 can be strongly tightened. Further, since both the band member 13 and the groove 14 are V-shaped, there is no chance of loosening and burrs after tightening tightly. Further, the V-shaped band 13 and the V-shaped groove 14 may each be a wire with a circular cross section or a groove with a semicircular cross section. Further, the V-shaped groove or the groove having a semicircular cross section is formed at the periphery 10 of the frame body 1.
Two rows of grooves may be carved on the top, and the band or wire may be inserted into the two rows of grooves and tightened. Further, the shape of the frame body is not limited to the illustrated example, and may be square. If the frame body is rectangular, it may be tightened at each corner or at opposing corners. If there is a protrusion on the outer periphery of the frame body, a cut groove may be provided on the side surface of the base of the protrusion, and the elongated body may be inserted into this groove. Further, a through hole is made in the base of the protrusion, one end of the elongated body is passed through, and a handle forming member is fixed to the one end.

The plates and frames configured as described above are movably arranged with their handles placed on side plates or hanging rails that are supporting members. Also, a material is hung on one or both sides of the plate/frame to perform excessive dewatering of the slurry supplied at a predetermined filtration pressure. The above board/
When arranging the frames, a duplex filter press can be constructed by alternately arranging plates fastened by elongated bodies and frames fastened by elongated bodies, or by arranging only plates fastened by elongated bodies. A single filter press is constructed. Note that the plate formed from the frame main body may be formed by supporting a perforated plate, a net, or the like within the frame. The perforated plate is shown, for example, by reference numeral 15 in FIG. 1, but the many through holes in the thickness direction on the surface are omitted.
This perforated plate is connected and fixed within the frame body with a connecting piece 16. Alternatively, the perforated plate may be attached by making a notch on its outer periphery and sandwiching the inner periphery of the frame body between the notches. Further, numeral 17 is used as a slurry supply hole or a passage hole for other liquids. Also, the liquid discharge hole is omitted.

Effects of the invention Since the invention is configured as described above, it has the following effects.

In the plates and frames of filter presses, the hollow frames made of synthetic resin of various shapes and sizes are easily prevented from deforming in the direction perpendicular to the thickness direction even if high pressure is applied and excessive dehydration is applied. Ru. Furthermore, since the hollow frame body can be conveniently and easily tightened using the handle-forming members of one half of the elongated body and the other half of the elongated body, over-dehydration work can be safely performed with high squeezing pressure. I can do it.
Further, the entire frame body is prevented from being twisted or bent. In addition, the boards and frames can withstand excessive dehydration at high temperatures, for example 80° to 120°C, for a long period of time.

Furthermore, the hollow frame can be easily tightened on both sides or at a predetermined location. Furthermore, since one half of the elongated body and the other half of the elongated body are used, even a large hollow frame can be easily wrapped around and tightened, and can be aligned at a predetermined support position.

Also, since one half of the elongated body and the other half of the elongated body are tightened while leaving the tightening gap, the plate
Tightening of the frame becomes easy and reliable.

[Brief explanation of the drawing]

Fig. 1 is a front view of a plate made of a synthetic resin hollow frame type main body according to the present invention, Fig. 2 is a central vertical sectional view of Fig. 1, Fig. 3 is a side view of the plate of Fig. 1, and Fig. 4 is a side view of the plate of Fig. 1. The figure is a partial sectional view of a plate showing another example. 1...Hollow frame type main body, 2, 3, 5... Long body,
4, 6...Handle forming member, 7...Bolt/nut, 8...Gap, 10...Outer periphery of frame body, 1
1... Groove inside the elongated body.

Claims (1)

[Scope of utility model registration request] Synthetic resin hollow frame body 1 with parallel frame-like clamping surfaces on both sides in a plate/frame for a filter press consisting of a plate/frame body and a handle attached to the plate/frame body to support the plate/frame body.
, one half of the elongated body 3 surrounding the hollow frame body 1 and the other half of the elongated body 5 , and bases are fixed to both ends of both of the elongated bodies 3 and 5 to form the elongated body 3 . , 5 are formed such that their tips protrude to the sides of the hollow frame 1 when the handle forming members 4 and 6 are wound around the outer periphery 10 of the hollow frame 1, and the outer periphery of the hollow frame 1. Tighten one half of the elongated body 3 wrapped around 10 and the other half of the elongated body 5 to adjust the gap 8.
A plate/frame for a filter press consisting of a clamping member 7 which forms a handle of the clamping plate/frame with the remaining .