JPS582410Y2 - filter press - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a filter press.

In a filter press, a plurality of filter plates are loaded into a machine frame, a filter cloth is interposed between each filter plate, the filter plates are brought into close contact with each other, and a hole in the center of each filter plate is inserted into the filter cloth. The liquid to be treated is forced in, the solid content in the liquid to be treated accumulates inside the filter cloth, and the filtrate is forced out of the filter cloth, flows down the gap between the filter cloth and the filter plate, and is discharged from the filter plate part. It is something.

In order to bring the filter plates into close contact with each other, a pressure plate operated by a screw mechanism or hydraulic pressure is disposed at one end of the filter plate, and the pressure plate presses the filter plate from one side.

After the filtration process, the pressure plate is retracted to open the space between each filter plate and remove the solid content accumulated on the filter cloth.
When opening each filter plate, the filter plate is heavy and the adhesive resistance of the solids accumulated on the filter cloth is large, making it extremely difficult to open the filter plate manually.

Recently, automatic opening/closing machines for filter plates of filter presses have been provided.

This type of automatic opening/closing machine uses a method in which the filter plate is conveyed by gripping both sides with claws that are moved by compressed air, and a conveyor is placed at both ends or one end of the machine frame, and the filter plate is slid up and down from both sides or one side. There is a method of conveying the filter plate by placing a mechanism that presses and releases the filter plate onto the conveyor and presses the mechanism onto the conveyor.

However, such conventional technology has an extremely complicated mechanism and is expensive.

For example, in the case of a compressed air type, a claw gripping mechanism, a conveying mechanism using compressed air, etc. must be incorporated into the filter press, and in the case of a conveyor type, a mechanism for vertical sliding must be incorporated.

Such a mechanism is not only complicated and expensive, but also tends to break down, making filtration work difficult.

The purpose of the present invention is to improve the drawbacks of the prior art as described above and to separate each filter plate of a filter press with a simple mechanism. The main idea is that if a contact portion is provided and one side of the filter plate is lifted to tilt the filter plate, the contact portion will come into contact with the conveyor and the filter plate will be separated by the conveyor.

To explain the present invention with reference to an embodiment shown in the drawings, 1 is a machine frame, and front and rear frames 1a and lb are erected on an underframe 1d,
Side frames 1c and lc are provided on both sides between the front and rear frames 1a and 1b, and a large number of filter plates 2 are arranged in parallel inside the machine frame 1.

The filter plate 2 has a central hole 3a in the center and many protrusions 3b on the surface.
, has a guide hole 3C at the lower part, a support arm 3d is extended from a side edge, and a handle 3e, which is another support arm, is extended from the other side edge, and a roller 4 is rotatable on the support arm 3d. installed in
The roller 4 rides on a rail 1e having a circular cross section and laid on the upper surface of the side frame 1C.

As shown in FIG. 4, the roller 4 is formed with a groove 4a having an inner surface shape adapted to the shape of the rail 1e.

At the end of the filter plate 2, there is a pressing plate 6 to which a traction rod 5 is fixed.
is placed.

The traction rod 5 is screwed into a female screw block 9 with a drive gear 8 provided at the end of the machine frame 1.

Drive gear 8 communicates with electric motor 10 via gear 9'.

Reference numeral 18 denotes a plate that is pivoted below the side frames 1a and lb.

In the above filter press, a rail 1f is further provided on the upper surface of the side frame IC (left side in FIG. 2) on the support arm 3d side of the filter plate 2.
is laid outside the rail 1e, and the rail 1f guides the chain conveyor 7 on the rail 1f.

Chain conveyor 7 is driven by electric motor 13.

A conveyor contact block 11 is fitted onto the support arm 3d of the filter plate 2, and a bolt 12 is screwed onto the upper surface of the contact block 11, so that when the filter plate 2 is tilted using the rollers 4 as a fulcrum, The contact block 11 is fixed to the support arm 3d so as to be able to adjust its position so as to contact the upper surface of the chain conveyor 7.

The upper edge of the outer side plate 7A of the chain conveyor 7 is positioned higher than the upper edge of the inner side plate 7B, so that when the filter plate 2 is tilted about the rollers 4, the end face of the conveyor contact block 11 is It is configured so that it can be abutted and locked on the side plate 7A.

When performing filtration with the filter press of the present invention, the filter cloth 23 folded in half is mounted and covered on the filter plate 2, and the center part of the filter cloth 23 is inserted through the center hole 3a of the filter plate 2 as shown in FIG. It is fixed by screw type fittings 24a24b.

Next, the drive gear 8 is driven by the electric motor 10 via the gear 9'.
By driving and rotating the female thread block 9, the traction rod 5 is moved in the direction of arrow A in FIG. Make it in close contact.

Thereafter, the pump 19 passes the water to be treated through the pressure adjustment tank 21 equipped with a pressure gauge 20 to the filter plate 2 from the press-in pipe 22.
It is press-fitted into each filter cloth 23 interposed therebetween.

The water to be treated that is press-fitted into each filter cloth 23 is separated from solids to be dispersed by the filter cloth 23.

The solid-liquid separated treated water flows down from the filter plate 2 to the receiving plate 18 through the gap between the filter cloth and the filter plate 2 formed by the projections 3b and through the guide holes 3C.

At this time, the receiver plate 18 is placed at the solid line position. When the solid-liquid separation operation is completed, the electric motor drives the drive gear 8 through the gear 9'.
By rotating in the opposite direction, the female screw block 9 is rotated in the opposite direction, and the traction rod 5 is moved in the direction of the arrow in FIG. 1 to the dotted line position.

Furthermore, after placing the plate 18 at the dotted line position, the receiver drives the chain conveyor 7 in the direction of the arrow by the electric motor 13, and the operator moves to the side opposite to the chain conveyor 7 side (right side in Figure 2).
When the handle 3e of the filter plate 2 is slightly lifted, the filter plate 2 is tilted as shown in FIG. come into contact with.

At this time, the fulcrum of the inclination of the filter plate 2 is the roller 4 and the rail 1.
e, the rail 1e has a circular cross section, and the rail 1e
Since the roller 4 mounted on the rail 1e is also formed with a groove 4a having an inner surface shape adapted to the shape of the rail 1e, the filter plate 2 can be easily tilted without being shifted manually.

Furthermore, since the end surface 11A of the contact block 11 is abutted against and locked to the upper edge of the outer side plate 7A of the chain conveyor 7, the contact block 11 is reliably prevented from slipping when the filter plate 2 is tilted. The outer periphery of the contact block 11 is in close contact with the upper surface of the chain conveyor 7.

Thus, one support arm 3d of the filter plate 2 is connected to the contact block 1.
1, the filter plate 2 is moved by the chain conveyor 7 in the direction of the arrow in FIG. and then each separates.

When the filter plates 2 are separated from each other, the solid content accumulated in the filter cloth 23 is peeled off from the filter cloth 23 and the receiver falls onto the plate 18.

Thus, the solid content removal step is carried out. The present invention is not limited to this embodiment.

For example, instead of using a contact block, the diameter of the tip of the support arm may be simply increased, or the tip of the support arm may be bent downward.

Further, when the support arm and the top surface of the chain conveyor are close to each other, the support arm can come into contact with the top surface of the chain conveyor by tilting the filter plate without providing any mechanism on the support arm side.

In this case, the conveyor contacting portion of the support arm is defined as the conveyor contacting portion.

Further, the rail 1e may have an elliptical cross-section, a rectangular cross-section, or any other arbitrary shape.

The present invention is based on a roller that allows an operator to use one of the support arms of the filter plate, which is supported on the side frame of the machine frame as a handle, to lift the support arm and place the filter plate on the rail on the side frame as described above. If it is tilted as a fulcrum, the conveyor contacting part of the other support arm will come into contact with the top surface of the chain conveyor, and the conveyor contacting part will not be moved by the conveyor while contacting the top surface of the chain conveyor, and at the same time, the end face of the conveyor contacting part will be The filter plate is held in contact with the upper edge of the outer side plate, and by manually guiding one of the support arms toward the worker, the filter plate can be easily transported without slipping in the inclination direction. When the chain conveyor is lowered and supported by the side frame again, the other conveyor contact portion is separated from the upper surface of the chain conveyor, and the filter plate stops.

Therefore, the amount of work required for transporting the filter plate is sufficient for one person, and since the structure is extremely simple, it is inexpensive and trouble-free.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, and Fig. 1 is a front view, Fig. 2 is a sectional view taken along line AA' in Fig. 1, Fig. 3 is a side sectional view of the filter plate, and Fig. 4 is a filter plate. Enlarged partial cross-sectional view of the vicinity of the supporting arm,
FIG. 5 is a sectional view taken along the line AA' in FIG. 1 with one support arm of the filter plate lifted. In the figure 1C...Side frame, 2...Filter plate,
3d... Support arm, 3e... Handle, 7...
...Chain conveyor, 7A, 7B...Side frame, 11...Conveyor contact block.

Claims (1)

[Scope of utility model registration request] A machine frame having a pair of left and right side frames, a plurality of filter plates loaded into the machine frame by extending a pair of left and right support arms and supporting the support arms on the side frames; It consists of a chain conveyor arranged outside the side frame, and a support arm on one side is rotatably attached to a roller that rides on a rail laid on the side frame, and a support arm on the other side. In a filter press equipped with a conveyor contact part provided on one side of the support arm so as to come into contact with the upper surface of the chain conveyor when the filter plate is tilted using the rollers as a fulcrum by lifting the filter plate, the side plate on the outside of the chain conveyor When the upper edge is positioned higher than the upper edge of the inner lateral root and the filter plate is tilted,
A filter press characterized in that an end surface of the conveyor contact portion is abutted and locked to the upper edge of the outer side plate.