JPH01281112A - Opening and closing equipment for filter plate of filter press - Google Patents

Abstract

PURPOSE:To uniformly clamp each filter plate and to contrive cost reduction due to miniaturization by inserting a stopper provided to a dolly which is joined to a filter plate group and can be traveled on a main beam into both sides of the main beam so that the stopper is stopped in a stopping stepped part formed on both sides of the main beam. CONSTITUTION:Many filter plates 3 are contractibly hung in the longitudinal direction on the main beams 2 respectively erected between both sides of the fixed frames 1. A dolly 8 for closing the frame is travelably hung on the main beams 2 between the filter plates 3 and the frame of a base end side and the stopping parts 10 equipped with the stopping stepped parts 11 are formed on both sides of each main beam 2, respectively. The stoppers 4 which are joined to the actuation cylinders 12, attached and detached to/from both side parts of each beam 2 and also separated from the stopping stepped parts 11 are provided to the dolly 8 positioned in the tip sides of the stopping stepped parts 11. As a result, the dolly is fixed, and deflection of the main beams is prevented and both uniform clamping of each filter plate and cost reduction due to miniaturization can be easily achieved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a filter plate opening/closing device for a filter press that operates when attaching and detaching a door cloth sandwiched between each door plate.

[Conventional technology]

As shown in Japanese Utility Model Application Publication No. 59-61811, the conventional opening/closing device for the filter plate of a filter press is such that a protrusion for fixing the movement of the movable head is fixed to one side of the guide rail and provided on the movable head side. The movable head is fixed by applying strong pressure to the fixing metal so that it extends from the inside to the outside of the guide rail, or tightens it from the outside to the inside, and locks it to the protrusion.

[Problem to be solved by the invention]

However, in the conventional structure described above, (a) the reaction force of the tightening cylinder against each door panel, filtration pressure, compression pressure, etc. act on the guide rail through the protrusion, and this causes deflection in the rail. This made it difficult to tighten each door panel evenly.

(Naka) As a result of the above, it becomes necessary to install reinforcing materials to prevent deflection between the guide rails where each door board is located, or to increase the strength of the guide rail itself, which increases the size and increases the cost of the filter press. Ta.

In view of the above-mentioned conventional problems, the present invention has been made to solve this problem, and a stopper provided on a truck that is connected to the door plate group side and is movable on the main beam is By fitting into both sides of the main beam so as to lock into the recesses or protrusions formed on both sides, the trolley is fixed and the main beam is prevented from sagging, allowing for uniform tightening of each door panel and compact size. It is an object of the present invention to provide an opening/closing device for a filter plate of a filter press, which can easily achieve cost reduction through conversion.

[Means for solving problem n]

As a means for achieving this, the present invention provides a filter press in which a large number of filter plates are suspended so as to be extendable and retractable in the longitudinal direction on main dyes installed between both sides of a fixed frame. A closing frame trolley is movably suspended on the main beams of the main beams, a locking section having a locking step is formed on both sides of each main beam, and the locking section on the tip side of the locking step is formed on each of the main beams. The truck is connected to an operating cylinder and is provided with stoppers that engage and separate from both sides of each main beam, and that engage and disengage from the locking steps.

〔Example〕

The configuration of the present invention will be explained in detail below using embodiments shown in the drawings.

1 to 4 show a first embodiment of the present invention, in which a fixed frame 1.1 is installed upright at intervals in front and back positions in the longitudinal direction, and on both sides of the upper part of the fixed frame 1.1. A pair of main beams 2 made of band-shaped plates are installed horizontally and in parallel. A large number of filter plates 3 are mounted on one side of the main beam 2, and the rollers 5 mounted on the shafts 4 on both sides of the upper part are transferred, and the link mechanisms 6 on both the upper and lower sides are connected. It is suspended so that it can expand and contract in the longitudinal direction, and a loose head 7 is connected to the door plate 3 on the terminal side, which forms a series of filter plates A and is adjacent to the loose head 7. A closing frame truck 8 is mounted on the main beam 2 and connected to the loose head 7 by a tightening cylinder 9. The truck 8 is also provided with a truck drive device (not shown). The door panel group A is configured to operate uniformly by self-propulsion and to enable coordinated expansion and contraction operations. Further, locking members 10 are fixed to both the inner and outer sides of the main beam 2 on both sides of the base end side fixed frame 1 described above, and thereby a locking step portion 11 is formed at the tip of the locking member 10.

On the other hand, operating cylinders 12 are vertically fixed on the rear surface of the truck 8 on both left and right sides with a central tightening cylinder 9 in between, and the upper end of the piston rod 13 of the operating cylinder 12 is connected to the horizontal portion 15 of the stopper 14. , the horizontal part 1
Two fitting and fixing parts 16 and 16 are vertically provided at both ends of the main part 5 at an interval corresponding to the thickness and width of the main part 2, respectively.

With this structure, when performing filtration and squeezing operations, the actuating cylinder 1 installed on the trolley 8 in advance
2 to extend the piston rod 13, and the stopper 14 connected thereto is moved to the main beam 2 as shown in FIG.
The carriage 8 is then moved by the drive device in the direction in which the door panel group A is closed, and is moved to the specified position so that the fitting and fixing portion 16 of the stopper 14 is positioned above the frame as shown in FIG. When the locking member 10 fixed to the main beam 2 moves at the locking step 114 at the tip, the actuating cylinder 12 is activated t.
7 and retract the piston rod 13. Accordingly, the stopper 14 descends, and the fitting and fixing parts 16 at both ends of the stopper 14 are fitted into contact with each other from both sides so as to straddle the main beam 2t, and are locked with the locking step part 11. When the tightening cylinder 9 is pressed in this state, the door plate group A comes into complete contact, and the reaction force causes the fitting and fixing portion 16 of the stopper 14 to engage the locking stepped portion 11 at the tip of the locking member 10. The cart 8 can be completely fixed by pressure contact. By supplying slurry, etc. (not shown) into the door panel group A in this state, known slurry dewatering operations such as filtration and squeezing can be carried out smoothly and easily.

After the above-described dewatering operation, the tightening cylinder 9 is contracted to return to its original state, and the piston rod 13 of the operating cylinder 12 of the truck 8 is extended to move the stopper 14 upward. This causes the fitting fixing portion 16 to be separated from the main beam 2. Thereafter, by moving the trolley 8, the door panel group A, which had been in close contact until then, can be opened to a specified spacing state via each roller 5 and link mechanism 6. The cake formed inside each door plate 3 can be discharged by running the cloth or the like.

Next, a second embodiment of the present invention will be described with reference to FIGS. 5 and 6. This embodiment is different from the first embodiment in the structure of the stopper and the locking member that engages and disengages therewith.The main beam 2t is made relatively thicker, and each side of the main beam 2 has a longitudinal direction. A notch locking step portion 20 is formed in a concave shape.

On the other hand, bearing plates 21 are provided protrudingly from the upper portions of both ends of the truck 8, and a pair of stoppers 2 each bent in an F-shape are provided on both bearing plates 21.
2.22 is rotatably attached to the pin 26 at its bent portion, and the base end of the actuating cylinder 24 and the tip of the piston rod 25 fitted thereto so as to be extendable and retractable are attached to the upper ends of both stoppers 22, respectively. When connected, the lower adhesive portion 23 is operated to open and close.

Note that the other configurations are similar to those of the first embodiment.

With this structure, when performing filtration and squeezing operations, the actuating cylinder 24 of the truck 8 is activated in advance to contract the piston rod 25, and the adhesive portion of both stoppers 22, 22 connected thereto is compressed. 23 and 23 on both sides, the truck 8 is moved by the driving device [1] in the direction of closing the door plate group A. At this time, since both stoppers 22, 22 are open, the truck 8 can be moved smoothly without coming into contact with the main beam 2. The trolley 8 moves to the specified position, and the adhesive part 23 of the stopper 22 is attached to the locking step part 2 of the main beam 2.
When it moves to 0, the actuating cylinder 24 is actuated to extend the piston rod 25. Accordingly, the adhesive portions 23 of the stopper 22 are closed so as to sandwich each other from both sides of the main beam 2, and are fitted into the locking step portion 20 and locked, and the adhesive portions 23 of the cyst collar 22 are pressed by the tightening cylinder 9.
is brought into pressure contact with the locking step portion 20, and the trolley 8 is completely fixed. In this state, the slurry is filtered and dehydrated as in the first embodiment.

After the dehydration work, the tightening cylinder 9 is contracted to return to its original state, and then the piston rod 25 of the operating cylinder 24 of the truck 8 is contracted to remove the adhesive part 23 of the four-parter 22.
are opened to the left and right of each other and released from the locking stepped portion 20. Since the cart 8 is now movable, the platform 8 can be moved backward in the same way as in the first embodiment, and the cake formed in each door plate 3 can be discharged.

〔Effect of the invention〕

The various embodiments have been described in detail above, and as follows, the present invention forms locking step portions of the locking portions on both sides of the main beam, which fix the movement of the truck connected to the door panel group side, and The stopper is abutted from both sides so as to straddle the main beam, and is locked to the locking step, so even if a reaction force is applied when the door plate is tightened, the main beam will not touch the locking steps on the inside and outside. As the bending moment is not applied to the main beam and only a simple tensile force is applied, an equal tightening force is obtained for each door panel, and the main beam does not sag. There is no need for a reinforcing material for prevention, the size can be reduced, and the cost of the filter press can be significantly reduced.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the first embodiment of the present invention, Fig. 2 is a positive mJ view, Fig. 3 is a vertical cross-sectional view taken along line II in Fig. 1, and Fig. 4 is a plan view of the first embodiment of the present invention when the stopper is engaged. Schematic cross-sectional view of main parts,
FIG. 5 is a longitudinal side view of the second embodiment, and FIG. 6 is a schematic cross-sectional view of the main part when the stopper is engaged. 1...Fixed frame 2...Main beam 3
... Door board 8 ... Trolley 9 ...
・Tightening cylinder 10...Locking member 11...
...Locking stepped portion 12... Actuation cylinder
13...Piston rod 14...Stopper 16...Balting fixing part Fig. 3 Fig. 4 Fig. 5ffl Fig. 6

Claims (1)

[Claims] In a filter press in which a large number of filter plates are suspended so as to be extendable and retractable in the longitudinal direction on main beams installed between both sides of a fixed frame, a closing frame trolley is mounted on the main beam between the filter plates and the base end side fixed frame. A locking section is formed on both sides of each of the main beams, and a locking section is formed on each side of each of the main beams. An opening/closing device for a filter plate of a filter press, characterized in that a stopper is provided that engages and separates from both sides of the main beam and engages and disengages from the locking step.