JPS6228684B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a plate opening/closing device for a filter press in which a large number of parallel plates are opened and closed all at once to peel off cakes and wash cloth.

Conventionally, in this type of filter press, when a large number of plates were arranged in parallel to increase the oversurface area, the stroke of the hydraulic cylinder to open and close them became long, requiring a large installation area and the time required to open and close the plates. In other words, so-called idle time, which is not overly involved, has increased, and on the contrary, overefficiency has decreased.

This invention solves the above-mentioned problems of the conventional products by applying a unique twist to the opening/closing mechanism of the plate.This invention will be described in detail below with reference to the drawings. First, to explain its configuration, as shown in the figure, a large number of parallel plates 1... are divided into two groups (,) with the center as the border, and the plates 1... of these two groups (,) are opened and closed. In doing so, the plates 1... of the above two groups (,) approach each other,
It is connected to a drive device so that it can move away. To explain this more specifically, the first
2 and 2 show an overview of the filter press according to the present invention. Reference numerals 2 and 3 are left and right frames, respectively, and 4 is a guide rail installed between these frames 2 and 3. 4, a large number of the above-mentioned plates 1 are arranged in parallel.
The front and back of these plates 1... are connected to each other by a link chain 5, but there are two groups of plates whose moving directions are opposite to each other with the central part indicated by the imaginary line (X-X) as a boundary. , ), and movable heads 6 and 7 are connected to the outer ends of these plate groups (,), respectively. One of the movable heads 6, 7 (the one on the left in the figure) is connected to a piston of a hydraulic cylinder 8 provided on the frame 2. Reference numeral 9 denotes an endless chain for opening and closing the plates, which is stretched along the side of the plate row, and the parts of the chain 9 that run in opposite directions (in the figure, the chains are in the upper and lower positions). are fixed to the movable heads 6 and 7, respectively. In FIGS. 1 and 2, reference numeral 10 is a protrusion provided on the guide rail 4 in order to fix the movable head 7 when closing the plate. A stator 11 provided on a movable head 7 as shown in FIG. That is, as shown in FIG. 4, the stator 11 is slidably mounted on the movable head 7 via a dovetail groove 12, and the stator 11 is attached to the movable head 7 via a dovetail groove 12, as shown in FIG.
By driving the screw shaft 14, the movable head 7 can be moved forward and backward toward the left and right guide rails 4, 4, thereby fixing the movable head 7. Incidentally, when the plates 1 are opened, they are moved back toward the center. Furthermore, Fig. 5 shows the state in which the chain 9 is fixed to the movable head 6 on the tightening side.The chain 9 is cut on the movable head 6, and one of the chains is fixed directly to the movable head. and the other is fixed via a spring 15. The purpose of using spring 15 is to
This is to provide the necessary tightness when further tightening the closed plate 1 for squeezing. Next, what is shown in FIG. 6 is another embodiment of the present invention, in which an electric motor 16 is used as a drive machine for opening and closing the plates 1...
Several hydraulic cylinders 17 are used to tighten the closed plates 1. Reference numeral 18 is a beam for mounting this hydraulic cylinder, which is integrally constructed with the movable head 6 and the hydraulic cylinder 17 interposed therebetween. Numeral 19 is a projection for fixing the beam 18 during tightening. If such a system is adopted, the hydraulic cylinder 17 can be short, and the left and right frames 2 and 3 only need to support the weight of the plates, etc., resulting in a simple structure. The above is an explanation of the plate opening/closing mechanism and tightening mechanism of the filter press according to the present invention, and the drawings of the plate part are omitted. It is the same as the conventional machine in that it is provided in each chamber and runs during cake peeling, and that a diaphragm is provided in each chamber to perform squeezing.

Next, the operation of this invention will be explained. The plate opening/closing device in the filter press according to this invention includes:
It is constructed as described above, and therefore each plate 1...
To close the movable head 2 in FIG. 1, the hydraulic cylinder 8 pushes the movable head 2 to the right in the figure.
The chain 9 fixed thereto travels to the right, and at the same time, the chain 9 travels to the left at the right movable head 7 portion. In other words, when you press the plate group () with the hydraulic cylinder 8, the right plate group () also moves toward the center by the distance you pushed, and the left and right plate groups (), () close. , it is possible to close the plate in half the time required for closing the conventional filter press of this type. Next, in order to securely tighten the plate (Fig. 2) that has been closed in this way, as shown in Fig. 3,
After driving the motor 13 to engage the stator 11 with the protrusion 10 of the guide rail 4, by further pressing the movable head 6 with the hydraulic cylinder 8,
The left and right plate groups (), () sandwiched between the movable heads 6, 7 can be tightened. At this time, the chain 9 fixed to the left and right movable heads 6, 7 has a spring 15 interposed in the movable head 6 portion as shown in FIG. This will not cause any problems.
Note that the adjustment device for tightening the plates 1 by the hydraulic cylinder 8 is not limited to the one shown in the drawings, but may also include, for example, a sprocket with a chain 9 shown in FIGS. 1 and 2. 2
It is also possible to make the axis 0 movable and loosen the chain 9 at the time of retightening.

Next, the operation of another embodiment of the invention shown in FIG. 6 will be explained. First, when the chain 9 is moved to the right in the figure by the electric motor 16, the movable head 6 moves to the right and the movable head 7 on the other side moves to the left (not shown).
The two plate groups (), () can be moved in opposite directions to open and close them. With this system, in order to tighten the plates 1 even more strongly, the beam 18 can be fixed to the guide rail 4 with a locking device and tightened with the hydraulic cylinders 17. In this case, the means for fixing the beam 18 and the movable head 7 on the other side to the guide rail 4 may be the same as in FIGS. 3 and 4. As in this example,
If the device for opening/closing plate 1... and the tightening device for plate 1... are separated, the stroke of the hydraulic cylinder 17 can be greatly shortened, and the length of the machine is reduced by the length required for opening/closing plate 1... This has the advantage that the stroke can be shortened to almost the expected limit length.
In addition, since the clamping force for the plate is borne by the beam 18 and the movable head 7 provided on the guide rail,
The front and rear frames 2 and 3 only need to have plates that can support the weight of the movable head and the like.

As is clear from the above description, the plate opening/closing device according to the present invention divides a large number of parallel plates into two groups from the center and moves these two groups of plates in opposite directions to open and close the plates. Compared to the conventional structure in which a group of parallel plates all move in the same direction to open and close, the opening and closing stroke is only half, and the opening and closing time of the plates does not contribute at all to the conventional method. In addition, even if the hydraulic cylinder that has conventionally been used for opening, closing, and tightening the plate 1 is used as it is, the stroke can be shortened in half. , it is possible to achieve significant cost reductions. Furthermore, to take it to an extreme, even if the number of plates in the opening/closing device according to the present invention is doubled compared to a conventional filter press of this type, the machine length is only extended by the opening/closing stroke of the increased plate, and the filter press This is a major contribution to increasing the size of presses. To explain this quantitatively, for example, if we doubled the number of boards with a 6cm opening pitch from 40 to 80 using the conventional method, the opening and closing stroke alone would be 240.
cm, and if it were opened and closed using a conventional hydraulic cylinder, the stroke of the hydraulic cylinder would be 240 cm, which would add up to a total length of 480 cm, but according to this invention, the length of the aircraft would only be increased by approximately 240 cm. is sufficient. In addition, in the above explanation, the board group is divided into two groups with the central part as the border, and as a means to open and close these groups by moving them in opposite directions, a device is provided along the side of the board row. Although the chain 9 is used, the plate moving device in the present invention is not limited to this, for example, the chain may be a wire, and furthermore, the plate moving device may be connected to each plate group (), (), and these devices may be used to move the plate groups (), () in opposite directions. Further, although the above-mentioned embodiment was a horizontal type filter press, it goes without saying that the present invention can be applied to a vertical type filter press.

[Brief explanation of the drawing]

The drawings show an embodiment of the invention, and FIGS. 1 and 2 are schematic side views of a filter press according to the invention, and FIG. 1 shows the plate in an open state.
FIG. 2 also shows the closed state. Fig. 3 is a partially cutaway plan view to explain the fixed state of the movable head, Fig. 4 is a sectional view taken along line A-A in Fig. 3, and Fig. 5 is a plan view of the movable head. 6th side view for explaining the state of the chain being fixed to the
The figure shows another embodiment of the invention, and is a side view of a part of the filter press. Explanation of symbols: 1...Plate, 6, 7...Movable head, 8...Hydraulic cylinder, 9...Chain.

Claims (1)

[Claims] 1. On a guide rod installed horizontally or vertically,
A large number of filter plates 1 are movably arranged in parallel along this guide rod, and these filter plates 1 are connected to each other by a loose connecting means such as a chain, and these filter plates are closed to form a filtration chamber. In a filter press configured to open the filter plates and discharge the filter slag formed in the filter chamber, movable heads 6 and 7 are loosely attached to the filter plates at both outer ends of the filter plate row. These movable heads 6 and 7 are connected to each other by a connecting means, and these movable heads 6 and 7 are operatively connected to a drive device for opening and closing the filter plate, so that these movable heads 6 and 7 move toward and away from each other in synchronization along the guide rod. An opening/closing device for a filter plate in a filter press, characterized in that the filter plate is made to drip. 2. The filter plate in the filter press according to claim 1, wherein the driving device for opening and closing the filter plate is a hydraulic cylinder connected to movable heads 6 and 7, respectively, connected to the outer end of the filter plate row. switchgear. 3 A drive device for moving the filter plates closer to or farther from each other from both ends is connected to one movable head 6.
A hydraulic cylinder 8 is connected to a hydraulic cylinder 8, and a movable head 6 is stretched along both sides of the filter plate row, and the movable head 6 is provided at both ends of the filter plate row. , 7, the opening/closing device for a filter plate in a filter press according to claim 1, which is an endless chain 9 fixed to each of the filter plates. 4. A driving device for opening and closing the filter plates is installed on both sides of the filter plate row along the same, and the driving device running in opposite directions is provided at both ends of the filter plate row. The opening/closing device for a filter plate in a filter press according to claim 1, which comprises an endless chain 9 fixed to the movable heads 6 and 7, respectively, and an electric motor operatively connected to the chain 9. 5. The filter press according to claim 1, wherein the drive device for opening and closing the filter plate is an electric motor mounted on movable heads 6 and 7 provided at both ends of the filter plate row. Switchgear.