JPS5820287B2 - "RO" cloth stretching device in filter press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a furnace fabric stretching device in a filter press.

In a center-feed type filter press, after filtration is completed, the door plates are sequentially separated, and when the furnace cloth is tilted, the furnace cloth is vibrated, making it easier to drop and remove the cake attached to the furnace cloth. Many expansion devices have been proposed.

In these conventional oven cloth spreading devices, the upper part of the oven cloth is tilted and vibrated, but the vibration is difficult to transmit to the lower part of the oven cloth below the raw solution hole, so the cake attached to the lower part of the oven cloth is It was difficult to remove.

In order to eliminate the above-mentioned drawbacks, the present applicant suspended a cloth frame from a spring provided so as to impart vibration to the furnace cloth when the furnace plates separated, and the cloth hanger was suspended from the horizontal rods of the frame. We have proposed a filter press furnace cloth stretching device (see Japanese Patent Publication No. 49-2222) in which a rope is stretched between the furnace cloth and the lower end of the furnace cloth.

In the above-mentioned furnace cloth stretching device, when the furnace plates are separated, the vertical vibration of the spring is transmitted to the rope, and the lower part of the furnace cloth is also vibrated vertically. The cake removal effect was improved.

However, with the oven cloth stretching device described above, when the spring extends downward, the rope becomes slack, and the vibration of the spring is not sufficiently transmitted to the lower part of the oven cloth. Removal of residual cake was incomplete.

This invention is an improvement of the above-mentioned proposed filter press furnace cloth stretching device, and the vibration of the spring is sufficiently transmitted to the lower part of the furnace cloth to further improve the cake removal effect at the lower part of the furnace cloth. The present invention provides a furnace cloth stretching device.

This application includes three inventions, and the first invention is that the P cloth hanger on the upper part of the furnace cloth suspended from the lower end of the spring provided above the furnace plate has a pair of connecting cables between the means and the lower part of the furnace cloth. In the furnace cloth stretching device, the vibration of the spring is transmitted to the lower part of the furnace cloth through the connecting rope when the furnace plate is separated, and the furnace cloth hook is extended in the front-rear direction above the means. The upper part of the connecting cable was wrapped in an inverted U-shape around a cable guide that was slidably suspended from a rail installed in This is a characteristic furnace fabric stretching device in a filter press.

Further, in the second invention, in the oven cloth stretching device which is the premise of the first invention, the upper part of the connecting cable is wound around the retaining shaft to which the upper end of the spring is attached in an inverted U shape, and the end part of the connecting cable is wrapped around the P cloth. This is a furnace fabric stretching device for a filter press, characterized in that the hanger is fixedly attached to a means and stretched.

Furthermore, the third invention provides a furnace cloth stretching device based on the first invention, in which the upper part of the connecting cable is wound in an inverted U-shape around the retaining shaft to which the upper end of the spring is attached, and then the furnace cloth is hung as a means. This is a furnace cloth stretching device for a filter press, characterized in that the cloth is stretched around a horizontal rod in a U-shape and its end is fixed to the above-mentioned retaining shaft.

Embodiments of the invention will be described below with reference to the drawings.

1 to 6 show an embodiment of the first invention, in which a large number of oven plates 1, 1, . . . have ear plates 2 formed on both sides of the oven plates 1, A movable furnace plate 8 is placed on the side plate 5 installed between the fixed furnace plate (fixed furnace plate) and the front frame 4 and arranged adjacent to it, and is attached to the piston 7 of the cylinder 6 arranged on the front frame 4 during filtration. is tightened by.

A link arm i is attached to a link shaft 9 protruding from both sides of the furnace plate 1.
The tip end of the link arm 10a is pivotally connected to the link arm 10b of the adjacent furnace plate 1.
A support plate 12a is rotatably pivotally connected to the middle part of the link arm 10a>10b, and a support plate 12a is rotatably attached to the other end of the support plate 12a. A bar 12 is supported in the width direction.

As shown in FIG. 3, the engagement shaft 11 has a short inward protrusion, and a tension coil type spring 13 is suspended from the protrusion 11a, and a tear cloth hook is attached to the lower end of the spring 13. A frame 14 is suspended.

The furnace cloth frame 14 has a horizontal rod 14a and a p cloth rod 14b that are integrally formed in parallel with each other with a narrow gap S,
Both ends of the horizontal rod 14a are supported by the lower end of the spring 13, and a pair of rope fasteners 15 are implanted on the upper peripheral surface of the horizontal rod 14a inside the fixed position of the spring 13. .

On the other hand, a pair of rails 16 are attached to the support columns 3a and 4a erected on both sides of the upper surfaces of the rear pedestal 3 and the front pedestal 4, respectively. It is supported in the front-back direction.

The rail 16 is, for example, in the shape of a rectangular cylinder having a narrow hole 16a in the longitudinal direction, as shown in FIG. 4, and has small wheels 17 inside.
A ring-shaped cable guide 19 is attached to the lower end of a hanging rod 18 suspended from the shaft of the small wheel 17.

The furnace cloth 20 a y 20 b has sewing loops at the upper and lower ends, and several cloth ear loops 21 at both ends.
is installed.

After passing the sewing loop at the upper end of the oven cloth 20a through the gap S of the oven cloth hanging frame 14, the oven cloth locking rod 22 is inserted through the sewing loop as shown in FIG. Support the furnace cloth 20a so that it does not come out from the gap S, then hang the upper part of the furnace cloth 20a on the furnace cloth rod 12 and apply it to the surface of the furnace plate 1.
Attach the P cloth 20a to the furnace plate 11 at the part, and then attach the furnace cloth 20a.
A tensioning rod 24 is inserted through the sewing ring-shaped portion at the lower end of the p-cloth 20a, and the p-cloth 20a is stretched onto the oven plate 1.

As shown in FIG. 1
9 and wind it in an inverted U-shape, then hang it on the furnace cloth rod 12, and then pass the rope 25 through the ear ring 21 of the furnace cloth 20a, and as shown in FIG. It is fixed to the side end of the rod 24.

Also, in contrast to the above, another furnace cloth 20b is stretched over the adjacent furnace plate 1 and the rope 25 is fastened to it.

After the filtration is completed, when the furnace plates 1 are sequentially separated, the furnace cloths 20a, 2 are opened as the link arms 10a, 10b are opened.
0b tilts, and at the same time the rope guide 19 also moves above the frame 14, and the vertical vibration of the spring 13 causes the rope guide 1
The tension rod 24 is transmitted to the rope 25 wrapped around the rope 9.
vibrate.

When the spring 13 vibrates, the rope 25 is hung on the upper cable guide 19, so when the spring 13 goes down, the underlay rod 24 goes up, and conversely, when the spring 13 goes up, the underside rod 24 goes up. 24 is lowered by its own weight and the weight of the oven cloths 20a and 20b, so the rope 25 does not slack and the spring 13
The vertical vibration is transmitted to the underlay rod 24 with approximately the same amplitude as that, and the lower ends of the P cloths 20a, 20b are greatly vibrated, and the cake remaining on the lower part of the furnace cloths 20a, 20b is sufficiently removed. .

In the above embodiment, the connecting cable may be a string, chain, etc. instead of the rope 25, and the cable guide 19 may be hook-shaped instead of ring-shaped.

In addition, instead of fixing the end of the rope 25 to the underlay rod 24, as shown in FIG. It may be fixed directly to 21a.

In addition, the earrings 2 attached to both ends of the P cloths 20a and 20b
1 can be omitted as appropriate.

FIG. 8 shows the main parts of an embodiment of the second invention, in which the rail 16 and cable guide 19 of the first invention are omitted, and the furnace cloth hook is attached to the rope stopper 15 of the frame 14. The upper part of the rope 25 with the end fixed is attached to the protrusion 11a of the engagement shaft 11 in an inverted U.
After winding the rope 25 into a shape, the rope 25 is passed through the ear ring 21 of the furnace cloth 20a, and the end of the rope 25 is fixed to the underlay rod 24, as in the case of the first invention.

In addition, Chofu 20a. The supporting means 20b and other structures are the same as those in the first embodiment.

The second invention shown in the above embodiment has a simple structure without the rails and cable guides of the first invention, but has the same degree of cake removal effect as the first invention.

In the embodiment of the second invention described above, the rope 25 was directly wound around the protrusion 11a of the engagement shaft 11;
A pulley is loosely fitted into the pulley 26 so that it can rotate freely.
You may wrap rope 5 around it; in this case, rope 2
5 and the engagement shaft 11 becomes smaller.

Further, in the above embodiment, the engaging shaft 11 has a short shaft, but it may have a long shaft that connects the link arms 10a, 10a on both sides of the door plate 1.

FIG. 9 shows a main part of an embodiment of the third invention, in which a retaining shaft 11 formed in a long shaft shape has a spring 13.
A pulley 26 is rotatably loosely fitted inside the fixing position of No. 3, and a rope stopper 27 is implanted on the lower peripheral surface of the engagement shaft 11.
The rope 25 with one end fixed to the rope stopper 27 is
The cloth hook is wrapped around the horizontal rod 14a of the frame 14 in a U-shape,
Next, after wrapping it around the pulley 26 in an inverted U shape,
The end of the rope 25 is fixed to the closing lug 21a at the bottom of the P cloth 20a.

Note that the support means for the furnace cloths 20a and 20b and other structures are the same as in the embodiment of the second invention.

In the third invention shown in the above-described embodiment, the amplitude of the vertical vibration of the spring 13 is amplified almost twice and transmitted to the rope 25, and the cake removal effect is superior to that of the first invention.

In addition, even greater effects can be obtained when a p-cloth vibrator, which will be described later, is also used.

In the embodiment of the third invention described above, the pulley 26 is connected to the engagement shaft 1
1, the pulley 26 may be omitted, and the pulley may be provided only on the horizontal rod 14a of the frame 14, or on both the engagement shaft 11 and the horizontal rod 14a. A pulley may be provided.

In each of the embodiments described above, if a furnace cloth vibrator is provided above the filter press, the furnace cloth hanger hits the upper part of the frame 14 to give vibration to the furnace cloth, and the vertical vibration of the spring 13 is increased. Therefore, the cake removal effect can be further improved.

In addition to the type shown in the embodiment in which a spring is suspended from a retaining shaft that engages the upper part of a link arm, the oven cloth stretching apparatus according to the present invention is also available in a type in which a spring is hung rotatably on the upper part of a furnace plate. It can be used with other spring-suspended filter presses, such as those with springs suspended on the frame.

As explained above, in each of the present inventions, the upper part of the connecting cable is wound around in an inverted U-shape or a U-shape, and one end of the connecting cable is fixed to a member to which the upper or lower end of the spring is attached. When the spring oscillates up and down after separating the furnace plate, when the spring expands and goes down, the lower part of the furnace cloth is raised, and conversely, when the spring contracts and goes up, the lower part of the furnace cloth moves up and down. Since it is lowered by its own weight, there is no slack in the connecting rope, and the vertical vibration of the spring can be efficiently transmitted to the lower part of the oven cloth with the same amplitude, improving the effectiveness of removing cake remaining on the lower part of the oven cloth. .

Furthermore, the structure is simple, and a conventional filter press can be easily modified.

[Brief explanation of drawings]

Fig. 1 is a side view showing an outline of an example of a filter press equipped with the mechanism of the first invention, Fig. 2 is a side view showing an enlarged view of the main part of Fig. 1, and Fig. 3 is a perspective view of the main part. Figure 4 is a vertically cut front view of the rail section, Figure 5 is a vertically cut side view of the frame of the furnace cloth hook, and Figure 6 shows the state in which the lower part of the furnace cloth is attached to the end of the connecting cable. A perspective view, FIG. 7 is a perspective view showing another example of FIG. 6,
FIG. 8 is a perspective view of the main part of the second invention, and FIG. 9 is a perspective view of the main part of the third invention. 1: furnace plate, 10a, 10b: link arm, 11: engagement shaft, 13 spring, 14:? 'Clothing is a frame, 14a
:Horizontal rod, 16:Rail, 19:Rope guide, 20a,
20b: Hearth cloth, 25: Rope (connecting rope), 26: Pulley.

Claims (1)

[Scope of Claims] 1. The furnace cloth hanger on the upper part of the furnace cloth suspended from the lower end of the spring provided above the door plate has a pair of connecting cables stretched between the means and the lower part of the furnace cloth, In the furnace cloth stretching device, the vibration of the spring is transmitted to the lower part of the furnace cloth through the connecting rope when the device is released, and the p cloth hook is slidable on a rail installed in the front-rear direction above the means. The upper part of the connecting cable is wound in an inverted U-shape around a cable guiding tool suspended from the filter press, and the end of the connecting cable is fixed to the P-cloth means and stretched. tension device. 2. A patent claim in which the upper end of the spring is suspended from an engagement shaft that engages the upper part of a link arm rotatably mounted on both sides of a door plate and the upper part of a link arm attached to an adjacent door plate. A furnace fabric stretching device in a filter press according to item 1. 3 A pair of connecting cables are stretched between the means and the lower part of the furnace cloth for the p-cloth hanging on the lower end of the spring provided above the door plate, and when the door plate is separated, the In the furnace cloth stretching device, which transmits the vibration of the spring to the lower part of the furnace cloth through the connecting rope, the upper part of the connecting rope is wound in an inverted U-shape around the retaining shaft to which the upper end of the spring is attached. 1. A furnace cloth stretching device for a filter press, characterized in that the end portion of the P cloth hanger is fixed to a means and stretched. 4. Claims in which the upper end of the spring is suspended from a locking shaft that engages the upper part of a link arm rotatably attached to both sides of the door plate and the upper part of the link arm of the adjacent door plate. 4. A furnace fabric stretching device in a filter press according to item 3. 5. A furnace fabric stretching device in a filter press according to claim 3 or 4, wherein a pulley for folding and hanging a connecting cable is rotatably fitted to the engagement shaft. 6 A pair of connecting cables are stretched between the means and the lower part of the furnace cloth for the furnace cloth hanger suspended from the lower end of the spring provided above the door plate, so that when the door plate is separated, the In a furnace cloth stretching device that transmits the vibration of the spring to the lower part of the furnace cloth through the connecting rope, the upper part of the connecting rope is wound in an inverted U shape around the engagement shaft to which the upper end of the spring is attached, and then the furnace cloth is 1. A furnace fabric stretching device for a filter press, characterized in that the fabric hook is wound around a horizontal rod of the means in a U-shape, and its end is fixed to the engagement shaft for tensioning. 7. Claims in which the upper end of the spring is suspended from an engagement shaft that engages the upper part of a link arm rotatably mounted on both sides of a door plate and the upper part of the link arm of an adjacent door plate. 7. A furnace fabric stretching device in a filter press according to item 6. 8. A furnace fabric stretching device in a filter press according to claim 6 or 7, wherein a pulley for winding a connecting cable is rotatably fitted around both or one of the engagement shaft and the horizontal rod.