JPS6010766B2 - filter press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a filter press in which a raw solution is separated into a furnace liquid and a furnace liquid through a furnace filtration or a pressing furnace. Concerning improvements to equipment.

Conventionally, in a cloth traveling type filter press, in order to collect the furnace cloth adhering to the furnace cloth by passing the raw liquid through the furnace when the filter press is connected, a furnace cleaner such as a scraper is used on the surface of the furnace cloth. It is known that a peeling member is passed through the bale to scrape off the furnace cloth from the furnace cloth.

However, since the above-mentioned scraper and other furnace stripping members are fixed at a fixed position on the support frame, the extension of the furnace cloth, the quality of the furnace cloth adhering to the furnace cloth, or the thickness of the furnace cloth can be changed by changing the furnace cloth. In such a case, the scraper must be removed from the support frame and reattached each time, which is extremely complicated and reduces production efficiency.

In addition, since the above scraper was fixed within the thickness of the furnace plate so as not to interfere with the tightening of the furnace plate, the running path of the furnace cloth was slightly bent inward to the inside of the furnace slope. There was a problem in that the surface was rubbed by the edge of the scraper, and the furnace cloth wore out during long-term use.

The present invention has been made in view of the above-mentioned problems, and it is possible to adjust the degree of contact between the scraper and the furnace cloth by pivotally supporting the scraper between the support frames. It is an object of the present invention to provide a filter press that can be positioned in a substantially vertically downward travel path of the oven cloth when the cloth runs, and can reliably prevent wear of the oven cloth.

In the filter press according to the present invention, a scraper having a furnace clearing edge in contact with the other side of the furnace cloth is rotated on a shaft provided on one side of the furnace cloth above the furnace cloth take-up roller between a pair of support frames. The edge of the scraper is movably supported and kept in constant contact with the other side of the furnace cloth to peel off the furnace wood adhering to the furnace cloth, while restricting rotation in the direction in which the edge of the scraper separates from the furnace cloth. A regulating member is provided, and the scraper is rotated by the oven cloth spread out by the biasing force of the spring of the oven cloth take-up roller, and the tip of the edge is positioned on the substantially vertically downward running path of the oven cloth. , when the furnace plate is tightened,
It is characterized in that the scraper rotates and is housed inside the thickness of the oven plate.

Hereinafter, the present invention will be explained in detail with reference to the illustrated embodiments.

In the filter press shown in FIG. 1, ``1'' is a front stand supporting the main plate 2, 3 is a rear stand, 4, 4 are side beams extending between both sides of the front and rear stands 1 and 3, respectively; 5,......", 5 is a mutually connected link 6, 6
A pair of handles 5a, 5a connected to each other and provided on both sides
7 is a movable plate that is driven forward and backward by a driving piston 8 supported on the rear stand 3. , the movable plate 7 is in a retreat position A shown by a phantom line in the figure.
When the furnace is moved backward to a certain point, the furnace plates 5 can be connected all at once at predetermined intervals determined by the connecting links 6, 6.

On the other hand, 9.9 is the front and rear stand army? As shown in FIG. A pair of left and right take-up pulleys 11, 11, which are rotatably supported on both sides above, compete with each other, respectively, and drive a motor 13 with a speed reducer installed on a mounting base 12 attached to the upper part of the rear stand 3. This allows the pair of left and right drive shafts 9, 9 to be driven in the forward and reverse directions via the bevel gear transmission mechanism 14.

The above-mentioned left and right take-up pulleys 11, 11 are wound with hanging strips 15 that are locked to each take-up pulley 11 at one end, and the other end is an end of a furnace cloth hoisting machine IT that suspends and supports a furnace cloth 16. It is fastened to a connecting fitting 18 attached to the section.

A pair of left and right support frames 19, 19 projecting downward are provided on the lower surface of the furnace frame of the furnace plate 5, and the support frames 19, 1
Further below 9, a furnace cloth take-up roller 20 is attached.

As shown in FIGS. 1 and 3, the winding roller 20 has front and rear filter surfaces 5b, 5b provided on both sides of the furnace plate 5.
The two ends of the two furnace cloths 16, 16 and 16 covering the winding rollers are fixedly secured to each other by two winding rollers.

As shown in FIG. 4, the upper magazine take-up roller 2 is
It is a cylindrical hollow roller whose both ends are rotatably supported by a support shaft 21 which is fixed to the lower part between 9 and 19 so as not to rotate freely. A coil-shaped spring (not shown) is wound around the support shaft 21, and the central part is fixed to the support shaft 21, and the spring force of this swing spring is The winding roller 20 is always biased in the rotational direction for winding up the furnace cloths 16-1, 16-2.

Further, a scraper 22 is rotatably supported on the upper part of the pair of support frames 19, 19 by a support roller 23.

The scraper 22 is attached to the support roller side, that is, the furnace cloth 16
The scraper 22 is a thin plate having a furnace scraping edge 22a that is longer than the inside of the furnace cloth 16, and has a furnace scraping edge 22a that faces the furnace bamboo attachment surface. It is fixed to the roller 23. The above support roller 2
3, L-shaped stoppers 25 bent toward the support frame side are respectively provided protruding in the same phase with respect to the support roller 23, and abutment members for abutting each of the stoppers 25 are provided. 206 are respectively fixed to the support frame 19 to restrict rotation of the support roller 23 in the direction in which the edge 22a of the scraper 22 fixed to the support roller 23 is separated from the oven cloth 16.

Therefore, the oven cloth 16 passes through the space 27 formed between the support roller 23 and the edge 22a of the scraper 22.

When the oven plates 5, . . . . . . 16, each scraper 22 is rotated together with the support roller 23 in the direction of arrow A in the figure, the stoppers 25, 25 are brought into contact with the stoppers 26, 26, respectively, and the edge tip of the scraper 22 is brought into contact with the furnace cloth 16. The scraper 22 is placed on a substantially vertically downward running path, and the scraper 22
The edge 22a bites between the furnace cloth 16 and the furnace cloth 16 attached to the furnace cloth 16, so that the furnace cloth 16 is separated from the furnace cloth 16 by the wedge effect of the edge 22a. On the other hand, the furnace plate 5,...
5, the scrapers 22, 22 provided opposite to the adjacent furnace plates 5, 5 press against each other, bending the furnace cloth 16 within the thickness of the furnace plate 5, as shown in FIG. The scrapers 22 are rotated in the direction of arrow B, and each scraper 22 is housed within the thickness of the furnace plate 5 as shown in FIG.
This is done so as not to interfere with the vertical mounting of the furnace plate 5. moreover,
Below the support rollers 23, 23 between the support frames 19, 19, first, second, and third guide rollers 29, 30, 31 are respectively pivotally supported. 2, a cleaning pipe 32 equipped with a number of nozzles 32a protruding diagonally rearward and upward is provided on the rear side of the furnace plate between the second and third guide rollers 30 and 31 to guide the furnace cloth 16. I am trying to clean it. Now, as shown by the solid line in FIG. 1, when the movable plate 7 moves forward and the furnace plates 5, . . . , 5 are attached to the front stand 1 side all at once, From the stock solution supply pipe la supported on the front stand 1, the stock solution is supplied between the furnace cloths 16, 16 via the stock solution supply port 5c of each furnace plate 5 (see FIG. 2) and the raw material supply fitting 16a attached to each furnace cloth 16. The pressurized stock solution is separated into the furnace groove and the furnace liquid, and the separated furnace liquid is recovered from the furnace liquid recovery pipe 33 to perform furnace cleaning.

When one furnace passing process is completed and the movable plate 7 is retreated to position A in FIG.
As shown in FIG. 3, the furnace plates 5 connected in order from the sides are connected together at a constant distance from each other.

At the same time as this barrier frame, a part of the separated furnace smelt (in the form of a cake) falls due to gravity. At the stage where some of the furnace cloth has fallen, the furnace cloth 16 is stretched slightly away from the furnace plate 5, and at this stage, the motor 13 is decelerated and driven in the unwinding direction. When the hanging strip 15 wound around the take-up pulleys 11, 11 is unwound by the left and right drive shafts 9, 9, the Minato spring, which is at its maximum deflection, moves the take-up roller 20 with a strong spring force.
Rotate in the winding direction. By the winding rotation of the take-up roller 20 due to this spring force, the furnace cloth 16- on both sides of each furnace plate 5 is
1, 16-2 pass between the support roller 23 and the scraper 22, and the edges 22a of the scrapers 22 remove the furnace slag 28 remaining on the furnace cloths 16-1, 16-2 from the furnace cloth 16.
-1, 16-2. The furnace cloth 16-1 on the front side of the furnace plate 5 from which the furnace plate 28 has been peeled off is attached to the third guide roller 3.
1, the cloth is wound up on a winding roller 20. On the other hand, the furnace cloth 16-2 on the rear side of the furnace plate 5 is wound up by the furnace cloth take-up roller 20' by the respective guides of the first guide roller 29, the second guide roller 30, and the third guide roller 31. Note that cleaning each furnace cloth 16 using the cleaning pipe 32 is performed as appropriate when winding up or unwinding the furnace cloth. In the above embodiment, the degree of contact of the edge 22a of the scraper 22 with the furnace cloth 16 can be easily adjusted by variously changing the position of the stopper 25 with respect to the support roller 23, or by variously changing the position or inside of the abutting member 26. can do.

Further, by using an elastic body such as a spring, for example, the brackets 24, 2 supported by the furnace plate 5 in a direction opposite to the furnace plate 5 in the front and rear direction.
4 or between the bracket 24 and the support frame 19 to move the scraper 22 in the direction in which it comes into contact with the furnace cloth 16 (
5), or by interposing a compression spring instead of the abutting member 26 between the stoppers 25, 25 located in the front and back direction of the furnace plate 5, the furnace cloth 1
The degree of contact of the edge 22a of the scraper 22 with the edge 22a of the scraper 22 may be adjusted. Furthermore, in the above example,
Although the scraper 22 is provided below the support roller 23, it is also possible to provide the scraper 22 above the support roller 23, while the stopper 25 and stopper 26 are provided below the support roller 23. good. As described in detail in the above embodiments, the filter press according to the present invention has a shaft provided on one side of the oven cloth above the oven cloth take-up loaf between a pair of support frames, and a furnace cloth in contact with the other side of the oven cloth. A regulating member is provided to rotatably support a scraper having a peeling edge, and to restrict the rotation of the edge of the scraper in the direction in which it separates from the furnace cloth, thereby reducing the biasing force of the spring of the furnace cloth take-up roller. The scraper is rotated with the furnace cloth screened by the screen, and the tip of the edge is positioned on the approximately vertically downward traveling path of the furnace cloth. Since the scraper is housed within the thickness of the furnace plate, the degree of contact of the scraper with the furnace cloth (such as the angle of the edge to the surface of the furnace cloth) can be easily adjusted by the regulating member, thereby improving production efficiency. In addition, it does not interfere with the vertical attachment of the furnace plate, and on the other hand, it is possible to reliably prevent abrasion of the furnace cloth and to allow the furnace cloth to run extremely smoothly.

[Brief explanation of the drawing]

Fig. 1 is a schematic front view of a filter press according to an embodiment of the present invention, Fig. 2 is a rear view of the furnace plate in the rolling line direction of Fig. 3, and Fig. 3 shows the state of the furnace plate frame of the filter press. Figure 4 is an enlarged rear view of the main part shown in Figure 2, and Figure 5 is a front view of the main part.
This figure is an enlarged front view of the main part of FIG. 3, and FIG. 6 is an enlarged front view of the main part showing a state in which the furnace plate of the filter press in FIG. 5 is tightened. 1, 3...Front, rear stand, 5...
Furnace plate, 16... Furnace cloth, 19... Support frame, 20... Winding roller, 22... Scree/f, 2
2a "River" edge, 23...Support roller, 25...
...Stopper, 26...Abutting member, 28...
... Furasumi. Figure 1 Figure 2 Figure 3 Figure 5 Figure 6 Figure 4

Claims (1)

[Claims] 1. Winding string-like bodies connected to the upper ends of a pair of filter cloths arranged between adjacent filter plates, respectively, around a winding means that is driven in forward and reverse directions,
A pair of front and rear filters are arranged between a pair of support frames supported below each filter plate so that the pair of filter cloths can be put in and taken out, and the filter cloth is placed between the front and rear of the filter plate. In a filter press that pivotally supports a filter cloth take-up roller around which the lower end of the cloth is wound, and urges the filter cloth take-up roller in the direction of winding up the filter cloth, there is a gap between the filter plate and the filter cloth take-up roller. A support roller is rotatably provided approximately parallel to the roller, and both ends of a scraper having filter residue peeling edges approximately parallel to the support roller are attached to the support roller via brackets, and the scraper is wound around the filter cloth take-up roller. The filter cloth to be removed is passed through the inside of the scraper on the outside of the support roller so that the outer surface of the filter cloth faces the edge of the scraper, and the support roller is moved so that the edge is always in contact with the outer surface of the filter cloth. When a rotation regulating member is provided and the filter plate is opened, the scraper is rotated by the filter cloth stretched by the biasing force of the spring of the filter cloth take-up roller, and the scraper is rotated in the substantially vertical direction of the filter cloth. A filter press characterized in that when the tip of the edge is positioned on a downward running path and the filter plate is tightened, the scraper rotates and is housed within the thickness of the filter plate.