JPS5841888B2 - Single filter press - Google Patents

Description

[Detailed description of the invention] The present invention relates to improvements in single-unit filter presses.

In a conventional single filter press, for example, adjacent front and rear furnace plates are clamped together with a pair of furnace cloths in between, and a furnace chamber surrounded by the furnace cloth is formed between the furnace plates, and a raw solution supply consisting of small articles is formed between the furnace plates. A device is attached to the oven cloth, and the undiluted solution is supplied from the undiluted solution supply device into the Okinouchi chamber, and is separated into the filtrate and the filtrate.

However, since the conventional single filter press mentioned above does not use a door frame like the double filter press, it has the advantage that cake can be easily discharged, but the furnace essentially lacks support strength. Because the undiluted solution supply tool is supported by the cloth, for example, when the furnace cloth is moved, it can be damaged or wrinkled or stretched, making the positioning of the undiluted solution supply tool uncertain. There are drawbacks.

In order to eliminate the above-mentioned drawbacks, the present invention provides a frame-shaped raw solution supply plate having approximately the same outer circumferential shape as the furnace plate, which is interposed between a pair of furnace cloths between adjacent front and rear furnace plates. By tightening the undiluted solution supply plate by the outer periphery of the furnace plate and providing it essentially separated from the furnace cloth and the furnace plate, damage to the furnace cloth can be prevented, and the positioning of the undiluted solution supply plate can be ensured. The outer peripheral part of the front furnace plate is formed thinner than the central part,
By making the rear tightening surface of the stock solution supply plate substantially flush with the filter surface at the center of the front furnace plate, the front furnace plate and the stock solution supply plate appear to be one. The object of the present invention is to provide a new single filter press in which a furnace plate is formed so as to maintain the advantage of the conventional single filter press that cake can be easily discharged.

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

In FIG. 1, 1 is a pair of front and rear end plates, 2 and 3 are both end plates 1, and a plurality of substantially rectangular first and second P plates having the same outer circumferential shape are arranged between 1 in a laminated structure sequentially from the front. , 4
6 is a pair of furnace cloths provided between the first P plate 2 and the second P plate 3 and between the first P plate 2 and the end plate 1 so as to surround the furnace chamber 5, 6 is a pair of furnace plates 4, 4, the first,
It is a frame-shaped stock solution supply plate having the same outer peripheral shape as the second P plates 2 and 3, and the end plate 1, the first and second P plates 2゜3, the furnace cloth 4, and the stock solution supply plate 6 are shown in a laminated structure. It is removably tightened by non-contact means.

Outer peripheral portion 1 forming both tightening surfaces IL11 of the first P plate 2
2, as shown in FIGS. 1 and 2, is formed to be thinner by a certain dimension than the central portion 15 forming both filter surfaces 14 and 14 having mesh grooves 13, and a furnace cloth 4 is provided on the tightening surface 11. The tightening surface 16 of the stock solution supply plate 6 on the second P plate 3 side, which is tightened via the plate 6, is positioned approximately on the same plane as the filter surface 14 of the first P plate 2.

Further, as shown in FIG. 2, a disk-shaped protrusion 21 is provided at the center of the upper side of the first P plate 2, and a through hole 22 as a stock solution passage is provided in the protrusion 21.

Further, husband handles 23 are made to protrude from both sides of the first P plate 2, and the handles 23 are supported by side beams (not shown).

In addition, 24 is a tapered surface between the center part 15 and the outer peripheral part 12 of the 1st P plate 2, and 25 is a lachrymal discharge tube.

On the other hand, as shown in FIGS. 3 and 4, the stock solution supply plate 6 is provided with an upwardly projecting portion 26 at the center of its upper side, and a through hole 27 is provided in the projecting portion 26 as a stock solution passage.

The through-hole 27 is arranged on the same straight line as the through-hole 22 of the first P plate 2 and the through-hole 28 of the second furnace plate 3 as a passage for the raw solution.

A branch passage 31 opening into the furnace chamber 5 is branched from the stock solution passage 2T of the stock solution supply plate 6.

The inside of the stock solution supply plate 6 is the tapered surface 2 of the first P plate 2.
It is formed on a tapered surface 29 along 4.

Furthermore, handles 30 are provided on both sides of the stock solution supply plate 6, and are supported by side beams (not shown).

On the other hand, an outer peripheral portion 33 forming both tightening surfaces 32 of the second P plate 3
is formed to be thicker than the central portion 36 forming both filter surfaces 35 having mesh grooves 34, and the tapered surface 24 of the first plate 2 is formed between the filter surface 34 and the tightening surface 32. It is formed on the tapered surface 37 along the line.

Note that 38 is a filtrate discharge passage. In the single filter press with the above configuration, the stock solution is passed through the stock solution passages 22, 27 and 28.
When the raw solution is pumped into the furnace chamber 5 through each branch passage 31, the raw solution is separated into a cake and a p-liquid by the furnace cloth 4.

The cake accumulates in the oven chamber 5, and the lachrymal fluid passes through the mesh grooves 13, 34 of the first and second F plates 2.3 and is discharged from the liquor discharge pipe 25.

As described above, when supplying the stock solution into the p chamber 5, the stock solution is guided from the tapered surface 29, so cakes and the like will not accumulate at that location.

The sealing between the clamping surfaces 11, 16, and 32 is performed by a furnace cloth interposed between them.

Next, in order to discharge the cake accumulated in the furnace chamber 5, the first and second P plates 2, 3 and the stock solution supply plate 6 are separated from each other by known means.

At this time, the stock solution supply plate 6 is fitted to the first P plate 2, and the whole apparently forms one door plate, so combined with the presence of the tapered surfaces 24, 29 and 37, the cake does not stagnate. Therefore, the cake can be easily discharged from the furnace chamber 5.

In other words, there is no obstacle such as the furnace frame of a dual filter press that prevents the cake from being discharged.

Furthermore, when separating and opening the end plate 1, first and second P plates 2 and 3, the stock solution supply plate 6 cannot be completely separated from the furnace cloth 4 because it is not fixed to the furnace cloth 4. Even if the furnace cloth 4 is run, the furnace cloth 4 will not be damaged or wrinkled.

Also, a stock solution supply plate 6 serves as a supply point for the stock solution to the furnace chamber 5.
Since the positioning can be performed independently of the furnace cloth 4, it can be done reliably.

In the modification shown in FIGS. 5 and 6, a truncated cone portion 40 is protruded around the stock solution supply plate 6, and a recess 41 into which the truncated cone portion 40 is fitted is provided in the second P plate 3, so that the furnace cloth 4 is The truncated cone portion 40 is bent to improve sealing performance.

In addition, in this modification, the amount of protrusion of the first P plate 2 with respect to the clamping surface of the off-shore vortex surface 14 is made smaller than in the above embodiment, and the furnace chamber 5 is
The width is increasing.

In this way, the thickness and moisture content of the cake can be adjusted by adjusting the amount of overhang.

Note that the single filter press of the present invention is not limited to a furnace cloth traveling type, but also one in which a furnace cloth is fixed to a furnace plate,
It is also applicable to a method in which the furnace cloth is hung from above.

As is clear from the above description, according to the present invention, a frame-shaped stock solution supply plate having approximately the same outer circumferential shape as the door plate is interposed between a pair of furnace cloths between adjacent front and rear F plates. Then, the undiluted solution supply plate is tightened around the outer periphery of the front and rear door plates, and since the undiluted solution supply plate is essentially separated from the furnace cloth and the door plate, damage to the furnace cloth can be prevented and the positioning of the undiluted solution supply plate can be adjusted. It can be done reliably.

In addition, the outer periphery of the front furnace plate is made thinner than the central part, so that the rear clamping surface of the stock solution supply plate fastened to the furnace plate is approximately flush with the filter surface of the front furnace plate. Therefore, the cake can be easily discharged.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a longitudinal cross-sectional view of the main parts of a single filter press according to an embodiment of the present invention, Fig. 2 is a side view of the first P plate, and Fig. 3 is a side view of the stock solution supply plate. , FIG. 4 is a sectional view taken along the line IV--IV in FIG. 3, FIG. 5 is a longitudinal sectional view of a main part of a modified example, and FIG. 6 is a side view of the stock solution supply plate shown in FIG. 5. 1...End plate, 2...1st P plate, 3...
...Second P plate, 4...Heart cloth, 5...
・Furnace chamber, 6... Raw solution supply plate, 11...
Tightening surface, 1, 4...Filter surface, 27...
...Still solution passage, 31... Branch passage.

Claims (1)

[Claims] 1. Tighten adjacent front and rear furnace plates with a pair of furnace cloths in between,
In a single filter press, a furnace chamber surrounded by a furnace cloth is formed between the furnace plates, and a raw liquid to be filtered is supplied into the furnace chamber to separate the furnace liquid and lacrimal liquid. A frame-shaped raw solution supply plate having approximately the same outer circumferential shape is interposed between the pair of furnace cloths, and is tightened by the outer peripheral portions forming the tightening surfaces of the front and rear furnace plates, and the outer circumference of the front furnace plate is tightened. The portion is formed to be thinner than the central portion forming the filter surface so that the rear tightening surface of the stock solution supply plate is approximately flush with the filter surface of the front furnace plate. A single type filter press characterized in that the stock solution supply plate is provided with a stock solution passage communicating with the stock solution passage of the furnace plate, and a branch passage branching from the stock solution passage is provided so as to open into the furnace chamber.