JP2904594B2 - Dehydrator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dehydrator.

[0002]

2. Description of the Related Art Conventionally, as a dehydrator used for producing semi-solid bean paste by squeezing an juice or for squeezing other undiluted liquids, generally a pair of filter cloths are arranged vertically side by side. In addition to forming a vertical dewatering chamber, a rubber plate is arranged on the outer surface of this filter cloth, and the stock solution is pressed into the dewatering chamber while expanding the rubber plate by the pressure of the stock solution, and then the rubber plate is added from the outer surface. There is one in which the undiluted solution is squeezed and dewatered by pressing.

[0003]

In the above-mentioned conventional dehydrator, when the undiluted solution is pressurized and filled in the dehydration chamber, the pressure for expanding the rubber plate is required, so that the injection pressure of the undiluted solution must be increased. In addition, there is a problem that the filling time is long. Furthermore, since cake such as semi-solid bean cake remaining in the dehydration chamber adheres to the vertically arranged filter cloth, the cake must be scraped off with a spatula for peeling,
There is a problem that the desorption operation is difficult.

[0004] Therefore, an object of the present invention is to propose a dehydrator that solves the above-mentioned problems.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a dehydration chamber forming plate (5) which is formed horizontally with a dehydration chamber (27) having upper and lower surfaces opened. (2
7) upper and lower filter cloths (4) and (9) arranged on the upper and lower surfaces,
A reversing plate (8) horizontally disposed on the upper surface of the upper filter cloth (9), a pressurizing chamber (32) formed on the upper surface of the reversing plate (8), and the dehydration chamber forming plate (5). And lifting means for press-fitting and demolding the lower filter cloth (4).
The periphery (8a) of the reversing plate (8) is fixed and
The reversal plate (8) is bent downward inside its periphery (8a)
Has the bent portion has a (8b), a tapered portion inclined upwardly inwardly towards the center of the bent portion (8b) and (8c),
A horizontal central portion (8d) is provided inside the tapered portion (8c).
And the peripheral edge (8a), the bent portion (8b), and the tapered portion.
(8c) and a central portion (8d) are integrally formed of a synthetic resin plate to form an inverted dish shape.

[0006]

During the dewatering operation, the reversing plate (8) is in a state of being raised upward. In this state, the stock solution is pressed into the dehydration chamber (27).

After the dehydration chamber (27) is filled with the undiluted solution,
The inside of the pressurizing chamber (32) is pressurized, and the reversing plate (8) is pushed down to the substantially same horizontal position as the periphery (8a) to squeeze the stock solution.

The water in the stock solution is dehydrated by this pressing through the filter cloths (4) and (9) on the upper and lower sides. After dehydration, pressurized chamber
When the pressure in (32) is released, the reversing plate (8) is bent (8b).
It automatically returns upward due to the restoring force of, and separates from the dehydrated cake.

Next, a reversing plate (8) is used together with the upper filter cloth (9).
And remove the cake remaining on the lower filter cloth (4).

[0010]

In FIG. 1, 1 is a base, 2 is a fixed block fixed on the base 1, 3 is a drainage plate fixed on the fixed block 2, and 4 is a lower side mounted on the upper surface of the drainage plate 3. Filter cloth, 5
Is a dewatering chamber forming plate provided on the lower filter cloth 4 so as to be lifted and lowered separately from the filter cloth 4 and the drainage plate 3, 6 is a pressurizing chamber forming plate, and 7 is fixed to the lower surface of the plate 6. The peripheral edge of the reversing plate 8 provided in the pressure chamber forming plate 6 is interposed and held between the plates 6 and 7 by this plate. The two plates 6 and 7 are provided so as to be lifted and lowered separately from the dehydration chamber forming plate 5, and an upper filter cloth 9 is interposed between the contact plate 7 and the dehydration chamber forming plate 5. .
These members are installed horizontally.

Numeral 10 denotes a movable block, which is a first moving means.
It is provided so as to be able to move up and down by a hydraulic cylinder mechanism 11, and the pressure chamber forming plate 6 is fixed to the lower surface thereof.

Reference numeral 12 denotes the fixed block 2 and the movable block 10.
And a pair of right and left lock mechanisms.

Reference numeral 13 denotes a second hydraulic cylinder mechanism provided in the lock mechanism 12, which locks and releases the lock mechanism 12 by its operation.

Reference numeral 14 denotes a hydraulic pump for supplying hydraulic pressure to the first and second hydraulic cylinder mechanisms 11 and 13. 15 is the hydraulic piping.

Numeral 16 denotes a water pressure pump for supplying water pressure into the pressurized chamber forming plate 6 through a pipe 17.

Reference numeral 18 denotes a pump for press-feeding a stock solution to be dehydrated from the tank 19 into the dehydration chamber forming plate 5. 20
Is the piping.

Next, the details of the dewatering section will be described with reference to FIGS. The drainage plate 3 fixed on the fixed block 2 is formed of a substantially square plate when viewed from above, and has a square recess 21 formed on the upper surface thereof.

A draining plate 22 is fitted in the concave portion 21, and a groove-shaped drain passage 23 is formed on the upper surface thereof.
The drainage channel 23 is formed by arranging a single groove in a meandering shape. One end of the drainage channel 23 is connected to the air pressure inlet 24, and the other end is connected to the drainage port 25.

On the upper surface of the draining plate 22, a punching metal 26 is mounted and fixed. The upper surface of the peripheral edge of the drainage plate 3 and the upper surface of the punching metal 26 are formed on the same surface, and the lower filter cloth 4 is placed on these surfaces.

A dehydration chamber 27 is formed in the center of the dehydration chamber forming plate 5 and has a square shape as viewed from above and penetrates vertically. The peripheral wall surface 28 of the dehydration chamber 27 is formed as a tapered surface that expands downward.

A raw liquid pressure inlet 29 is formed on the peripheral wall of the dewatering chamber forming plate 5, and the raw liquid pressure inlet 29 is connected to a pipe 20 from the pump 18.
It is connected to the.

Reference numerals 30 and 31 denote O-rings fixed to the dewatering chamber forming plate 5 for sealing. At the center of the pressure chamber forming plate 6, a pressure chamber 32 facing the dehydration chamber 27 is formed. The pressurizing chamber 32 is formed as a chamber whose lower surface is open, and the lower surface opening width matches the upper surface opening width of the dehydration chamber 27. The pipe 17 communicates with the pressurizing chamber 32.

The reversing plate 8 has a peripheral edge 8a formed by the pressing chamber forming plate 6
And is provided in the pressurizing chamber 32 by being fixed to the lower surface thereof by the contact plate 7.

The side cross-sectional shape of the reversing plate 8 is as shown in FIGS. 2 and 3, and the planar shape is as shown in FIG. That is, a downwardly bent portion 8b is formed inside a horizontal peripheral edge 8a formed in four directions, and a tapered portion 8c that rises toward a central portion is formed inside the fourteenth bent portion 8b,
The central portion 8d is formed in an inverted dish shape formed horizontally.

The reversing plate 8 is formed with a large number of circular projections 8e projecting toward the dehydrating chamber 27 at predetermined intervals over the front surface of the tapered portion 8c and the central portion 8d. A flow portion 8f is formed between the protrusions 8e.

Further, the reversing plate 8 is formed of a hard synthetic resin plate, and normally maintains the state in which the center is raised as described above, and when the reversing plate 8 is pushed from above, it is formed on the periphery thereof. When the bent portion 8b escapes outward and the central portion 8d reaches substantially the same horizontal plane as the peripheral edge 8a, and when the upward force on the reversing plate 8 is released from this state, the reversing plate 8 8 automatically returns to the state shown by the solid line in the figure.

The upper filter cloth 9 interposed between the dewatering chamber forming plate 5 and the pressing plate 7 is held on the pressing plate 7 side. It is slightly slack so that it can follow the inner surface of the reversing plate 8 which has been reversed.

The drain plate 33 is formed in the contact plate 7 and communicates with the opening between the reversing plate 8 and the upper filter cloth 9.

Reference numeral 34 denotes an O-ring for a reel. A connecting bracket 35 is provided on a support plate 36 fixed on the outside of the dehydration chamber forming plate 5 so as to be able to be turned up and down around a support shaft 37, and is fixed on the outside of the movable block 10 to be connected. It comprises a latch 40 having a groove 39 for engaging and disengaging the rod 38, and a nut 41 screwed to the connecting rod 38 engaged with the latch 40.

The lock mechanism 12 will be described with reference to FIGS. The lock mechanism 12 is provided separately from the connection fitting 35.

Reference numeral 42 denotes a lower bracket fixed to the outside of the fixed block 2 and has a rotating shaft 43. A first lever 44 is rotatably provided on the rotating shaft 43, and a rotating shaft 45
, The second lever 46 is rotatably provided, and the two levers constitute a link mechanism. 47 is an upper bracket fixed to the outside of the movable block 10 and has a rotating shaft
48 is provided, and the other end of the second lever 46 is rotatably provided on the rotating shaft 48. These three axes 43, 45,
When the first lever 44 is moved downward to press the dewatering chamber forming plate 5 against the upper filter cloth 4 as shown in FIG.
The line A connecting the centers of the rotation shafts 48 and 48 is located slightly inside the center B of the rotation shaft 43 by C, so that the rotation shaft 45 can be locked beyond the dead center.

The rear end of the hydraulic cylinder 50 in the second hydraulic cylinder mechanism 13 is rotatably connected to a protruding piece 51 fixed to the movable block 10, and the distal end of the piston rod 52 is fixed to the first lever 44. It is rotatably connected to the protruding piece 53.

Next, the operation of producing semi-solid bean paste by dehydrating bean paste according to the present embodiment will be described.

As shown in FIGS. 1 and 2, the pressing chamber forming plate 6 is set on the dehydrating chamber forming plate 5 under pressure, and
When the reversing plate 8 is reversed to the solid line state in FIG. 2 and the upper filter cloth 9 is located below the reversing plate 8, the valve V is opened, the pump 18 is operated, and the tank The soup is pressed into the dehydration chamber 27 from the stock solution pressure inlet 29 through the pipe 20.

The upper filter cloth 9 is pushed upward by the pressure of the press-fitted stock solution. At this time, preliminary dewatering is performed from the lower surface of the dewatering chamber 27 through the lower filter cloth 4, the punching metal 26, the drain groove 23, and the drain port 25.

At the time of the injection of the undiluted solution, the reversing plate 8 is turned upward and the volume of the dehydration chamber 27 is increased.
The injection pressure of the undiluted solution may be extremely small as compared with the conventional method for inflating the rubber plate.

Subsequently, the soup is press-fitted to fill the dehydration chamber 27 with the soup, the pump 18 is stopped, and the valve V
Close.

Next, the hydraulic pump 16 is operated to pressurize the pressurized water from the pipe 17 into the pressurizing chamber 32. Due to this water pressure, the reversing plate 8 is pushed downward, and the juice in the dehydration chamber 27 is squeezed.

By the pressing of the soup, the water in the soup is dehydrated from the outlet 25 through the lower filter cloth 4 by the same flow as the preliminary dehydration.

The water dewatered through the upper filter cloth 9 circulates in the circulation section 8f of the reversing plate 8, and is discharged to the outside through the drain 33.

After the central portion 8d of the reversing plate 8 is pressed down to a substantially same horizontal plane as the peripheral edge 8a, the hydraulic pump 16
Is stopped and the water pressure in the pressure chamber 32 is released.

When the water pressure in the pressure chamber 32 is released, the reversing plate 8
Automatically returns to the state shown by the solid line in the figure due to the restoring force of the bent portion 8b. Therefore, the reversing plate 8 is provided in the dehydrating chamber 27.
From the dehydrated bean paste present in the upper part.

Thereafter, air is injected from the air pressure inlet 24 and the water remaining in the drainage channel 23 is discharged from the outlet 25.

Next, the lock mechanism 12 is released. This release method operates the hydraulic pump 14 to activate the second hydraulic cylinder mechanism.
The piston rod 52 of the thirteenth is moved in the retreating direction, and the first lever 44 is slightly rotated clockwise about the rotation shaft 43 so that the center of the rotation shaft 45 is located outside the axis B of the rotation shaft 43. Move to

Next, the hydraulic pressure in the hydraulic cylinder 50 is released to make the piston 52 free, and the first cylinder mechanism 11 is operated by the hydraulic pump 14 to move the piston rod 54 upward. Due to this upward movement, the movable block 10 is lifted as shown in FIG. 6, and the pressurizing chamber forming plate 35, the contact plate 7, the dewatering chamber forming plate 5, and the upper filter cloth 9 connected by the connecting bracket 35 are also similarly. Lifted and removed.

At the time of removing the mold, the peripheral wall surface 28 of the dehydrating chamber 27
Is formed on the tapered surface and the dehydrated bean paste 55
Due to its own weight, the bean paste 55 is easily separated from the upper filter cloth 9 and the dewatering chamber forming plate 35 and remains on the lower filter cloth 4.

At the time of the removal from the mold, the hydraulic pressure in the hydraulic cylinder 50 is released and the piston 52 is free.
52 retreats and moves the movable block 10 to the second hydraulic cylinder mechanism 13
6 can be raised to a high position where the bean 55 can be easily taken out as shown in FIG.

Then, after removing the mold, the bean paste 55 is taken out.
Next, in order to perform the dewatering operation again, an action reverse to the above-described demolding operation is performed. That is, from the state of FIG. 6, the first cylinder mechanism 11 is operated, and the piston rod 54 is moved down to move the dehydration chamber forming plate 5 to the vicinity of the drainage plate 3 (a state close to the state of FIG. 5). . Then, the second cylinder mechanism 13 is operated to make the piston rod 52 protrude. Then, with the rotating shaft 45
Line A connecting the centers of each of the 48 exceeds the center B of the rotating shaft 43,
The dewatering chamber forming plate 5 is strongly pressed onto the drainage plate 3 via the upper filter cloth 4 to close the dewatering chamber 27 and lock the closed state.

After this locking, the same dewatering operation as described above is performed. In addition, although the case where it applied to the dehydration of an soup was demonstrated above, it is needless to say that it can be applied to the dehydration of something other than an anth.

[0050]

As described above, according to the present invention, when the stock solution is pressed into the dewatering chamber, the reversing plate rises upward to increase the volume of the dewatering chamber. In comparison with the method, the injection pressure of the undiluted solution may be small, and the filling time of the undiluted solution may be shortened to improve the work efficiency.

Further, since the dewatering chamber, the upper filter cloth and the reversing plate are arranged horizontally and the reversing plate naturally separates from the cake at the time of demolding, the cake remains on the lower filter cloth at the time of demolding. In addition, the work of removing the cake is extremely easy as compared with the conventional vertical dehydrator. In addition, on the reversing plate
The bent part is integrally molded and inverted by the restoring force of the bent part
The plate is automatically returned, so the reversing plate itself is automatically
It can have a return function, and in addition,
The entire board is integrally molded of synthetic resin,
It is a reversing plate, and it can reliably prevent water leakage at the reversing plate part
Above, the entire reversing plate can be easily molded by resin molding
You.

[Brief description of the drawings]

FIG. 1 is a schematic front view showing an embodiment of the present invention.

FIG. 2 is a front sectional view of a main part of the same.

FIG. 3 is an enlarged front sectional view of a main part of the same.

FIG. 4 is a plan view of a reversing plate.

FIG. 5 is a front view showing a lock mechanism.

FIG. 6 is a front view illustrating a state where the lock mechanism is removed from the mold.

FIG. 7 is a side view of the lock mechanism.

8 is a sectional view taken along line 8-8 in FIG.

[Explanation of symbols]

 Reference Signs List 4 lower filter cloth 5 dehydration chamber forming plate 8 reversing plate 8a peripheral edge 8b bent part 8c tapered part 9 upper filter cloth 11 cylinder as lifting means 27 dehydration chamber 32 pressurizing chamber

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Kazuo Kobayashi 7-1-1 Higashi Narashino, Narashino City, Chiba Prefecture Inside the Narashino Plant, Hitachi, Ltd. (56) References JP-A-3-16609 (JP, A) (58) ) Surveyed field (Int.Cl. ⁶ , DB name) B01D 25/12 B01D 25/172 B01D 25/19

Claims (1)

(57) [Claims] A dehydration chamber forming plate (5), which is formed horizontally with a dehydration chamber (27) having upper and lower surfaces opened, and a dehydration chamber (2).
7) upper and lower filter cloths (4) and (9) arranged on the upper and lower surfaces,
A reversing plate (8) horizontally disposed on the upper surface of the upper filter cloth (9), a pressurizing chamber (32) formed on the upper surface of the reversing plate (8), and the dehydration chamber forming plate (5). And lifting means for press-fitting and demolding the lower filter cloth (4).
The periphery (8a) of the reversing plate (8) is fixed and
The reversal plate (8) is bent downward inside its periphery (8a)
Has the bent portion has a (8b), a tapered portion inclined upwardly inwardly towards the center of the bent portion (8b) and (8c),
A horizontal central portion (8d) is provided inside the tapered portion (8c).
And the peripheral edge (8a), the bent portion (8b), and the tapered portion.
A dehydrator characterized in that (8c) and a central portion (8d) are integrally formed of a synthetic resin plate to form an inverted dish.