JP3024843B2 - 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 dewatering machine used for producing semi-solid bean paste by squeezing an juice or for squeezing other undiluted liquids, a pair of filter cloths is generally provided vertically side by side. In addition to forming a vertical dewatering chamber, a rubber plate is arranged on the outer surface of the 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.

Therefore, the present applicant has previously proposed a dewatering machine which solves the above-mentioned problem by using a reversing plate (Japanese Patent Application No. 3-2).
No. 8232). However, in the invention according to the present application,
It was found that the cake might adhere to the reversing plate side after dehydration.

Accordingly, an object of the present invention is to propose a dehydrator to which a means for reliably peeling off and removing the cake even when the cake adheres to the reversing plate side. .

[0006]

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 side of the upper filter cloth (9), a pressurizing chamber (32) formed on the upper surface side of the reversing plate (8), a reversing plate (8) and the upper side Peeling means for introducing compressed air between the filter cloths (9) to separate the upper filter cloth (9) from the reversing plate (8); and removing the dewatering chamber forming plate (5) from the lower filter cloth (4). The reverse plate (8) has a periphery (8a) fixed thereto and forms a bent portion (8b) inside the periphery (8a). It is characterized in that it is formed in an inverted dish shape in which a tapered portion (8c) inclined upward toward the center is formed inside the bent portion (8b).

[0007]

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 stock solution is filled in the dewatering chamber (27), the inside of the pressurizing chamber (32) is pressurized to push down the reversing plate (8) to a position substantially in the same horizontal position as the periphery (8a) of the stock solution. Squeeze.

By this pressing, the water in the stock solution is dewatered through the upper and lower filter cloths (4) and (9). After the dehydration, the pressure in the pressurizing chamber (32) is released, and compressed air is pressed into the space between the reversing plate (8) and the upper filter cloth (9) from the compressed air introduction path (100). Then, the reversing plate (8) returns upward by the restoring force of the bent portion (8b) and the pressure of the compressed air, and the upper filter cloth (9) is forcibly peeled off from the reversing plate (8), In addition, the compressed air acts on the cake surface from the texture of the upper filter cloth (9), and the upper filter cloth (9) and the cake are separated.

Furthermore, the impact of the reversal of the reversing plate (8)
The impact of the introduction of compressed air promotes the cake peeling action. Next, the reversing plate (8) is removed upward together with the upper filter cloth (9), and the cake remaining on the lower filter cloth (4) is taken out.

[0011]

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.

Reference numeral 10 denotes a movable block which is provided so as to be able to move up and down by a first hydraulic cylinder mechanism 11 which is a raising and lowering means, and the pressure chamber forming plate 6 is fixed to the lower surface thereof. Reference numeral 12 denotes a lock mechanism for connecting the fixed block 2 and the movable block 10, and a pair of right and left lock mechanisms is provided.

Reference numeral 13 denotes a second hydraulic cylinder mechanism provided in the lock mechanism 12, which locks or releases the lock mechanism 12 by its operation. 14 is a hydraulic pump,
The hydraulic pressure is supplied to the first and second hydraulic cylinder mechanisms 11 and 13. Reference numeral 15 denotes the hydraulic piping.

Numeral 16 denotes a water pressure pump which supplies water pressure into the pressurized chamber forming plate 6 through a pipe 17. Reference numeral 18 denotes a pump for press-feeding the 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 one groove in a meandering shape. One end of the drainage channel is connected to the air pressure inlet 24 and the other end is connected to the drainage port 25.

A punching metal 26 is placed and fixed on the upper surface of the draining plate 22. 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.

At the center of the dehydration chamber forming plate 5, there is formed a dehydration chamber 27 which is square when 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.

The peripheral wall of the dewatering chamber forming plate 5 has a stock solution pressure inlet 29
The stock solution pressure inlet 29 is connected to a pipe 20 from the pump 18. Reference numerals 30 and 31 denote O-rings for sealing fixed to the dehydration chamber forming plate 5.

At the center of the pressure chamber forming plate 6, a pressure chamber 32 facing the dehydration chamber 27 is formed. The pressurizing chamber 3
Numeral 2 is formed in a chamber whose lower surface is open, and its lower surface opening width matches the upper surface opening width of the dehydrating chamber 27. The pipe 17 communicates with the pressurizing chamber 32.

The reversing plate 8 is provided in the pressurizing chamber 32 with its peripheral edge 8a fixed to the lower surface of the pressurizing chamber forming plate 6 by the abutment plate 7. The side cross-sectional shape of the reversing plate 8 is shown in FIGS.
The planar shape is as shown in FIG. That is, the horizontal peripheral edge 8a formed in four directions
Are formed at the inner side of the lower part, and the tapered parts 8 rising toward the central part are formed inside the four side bent parts 8b.
c, and is formed in an inverted dish shape in which a central portion 8d is formed horizontally. The reversing plate 8 is formed with a plurality of circular projections 8e projecting toward the dehydration chamber 27 at predetermined intervals over the front surface of the tapered portion 8c and the central portion 8d. The circulation part 8f is formed between them.

Further, the reversing plate 8 is formed of a hard synthetic resin plate, and normally keeps the above-mentioned center raised state. 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 the upward force on the reversing plate 8 is released from this state, the reversing plate 8b is restored by the restoring force of the bent portion 8b. 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 depressing plate 7 is held on the depressing plate 7 side, and the portion located in the dewatering chamber 27 is located upward as shown in the figure. It is slightly slack so that it can follow the inner surface of the reversing plate 8 which has been reversed.

A drain port 33 is formed in the plate 7 and communicates between the reversing plate 8 and the upper filter cloth 9. Further, an air introduction path 100 for forming a peeling means is formed in the corresponding plate 7. The inner end of the air introduction path 100 is opened between the reversing plate 8 and the upper filter cloth 9, and the outer end is a pipe 1.
01 communicates with the air pump 102.

Reference numeral 34 denotes an O-ring for sealing. 103
Is a rubber plate provided on the upper surface of the reversing plate 8. Even if a crack occurs in the reversing plate 8, the pressurized water in the pressurizing chamber 32 is dewatered through the reversing plate 8 and the upper filter cloth 9, To prevent intrusion.

A connecting bracket 35 is provided on a support plate 36 fixed to the outside of the dehydration chamber forming plate 5 so as to be able to be turned upside down around a support shaft 37, and is fixed to the outside of the movable block 10. A latch 40 formed with a groove 39 for engaging and disengaging the connecting 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 second lever 46 is rotatably provided at a tip thereof by a rotating shaft 45, and the two levers constitute a link mechanism. Reference numeral 47 denotes an upper bracket fixed to the outside of the movable block 10 and provided with a rotating shaft 48, on which the other end of the second lever 46 is rotatably provided. The relationship between the three shafts 43, 45, and 48 is such that 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 4 is slightly located inside the center B of the rotation shaft 43 by C.
5 can be locked beyond the dead center.

The rear end of the hydraulic cylinder 50 in the second hydraulic cylinder mechanism 13 has a protruding piece 5 fixed to the movable block 10.
The piston rod 52 is rotatably connected to a projecting piece 53 fixed to the first lever 44.

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, in a state where the pressurizing chamber forming plate 6 is set under pressure on the dehydrating chamber forming plate 5, the reversing plate 8 is reversed to the solid line state in FIG. With the upper filter cloth 9 positioned below the plate 8, the valve V is opened, and the pump 18 is operated to press the soup in the tank 19 from the stock solution pressure inlet 29 into the dehydration chamber 27 through the pipe 20. I do.

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 injecting the undiluted solution, the reversing plate 8 is turned upside down, and the volume of the dehydration chamber 27 is increased. Small and good.

Subsequently, the soup is pressurized to fill the dehydration chamber 27 with the soup, the pump 18 is stopped, and the valve V is closed. Next, the hydraulic pump 16 is operated to pressurize the pressurized water from the pipe 17 into the pressurized chamber 32. Due to this water pressure, the reversing plate 8 is pushed downward, and the juice in the dewatering 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. In addition, the water dewatered through the upper filter cloth 9 flows through the flow portion 8 f of the reversing plate 8 and is discharged to the outside from the drain port 33.

After the central portion 8d of the reversing plate 8 is pressed down by pushing down to the same horizontal plane as the peripheral edge 8a, the water pressure pump 16 is stopped to release the water pressure in the pressure chamber 32, and at the same time, from the air introducing passage 100. The compressed air is supplied to the reversing plate 8 and the upper filter cloth 9
Press into it suddenly.

Thus, the reversing plate 8 has its bent portion 8b
And the upper filter cloth 9 is forcibly peeled off from the reversing plate 8 by the restoring force of the compressed air and the pressure of the compressed air. Peeling of the cake from the filter cloth 9 is performed.

Further, by the introduction of the compressed air, the water remaining between the reversing plate 8 and the upper filter cloth 9 is forcibly extruded and discharged from the drain port 33 by air pressure. Further, the impact of the reversal of the reversing plate 8 and the impact of the introduction of the compressed air enhance the cake peeling action.

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 move the piston rod 52 of the second hydraulic cylinder mechanism 13 in the retreating direction,
The lever 44 is slightly rotated clockwise about the rotation shaft 43 so that the center of the rotation shaft 45 is aligned with the axis B of the rotation shaft 43.
Move more outward.

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 so that the piston rod 54 is released.
Move up. By this upward movement, the movable block 10 is lifted as shown in FIG. Lifted and removed.

At the time of removal from the mold, the bean 55 is easily peeled off from the dehydration chamber forming plate 5 by the tapered surface of the peripheral wall surface 28 of the dewatering chamber 27 and the weight of the dehydrated bean 55. It remains on the side filter cloth 4.

Also, 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, so that the piston rod 52 retreats as the movable block 10 moves upward, and the movable block 10 is moved. Without being restrained by the second hydraulic cylinder mechanism 13, the bean 55 can be raised to a high position where it 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. 7, the first cylinder mechanism 11 is operated, and the piston rod 54 thereof is moved down to move the dehydration chamber forming plate 5 down to the vicinity of the drain plate 3 (FIG. 6).
State close to the state). Then, the second cylinder mechanism 13 is operated to make the piston rod 52 protrude. Then, the line A connecting the centers of the rotating shafts 45 and 48 exceeds the center B of the rotating shaft 43, and the dehydration chamber forming plate 5 is strongly pressed onto the drainage plate 3 via the upper side filter cloth 4 so that the dehydration chamber 27 Is closed and its closed state is locked.

After this lock, the same dehydration 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.

[0043]

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, at the time of demolding, compressed air is introduced between the reversing plate and the upper filter cloth to reliably perform the reversing operation of the reversing plate and the peeling of the upper filter cloth from the reversing plate, and take out the cake. It can be done automatically and reliably.

[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 an enlarged front sectional view showing a compressed air introduction portion.

FIG. 5 is a plan view of a reversing plate.

FIG. 6 is a front view showing a lock mechanism.

FIG. 7 is a front view showing a state where the lock mechanism is removed from the mold.

FIG. 8 is a side view of the lock mechanism.

FIG. 9 is a sectional view taken along line 9-9 in FIG. 6;

[Explanation of symbols]

 Reference Signs List 4 lower filter cloth 5 dehydration chamber forming plate 8 reversing plate 8a peripheral edge 8b bent portion 8c taper section 9 upper filter cloth 11 cylinder as lifting / lowering means 27 dehydrating chamber 32 pressurizing chamber 100 compressed air introduction path as peeling means

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Nagase Hy 祐 suke 3-21-11 Josai, Nishi-ku, Nagoya City, Aichi Prefecture (72) Inventor Kazuo Kobayashi 7-1-1 Higashi Narashino, Narashino City, Chiba Prefecture Hitachi, Ltd. Narashino, Hitachi, Ltd. In the factory (56) References JP-A-3-16609 (JP, A) Patent 2904594 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) B01D 25/12-25/21

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 side of the upper filter cloth (9), a pressurizing chamber (32) formed on the upper surface side of the reversing plate (8), a reversing plate (8) and the upper side Peeling means for introducing compressed air between the filter cloths (9) to separate the upper filter cloth (9) from the reversing plate (8); and removing the dewatering chamber forming plate (5) from the lower filter cloth (4). The reverse plate (8) has a periphery (8a) fixed thereto and forms a bent portion (8b) inside the periphery (8a). A dehydrator characterized in that it is formed in an inverted dish shape in which a tapered portion (8c) inclined upward toward the center is formed inside the bent portion (8b).