JP2010279967A - Dehydrator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dehydrator, which is usable for multi-purposes, and to easily obtain a plurality of kinds of squeezed liquids, each of which contains particles different from others. <P>SOLUTION: In the dehydrator, a squeezing chamber 1 and a squeezed liquid chamber 2 are partitioned into the inside and the outside respectively by arranging a squeezing screen 10, which is made of a perforated plate and formed into an approximately cylindrical shape, and a jacket 11 in a state of double cylinder. Further, the dehydrator is composed so that the squeezed liquid chamber 2 is separated into two chambers or more by setting a partition material 3, which approximately annularly extends from the inner wall of the jacket 11 to the outside surface of the squeezing screen 10, on at least one portion in the squeezed liquid chamber 2 in the longitudinal direction. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a dehydrator for distinguishing insoluble solids from moisture. As long as it is used, it can be used to obtain food and drink such as juice, soy milk, okara, etc., and eventually to remove moisture from the solids processed as industrial waste (including sludge) and compress the amount of garbage. It is what is said.

As this type of dehydrator, for example, Patent Documents 1 and 2 below are known as dehydrators for food and drink. In Patent Document 1, the squeezing process is performed in a state where almost the entire inside of the jacket is immersed in the squeezed liquid (hereinafter, this is referred to as a submerged filtration method as appropriate), under a single squeezing chamber and a squeezing liquid chamber. The input is squeezed and filtered using a squeezing screen and screw.
Moreover, the following patent document 3 is known as a dewatering machine for sludge treatment in which the hole diameters of the screens are different from each other.

JP-A-8-275749 Japanese Utility Model Publication No. 7-26088 JP 2004-181511 A

In the case where the submerged filtration method is used, there are advantages that bubbles can be prevented from being generated in the squeezed liquid and that sticking of dirt resulting from drying of the mesh of the squeezing screen can be avoided. However, depending on the pore size of the screen and the type of object to be squeezed, the problem that the coarse solid insoluble solids settle in the squeeze liquid chamber and the squeezing chamber and cause clogging is a problem in the continuous operation time of the dehydrator. As it has become apparent as a hindrance, the conventional dehydrator with a single squeezing liquid chamber cannot overcome this problem, and its application is limited.
In particular, when trying to obtain food and drink such as fruit drinks such as soy milk and apples, in order to obtain the target directly, if the pore size of the screen eye is set according to the target from the beginning, the pore size is small. Thus, it is known from experience that the screen is not seen for a while after the operation, particularly when the submerged filtration method is employed.
Furthermore, under the conventional configuration, including the dehydrator of Patent Document 3, it is difficult to separate the juice into the desired two or more kinds of particles. Therefore, in order to reliably obtain a plurality of juices having different particles, There was a disadvantage that multiple dehydrators had to be used properly according to each application.

It is an object of the present invention to provide a dehydrator that can be used in a diversified manner depending on the purpose of use and the object to be dehydrated.
Another object of the present invention is to secure a sufficient continuous operation time and improve the dehydrating speed while reducing the burden on the dehydrator.
Still another object of the present invention is to reliably obtain a desired juice having different particles at a time.

The dehydrator according to the first aspect of the present invention includes a pressing screen 10 and a jacket 11 which are formed in a substantially cylindrical shape by a perforated plate, and are arranged in a double cylinder shape, and the pressing chamber 1 and the squeezing liquid chamber 2 are arranged inside and outside. In the dehydrator divided into two, a water intake 6 for taking out the juice is provided between the raw material charging port 8 provided at one end in the longitudinal direction of the dehydrator and the outlet 7 of the squeeze provided at the other end. A plurality of squeezing blades 5 that are inscribed in the squeezing screen 10 via an input A are provided on the outer peripheral surface of the squeezing shaft 4 that is rotationally driven inside the squeezing chamber 1. However, it is separated into two or more chambers by providing the partition material 3 extending in a substantially annular shape from the inner wall of the squeezed liquid chamber 2 to the outer surface of the squeezing screen 10 in at least one place in the longitudinal direction of the squeezed liquid chamber 2. It is characterized by being.
According to this, since the squeezed liquid chamber 2 is separated into two or more chambers through the partition material 3, a plurality of squeezed liquids having different particles can be obtained at a time by preventing the mixture of liquid substances. In the second half of the squeezing liquid chamber 2 divided by the partition material 3, for example, the second half squeezing liquid chamber 2 adopts a submerged filtration system in which dehydration is performed in a state where the squeezed liquid is full, and the first half of the squeezing liquid chamber 2 Then, it becomes possible not to employ the submerged filtration method, and the convenience is greatly improved.
In addition, in the first half (upstream side close to the raw material inlet 8) before the partition material 3 comes in contact, only the roughing is performed, and in the latter half after the partition material 3 comes in contact (downstream near the outlet 7 of the pressing paddle). The method of performing full-scale squeezing and dehydration can be selectively employed in the squeezing screen 10 on the side). As a result, when dewatering what is likely to generate insoluble solid content, the burden on the pressing screen 10 in the latter half can be reduced by pre-roughing in the first half, and the insoluble solid content can be reduced. By preventing the sedimentation and retention of the minute, the continuous operation time can be extended as the entire apparatus. Since the squeezing screen in the latter half can start squeezing from the state where rough squeezing has been completed, the intended squeezed liquid can easily pass immediately after operation, and the speed of dehydration processing increases dramatically.
These meanings become more prominent if the mesh hole diameters of the pressing screen 10 are different between the first half and the latter half, but even if the hole diameter is the same, the more the pressing time and number of times, the further away the raw material input port 8 is, the farther it is. Even in this case, it is possible to use them properly.
On the other hand, if it is not intended to obtain the squeezed liquid of multiple particles of different types or different types of rough squeezing and main squeezing, it can also be used as usual, such as making the dehydration efficiency uniform throughout the entire device .
Since the compression screen 10 here is sufficient if it is substantially cylindrical, a polygon close to a circle is also included. Further, the jacket 11 itself does not need to be cylindrical.

The dehydrator according to the present invention described in claim 2 has a porous area 10a in which the pressing screen 10 is located on the upstream side near the raw material inlet 8 and is configured by a set of substantially the same hole size d1, and more than the porous area 10a. It is composed of a porous region 10b composed of a set of substantially the same pore size d2 having a relatively small pore diameter and a connecting portion 10x having a constant width that connects the two, and in the longitudinal direction of the porous region 10a and the porous region 10b. The length ratio is set within a range of 1: 4 to 4: 1, and the partition member 3 is provided so as to be within the width of the connecting portion 10x.
According to this, since the pore diameters of the porous regions 10a and 10b are different, the use of rough squeezing and full squeezing can be made clearer. In addition, a plurality of juices with different particles can be obtained more easily. In addition, if the hole size d1 of the porous region 10a is about 3 to 6 times the hole size d2 of the porous region 10b, the effect of proper use of rough squeezing and main squeezing becomes clearer.

  According to the dehydrator according to the present invention, the user can freely select whether to use the rough squeezing / main squeezing, whether to use a submerged filtration method, or whether to produce a plurality of types of juices with different particles. Because it is possible, usability is greatly improved. In addition, a sufficient dehydration speed can be secured while taking advantage of the submerged filtration method (prevention of bubbles and clogging).

1 is a cross-sectional view showing an internal structure of a dehydrator according to Example 1. FIG. 1 is a schematic cross-sectional view of a pressing screen 10 and a partition material 3 according to Example 1. FIG. In the spin-dryer | dehydrator which concerns on Example 1, it is a flowchart until the squeezed liquid which came out from the water intake 6b returns to the raw material input port 8. FIG. It is a typical sectional view showing the state where the attachment position of partition material 3 was displaced in squeezed liquid chamber 2. FIG. 4A is a schematic cross-sectional view showing the internal structure of the dehydrator according to the second embodiment, in which a partition member 3 is provided on the upstream side compared to FIG. FIG. 4B is a schematic cross-sectional view showing the internal structure of the dehydrator according to the third embodiment, in which a partition member 3 is provided on the downstream side as compared with FIG. FIG. 4C is a schematic cross-sectional view illustrating the internal structure of the dehydrator according to the fourth embodiment. It is typical sectional drawing of the pressing screen 10 which concerns on Example 4. FIG.

  1 to 5 show an embodiment of a dehydrator according to the present invention.

FIG. 1 is a cross-sectional view illustrating the internal structure of the dehydrator according to the first embodiment. FIG. 2 is a schematic cross-sectional view of the pressing screen 10 and the partition material 3 according to the first embodiment.
The jacket 11 forming the squeezed liquid chamber 2 on the inner side is formed by detachably connecting two members, a jacket 11a and a jacket 11b, each formed in a cylindrical shape, using bolts and nuts.
On the inner surface of the squeezed liquid chamber 2, a pressing screen 10 formed into a cylindrical shape with a perforated plate is formed in a tapered cylindrical shape that becomes tapered as it approaches the outlet 7 of the pressing paddle. The service shaft 4 is inserted concentrically. A plurality of pressing blades 5 are provided on the outer peripheral surface of the pressing shaft 4 at substantially equal intervals so as to be substantially inscribed in the pressing screen 10. Each pressing blade 5 is formed in a spiral shape, and is driven to rotate together with the pressing shaft 4 by a motor outside the figure. Considering the dewatering efficiency, the pressing blade 5 here may be configured such that the pitch interval becomes narrower as it approaches the outlet 7 of the pressing paddle.
A raw material input port 8 is provided at one end in the longitudinal direction of the dehydrator, and one outlet 7 for the squeeze is provided at the other end, and the input A placed in the raw material input port 8 is supplied to the raw material by an unillustrated feeder. It is pumped from the inlet 8 toward the pressing chamber 1 and further toward the outlet 7 of the pressing paddle.

  The juicing fluid intake 6 is attached to the outside of the jackets 11a and 11b two by two over the upper and lower stages. This is because it is possible to freely adopt or reject the submerged filtration method in either of the first and second jackets 11a and 11b. Valves 15a to 15d are respectively attached to the intake ports 6a to 6d, and by opening and closing these, the squeezed liquid is taken in or the air accumulated in the squeezed liquid chamber 2 is discharged. When taking water from the water intake 6b or the water intake 6d, it is not always necessary to close the valve 15a or the valve 15c of the water intake 6a or the water intake 6c. However, when taking water from the water intake 6a, the valve 15b is used. It is necessary to keep the valve 15d closed when taking water from the water intake 6c. That is, the water intake 6a or the water intake 6c is withdrawn after the liquid level rises.

As shown in FIG. 2, the squeezing screen 10 is composed of a porous region 10a constituted by a set of substantially the same hole size d1 having a relatively large hole diameter and a set of substantially the same hole size d2 having a relatively small hole diameter. Porous region 10b and a connecting portion 10x having a constant width connecting the two. Since the connecting portion 10X here is a seam that does not simply form a porous region, the connecting portion 10X adopts a form in which the porous regions 10a and 10b are fitted in series after protruding into a flange shape. It may be integrally formed with the porous regions 10a and 10b.
The longitudinal lengths of the porous regions 10a and 10b are designed to correspond to the jackets 11a and 11b in FIG. 1, respectively.
The partition member 3 is provided in an annular shape from the outer peripheral surface of the squeezing screen 10 toward the inner peripheral surface of the jacket 11 so as to be within the width of the connecting portion 10x located approximately in the middle between the porous region 10a and the porous region 10b. The partition member 3 is preferably made of metal such as stainless steel, and is used by filling a gap with the jacket 11 with an unillustrated packing such as an O-ring. Here, although complete isolation is assumed, as long as the passage of passing objects can be blocked, extremely fine holes may be recognized.
In addition, although the intended object can be achieved even if the partition member 3 is welded to either the jacket 11 or the connecting portion 10x, a form in which the partitioning member 3 is fitted in the connecting portion 10x in the vertical direction is adopted. .
By separating the squeezed liquid chamber 2 into the squeezed liquid chamber 2a and the squeezed liquid chamber 2b by the partition material 3, not only a plurality of squeezed liquids having different particles can be obtained at one time, but also the coarse insoluble particles The solid content is taken in through the first porous region 10a and can be prevented from clogging the porous region 10b located in the second half, and the continuous operation time of the dehydrator can be effectively secured.

Next, some examples of actual use of the dehydrator will be described. Here, the liquid filtration system is not adopted in the first jacket 11a, and the liquid filtration technique is adopted in the latter 11b.
If the input A is boiled rice for obtaining soy milk and okara, the pore size d2 of the porous region 10b is preferably about 80 to 120 μm in diameter. The pore size d1 of the porous region 10a does not need to be clearly defined. However, if the porous region 10a is roughly squeezed and the porous region 10b is positioned as the main squeeze to improve the processing speed, the pore size d1 of the porous region 10a is determined. Is preferably about 500 to 700 μm in diameter. If rough squeezing is performed in advance, a sufficient amount of squeezed liquid can pass through the porous region 10b having a small pore diameter immediately after operation, so that the processing speed is greatly improved.
Here, it is efficient to return the coarsely squeezed juice extracted from the water intake port 6b to the raw material input port 8 again. As shown in FIG. 3, the squeezed liquid coming out of the water intake 6 b is stored in the simmering tank 20 through a non-illustrated pipe, and then returned to the raw material inlet 8 again by the pump P. By repeating such circulation, a sufficient amount of juice (soy milk) can pass through the porous region 10b at an early stage after the operation of the dehydrator, and the processing speed can be improved while eliminating waste.

Okara is taken out from the outlet 7 of the squeezed rice bran, but demand or consumption from okara is not so high compared to that of soy milk, and it is often the case that it falls into oversupply. In this case, the dehydrator can also be used for the purpose of compressing the amount of garbage by further removing moisture from the okara dumped as a residue. In this case as well, the hole size of the squeezing screen 10 and the point of circulating the coarse squeezed liquid discharged from the water intake 6b are the same.
In the case where moisture is removed from the beer lees produced in the process of producing beer, it can be performed in substantially the same manner as in the case of okara.

When obtaining fruit drinks such as apples and tangerines using this dehydrator, if you want to efficiently obtain only fine fruit drinks that are not mixed with pulp, It is sufficient to squeeze the squeezed liquid drawn from the water intake 6b and to properly use the squeezed water. The pore size d1 of the porous region 10a is desirably about 400 to 800 μm, and the pore size d2 of the porous region 10b is desirably about 80 to 140 μm.
On the other hand, if efficiently obtaining a plurality of squeezed liquids having different particles, the squeezed liquid taken from the water intake port 6b is not circulated, for example, the hole dimension d1 of the porous region 10a is about 1 to 3 mm in diameter, The hole size d2 of the porous region 10b can be set to a diameter of about 80 to 140 μm. By appropriately adjusting the supply speed of the input A and the rotational speed of the dehydrator, it is possible to directly obtain a fruit drink containing pulp from the intake 6b and a fruit drink free from pulp from the intake 6c. Is possible.

When targeting other than these, the absolute pore size of the squeezing screen 10 may vary greatly depending on the object to be dehydrated and the purpose, but if the squeezing screen 10 itself is detachable, the optimum screen can be selected according to the application. Is possible.

FIG. 4 is an explanatory view showing a state in which the attachment position of the partition member 3 is displaced.
FIG. 4A is a schematic cross-sectional view showing the internal structure of the dehydrator according to the second embodiment, and emphasizes the difference between “rough squeezing” and “main squeezing”, and only the latter jacket 11b. While adopting the submerged filtration method, it is suitable for the usage that puts the emphasis only on the intake of the juice obtained from the intake 6c. Also in this case, the squeezed liquid taken in at the water intake 6b is circulated as shown in FIG. The length ratio of the porous region 10a and the porous region 10b in the longitudinal direction is about 3:10. Specifically, the porous region 10a is about 150 mm and the porous region 10b is about 500 mm.
Although there is no strict experimental data, as the user's subjectivity when compared with soymilk under the same conditions, the amount of soymilk produced per unit time is lower in the dehydrator according to Example 2 than with the dehydrator according to Example 1. It rises about 1.2 times.

FIG. 4B is a schematic cross-sectional view showing the internal structure of the dehydrator according to the third embodiment. The length ratio of the porous region 10a and the porous region 10b in the longitudinal direction is about 9: 4. Specifically, the porous region 10a is about 450 mm and the porous region 10b is about 200 mm.
It is suitable for use in the case where the main purpose is to obtain a fruit drink containing pulp.

FIG. 4C is a schematic cross-sectional view showing the internal structure of the dehydrator according to the fourth embodiment. FIG. 5 is a schematic cross-sectional view of the pressing screen 10 and the partition material 3 according to the fourth embodiment.
Here, since the two partition members 3 are provided at substantially equal intervals, the squeezed liquid chamber 2 is separated into three chambers 2a, 2b, and 2c. Each connecting portion 10x that detachably divides each porous region 10a, 10b, and 10c has a configuration in which the flange portion protrudes slightly larger than the case of FIG. 2 according to the first embodiment and is connected by a bolt and a nut. It is said.
Here, as shown in FIG. 5, if the protruding height of the connecting portion 10x is adjusted so as to be close to the outer surface of the jacket 11 and is adjusted by packing or the like, the connecting portion 10x can also serve as the partition member 3. It is.
The length ratio of each of the porous regions 10a, 10b, and 10c is about 1: 1: 1, and specifically about 220 mm.

  According to the dehydrator according to the present embodiment, by adjusting the pore size of each screen, for example, a fruit drink containing large flesh, a fruit drink containing small flesh, a fruit drink not containing flesh, and so on A desired fruit drink can be easily obtained.

  By having n partition members 3 (numerical value n is an integer of 1 or more), the squeeze liquid chamber 2 is separated into (n + 1) members, and each pressing screen 10 is separated from each partition member 3 as a boundary. If the diameter of the eye is set so as to decrease as it goes downstream, more detailed usage is possible with a single unit.

DESCRIPTION OF SYMBOLS 1 Squeeze chamber 2, 2a, 2b, 2c Squeeze liquid chamber 3 Partition material 4 Squeeze shaft 5 Squeeze blade 6, 6a-6d Intake port 7 Squeeze outlet 8 Raw material inlet 10 Squeeze screen 10a, 10b, 10c Porous area 10x Connecting part d1 Hole size d2 of porous region 10a Hole size d3 of porous region 10b Hole size of porous region 10c 11 Jacket 15, 15a-15d Valve 20 Boiled tank P Pump

Claims (2)

A dehydrator that arranges a pressing screen (10) and a jacket (11) formed in a substantially cylindrical shape with a perforated plate in a double cylinder shape and divides the pressing chamber (1) and the juiced liquid chamber (2) into the inside and outside. In
A water intake (6) for taking out the juice is provided between the raw material inlet (8) provided at one end in the longitudinal direction of the dehydrator and the outlet (7) of the squeeze provided at the other end. And
A plurality of pressing blades (5) that are inscribed in the pressing screen (10) are provided on the outer peripheral surface of the pressing shaft (4) that is rotationally driven inside the pressing chamber (1) through the input (A). And
A partition material (3) in which the squeezing liquid chamber (2) extends in an approximately annular shape from the inner wall of the jacket (11) to the outer surface of the squeezing screen (10) in at least one place in the longitudinal direction of the squeezing liquid chamber (2). A dehydrator characterized by being separated into two or more chambers. The compression screen (10) is located on the upstream side close to the raw material inlet (8) and has a porous region (10a) constituted by a set of substantially the same pore size (d1), and a pore diameter relatively larger than the porous region (10a). Are composed of a porous region (10b) composed of a set of substantially the same pore size (d2) and a connecting portion (10x) having a constant width connecting the two,
The length ratio in the longitudinal direction between the porous region (10a) and the porous region (10b) is set within a range of 1: 4 to 4: 1.
The dehydrator according to claim 1, wherein the partition member (3) is provided so as to fit within a width of the connecting portion (10x).