JPH08103237A - Solid-liquid separating device for slurry of soybean - Google Patents

Abstract

PURPOSE: To provide a solid-liquid separating device for a slurry of soybean, attaining a sufficient filtering action even in a very small filtration pore of a filtering cylinder, excellently maintaining purity of soybean milk. CONSTITUTION: An outer cylinder 1 is supported by a machine body 7 and a frame 71 at the tip side and is provided with a soybean milk outlet 10 opening at the inner bottom at the tip part of the outer cylinder in a bored state. A filtration cylinder 2 provided with very small filtration pores 20 made of stainless steel in a through state is connected to arms 31, supported on a supporting cylinder 3 provided with water through holes 30 and arranged concentrically in the outer cylinder 1. A transporting screw 4 with a spirally projected blade 42 on the outer periphery of a revolving shaft 41 is arranged in the filtration cylinder 2 and a suction pipe 61 of a suction pump 6 is connected to the soybean milk outlet 10 at the bottom of the outer cylinder 1. A slurry of soybean 8 is strongly filtered while being transported forward by rotation of the transporting screw 4 because the hollow part of the outer cylinder 1 is made under negative pressure more than the interior of the filtration cylinder 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feed screw type separation device for separating soybean soup obtained by boiling soybeans into soy milk and lees.

[0002]

2. Description of the Related Art Conventionally, a feed screw type separation device for separating soybean soup into soybean milk and lees is used in an outer cylinder having a feed screw having blades spirally projecting around the outer periphery of a rotary shaft. The soymilk dropped into the outer cylinder while being inserted into and supported by the filtration cylinder placed in, and filtered by the filtration cylinder while the soybean soup supplied to the rear part of the feed screw was sent by the rotating feed screw, and the soybean milk fell from the tip. Was pushed out.

However, the finer the filter holes of the filter tube, the poorer the separation of soymilk, and the larger the filter holes, the more mixed the lees and the poorer the purity of the soymilk. . This problem was also common to other soybean soup separators.

[0004]

SUMMARY OF THE INVENTION Therefore, the present invention provides a separation device capable of maintaining a sufficient soy milk purity even if the filtration holes of the filtration cylinder are made minute.

[0005]

Therefore, according to claim 1 of the present invention, soybean soup obtained by boiling soybeans is separated into soy milk and lees, and a blade is spirally formed on the outer periphery of the rotating shaft. The protruding feed screw is inserted and supported in the filtration cylinder arranged in the outer cylinder installed sideways, and while pushing out the lees from the tip of the rotating feed screw, the outer cylinder of the filtered soymilk is dropped. A soymilk outlet is provided on the inner bottom, and soybean soup is supplied to the rear part of the feed screw. A suction pump is provided for making the inner hollow part of the outer cylinder have a negative pressure from the inside of the filtration cylinder, and the suction pipe is used for the outer cylinder It is a solid-liquid separation device for soybean soup, which is connected to the soy milk outlet on the inner bottom. According to claim 2, the soybean soup obtained by boiling soybeans is separated into soy milk and lees, and a feed screw having blades spirally projecting around the outer periphery of the rotary shaft is installed laterally. Inserted and supported in the filtration cylinder placed inside the cylinder, pushing out the lees from the tip of the rotating feed screw and supplying the soybean soup to the rear part of the feed screw, blocking the upper position from approximately the center of the filtration cylinder. Place the soy milk receiving box that seals the filtration section below it in the lower part of the inner circumference of the outer cylinder,
The suction pipe of the suction pump is connected to the soybean milk outlet of the soybean milk receiving box so that the inside of the soybean milk receiving box has a negative pressure than the inside of the filter cylinder.

[0006]

According to the first aspect of the present invention, the soybean soup supplied to the rear portion of the feed screw is filtered by the filter cylinder while being sent forward and naturally falls to the inner bottom of the outer cylinder, and the suction pipe of the suction pump is connected to the inner bottom of the outer cylinder. Since it is connected to the soymilk outlet of the soybean milk, the inner hollow part of the outer cylinder excluding the filtration cylinder becomes a negative pressure than the inside of the filtration cylinder, so the soybean milk of soybean soup in the high pressure filtration cylinder is sucked to the low pressure outer cylinder side. It will be dropped and dropped. Therefore, soy milk can be filtered with good purity by natural separation and forced separation of the soybean soup.
The soy milk is discharged from the suction tube to the outside of the outer cylinder.

According to claim 2, in the state of claim 1,
Since the upper part of the filter cylinder is in the closed position and the filter part below it is closed by the soy milk receiving box, the soy milk receiving box becomes low pressure via the suction pipe by the suction pump, Since the pressure becomes negative, soy milk is forcibly sucked by a considerable pressure difference and falls into the soy milk receiving box.

[0008]

Embodiment 1 Hereinafter, the details of the present invention will be described with reference to illustrated embodiments. In this example shown in FIGS. 1 and 2, reference numeral 1 denotes an outer cylinder, which is supported by the machine body 7 and a frame 71 on the front end side, and a soybean milk outlet 10 opened at the inner bottom of the front end is absent at the bottom. There is. Reference numeral 2 denotes a filtration cylinder made of stainless steel and having fine filtration holes 20 provided therethrough, and is supported by an arm 31 connected to a support cylinder 3 having a water passage hole 30 provided at its outer periphery. The support cylinder 3 is also supported by the machine body 7 and the frame 71 on the front end side and arranged concentrically in the outer cylinder 1.

Reference numeral 4 denotes a feed screw, which is arranged in the filter cylinder 2 and is formed by spirally projecting the blades 42 on the outer circumference of the rotary shaft 41, and the interval between the blades 42 is shortened toward the tip. . The rear end of the rotary shaft 41 is supported by a bearing 72 in the machine body 7, and is rotated by being connected to a transmission mechanism (not shown) with a motor. Also,
The tip portion is supported by passing through the axial center portion of the disk portion 5 which is arranged oppositely. Reference numeral 73 is a boiled soybean soup supply pipe. The above configuration is conventionally known.

A characteristic feature of this example is that the pump 6 is provided and the suction pipe 61 is connected to the soybean milk outlet 10 at the bottom of the outer cylinder 1. The outer cylinder 1 except for the gap between the tip of the feed screw 4 and the disk portion 5 and the outlet of the soybean soup supply pipe 73.
The inside is sealed.

According to this example, the soybean soup 8 supplied from the soybean soup supply pipe 73 to the rear portion of the feed screw 4 is filtered by the filter hole 20 of the filter cylinder 2 while being forwardly fed by the rotation of the feed screw 4. The soymilk 81 naturally falls on the inner bottom of the outer cylinder 1, and the lees 82 are extruded from between the tip of the feed screw 4 and the disc portion 5.

Since the soy milk 81 is sucked from the suction pipe 61 by driving the suction pump 6, the soybean milk 81 is sucked out from the inside of the filtration cylinder 2 which is at a high pressure due to the press-fitting pressure of the soybean soup and the back pressure caused by the rotation of the feed screw 4. The inner space of the cylinder 1 has a negative pressure. Therefore, the soybean milk 8 of the soybean soup 8 in the high-pressure filter cylinder 2
1 is sucked into the low pressure outer cylinder side through the water passage hole 30 of the support cylinder 3 and dropped. The soy milk 81 is discharged from the outer tube 1 through the suction pipe 61.

As described above, according to this embodiment, the soybean milk 81 is sufficiently filtered by the natural separation of the soybean soup 8 and the forced separation by the suction pump 6, so that the soybean milk 81 is sufficiently filtered even if the filter holes 20 have fine sieve meshes, and soy milk 81 of good purity is obtained. Of.

[0014]

Second Embodiment Next, the embodiment shown in FIG. 3 has a configuration different from that of the first embodiment, in which the non-perforated plate 23 is closed at a position above the approximate center of the entire length of the filtration cylinder 2, A soybean milk receiving box 9 which is in close contact with the filtering portion and has a sealed inside is attached to the lower portion of the inner circumference of the outer cylinder 1. Then, the suction pipe 61 of the suction pump 6 is connected to the soymilk outlet 91 provided at the bottom of the soymilk receiving box 9.

According to this example, the upper part of the filter tube 2 from the center is closed and the filter part below it is sealed by the soymilk receiving box 9, so that the suction pump 6 drives the suction tube 61. Since the inside of the soybean milk receiving box 9 becomes a low pressure and becomes a negative pressure from the inside of the filter cylinder 2, the soybean milk 81 is forcibly sucked and falls into the soybean milk receiving box 9 due to a considerable pressure difference. Then, the soy milk 81 is discharged from the suction pipe 61 to the outside.

Although each of the embodiments is constructed as described above,
The present invention is not limited to this. For example, an ordinary discharge pump, a vacuum pump, or the like may be used regardless of the type and configuration of the suction pump. Further, the shape and configuration of the suction tube and the mounting position are not limited. Further, the configurations of the outer cylinder, the filtration cylinder and the feed screw, and the supporting means are also appropriate.

In the second aspect, the configuration in which the upper position from the substantial center of the filter cylinder is closed is also optional, and the upper portion of the outer cylinder is brought into close contact with the filter cylinder so that the upper position is closed from the approximate center. Good. In addition, the shape, configuration, and attachment of the soymilk receiving box that seals the filtering portion below the approximate center of the filtering cylinder are not limited. Further, the soy milk receiving box need not be arranged along the entire length of the feed screw, but may be arranged only at the front part of the filter tube where the filtration amount decreases.

[0018]

According to claim 1 of the present invention, soy milk having a high purity can be obtained by the natural separation of the soybean soup and the forced separation by the suction pump so that the soy milk can be sufficiently filtered even with fine sieve openings. You can get it. Further, in claim 2,
The suction pump lowers the pressure in the soy milk receiving box, forcibly sucking the soy milk from the filter cylinder, so that the soy milk is sufficiently filtered even with fine sieve openings.

[Brief description of drawings]

FIG. 1 is a partially cutaway vertical side view showing an embodiment of the present invention.

FIG. 2 is an enlarged vertical sectional front view of an essential part thereof.

FIG. 3 is an enlarged vertical sectional front view of a main part of another example.

[Explanation of symbols]

 1 Outer Cylinder 10 Soy Milk Outlet 2 Filtration Cylinder 20 Filtration Hole 3 Support Cylinder 4 Feed Screw 41 Rotating Shaft 42 Blade 5 Disc Part 6 Pump 61 Suction Tube 7 Machine 8 Go Liquid 81 Soy Milk 82 Kame 9 Soy Milk Receiving Box 91 Soy Milk Outlet 91

Claims (2)

[Claims] 1. An outer cylinder for separating a soybean soup obtained by boiling soybeans into soy milk and lees, and a feed screw having blades spirally projecting around the outer periphery of a rotary shaft, which is installed laterally. Inserted and supported in the filtration cylinder placed inside, pushing out the lees from the tip of the rotating feed screw, providing a soymilk outlet on the inner bottom of the outer cylinder where the filtered soymilk falls, and at the rear of the feed screw. In the soybean soup supply apparatus, a suction pump for making the inner space of the outer cylinder a negative pressure from the inside of the filtration cylinder is provided, and the suction pipe is connected to the soymilk outlet on the inner bottom of the outer cylinder. Solid-liquid separation device for go liquid. 2. An outer cylinder for separating a soybean soup obtained by boiling soybeans into soy milk and lees, and a feed screw having blades spirally projecting around the outer circumference of a rotary shaft, which is installed laterally. Inserted and supported in the filter cylinder placed inside, pushing out the lees from the tip of the rotating feed screw and supplying the soybean soup to the rear part of the feed screw. The soy milk receiving box that seals the filtration part below it is placed in the lower part of the inner circumference of the outer cylinder, and the suction pipe of the suction pump is connected to the soy milk receiving port of the soy milk receiving box and the inside of the soy milk receiving box is inside the filtration tube. A solid-liquid separation device for soybean soup, which is characterized by a more negative pressure.