JP3392322B2 - Solid-liquid mixture separation device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of preparation or treatment of foods and equipment used therefor, and more specifically, for example, separation of okara and soymilk during tofu production or fried production. The present invention relates to a solid-liquid mixture separation device for separating a solid-liquid mixture obtained by mixing a solid substance and a liquid substance into a filtrate and a solid substance.

[0002]

2. Description of the Related Art Conventionally, in the production of tofu or deep-fried food, after soaking in water overnight, a solid-liquid mixture as obtained by boiling ground soybeans while adding water (hereinafter referred to as "specification"). (Also referred to as "go liquid"), that is, a solid-liquid mixture separation device for separating a liquid by filtering a liquid from a solid-liquid mixture in which a solid substance and a liquid substance are mixed.

An example of the solid-liquid mixture separating device is, for example, an outer casing and an inner dewatering screen in which a large number of holes are formed, which are arranged in a double cylindrical shape and provided in the dewatering screen. There is a method in which a spiral screw to be driven is rotationally driven to compress and separate a solid-liquid mixture in which a solid substance and a liquid substance are mixed into a filtrate and a solid substance.

However, the above-mentioned conventional apparatus has a problem that the soybean milk is greatly damaged. That is, in the conventional apparatus, the diameter of the holes of the dewatering screen is formed small in order to increase the compressibility (for example, 0.
05-0.1 mm), when soymilk passes through these minute holes, it undergoes a severe physical action, destroys the protein network structure, and in the case of fried food it does not grow and the skin becomes bad, and in the case of tofu. Had problems such as loss of elasticity, water retention and binding property.

Therefore, the applicant of the present application, as shown in FIG. 5, has a natural filtration section 101 for filtering and separating a liquid from a solid-liquid mixture in which a solid (okara) and a liquid are mixed, and the natural filtration section 101. The solid-liquid mixture separating apparatus for squeezing the solid-liquid mixture sent from the above is further provided with a dehydrating section 106 for separating the filtrate and the solid matter (Japanese Patent Application No. 9-1126).
87). The dehydrating section 106 of this apparatus is provided with a dehydrating screen 108 having a large number of holes formed in a cylindrical dehydrating side casing 107, and the diameter of the dehydrating screen 108 is 0.3 to 0. It is relatively large, such as 0.8 mm.

Therefore, according to the conventional apparatus disclosed by the applicant of the present application, soy milk can be naturally obtained in the natural filtration section, and then in the dehydration section, the soy milk is further squeezed, and the filtrate and the solid matter (okara) are extracted. ) Can be compressed and separated,
You can get good soy milk and okara. Further, in the dehydration section, there is also an advantage that the dehydration screen 108 has less irregularity.

[0007]

By the way, in the conventional apparatus having only the dehydration section and the separation apparatus for the solid-liquid mixture having the natural filtration section as well as the dehydration section, the sanitary aspect and the prevention of the above-mentioned slippage, etc. From the viewpoint of, it is required to wash regularly. And sometimes it is required to wash directly by hand.

However, first, in the natural filtration section 101 of the conventional solid-liquid mixture separating apparatus, both ends 103a and 103b of the filtration screen 103 are separately supported by the driving means 104 and the flange 105, respectively. After cleaning the filtration screen 103, in order to rotatably support the filtration screen 103 in the casing 102, both ends 103a, 1
03b had to be supported separately. Therefore, it is difficult to remove and attach the filtering screen 103, and a great deal of labor is spent on the attaching and detaching of the worker who performs cleaning. In particular, the rotating shaft 104a of the driving means 104 while holding the heavy filtration screen 103
The work of connecting to the filter has a problem that it is extremely difficult for a female worker or the like to attach the filtration screen 103.

On the other hand, in the dewatering section of the conventional apparatus, solid matter (okara) having a certain particle size or less is used for the dewatering screen 10.
8 and the dehydration side casing 107. That is, the above conventional device is provided with the dehydration side casing 1
Since the 07 and the dewatering screen 108 are configured in a double cylinder shape, there is a problem that Okara accumulates in these cylindrical gaps. Further, with the dehydration side casing 107 attached, it was impossible to directly wash the spiral screw 109 by hand.

Therefore, an object of the present invention is to provide a solid-liquid mixture separating device in which the filtration screen of the natural filtration portion can be easily removed and attached during washing. Also,
It is an object of the present invention to provide a solid-liquid mixture separating apparatus which is easy to wash without depositing solids on the dehydration section.

[0011]

In order to solve the above-mentioned problems, a solid-liquid mixture separating apparatus according to a first aspect of the present invention is provided.
A natural filtration section for filtering and separating a liquid from a solid-liquid mixture in which a solid matter and a liquid matter are mixed, and a dewatering section for further squeezing the solid-liquid mixture sent from this natural filtration section to separate a filtrate and a solid matter. Prepare The natural filtration section includes a casing having a closed structure having a lid, a filtration screen having a mesh structure arranged in the casing, a spiral blade arranged in the filtration screen, and the filtration screen. A drive shaft for rotating the drive shaft, and drive means for driving the drive shaft. One end of the drive shaft is fixed to the drive means side, and the other end of the drive shaft penetrates the inside of the casing and the rear surface of the lid body. It is characterized in that it is detachably attached to the side.

According to the present invention, when the filtration screen is removed from the casing for cleaning, the casing lid is opened and the filtration screen is pulled out, but one end of the drive shaft is on the drive means side. Since it is fixed and the other end penetrates through the casing and is detachably attached to the back side of the lid, if the casing lid is opened, the other end of the drive shaft is unsupported. It is possible to pull out a filtering screen with spiral blades inside. On the other hand, when the filtration screen is cleaned and the filtration screen is mounted in the casing, one end of the drive shaft remains fixed to the drive means side.
When the filtration screen is arranged in the casing and the lid of the casing is closed, the other end of the drive shaft is supported at the same time when the lid is closed, and the installation of the filtration screen is completed.

In order to solve the above-mentioned problems, a solid-liquid mixture separating apparatus according to a second aspect of the present invention comprises a natural filtration section for filtering and separating a liquid from a solid-liquid mixture in which a solid substance and a liquid substance are mixed. , A tank in which the solid-liquid mixture sent from the natural filtration unit is further squeezed to separate into a filtrate and a solid matter, and almost the entire portion of the dehydration unit for compressing and separating the solid-liquid mixture is stored. With. The dewatering unit is composed of a dewatering screen having a cylindrical shape and a large number of holes, a spiral screw arranged in the dewatering side screen, and a drive means for driving the spiral screw. It is characterized by being

According to the present invention, the dehydration section does not have a dehydration-side casing as in the conventional apparatus. However, almost the entire portion of the dehydrating section for compressing and separating the solid-liquid mixture is housed in the tank for storing the solid-liquid mixture. Therefore, a part of the compressed solid matter of the solid-liquid mixture sent from the natural filtration section is discharged from the dehydration screen as it is and stored in the tank, and the solid matter is dehydrated as in the conventional device. There is no accumulation between the side casing and the dewatering screen. When the dewatering unit is washed, since the dewatering screen is exposed in this tank, a washing hose or the like can be drawn into the tank to wash the dewatering screen directly by hand. it can. Furthermore, by adopting a structure in which the side surface of the tank is formed in the same manner as the lid of the natural filtration section, the dehydration screen and the spiral screw can be easily washed by hand by removing the dehydration screen from the tank. You can also

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 3, the main configuration of the solid-liquid mixture separation device of the present embodiment is as follows.
It is composed of a natural filtration section 1 and a dehydration section 21, which are vertically arranged side by side, and a large-capacity tank 50 arranged so as to cover the dehydration section 21 from below. The circulation of these is performed by the tank 50 and the natural filtration unit 1, the supply pipe 13 and the supply nozzle 11.
The natural filtration unit 1 and the dehydration unit 21 are connected by a connecting pipe 31.
The tank 50 and the tank 50 are connected by an overflow pipe 17.

First, the natural filtration part 1 is a part for naturally obtaining soymilk from the soybean soup obtained in the previous step (boiling), and as shown in FIG. 4, has a closed casing 2 having a lid 10. A filtering screen 3 arranged in the casing 2, a spiral blade 4 arranged in the filtering screen, and a drive shaft 5 for rotating the filtering screen 3.
And a drive means 6 for driving the drive shaft 5.

The casing 2 has a cylindrical shape with both ends open, and the opening at one end is a flange 7 and the other opening is a lid 10. In this way, the sealed structure prevents the entry of outside air into the casing 2 and the outflow of steam from the inside of the casing 2 to the outside air, and the casing 2 is filled with the cleaning liquid,
When cleaning the casing 2 and the filtration screen 3,
This is to prevent the cleaning liquid from leaking. That is, the flange 7 is attached to one opening of the casing 2. Further, outside the flange 7, a drive unit 6 on the side of the natural filtration unit, to which a rotary shaft 8 is connected, is fixed.
The drive means 6 is a rotary motor that rotates the filtration screen 3, and is covered with a cover.

One end 5a of the drive shaft 5 is fixed to the drive means 6 via the rotary shaft 8. Further, a sealing means 9 is provided at one end 5a of the drive shaft 5 and rotatably seals between the one end 5a and the rotary shaft 8. Although not shown, the drive shaft 5 is provided with an engaging convex portion for engaging with the filtration screen 3, and when the drive shaft 5 is rotated, the filtration screen 3 is rotated.

On the other hand, a lid 10 is provided in the other opening of the casing 2. The lid 10 is a disc-shaped one used when the filtering screen 3 arranged in the casing 2 is pulled out for cleaning or maintenance.
It has a size that covers the entire area of the opening on the other end side of the casing 2. Then, the other end 5b of the drive shaft 5 is detachably attached to the back surface 10b of the lid body 10 via the bearing 12. Thus, the drive shaft 5 for rotating the filtration screen 3 has one end 5a fixed to the drive means 6 via the rotary shaft 8 and the other end 5b supported by the back surface 10b of the lid 10. Therefore, the drive shaft 5 is stably supported. It should be noted that the drive shaft 1 has one end 1a at the driving means 6
The other end 1b may not reach the lid 10 of the casing 2 as long as it is fixed to the side.

The outer peripheral portion of the lid 10 is screwed to the casing 2 by a bolt, and the lid 10 can be removed by removing the bolt. Further, the lid 10 is provided with a handle 10a so that it can be easily held by hand. Further, a hinge connecting portion 10c is provided near the handle 10a of the lid body 10 and has an opening / closing structure that opens and closes from one side. When the lid 10 is opened, it can be opened from one side after moving in parallel with the casing 2 (in the direction of the arrow in the figure). Also, the lid 1
The other end 5b of the drive shaft 5 is supported on the rear surface side 10b of 0 through the bearing portion 12. Further, a supply nozzle 11 penetrating the lid body 10 is attached to the lid body 10. One end side of the supply nozzle 11 is open inside the casing 2, and the other end side is connected to the supply pipe 13.

Further, the filtering screen 3 is of a cylindrical shape contained in the casing 2 and has a double cylindrical shape together with the casing 2. The filtration screen 3 has a mesh structure 3a of about 70 to 120. Also,
The filtering screen 3 is formed with an annular portion (not shown) through which the drive shaft 5 is inserted at the center of the cylindrical shape, and three supporting rods are formed around the annular portion at an angle of about 120 degrees. 3b is provided. In addition, an engaging concave portion (not shown) that engages with the engaging convex portion of the drive shaft 5 is formed in the annular portion of the filtering screen 3 so as to connect the drive shaft 5 and the filtering screen 3 together. Relative rotation is engaged.
Furthermore, the filtration screen 3 has coaxial spiral blades 4 fixed to its inner periphery. The pitch of the spiral blades 4 is even.

The natural filtration section 1 having such a structure is connected to the dehydration section 21 by a connecting pipe 31. A cleaning valve 20 used for cleaning is provided in the middle of the connecting pipe 31. A soybean milk outlet 15 for discharging the filtered soybean milk is provided on the lower surface of the casing 2, and a cleaning liquid outlet 18, which is an outlet for the cleaning liquid, is provided on the upper surface. Further, an overflow pipe 17 is provided on the other end side of the casing 2 of the natural filtration unit 1,
The outlet 17a of the overflow pipe 17 is guided to the tank 50.

Next, as shown in FIG. 4, the dehydrating section 21
The solid-liquid mixture sent from the natural filtration section 1 is further squeezed to separate into a filtrate and a solid matter.
A spiral screw 26 arranged in the dewatering screen 22 and a drive means 3 for driving the spiral screw 26.
It is composed of 0 and 0. Further, since the portion 21A of the dehydrating section 21 that compresses and separates the solid-liquid mixture is housed in the tank 50, the tank 50 also constitutes a part of the dehydrating section 21. .

First, the tank 50 serves as a tank for storing the solid-liquid mixture of the conventional apparatus and also serves as a dehydration-side casing. , The lid 5 for covering the storage portion 50a
0b and 0b. The lower portion of the tank 50 is gradually narrowed to form a discharge port 50e on the tip side. Then, the tank 50 has both side surfaces 50c,
One side surface 50c of 50d is connected to the connecting pipe 31,
On the other side 50d, a fixed plate 19 having an open center is attached. That is, one side surface (right side in FIG. 4) 50c of the tank 50 is connected to the connecting pipe 31 and the flange 1.
It is connected via 6. The flange 16 has an opening at the center, and one end of the connecting pipe 31 is screwed.

At the other end of the connecting pipe 31, a drive means 30 on the dehydrating section side is fixed by being covered with a cover. The drive means 30 is a drive motor that drives the spiral screw 26. The bearing portion 24 is provided on the side of the driving means 30.
One of the central shafts 26a of the spiral screw 26 is connected via the. The center shaft 26a is rotatably sealed by a sealing means 35 on the drive means 30 side.

On the other hand, the fixed plate 19 is attached to the other side surface 50d of the tank 50, and the solid matter discharge portion 27 is formed through the fixed plate 19. First, this fixed plate 1
A screw bearing 29 is fixed to the outside of the screw 9. Thereby, the other end of the central shaft 26a of the spiral screw 26 is rotatably supported by the screw bearing 29.

The dewatering screen 22 has a cylindrical shape with relatively coarse holes. That is, the dehydration section 21 of the present embodiment does not have a dehydration side casing as in the above conventional apparatus, and the dehydration screen 22 constitutes the outermost periphery of the dehydration section 21. Dewatering screen 2 with such a large number of holes
2 may be punched or formed by a method other than punching. And the dehydration screen 2
2 has a diameter of 0.3-
It is formed relatively large, such as about 0.8 mm. Therefore, a part of the dehydrated solid matter is directly discharged into the tank 50 from the hole of the dehydration screen 22.

A spiral screw 26 having the central axis 26a is provided inside the dehydrating screen 22. The spiral screw 26 is provided with a solid matter discharge portion 27.
The pitch of the spiral screw 26 is gradually narrowed toward the position.

The storage portion 50a of the tank 50 is adapted to store substantially the entire portion 21A of the dehydrating portion 21 for compressing and separating the solid-liquid mixture. This is to efficiently collect a part of the solid matter discharged from the holes of the dewatering screen 22. In this way, the tank 50
Is also used to store the soybean soup heated in the previous step and also to collect solids and the like discharged from the holes of the dewatering screen 22. Since the dehydration screen 22 constitutes the outermost circumference, the dehydration screen 22 is exposed when the lid 50b is opened.

As described above, the dehydrating section 21 of the present embodiment
In the case of the conventional device, the dewatering side casing and the dewatering screen are not partitioned or joined to each other as in the conventional device, so that the number of components of the solid-liquid mixture separation device is reduced. Further, since the tank 50 also serves as the tank for storing the solid-liquid mixture of the conventional apparatus and the dehydration side casing, the number of components is reduced.

On the other hand, a solid matter discharge portion 27 is provided on the other end side of the dewatering screen 22. That is, the other end of the dewatering screen 22 is provided with the fixed plate 19 on the other side surface 50d (left side in FIG. 4) of the tank 50, and the solid matter discharge portion 27 is provided outside the fixed plate 19. Has been. This solid matter discharge part 27 is provided with an outlet pipe 32.
And a hood 33 that covers the open end of the outlet pipe 32 on the one end side.
And a sliding lid 34 that is movable in the hood 33 toward and away from the open end of the outlet pipe 32.

First, the outlet pipe 32 has a reduced diameter at its open end and is provided with a locking projection 37 on its outer circumference. Hood 3
3 is detachably fixed to the outlet pipe 32 by inserting the inner periphery into the open end of the outlet pipe 32 and fixing the retaining portion 38 provided on the outer periphery to the retaining projection 37 by the clamp 39.
An outlet 41 is formed on the lower surface of the hood 33, and the outlet 41 is located immediately below the opening of the outlet pipe 32.
At the time of cleaning, although not shown, a cleaning pipe is attached to the outlet pipe 32.

The sliding lid 34 is formed in a tubular shape with one end closed and the other end open. In addition, an inclination is formed in a direction in which the entire length becomes shorter as the opening side of the other end goes downward. Therefore, the Okara discharge interval between the outlet pipe 32 formed by sliding the sliding lid 34 and the sliding lid 34 changes in opening degree in proportion to the sliding amount of the sliding lid 34. A pressing shaft 44 is fixed to one end of the sliding lid 34, and the pressing shaft 44 serves as the hood 33.
One end is slidably penetrated and protrudes to the outside. An opening / closing handle 45 is provided at the tip of the pressing shaft 44 protruding to the outside. A coil spring 46 is provided on the outer periphery of the pressing shaft 44, one end of which abuts against the inner wall of the hood 33 and the other end of which abuts on the sliding lid 34. It is urged toward the opening side of 32. Further, the outlet pipe 32 is also the lid 10 of the natural filtration unit 1.
In the same manner as the above, one side can be released via the hinge connecting portion 40. Therefore, when the outlet pipe 32 is opened, the dehydration screen 22 can be removed from the tank 50.

Next, a case where soy milk and okara are actually separated by using the solid-liquid mixture separating apparatus of the present embodiment will be described. First, the soybean soup heated in the previous step (boiling) is sent to and stored in the tank 50. As shown in FIG. 2, this soybean soup is sent from the supply pipe 13 to the supply nozzle 11 by the supply pump 25. And is supplied into the filtration screen 3 of the natural filtration unit 1. Therefore, in the natural filtration section 1, as shown in FIG. 4, the filtering screen 3 is rotationally driven by the driving means 6, and the filtering screen 3 is rotated.
The soymilk that is naturally filtered by the rotation of is discharged from the soymilk outlet 15 of the casing 2 to the outside.

Next, the soybean soup whose water content is reduced to some extent by the natural filtration unit 1 is passed through the connecting pipe 31 to the dehydration unit 21.
Into the dewatering screen 22. The soybean soup that has entered the dewatering screen 22 of the dewatering unit 21 has a spiral screw 26.
Is sent to the other end of the dewatering screen 22, is further dewatered and compressed by the spiral screw 26 having a gradually narrowing pitch, and is sent to the solid matter discharge part 27.

Here, since the dehydration section 21 of the present embodiment does not have a dehydration side casing unlike the conventional apparatus, a part of the dehydrated solid matter is dehydrated on the screen 22 for dehydration.
After passing through the hole of (1), it is returned to the tank 50 as it is and supplied to the supply pipe 13 again.

The pore size of the dehydrating screen 22 is
Since it is set to 0.3 to 0.8 mm, the dehydration screen 22 will not be scratched. In addition,
The soybean soup, which has overflowed in the natural filtration unit 1 and whose water content has decreased to some extent, is sent to the overflow pipe 17.

In this way, the filtrate and Okara returned to the tank 50 are sent to the natural filtration unit 1 again with the new soybean soup by the supply pump 25, and further, in the dehydration unit 21, the solids discharge unit together with other Okara. It is pumped to 27. On the other hand, the Okara pressure-fed to the solid matter discharge unit 27 slides the sliding lid 34 in the direction away from the outlet pipe 32 against the biasing force of the coil spring 46, and the sliding lid 34 slides. From the gap between the formed sliding lid 34 and the outlet pipe 32, the gas is discharged by the outlet 41 on the lower surface of the hood 33 (in the direction of the arrow in FIG. 4).

By the way, in the present embodiment, the dehydrating section 21
The pressure can be adjusted easily. Sliding lid 34 and outlet pipe 3
Okara discharge gap between the outlet pipe 32 of the sliding lid 34 and
Since the opening is formed so as to expand in proportion to the amount of sliding in the direction away from, the squeezing action of the spiral screw 26 in the solid matter discharge portion 27 is stabilized, and the internal pressure of the screw press sharply decreases. This is because it is possible to prevent the reduction of the squeezing action of the solid matter.

Next, the case of cleaning the solid-liquid mixture separating apparatus thus configured will be described. First, in the cleaning of the natural filtration part 1 of the present embodiment, when the lid 10 of the casing 2 is opened, the other end 5b of the drive shaft 5 is dismounted and the filtration screen 3 having the spiral blade 4 inside. Can be pulled out. On the other hand, when the cleaning of the casing 2 is completed and the filtration screen 3 is mounted in the casing 2, the filtration screen 3 is disposed in the casing 2 and the engaging convex portion of the drive shaft 5 and the filtration screen 3 are disposed. When the lid 10 of the casing 2 is closed by engaging the engaging recess of the screen 3, the lid 10 is closed and at the same time the other end 5 of the drive shaft 5 is closed.
b is supported and the mounting is completed.

On the other hand, in cleaning the dehydration section 21, the tank 50
When the lid 50b of the tank is opened, the storage portion 50a of the tank 50 is
Since the dehydration screen 22 is exposed inside, it is possible to directly wash the inside of the tank 50 and the dehydration screen 22 by hand by pulling in a cleaning hose or the like. In addition, if the tank 50 is almost filled with the cleaning liquid,
The tank 50 and the dewatering screen 22 can be cleaned at the same time. Further, by closing the cleaning valve 20 and sending the cleaning liquid by the supply pump 25,
When the cleaning liquid fills the natural excess portion 1, the cleaning liquid is discharged from the cleaning liquid outlet 18 and returns to the tank 50, so that the filtration screen 3 and the casing 2 are cleaned.

Further, the outlet pipe 32 can also be released on one side via the hinge connecting portion 40. Therefore,
When the outlet pipe 32 is opened, the dewatering screen 22 can be removed from the tank 50, so that the spiral screw 26 can be directly washed by hand. In the cleaning of the present embodiment, the hood 33 and the sliding lid 34 attached to the outlet pipe are removed, a cleaning pipe is connected to the outlet pipe 32, and the cleaning water is circulated for cleaning. It is possible to

As described above, in the present embodiment, the case of separating okara and soybean milk in the production of tofu or deep-fried food has been described. However, the solid-liquid mixture separation device of the present invention is used for squeezing fruit or wort. Of course, it can also be used for separation and the like, and in particular, it can be widely applied to the case of producing delicate liquid substances such as soymilk which are easily affected by physical action.

[0044]

In the natural filtration section of the solid-liquid mixture separating apparatus of the present invention, one end of the drive shaft is fixed to the drive means via a rotary shaft, and the other end penetrates the casing to cover the lid. It is detachably attached to the back of the. Therefore,
Removal and installation of the filter screen, as compared to conventional devices that required separate support at both ends of the filter screen to rotatably support it in the casing during cleaning. Is extremely easy, and the labor of attaching and detaching the worker during cleaning is reduced.

On the other hand, the dehydration section of the solid-liquid mixture separating apparatus of the present invention is not provided with a dehydration-side casing as in the conventional apparatus, and almost all of the sections for compressing and separating the solid-liquid mixture of the dehydration screen are separated. The whole is stored in a tank that stores the solid-liquid mixture. Therefore, in the dehydration unit, which further squeezes the solid-liquid mixture sent from the natural filtration unit and separates it into a filtrate and solid matter, a portion of the solid matter having a predetermined pore size or less is discharged as it is from the holes of the dehydration screen to the tank. Since it is stored, the solid matter of the solid-liquid mixture does not accumulate between the dehydration side casing and the dehydration screen in the dehydration section, unlike the conventional apparatus. Also, since almost the entire part of the dehydration unit that separates the solid-liquid mixture by compression is stored in the tank that stores the solid-liquid mixture, draw a washing hose into the tank to remove water from the inside of the tank. The screen can be washed simultaneously and easily.

Further, by providing a lid on the side surface of the tank in the same manner as the natural filtration section, the dehydration screen can be removed by opening the lid, and the dewatering screen can be directly washed by hand. Therefore, the solid-liquid mixture separation device can be sufficiently washed, and sanitary aspects can be improved. Further, unlike the conventional device, since the dehydration side casing is not arranged, it is possible to reduce the number of components of the solid-liquid mixture separation device and to provide an inexpensive solid-liquid mixture separation device. .

[0047]

[Brief description of drawings]

FIG. 1 is a front view showing a solid-liquid mixture separator according to an embodiment of the present invention.

FIG. 2 is a side view of the one embodiment.

FIG. 3 is a plan view of the one embodiment.

FIG. 4 is an enlarged cross-sectional view of a natural filtration unit and a dehydration unit according to the above embodiment.

FIG. 5 is an enlarged cross-sectional view of a conventional solid-liquid mixture separation device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 natural filtration part, 2 casing, 3 filtration screen 4 spiral blades, 5 drive shafts, 5a, 5b both ends of a drive shaft 6 natural filtration part drive means, 8 rotary shafts, 10 lids, 11 supply nozzles, 13 supply pipes , 21 dehydration section,
21A A part for compressing and separating the solid-liquid mixture of the dehydration part,
22 screen for dehydration, 26 spiral screw, 25
Supply pump, 31 connecting pipes, 50 tanks

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-7-303458 (JP, A) JP-A-53-38678 (JP, A) JP-A-10-296494 (JP, A) JP-A-3- 254394 (JP, A) JP 55-180394 (JP, A) JP 8-208 (JP, A) JP 7-213827 (JP, A) JP 62-191013 (JP, A) Actually open 1-163515 (JP, U) Actually open 62-68591 (JP, U) Actually open 52-26678 (JP, U) Actually open 7-15189 (JP, U) Japanese Patent Sho 44-22474 (JP, B1) JP-B-52-100 (JP, B2) (58) Fields investigated (Int.Cl. ⁷ , DB name) A23L 1/20 B01D 33/00 B30B 9/14

Claims (2)

(57) [Claims] 1. A natural filtration section for filtering and separating a liquid from a solid-liquid mixture in which a solid matter and a liquid matter are mixed, and a solid-liquid mixture sent from this natural filtration section is further squeezed to separate into a filtrate and a solid matter. And a dehydrating section for the natural filtration section, wherein the natural filtration section has a casing having a closed structure, a filtration screen having a mesh structure disposed in the casing, and a spiral blade disposed in the filtration screen. A drive shaft for rotating the filtration screen and drive means for driving the drive shaft, one end of the drive shaft is fixed to the drive means side, and the other end of the drive shaft penetrates through the casing. A solid-liquid mixture separation device, which is detachably attached to the back side of the lid. 2. A natural filtration section for filtering and separating a liquid from a solid-liquid mixture in which a solid matter and a liquid matter are mixed, and a solid-liquid mixture sent from this natural filtration section is further squeezed to separate into a filtrate and a solid matter. And a tank for storing substantially all of the portion of the dehydrating section that compresses and separates at least the solid-liquid mixture. The dehydrating section is cylindrical and has a large number of holes for dehydration. An apparatus for separating a solid-liquid mixture, comprising a screen, a spiral screw arranged in the dewatering screen, and drive means for driving the spiral screw.