JPH05214360A - Method for squeezing oil and device therefor - Google Patents

Abstract

PURPOSE:To efficiently and continuously effect a series of oil squeezing treatment of supply of raw material fats and oils, squeezing and oil collecting and discharge of raw material fat and oil in extremely improved workability. CONSTITUTION:An oil squeezing device 10 is equipped with a container 14 to store raw material fats and oils, a hydraulic cylinder 16 to be introduced into the container 14 to press the raw material fats and oils and a discharge shutter 40 to actuate by a hydraulic cylinder 50. The raw material fats and oils thrown from a hopper 58 are squeezed and an oil is collected in the container 14, pushed out from one opening side of the container 14 and raked out and discharged by rotation of the discharge shutter 40. Consequently, a series of oil squeezing treatment can be successively carried out and efficiency and workability of oil squeezing can extremely be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for extracting oils and fats from oil and fat raw materials such as rice bran and soybeans.

[0002]

2. Description of the Related Art As a device for collecting oils and fats contained in oils and fats raw materials such as rice bran and soybean, there is known an oil squeezing device for extracting oils and fats by compressing these oils and fats raw materials.

This oil squeezing device has a cage as a container for storing the oil and fat raw material, and a hanging head (push metal) that can be fitted in the cage.
Is equipped with. There are two types of cages, a so-called British type in which cage bars are arranged vertically in parallel and the outside is fastened with iron rings, and a so-called German type in which a myriad of small holes are formed in the outer circumference of an iron cylinder. Raw materials for oils and fats such as rice bran and soybeans are stored inside.

On the other hand, a pressurizing device which is operated by water pressure or hydraulic pressure is connected to the hanging head (or a mounting plate on which the cage is mounted), and by operating this pressurizing device, the cage and the hanging device are suspended. It is possible to move relative to the head.

During oil collection, when the oil / fat raw material is stored in the cage and the pressurizing device is operated, the droop fits in the cage, and the oil / fat raw material is squeezed by the droop in the cage, whereby The oil and fat contained can be collected.

[0006] Compared with the solvent extraction method (apparatus) in which oil is extracted by adding a solvent to an oil / fat raw material, the oil extraction apparatus for extracting oil by such a pressing method has a better quality of the crude oil extracted and uses a solvent. Since it does not, there are advantages such as less danger.

[0007] By the way, such a conventional compression type oil crushing device is under high pressure and for a long time (for example, 10
It had to be pressurized with a compressive force of 0 to 300 kg · f / cm ² for 2 to 3 hours), which had a drawback that the efficiency of oil extraction was poor.

Further, unlike the liquid, the rice bran, sesame, and other powdered and granular materials used as the raw material for fats and oils do not evenly transmit the pressure applied by the drooping when they are stored in a cage and pressurized. The degree was uneven. That is, the oil / fat raw material located in the center of the cage is less susceptible to pressure from the drooping compared with the oil / fat raw material located in the side wall portion of the cage, and thus requires a long time to be sufficiently squeezed. There was a problem that the efficiency of squeezing was poor in the oil and fat raw material located in the central part of.

In this case, in order to improve the efficiency of oil extraction,
The oil / fat raw material is pre-pressurized with a pressure smaller than the original pressure to reduce the volume (so-called temporary tightening),
Next, there has been proposed an oil extraction method in which a plurality of the reduced oil and fat raw materials are stacked and housed in a cage, and then compressed by the original pressing force (so-called final tightening) to collect oil.

According to this method, as compared with the method in which the oil / fat raw material stored in the cage is simply squeezed in a single pressurizing step, more oil / fat contained in the oil / fat raw material is collected in a shorter time. The oil can be efficiently extracted.

However, in the conventional oil squeezing method for performing such temporary tightening and final tightening, the step for temporary tightening and the step for main tightening are independent of each other. It is necessary to perform the final tightening step after performing the temporary tightening step once, and there is a drawback that the workability of oil extraction is extremely poor. Similarly, in a conventional oil pressing device that performs temporary tightening and final tightening, a cage and pressurizing device for temporary tightening and a cage and pressurizing device for final tightening are separately configured, so that when oil is pressed, Has a drawback in that it is necessary to take out the oil and fat raw material after the temporary tightening from the temporary tightening cage and replace it with the final tightening cage.

Therefore, the applicant of the present invention has already proposed an oil squeezing method and an apparatus for improving the oil squeezing efficiency and workability (Japanese Patent Application No. 2-290361).

According to the above-mentioned oil pressing method and apparatus proposed by the present applicant, since the oil / fat raw material is continuously squeezed and oil is collected in a single oil / fat raw material container, after the temporary tightening step of the oil / fat raw material is performed once. Compared to the method / apparatus that performs the final tightening step (after replacing the cage) to collect oil, the workability is significantly improved, and more oil and fat contained in the oil / fat raw material can be collected in a short time. The oil can be efficiently extracted.

[0014]

By the way, in the above-mentioned oil extraction method and apparatus proposed by the present applicant, as described above, many oil extraction treatments can be continuously carried out and more oil can be collected in a short time. Although there are advantages, for example, when processing different types of oil and fat raw materials, or when conditions such as temperature are different, in order to discharge the oil and fat raw materials smoothly, the opening size of the discharge port of the device for discharging It was necessary to finely adjust the above, etc. corresponding to each of the above conditions. That is, there is room for improvement in that not only the efficiency of oil collection is improved, but also the raw material of oil and fat is efficiently discharged.

In consideration of the above facts, the present invention is capable of efficiently and continuously performing a series of oil extraction treatments of supplying an oil / fat raw material, squeezing oil, and discharging an oil / fat raw material, and a method for oil extraction which greatly improves workability. The purpose is to obtain the device.

[0016]

A method for squeezing oil according to a first aspect of the present invention is a method for squeezing an oil / fat raw material by squeezing the oil / fat raw material at a predetermined pressing force, wherein a predetermined amount of the oil / fat raw material is used. A preliminary step in which the oil and fat raw material storage container is supplied and stored, pressurized to reduce the volume, and which is repeatedly performed until the pressure applied to the stored oil and fat raw material reaches the predetermined pressure, After the preliminary step, this step of pressurizing the oil / fat raw material stored in the oil / fat raw material storage container with the predetermined pressure to extract oil from the oil / fat raw material, and a part of the oil / fat raw material storage container after the main step. And a discharge step of sequentially pushing out the oil / fat raw material to the outside until the minimum storage amount of the oil / fat raw material remaining in the oil / fat raw material storage container is discharged, and the preliminary step, this step and the discharging step are sequentially performed. Repeatedly It is characterized in that to oil extraction.

An oil squeezing device according to a second aspect of the present invention is an oil squeezing device for collecting oil and fat contained by squeezing an oil and fat raw material, the raw material having a box-like shape with both ends open and containing the oil and fat raw material. It is arranged corresponding to the storage container and one end of the raw material storage container, and the oil and fat raw material can be squeezed and released with a predetermined pressing force by inserting and withdrawing from the one end opening of the raw material storage container into the raw material storage container. Corresponding to the other end of the raw material storage container and is movably arranged between a state in which the other end opening is opened and a state in which the other end opening is closed, and the other end opening of the raw material storage container is opened. In the state, the oil and fat raw material in the raw material storage container squeezed by the pressurizing means can be pushed out from the other end opening of the raw material storage container to the outside, and at the time of moving to the closed state, A material discharge means for discharging the oil raw material extruded from the other end opening of the raw material container taken forcibly scraped, further comprising a are characterized.

[0018]

In the oil pressing method according to the first aspect of the present invention, in the preliminary step, the oil / fat raw material is pressurized to reduce its volume, and this is performed once or a plurality of times to be stored in the oil / fat raw material storage container.

When the stored amount reaches the predetermined amount and the predetermined pressure is applied to the oil / fat raw material, the state in which the predetermined pressure is applied is maintained in this step, whereby the oil / fat raw material is squeezed. It is made and oiled.

Next, in the discharging step, a part of the oil / fat raw material storage container is opened, and the oil / fat raw material in the oil / fat raw material storage container is forcibly extruded and discharged sequentially until the minimum storage amount is reached.

After that, a new oil / fat raw material is supplied and stored, and the preliminary step, this step and the discharging step are repeated,
The oil and fat raw material that is supplied and stored is sequentially squeezed to squeeze the oil and fat, and oil is continuously collected.

In this way, since the oil / fat raw material is continuously squeezed and oil is collected in a single oil / fat raw material container,
The workability is significantly improved as compared with the method in which the temporary tightening process of the oil and fat raw material is once performed and then the final tightening process is performed again to collect oil. Furthermore, more oil and fat contained in the oil and fat raw material can be collected in a short time, and the efficiency of oil extraction is good. Further, since the oil / fat raw material after oil collection is forcibly pushed out and discharged, the discharge efficiency is good and the workability is improved.

In the oil squeezing apparatus according to the second aspect of the present invention, first, the raw material discharge means is in a state of closing the other end opening of the raw material storage container. Next, the oil / fat raw material supplied into the raw material storage container is stored in the storage container while its volume is reduced by one or a plurality of preliminary pressurizing steps by the pressurizing means. When the stored amount is a predetermined amount, that is, a predetermined pressing force is applied to the oil / fat raw material, and this pressing force is further maintained, the oil / fat raw material is squeezed and oil is collected.

After the oil has been collected and a predetermined time has passed,
The other end opening in the raw material container is opened by the raw material discharging means. Therefore, the oil / fat raw material in the raw material storage container is pushed out from the other end opening of the raw material storage container by the pressurizing means. Further, the oil / fat raw material pushed out from the raw material storage container is forcibly scraped and discharged by the movement of the raw material discharge means to the state where the inside of the raw material storage container is closed.

After that, a new oil / fat raw material is again supplied and stored, and the oil / fat is squeezed out by the pressurizing means in sequence, the oil / fat raw material after the oil collection is discharged, and this is repeated for continuous oil collection. Done.

In this way, the oil and fat raw material is squeezed and discharged in a single raw material storage container, and the discharged amount (reduced amount)
According to the above, the oil is newly supplied and continuously squeezed to collect oil.Therefore, the workability is significantly improved compared to the case where the oil and fat raw material is temporarily tightened and then the final tightening step is performed again to collect oil. To do. Furthermore, more oil and fat contained in the oil and fat raw material can be collected in a short time, and the efficiency of oil extraction is good. Further, the oil and fat raw material after oil collection is forcibly scraped and discharged by the raw material discharging means, so that the discharging efficiency is good and the workability is improved.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an oil extraction device 10 according to an embodiment of the present invention.
Is shown in perspective view. Further, FIG. 2 shows a front view of the oil pressing device 10, and FIG. 3 shows a partially broken plan view of the oil pressing device 10. Further, FIG. 4 shows a perspective view of a main part of the oil extraction device 10.

In the oil squeezing apparatus 10, a container 14 as a raw material storage container is fixed to a central portion of a base 12, and at one end of the base 12, a hydraulic cylinder 16 constituting a pressurizing means is provided. It is arranged so as to face one end of 14.

The container 14 is formed in the shape of a box with both ends in the axial direction open, and the axis is in the lateral direction (that is,
Both end openings are arranged horizontally). This container 14 has pressure resistance. At the end of the container 14 on the hydraulic cylinder 16 side, a guide plate 18 for partitioning one end opening of the container 14 in the width direction (direction of arrow A in FIG. 3) at equal intervals.
Are mounted parallel to each other. Also container 14
As shown in FIG. 3, the widthwise dimension of the inside is gradually widened in the direction opposite to the hydraulic cylinder 16 along the axis (from the left side to the right side in FIG. 3).

A filter plate 20 is arranged inside the container 14. As shown in detail in FIG. 4, the filter plate 20 is fitted and fixed in a fitting groove 22 formed in the bottom of the container 14 in the axial direction, and is arranged in the container width direction (arrow A in FIG. 3) orthogonal to the axis of the container 14. A plurality of (7 in this embodiment) are arranged at predetermined intervals in the direction.
Between each filter plate 20 and the container 14
A storage portion 24 for the oil and fat raw material is formed between the inner peripheral wall of the filter plate 20 and the filter plate 20, and the pusher 26 of the hydraulic cylinder 16 is fitted into the storage portion 24 while being guided by the guide plate 18.

Each filter plate 20 is in the form of a relatively thick plate and is gradually thinned along the axis of the container 14. Therefore, each storage unit 2 that stores the oil and fat raw material
4 is gradually widened (enlarged) from one end (the hydraulic cylinder 16 side) of the container 14 toward the other end.

An inner filter 28 is attached to both side walls of the filter plate 20, and an outer filter 30 is integrally attached to the outer periphery of the inner filter 28 in a state of being in close contact with the inner filter 28. The inner filter 28 is a relatively coarse mesh (for example, a 3 mm wire mesh), while the outer filter 30 is a fine mesh (for example, 300 μm).
Mesh). Therefore, the outer filter 30 allows only the oil / fat component contained in the oil / fat raw material to pass therethrough, and the inner filter 28 allows the oil / fat that has passed through the outer filter 30 to drop sequentially. Instead of the inner filter 28, inclined grooves may be formed on both side walls of the filter plate 20.

A plurality of cutouts 32 are formed at the lower end of the filter plate 20, and a guide path 34 is inclined in the middle of the fitting groove 22 of the container 14 corresponding to the cutouts 32. Is formed. Therefore, the oil and fat dropped downward by the inner filter 28 flows into the guide passage 34 from the cutout portion 32, and further, the guide passage 34.
It is a structure that can be recovered from the oil recovery hole 36 formed in the.

On the other hand, at the other end of the base 12, a discharge shutter 40 constituting a raw material discharging means is arranged so as to face the other end opening of the container 14. The discharge shutter 40 is
It is composed of a plurality of (four in this embodiment) arm portions 42 formed in a substantially fan shape in a side view and arranged in parallel with each other, and an arc-shaped shutter portion 44 fixed to the tip of the arm portion 42. ing. A fan-shaped base end portion (an end portion on the opposite side of the shutter portion 44) of the plurality of arm portions 42 is rotatably supported by a support shaft 46 horizontally arranged on the side wall 14A of the container 14. The shutter portion 44 corresponds to the opening portion on the other end of the container 14 described above, and the arm portion 42.
Is rotated around the support shaft 46 to come into contact with and separate from the end opening of the storage portion 24 formed by the filter plate 20 and the container 14, thereby opening and closing the end opening of the storage portion 24. It is a configuration that can. The discharge shutter 40 (the arm portion 42 and the shutter portion 44) has pressure resistance like the container 14.

One end portion of each of a pair of arms 48 is integrally fixed to the pair of arm portions 42 located inside of the arm portions 42 of the discharge shutter 40. Therefore,
By operating the other end of the arm 48, the arm 42
(That is, the discharge shutter 40) can be rotated around the support shaft 46.

At the other end of the arm 48, a hydraulic cylinder 50 which constitutes a raw material discharging means together with the discharging shutter 40.
Are connected. The hydraulic cylinder 50 is rotatably supported on the base 12 by a support shaft 52, and has a structure in which the tip end of an actuator 54 is connected to the other end of the arm 48. Therefore, when the hydraulic cylinder 50 operates and the actuator 54 expands and contracts, the discharge shutter 40 can be rotated around the support shaft 46 via the arm 48. In this embodiment, the rotation angle of the discharge shutter 40 by the operation of the hydraulic cylinder 50 is about 60 degrees.

At the top of the container 14, a hydraulic cylinder 16
A fat and oil raw material input port 56 is formed at the end on the side of, and a hopper 58 is attached. As a result, the oil / fat raw material can be charged from the hopper 58 into the container 14 (storage portion 22). A rod-shaped heater 60 is inserted in the vicinity of the oil / fat raw material inlet 56 of the container 14, and the tip of the heater 60 is inserted into each filter plate 20 in the container 14. The heater 60 can heat each filter plate 20 to a predetermined temperature.

Next, the operation of this embodiment will be described. here,
5 to 8 schematically show the operating state of each part when the oil-fat raw material G is subjected to the oil-crushing process by the oil-crushing device 10.

In the oil extracting device 10, at the time of oil collection, a predetermined amount of the oil / fat raw material G is first stored in a preliminary step.

That is, the hydraulic cylinder 16 is most shortened so that the pusher 26 is most pulled out of the storage portion 24 of the container 14, and the hydraulic cylinder 50 is most shortened so that the shutter portion 44 of the discharge shutter 40 is the container. 14 other end opening part (filter plate 20 and container 1
4 is brought into contact with the end opening of the storage section 24 formed by 4 to close it. In this state, the hopper 58
When the oil / fat raw material G such as rice bran or soybean is put into the inside, the oil / fat raw material G is dropped and supplied from the oil / fat raw material inlet 56 into the storage portion 24 of the container 14. In addition, in parallel with this, the heater 6
0 heats each filter plate 20 to a predetermined temperature.

Next, the hydraulic cylinder 16 is operated. When the hydraulic cylinder 16 is activated, the pusher 2
6 enters the container 14, that is, the storage part 24 formed by the filter plate 20 and the container 14, and the oil / fat raw material G located immediately below the oil / fat raw material inlet 56 is stored in the storage part 2
4 is forcibly inserted into the one end portion side (the discharge shutter 40 side). Further, when the hydraulic cylinder 16 is contracted again, the oil / fat raw material G in the hopper 58 is changed to the oil / fat raw material inlet 56.
From the container 14 into the container 24, and this process is repeated a plurality of times thereafter, so that the oil / fat raw material G is reduced in volume and the container 14
It is stored in the (storage part 24) (the state shown in FIG. 5).

When the storage amount of the oil / fat raw material G stored in the container 14 becomes a predetermined amount, that is, the storage portion 24 becomes full, a predetermined pressing force is applied to the oil / fat raw material G. Then, this step is performed.

In this step, the pusher 26 is actuated by the hydraulic cylinder 16 to apply a predetermined pressure to the accommodating portion 2.
The oil / fat raw material G in 4 is pressurized, whereby the oil / fat raw material G is squeezed (state shown in FIG. 6). Therefore, the oil O contained in the oil material G passes through the outer filter 30, flows from the inner filter 28 into the guide passage 34, and is recovered from the oil recovery hole 36.

After the pressurization (compression) of the oil / fat raw material G by the hydraulic cylinder 16 (pusher 26) has progressed and a predetermined time has elapsed (that is, after a predetermined oil compression time has elapsed), the discharging step is performed.

In the discharging process, the hydraulic cylinder 50
Operate. When the hydraulic cylinder 50 operates and the actuator 54 extends, the operating force is transmitted to the discharge shutter 40 via the arm 48, and the discharge shutter 40 is rotated around the support shaft 46. As a result, the shutter unit 4
4 is separated from the opening portion of the other end of the container 14 and the storage portion 24 is opened. In this case, although the connecting portion of the actuator 54 and the arm 48 draws an arc-shaped movement trajectory around the support shaft 46 due to the extension of the actuator 54, the hydraulic cylinder 50 is rotatable by the support shaft 52. , Extension of actuator 54 and arm 4
The rotation of 8 (the discharge shutter 40) is not hindered. Then, when the hydraulic cylinder 16 is extended again, the oil / fat raw material G (so-called squeezed lees) after being squeezed at a high pressure is sequentially pushed out of the container 14 from the storage portion 24 as the pusher 26 moves (see FIG. 7). Status).

Next, the hydraulic cylinder 50 is contracted again and the discharge shutter 40 is rotated, so that the shutter portion 44
Is brought into contact with the other end opening portion of the container 14 (end opening of the storage portion 24) to close it. At this time, as the discharge shutter 40 rotates, the shutter portion 44 forcibly scrapes off the oil / fat raw material G pushed out of the container 14, and the oil / fat raw material G is discharged from the container 14 (FIG. 8).
(State shown). In this case as well, the extension of the actuator 54 causes the connecting portion between the actuator 54 and the arm 48 to draw an arcuate movement trajectory around the support shaft 46, but the hydraulic cylinder 50 is rotatable by the support shaft 52. The extension of the actuator 54 and the rotation of the arm 48 (discharging shutter 40) are not hindered.

When the discharge shutter 40 completes its rotation,
The shutter portion 44 is the other end opening portion of the container 14 (the storage portion 2
The end opening 4 is closed, and the next pressurizing process is in a standby state. In parallel with this, the hydraulic cylinder 16 is contracted again to bring the pusher 26 out of the storage portion 24, and the standby state for the next pressurizing process is set.

After that, the preliminary step, the main step, and the discharging step described above are sequentially repeated to continuously collect oil.

As described above, in the oil squeezing apparatus 10, since the oil / fat raw material is continuously squeezed in the single container 14 to collect oil, the temporary tightening step of the oil / fat raw material is once performed in a different container, and then the final tightening step is performed again. Compared with the method / apparatus for carrying out oil collection, it is not necessary to take out the oil / fat raw material after temporary tightening from the temporary tightening storage container and replace it with the final tightening storage container, and workability is greatly improved. Furthermore, more oil and fat contained in the oil and fat raw material can be collected in a short time, and the efficiency of oil extraction is good.

In the oil squeezing device 10, the oil / fat raw material (so-called squeezed lees) after being squeezed under high pressure is sequentially pushed out of the container 14 out of the container 14 as the pusher 26 moves, and the discharge shutter 40 is further provided. Since the shutter portion 44 is configured to forcibly scrape and discharge the oil / fat raw material by rotating, the oil / fat raw material is not clogged (retained) in the container 14, and the conditions such as the type of the oil / fat raw material and the temperature are Even if different, it is possible to reliably discharge the fat and oil raw material. Therefore, the discharge efficiency is good and the workability is improved.

Further, in the oil squeezing apparatus 10, since the container 14 is arranged laterally and the oil / fat raw material is squeezed horizontally, it is easy to uniformly press the oil / fat raw material, and the oil / fat contained in the oil / fat raw material can be further compressed in a short time. A large amount of oil can be collected and the oil is efficiently extracted. Further, the height dimension of the apparatus can be reduced, and the work of supplying the oil / fat raw material becomes easy.

Further, in the oil squeezing device 10, the storage portions 24 for the oil and fat raw material formed by the plurality of filter plates 20 are formed in a plurality of rows in the direction orthogonal to the axis of the container 14, and the storage portions 24 (each Since oil is squeezed from both sides of the filter plate 20 at one time, the efficiency of oil squeezing is significantly improved. In addition, since each filter plate 20 is heated by the heater 60, the temperature of the oil / fat raw material is increased, which also improves the efficiency of oil extraction.

Further, in the oil extraction device 10, the storage section 2
Since 4 is gradually expanded in the direction of the discharge shutter 40 and has a tapered shape, the pressing force is evenly and surely transmitted, and further, the oil and fat raw material is discharged smoothly without being clogged during discharging. It Therefore, oil extraction can be continuously and reliably performed.

Further, in the oil crushing device 10, the pusher 26 (hydraulic cylinder 16) for pressurizing the oil and fat raw material and the discharging shutter 40 (hydraulic cylinder 50) for discharging are independently configured, so that they are independently controlled. Therefore, it is possible to accurately perform the pressurizing time for oil extraction, the timing of discharge, and the like, and it is possible to easily cope with different types of fat and oil raw materials.

The oil squeezing device 10 in the above embodiment
Needless to say, can be used not only in the case of oil and fat raw materials such as rice bran and sesame but also in the case of collecting oil and fat contained in meat such as beef and fish.

[0056]

INDUSTRIAL APPLICABILITY As described above, the oil squeezing method and apparatus according to the present invention can efficiently and continuously perform a series of oil squeezing treatments such as supply of oil / fat raw material, compressed oil extraction, and discharge of oil / fat raw material. It has an excellent effect of improving workability.

[Brief description of drawings]

FIG. 1 is an overall perspective view of an oil extraction device according to an embodiment of the present invention.

FIG. 2 is a front view of an oil extraction device.

FIG. 3 is a partially cutaway plan view of the oil pressing device.

FIG. 4 is a perspective view showing a filter plate arranged in the oil pressing device.

FIG. 5 is a schematic cross-sectional view showing an operating state of an oil squeezing device and an oil squeezing state of a fat and oil raw material.

FIG. 6 is a schematic cross-sectional view showing an operating state of an oil pressing device and an oil pressing state of an oil / fat raw material.

FIG. 7 is a schematic cross-sectional view showing an operating state of an oil squeezing device and an oil squeezing state of an oil / fat raw material.

FIG. 8 is a schematic cross-sectional view showing an operating state of the oil pressing device and an oil pressing state of the oil / fat raw material.

[Explanation of symbols]

 10 Oil squeezing device 14 Container (raw material storage container) 16 Hydraulic cylinder (pressurizing means) 20 Filter plate 24 Storage portion 26 Pusher (pressurizing means) 28 Inner filter 30 Outer filter 40 Discharge shutter (raw material discharge means) 44 Shutter part (raw material) Discharging means) 50 Hydraulic cylinder (raw material discharging means) G Oil / fat raw material O Oil / fat

Claims (2)

[Claims] 1. A method for squeezing an oil / fat contained by squeezing the oil / fat raw material with a predetermined pressing force, wherein a predetermined amount of the oil / fat raw material is supplied to and stored in an oil / fat raw material storage container and the volume is increased. And a preliminary step of repeating this until the pressure applied to the stored oil and fat raw material reaches the predetermined pressure, and after the preliminary step, the oil and fat raw material storage container is stored. This step of pressurizing the oil / fat raw material with the predetermined pressing force to collect oil from the oil / fat raw material, and after the main process, opening a part of the oil / fat raw material storage container to leave the oil / fat raw material in the oil / fat raw material storage container And a discharge step of sequentially discharging the oil / fat raw material until it reaches the minimum storage amount and discharging the oil / fat raw material, wherein the preliminary step, the main step, and the discharge step are sequentially repeated for continuous oil extraction. 2. An oil squeezing device for collecting oil / fat contained by squeezing the oil / fat raw material, the raw material storage container having a box shape with both ends open and storing the oil / fat raw material, and the raw material storage container A pressurizing unit that is arranged corresponding to one end and that can press and release the oil and fat raw material with a predetermined pressing force by fitting and withdrawing the raw material storage container from the one end opening of the raw material storage container, and the raw material storage. Corresponding to the other end of the container, the other end opening is movably arranged between a state where the other end opening is opened and a state where the other end opening is closed. While allowing the oil and fat raw material in the compressed raw material storage container to be pushed out from the other end opening of the raw material storage container to the outside, from the other end opening of the raw material storage container when moving to the closed state An oil squeezing device comprising: a raw material discharge means for forcibly scraping and discharging the extruded oil and fat raw material.