TW201706202A - Isostatic pressurizing device and pressure processing method using the same for enabling foreign objects generated from object to be processed not to easily come into touch with devices that constitute a pressure vessel - Google Patents

Abstract

The invention provides an isostatic pressurizing device and a pressure processing method using the same. The isostatic pressurizing device is provided with a machine structure for enabling the foreign objects generated from the object to be processed not to easily come into touch with the devices that constitute the pressure vessel. The isostatic pressurizing device (100) comprises a cylindrical pressure vessel (1) for enabling the opening parts (1a, 1b) to be arranged at two axial ends and disposed transversely, and a device for pressurizing the object to be processed (for example, food with shell) placed in the pressure vessel (1) that presses, for example, ordinary water serving as the first pressure medium from the outside into the pressure vessel (1) that closes the opening parts (1a, 1b) by lids (10, 11). The isostatic pressurizing device (100) is provided with a bucket (6) having an upper portion defined therein a hole (13a). The aforementioned object to be processed is received inside the pressure vessel (1). The bucket (6) is placed with at least, for example, salt water serving as the second pressure medium. The specific gravity of the first pressure medium is smaller than the specific gravity of the object to be processed. The specific gravity of the second pressure medium is larger than the specific gravity of the first pressure medium.

Description

Equal pressure pressurizing device, and pressure treatment method using the same

The present invention relates to a pressure equalizing and pressurizing device for pressurizing a workpiece to be placed in a pressure vessel by a pressure medium of a liquid, and a pressure treatment method using the same.

In such a device, it is known to have, for example, the following Patent Document 1. This prior art is constructed as follows. The object to be treated is placed in a cylindrical pressure vessel whose lower end opening is closed by a pressure medium such as water, and the object to be treated in the pressure vessel is pressed by the pressure medium by pressing the piston from the upper end opening. It is treated by equal pressure equalization. This device using a piston is a pressure equalizing device called a piston direct pressure type. There is also a device in which the upper piston is closed by the upper cover, and the pressure medium is pressed from the outside into the pressure vessel to be in the form of a pressure equalization treatment of the workpiece, which is called an external boost type. Pressure equalization pressurization device. The object to be treated is exemplified by metal powder, ceramic powder, food, and the like. When the metal powder/ceramic powder is subjected to isostatic pressing treatment, a homogeneous (non-directional) compression-molded article can be obtained.

[Practical Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2010-94709

However, in the above-described apparatus in which the object to be processed is subjected to equal pressure and pressure treatment, there is a problem to be solved as follows. Foreign matter from the process of pressurization will occur from the object to be treated. This foreign matter is roughly divided into: a small specific gravity, and a larger specific gravity, and a foreign matter having a small specific gravity is not problematic, but a foreign matter having a large specific gravity has a sealing portion for a pressure vessel and a supercharger (high pressure pump), The possibility of damage caused by a pressure reducing valve or the like. Therefore, in the case of a foreign matter having a large specific gravity, it is necessary to directly contact the machine that constitutes a pressure equalizing press device such as a pressure vessel. Further, the object to be treated is a metal powder, a ceramic powder or the like, and the foreign matter generated is a chip or dust thereof, and the object to be treated is a food, and the foreign matter generated is, for example, a shell and a moss. Among the above-mentioned foreign matters, the metal powder ‧ ceramic powder fragments and shells are foreign materials that are relatively large, and dust and moss are foreign bodies with a small specific gravity.

In view of the above, an object of the present invention is to provide an equal pressure equalizing device and a pressurizing method using the same, and a device for preventing a foreign matter generated from a workpiece from being in direct contact with a pressure vessel or the like. The composition of the machine.

The equal pressure equalizing device of the present invention is provided with a cylindrical pressure vessel in which the opening portion is provided at both ends in the axial direction and is horizontally placed, and the first pressure medium of the liquid placed in the pressure vessel is pressurized. And the object to be treated in the pressure vessel is pressurized, and the pressure equalizing device includes a tub having a hole in the upper portion and accommodating the workpiece and being disposed inside the pressure vessel. At least the second pressure medium is placed in the tub, and the specific gravity of the first pressure medium is smaller than the specific gravity of the workpiece, and the specific gravity of the second pressure medium is equal to or greater than the specific gravity of the first pressure medium.

Further, the pressure treatment method of the present invention is a pressure treatment method using the above-described equal pressure pressurization device, and includes a process of receiving a workpiece in which the workpiece and the second pressure medium are placed in the tub, And a barrel storing process in which the barrel in which the object to be treated and the second pressure medium are placed in the pressure container from the opening, and the first pressure medium to be placed in the pressure container The pressurization process for pressurizing the aforementioned processed object to be placed in the aforementioned pressure vessel together with the aforementioned tub, and the aforementioned tub to be placed in the aforementioned pressurized processed object from the aforementioned pressure vessel The taken-out process of taking out the tub and the process of taking out the processed object from which the above-mentioned pressurized processed object is taken out from the tub.

According to the invention, the foreign matter can be difficult to directly contact with the structure. A machine that is a device such as a pressure vessel can prevent a machine such as a pressure vessel from being damaged by foreign matter generated by the workpiece.

O‧‧‧Oysters (food)

1‧‧‧ Pressure vessel

1a, 1b‧‧‧ openings

2‧‧‧Molded frame

3‧‧‧Drainage unit

3a‧‧‧Slots

4‧‧‧High pressure pump unit

5‧‧‧Control panel

6‧‧‧ barrel

7‧‧‧Supply conveyor belt

8‧‧‧Discharge conveyor belt

9‧‧‧Sliding device

10‧‧‧1st cover

10a‧‧‧Little Trails Department

11‧‧‧2nd cover

11a‧‧‧Little Trails Department

11b‧‧‧Great Path Department

12‧‧‧ barrel body

13‧‧‧ Cover

13a‧‧‧ hole

14‧‧‧ Hinges

15‧‧‧Roller (rotary device)

16‧‧‧Rotating device

16a‧‧‧ barrel holder

16b‧‧‧Rotary fulcrum members

17‧‧‧Rotating device

17a‧‧‧ barrel holder

17b‧‧‧Roller

18‧‧‧ barrel

19‧‧‧ Cover

19a‧‧ hole

51‧‧‧ Ordinary water (pressure media)

52‧‧‧Saline (second pressure media)

100‧‧‧ equal pressure pressurizing device

[Fig. 1] A perspective view showing an equal pressure equalizing device according to an embodiment of the present invention.

[Fig. 2] Fig. 2A is a plan view of the tub, and Fig. 2B is a cross-sectional view taken along line X-X of Fig. 2A.

[Fig. 3] A cross-sectional view showing the tub together with the rotating device, and Figs. 3, A, B, and C are exemplifying three methods of rotating the tub axis (upside down).

[Fig. 4] A cross-sectional view showing a state in which an oyster and a bowl in which salt water is placed are placed in a pressure vessel and normal water is poured into the pressure vessel, and Fig. 4A is a view showing a state in which no pressure is applied to the pressure vessel. Fig. 4B is a view showing a state in which pressure is applied to the pressure vessel.

[Fig. 5] A view showing a modification of the tub shown in Fig. 2, Fig. 5A is a plan view of the tub, and Fig. 5B is a Y-Y cross-sectional view of Fig. 5A.

Hereinafter, the form for carrying out the invention will be described with reference to the drawings. In addition, in the following description, the object to be treated is a shelled oyster (food), but the oyster is also a processing object. It is an example of the object to be processed, and the object to be treated is the object to be treated, and is not limited to oysters. The food other than the oyster may be used as the material to be treated with the inorganic powder (inorganic powder) of the metal powder and the ceramic powder.

(Construction of equal pressure pressurizing device)

The configuration of the equal pressure equalizing device 100 according to an embodiment of the present invention will be described with reference to Fig. 1. The equal pressure pressurizing device 100 according to an embodiment of the present invention is composed of a cylindrical pressure vessel 1 that is placed horizontally, a molded frame 2, a water supply and drainage unit 3 having a tub 3a, and a high pressure pump unit 4. The controlled control panel 5 is placed in a bucket 6 or the like in which the object to be treated is the oyster. The tub 6 is placed in the pressure vessel 1 by the supply conveyor 7, and is sent out of the pressure vessel 1 by the discharge conveyor 8. Further, the pressure vessel 1 is moved by the slide device 9 between the press frame 2 and the sides of the conveyor belts 7, 8.

The openings 1a and b provided at both ends in the axial direction of the pressure vessel 1 are closed by the first cover 10 and the second cover 11 attached to the press frame 2. As shown in Fig. 1, the second cover 11 has a large diameter portion 11b (a crotch portion) and a small diameter portion 11a, and the small diameter portion 11a is inserted into the opening portion 1b of the pressure vessel 1 in a secret manner. The first cover 10 has the same configuration as the second cover 11, and the small-diameter portion 10a of the first cover 10 is inserted into the opening 1a of the pressure vessel 1 in a secure manner. The openings 1a, b are in a state where the lids 10, 11 are closed, and the normal water as the first pressure medium stored in the tub 3a is pressed into the pressure vessel 1 by the high pressure pump unit 4, under pressure. The object to be treated in the container 1 (in the present embodiment, oyster O (refer to Fig. 4A)) is composed of The equal pressure is pressurized. In other words, the equal pressure pressurizing device 100 is an example of an external pressure-increasing pressure equalizing device that presses the first pressure medium into the pressure vessel from the outside and pressurizes the workpiece to be equalized and pressurized. Further, the normal water from the high pressure pump unit 4 is pressed into the pressure vessel 1 from, for example, an injection passage (not shown) formed in the first cover 10.

Further, a pressure equalizing press such as a piston direct pressure type may be used. In this case, for example, the second cover 11 is a piston. The length of the small diameter portion 11a of the second cover 11 is determined by design. When the opening 1a is closed by the first cover 10, the piston (the small diameter portion 11a of the second cover 11) is pressed by the hydraulic cylinder (not shown) or the like from the other opening 1b. Into, the object to be treated in the pressure vessel 1 is pressurized by a pressure medium by equal pressure equalization.

Explain the bucket 6. As shown in FIG. 2A and FIG. 2B, the tub 6 is attached to the upper portion of the tub body 12 by a cylindrical barrel body 12 whose both ends in the axial direction are closed and whose upper portion is open, and a transmission hinge 14. The lid body 13 having a circular arc shape is formed. In the lid body 13, a plurality of holes 13a are interposed. Further, the tub 18 of the modified example of the tub 6 is shown in FIG. 5A and FIG. 5B. As shown in Fig. 5A and Fig. 5B, the lid body 19 having the plurality of holes 19a has a flat plate shape. In this way, instead of the lid body 13 having a circular arc shape, a flat plate-shaped lid body may be used. Further, the cover body 19 is not attached to the tub body 12 through a hinge but is merely placed on the tub body 12. In this manner, the lid body 19 that is detachably attached to the upper portion of the tub body 12 may be detachably attached.

In the downstream side of the discharge conveyor 8, a third figure is arranged Roller 15 shown in A. The tub 6 taken out from the pressure vessel 1 by the discharge conveyance belt 8 is conveyed by the discharge conveyance belt 8 and placed on the pair of right and left rollers 15 as shown in Fig. 3 (Fig. 3A) State shown). In this state, the barrel 6 is rotated by 180° around the axis by mechanical (using power) or manpower. In this case, as shown on the right side in Fig. 3A, the cover 13 is opened by rotation around the re-wrapping hinge 14. The roller 15 is an example of a rotating device for rotating the tub 6 taken out from the pressure vessel 1.

The method (apparatus) other than the above for rotating the tub 6 is as shown in FIG. 3B and FIG. 3C. The rotating device 16 shown in Fig. 3B is a cylindrical barrel holding body 16a having a larger size than the barrel body 12 in the upper portion of the lid body 6 in which the tub 6 is opened, and is fixed to the tub. The outer peripheral rotating fulcrum member 16b of the holding body 16a is comprised. Further, the rotation fulcrum member 16b is fixed to a stationary object that does not operate. Similarly to the above-described roller 15, the rotating device 16 is disposed on the downstream side of the discharge conveyor 8 (the same applies to the rotating device 17 shown in FIG. 3C).

The tub 6 taken out from the pressure vessel 1 by the discharge conveyance belt 8 is placed in the tub holder 16a (the state on the left side in Fig. 3B). In this state, the tub holder 16a is rotated by 180° (flip) around the rotation fulcrum member 16b by mechanical (using power) or by human power. In this case, the lid body 13 is opened by rotation around the rewinding hinge 14 (the state on the right side in FIG. 3B). The tub body 12 and the tub holder 16a are contacted by frictional force without greatly moving relative to each other. Moreover, the barrel body 12 and the tub are made in such a manner that the tub body 12 does not operate with respect to the tub holder 16a. It is also possible that the holding bodies 16a are temporarily connected to each other.

Next, the rotating device 17 shown in FIG. 3C is a pair of barrel holding bodies 17a having a circular arc shape that is one turn larger than the tub body 12, and is disposed in the tub holding body 17a and the tub. The plurality of rollers 17b are formed between the bodies 12. Further, the pair of barrel holding bodies 17a are fixed to the stationary objects that do not operate.

The tub 6 taken out from the pressure vessel 1 by the discharge conveyance belt 8 is placed in the rotating device 17 (the state on the left side in Fig. 3C). In this state, the barrel 6 is rotated by 180° around the axis by mechanical (using power) or manpower. In this case, as shown on the right side in FIG. 3C, the lid body 13 is opened by rotation around the rewinding hinge 14.

(Pressure treatment method of oyster using equal pressure pressurizing device)

The pressure treatment method of the oyster O using the equal pressure press device 100 will be described with reference to Fig. 1, Fig. 4, Fig. 4B, and the like.

The lid 13 of the tub 6 is opened, and the salt water (salt water having a specific gravity larger than ordinary water) as the second pressure medium is placed in the tub body 12 together with the oyster O. At this time, the oyster O is a method of completely submerging in the brine, and a sufficient amount of the brine is placed in the tub body 12 (process of receiving the object). The salt water is, for example, seawater, but is not limited to seawater.

The tub 6 into which the oyster O and the salt water are placed is placed in the pressure vessel 1 from the opening 1a of the pressure vessel 1 (bucket storage process). Further, the pressure vessel 1 is slidably moved in the direction of the press frame 2, and the first lid 10 and the second lid 11 are operated by a hydraulic cylinder (not shown) or the like to press the pressure vessel 1 The openings 1a and 1b are closed by the first cover 10 and the second cover 11, respectively.

Next, the water supply and drainage unit 3 is operated, and the normal water 51 is injected into the pressure vessel 1. A state in which the normal water 51 is injected into the pressure vessel 1 is shown in Fig. 4A. The salt water 52 has a larger specific gravity than the normal water and remains in the state of being accommodated in the tub 6, so that the oyster O in the tub 6 is kept immersed in the saline 52. Then, the high pressure pump unit 4 is operated, the normal water 51 is pressed into the pressure vessel 1, and the oyster O is pressurized by equal pressure for a predetermined time (pressure treatment process). This state is shown in Figure 4B. Since the inside and the outside of the tub 6 are connected by the holes 13a, the pressure can surely act on the oyster O.

When the pressurization process is completed, the lids 10 and 11 are disengaged by retracting the first lid 10 and the second lid 11 against the pressure vessel 1, and the pressure vessel 1 is slid toward the conveyor belt side. And, the tub 6 placed in the pressurized oyster O is taken out from the pressure vessel 1 (bucket taking process).

The tub 6 is placed by the discharge conveyor 8 on a pair of left and right rollers 15 (refer to FIG. 3A). Moreover, the barrel 6 is rotated 180 around its axis by mechanical (using power) or manual force. The bucket 6 is turned upside down. In this case, as shown on the right side in Fig. 3A, the cover 13 is opened by rotation around the re-wrapping hinge 14. Thereby, the oyster O which is subjected to the pressure treatment is dropped from the tub body 12 together with the saline 52 (the process of taking out the workpiece).

The pathogen of oyster O can be sterilized and the virus is inactivated by the above-described pressure treatment, and the shell is easily peeled off. Further, since the brine 52 as the second pressure medium is kept in the state of being accommodated in the tub 6, Since the inner surface of the pressure vessel 1 hardly contacts the machine of the pump or the like constituting the high pressure pump unit 4, the salt water 52 can prevent corrosion of these machines by the salt contained in the brine 52. In addition, since the oyster O is held in the tub 6, the peeled shell is kept in the state of being accommodated in the tub 6. Therefore, it is possible to prevent the shell of the oyster O from directly contacting the pressure vessel or the machine mixed with the pump or the like constituting the high pressure pump unit 4.

(Modification)

In the above-described embodiment, the first pressure medium is made of ordinary water, and the second pressure medium is an example of using brine having a larger specific gravity than ordinary water, that is, the specific gravity of the second pressure medium is greater than that of the first pressure medium. In the case of a larger pressure medium, the specific gravity of the second pressure medium may be the same as the specific gravity of the first pressure medium. Referring to Fig. 4A, when the specific gravity of the second pressure medium is smaller than the specific gravity of the first pressure medium, the second pressure medium flows out from the hole 13a of the tub 6 toward the outside of the tub 6, but the first pressure When the specific gravity of the medium and the specific gravity of the second pressure medium are the same, the second pressure medium placed in the tub 6 does not easily flow out of the tub 6 during the pressurization process by the first pressure medium. When the second pressure medium does not easily flow out of the tub 6, the foreign matter from the workpiece does not easily flow out of the tub 6.

Further, in the above-described embodiment, the second pressure medium is made of brine (water containing salt), but a permeate having a specific gravity equal to or higher than the specific gravity of ordinary water may be used. In addition, in the case of the salt adjustment of the oyster O, it is also possible to use the salt water to which the salt is adjusted, and further, to oysters In the case where the fragrance is added to O, water (water containing a fragrance) to which a specific gravity equal to or higher than the specific gravity of the ordinary water is added may be used. Further, although the first pressure medium is preferably a common ordinary water, it may be replaced with ordinary water, and water which is sterilized by ozone may be used.

The salt water is placed in the tub 6, which is basically carried out by humans (by a person), but it is also possible to replace the manpower by automatically putting the brine into the tub 6. In this case, the injection of the brine into the tub 6 is controlled by the aforementioned control panel 5. That is, the control panel 5 may have a function of controlling the injection time point of the brine to the tub 6 and the amount of the injection.

(Effect)

According to the equal pressure pressurizing apparatus of the present invention and the pressurizing treatment method using the same, the pressure medium is not the only one used, but the first pressure medium having a specific gravity smaller than the specific gravity of the workpiece, and the specific gravity. The liquid pressure is equal to or greater than the specific gravity of the first pressure medium, that is, the pressure medium of the second pressure medium. The first pressure medium is placed in the pressure vessel, and the second pressure medium is accommodated together with the workpiece. Inside the barrel with the hole in the upper part, the barrel is placed inside the pressure vessel. Since the specific gravity of the first pressure medium is smaller than the specific gravity of the workpiece, the workpiece and the foreign matter generated therefrom are less likely to flow out of the tub. Further, by setting the specific gravity of the second pressure medium to be equal to or higher than the specific gravity of the first pressure medium, the workpiece and the foreign matter generated therefrom are less likely to flow out of the tub. Therefore, the foreign matter generated from the object to be processed can be closed into the tub, and the foreign matter can be hardly directly contacted with the device constituting the device such as the pressure vessel. Thereby, it is possible to prevent the machine such as the pressure vessel from being treated by the object to be treated Foreign body damage occurred.

Further, since the object to be processed is not placed directly in the pressure vessel, but the object to be processed is placed in the pressure vessel in a state where the object to be processed is placed in the tub, the treatment property of the object to be treated is excellent. Further, when the object to be treated is a food, the pressure medium (second pressure medium) in the tub can be easily discharged every time the food pressurization treatment is performed, so that the sanitary surface is also excellent.

Here, the bucket is composed of a bucket body into which the workpiece and the second pressure medium are placed, and a lid body having a hole that is detachably attached to the upper portion of the tub body through a hinge, and Preferably, the rotating device for rotating the barrel shaft taken out from the pressure vessel is provided with an equal pressure pressing device. According to this, the object to be treated which is subjected to the pressurization can be easily taken out from the pressure vessel.

When the object to be treated is a food, it is preferred to use water containing a salt or a flavor as the second pressure medium. When the second pressure medium uses water containing salt or flavored water, the flavor and flavor of the salt can be added to the food, and the commercial value of the food can be improved. In this case, when the pressure medium contains a salt or the like, the durability of the pressure equalizing device such as a pressure vessel, a high pressure pump, a pressure reducing valve or the like may be lowered. However, according to the present invention, the second pressure medium is difficult. It flows out of the barrel, so this problem is not easy to produce.

The embodiments of the present invention and the modifications thereof have been described above, but various modifications can of course be made within the scope of those skilled in the art.

1‧‧‧ Pressure vessel

1b‧‧‧ openings

2‧‧‧Molded frame

3‧‧‧Drainage unit

3a‧‧‧Slots

4‧‧‧High pressure pump unit

5‧‧‧Control panel

6‧‧‧ barrel

7‧‧‧Supply conveyor belt

8‧‧‧Discharge conveyor belt

9‧‧‧Sliding device

10‧‧‧1st cover

10a‧‧‧Little Trails Department

11‧‧‧2nd cover

11a‧‧‧Little Trails Department

11b‧‧‧Great Path Department

12‧‧‧ barrel body

13‧‧‧ Cover

13a‧‧‧ hole

14‧‧‧ Hinges

100‧‧‧ equal pressure pressurizing device

Claims (7)

An equal pressure pressurizing device is a cylindrical pressure vessel having a horizontal portion disposed at both ends in the axial direction and placed horizontally, and applies pressure to a first pressure medium of a liquid placed in the pressure vessel. The object to be treated placed in the pressure vessel is subjected to a pressure treatment, and is characterized in that it includes a barrel having a hole in the upper portion, and the inside of the pressure container is housed in the pressure container, and is placed in the barrel at least In the second pressure medium, the specific gravity of the first pressure medium is smaller than the specific gravity of the workpiece, and the specific gravity of the second pressure medium is equal to or greater than the specific gravity of the first pressure medium. The equalizing pressure pressurizing device according to the first aspect of the invention, wherein the bucket includes a tub body into which the workpiece and the second pressure medium are placed, and an upper portion of the tub body The lid body having the hole further includes a rotating device for rotating the barrel shaft taken out from the pressure vessel. The equal pressure pressurizing apparatus according to claim 1 or 2, wherein the second pressure medium is water containing a salt, and the foregoing is processed Things are food. The equal pressure pressurizing apparatus according to claim 1 or 2, wherein the second pressure medium is water containing a fragrance, and the object to be treated is a food. The equal pressure pressurizing apparatus according to claim 1 or 2, wherein the object to be treated is a shelled food. A pressurization treatment method using an equal pressure pressurization apparatus, which is a pressurization treatment method using a pressure equalization pressurization apparatus according to the first aspect of the patent application, characterized in that: the object to be treated and the first a process of storing a workpiece in which the pressure medium is placed in the tub, and a tub storage process in which the tub in which the workpiece and the second pressure medium are placed are placed in the pressure vessel from the opening, and a pressure treatment process in which the first pressure medium placed in the pressure vessel is pressurized to pressurize the workpiece to be placed in the pressure vessel together with the barrel, and to be placed in the aforementioned The barrel removing process of the barrel of the processed object to be processed from the pressure vessel and the workpiece being taken out from the barrel by the pressurization of the object to be processed are taken out. A pressurization treatment method using an equal pressure pressurizing device is to use an equal pressure pressurizing device as in the second claim of the patent application The pressure processing method includes: a process of storing a workpiece in which the object to be processed and the second pressure medium are placed in the tub, and a method of placing the object to be processed and the second pressure medium a barrel storing process in which the tub is placed in the pressure vessel from the opening portion, and a pressure applied to the first pressure medium placed in the pressure vessel to put the aforementioned cap into the pressure vessel together with the tub a pressurization process of the process pressurization treatment, a barrel take-out process of taking out the tub from which the pressurized processed object is taken out from the pressure vessel, and the processed object to be pressurized a process of taking out the workpiece from the barrel, and rotating the barrel shaft to rotate the barrel upside down during the removal of the workpiece, so that the cover attached to the upper portion of the barrel body through the hinge is re-wound The hinge is rotated around the hinge, and the object to be treated which has been subjected to the pressure treatment is taken out from the barrel.