JP5771443B2 - Superheated steam reactor - Google Patents

Description

  In particular, the present invention sterilizes and sterilizes microorganisms, pests, and the like present on the surface of processed foods such as rice, wheat, and beans, cereals, feeds, etc. by superheated steam, or kills and kills eggs. The present invention relates to a superheated steam reactor that can be stored and transported in a good state and can obtain stable quality foodstuffs, feeds and the like.

  2. Description of the Related Art Conventionally, an apparatus for sterilizing and sterilizing food products using superheated steam is known (see, for example, Patent Document 1). Such a sterilization and sterilization apparatus is provided with a tunnel installed in a transport route for foodstuffs, etc., and injects superheated steam into the tunnel and brings foodstuffs etc. into the tunnel by contact with the superheated steam. However, the food is sterilized and sterilized by passing through the tunnel.

JP 2004-41098 A

However, in the above-described conventional sterilization and sterilization apparatus, food products and the like are sterilized and sterilized in a state of being placed on a conveyor. In contrast, it is difficult to uniformly sterilize and sterilize foodstuffs and the like, and there is a problem that sufficient sterilization and sterilization effects cannot be obtained.
On the other hand, in order to obtain sufficient sterilization and bactericidal effects, when high temperature superheated steam is sprayed over a long period of time and brought into contact with foodstuffs, nutritional components such as foodstuffs, proteins, starch, etc. are altered, deteriorated, There was a possibility of causing the problem of solidification and decomposition.

  Moreover, in the conventional sterilization and sterilization apparatus, since the superheated steam sprayed is left attached to the food product etc., the food product etc. is carried out, so even if the food product is sufficiently sterilized and sterilized, etc. Even so, over time, it may be altered, deteriorated, solidified, decomposed, etc., and cannot be stored or transported in good condition and with stable quality. Had.

  The present invention has been made in view of such a situation, and an object of the present invention is to uniformly and efficiently sterilize and sterilize foodstuffs such as cereals and feeds using superheated steam, or to kill and kill insects. Superheated steam that can be used for egg production and can be stored and transported in good condition by separating the used superheated steam from food, feed, etc. It is to provide a reactor.

In order to solve the above-mentioned problems of the prior art, the present invention is arranged in the superheated steam reactor for sterilizing and sterilizing the workpiece by bringing the superheated steam into contact with the workpiece, along the vertical direction. A reaction pipe line provided with an input part into which the object to be processed is introduced at an upper part and a discharge part for discharging the sterilized and sterilized object to be processed at a lower part, and upper and lower parts of the reaction line. A steam supply means for supplying the superheated steam to the inside of the reaction pipe line, and connected to the discharge part of the reaction pipe, and the superheated steam and the object to be processed inside. A separator provided with a separating guide member, and the separator has a box-shaped casing, and the guide member is disposed inside the casing at a position below the reaction pipe. Department and The guide member is formed in a curved shape that gently protrudes downward by bending a single plate-like body, and the superheated steam that falls vertically is When it hits the curved surface of the guide member, it is configured to change its direction laterally and flow, and the lower end portion of the guide member is bent downward substantially at a right angle, and falls on the curved surface of the guide member. The object to be processed is formed so as to be guided downward, and a side of the casing is provided with a steam discharge port for discharging the superheated steam separated by the guide member. A workpiece discharge port for discharging the workpiece after sterilization and sterilization treatment in which the superheated steam is separated by a guide member is provided .

  Furthermore, in the present invention, the reaction pipe line has a horizontal cross section formed in a circular shape, and the steam supply means has a supply pipe for ejecting the superheated steam into the reaction pipe line, and the supply The tube is disposed obliquely downward so as to intersect the axis of the reaction pipeline.

As described above, the side body structure of the vehicle according to the present invention is arranged along the vertical direction in the superheated steam reactor that sterilizes and sterilizes the workpiece by bringing the superheated steam into contact with the workpiece. A reaction pipe line provided with an input part into which the object to be processed is introduced at an upper part and a discharge part for discharging the sterilized and sterilized object to be processed at a lower part, and upper and lower parts of the reaction line. A steam supply means for supplying the superheated steam to the inside of the reaction pipe line, and connected to the discharge part of the reaction pipe, and the superheated steam and the object to be processed inside. A separator provided with a separating guide member, and the separator has a box-shaped casing, and the guide member is disposed inside the casing at a position below the reaction pipe. Facing the part The guide member is formed obliquely, and is bent into a single plate-like body, so that the entire guide member is formed into a curved shape that gently protrudes downward. The structure is configured such that when it hits the curved surface, the direction is changed to flow laterally, and the lower end portion of the guide member is bent at a substantially right angle downward and falls to hit the curved surface of the guide member. An object is formed so as to be guided downward, and a steam discharge port for discharging the superheated steam separated by the guide member is provided at a side portion of the casing, and a lower portion of the casing is provided by the guide member. An object discharge port for discharging the object to be processed after sterilization and sterilization processing from which the superheated steam is separated is provided .
Therefore, according to the superheated steam reaction device of the present invention, it is possible to apply to foodstuffs such as cereals and processed materials such as feed without deteriorating, degrading, solidifying and decomposing the contained nutrients, proteins, starch, and the like. On the other hand, sterilization and sterilization or insecticidal and ovicidal can be performed uniformly and efficiently. Moreover, since it is possible to quickly and reliably separate the superheated steam used for sterilization and sterilization treatment from foodstuffs, feeds, etc., the foodstuffs, feeds, etc. after sterilization and sterilization treatment are in good condition. It can be stored for a long period of time and can be transported to a desired place, providing a stable quality food product, feed and the like.
In addition, according to the superheated steam reaction apparatus of the present invention, the superheated steam and the food product, feed, etc. after sterilization and sterilization treatment (including insecticidal and ovicidal treatment) can be smoothly separated with a relatively simple structure. This makes it possible to reduce the equipment cost.
Moreover, according to the superheated steam reactor of the present invention, the temperature of the superheated steam obtained by separation is high, so that the superheated steam is recovered and used as a heat source for the steam supply means of this apparatus or as a heat source for other apparatuses. It can be used, and running costs can be reduced.

  Furthermore, in the present invention, the reaction pipe line has a horizontal cross section formed in a circular shape, and the steam supply means has a supply pipe for ejecting the superheated steam into the reaction pipe line, and the supply Since the pipe is arranged obliquely downward so as to intersect with the axis of the reaction pipe, the jetted superheated steam turns into a swirling flow inside the reaction pipe, Sterilization and sterilization (including insecticidal and ovicidal) can be performed with even contact. Moreover, according to the superheated steam reactor of the present invention, the jetted superheated steam does not flow toward the upper part of the reaction pipe, and the charging pipe is not heated by the superheated steam, and the equipment environment is good. In addition, a general hopper can be installed in the charging section as it is, and the equipment cost can be reduced and the processing workability can be improved.

1 is a front view schematically showing a superheated steam reactor according to an embodiment of the present invention while partly in section.

Hereinafter, the present invention will be described in detail based on illustrated embodiments.
FIG. 1 shows the whole superheated steam reactor according to an embodiment of the present invention.

As shown in FIG. 1, the superheated steam reaction apparatus 1 according to the embodiment of the present invention brings the superheated steam (superheated steam, superheated gas steam, etc.) 2 into contact with the work 3 and thereby the surface of the work 3. Sterilization and sterilization treatment of microorganisms and pests, etc., or insecticidal and ovicidal treatment.
The superheated steam reactor 1 of the present embodiment is mainly composed of a reaction pipe 4 arranged along the vertical direction, a steam supply means 5 provided in an intermediate part of the reaction pipe 4 in the vertical direction, and a reaction pipe 4. And a separator 6 provided with a guide member to be described later for separating the superheated steam 2 and the workpiece 3 from each other. In addition, the superheated steam 2 used by this embodiment is obtained by further adding and heating a steam, and is a steam whose temperature is 600-700 degreeC, for example. Moreover, as the to-be-processed object 3 to be sterilized and sterilized (including insecticidal and egg-killing), foods including cereals such as rice, wheat and beans, feeds and the like can be mentioned.

  The reaction pipe line 4 of the present embodiment is a cylindrical pipe having a horizontal cross section formed in a circular shape, and is configured such that a reaction process between the superheated steam 2 and the workpiece 3 is performed inside. Such a reaction pipe line 4 is installed on the frame 7 by mounting a lower flange 4a on an upper part of a frame 7 of a rigid member assembled in a rectangular parallelepiped shape and fixing it by bolting. In addition, the diameter and the length in the vertical direction of the reaction pipe line 4 are set according to the reaction time required for sterilization and sterilization treatment of the workpiece 3, and the linear outer periphery is heated. It is covered with heat insulating material so as not to escape to the surroundings.

An input portion 8 such as a hopper for supplying the object to be processed 3 is provided in the upper part of the reaction pipe line 4, and the object to be processed 3 is conveyed to the input portion 8 from a storage, a transport vehicle, etc., not shown. A transport duct (not shown) and the like to be dropped are connected. Or the input part 8 may be comprised so that the to-be-processed object 3 may be dropped directly. A hopper or the like installed in the charging unit 8 is not covered with a heat insulating material or the like, and is attached as it is.
In addition, the lower part of the reaction pipe 4 is provided with a discharge unit 9 for discharging the object to be processed 3 that has been sterilized and sterilized (including insecticidal and egg-killing) by the superheated steam 2 during the fall. The superheated steam 2 and the workpiece 3 are discharged together from the discharge unit 9.

As shown in FIG. 1, the steam supply means 5 of the present embodiment is provided at an intermediate portion in the vertical direction of the reaction pipe 4 and is configured to supply superheated steam 2 into the reaction pipe 4. . For this reason, the steam supply means 5 has a supply pipe 10 for ejecting the superheated steam 2 inside the reaction pipe 4, and the tip of the supply pipe 10 is to communicate with the inside of the reaction pipe 4. It is connected. The other end of the supply pipe 10 is connected to a steam supply source 12 such as a boiler via a steam line 11.
Further, the supply pipe 10 is disposed obliquely downward so as to intersect with the axis of the reaction pipe line 4, whereby the superheated steam 2 ejected from the tip portion is caused to react with the reaction pipe line 4. The superheated steam 2 is configured to be in a swirl flow inside the, and the superheated steam 2 is more evenly in contact with the workpiece 3 being dropped. In addition, such an inclined arrangement of the supply pipe 10 is combined with the fact that the reaction pipe 4 is formed in a circular shape in the horizontal section, and the superheated steam 2 rises toward the charging section 8 of the reaction pipe 4. It has a function to prevent it.

And the separator 6 of this embodiment is attached to the upper lower surface of the flame | frame 7 as shown in FIG. 1, and has the box-shaped casing 13 in which the inside is connected with the discharge part 9 of the reaction pipe line 4, A guide member 14 having a function of separating the superheated steam 2 and the workpiece 3 is provided inside the casing 13. The guide member 14 is positioned below the reaction pipe 4 and is opposed to the discharge portion 9 and is disposed obliquely from the upper part to the lower part in a state of being spaced from the bottom surface. Therefore, the guide member 14 is formed into a curved shape that gently protrudes downward by bending one plate-like body, and the superheated steam 2 that falls vertically is generated by the guide member 14. When it hits the curved surface, it is configured to change its direction to flow sideways.
In addition, the lower end portion 14a of the guide member 14 is bent at a substantially right angle downward, and is formed so that the workpiece 3 that has fallen against the curved surface of the guide member 14 is guided to a discharge port described later. Yes.

  On the other hand, as shown in FIG. 1, a steam discharge port 15 for discharging the superheated steam 2 separated by the guide member 14 to the outside is provided on the side portion of the casing 13 of the present embodiment. Since the temperature of the superheated steam 2 discharged from the steam discharge port 15 is as high as about 400 ° C. even after sterilization and sterilization processing of the workpiece 3, the steam discharge port 15 is connected to the recovery line 16. The superheated steam 2 discharged from the steam supply source 12 is reused. Note that the superheated steam 2 is not only reused as a heat source of the steam supply source 12, but may be used as a heat source of another device.

  In addition, on one side of the bottom bottom portion of the casing 13, there is provided an object discharge port 17 for discharging the object 3 to be processed after sterilization and sterilization treatment in which the superheated steam 2 is separated by hitting the guide member 14. A discharge pipe 18 projecting outward is connected to the workpiece discharge port 17, and the dropped article 3 after the sterilization and sterilization treatment has been dropped below the discharge pipe 18. A belt conveyor 19 is installed for transporting the vehicle to a storage, a transport vehicle, etc., not shown.

Next, a method for sterilizing and sterilizing the workpiece 3 using the superheated steam reactor 1 according to the embodiment of the present invention will be described.
First, the steam supply means 5 is driven to deliver the high-temperature superheated steam 2 from the steam supply source 12, and the superheated steam 2 is ejected from the supply pipe 10 through the steam pipe 11 into the reaction pipe 4 and supplied. . In this state, a predetermined amount of the object to be processed 3 is conveyed from a storage, a transport vehicle, etc., not shown, and dropped into the charging unit 8 at the top of the reaction pipe 4. The dropped processing object 3 comes into contact with the swirling superheated steam 2 supplied while dropping inside the reaction pipe 4. At this time, microorganisms, pests, and the like present on the surface of the workpiece 3 are sterilized and sterilized by the high-temperature superheated steam 2 and are removed from the workpiece 3.

Subsequently, the to-be-processed object 3 to which the superheated steam 2 adheres is discharged | emitted from the discharge part 9 of the lower part of the reaction pipe line 4, and falls to the inside of the separator 6 located below and communicating. And the superheated steam 2 and the to-be-processed object 3 which fell in the separator 6 contact | abut the curved surface of the guide member 14 provided in inclination, and will be isolate | separated from each other by a mass difference, an impact force, etc. That is, of the superheated steam 2 and the object to be processed 3 that have hit the guide member 14, the superheated steam 2 is changed in the horizontal direction by the guide member 14 and flows toward the steam discharge port 15. The superheated steam 2 that has reached the steam outlet 15 returns to the steam supply source 12 via the recovery pipe 16 and is reused as a heat source.
On the other hand, the workpiece 3 after sterilization and sterilization is dropped while moving along the curved surface of the guide member 14, guided to the workpiece discharge port 17 by the lower end portion 14 a, and the belt conveyor 19 through the discharge pipe 18. Will be discharged to the top. Thereafter, the article 3 to be processed after sterilization and sterilization processing is transported to a storage and a transport vehicle outside the drawing by the belt conveyor 19, and the sterilization and sterilization processing operations are completed.

As described above, in the superheated steam reactor 1 according to the embodiment of the present invention, the reaction pipe line 4 through which the superheated steam 2 is jetted from the supply pipe 10 of the steam supply means 5 is arranged along the vertical direction. Since the separator 6 having the guide member 14 against which the superheated steam 2 after sterilization and sterilization treatment and the object to be treated 3 are connected is connected to the discharge portion 9 of the reaction pipe 4, the superheated steam 2 is in uniform contact with it. Thus, the surface of the workpiece 3 can be sterilized and sterilized uniformly and efficiently. Moreover, in the superheated steam reactor 1 of the present embodiment, the superheated steam 2 used for the sterilization and sterilization treatment can be reliably separated from the workpiece 3 by the guide member 14. The to-be-processed object 3 after the sterilization treatment can be quickly discharged from the discharge port 17 and the discharge pipe 18 of the separator 6.
Therefore, if the to-be-processed object 3 is sterilized and sterilized using the superheated steam reaction apparatus 1 of this embodiment, while being able to provide the foodstuffs, feed, etc. which were excellent in quality, the quality is stable in a favorable state. Food products, feeds, etc. can be stored for a long time.

In the superheated steam reactor 1 of the present embodiment, the high-temperature superheated steam 2 is recovered from the steam discharge port 15 provided on the side of the casing 13 of the separator 6 and reused as a heat source for the steam supply source 12. Therefore, energy efficiency can be improved and costs can be reduced.
Furthermore, in the superheated steam reactor 1 of the present embodiment, the horizontal cross section of the reaction pipe line 4 is formed in a circular shape, and the supply pipe 10 is inclined obliquely downward so as to intersect the axis of the reaction pipe line 4. Therefore, the jetted superheated steam 2 becomes a swirling flow inside the reaction pipe 4 and can be brought into contact with the charged workpiece 3 evenly. Sterilization and sterilization can be performed even more uniformly.

  In addition, in the superheated steam reactor 1 of the present embodiment, the spouted superheated steam 2 does not flow toward the upper part of the reaction pipe 4, so that the charging section 8 of the reaction pipe 4 is heated by the superheated steam 2. The phenomenon of being hot and not happening. Therefore, it is not necessary to cover the outer periphery of the charging unit 8 with a heat insulating material or the like, and it becomes possible to install a general hopper as it is, to realize a reduction in equipment cost and to provide a good equipment environment. be able to.

While the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical idea of the present invention.
For example, in the above-described embodiment, one supply pipe 10 for jetting the superheated steam 2 is provided in the middle part of the reaction pipe 4 in the vertical direction. Two or more supply pipes 10 may be arranged so as to intersect each other with an interval in the vertical direction by further providing separate supply pipes 10 according to the amount of the object 3 to be processed. The added supply pipe 10 may be connected to the same steam supply source 12 or may be connected to a separate steam supply source.

DESCRIPTION OF SYMBOLS 1 Superheated steam reaction apparatus 2 Superheated steam 3 Processed object 4 Reaction pipe line 5 Steam supply means 6 Separator 7 Frame 8 Input part 9 Discharge part 10 Supply pipe 11 Steam pipe 12 Steam supply source 13 Casing 14 Guide member 15 Steam outlet 17 Workpiece discharge port 18 Drain pipe

Claims (2)

In the superheated steam reactor for sterilizing and sterilizing the object to be treated by bringing the object to be treated with superheated steam,
A reaction pipe line arranged along the vertical direction, provided with an input part into which the object to be processed is input at the top, and provided with a discharge part for discharging the sterilized and sterilized object at the bottom;
A steam supply means provided at an intermediate portion in the vertical direction of the reaction pipe, and for supplying the superheated steam to the inside of the reaction pipe;
A separator that is connected to the discharge portion of the reaction pipe line and that is provided with a guide member that separates the superheated steam and the object to be processed;
Equipped with a,
The separator has a box-shaped casing, and the guide member is disposed obliquely facing the discharge part at a position below the reaction pipe in the casing. By bending one plate-like body, the whole is formed into a curved shape that gently protrudes downward, and when the superheated steam that falls vertically hits the curved surface of the guide member, the direction is changed sideways. The lower end portion of the guide member is bent substantially at a right angle downward, and is formed so that the object to be processed that has fallen against the curved surface of the guide member is guided downward. ,
A sterilization and sterilization process in which a steam outlet for discharging the superheated steam separated by the guide member is provided in a side portion of the casing, and the superheated steam is separated by the guide member in a lower portion of the casing. A superheated steam reactor characterized in that a workpiece discharge port for discharging the workpiece to be processed later is provided . The reaction pipe has a circular horizontal cross section, and the steam supply means has a supply pipe for injecting the superheated steam into the reaction pipe, and the supply pipe is the reaction pipe. The superheated steam reactor according to claim 1, wherein the superheated steam reactor is disposed obliquely downward so as to intersect with the axis of the road .

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