JPS5934311Y2 - Continuous pressurized microwave heating device - Google Patents
Continuous pressurized microwave heating deviceInfo
- Publication number
- JPS5934311Y2 JPS5934311Y2 JP1979125384U JP12538479U JPS5934311Y2 JP S5934311 Y2 JPS5934311 Y2 JP S5934311Y2 JP 1979125384 U JP1979125384 U JP 1979125384U JP 12538479 U JP12538479 U JP 12538479U JP S5934311 Y2 JPS5934311 Y2 JP S5934311Y2
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- heated
- belt conveyor
- container
- microwave irradiation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- General Preparation And Processing Of Foods (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Constitution Of High-Frequency Heating (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Description
【考案の詳細な説明】
本考案は容器内に密封包装された食品又は薬品等の被加
熱物を高気圧下でしかも連続的に加熱処理するマイクロ
波加熱装置に関するものである。[Detailed Description of the Invention] The present invention relates to a microwave heating device that continuously heats an object to be heated, such as food or medicine, sealed and packaged in a container under high pressure.
容器内に密封包装された内容物を加熱処理することは従
来よりよく行なわれており、例えば熱水蒸気等による食
品又は薬品の殺菌がよく知られている。BACKGROUND ART It has been common practice to heat-treat the contents sealed in a container, and for example, sterilization of foods or medicines using hot steam is well known.
ところが、上記加熱手段は外部加熱方式といわれ、熱が
容器の外部から供給されるため被加熱物の中心温度が上
昇するまで長時間を要し、品質が劣化するという欠点が
あり、例えばある種のプラスチック製容器に密封された
食品の場合、120℃の熱水中に1時間近く浸漬しなけ
ればならなかった。However, the heating means described above is called an external heating method, and since heat is supplied from outside the container, it takes a long time to raise the center temperature of the object to be heated, which has the disadvantage of deteriorating quality. Food sealed in plastic containers had to be soaked in hot water at 120°C for nearly an hour.
そこで、最近マイクロ波を利用した加熱処理方法が利用
されるようになってきたが、マイクロ波による加熱は内
部加熱方式といわれ、急速加熱のため加熱に要する時間
は著しく減少され、工程短縮上非常に有利となる。Therefore, heat treatment methods using microwaves have recently come into use, but heating with microwaves is called an internal heating method, and due to rapid heating, the time required for heating is significantly reduced, which is extremely useful for shortening the process. be advantageous to
ところが内容物が急激に温度上昇するため、容器内の飽
和蒸気圧が突然増大し、容器の破損を招きやすい。However, because the temperature of the contents rises rapidly, the saturated vapor pressure inside the container suddenly increases, which tends to cause damage to the container.
この場合密封容器の外部より高い圧力をかければ破袋は
防止できる。In this case, bag breakage can be prevented by applying higher pressure from the outside of the sealed container.
包装体内に密封した食品類をマイクロ波を用い加熱状態
のよ・殺菌処理する装置は特開昭53−119183号
、特公昭51=12133号等がある。Apparatuses for heating and sterilizing foods sealed in packages using microwaves are disclosed in Japanese Patent Application Laid-open No. 53-119183 and Japanese Patent Publication No. 51-12133.
ところが、特開昭53−119183号の装置の場合は
バッチ式であり作業能率が良くない。However, the apparatus disclosed in Japanese Patent Application Laid-Open No. 53-119183 is of a batch type and does not have good working efficiency.
又、1度に多量の包装食品を処理すれば能率も比較的ア
ップ出来るが、レトルト方式の様に包装食品を密に詰め
込むとマイクロ波は食品に吸収されやすいので中央部分
に置かれた食品までマイクロ波が到達できず温められな
いという現象がでてくる。Also, efficiency can be relatively improved if a large amount of packaged food is processed at one time, but if the packaged food is packed tightly together as in the retort method, the microwaves are easily absorbed by the food, so even the food placed in the center can be A phenomenon occurs where microwaves cannot reach the food and it cannot be heated.
従ってマイクロ波を均一にあてるためにはかなりマイク
ロ波の通り路をあけねばならず、処理能力が低いと共に
加熱ムラが起きやすい。Therefore, in order to apply microwaves uniformly, it is necessary to open a considerable passage for the microwaves, resulting in low processing capacity and a tendency to cause uneven heating.
又、マイクロ波は内部加熱であり、食品が急速に加熱さ
れるが包装容器は通常マイクロ波を吸収しない物質を用
いるので容器はあた・められず、又釜内空気が温められ
ないので容器からの放熱が大きく、中心部が所定の温度
になるまで余分なエネルギーと時間を要する。In addition, microwaves are internal heating, and the food is heated rapidly, but packaging containers are usually made of materials that do not absorb microwaves, so the container cannot be heated, and the air inside the pot cannot be heated, so the container cannot be heated. The heat dissipated from the core is large, and it takes extra energy and time for the center to reach the desired temperature.
又、特公昭51−12133号の装置は連続式であるが
加熱室と冷却室の隔絶が不完全で透孔から漏洩したマイ
クロ波により冷却水が温められてしまい、冷却効率が悪
くオーバータックになりやすい。In addition, although the device disclosed in Japanese Patent Publication No. 51-12133 is a continuous type, the heating chamber and cooling chamber are not completely isolated, and the cooling water is heated by the microwaves leaking through the holes, resulting in poor cooling efficiency and overtack. Prone.
上記方式はロータリーパルプを用いているが、横に渡し
た回転体の収納凹部に包装体を入れ、回転体の回転によ
り前記凹部がら包装体を重力により取り出す方式のため
コンベア上に落された包装体はピンホールがあいたり、
中の食品がくずれて商品価値がなくなる場合が多かった
。The above method uses rotary pulp, but the packaging is placed in the storage recess of a rotating body passed horizontally, and the packaging is taken out from the recess by gravity as the rotating body rotates, so the packaging is dropped onto the conveyor. There are pinholes in the body,
In many cases, the food inside collapsed and lost its commercial value.
本考案は上記の点に鑑みてなされたもので、マイクロ波
加圧空気の漏洩なしに被加熱物を連続的に処理すること
を目的とするものである。The present invention has been made in view of the above points, and its purpose is to continuously process an object to be heated without leaking microwave-pressurized air.
この目的を遠戚するため本案は、密封容器人波加熱物を
搬入するベルトコンベアを内設した搬入室と、該搬入室
から被加熱物を受は継ぐベルトコンベアを内設し、マイ
クロ波照射装置、蒸気導入管、シースヒーターを設けた
マイクロ波照射室と、該マイクロ波照射室から被加熱物
を受は継ぎ水槽中を通るベルトコンベアを内設した冷却
室と、該冷却室から被加熱物を受は継ぐベルトコンベア
を内設し、乾燥用ヒーターを設けた乾燥室とを具えこれ
ら凹室に加圧空気導入管を設けるとともに、各室を各々
シャッターで開閉自在とした加圧連続式マイクロ波加熱
装置を横取した。In order to achieve this goal, the present proposal includes an inlet chamber with a belt conveyor for carrying in sealed containers for human wave heating, and a belt conveyor to receive and transfer the heated articles from the inlet chamber, and microwave irradiation. A microwave irradiation chamber equipped with a device, a steam introduction pipe, and a sheath heater; a cooling chamber equipped with a belt conveyor that receives the heated object from the microwave irradiation chamber and passes through a water tank; Continuous pressurization type, equipped with a belt conveyor for receiving items, a drying chamber equipped with a drying heater, pressurized air introduction pipes installed in these concave chambers, and each chamber can be opened and closed with a shutter. A microwave heating device was stolen.
以下本考案の一実施例を第1図を参照して説明する。An embodiment of the present invention will be described below with reference to FIG.
本考案加圧連続式マイクロ波加熱装置10は密封容器人
波加熱物搬入室11.マイクロ波照射室12、冷却室1
3、そして乾燥室である搬出室14が各々シャッター1
6.17.18を介して連設されており、搬入室11の
搬入口11aと搬出室14の搬出口14aは各々シャッ
ター15.19により開閉自在となっている。The pressurized continuous microwave heating device 10 of the present invention has a sealed container 11. Microwave irradiation chamber 12, cooling chamber 1
3, and the unloading room 14, which is a drying room, each has a shutter 1.
6, 17, and 18, and the loading port 11a of the loading chamber 11 and the loading port 14a of the loading chamber 14 can be opened and closed by shutters 15.19, respectively.
2等凹室は各々加圧用パイプすなわち加圧空気導入管2
0を通じて図示はしていないが、ニアコンプレッサーに
連通してお・り各々連続するベルトコンベア21が内設
されている。Each of the second concave chambers has a pressurizing pipe, that is, a pressurized air introduction pipe 2.
Although not shown in the drawings, a continuous belt conveyor 21 is installed therein, communicating with the near compressor.
搬入室11にはシースヒータ24aが設けられており、
室内を加熱し被加熱物を特にその容器を予熱するように
なっている。A sheath heater 24a is provided in the loading chamber 11,
It heats the room and preheats the object to be heated, especially the container.
マイクロ波照射室12の天板12aには蒸気導入口22
、スタラファン23、シースヒータ−24b1赤外温度
計25、及び導波管26を介してマイクロ波発振器27
が取りつけられており、導波管26のフランジ26aは
マイクロ波は通すが空気は通さない性質の材料、例えば
テフロン等により形成されている。A steam inlet 22 is provided on the top plate 12a of the microwave irradiation chamber 12.
, a star fan 23, a sheath heater 24b1, an infrared thermometer 25, and a microwave oscillator 27 via a waveguide 26.
The flange 26a of the waveguide 26 is made of a material that allows microwaves to pass through but does not allow air to pass through, such as Teflon.
赤外温度計25はコントローラー28を介してマイクロ
波発振器27に電気的に連通している。Infrared thermometer 25 is electrically connected to microwave oscillator 27 via controller 28 .
冷却室13には水槽29が内設されていて、その冷却水
30中にベルトコンベア21c、 21d、 21eが
設置されている。A water tank 29 is installed inside the cooling chamber 13, and belt conveyors 21c, 21d, and 21e are installed in the cooling water 30.
搬出室14には乾燥装置としてシースヒーター24Cが
設けられ、容器に付着した冷却水が乾燥せしめられる。A sheath heater 24C is provided as a drying device in the unloading chamber 14, and the cooling water adhering to the container is dried.
乾燥を促進するべく他にファン(図示せず)を設けても
よい。An additional fan (not shown) may be provided to facilitate drying.
又、シャッター15.16.17.18.19は各々エ
アシリンダー31によりそのロッド32に連結された押
圧板33が上下動することにより開閉されるものであり
、密閉板34の下縁が機枠35の上縁に当接した後更に
押圧板33が多少下降することにより、レバー36が密
封板34を機枠38の開口部37に押し付けるように作
用し、第2図に示す圧力用シール39とマイクロ波用シ
ール40にて両者の漏洩が完全に防止されるようになっ
ている。Further, the shutters 15, 16, 17, 18, and 19 are opened and closed by the vertical movement of a pressing plate 33 connected to a rod 32 by an air cylinder 31, and the lower edge of the sealing plate 34 is connected to the machine frame. After contacting the upper edge of the press plate 35, the press plate 33 further descends a little, so that the lever 36 acts to press the seal plate 34 against the opening 37 of the machine frame 38, and the pressure seal 39 shown in FIG. The microwave seal 40 completely prevents leakage of both.
さて以上の如く横取した本考案装置で加熱処理を行なう
工程は次のようになる。Now, the process of performing heat treatment using the apparatus of the present invention which has been stolen as described above is as follows.
先ず、搬入室11の人口シャッター15を開け、被加熱
物Aを搬入した後シャッター15を閉め、シースヒータ
ー24aで被加熱物Aを予熱し、加圧用パイプ20を通
じてコンプレッサーにより導入される圧縮空気にて室内
圧力を上昇し、被加熱物の加熱時にお・ける容器の破損
が起きないように予め高気圧に保たれているマイクロ波
照射室12と同圧となったところでシャッター16を開
は被加熱物をマイクロ波照射室12に移送する。First, the artificial shutter 15 of the loading chamber 11 is opened, and after carrying in the object to be heated A, the shutter 15 is closed, the object to be heated A is preheated by the sheath heater 24a, and the compressed air introduced by the compressor through the pressure pipe 20 is The shutter 16 is opened when the pressure reaches the same level as the microwave irradiation chamber 12, which is kept at a high pressure in advance to prevent damage to the container during heating of the heated object. The object is transferred to the microwave irradiation chamber 12.
シャッター16を閉め、搬入室11とマイクロ波照射室
12を隔絶した後マイクロ波発振器27から導波管26
を通じマイクロ波を放射し、被加熱物を加熱すること・
なるが、スタラファン23によってマイクロ波を攪拌し
放射を均一化することで被加熱物の加熱むらをなくして
いる。After closing the shutter 16 and isolating the loading chamber 11 and the microwave irradiation chamber 12, the microwave oscillator 27 is connected to the waveguide 26.
radiating microwaves to heat objects through
However, by stirring the microwaves using the stirrer fan 23 and making the radiation uniform, uneven heating of the object to be heated is eliminated.
更に密封容器の材質により密封容器表面からの放熱が大
きく、被加熱物が所定の温度まで上昇するのに多くの時
間を要する場合には、蒸気を導入口22から導入し、シ
ースヒーター24bを使用することにより容器表面から
の放熱を防止し、容器を外部から加熱しそれだけマイク
ロ波による加熱時間を短縮することができる。Furthermore, if the heat dissipation from the surface of the sealed container is large depending on the material of the sealed container and it takes a long time for the object to be heated to reach a predetermined temperature, steam may be introduced from the inlet 22 and the sheath heater 24b may be used. By doing so, it is possible to prevent heat radiation from the surface of the container, heat the container from the outside, and shorten the heating time using microwaves accordingly.
又例えばレトルト食品の場合、120℃で4分間以上の
加熱で殺菌効果が得られるが被加熱物の温度を赤外温度
計25が感知し、これと連結されたコントローラー28
が発振器27を制御することにより被加熱物の温度は常
に一定に保つことができる。For example, in the case of retort food, the sterilization effect can be obtained by heating it at 120°C for 4 minutes or more.
By controlling the oscillator 27, the temperature of the heated object can be kept constant.
以上のようにして一定時間マイクロ波の照射を行った後
冷却室13のシャッター17を開け、被加熱物Aはコン
ベア21c、 21d、 21eにより水槽30中を通
り冷却されるわけであるが、冷却室13はその天板に設
けられた加圧用パイプ20からの圧縮空気により、室内
気圧がマイクロ波照射室12のそれと同圧に保たれてい
るので、マイクロ波照射室12から移送されてくる被加
熱物の容器がその内圧により破損することはない。After irradiating microwaves for a certain period of time as described above, the shutter 17 of the cooling chamber 13 is opened, and the object to be heated A passes through the water tank 30 by the conveyors 21c, 21d, and 21e and is cooled. The chamber 13 is maintained at the same pressure as the microwave irradiation chamber 12 by compressed air from a pressurizing pipe 20 installed on its top plate, so that the air pressure transferred from the microwave irradiation chamber 12 is The container containing the heated material will not be damaged by its internal pressure.
次にここで冷却され容器の破損や変形の恐れのなくなつ
、た被加熱物Aはシャッター18を開くことにより搬出
室14に移送されシースヒーター24cの放熱により乾
燥が行なわれ、シャッター19が開かれて装置外へ搬出
される。Next, the object to be heated A, which has been cooled here so that there is no risk of damage or deformation of the container, is transferred to the unloading chamber 14 by opening the shutter 18, where it is dried by heat dissipation from the sheath heater 24c, and then the shutter 19 is opened. and transported out of the equipment.
以上説明した如く、本考案加圧連続式マイクロ波加熱装
置は、被加熱物容器の材質に影響されることなく蒸気に
よって放熱を防止し常に短時間で確実に被加熱物を各室
の各々シャッターを交互に開閉することで連続的に熱処
理をすることが出来、そして冷却水はマイクロ波から完
全に隔絶されるものであるから冷却効率が良く、被加熱
物がオーバータックになることがなく、しかも本搬送装
置は全く容器に衝撃を与えるものではないから容器にピ
ンホールが生じないという特徴を有するものである。As explained above, the pressurized continuous microwave heating device of the present invention prevents heat dissipation by steam without being affected by the material of the container for the heated object, and constantly and reliably heats the heated object in a short time in each chamber. By alternately opening and closing, heat treatment can be performed continuously, and since the cooling water is completely isolated from microwaves, cooling efficiency is high, and the heated object will not be overtucked. Moreover, this conveying device does not apply any impact to the containers, so it has the characteristic that no pinholes are created in the containers.
第1図は本考案装置の概略図、第2図は開口壁の拡大断
面図である。
10・・・・・・本考案加圧連続式マイクロ波加熱装置
、11・・・・・・搬入室、12・・・・・・マイクロ
波照射室、13・・・・・・冷却室、14・・・・・・
搬出室、15.16.17.18.19・・・・・・シ
ャッター、20・・・・・・加圧用パイプ、21・・・
・・・ベルトコンベア、22・・・・・・蒸気導入口、
23・・・・・・スタラファン、24・・・・・・シー
スヒーター、25・・・・・・赤外温度計、26・・・
・・・導波管、27・・・・・・マイクロ波発振器、2
8・・・・・・コントローラー、29・・・・・・水槽
、30・・・・・・冷却水、31・・・・・・エアシリ
ンダー、32・・・・・・ロッド、33・・・・・・押
圧板、34・・・・・・密閉板、35・・・・・・機枠
、36・・・・・・レバー、37・・・・・・開口壁、
38・・・・・・機枠、39・・・・・・圧力用シール
40・・・・・・マイクロ波用シール。FIG. 1 is a schematic diagram of the device of the present invention, and FIG. 2 is an enlarged sectional view of the opening wall. 10...Pressure continuous microwave heating device of the present invention, 11... Loading chamber, 12... Microwave irradiation chamber, 13... Cooling chamber, 14...
Carrying out room, 15.16.17.18.19... Shutter, 20... Pressurizing pipe, 21...
... Belt conveyor, 22 ... Steam inlet,
23... Stara fan, 24... Sheath heater, 25... Infrared thermometer, 26...
... Waveguide, 27 ... Microwave oscillator, 2
8... Controller, 29... Water tank, 30... Cooling water, 31... Air cylinder, 32... Rod, 33... ... Pressing plate, 34 ... Sealing plate, 35 ... Machine frame, 36 ... Lever, 37 ... Opening wall,
38...Machine frame, 39...Pressure seal 40...Microwave seal.
Claims (1)
た搬入室と、該搬入室から被加熱物を受は継ぐベルトコ
ンベアを内設し、マイクロ波照射装置、蒸気導入管、シ
ースヒーターを設けたマイクロ波照射室と、該マイクロ
波照射室から被加熱物を受は継ぎ水槽中を通るベルトコ
ンベアを内設した冷却室と、該冷却室から被加熱物を受
は継ぐベルトコンベアを内設し、乾燥用ヒーターを設け
た乾燥室とを具え、これら凹室に加圧空気導入管を設け
るとともに、各室を各々シャッターで開閉自在とした加
圧連続式マイクロ波加熱装置。A sealed container is equipped with a loading chamber equipped with a belt conveyor for carrying in human-wave heated materials, a belt conveyor that receives and connects the heated materials from the loading chamber, and equipped with a microwave irradiation device, a steam introduction pipe, and a sheath heater. A cooling chamber is equipped with a belt conveyor that passes through a water tank to receive and transfer objects to be heated from the microwave irradiation chamber, and a belt conveyor that receives and transfers objects to be heated from the cooling chamber. and a drying chamber equipped with a drying heater, pressurized air introduction pipes are provided in these concave chambers, and each chamber can be opened and closed with a shutter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1979125384U JPS5934311Y2 (en) | 1979-09-11 | 1979-09-11 | Continuous pressurized microwave heating device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1979125384U JPS5934311Y2 (en) | 1979-09-11 | 1979-09-11 | Continuous pressurized microwave heating device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5641592U JPS5641592U (en) | 1981-04-16 |
JPS5934311Y2 true JPS5934311Y2 (en) | 1984-09-22 |
Family
ID=29357276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1979125384U Expired JPS5934311Y2 (en) | 1979-09-11 | 1979-09-11 | Continuous pressurized microwave heating device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5934311Y2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0333575U (en) * | 1989-08-09 | 1991-04-02 | ||
JP5187715B2 (en) * | 2006-12-04 | 2013-04-24 | 大和製罐株式会社 | Heat sterilization method for products in containers |
-
1979
- 1979-09-11 JP JP1979125384U patent/JPS5934311Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5641592U (en) | 1981-04-16 |
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