JP2992868B2 - Drying system for the object to be dried - Google Patents
Drying system for the object to be driedInfo
- Publication number
- JP2992868B2 JP2992868B2 JP6262983A JP26298394A JP2992868B2 JP 2992868 B2 JP2992868 B2 JP 2992868B2 JP 6262983 A JP6262983 A JP 6262983A JP 26298394 A JP26298394 A JP 26298394A JP 2992868 B2 JP2992868 B2 JP 2992868B2
- Authority
- JP
- Japan
- Prior art keywords
- dried
- drying
- air
- drying chamber
- supply means
- 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 - Fee Related
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- Drying Of Solid Materials (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明は被乾燥体の乾燥システム
に関し、詳しくは海産物等を効率的に乾燥させることの
できる被乾燥体の乾燥システムに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drying system for a material to be dried, and more particularly to a drying system for a material to be dried which can efficiently dry marine products and the like.
【０００２】[0002]
【従来の技術】従来からアジ、サバなどを始めとして、
各種の海産物から長期間、保存がきき、しかも独特の風
味を兼ね備えた干物が製造され、市場に提供されてい
る。2. Description of the Related Art Conventionally, such as horse mackerel and mackerel,
Dried fish that can be stored for a long period of time and have a unique flavor are produced from various marine products, and are offered to the market.
【０００３】このような従来の干物等の乾燥システムで
は、図６に示したように、被乾燥体１が収納された乾燥
室２の側方にボイラー等の加熱手段３を配置し、この加
熱手段３から発生させた熱風あるいは温風を、乾燥室２
内に送出させる一方、この乾燥室２内の空気を冷却室４
内に導入し、該冷却室４内で乾燥室２から導いた空気を
冷却および徐湿し、この徐湿処理された空気を、再度加
熱手段３に通して乾燥室２内に送出している。また、前
記冷却室４内で徐湿処理された一部の空気はそのまま乾
燥室２内に送出している。すなわち、従来のシステムで
は、空気を循環させて干物を製造するようにしていた。In such a conventional drying system for drying dried goods, as shown in FIG. 6, a heating means 3 such as a boiler is arranged beside a drying chamber 2 in which a body 1 to be dried is stored. The hot air or warm air generated from the means 3 is supplied to the drying chamber 2
While the air in the drying chamber 2 is
The air introduced from the drying chamber 2 is cooled and gradually humidified in the cooling chamber 4, and the air subjected to the gradual humidity treatment is sent out again into the drying chamber 2 through the heating means 3. . Further, a part of the air subjected to the gradual humidity treatment in the cooling chamber 4 is sent to the drying chamber 2 as it is. That is, in the conventional system, the dried air is manufactured by circulating the air.
【０００４】[0004]
【発明が解決しようとする課題】ところで、このような
従来の被乾燥体の乾燥システムでは、加熱室３から供給
される温風等で乾燥室２内の温度を上昇させ、この熱で
被乾燥体１の表面から水分を乾燥させるので、乾燥の始
めから製品を得るまでの間に多数の日数がかかるととも
に、加熱された空気を冷却するためのエネルギーが必要
になる。したがって、例え新鮮な海産物から干物を製造
した場合であっても、干物を製造する過程で被乾燥体が
酸化してしまい、鮮度が落ちてしまうという問題もあっ
た。By the way, in such a conventional drying system for the object to be dried, the temperature in the drying chamber 2 is raised by hot air or the like supplied from the heating chamber 3 and the heat is applied to the object to be dried. Since the moisture is dried from the surface of the body 1, it takes many days from the beginning of drying to obtain the product, and energy is required to cool the heated air. Therefore, even when dried fish is produced from fresh marine products, there is a problem that the object to be dried is oxidized in the process of producing the dried fish, and the freshness is reduced.
【０００５】しかも、従来の乾燥システムでは、加熱手
段として重油あるいはガスを用いた熱発生源と冷却用の
電源が必要になるため、乾燥に要する費用が高く、コス
ト高になる問題があった。In addition, the conventional drying system requires a heat generating source using heavy oil or gas as a heating means and a power supply for cooling, so that the cost required for drying is high and the cost is high.
【０００６】本発明は上記実情に鑑み、短時間で被乾燥
体を製造することができ、しかも乾燥するにあたり安価
で製造することができ、さらには新鮮な風味を損なうこ
となく被乾燥体を製造することができる被乾燥体の乾燥
システムを提供することを目的としている。In view of the above-mentioned circumstances, the present invention can produce a dried object in a short time, can produce it at a low cost when drying, and can produce a dried object without impairing fresh flavor. It is an object of the present invention to provide a drying system for an object to be dried.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
の本発明に係る被乾燥体の乾燥システムでは、被乾燥体
が収納された乾燥室の天井を含む壁面に遠赤外線ヒータ
を配設し、この遠赤外線ヒータからの熱により前記乾燥
室内を平均加熱するとともに、前記乾燥室内に連通する
給気手段と排気手段とを配設し、前記給気手段により前
記乾燥室内に外部の空気を導入する一方、前記排気手段
により前記乾燥室内の空気を前記給気手段による給気よ
り大幅に多く排出して前記乾燥室内の圧力を常時減圧状
態に維持し、さらに前記乾燥室内の温度を温度センサで
検知し、この温度センサで検知された検知温度に基づい
て前記遠赤外線ヒータの強度を調整するとともに、前記
給気手段による吸引風量および前記排気手段による排気
風量とを別々に制御するようにしたことを特徴としてい
る。According to the present invention, there is provided a drying system for drying an object to be dried, wherein a far-infrared heater is provided on a wall surface including a ceiling of a drying chamber in which the object to be dried is stored. Meanwhile, the drying chamber is averagely heated by the heat from the far-infrared heater, and air supply means and exhaust means communicating with the drying chamber are provided, and external air is introduced into the drying chamber by the air supply means. On the other hand, the air in the drying chamber is exhausted by the exhaust means in a much larger amount than the air supplied by the air supply means, and the pressure in the drying chamber is constantly maintained in a reduced pressure state. detected, with adjusting the intensity of the far infrared radiation heater on the basis of the detection temperature detected by the temperature sensor, the exhaust gas by suction air amount and the exhaust means by the air supply means
It is characterized in that the air volume is controlled separately.
【０００８】[0008]
【作用】上記構成による本発明によれば、遠赤外線ヒー
タにより乾燥室内を均一に加熱し、室内の気流を循環さ
せることによって乾燥を促進させ、さらに、乾燥室内を
減圧状態に維持しているので、少ない投入エネルギーで
しかも短時間のうちに被乾燥体の表面のみならず内部か
らも水分を蒸発させることができる。According to the present invention having the above-mentioned structure, the drying chamber is uniformly heated by the far-infrared heater, the drying is promoted by circulating the airflow in the chamber, and the drying chamber is maintained at a reduced pressure. In addition, it is possible to evaporate moisture not only from the surface of the object to be dried but also from the inside thereof in a short time with a small input energy.
【０００９】[0009]
【実施例】以下、図面を参照しながら本発明に係る被乾
燥体の乾燥システムの実施例について説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a drying system for a body to be dried according to the present invention will be described below with reference to the drawings.
【００１０】図１は本発明に係る被乾燥体の乾燥システ
ムの概略を示したもので、図２はその概略を斜視図で示
したものである。この乾燥システム１０では、周囲を断
熱材で囲繞した乾燥室１１の上方部に第２の部屋１２が
画成されている。また、乾燥室１１内には出入口１３を
介して出入りできるようになっている。FIG. 1 schematically shows a drying system for a material to be dried according to the present invention, and FIG. 2 is a perspective view schematically showing the drying system. In this drying system 10, a second room 12 is defined above a drying room 11 surrounded by a heat insulating material. Further, the inside of the drying chamber 11 can be entered and exited through the entrance 13.
【００１１】そして、乾燥室１１内には、台車１４に予
め多数の被乾燥体１５が多段に積層され、この台車１４
を介して被乾燥体１５が収納される。一方、乾燥室１１
内には、給気手段１６と排気手段１７とが別々に設けら
れており、給気手段１６は上部に、排気手段１７は下部
に設けられている。In the drying chamber 11, a large number of objects to be dried 15 are previously stacked on a carriage 14 in multiple stages.
The object to be dried 15 is stored via the. On the other hand, drying room 11
Inside, an air supply means 16 and an exhaust means 17 are separately provided, and the air supply means 16 is provided at an upper part and the exhaust means 17 is provided at a lower part.
【００１２】給気手段１６は、配管１８を介して屋外の
新鮮な空気を乾燥室１１内に導入し、乾燥室１１内の気
流を循環させるもので、屋外の空気は第２の部屋１２内
に設置されたファン１９で吸引される。そして、吸引さ
れた空気は、エアフィルタ２０、２１を介して一旦、こ
の第２の部屋１２内に導入され、乾燥室１１の天井１１
ａに形成された図示しない開口を介して乾燥室１１内に
供給される。The air supply means 16 introduces fresh air outside into the drying chamber 11 through a pipe 18 and circulates the airflow inside the drying chamber 11 . The suction is performed by the fan 19 installed in the device. Then, the sucked air is once introduced into the second room 12 via the air filters 20 and 21,
The liquid is supplied into the drying chamber 11 through an opening (not shown) formed in the a.
【００１３】そして、この乾燥室１１内に供給された空
気は、給気手段１６で第２の部屋１２と乾燥室１１との
間を適宜循環されている。したがって、乾燥室１１内で
は、気流の循環が生じている。The air supplied into the drying chamber 11 is appropriately circulated between the second chamber 12 and the drying chamber 11 by the air supply means 16. Therefore, airflow is circulating in the drying chamber 11.
【００１４】また、排気手段１７は、乾燥室１１内の加
湿空気を側方に配設された２つの配管２３、２４を介し
て屋外に排出するもので、１つあるいは別々のモータで
駆動するブロア２５、２６を有している。The exhaust means 17 discharges the humidified air in the drying chamber 11 to the outside through two pipes 23 and 24 disposed on the side, and is driven by one or separate motors. It has blowers 25 and 26.
【００１５】さらに、上記給気手段１６および排気手段
１７の配管１８および配管２３、２４には、それぞれバ
ルブ３１、３２、３３が配設され、自動あるいは手動に
より管路の開度を調整できるようになっている。Further, valves 31, 32 and 33 are provided in the pipes 18 and the pipes 23 and 24 of the air supply means 16 and the exhaust means 17, respectively, so that the degree of opening of the pipes can be adjusted automatically or manually. It has become.
【００１６】給気手段１６は、制御盤６０のレギュレー
タ２７で吸引風量を調整するもので、風量設定器２８に
より吸引風量が指定される。一方、排気手段１７は、レ
ギュレータ２９で排気風量を調整するもので、風量設定
器３０により排気風量が設定される。なお、この排気風
量は、上記吸気風量に比べて大幅に多くする。例えばこ
の排気能力は最大１５００ｍ3/Ｈ〜最小５００ｍ3/Ｈの
範囲である。The air supply means 16 adjusts the amount of suction air by the regulator 27 of the control panel 60, and the amount of suction air is designated by the air volume setting device 28. On the other hand, the exhaust unit 17 adjusts the exhaust air volume by the regulator 29, and the exhaust air volume is set by the air volume setting unit 30. It should be noted that the exhaust air volume is made much larger than the intake air volume. For example, the exhaust capacity ranges from a maximum 1500 m 3 / H to Min 500m 3 / H.
【００１７】このような給気手段１６および排気手段１
７は、共に１００Ｖ電源２２により稼動される。他方、
乾燥室１１の天井１１ａには、図３に示したような遠赤
外線ヒータ３３が設置されている。Such an air supply means 16 and an exhaust means 1
7 are both operated by a 100V power supply 22. On the other hand,
On the ceiling 11a of the drying chamber 11, a far infrared heater 33 as shown in FIG. 3 is installed.
【００１８】この遠赤外線ヒータ３３は、天井１１ａを
構成する母材３４にセラミック溶射層３５が設けられて
いる。また、母材３４の背面には、加熱手段３６が配置
され、外側がケーシング３７で覆われている。In the far infrared heater 33, a ceramic sprayed layer 35 is provided on a base material 34 constituting the ceiling 11a. A heating means 36 is arranged on the back of the base material 34, and the outside is covered with a casing 37.
【００１９】上記母材３４は例えば２ｍｍ厚さのＡｌ板
であり、セラミック溶射層３５の厚さは２０ミクロン程
度である。ただし、母材３４を構成する部材には、特に
限定はなくセラミック溶射の母材として使用することの
できる材料であればステンレスなど他の材料を用いても
良い。また、パンチングプレート等の多孔板を用いて、
この孔を空気通路としても良い。The base material 34 is, for example, an Al plate having a thickness of 2 mm, and the thickness of the ceramic sprayed layer 35 is about 20 microns. However, the members constituting the base material 34 are not particularly limited, and other materials such as stainless steel may be used as long as the material can be used as a base material for ceramic spraying. Also, using a perforated plate such as a punching plate,
This hole may be used as an air passage.
【００２０】前記セラミックは、１種類の原料である必
要はなく、種々の原料を混合した組成物であってよい。
使用しうる原料には特に限定はないが、遠赤外線を多く
放射するセラミックとしては、例えばジルコニア、マグ
ネタイト、アルミナ、ジルコン、鉄、クロム、マンガン
などの複合酸化物などが挙げられる。The ceramic need not be a single type of raw material, but may be a composition in which various raw materials are mixed.
Although there is no particular limitation on the raw materials that can be used, examples of ceramics that emit a large amount of far infrared rays include zirconia, magnetite, alumina, zircon, composite oxides such as iron, chromium, and manganese.
【００２１】セラミックの溶射は、通常プラズマ溶射ガ
ンによって行なう。このプラズマ溶射ガンは、１万°Ｃ
以上の超高温プラズマアーク炎を作り、これに粉末とし
た原料を送り込み、マッハ１〜２などの高速ジェット噴
流中で融解させながら対象母材表面に原料を叩きつけて
セラミック層を形成するものである。[0021] Thermal spraying of the ceramic is usually performed by a plasma spray gun. This plasma spray gun is 10,000 ° C
The above-mentioned ultra-high temperature plasma arc flame is made, and the raw material in the form of powder is fed into the flame, and the raw material is beaten to the surface of the target base material while being melted in a high-speed jet jet such as Mach 1-2 to form a ceramic layer. .
【００２２】本実施例の遠赤外線ヒータ３３は上記のよ
うに形成され、乾燥室１１の天井１１ａの略全面に構成
され、２００Ｖ電源４３により稼動される。また、乾燥
室１１内には温度センサ３１が設置されるとともに、イ
ンバータ３２を有している。このような遠赤外線ヒータ
３３の強弱は連続的な調整が可能になっている。The far-infrared heater 33 of this embodiment is formed as described above, is formed on substantially the entire surface of the ceiling 11 a of the drying chamber 11, and is operated by a 200 V power supply 43. The drying chamber 11 has a temperature sensor 31 and an inverter 32. The strength of the far-infrared heater 33 can be continuously adjusted.
【００２３】このような遠赤外線ヒータ３３を用いる
と、床面からの高さが２．５メートルであるとき、この
高さでの温度が例えば３７°Ｃであるとき、ヒータ３３
の稼動から１０分程で所定の３７°Ｃに到達する。ま
た、床付近の温度は、実線４６で示したようにこれより
高く、４１℃付近にある。したがって、乾燥室１１内で
は、床付近にある被乾燥体１５も効率的に乾燥すること
ができる。このような遠赤外線ヒータ３３を使用するこ
とにより、高い遠赤外線放射効率により少ない投入エネ
ルギーで被乾燥体の表面のみならず中心部からも水分を
放出させることができる。実験結果によれば、従来の加
熱手段により乾燥させた場合に比べて２倍もの水分を内
部から放出させることができた。When such a far-infrared heater 33 is used, when the height from the floor is 2.5 meters, when the temperature at this height is, for example, 37 ° C., the heater 33
The temperature reaches a predetermined 37 ° C. in about 10 minutes from the start of operation. The temperature near the floor is higher than this, as indicated by the solid line 46, and is around 41 ° C. Therefore, in the drying chamber 11, the object to be dried 15 near the floor can be efficiently dried. By using such a far-infrared heater 33, it is possible to discharge moisture not only from the surface of the object to be dried but also from the central part with a small input energy due to a high far-infrared radiation efficiency. According to the experimental results, it was possible to release twice as much water from the inside as compared with the case where drying was performed by the conventional heating means.
【００２４】本実施例による被乾燥体の乾燥システム１
０は上記のように構成されているが、以下にその作用に
ついて説明する。今、乾燥室１１内には、台車１４に積
層されて被乾燥体１５が多量に収容されている。また、
給気手段１６および排気手段１７および遠赤外線ヒータ
３３は、制御盤６０で調整されてそれぞれ稼動されてい
る。The drying system 1 for the object to be dried according to the present embodiment.
0 is configured as described above, and its operation will be described below. Now, in the drying chamber 11, a large amount of the objects to be dried 15 which are stacked on the carriage 14 are accommodated. Also,
The air supply means 16, the exhaust means 17, and the far-infrared heater 33 are adjusted and operated by the control panel 60.
【００２５】このような乾燥室１１内では、給気手段１
６を介して外部の新鮮な空気が第２の部屋１２を介して
供給され、乾燥室１１内に対流が生じ、気流が循環され
ている。また、排気手段１７を介して乾燥室１１内の空
気が外部に排出されている。さらに、乾燥室１１内で
は、給気に比べて排気を大幅に増やすことにより、圧力
が例えば、大気圧より３mb以上、好ましくは１０mb以上
低い圧力に維持されている。In such a drying chamber 11, the air supply means 1
External fresh air is supplied via the second chamber 12 via 6, convection occurs in the drying chamber 11, and the airflow is circulated. Further, the air in the drying chamber 11 is exhausted to the outside via the exhaust means 17. Further, in the drying chamber 11, the pressure is maintained at, for example, a pressure lower than the atmospheric pressure by 3 mb or more, preferably by 10 mb or more by greatly increasing the exhaust gas as compared with the air supply.
【００２６】さらに、乾燥室１１内では、遠赤外線ヒー
タ３３の稼動により、天井１１ａからは被乾燥体１５が
吸収しやすい遠赤外線が放射されている。したがって、
このような乾燥室１１内では、室内が略均一に加熱さ
れ、室内の気流が循環されるとともに、減圧されている
ので、水分の蒸発が促進されている。また、台車１４に
積載された被乾燥体１５からは、表面のみならず中心部
からも水分が蒸発される。このように、乾燥室１１内で
は水分の乾燥が早く、これにより乾燥時間を短くするこ
とができる。乾燥室１１内で乾燥するものとしては、例
えば、アジ、サバ、サケ、片口鰯、畳鰯、鰈などの魚類
の他、タコ、ホタテ、アサクサノリ、コンブ、桜貝、海
鼠などの他の海産物が挙げられる。Further, in the drying chamber 11, far infrared rays which are easily absorbed by the object 15 to be dried are radiated from the ceiling 11a by the operation of the far infrared heater 33. Therefore,
In such a drying chamber 11, the inside of the room is heated substantially uniformly, the airflow in the room is circulated, and the pressure is reduced, so that the evaporation of water is promoted. In addition, moisture is evaporated not only from the surface but also from the central portion from the object to be dried 15 loaded on the carriage 14. As described above, the moisture is dried quickly in the drying chamber 11, thereby shortening the drying time. What is dried in the drying chamber 11 includes, for example, fish such as horse mackerel, mackerel, salmon, one-sided sardine, tatami sardine, and turbot, as well as other marine products such as octopus, scallops, asakusanori, kelp, cherry shellfish, and sea rat.
【００２７】しかし、乾燥するものとしては、海産物に
何ら限定されず、イモ、干し柿など農産物を乾燥するこ
ともできる。このような乾燥システム１０を用いれば、
例えば、海産物の畳鰯などを乾燥させる場合に、従来は
天火に干して干物としていたため、天候に左右される場
合もあったが、本実施例によれば天候を全く気にしなく
ても畳鰯を製造することができる。したがって、計画的
に干物等を製造することができる。また、畳鰯などの乾
燥に際しては、乾燥が余りに進んでしまうと、じゃこに
なってしまうものもあったが、乾燥の度合いを室温、乾
燥時間、圧力などを制御盤６０から適宜に調整すること
ができ、所望とする畳鰯を製造することができる。However, what is dried is not limited to marine products, and agricultural products such as potatoes and dried persimmons can also be dried. With such a drying system 10,
For example, when drying tatami sardines and the like of marine products, the tatami sardines may be affected by the weather because they were conventionally dried on a fire and dried, but according to the present embodiment, the tatami sardines can be used without worrying about the weather at all. Can be manufactured. Therefore, it is possible to systematically manufacture dried fish and the like. Further, when drying tatami sardines and the like, if the drying proceeds too much, there may be jams. However, the degree of drying can be appropriately adjusted from the control panel 60 such as room temperature, drying time, and pressure. The desired tatami sardines can be produced.
【００２８】また、本実施例によれば、加湿空気を冷却
するのではなく、外部に放出してしまうので、従来のよ
うに冷却するためのエネルギーが必要でない。しかも遠
赤外線で短時間で乾燥させるので、製造コストが安くな
る。さらに、乾燥時間が短いことから乾燥体の酸化が進
むことがなく、これにより鮮度の良い干物ができ、食し
た場合に美味である。Further, according to the present embodiment, the humidified air is discharged to the outside instead of being cooled, so that energy for cooling as in the conventional case is not required. In addition, since drying is performed in a short time with far infrared rays, the manufacturing cost is reduced. Further, since the drying time is short, the oxidation of the dried body does not proceed, so that dried fish with good freshness can be obtained, which is delicious when eaten.
【００２９】以下に、魚介類等の被乾燥体を上記システ
ムを用いて、被乾燥体に好ましい味覚を出すことのでき
る条件等について説明する。先ず、魚介類等が死ぬと、
肉質が時間の経過とともに変化する。すなわち、筋肉中
のＡＴＰ（アデノシン三燐酸）は以下のように分解す
る。Hereinafter, conditions and the like for giving a desirable taste to a dried object such as fish and shellfish using the above-described system will be described. First, when the fish and shellfish die,
Meat quality changes over time. That is, ATP (adenosine triphosphate) in muscle is decomposed as follows.
【００３０】ＡＴＰ→ＡＤＰ（アデノシン二燐酸）→Ａ
ＭＰ（アデニル酸）→ＩＭＰ（イノシン酸）→ＨX Ｒ
（イノシン）→ＨX （ヒボキサンチン） このような分解速度は、魚種によって著しく異なること
が、実験により知られているが、イノシン酸の量とうま
みとに間には密接な関係があり、一般にイノシン酸の量
が多いと味覚も良いことが知られている。ATP → ADP (adenosine diphosphate) → A
MP (adenylic acid) → IMP (inosinic acid) → H X R
(Inosine) → H X (Hiboxanthin) It is known from experiments that the rate of such degradation varies significantly among fish species, but there is a close relationship between the amount of inosinic acid and umami. It is known that taste is good when the amount of inosinic acid is large.
【００３１】ここで、魚肉では、死後ＡＴＰ（アデノシ
ン三燐酸）が急速に減少し、これに変ってＩＭＰ（イノ
シン酸）が増加する。例えば図５は、安楽死したタラ筋
肉のＡＴＰ関連化合物の変化量を示したものである（水
産利用原料 野中順三九編新水産学全集 １９９頁）。
この図から分かるように、ＡＴＰの減少とともに、ＩＭ
Ｐが増大し、死後２〜３日でＩＭＰが最大値となる。こ
のように、被乾燥体のＩＭＰが最大値となるときに、乾
燥を終了すれば、被乾燥体は美味しくなる。Here, in fish meat, ATP (adenosine triphosphate) decreases rapidly after death, and IMP (inosine acid) increases instead. For example, FIG. 5 shows the amount of change in ATP-related compounds in euthanized cod muscle (raw materials for fisheries, Jun-san Nonaka, eds., 1991, New Fisheries Science, p. 199).
As can be seen from this figure, as ATP decreases, IM
P increases and IMP reaches a maximum 2-3 days after death. Thus, if the drying is terminated when the IMP of the object to be dried reaches the maximum value, the object to be dried becomes delicious.
【００３２】本発明のシステムでは、乾燥に要する時間
が従来に比べて極めて短くて済み、しかも、乾燥する際
の温度や圧力は遠赤外線ヒータ、給気手段および排気手
段で自由に調整することができるので、最もイノシン酸
が多いときに乾燥を終了するように調整することが可能
である。したがって、いかなる被乾燥体を乾燥する場合
にも、最もイノシン酸の量を多く含む乾燥物を得ること
ができる。本システム中、乾燥温度としては、例えば０
〜５０℃好ましくは１０〜４０℃の範囲であり、初期の
乾燥には３０℃で２０時間、次いで１０℃で３０時間を
かけ、その後３８℃にするなど適宜温度を調整してイノ
シン酸を多く含む乾燥物を得ることができる。 また、
一般に魚介類が死に、ＡＴＰがある程度減少すると、硬
直が起こる。またＡＴＰが消費されると硬直が完了す
る。もし、硬直前の魚を凍結すると、凍結期間中には顕
著な変化を生じないが、融解すると魚体は硬直し、肉片
は収縮し、同時に多量の肉汁（ドリップ）を流出する傾
向がある。本発明のシステムを用いてこのように一旦、
凍結された魚介類を、乾燥させる場合は、温度、圧力等
を調整することにより、死後硬直したものを乾燥する場
合と同じように被乾燥体に含まれるイノシン酸を最大値
になるように調整することが可能になる。In the system of the present invention, the time required for drying can be extremely shorter than before, and the temperature and pressure during drying can be freely adjusted by the far infrared heater, the air supply means and the exhaust means. Since it is possible, it is possible to adjust so as to end the drying when the amount of inosinic acid is the largest. Therefore, when drying any object to be dried, it is possible to obtain a dried product containing the largest amount of inosinic acid. In the present system, the drying temperature is, for example, 0
To 50 ° C., preferably 10 to 40 ° C. The initial drying takes 30 hours at 30 ° C., then 30 hours at 10 ° C., and then adjusting the temperature appropriately to 38 ° C. to increase inosinic acid. A dried product can be obtained. Also,
Rigidity generally occurs when seafood dies and ATP decreases to some extent. When ATP is consumed, the rigidity is completed. If the fish just before stiffness is frozen, no significant change occurs during the freezing period, but when thawed, the fish tends to stiffen, the pieces shrink, and at the same time tend to shed a large amount of juice (drip). Once using the system of the present invention,
When drying frozen seafood, adjust the temperature, pressure, etc., to adjust the inosinic acid contained in the body to be dried to the maximum value in the same way as when drying stiff after death, It becomes possible to do.
【００３３】また一般に、ＡＴＰの消失、筋肉の硬直な
ど普通死後徐々に起こる変化が短時間のうちに進行する
と、筋肉の縮みが大きいが、本発明の乾燥システムを用
いて乾燥させた場合には、乾燥された魚介類等の肉に縮
みや割れが生じにくく、最初の大きさに近い乾燥体が得
られることが確認された。In general, if changes that gradually occur after normal death such as loss of ATP and stiffness of muscle progress in a short time, muscle shrinkage is large. However, when the drying system of the present invention is used for drying, In addition, it was confirmed that shrinkage and cracking hardly occurred in dried meat such as fish and shellfish, and it was confirmed that a dried body close to the initial size was obtained.
【００３４】なお、上記実施例では、遠赤外線ヒータを
天井に設置しているが、この遠赤外線ヒータは左右の壁
面あるいは四壁面に設置しても良い。また、上記実施例
では、給気手段を上部に、排気手段を下部に設けている
が、これに代え、給気手段を下部に排気手段を上部に設
けても良い。しかも、給気手段の空気取り入れ口、およ
び排気手段の空気排出口の数などは実施例に何ら限定さ
れない。また、このようなシステムは、大型なものから
小型なものまで、種々実施することができる。In the above embodiment, the far-infrared heater is installed on the ceiling. However, this far-infrared heater may be installed on the left or right wall surface or on four wall surfaces. In the above embodiment, the air supply means is provided at the upper part and the exhaust means is provided at the lower part. Alternatively, the air supply means may be provided at the lower part and the exhaust means may be provided at the upper part. In addition, the number of air inlets of the air supply means and the number of air outlets of the exhaust means are not limited to the embodiment. In addition, such a system can be variously implemented from a large system to a small system.
【００３５】[0035]
【発明の効果】以上説明したように、本発明に係る被乾
燥体の乾燥システムでは、外部の空気を給気手段で乾燥
室内に導入し、この給気手段で乾燥室内の気流を循環さ
せながら加湿空気を排気手段で排出し、さらにこの排気
手段による排出量を給気手段より大幅に多くして乾燥室
内を減圧状態に維持し、さらに遠赤外線ヒータにより室
内を均一に加熱するので、少ない投入エネルギーでしか
も短時間のうちに被乾燥物を内部から乾燥させることが
できる。また、加湿空気を冷却する必要がないので、そ
の点でも使用するエネルギーが少なくて良い。しかも、
酸化が進んでいない鮮度の良い乾燥体を得ることができ
る。As described above, in the drying system for the object to be dried according to the present invention, external air is introduced into the drying chamber by the air supply means, and the air flow in the drying chamber is circulated by the air supply means. The humidified air is discharged by the exhaust means, and the discharge amount by the exhaust means is much larger than that of the air supply means to keep the drying chamber in a depressurized state. The object to be dried can be dried from the inside with energy and in a short time. Further, since it is not necessary to cool the humidified air, the energy used may be small in that respect. Moreover,
It is possible to obtain a dried product with good freshness, in which oxidation has not progressed.
【００３６】また、天候に左右されないで乾燥体を得る
ことができるので、計画的に乾燥体を製造することもで
きる。Further, since a dried body can be obtained without being affected by the weather, the dried body can be produced systematically.
【図１】図１は本発明の一実施例に係る被乾燥体の乾燥
システムを示す平面図である。FIG. 1 is a plan view showing a drying system for an object to be dried according to an embodiment of the present invention.
【図２】図２は同実施例による乾燥システム概略を斜視
図で示したものである。FIG. 2 is a perspective view schematically showing a drying system according to the embodiment.
【図３】図３は同実施例で採用された遠赤外線ヒータを
示す断面図である。FIG. 3 is a sectional view showing a far-infrared heater employed in the embodiment.
【図４】図４は同実施例による乾燥室内の温度変化の一
例を示したグラフである。FIG. 4 is a graph showing an example of a temperature change in a drying chamber according to the embodiment.
【図５】図５は被乾燥体の一例であるタラの筋肉に含ま
れるＡＴＰ関連化合物が時間の経過とともにどのように
変化するかを示したグラフである。FIG. 5 is a graph showing how an ATP-related compound contained in muscle of cod as an example of a body to be dried changes with time.
【図６】図６は従来の乾燥システムを示す平面図であ
る。FIG. 6 is a plan view showing a conventional drying system.
１０ 乾燥システム １１ 乾燥室 １１ａ 天井 １５ 被乾燥体 １６ 給気手段 １７ 排気手段 ３１ 温度センサ ３３ 遠赤外線ヒータ ６０ 制御盤 DESCRIPTION OF SYMBOLS 10 Drying system 11 Drying room 11a Ceiling 15 Body to be dried 16 Air supply means 17 Exhaust means 31 Temperature sensor 33 Far-infrared heater 60 Control panel
フロントページの続き (56)参考文献 特開 昭57−19583（ＪＰ，Ａ) 特開 昭61−166360（ＪＰ，Ａ) 特開 昭62−59384（ＪＰ，Ａ) 実開 平３−129892（ＪＰ，Ｕ) 実開 昭60−113486（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) F26B 3/00 - 3/36 F26B 9/00 - 9/10 Continuation of the front page (56) References JP-A-57-19583 (JP, A) JP-A-61-166360 (JP, A) JP-A-62-59384 (JP, A) JP-A-3-129892 (JP) , U) Actually open 60-113486 (JP, U) (58) Fields investigated (Int. Cl. 6 , DB name) F26B 3/00-3/36 F26B 9/00-9/10
Claims (1)
壁面に遠赤外線ヒータを配設し、この遠赤外線ヒータか
らの熱により前記乾燥室内を平均加熱するとともに、前
記乾燥室内に連通する給気手段と排気手段とを配設し、
前記給気手段により前記乾燥室内に外部の空気を導入す
る一方、前記排気手段により前記乾燥室内の空気を前記
給気手段による給気より大幅に多く排出して前記乾燥室
内の圧力を常時減圧状態に維持し、さらに前記乾燥室内
の温度を温度センサで検知し、この温度センサで検知さ
れた検知温度に基づいて前記遠赤外線ヒータの強度を調
整するとともに、前記給気手段による吸引風量および前
記排気手段による排気風量とを別々に制御するようにし
たことを特徴とする被乾燥体の乾燥システム。1. A far-infrared heater is provided on a wall surface including a ceiling of a drying chamber in which an object to be dried is stored, and the drying chamber is averagely heated by heat from the far-infrared heater and communicates with the drying chamber. And air supply means and exhaust means
While the outside air is introduced into the drying chamber by the air supply means, the air in the drying chamber is discharged by the exhaust means much more than the air supplied by the air supply means, and the pressure in the drying chamber is constantly reduced. It maintained, further the temperature of the drying chamber was detected by the temperature sensor, as well as adjust the intensity of the far infrared radiation heater on the basis of the detection temperature detected by the temperature sensor, suction air amount and the exhaust gas by the air supply means A drying system for drying an object to be dried, wherein the amount of exhaust air by the means is controlled separately.
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6262983A JP2992868B2 (en) | 1994-07-05 | 1994-10-26 | Drying system for the object to be dried |
| NZ280315A NZ280315A (en) | 1994-10-26 | 1995-10-24 | Drying chamber with temperature controlled far infrared radiation heater and separate air supply and exhaust fans with chamber at reduced pressure |
| TW084111220A TW301599B (en) | 1994-10-26 | 1995-10-24 | |
| AU34420/95A AU676445B2 (en) | 1994-10-26 | 1995-10-25 | System for drying objects to be dried |
| KR1019950037109A KR0149242B1 (en) | 1994-10-26 | 1995-10-25 | System for drying objects to be dried |
| US08/548,231 US5680712A (en) | 1994-10-26 | 1995-10-25 | System for drying objects to be dried |
| CA002161382A CA2161382C (en) | 1994-10-26 | 1995-10-25 | System for drying objects to be dried |
| NO19954256A NO310744B1 (en) | 1994-10-26 | 1995-10-25 | Drying system for objects to be dried |
| EP95307629A EP0709634B1 (en) | 1994-10-26 | 1995-10-26 | Apparatus for drying objects |
| CN95109591A CN1048806C (en) | 1994-10-26 | 1995-10-26 | system for drying items |
| DE69514193T DE69514193T2 (en) | 1994-10-26 | 1995-10-26 | Device for drying objects |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6-153618 | 1994-07-05 | ||
| JP15361894 | 1994-07-05 | ||
| JP6262983A JP2992868B2 (en) | 1994-07-05 | 1994-10-26 | Drying system for the object to be dried |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0875350A JPH0875350A (en) | 1996-03-19 |
| JP2992868B2 true JP2992868B2 (en) | 1999-12-20 |
Family
ID=26482184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6262983A Expired - Fee Related JP2992868B2 (en) | 1994-07-05 | 1994-10-26 | Drying system for the object to be dried |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2992868B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008107051A (en) * | 2006-10-27 | 2008-05-08 | Toshiyuki Muramatsu | Device and method of drying in reduced pressure |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3070001B2 (en) * | 1996-09-17 | 2000-07-24 | ミサト株式会社 | Drying equipment for the object to be dried |
| JP2011185592A (en) * | 2010-02-15 | 2011-09-22 | San Techno Kuga:Kk | Drier |
| CN103994641A (en) * | 2014-04-29 | 2014-08-20 | 成都市龙泉驿区齐盛机械厂 | Drying device |
| CN109237928A (en) * | 2018-11-23 | 2019-01-18 | 安徽应流铸业有限公司 | A kind of wax-pattern essence casting shell fine through holes orientation air-drying device |
| CN109855398A (en) * | 2019-02-27 | 2019-06-07 | 青岛海汇生物工程有限公司 | A kind of vacuum dryer for extraction taurine in oyster shell |
| TWI748885B (en) * | 2021-03-02 | 2021-12-01 | 祐麟實業有限公司 | Negative pressure dryer structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6022264B2 (en) * | 1980-07-10 | 1985-05-31 | 工藤 和子 | Vacuum drying equipment |
| JPS61166360A (en) * | 1985-01-18 | 1986-07-28 | Kuniyasu Okamura | Hot-air generating and ventilating device for closed tea manufacturing machine |
| JP3129892U (en) * | 2006-12-19 | 2007-03-08 | 隆三 阿部 | Supine writing device |
-
1994
- 1994-10-26 JP JP6262983A patent/JP2992868B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008107051A (en) * | 2006-10-27 | 2008-05-08 | Toshiyuki Muramatsu | Device and method of drying in reduced pressure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0875350A (en) | 1996-03-19 |
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