JP3103292B2 - Grain drying equipment - Google Patents
Grain drying equipmentInfo
- Publication number
- JP3103292B2 JP3103292B2 JP07056566A JP5656695A JP3103292B2 JP 3103292 B2 JP3103292 B2 JP 3103292B2 JP 07056566 A JP07056566 A JP 07056566A JP 5656695 A JP5656695 A JP 5656695A JP 3103292 B2 JP3103292 B2 JP 3103292B2
- Authority
- JP
- Japan
- Prior art keywords
- drying
- air
- grain
- drying chamber
- hot air
- 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 - Lifetime
Links
Landscapes
- Drying Of Solid Materials (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は穀物の乾燥装置に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain drying apparatus.
【０００２】[0002]
【従来の技術】米等の穀物は、その長期保存のために、
水分を約１５％以下程度まで乾燥する必要があり、種々
の乾燥手段が提案されている。具体的には、熱風乾燥手
段、真空乾燥手段、減圧乾燥手段が知られている。熱風
乾燥手段は、穀物に熱風を吹き付けて乾燥させるもので
あり、真空乾燥手段は、乾燥室を真空状態にして低温で
の水分蒸発を促進するものであり、減圧乾燥手段は、特
公昭６０−１２５４４号公報に示されているように、密
閉した乾燥室内から室内空気を強制排出して減圧状態に
して乾燥するものである。2. Description of the Related Art Grains such as rice are used for long-term storage.
It is necessary to dry the water to about 15% or less, and various drying means have been proposed. Specifically, hot air drying means, vacuum drying means, and reduced pressure drying means are known. The hot-air drying means is for blowing hot air to the grains to dry them. The vacuum drying means is for evacuating water at a low temperature by evacuating the drying chamber to a vacuum state. As disclosed in Japanese Patent No. 12544, room air is forcibly exhausted from a closed drying chamber and dried under reduced pressure.
【０００３】[0003]
【発明が解決しようとする課題】前記した従来の乾燥手
段にはそれぞれ長所や短所が在る。即ち熱風乾燥では被
乾燥物である穀物の温度が上がりすぎて、穀物自体の熱
変性が生じ、穀物の品質低下を招く。また真空乾燥や従
前の減圧乾燥は密閉された乾燥室を備えなければならな
く、多大の設備投資が必要であり、且つ乾燥程度は、そ
の真空度で左右される。そこで本発明は熱変性が生じな
い穀物温度による効率的な乾燥装置を提案したものであ
る。Each of the above-mentioned conventional drying means has advantages and disadvantages. That is, in hot-air drying, the temperature of the grain to be dried is too high, causing thermal denaturation of the grain itself, resulting in deterioration of the grain quality. In addition, vacuum drying and conventional vacuum drying must be provided with a closed drying chamber, requiring a large investment in equipment, and the degree of drying depends on the degree of vacuum. Therefore, the present invention proposes an efficient drying apparatus using a grain temperature that does not cause heat denaturation.
【０００４】[0004]
【課題を解決するための手段】本発明に係る穀物の乾燥
装置は、穀物を収納すると共に、乾燥熱源を内装して熱
風による乾燥を行う乾燥室と、乾燥室への乾燥用空気の
供給量の制御を可能とした空気導入口制御機構若しくは
送風機と、乾燥室から乾燥後空気を排出を行う吸引ファ
ンとで構成し、乾燥熱源からの熱風を４０℃以下として
乾燥室内の穀物温度を３０℃以下に保ちながら、乾燥用
空気の導入量と吸引ファンによる排気量を制御して乾燥
室内を大気圧より５〜２０ｇ／ｃｍ2 （５０〜２００ｍ
ｍ水柱）程度の減圧状態を維持せしめてなることを特徴
とするものである。SUMMARY OF THE INVENTION A grain drying apparatus according to the present invention accommodates grains and incorporates a drying heat source to heat the grains.
Drying room for drying by wind and air for drying to drying room
Air inlet control mechanism that enables control of supply amount or
A blower and a suction fan that exhausts air after drying from the drying chamber
And the hot air from the drying heat source should be 40 ° C or less.
For drying while keeping the grain temperature in the drying room below 30 ° C
The drying chamber is controlled to 5 to 20 g / cm 2 (50 to 200 m
(m water column).
【０００５】[0005]
【作用】乾燥室内の穀物は、乾燥室内に設置される加熱
源からの熱風によって乾燥され、穀物からの水分を含ん
だ空気が吸引ファンで乾燥室外に排出される。従って乾
燥装置を所定時間稼働することで、乾燥室内の穀物は乾
燥される。そして特に乾燥室内への空気導入量と乾燥室
からの排気量の制御で乾燥室内を減圧状態に維持され、
通常の大気圧状態より水分蒸発が促進されるので、乾燥
室内の乾燥用熱風の温度を通常の熱風乾燥より低温とす
ることができ、穀物温度を、穀物の熱変性を生じさせな
い３０℃以下に抑えたままで乾燥が実現できる。The grain in the drying chamber is dried by hot air from a heating source installed in the drying chamber, and air containing moisture from the grain is discharged out of the drying chamber by the suction fan. Therefore, by operating the drying device for a predetermined time, the grains in the drying chamber are dried. And especially the amount of air introduced into the drying chamber and the drying chamber
The drying chamber is maintained in a reduced pressure state by controlling the amount of exhaust from
Since the evaporation of water is promoted from the normal atmospheric pressure state, the temperature of the hot air for drying in the drying chamber can be lower than that of the normal hot air drying, and the grain temperature does not cause heat denaturation of the grain.
Drying can be realized while keeping the temperature at 30 ° C. or less .
【０００６】[0006]
【実施例】次に本発明の実施例について説明する。図１
及び図２は本発明の第一実施例を示したもので、この実
施例の乾燥装置は、乾燥室Ａ内に乾燥部１，搬送部２、
乾燥熱源としてのバーナー３を設け、供給搬出口部４、
送風機５，吸引ファン６を付設したものである。乾燥部
１は、穀物（籾状態）Ｂを乾燥室内に散布する散布機構
１１と、乾燥室Ａ内で散布された穀物Ｂを所定の箇所に
集めるガイド部１２と、穀物の水分含有量を測定するセ
ンサ（図示せず）からなり、搬送部２は、ガイド部１２
の下方に設けた下部横送コンベア２１と、下部横送コン
ベア２１の端部に設けた縦送コンベア２２と、縦送コン
ベア２２の端部から散布機構１１までの間に設けた上部
横送コンベア２３からなる。Next, an embodiment of the present invention will be described. FIG.
2 shows a first embodiment of the present invention. The drying device of this embodiment includes a drying unit 1, a transport unit 2,
A burner 3 as a drying heat source is provided,
It is provided with a blower 5 and a suction fan 6. The drying unit 1 includes a spraying mechanism 11 for spraying the cereal (paddy state) B into the drying chamber, a guide unit 12 for collecting the cereal B sprayed in the drying chamber A at a predetermined location, and measuring the moisture content of the cereal. The transport unit 2 includes a guide unit 12 (not shown).
, A vertical conveyor 22 provided at an end of the lower horizontal conveyor 21, and an upper horizontal conveyor provided between the end of the vertical conveyor 22 and the spraying mechanism 11. 23.
【０００７】バーナー３は、穀物を乾燥させる熱風の発
生装置であり、供給搬出口部４は、開閉扉（図示せず）
を具備したもので、下部横送コンベア２１の端部に設け
てなる。また送風機５は、乾燥室Ａ内に乾燥用空気（大
気温）を供給するものである。また吸引ファン６は、乾
燥室Ａ内の湿気を帯びた空気を室外に排出するもので、
送風機５の出力よりも大きい出力の機器を採用してな
る。[0007] The burner 3 is a device for generating hot air for drying the grains, and the supply / unload port 4 is provided with an opening / closing door (not shown).
And provided at the end of the lower horizontal conveyor 21. The blower 5 supplies drying air (ambient temperature) into the drying chamber A. The suction fan 6 discharges the moist air in the drying chamber A to the outside.
A device having an output larger than that of the blower 5 is employed.
【０００８】而して前記装置で穀物Ｂを乾燥するには、
供給排出口部３から穀物Ｂを乾燥室Ａ内に供給して各部
を所定時間作動させるもので、穀物Ｂは縦送コンベア２
２、上部横送コンベア２３で散布機構１１まで搬送さ
れ、散布機構１１で散布される。この散布に際して熱風
ａと接触して水分の蒸発がなされ、ガイド板１２によっ
て下部横送コンベア２１上に導かれ、更に縦送コンベア
２２で搬送されると云う循環がなされ、そして穀物Ｂか
らの水分を含んだ空気ｂは、吸引ファン６で乾燥室Ａ外
に排出され、穀物Ｂは徐徐に乾燥され、センサによって
穀物が所定の水分含有率までに低下するまで前記乾燥が
行われ、所定の乾燥が終了すると、供給排出口部３から
乾燥穀物を取り出すものである。[0008] In order to dry the grain B by the above-mentioned apparatus,
The grain B is supplied into the drying chamber A from the supply / discharge port section 3 and each section is operated for a predetermined time.
2. It is conveyed to the spraying mechanism 11 by the upper horizontal conveyor 23 and is sprayed by the spraying mechanism 11. At the time of this spraying, the water is evaporated by contacting with the hot air a, guided by the guide plate 12 onto the lower horizontal conveyor 21 and further conveyed by the vertical conveyor 22, and the water from the grain B is circulated. Is discharged out of the drying chamber A by the suction fan 6, and the grain B is gradually dried. The drying is performed until the grain is reduced to a predetermined moisture content by a sensor. Is completed, the dried cereal is taken out from the supply / discharge port 3.
【０００９】本発明は特に、乾燥室Ａ内に乾燥用空気を
導入する送風機５の出力より乾燥室Ａ内の空気の排出を
なす吸引ファン６の出力を大きくして、乾燥稼働中の乾
燥室Ａ内を大気圧より５〜２０ｇ／ｃｍ2 （５０〜２０
０ｍｍ水柱）程度の減圧状態を維持するようにしたもの
である。このため大気圧状態に比較して穀物から水分が
蒸発しやすいので、熱風温度を４０℃以下とし、穀物温
度を３０℃以下としても充分な乾燥を行うことができ
る。従って通常の熱風乾燥と同様な乾燥時間若しくはそ
れよりも短い乾燥時間で、穀物の品質を低下させる熱変
性を生じさせることなく穀物の乾燥を実現できたもので
ある。According to the present invention, the output of the suction fan 6 for discharging the air in the drying chamber A is made larger than the output of the blower 5 for introducing the drying air into the drying chamber A. 5A to 20 g / cm 2 (50 to 20 g)
(0 mm water column). For this reason, moisture is more likely to evaporate from the grains than in the atmospheric pressure state, so that sufficient drying can be performed even when the hot air temperature is set to 40 ° C or less and the grain temperature is set to 30 ° C or less. Therefore, the grain can be dried in the same drying time as ordinary hot air drying or in a shorter drying time without causing thermal denaturation that lowers the grain quality.
【００１０】又図３は本発明の第二実施例を示したもの
で、バーナー３の代わりに電気ヒーター７を採用し、送
風機５の代わりに空気導入口制御機構８を採用したもの
である。従って吸引ファン６の出力に応じて乾燥室Ａ内
への空気導入量を調整することで、乾燥室Ａ内の気圧を
所定の減圧状態に維持して乾燥作業ができるものであ
る。FIG. 3 shows a second embodiment of the present invention, in which an electric heater 7 is used in place of the burner 3 and an air inlet control mechanism 8 is used in place of the blower 5. Therefore, by adjusting the amount of air introduced into the drying chamber A in accordance with the output of the suction fan 6, the drying operation can be performed while maintaining the pressure in the drying chamber A at a predetermined reduced pressure.
【００１１】尚本発明は、乾燥室への空気の導入と乾燥
室からの排気とを調整することで乾燥室の減圧を行い、
穀物の熱変性が生じ無い温度域での効率的乾燥を実現し
たもので、前記乾燥部１並びに搬送部２等の具体的構成
は、前記した実施例に限定されるものではなく任意に定
めることかでき、バーナー３，送風機５、吸引ファン
６、ヒーター７，空気導入口制御機構８も、本発明を実
施できるものであれば、その具体的構造は任意に定める
ことが出来るものである。According to the present invention, the pressure in the drying chamber is reduced by adjusting the introduction of air into the drying chamber and the exhaust air from the drying chamber.
It realizes efficient drying in a temperature range where heat denaturation of the grain does not occur, and the specific configuration of the drying unit 1 and the transport unit 2 is not limited to the above-described embodiment and may be arbitrarily determined. The specific structure of the burner 3, blower 5, suction fan 6, heater 7, and air inlet control mechanism 8 can be arbitrarily determined as long as the present invention can be implemented.
【００１２】[0012]
【発明の効果】以上のように本発明は、穀物を収納して
乾燥する乾燥室への空気供給と、乾燥室からの排気を調
整して、乾燥室内を大気圧より５０〜２００ｇ／ｃｍ2
程度の減圧状態を維持せしめて穀物乾燥を行うもので、
乾燥のための熱風温度を低くし穀物温度を大きく上昇さ
せることなく速やかな乾燥を実現できたものである。As described above, according to the present invention, the air supply to the drying chamber for storing and drying the grains and the exhaust from the drying chamber are adjusted, so that the drying chamber is kept at 50 to 200 g / cm 2 above atmospheric pressure.
The grain is dried by maintaining a reduced pressure of about
Rapid drying can be realized without lowering the temperature of hot air for drying and greatly increasing the grain temperature.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明の第一実施例の乾燥装置の透視斜視図。FIG. 1 is a perspective view of a drying apparatus according to a first embodiment of the present invention.
【図２】同ブロック図。FIG. 2 is a block diagram of the same.
【図３】本発明の第二実施例のブロツク図。FIG. 3 is a block diagram of a second embodiment of the present invention.
Ａ 乾燥室 １ 乾燥部 ２ 搬送部 ３ バーナー ４ 供給搬出口部 ５ 送風機 ６ 吸引ファン ７ ヒーター ８ 空気導入制御機構 A Drying room 1 Drying section 2 Conveying section 3 Burner 4 Supply / unload section 5 Blower 6 Suction fan 7 Heater 8 Air introduction control mechanism
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平３−102184（ＪＰ，Ａ) 特公 昭47−20945（ＪＰ，Ｂ１) (58)調査した分野(Int.Cl.7，ＤＢ名) F26B 5/04 F26B 9/06 F26B 17/14 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-102184 (JP, A) JP-B-47-20945 (JP, B1) (58) Fields investigated (Int. Cl. 7 , DB name) F26B 5/04 F26B 9/06 F26B 17/14
Claims (1)
して熱風による乾燥を行う乾燥室と、乾燥室への乾燥用
空気の供給量の制御を可能とした空気導入口制御機構若
しくは送風機と、乾燥室から乾燥後空気を排出を行う吸
引ファンとで構成し、乾燥熱源からの熱風を４０℃以下
として乾燥室内の穀物温度を３０℃以下に保ちながら、
乾燥用空気の導入量と吸引ファンによる排気量を制御し
て乾燥室内を大気圧より５〜２０ｇ／ｃｍ2 （５０〜２
００ｍｍ水柱）程度の減圧状態を維持せしめてなること
を特徴とする穀物乾燥装置。Claims 1. A grain storage and drying heat source
Drying room for drying with hot air and drying for drying room
Air inlet control mechanism that enables control of air supply
Or a blower and a suction vent to exhaust air after drying from the drying chamber.
With a draw fan, the hot air from the drying heat source is kept at 40 ° C or less, and the grain temperature in the drying room is kept at 30 ° C or less,
Controls the amount of drying air introduced and the amount of air exhausted by the suction fan.
5 to 20 g / cm 2 (50 to 2 g)
A grain drying apparatus characterized by maintaining a reduced pressure of about 00 mm water column).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07056566A JP3103292B2 (en) | 1995-02-20 | 1995-02-20 | Grain drying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07056566A JP3103292B2 (en) | 1995-02-20 | 1995-02-20 | Grain drying equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08226760A JPH08226760A (en) | 1996-09-03 |
| JP3103292B2 true JP3103292B2 (en) | 2000-10-30 |
Family
ID=13030692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07056566A Expired - Lifetime JP3103292B2 (en) | 1995-02-20 | 1995-02-20 | Grain drying equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3103292B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030085774A (en) * | 2002-05-01 | 2003-11-07 | 김영광 | Hot Air Drying Equipment |
| DE102004041375A1 (en) * | 2004-03-24 | 2005-10-13 | Coperion Waeschle Gmbh & Co. Kg | Device for controlling the temperature of bulk material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03102184A (en) * | 1989-09-13 | 1991-04-26 | Iseki & Co Ltd | Drying device for cereals drier |
-
1995
- 1995-02-20 JP JP07056566A patent/JP3103292B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08226760A (en) | 1996-09-03 |
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