JP3880213B2

JP3880213B2 - Cereal drying method

Info

Publication number: JP3880213B2
Application number: JP22455198A
Authority: JP
Inventors: 義則大角; 節夫笹木; 正春種市
Original assignee: Hokoku Kogyo Co Ltd
Current assignee: Hokoku Kogyo Co Ltd
Priority date: 1998-08-07
Filing date: 1998-08-07
Publication date: 2007-02-14
Anticipated expiration: 2018-08-07
Also published as: JP2000055556A

Description

【０００１】
【産業上の利用分野】
本発明は穀物乾燥処理方法、特に、共通の乾燥用空気送風ダクトを持つ複数個のビン（角ビン）を用いて、穀物の初期乾燥から仕上げ乾燥後の貯蔵までを行うのに適した改良された穀物乾燥処理方法に関する。
【０００２】
【従来の技術】
例えば米の場合、荷受けされた収穫米は、火力乾燥にて水分を通常２４％から１７％まで乾燥され（なお、この２４％は、農林水産省が収穫米の処理計画水分を２４％としていることにより、また、１７％は、農林水産省が短期間の１次的貯留を安全に行える基準として無通風にて１７％以下で３５日間以内の貯留と定めていることによる。なお、本明細書で「半乾水分」というときは、上記の意味で１７％以下となった水分状態をいう）、一次貯留槽に貯留される。一次貯留した収穫米は、次に仕上げ火力乾燥工程により、規定水分１６〜１４．５％以下にまで仕上げ乾燥され、精選後計量してサイロに貯蔵される。
【０００３】
この火力乾燥による処理方法は、火力乾燥工程で、水分２４％から１７％まで一気に乾燥させるものであり、収穫米の中には過乾燥し胴割れを生じる場合がある。また、加温するために穀温が上昇し、品質が低下する場合がある。
上記のような火力乾燥の持つ不都合を解消したものとして、例えば特開平３−１２２４８４号公報には、多数の乾燥タンクと多数の貯蔵ビン及び籾摺機などの処理装置を備え、乾燥タンクには空調装置で除湿した除湿空気を供給して乾燥タンクに搬入した穀物を除湿乾燥するとともに、乾燥した穀物を貯蔵ビンで貯蔵し、必要に応じて貯蔵ビンに貯蔵した穀物を取り出し、籾摺などの処理をしたのち袋詰めするなどして出荷するようにしたものが提案されている。
【０００４】
この乾燥処理方法は従来の火力乾燥の持つ不都合を解消するものであるが、乾燥タンク内での乾燥むらをなくすために、乾燥タンクとは別に入れ替えタンクを設け、乾燥タンクでの１回の除湿乾燥工程が終了したとき、当該乾燥タンクの一つからローテーション用タンクに穀物を入れ替え、空となった乾燥タンクに他の乾燥タンクの穀物を移し、最後に空となった乾燥タンクにローテーション用タンクの穀物を移すという、いわゆるローテーション作業を行い下層の良く乾燥した穀物と上層の乾きの悪い穀物とを混じり合わせ、その後に再び除湿乾燥を行うことにより、水分を均一なもとしている。
【０００５】
この処理施設は、乾燥タンクのほかに貯蔵タンク及びローテーション用タンクを必要とし、施設費が高くなるばかりでなく、乾燥タンクの多い大型施設では、ローテーション作業は大きな作業量となる。ローテーション能力は１ビンよりの風による排出能力に依存するが、通常の乾燥処理施設における排出能力は１時間当たり２０〜３０トンであり５０トンビンを１つ空にするのに２〜３時間必要となる。例えば１０個のビンを持つ施設の場合にはこのローテーション作業だけで１日を必要とする。
【０００６】
その不都合を解消する一つの提案として、図７に示すように、多数の貯蔵ビンＡ（Ａ１〜Ａ１０）と、これら貯蔵ビンＡのうち穀物が搬入された貯蔵ビン（例えば、Ａ１）から空の貯蔵ビン（例えば、Ａ２）へ移し換えるための取出コンベア１０、投入エレベータ１１、投入コンベア１２などからなる入れ替え装置と、空の貯蔵ビンを着ビンに順次指定し、穀物が搬入された貯蔵ビンから空の貯蔵ビンに移し替えを指示するローテーション指示手段と、前記入り換え装置に動作指令を順次出力する出力部とを備えたローテーション制御機構とを設け、前記貯蔵ビンＡ（Ａ１〜Ａ１０）において、乾燥と必要なローテーションを行うと共に、そこで出荷までの貯蔵をも行うようにした処理施設が知られている（特開平５−７９７５９号公報参照）。
【０００７】
なお、図７において、１は穀物集荷用の荷受けホッパー、２は荷受け昇降機、４は粗選機、５は計量機であり、荷受けされた穀物は該計量機５により所定量（例えば３００ｋｇ）毎計量された後に、投入エレベータ１１、投入コンベア１２により必要な所蔵ビンに投入される。また、必要な乾燥処理を終えて貯蔵されている穀物は、必要に応じて、取出コンベア１０から搬出され、排出エレベータ１３から、調節タンク６、籾摺機７、揺動選別機８、出荷タンク９を備えた穀物搬出部を介して、系外に搬出される。
【０００８】
このものは、従来の施設のように、乾燥タンクと貯蔵ビンとをそれぞれ備えることを要せず、また、特別のローテーション用タンクも不要であり、設備費が低減できると共に作業者が移し替えを行うたびに、発ビン、着ビンを指定する必要もなく簡単な操作で乾燥ムラのない処理を行うことのできる利点がある。
【０００９】
しかしながら、この方式による処理施設は、いずれにしろ乾燥処理の過程で穀物を移動させるものであることから、ローテーション用の貯蔵ビンが必要であり、また、これを監視するために作業者がシステム全体をウオッチングすることが必要となる。さらに、貯蔵効率を上げるために乾燥を高積みで行うと、上下間で水分差が生じ仕上げ乾燥が困難になる恐れがある。
さらに改良された多数の貯蔵ビンを持つ穀物乾燥処理装置として、特開平７−１０３６４８号公報には、図８に示すような、貯留ビン間での穀物のローテーションを行わなくても乾燥むらのない乾燥処理を行うことができる穀物乾燥処理装置が提案されている。
【００１０】
この穀物乾燥処理装置は、荷受け部及び穀物搬出部は前記図７に示したものと同様であってよく、荷受けされた穀物は、所定量毎計量された後にビン投入エレベータＥからトップコンベアＴＣ介して、所定のビン（Ａ１〜Ａ７列及びＢ１〜Ｂ７列）に順次等しい厚みで投入される。各ビン列の下方部は除湿空気の供給路（乾燥用空気送風ダクト）Ｐを形成しており、該供給路Ｐは従来知られた空気調和装置２０、送風機２１に接続していて、除湿空気が供給され、各ビン内の穀物の乾燥に共される。ビン列Ａ１〜Ａ７及びＢ１〜Ｂ７の下方にはボトムコンベアＢＣが設けてあり、処理済の穀物は該ボトムコンベアＢＣから前記ビン投入エレベータＥに送られその上方部から切替え弁を介して調節タンク６に搬送され、以下穀物搬出部を順次通過して施設外に運ばれる。
【００１１】
上記の構成は先に図７に基づき説明した処理施設とほぼ同様であるが、この処理施設では、各ビン（Ａ１〜Ａ７及びＢ１〜Ｂ７）に、収容する穀物を少なくとも上下方向に攪拌することのできる攪拌装置１００が取り付けられている点で図７のものと相違している。
この穀物乾燥処理装置においては、各貯留ビン内の穀物は常に攪拌装置によって少なくとも上下方向の攪拌を受けることとなり、従来の乾燥処理施設におけるようにいわゆるローテーション作業を行わなくとも、除湿空気の供給による乾燥過程においてビン内の穀物に乾燥むらが生じることなく、所望の乾燥処理を終了することができる。また、乾燥処理終了後の穀物をそのままビン内貯留しておくことが可能であり、遊休ビンも無くすことができ、施設費及び維持費の全体としてのコストダウンとなる。
【００１２】
【発明が解決しようとする課題】
上記のように攪拌装置を備えた貯蔵ビンを持つ乾燥処理装置は多くの利点を有しているが、反面、多数のビンを備えた処理施設においては、すべてのビンに攪拌装置を備えるために施設の設置コストが高くなると共に、攪拌装置駆動用の電力量が大きくなるなどから施設の運転コストも高騰せざるを得ないものとなっている。
【００１３】
また、すべてのビンに等しい高さで穀物を堆積した状態で、通風による乾燥処理を行うことが最も効率的な運転となるが、通常の処理施設では、荷受期間の異なる複数品種の荷受けを行うために、同一系列の乾燥ユニット内に堆積高さの異なるビンが生じがちであり、安全風量比が確保できないビンが発生する場合が起こりうる。また、そのために、乾燥時間の多くが、少数ビンでの高積み乾燥となりがちであり、送風時の穀物抵抗が大きくなり、送風機発生風量が減少して乾燥効率を低下させる事態が生じる恐れがある。
【００１４】
本発明は、攪拌装置を備えた貯蔵ビンを持つ乾燥処理施設の持つ上記のよう不都合を解消することを目的としており、より具体的には、穀物乾燥処理施設の設置コストと運転コストの双方を低減しながら、ビンの容積効率及び送風による乾燥効率の双方を低下させることがなく、また、オペレータの作業負担を大きく削減することができる穀物乾燥処理方法を得ることを目的とする。
【００１５】
【課題を解決するための手段】
本発明の穀物乾燥処理方法においては、乾燥処理装置として、基本的に、投入用搬送機と乾燥用空気送風ダクトとを共用するようにされた複数個のビンを備え、該複数個のビンは、ビン内の穀物を少なくとも上下方向に攪拌するための攪拌装置が取り付けられたものと、それを有しないもとので構成されている乾燥ユニットが用いられる。
【００１６】
本発明において、荷受けした穀物は投入用搬送機により前記攪拌装置を備えたビンに投入され、そこで該攪拌装置により必要な攪拌を行いながら半乾燥貯蔵可能な半乾水分まで乾燥させ、その後、該半乾燥した穀物を投入用搬送機を用いて前記攪拌装置を有しないビンに移し替える処理を、該攪拌装置を有しないビンが満量となるまで繰り返す。攪拌装置を有しないビンに貯留された半乾燥した穀物は荷受終了まで通風を行わない半乾貯蔵とされ、そのまま出荷時点まで貯蔵される。
【００１７】
前記攪拌装置を有しないビンが満量となった以降は、荷受けした穀物を投入用搬送機により前記攪拌装置を備えたビンに順次投入し、そこで攪拌装置により必要な攪拌を行いながら、仕上げ水分まで乾燥させる処理を行う。乾燥終了した穀物は、そこで、そのまま出荷時点まで貯蔵される。
本発明による穀物乾燥処理方法の他の態様では、前記と同様にして攪拌装置を有しないビンが満量となるまでの処理を繰り返し、攪拌装置を有しないビンが満量となった以降は、荷受けした穀物を投入用搬送機により前記攪拌装置を備えたビンに投入し、そこで攪拌装置で必要な攪拌を行いながら半乾燥貯蔵可能な半乾水分まで乾燥させた後、該半乾燥した穀物を攪拌装置を備えたビンの一部に積み上げていく処理を当該一部のビンが満量となるまで繰り返す。満了となった半乾燥した穀物は、そこで、仕上げ水分まで乾燥させる処理が行われ、乾燥終了した穀物は、そのまま出荷時点まで貯蔵される。
【００１８】
前記半乾水分まで乾燥した穀物を積み上げていく攪拌装置を備えた一部のビンが満量となった以降は、荷受けした穀物を投入用搬送機により残りの前記攪拌装置を備えたビン順次投入して攪拌装置で必要な攪拌を行いながら仕上げ水分まで乾燥させる処理を行い、乾燥終了した穀物は、そこで、そのまま出荷時点まで貯蔵される。
【００１９】
本発明による穀物乾燥処理方法では、処理施設として、１乾燥ユニット内の複数のビンを、ビン内の穀物を少なくとも上下方向に攪拌するための攪拌装置が取り付けられたものと、それを有しないもとので構成するようにしたので、攪拌装置の取り付けに係る諸費用を従来の施設よりも削減することができ、施設全体の設置コストは低減する。また、攪拌装置の数が少ないだけ、運転コストも低減する。
【００２０】
本発明による穀物乾燥処理方法によれば、上記のような低コストでの設置及び運転が可能な処理施設を用いながら、すべてのビンに攪拌装置を備えた処理施設によって穀物を乾燥処理する場合と同等の、あるいは、それ以上の乾燥効率でもって、穀物を乾燥処理することができる。
【００２１】
すなわち、荷受け終了時にて、攪拌装置を取り付けたビン（乾燥ビン）とそれを有しないビン（貯蔵ビン）の全ビンに穀物を貯蔵可能であり、貯蔵効率を高くすることができる。また、いわゆるローテーション作業を行う必要はあるが、乾燥ビンから荷受けビン、あるいは、乾燥ビンから他の乾燥ビンへの一回のみで荷受け終了まで運転可能であり、大きな作業負担とならないと共に、同一系列内での移動であり自動運転が可能となる。また、ローテーションに伴う風量ロス、搬送に伴う動力消費が減少することからも、運転コストが低減する。
【００２２】
さらに、荷受け開始から荷受け後期での乾燥ビン内での累積攪拌混合乾燥処理、すなわち、荷受け穀物を順次投入して攪拌装置で必要な攪拌を行いながら仕上げ水分まで乾燥させる処理、を行うまでの期間は、複数品種の荷受けを行っても高積み乾燥を回避することができ、乾燥効率のよい乾燥となり、乾燥時間・運転コスト共に低減できる。
本発明は、さらに、前記した乾燥ユニットを複数系列持ち、各乾燥ユニット系列に共通の荷受け部を持ち、荷受け部から各乾燥ユニット系列に投入された穀物は、当該乾燥ユニット系列内において、上記した穀物乾燥処理方法により仕上げ乾燥まで処理されることを特徴とする穀物乾燥処理方法をも開示する。
【００２３】
【発明の実施の形態】
以下、本発明の好ましい実施の形態を説明する。最初に、図１及び図２に基づき、本発明による穀物乾燥処理方法を実施するのに好適な処理施設の一例を説明する。
図示される穀物乾燥処理装置は、基本的には図８に基づき先に説明した穀物乾燥処理装置と同様な装置であり、ただ、複数個のビンのすべてに攪拌装置１００が取り付けられるのではなく、１乾燥ユニットを構成する複数個のビンは、ビン内の穀物を少なくとも上下方向に攪拌するための攪拌装置が取り付けられたものと、それを有しないもとので構成されている点でのみ異なっている。従って、図１では、図８に示した荷受け部及び穀物搬出部は省略していると共に、同じ機能を奏する部材には同じ符号を付し、詳細な説明は行わない。
【００２４】
図１及び図２に示すように、穀物乾燥処理装置は、角型のビンＡ１〜Ａ１２及びＢ１〜Ｂ１２が互いに近接して２列に配列している。列Ａと列Ｂからなるビン群の図２において右側（以下便宜上、前方側という）近傍には前記した荷受部及び穀物搬出部を構成する各部材が配置されており、左側（以下便宜上、後方側という）近傍には前記した空気調和装置２０、送風機２１とが各列毎に配置されている。
【００２５】
図２に示すように、ビン群の前方側であって列Ａと列Ｂとの間の位置には投入エレベータＥが１機配置されており、さらに、列Ａと列Ｂの中間位置であってビンの上端部よりも上方位置には前記トップコンベアＴＣが１機配置されている。該トップコンベアＴＣの前方端（上流端）は前記投入エレベータＥの上方放出口の下方位置に位置している。このトップコンベアＴＣは本発明でいう投入用搬送機の一部を構成する。図１に示すように、ビンの下端部よりも下方位置にはボトムコンベアＢＣが設けてあり、その前方端（送り下流端）は投入エレベータＥの穀物投入口近傍に位置している。
【００２６】
トップコンベアＴＣには各ビンＡ１〜Ａ１２及びＢ１〜Ｂ１２に対応して開閉弁付きの穀物投入口ＴＣ１・・が設けてあり、また、各ビンの下方部分には穀物取出口８・・が前記ボトムコンベアＢＣに近接する位置に配置されている。それらの開口の開閉は適宜の制御機構を介して行われる。
この実施形態において、各ビンＡ１〜Ａ１２及びＢ１〜Ｂ１２のうち、ビンＡ１〜Ａ６及びＢ１〜Ｂ６には攪拌装置１００が取り付けられており（このビンを乾燥ビンという）、Ａ７〜Ａ１２及びＢ７〜Ｂ１２には取り付けられていない（このビンを貯蔵ビンという）。攪拌装置１００は、貯留槽内の穀物を上下方向に実質的に均一に攪拌できるものであれば任意であり、例えば、特許第２６７７９４６号公報に記載されるような攪拌装置は特に有効に用いられる。
【００２７】
次に、上記の形式の穀物乾燥処理装置を用いて本発明による穀物乾燥処理方法を実施する場合の１例を図３〜図６を参照しながら説明する。この例では、荷受け形態は、Ａ，Ｂ，Ｃの３品種荷受けとし、３日間の連続に受けの後、１日間の荷受け休止日があるものとする。なお、ここでは、荷受け部からの穀物を投入エレベータＥ及びトップコンベアＴＣを介して列Ａの乾燥ユニットに投入し、そこで仕上げ乾燥まで行う場合について説明するが、同じ受け部からの穀物を列Ｂの乾燥ユニットにおいても同様に処理できることは明らかであり、説明は省略する。
【００２８】
１日目は、乾燥ビン６ビンの三分の一に当たる２ビン（Ａ１，Ａ２）に荷受けされた穀物（Ａ品種−含水率２４％）を均等に投入し、攪拌及び送風を行いながら乾燥処理を行う（図３ａ）。
２日目は、１日目の２ビン（Ａ１，Ａ２）（含水率２０．５％）での乾燥処理は継続すると共に、空いている乾燥ビン２ビン（Ａ３，Ａ４）に荷受けされた穀物（Ａ品種−含水率２４％）を均等に投入し、攪拌及び送風を行いながら乾燥処理を行う（図３ｂ）。
【００２９】
３日目は、１日目の２ビン（Ａ１，Ａ２）（含水率１７．５％）及び２日目の２ビン（Ａ３〜Ａ４）（含水率２０．５％）での乾燥処理は継続すると共に、空いている乾燥ビン２ビン（Ａ５，Ａ６）に荷受けされた穀物（Ａ品種−含水率２４％）を均等に投入し、攪拌及び送風を行いながら乾燥処理を行う（図３ｂ）。４日目は、荷受けのない日であり、１，２，３日に穀物を投入した６ビン（Ａ１〜Ａ６）はそのまま乾燥処理を継続する。もし、１日目の荷受け穀物（Ａ１，Ａ２ビン）が半乾水分（含水率１７％以下）まで乾燥していれば（３〜４日の送風乾燥処理で半乾水分まで乾燥するように、送風条件を設定するのか普通である）、この２ビンへの送風空気を遮断することで乾燥を停止し、時間的余裕があれば、Ａ１，Ａ２ビンの穀物を貯蔵ビンＡ７〜Ａ１２のいずれかに移動（ローテーション）する。
【００３０】
５日目は、Ａ品種の荷受け４日目であり、４日目に１日目の穀物を貯蔵ビンに移動していない場合には、荷受け開始直前に、１日目の穀物（Ａ１，Ａ２ビンの穀物）を貯蔵ビンＡ７〜Ａ１２のいずれか（この例ではＡ１２）に移動する。それにより空となった乾燥ビン（Ａ１，Ａ２）に５日目の荷受け穀物（含水率２４％）を均等に投入し、攪拌及び送風を行いながら乾燥処理を行う（図３ｄ）。
６日目以降は、貯蔵ビン（Ａ７〜Ａ１２）が満量となるまで、荷受けのある日は５日目と同じ運転を、荷受けのない日は４日目と同じ運転を行う。
【００３１】
図４ａは、Ａ品種の荷受けが終了し、Ｂ品種の１日目の荷受けを行った状態を示しており、貯蔵ビンＡ１２，Ａ１１は半乾水分まで乾燥したＡ品種で満量となっており、貯蔵ビンＡ１０もほぼ満量となっている。図４ｂは、Ｂ品種の２日目の荷受け状態を示しており、この時点では、乾燥ビンＡ５，Ａ６のみにＡ品種が残っている。図４ｃは、Ｂ品種の３日目の荷受け状態を示しており、この時点では、４つの貯蔵ビン（Ａ９〜Ａ１２）がＡ品種の穀物によって満量とされている。図４ｄは、Ｂ品種４日目の荷受け状態を示しており、この時点では、Ｂ品種１日目の荷受け分はすでに半乾水分までの乾燥状態となり、貯蔵ビンＡ８に移動している（図４ｄ）。
【００３２】
以下、Ｂ品種の荷受けを継続し、それが終了した時点で、Ｃ品種の荷受けが始まる。図５ａは、Ｃ品種１日目の荷受け状態を示しており、この例では、乾燥ビンＡ３〜Ａ６の４ビンに乾燥途中のＢ品種が残っていると共に、半乾水分以下となったＢ品種は、貯蔵ビンＡ８のすべてと、最後の貯蔵ビンであるビンＡ７の過半に貯留された状態となっている。
図５ｂは、Ｃ品種２日目の荷受け状態を示しており、半乾水分以下となったＢ品種最終前日荷受け分（Ａ３，Ａ４）が最後の貯蔵ビンＡ７に移されるが、全量が移動する前に貯蔵ビンＡ７は満量となり、その時点ですべての貯蔵ビン（Ａ７〜Ａ１２）は満量となる。そして、残りの半乾水分以下となったＢ品種最終前日荷受け分は、まだ未乾燥状態であるＢ品最終荷受け分（Ａ５，Ａ６）の上に移動されて、そこで、攪拌と乾燥を受ける。
【００３３】
図５ｃは、Ｃ品種３日目の荷受け状態を示しており、この時点で乾燥ビンＡ５，Ａ６内のＢ品種は半乾水分以下となっており、荷受け前に、いずれかの乾燥ビン（この例ではビンＡ６）にそれをまとめると共に、Ａ１〜Ａ４に投入されているＣ品種を空になった乾燥ビンＡ５も含めて均等な厚みとなるように移し替える。その後で、荷受けされた３日目のＣ品種を、乾燥ビンＡ１〜Ａ５に均等厚みに投入し、攪拌及び送風を行いながら乾燥処理を行う。
【００３４】
Ｃ品種の荷受け４日目は、荷受けした穀物を乾燥ビンＡ１〜Ａ５に均等厚みに投入し、攪拌及び送風を行いながら乾燥処理を行う（図５ｄ）。そのときに、乾燥ビンＡ６に貯蔵されたＢ品種は半乾水分以下となっているので、攪拌装置での攪拌は不要であり、荷受終了まで、通風を行わない半乾貯蔵とする。
Ｃ品種の荷受け５日目以降は、荷受け４日目の処理をＣ品種の荷受けが終了するまで（あるいは、乾燥ビン（Ａ１〜Ａ５）が満量となるまで）繰り返す（図５ｅ）。この乾燥ビン（Ａ１〜Ａ５）での乾燥処理態様を累積攪拌混合乾燥処理という。乾燥ビン（Ａ１〜Ａ５）内の穀物が半乾水分以下となった時点で攪拌装置の運転を停止し、荷受終了まで、通風を行わない半乾貯蔵とする。
【００３５】
以降は、すべてのビン、すなわち、乾燥ビンＡ１〜Ａ６及び貯蔵ビンＡ７〜Ａ１２に対して必要に応じて送風を行いながら、仕上げ水分まで乾燥させ、乾燥終了した穀物は、そのまま出荷時点まで貯蔵される。以下、従来の施設と同様に、処理済の穀物はボトムコンベアＢＣからビン投入エレベータＥに送られその上方部から切替え弁を介して調節タンク６に搬送され、以下穀物搬出部を順次通過して施設外に運ばれる。
【００３６】
上記の説明は、本発明による穀物乾燥処理方法の好適な実施の形態の説明であり、他に多くの態様を取ることができる。例えば、荷受け量や荷受け品種の数によっては、処理の途中で一部の乾燥ビン（例えば、上記の例における乾燥ビンＡ６）に乾燥ビンと貯蔵ビンと双方の機能を果たさせるような運転方法を取ることなく、すべての乾燥ビンＡ１〜Ａ６で同時に前記した累積攪拌混合乾燥処理に入るように運転することもできる。
また、１乾燥ユニットでの全ビン数をいくつにするか、その内のいくつに攪拌装置を備えるか、さらには、乾燥ユニットを何系列備えるか、などは当該施設の穀物の荷受け環境に応じて適宜設定されるものであり、図示のものはあくまでも例示にすぎない。
【００３７】
さらに、各ビンの容量に余裕がある場合には、前記図５ｅに示される状態、すなわち、すべての荷受け穀物が半乾水分までの乾燥終了した後に、５個の乾燥ビンＡ１〜Ａ５に投入されているＣ品種を、図６に示すように、４個の乾燥ビンＡ１〜Ａ４に移し替え、空きビンを確保してＣ品種とＡ、Ｂ品種を入れ替えて、Ａ、Ｂ品種の半乾籾を乾燥ビンで仕上げるとともに精選作業を行う。又は、空いたビンをローテーション用ビンとして利用して、従来法によるローテーションを行うことも可能である。
【００３８】
【発明の効果】
上記の説明からわかるように、本発明による穀物乾燥処理方法によれば、低コストでの設置及び運転が可能な穀物乾燥処理装置を用いながら、荷受け終了時にて、攪拌装置を取り付けたビン（乾燥ビン）とそれを有しないビン（貯蔵ビン）の全ビンに穀物を貯蔵可能であり、貯蔵効率を高くすることができる。また、いわゆるローテーション作業を行う必要はあるが、乾燥ビンから貯蔵ビン、あるいは、乾燥ビンから他の乾燥ビンへの一回のみで荷受け終了まで運転可能であり、大きな作業負担とならないと共に、同一系列内での移動であり自動運転が可能となる。また、ローテーションに伴う風量ロス、搬送に伴う動力消費が減少することからも、運転コストが低減する。
さらに、荷受け開始から荷受け後期での乾燥ビン内での累積攪拌混合乾燥処理を行うまでの期間は、複数品種の荷受けを行っても高積み乾燥を回避することができ、乾燥効率のよい乾燥となり、乾燥時間・運転コスト共に低減できる。
【００３９】
また、複数の乾燥ユニットを併設する場合でも、共通の荷受け部からすべての乾燥ユニットに直接投入可能であり、各乾燥ユニットではそのユニット内で荷受けから仕上げ乾燥終了まで自己完結させることができ、乾燥処理作業の省力化が図られる。
【図面の簡単な説明】
【図１】本発明による穀物乾燥処理方法を実施するのに好適な穀物乾燥処理装置の一例の概略説明図。
【図２】図１に示す装置の好ましいレイアウトを示す上面図。
【図３】本発明による穀物乾燥処理方法の一実施形態の説明に共される図。
【図４】本発明による穀物乾燥処理方法の一実施形態の説明に共される図。
【図５】本発明による穀物乾燥処理方法の一実施形態の説明に共される図。
【図６】本発明による穀物乾燥処理方法で処理された後の、穀物処理形態の一例を説明する図。
【図７】従来の穀物処理装置及び処理方法の説明に共される図。
【図８】従来の他の穀物処理装置及び処理方法の説明に共される図。
【符号の説明】
Ｅ…投入エレベータ、Ａ１〜Ａ６、Ｂ１〜Ｂ６…攪拌装置を備えたビン（乾燥ビン）、Ａ７〜Ａ１２、Ｂ７〜Ｂ１２…攪拌装置を備えないビン（貯蔵ビン）、ＴＣ…トップコンベア、ＢＣ…ボトムコンベア（投入用搬送機を構成する）、Ｐ…乾燥用空気送風ダクト、２０…空気調和装置、２１…送風機、１００…少なくとも上下方向に攪拌するための攪拌装置[0001]
[Industrial application fields]
INDUSTRIAL APPLICABILITY The present invention is an improved grain drying method, particularly suitable for performing from initial drying of grains to storage after finishing drying using a plurality of bins (square bins) having a common drying air blowing duct. The present invention relates to a method for drying grain.
[0002]
[Prior art]
For example, in the case of rice, the harvested rice that has been received is dried by thermal drying to a normal moisture content of 24% to 17% (note that 24% of this is 24% by the Ministry of Agriculture, Forestry and Fisheries) In addition, 17% is due to the fact that the Ministry of Agriculture, Forestry and Fisheries defines the storage within 35 days with no ventilation as 17% or less as the standard for safe primary storage for a short period of time. When it is referred to as “semi-dry moisture”, it is stored in the primary storage tank in the above meaning). The harvested rice that has been stored for the first time is then finish-dried to a specified moisture content of 16 to 14.5% or less by a finish heat drying process, weighed after selection, and stored in a silo.
[0003]
This thermal drying treatment method is a thermal drying process in which moisture is dried from 24% to 17% at a stretch. In some cases, the harvested rice may be overdried and cracked. Moreover, in order to heat, grain temperature rises and quality may fall.
As a solution to the disadvantages of thermal drying as described above, for example, Japanese Patent Application Laid-Open No. 3-122484 includes a large number of drying tanks, a large number of storage bottles, and a processing device such as a hulling machine. The dehumidified air supplied to the drying tank by supplying dehumidified air dehumidified with the air conditioner is dehumidified and dried, and the dried grains are stored in storage bins. Proposals have been made to ship after processing, such as bagging.
[0004]
This drying method eliminates the disadvantages of conventional thermal drying, but in order to eliminate drying unevenness in the drying tank, a replacement tank is provided separately from the drying tank, and the dehumidification is performed once in the drying tank. When the drying process is completed, the grain is transferred from one of the drying tanks to the rotation tank, the grains in the other drying tank are transferred to the empty drying tank, and the rotation tank is finally transferred to the empty drying tank. The so-called rotation work of transferring the cereals is carried out, the well-dried cereal in the lower layer and the poorly-dried cereal in the upper layer are mixed, and then dehumidified and dried again to make the moisture uniform.
[0005]
This processing facility requires a storage tank and a rotation tank in addition to the drying tank, which not only increases the cost of the facility, but also requires a large amount of rotation in a large facility with many drying tanks. The rotation capacity depends on the discharge capacity of wind from one bottle, but the discharge capacity in a normal drying treatment facility is 20-30 tons per hour, and it takes 2-3 hours to empty one 50-ton bottle. Become. For example, in the case of a facility having 10 bins, only one day is required for this rotation work.
[0006]
As one proposal for solving the inconvenience, as shown in FIG. 7, a large number of storage bins A (A1 to A10) and storage bins (for example, A1) in which grains are carried out of these storage bins A are empty. From a storage bin in which grains are carried in by sequentially specifying empty storage bins as arrival bins, including a transfer conveyor 10 for transferring to a storage bin (for example, A2), an input elevator 11, an input conveyor 12 and the like In the storage bins A (A1 to A10), the rotation instruction means for instructing transfer to an empty storage bin and the rotation control mechanism including an output unit for sequentially outputting operation commands to the replacement device are provided. There is known a processing facility that performs drying and necessary rotation and also stores it until shipment (see JP-A-5-79759). .
[0007]
In FIG. 7, 1 is a load receiving hopper for picking up grains, 2 is a load receiving lift, 4 is a coarse sorter, and 5 is a weighing machine. Grains received by the weighing machine 5 are fed every predetermined amount (for example, 300 kg). After being weighed, it is put into necessary holding bins by the loading elevator 11 and the loading conveyor 12. Grains stored after the necessary drying treatment are carried out from the take-out conveyor 10 as necessary, and from the discharge elevator 13, the adjustment tank 6, the hulling machine 7, the swing sorter 8, and the shipping tank. It is carried out of the system through the grain carrying-out part provided with 9.
[0008]
Unlike conventional facilities, this does not require the provision of a drying tank and storage bins, and does not require a special rotation tank. This reduces equipment costs and allows workers to relocate. There is an advantage that it is possible to perform processing without drying unevenness by a simple operation without needing to designate a bottle for brewing and a bottle for arriving each time.
[0009]
However, since the processing facility using this method moves grain during the drying process anyway, a storage bin for rotation is necessary, and an operator must monitor the entire system to monitor this. It is necessary to watch. Furthermore, if drying is performed at a high level in order to increase the storage efficiency, a difference in moisture may occur between the upper and lower sides, which may make finishing drying difficult.
As an improved grain drying apparatus having a large number of storage bins, Japanese Patent Application Laid-Open No. 7-103648 discloses that there is no drying unevenness even if grain rotation is not performed between storage bins as shown in FIG. A grain drying apparatus capable of performing a drying process has been proposed.
[0010]
In this grain drying processing apparatus, the receiving part and the grain carrying-out part may be the same as those shown in FIG. 7, and the received grain is weighed every predetermined amount and then passed from the bin loading elevator E via the top conveyor TC. Then, the same bins (A1 to A7 rows and B1 to B7 rows) are sequentially inserted with the same thickness. The lower part of each bottle row forms a supply path (drying air blowing duct) P of dehumidified air, and the supply path P is connected to a conventionally known air conditioner 20 and blower 21, and dehumidified air. Is supplied and is used to dry the grains in each bottle. Below the bin rows A1 to A7 and B1 to B7, a bottom conveyor BC is provided, and the processed grain is sent from the bottom conveyor BC to the bin charging elevator E, and an adjustment tank is formed from the upper portion thereof via a switching valve. 6 is then transported to the outside of the facility through the grain unloading section.
[0011]
The above configuration is substantially the same as the processing facility described above with reference to FIG. 7, but in this processing facility, the grains to be stored in each bin (A1 to A7 and B1 to B7) are at least vertically stirred. 7 is different from that shown in FIG.
In this grain drying processing apparatus, the grains in each storage bin are always subjected to at least vertical stirring by the stirring device, and the dehumidification air is supplied without performing so-called rotation work as in the conventional drying processing facility. The desired drying process can be completed without causing uneven drying of the grains in the bottle during the drying process. Moreover, it is possible to store the grain after the drying process in the bin as it is, and it is possible to eliminate idle bins, thereby reducing the overall cost of facilities and maintenance.
[0012]
[Problems to be solved by the invention]
As described above, a drying processing apparatus having a storage bin equipped with a stirring device has many advantages. However, in a processing facility equipped with a large number of bins, all the bins are equipped with a stirring device. As the installation cost of the facility increases and the amount of power for driving the stirring device increases, the operation cost of the facility must be increased.
[0013]
In addition, it is the most efficient operation to perform drying by ventilation with grains piled up at the same height in all bins, but in normal processing facilities, multiple varieties with different receiving periods are received. For this reason, bins having different deposition heights tend to be generated in the same series of drying units, and there may occur bins in which a safe air volume ratio cannot be ensured. For this reason, much of the drying time tends to be high-pile drying with a small number of bins, and the grain resistance during blowing increases, and there is a possibility that the amount of air generated by the blower decreases and the drying efficiency decreases. .
[0014]
The object of the present invention is to eliminate the above-mentioned disadvantages of a drying treatment facility having a storage bottle equipped with a stirring device. More specifically, both the installation cost and the operation cost of the grain drying treatment facility are reduced. It is an object of the present invention to provide a grain drying method that can reduce both the volumetric efficiency of the bottle and the drying efficiency by air blowing while reducing the work load of the operator.
[0015]
[Means for Solving the Problems]
In the grain drying processing method of the present invention, the drying processing apparatus basically includes a plurality of bins configured to share the feeding conveyor and the drying air blowing duct. A drying unit is used which is configured with an agitator for agitating the grains in the bottle at least in the vertical direction and an original having no agitation device.
[0016]
In the present invention, the received grain is put into a bottle equipped with the stirring device by a loading transporter, where it is dried to semi-dry moisture that can be stored semi-dried while performing necessary stirring by the stirring device. The process of transferring the semi-dried cereal to the bottle without the stirring device by using the feeding conveyor is repeated until the bottle without the stirring device becomes full. The semi-dried grain stored in a bottle without a stirring device is semi-dry stored without ventilation until the end of receipt of goods, and is stored as it is until shipment.
[0017]
After the bottle without the stirrer is full, the received grain is sequentially put into the bin with the stirrer by the feeding transporter, and the necessary moisture is added to the finished moisture by the stirrer there. To dry. The dried grain is then stored as it is until shipment.
In another aspect of the grain drying treatment method according to the present invention, the process is repeated until the bottle without the stirring device becomes full in the same manner as described above, and after the bottle without the stirring device becomes full, The received grain is put into a bottle equipped with the stirring device by a feeding conveyor, and then dried to a semi-dry moisture that can be stored semi-dried while performing the necessary stirring with the stirring device. The process of accumulating in a part of the bins equipped with the stirring device is repeated until the part of the bins is full. The semi-dried grain that has expired is then dried to finish moisture, and the dried grain is stored as it is until shipment.
[0018]
After some bottles equipped with a stirrer that piles up the grains dried to the semi-dry moisture are filled, the remaining grains are sequentially fed into the bins equipped with the stirrer by the feeding conveyor. Then, a process of drying to the final moisture is performed while performing necessary stirring with the stirring device, and the dried grain is stored as it is until the time of shipment.
[0019]
In the grain drying processing method according to the present invention, as a processing facility, a plurality of bins in one drying unit are attached with a stirring device for stirring grains in the bin at least in the vertical direction, and the processing facility does not have it. Therefore, it is possible to reduce various expenses related to the installation of the stirring device as compared with the conventional facility, and the installation cost of the entire facility is reduced. In addition, the operating cost is reduced because the number of the stirring devices is small.
[0020]
According to the grain drying method according to the present invention, the grain is dried by a processing facility equipped with a stirring device in all the bottles while using the processing facility that can be installed and operated at a low cost as described above. Grains can be dried with equivalent or higher drying efficiency.
[0021]
That is, at the end of receiving the cargo, the grain can be stored in all the bins including the bin (drying bin) equipped with the stirring device and the bin (storage bin) not having the stirring device, and the storage efficiency can be increased. Although it is necessary to perform so-called rotation work, it can be operated from the drying bin to the receiving bin, or from the drying bin to another drying bin only once until the end of receiving the load. And automatic operation is possible. In addition, the operating cost is reduced because the airflow loss associated with the rotation and the power consumption associated with the conveyance are reduced.
[0022]
Furthermore, the period from the start of receiving to the cumulative stirring mixed drying process in the drying bottle in the late stage of receiving, that is, the process of sequentially loading the receiving grains and drying to the finished moisture while performing the required stirring with the stirring device Can avoid high-loading drying even when receiving multiple types of goods, resulting in efficient drying, and reducing both drying time and operating costs.
The present invention further has a plurality of drying units as described above, and has a common receiving part for each drying unit series, and the grains input from the receiving part to each drying unit series are described above in the drying unit series. Also disclosed is a grain drying treatment method characterized in that the grain drying treatment method is performed until finish drying.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described. First, based on FIG.1 and FIG.2, an example of a processing facility suitable for implementing the grain drying processing method by this invention is demonstrated.
The grain drying processing apparatus shown in the figure is basically the same as the grain drying processing apparatus described above with reference to FIG. 8, but the stirring device 100 is not attached to all of the plurality of bottles. The plurality of bins constituting one drying unit differ only in that it is configured with an original device that does not have a stirring device for stirring grains in the bin at least in the vertical direction. ing. Therefore, in FIG. 1, the load receiving portion and the grain carrying-out portion shown in FIG. 8 are omitted, and members having the same functions are denoted by the same reference numerals, and detailed description is not given.
[0024]
As shown in FIGS. 1 and 2, in the grain drying apparatus, square bins A1 to A12 and B1 to B12 are arranged close to each other in two rows. In FIG. 2 of the bin group consisting of row A and row B, the respective members constituting the above-described load receiving portion and grain unloading portion are arranged near the right side (hereinafter referred to as the front side for convenience), and the left side (hereinafter referred to as the rear side for convenience). The air conditioner 20 and the blower 21 described above are arranged in the vicinity of each column.
[0025]
As shown in FIG. 2, one input elevator E is arranged at a position between the row A and the row B on the front side of the bin group, and further, at an intermediate position between the rows A and B. One top conveyor TC is disposed above the upper end of the bin. The front end (upstream end) of the top conveyor TC is positioned below the upper discharge port of the input elevator E. This top conveyor TC constitutes a part of the loading conveyor referred to in the present invention. As shown in FIG. 1, a bottom conveyor BC is provided at a position below the lower end of the bin, and its front end (feed downstream end) is located in the vicinity of the grain input port of the input elevator E.
[0026]
The top conveyor TC is provided with grain inlets TC1... With opening / closing valves corresponding to the respective bins A1 to A12 and B1 to B12, and the grain outlet 8. It is arranged at a position close to the bottom conveyor BC. These openings are opened and closed through an appropriate control mechanism.
In this embodiment, among the bins A1 to A12 and B1 to B12, the agitators 100 are attached to the bins A1 to A6 and B1 to B6 (this bottle is referred to as a dry bottle), and A7 to A12 and B7 to B7. It is not attached to B12 (this bin is called a storage bin). The stirrer 100 is arbitrary as long as it can stir the grains in the storage tank substantially uniformly in the vertical direction. For example, a stirrer described in Japanese Patent No. 2767946 is used particularly effectively. .
[0027]
Next, an example in which the grain drying processing method according to the present invention is carried out using the grain drying processing apparatus of the above type will be described with reference to FIGS. In this example, it is assumed that the form of receiving the goods is A, B, and C, which are three kinds of goods received, and after receiving for 3 consecutive days, there is a day of receiving the goods. Here, a case will be described in which the grain from the load receiving part is fed into the drying unit of the row A through the input elevator E and the top conveyor TC, and then the drying is performed up to the finishing unit. It is obvious that the same processing can be performed in the drying unit, and the description thereof will be omitted.
[0028]
On the first day, the grain (A variety-24% moisture content) received in 2 bottles (A1, A2), which is one third of 6 bottles, is evenly charged and dried while stirring and blowing. (FIG. 3a).
On the second day, the drying process in the two bins (A1, A2) (water content 20.5%) on the first day is continued and the grains received in the empty two bins (A3, A4) are received. (A variety-water content 24%) is added uniformly, and a drying process is performed while stirring and blowing (FIG. 3b).
[0029]
On the third day, the drying treatment in 2 bottles (A1, A2) (water content 17.5%) on the first day and 2 bottles (A3 to A4) (water content 20.5%) on the second day is continued. At the same time, the cereal grains (A variety—water content 24%) received in two empty bins (A5, A6) are evenly charged and a drying process is performed while stirring and blowing (FIG. 3b). The fourth day is a day when there is no receipt of goods, and the 6 bottles (A1 to A6) into which the grains are put on the first, second and third days continue the drying process as they are. If the receiving grain (A1, A2 bottle) on the first day is dried to semi-dry moisture (moisture content of 17% or less) (so that it is dried to half-dry moisture in the blast drying process for 3-4 days, It is normal to set the blowing conditions), and by stopping the blowing air to the two bins, drying is stopped, and if there is enough time, the grains in the A1 and A2 bins are stored in any of the storage bins A7 to A12 Move (rotate).
[0030]
The 5th day is the 4th day of receiving the varieties of A, and if the 1st day grain is not transferred to the storage bin on the 4th day, the first day grain (A1, A2) The grain of the bin) is moved to one of the storage bins A7 to A12 (A12 in this example). As a result, the dried cereals (A1, A2) emptied are uniformly charged with the receiving grain (water content 24%) on the fifth day, and the drying process is performed while stirring and blowing (FIG. 3d).
After the sixth day, until the storage bins (A7 to A12) are full, the same operation as the fifth day is performed on the day when the cargo is received, and the same operation as the fourth day is performed on the day when there is no cargo.
[0031]
FIG. 4a shows a state in which the receipt of the A type is completed and the first day of the B type is received, and the storage bins A12 and A11 are full of the A type that has been dried to semi-dry moisture. The storage bin A10 is almost full. FIG. 4b shows the state of receiving the second day of the B type, and at this time, the A type remains only in the dry bottles A5 and A6. FIG. 4c shows the condition of receiving the third day of the B variety, and at this point, the four storage bins (A9 to A12) are filled with the A variety of grains. FIG. 4d shows the state of receiving the goods on the 4th day of the B type, and at this time, the receiving part on the 1st day of the B type is already in a dry state up to the semi-dry moisture and moved to the storage bin A8 (FIG. 4). 4d).
[0032]
Thereafter, the receiving of the B type is continued, and when it is finished, the receiving of the C type starts. FIG. 5a shows the state of receiving the first day of the C type. In this example, the B type that is in the middle of drying remains in the four bins A3 to A6, and the B type is less than half dry moisture. Are stored in all of the storage bin A8 and the majority of the last storage bin A7.
FIG. 5b shows the state of receipt of the second day of the C type. The last day of the B type (A3, A4) that has become semi-dry moisture or less is transferred to the last storage bin A7, but the entire amount is transferred. Before storage bin A7 is full, at that point all storage bins (A7-A12) are full. Then, the last B-type last-day cargo receiving amount that has become the remaining semi-dry moisture or less is moved onto the B-product final cargo receiving portion (A5, A6) that is still undried, where it is subjected to stirring and drying.
[0033]
FIG. 5c shows the state of receiving the goods on the third day of the C type. At this time, the B type in the dry bottles A5 and A6 is less than semi-dry moisture, and any of the dry bottles (this In the example, it is collected in the bin A6), and the C type introduced in A1 to A4 is transferred to a uniform thickness including the empty dry bin A5. Thereafter, the C-type of the third day received is put into the drying bottles A1 to A5 with a uniform thickness, and a drying process is performed while stirring and blowing.
[0034]
On the fourth day of receiving the C varieties, the received grains are put into the drying bottles A1 to A5 with a uniform thickness, and a drying process is performed while stirring and blowing air (FIG. 5d). At that time, since the B type stored in the drying bottle A6 has a semi-dry moisture or less, the stirring by the stirring device is unnecessary, and the semi-dry storage without ventilation is performed until the end of receiving the goods.
After the 5th day of receiving the C product, the process on the 4th day of receiving is repeated until the receiving of the C product is completed (or until the drying bottles (A1 to A5) are full) (FIG. 5e). This drying processing mode in the drying bottles (A1 to A5) is referred to as cumulative stirring mixed drying processing. When the grains in the drying bottles (A1 to A5) become semi-dry moisture or less, the operation of the stirrer is stopped, and the semi-dry storage without ventilation is performed until the end of receiving the goods.
[0035]
Thereafter, all the bottles, that is, the drying bottles A1 to A6 and the storage bottles A7 to A12 are blown as necessary, dried to finish moisture, and the dried grains are stored as they are until shipment. The Hereinafter, as in the conventional facility, the processed grain is sent from the bottom conveyor BC to the bin input elevator E and conveyed from the upper part thereof to the adjustment tank 6 via the switching valve, and then sequentially passes through the grain unloading part. Carried outside the facility.
[0036]
The above description is a description of a preferred embodiment of the grain drying method according to the present invention, and many other aspects can be taken. For example, depending on the amount of goods received and the number of goods received, an operation method in which some drying bottles (for example, drying bottle A6 in the above example) perform the functions of both the drying bottle and the storage bottle during the process. It is also possible to operate so that all of the drying bottles A1 to A6 enter the above-mentioned cumulative stirring and mixing drying process without taking the above.
The number of bottles in one drying unit, how many of them are equipped with a stirrer, how many drying units are provided, etc. depend on the grain receiving environment of the facility. It is set as appropriate, and the illustrated one is merely an example.
[0037]
Further, when the capacity of each bin is sufficient, the state shown in FIG. 5e, that is, after all the receiving grain has been dried to the semi-dry moisture, is put into the five drying bins A1 to A5. As shown in FIG. 6, the C varieties are transferred to four dry bins A1 to A4, the empty bins are secured, the C varieties are replaced with the A and B varieties, and the A and B varieties are semi-dried. Is finished with a dry bottle and carefully selected. Alternatively, it is possible to perform rotation by a conventional method using a free bin as a rotation bin.
[0038]
【The invention's effect】
As can be seen from the above description, according to the grain drying processing method of the present invention, a bottle (drying machine) equipped with a stirring device is used at the end of receiving the cargo while using a grain drying processing apparatus that can be installed and operated at low cost. Grains can be stored in all bins (bins) and bins that do not have them (storage bins), and storage efficiency can be increased. Although it is necessary to perform so-called rotation work, it can be operated from the drying bottle to the storage bottle or from the drying bottle to other drying bottles only once until the end of receiving the goods, and it does not cause a heavy work load and is the same series. And automatic operation is possible. In addition, the operating cost is reduced because the airflow loss associated with the rotation and the power consumption associated with the conveyance are reduced.
Furthermore, during the period from the start of receiving the cargo to the cumulative stirring and mixing drying process in the drying bottle at the later stage of receiving the cargo, even if multiple types of cargo are received, high-load drying can be avoided, resulting in drying with good drying efficiency. Both drying time and operating costs can be reduced.
[0039]
In addition, even when multiple drying units are installed, it is possible to directly input all the drying units from a common load receiving part. Each drying unit can be self-contained from the receiving to the end of finish drying in that unit. Labor saving of processing work is achieved.
[Brief description of the drawings]
FIG. 1 is a schematic explanatory diagram of an example of a grain drying processing apparatus suitable for carrying out a grain drying processing method according to the present invention.
FIG. 2 is a top view showing a preferred layout of the apparatus shown in FIG.
FIG. 3 is a diagram used for explaining an embodiment of a grain drying method according to the present invention.
FIG. 4 is a diagram used for explaining an embodiment of a grain drying method according to the present invention.
FIG. 5 is a diagram used for explaining an embodiment of a grain drying method according to the present invention.
FIG. 6 is a diagram for explaining an example of a grain processing form after being processed by the grain drying processing method according to the present invention.
FIG. 7 is a diagram used for explanation of a conventional grain processing apparatus and processing method.
FIG. 8 is a diagram used for explanation of another conventional grain processing apparatus and processing method.
[Explanation of symbols]
E ... Elevator, A1-A6, B1-B6 ... Bins equipped with stirring device (drying bottles), A7-A12, B7-B12 ... Bins without storage device (storage bins), TC ... Top conveyor, BC ... Bottom conveyor (which constitutes a loading transporter), P ... Air blowing duct for drying, 20 ... Air conditioner, 21 ... Air blower, 100 ... Stirring device for stirring at least in the vertical direction

Claims

A plurality of bins are provided so as to share a feeding conveyor and a drying air blowing duct, and the plurality of bins are provided with a stirring device for stirring the grains in the bins at least in the vertical direction. And a grain drying treatment method in a drying unit composed of the original and the original having no
The received grain is put into a bottle equipped with a stirrer by a feeding transporter, and then dried to a semi-dry moisture or finish moisture that can be stored semi-dried while performing the necessary stirring with the stirrer, and then the semi-dried Repeat the process of transferring the grains to the bottle without the stirring device using the feeding conveyor until the bottle without the stirring device is full, and after the bottle without the stirring device is full A grain drying method comprising: sequentially loading received grain into a bottle equipped with the agitating device using an input conveyance machine and drying to a final moisture while performing the necessary agitation with the agitating device.

A plurality of bins are provided so as to share a feeding conveyor and a drying air blowing duct, and the plurality of bins are provided with a stirring device for stirring the grains in the bins at least in the vertical direction. And a grain drying treatment method in a drying unit composed of the original and the original having no
The received grain is put into a bottle equipped with a stirrer by a feeding transporter, and then dried to a semi-dry moisture or finish moisture that can be stored semi-dried while performing the necessary stirring with the stirrer, and then the semi-dried Repeat the process of transferring the grains to the bottle without the stirring device using the feeding conveyor until the bottle without the stirring device is full, and after the bottle without the stirring device is full Then, the received grain is put into a bottle equipped with the stirring device by a feeding conveyor, and then dried to semi-dry moisture that can be stored semi-dried while performing necessary stirring with the stirring device, and then the semi-dried grain Is repeated until a part of the bottles are full.
After some bottles equipped with a stirrer that piles up the grains dried to the semi-dry moisture are filled, the remaining grains are sequentially fed into the bins equipped with the stirrer by the feeding conveyor. Then, the grain drying treatment method is characterized in that the drying is performed to the final moisture while performing the necessary stirring with the stirring device.

The drying unit according to claim 1 or 2 has a plurality of drying units, each of the drying unit series has a common receiving part, and the grains put into the drying unit series from the receiving part are in the drying unit series. A grain drying treatment method, wherein the grain drying treatment method is performed until finish drying by the grain drying treatment method according to 1 or 2.