JPH02233986A - Operation control method for grain conveying equipment of circulating system in circulation type grain dryer - Google Patents

Operation control method for grain conveying equipment of circulating system in circulation type grain dryer

Info

Publication number
JPH02233986A
JPH02233986A JP5148489A JP5148489A JPH02233986A JP H02233986 A JPH02233986 A JP H02233986A JP 5148489 A JP5148489 A JP 5148489A JP 5148489 A JP5148489 A JP 5148489A JP H02233986 A JPH02233986 A JP H02233986A
Authority
JP
Japan
Prior art keywords
grain
drum shutter
conveying equipment
drying
dryer
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.)
Pending
Application number
JP5148489A
Other languages
Japanese (ja)
Inventor
Soichi Yamamoto
惣一 山本
Kazuyuki Kojo
和幸 古城
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamamoto Manufacturing Co Ltd
Original Assignee
Yamamoto Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yamamoto Manufacturing Co Ltd filed Critical Yamamoto Manufacturing Co Ltd
Priority to JP5148489A priority Critical patent/JPH02233986A/en
Publication of JPH02233986A publication Critical patent/JPH02233986A/en
Pending legal-status Critical Current

Links

Landscapes

  • Drying Of Solid Materials (AREA)

Abstract

PURPOSE:To prevent erosion and damages of a grain conveying equipment by a method wherein the grain conveying equipment is brought in an intermittent operation synchronizing with the action of a drum shutter, which is mounted on a shaft at the end of a grain flow path of a dryer, during only a certain period in each circulation, drying and discharging operation. CONSTITUTION:To load grain to be dried in a storage 'a' in a dryer 1, a drum shutter 14 is stopped, and a grain conveying equipment of a circulation system is brought in operation. When drying process is started after loading the grain, the drum shutter 4 and the grain conveying equipment are put in operation, a hot air generating equipment 'c' is stated with only a fan normally operated and a burner operated at an extreme low capacity or completely stopped. Thereby, the drum shutter 14 is brought in such an intermittent action that the drum shutter 14 is alternately turned in normal and reverse direction for a revolution each at specified intervals, and the conveying equipment is also brought in an intermittent operation synchronizing with the action of the drum shutter 14. Therefore, the grain conveying equipment is operated only while the conveying equipment treats the grain discharged from the drum shutter 14.

Description

【発明の詳細な説明】 本発明は、機体内の貯留部に張込んだ穀粒を、間欠的に
回動するドラムシャッターの作動により、乾燥部の穀粒
流下路に間欠的に流下させて穀粒流下路に送給する乾燥
風を浴びせることで乾燥させる循環型穀粒乾燥機におけ
る循環系の穀粒搬送装置の運転制御方法に関する. さらに具体的に言えば,第1図および第2図に示してい
る如く、箱状に形成した機体l内の上半側に、乾燥すべ
き穀粒を張込む貯留部aが装設してあり、機体1内の下
半側には、前記貯留部aと連続する穀粒の流下路10と
乾燥風の導風路l1と排風路12との三者を、通気性の
隔壁13により仕切って並列した乾燥部b.が装設され
、該乾燥部bの穀粒の流下路lOの下端には、一定量づ
つの穀粒の繰出しと流下路10の遮閉とを行なうドラム
シャッター14が装架され,それの下方に穀粒を機外に
搬出する下部コンベア15を具備し,機体1の前面には
穀粒の張込用の昇降機2(パケットエレベーター)が立
設され、それの揚穀塔20の下端部が前記下部コンベア
l5の終端側に接続連通し,その昇降I12の上端側の
吐出筒部が機体lの頂部に装架せる張込用の上部コンベ
アl6の始端側に接続連通してあって,ドラムシャッタ
ー14の作動を停止した状態で昇降Ia2および上部コ
ンベア16等の穀粒の搬送装置を作動させることにより
機体l内の貯留部aに乾燥すべき穀粒を所定量張込み,
その張込みを終えたところで,ドラムシャッター14と
下部コンベアl5および昇liI機2ならびに上部コン
ベア16等の穀粒搬送装置を作動させて穀粒を循環させ
、穀粒の流下路10を流過する穀粒に導風路1lから乾
燥風を供給して乾燥させる形態の循環型穀粒乾燥機Aに
おいて、それの前記下部コンベア15および昇降機2な
らびに上部コンベア16らの,循環系の穀粒搬送装置の
運転制御手段についての改良に関するこの形態の循環型
穀粒乾燥機Aは,圃場においてコンバイン等の収穫機に
より収穫した水分の多い穀粒を乾燥させるために開発さ
れたもので、ドラムシャッターl4と下部コンベア15
および昇降機2ならびに上部コンベアl6らの循環系の
穀粒搬送装置を作動させて、穀粒を循環流動させなから
穀粒の流下路10に乾燥.風を送給して乾燥させる乾燥
作業を行なう際に,乾燥効率である乾減率を高くするた
め.乾燥風を所望の温度の熱風に昇温させ得るよう、バ
ーナー装置と送風機とを組合せた熱風生成装置Cを具備
していて、通常の乾燥作業の際は、バーナー装置の作動
で生成した熱風を乾燥風として穀粒の流下路lOを流過
してい〈穀粒に送給するようにしている. そして、この熱風たる乾燥風を浴びる穀粒の流下路10
内の穀粒は、熱風を浴びる時間が長いと変質を来たし、
短いと熱の供給量に不足を来たすことから,ドラムシャ
ッター14の回転作動を,通常、約30秒ごとに一回宛
回転する程度の間欠作動を行なうよう制御しておいて、
穀粒が流下路lO内を略一定の時間で流過していくよう
にしている. ところで、穀粒の乾燥には、上述の循環型穀粒乾燥機A
により熱風を乾燥風として供給することで行なう乾減率
を毎時略0.7〜1%程度とした乾燥が.米の品質や食
味を低下させていることから,自然風の通風または掻く
低い温度の熱風の供給により、乾g率を毎時約0.1%
として行なう低い乾減率の乾燥手段が見直されてぎてい
る.そして、この低い乾減率で乾燥するため、上述の循
環型穀粒乾燥機Aを、それの熱風生成装置のバーナー装
置の作動を停止して送風機だけを作動させるか,バーナ
ー装置の作動を極く低く抑えた状態としておいて、ドラ
ムシャッター14および循環系の殼粒搬送装置を作動さ
せ、それにより乾燥部bの穀粒の流下路10に循環して
くる穀粒に対し、極く低温の熱風または自然.風を送給
するようにして、穀粒を乾燥させることが行なわれてき
ている. しかし,このように上述の循環型穀粒乾燥機Aを運転し
て低い乾減率で穀粒の乾燥を行なう場合,穀粒の流下路
10を流過する穀粒に対する熱量の供給が不足気味とな
ることで,間欠作動さすドラムシャッター14の駆動の
制御を、例えば、5.分間程度に一回宛回転するよう、
通常乾燥の際よりも遥かに長いインターバルに設定して
、穀粒の流下路10を穀粒が流過する時間を長くしてお
くようにしている. ところが、このようにドラムシャッター14の間欠作動
のインターバルを長く設定して循環型穀粒乾燥機Aを運
転し,穀粒を低乾減率で乾燥させるようにすると,乾燥
行程が終了するまでに要する時間が長くなることで、ラ
ンニングコストが増大し、また,機体1の各作動部の摩
耗●損傷が早まってくる問題がある. 本発明は、この問題を解消せしめるためになされたもの
であって、循環型穀粒乾燥機により低乾減率で穀粒の乾
燥を行なう際の,ランニングコストの増大を低く抑え,
また各作動部の摩耗・損傷を低減せしめて循環型穀粒乾
燥機を運転せしめ得るようにする運転制御手段を提起す
るものであるそして、本発明においては、この目的を達
成するための手段として循環型穀粒乾燥機の循環系の穀
粒搬送装置を、循環●乾燥●排出の各作業のうちの少な
くとも一作業時に,乾燥部の穀粒の流下路の下端に軸架
して間欠作動.さすドラムシャッターと同期して間欠作
動さすよう制御することを特徴とする循環型穀粒乾燥機
における循環系の穀粒搬送装置の運転制御方法を提起す
るものである.次に実施例を図面に従い詳述する.なお
図面符号は同効の構成部材については従前手段のものと
同一の符号を用いるものとする. 第3図は本発明法の実施に用いる循環型穀粒乾燥機Aの
一部破断した側面図で,同図において、1は箱状に形成
した機体,aは機体l内腔の上半側に形成した貯留部、
bは機体l内腔の下半側に穀粒の流下路10と乾燥風の
導風路11と排風路l2との三者を通気性の隔壁13で
仕切って並列させることで装設した乾燥部、14は乾燥
部bの穀粒の流下路lOの下端に装設したドラムシャッ
ター、15は機体l内腔の底部に装設せる下部コンベア
,2は機体lの外面に沿い立設した昇降機、l6は上部
コンベア、Cはバーナー装置と送風機とよりなる熱風生
成装置であり、これらは、従前手段のものと変わりなく
構成してある.そして,ドラムシャッターl4は、モー
ターM1により駆動され、また,下部コンベアl5およ
び昇降機2はモーターM2により駆動され,上部コンベ
アl6はモーターM3により駆動されるようにしてあり
、それらモーターの作動の制御は,機体lの前面に装設
せるコントロールボックスd内の制御装置により行なわ
れている.また、熱風生成装置Cのバーナー装置は,乾
燥風を導風路1lを介して穀粒の流下路10に送給させ
る送風機の作動と無関係に作動の制御が行なわれるよう
にしてある. しかして、ドラムシャッター14の間欠作動の駆動の制
御は,第4図に示している状態から同図において矢印A
に示している反時計方向の360度の回転と、その状態
位置から同図において矢印Bに示している時計方向の3
60度の回転とが,所定のインターバルをおいて交互に
繰返されるように、モーターMlの駆動回路のオン●オ
フおよび回転方向の切替えが行なわれるようにしてある
.そして、そのインターバルは,ドラムシャッター14
の一回転に要する時間が約10秒であることから,第5
図の行程図にあるように、実際にドラムシャッターl4
が停止しているインターバルを4分50秒にとって,5
分ごとに一回の回転が行なわれるように設定してある. また、下部コンベアl5および昇降機2ならびに上部コ
ンベア16等の循環系の穀粒搬送装置は,従前にあって
は、連続して常時作動するように制御されていたが、前
記第5図の下櫃に示している如く、ドラムシャッター1
4の間欠作動に合わせで作動と停止とが所定のインター
バルをおいて繰返すよう制御せしめてある.即ち、約3
0秒の作動ののち約4分30秒の停止を行ない、これを
繰返すようにすることで、ドラムシャッター14の間欠
作動に同期して5分ごとに作動する間欠作動が行なわれ
るように,駆動モーターの駆動回転をオン●オフするよ
う制御回路を設定してある.しかし、この下部コンベア
l5および昇降機2ならびに上部コンベアl6らの循環
系の穀粒搬送装置の間欠作動とドラムシャッター14の
間欠作動との同期は、完全な同期では.なく、その循環
系の穀粒搬送装置の始動、特に昇降機2が始動してから
確実な揚穀作動を行なう状態となるまでに数秒の時間を
要することから、数秒のタイムラグをもって,ドラムシ
ャッターl4の作動時期より先行するように設定してあ
る.また,その穀粒搬送装置の作動時間を約30秒と、
ドラムシャッターl4の作動時間よりも長くしているの
は、ドラムシャッターl4が一回転する作動で,その穀
粒搬送装置の下部コンベア15に繰出された穀粒を、そ
の穀粒搬送装置が機体l内の貯留部a内にまで送穀処理
するのに時間を要するからであり、この作動時間は,ド
ラムシャッターl4の一回の作動で繰出される穀粒を送
穀処理し得るのに要する時間であり,穀粒搬送装置の送
穀能力に対応させて適宜の時間に設定してよい. なお,このドラムシャッターl4の間欠作動に同期させ
て行なわす循環系の穀粒搬送装置の間欠作動は.低乾減
率の乾燥を行なうためのものであり、通常乾燥である高
乾減率の乾燥を行なう際には、同期した間欠作動を解除
し、通常の連続した常時運転の状態に戻せるように、制
御装置を構成する.また、循環系の穀粒搬送装置は,昇
降機2を放出筒部において放出する穀粒が貯留部aにダ
イレクトに投込まれていく投込型に形成して、下部コン
ベア16と昇降機2とで形成した上部コンベアl6を省
略した形態とする場合がある.次に本発明手段の作用に
ついて説明する.乾燥すべき穀粒の機体l内の貯留部a
に対する張込みは、従前手段と同様であり、ドラムシャ
ッターl4の作動を停止して、循環系の穀粒搬送装置を
作動さすことで行なう. 穀粒の張込みを終えて,乾燥行程に入るときはドラムシ
ャッター14および穀粒搬送装置を作動させ,また熱風
生成装置Cは、それのバーナー装置の作動を極〈低く抑
えるか停止させた状態として送風機だけが通常の作動を
行なうようにするこれにより、ドラムシャ−2ター14
は前述した如く、所定のインターバルをおいて正逆に交
互に切換わって一回転する間欠作動を行ない、また、循
環系の穀粒搬送装置も、これに同期して、間欠作動する
ようになる. そして,このときのドラムシャッター14の間欠作動と
,これに同期する穀粒搬送装置の間欠作動とは、前述の
例示した設定数値についていえばドラムシャッターl4
においては,インターバルが5分間と従前の約30秒に
比して約10倍になっていることで、それに対応して,
乾燥部bの流下路10を穀粒が流過する時間を長くする
ことにより、穀粒に低温の熱風または自然風を充分に浴
びることになって、低乾減率の乾燥が効率的に行なわれ
るようにする. また,穀粒搬送装置の間欠作動においては,30秒の作
動後に4分30秒の休止期間が存在することになり、そ
の30秒の作動時間が,従前の連続運転の際の.30秒
ごとに間欠作動するドラムシャッターl4の作動ごとで
区切った時間に対応するので、一度のドラムシャッター
14の作動で繰出された穀粒を搬送するための作動時間
として見れば、従前の連&!運転を行,なっていた場合
と変わらないことになる. 従って,循環系の穀粒搬送装置は,間欠作動するドラム
シャッター14から繰出された穀粒を送穀処理する間だ
け作動し、その送穀処理を終えて空運転となる間が休止
期間となるようになる.以上説明したように本発明手段
は、循環型穀粒乾燥機の循環系の穀粒搬送装置を、循環
●乾燥●排出の各作業のうちの少なくとも一作業時に,
乾燥部の穀粒の流下路の下端に軸架して間欠作動さすド
ラ・ムシャッターと同期して間欠作動さすよう制御する
のであるから,低乾減率での乾燥に対応させて、間欠作
動するドラムシャッター14のインターバルを長く設定
することにより、乾燥行程の全体の時間が長くなっても
、循環系の穀粒搬送装置の実質の運転時間が,それほど
長くならず、その穀粒搬送装置の摩耗および損傷の発生
を効果的に抑えられるようになる.
DETAILED DESCRIPTION OF THE INVENTION The present invention allows the grains loaded in the storage section in the machine body to intermittently flow down into the grain flow path of the drying section by operating a drum shutter that rotates intermittently. This article relates to a method for controlling the operation of a circulating grain conveying device in a circulating grain dryer that dries grain by blowing drying air into the grain flow path. More specifically, as shown in Figures 1 and 2, a storage part a for storing grains to be dried is installed in the upper half of the box-shaped machine body l. In the lower half of the body 1, a grain flow path 10, a dry air guide path l1, and an air exhaust path 12, which are continuous with the storage section a, are separated by an air-permeable partition wall 13. Drying section separated and arranged in parallel b. A drum shutter 14 is installed at the lower end of the grain flow path 10 of the drying section b, which feeds out a fixed amount of grains at a time and closes the flow path 10. The machine is equipped with a lower conveyor 15 for transporting grains out of the machine, and an elevator 2 (packet elevator) for loading grains is installed on the front of the machine body 1, and the lower end of the grain lifting tower 20 is installed in the front of the machine body 1. It is connected and communicated with the terminal end side of the lower conveyor l5, and the discharge cylinder part on the upper end side of the elevating/lowering I12 is connected and communicated with the starting end side of the upper conveyor l6 for tensioning mounted on the top of the machine body l. With the operation of the shutter 14 stopped, a predetermined amount of grains to be dried is loaded into the storage section a in the machine body l by operating the grain conveying devices such as the elevator Ia2 and the upper conveyor 16.
When the tensioning is finished, the grain conveying devices such as the drum shutter 14, the lower conveyor 15, the elevator machine 2, and the upper conveyor 16 are operated to circulate the grains and allow them to flow through the grain flow path 10. In a circulating grain dryer A configured to dry grain by supplying drying air from an air guide path 1l, a circulating grain conveying device including the lower conveyor 15, elevator 2, and upper conveyor 16 is used. This type of circulating grain dryer A, which relates to improvements in the operation control means, was developed to dry grains with a high moisture content harvested by a harvester such as a combine harvester in the field, and has a drum shutter l4 and Lower conveyor 15
Then, the circulation system grain conveying devices such as the elevator 2 and the upper conveyor 16 are operated to circulate and flow the grains and then dry them in the grain flow path 10. To increase the drying loss rate, which is drying efficiency, when performing drying work that blows air to dry. In order to raise the temperature of the drying air to hot air at a desired temperature, it is equipped with a hot air generating device C that combines a burner device and an air blower, and during normal drying work, the hot air generated by the operation of the burner device is It passes through the grain flow path lO as drying air and is fed to the grains. Then, the flow path 10 for the grains to be exposed to this hot drying air.
If the grain inside is exposed to hot air for a long time, it will deteriorate.
If it is too short, the amount of heat supplied will be insufficient, so the rotation operation of the drum shutter 14 is usually controlled intermittently so that it rotates once every about 30 seconds.
The grains are made to flow through the flow path lO in a substantially constant time. By the way, for drying grains, the above-mentioned circulating grain dryer A is used.
Drying is carried out by supplying hot air as drying air with a drying loss rate of approximately 0.7 to 1% per hour. Since the quality and taste of rice are decreasing, the dry g rate is reduced to about 0.1% per hour by natural ventilation or by supplying low-temperature hot air.
Drying methods with low drying loss rates are being reconsidered. In order to dry with this low drying loss rate, the above-mentioned circulating grain dryer A is either stopped operating the burner device of its hot air generating device and only operates the blower, or the operation of the burner device is minimized. In this state, the drum shutter 14 and the circulation system shell transport device are operated, and the grains circulating in the grain flow path 10 of the drying section b are exposed to an extremely low temperature. Hot air or nature. Grain has been dried by blowing air. However, when the above-mentioned circulating grain dryer A is operated to dry the grains at a low drying rate, the supply of heat to the grains flowing through the grain flow path 10 tends to be insufficient. As a result, the drive control of the drum shutter 14 that operates intermittently can be controlled by, for example, 5. Rotate once every minute or so.
The interval is set to be much longer than that during normal drying, so that the time for grains to flow through the grain flow path 10 is extended. However, if the intermittent operation interval of the drum shutter 14 is set long in this way and the circulating grain dryer A is operated to dry the grains at a low drying loss rate, the drying process will be As the time required increases, running costs increase, and there is also the problem that the various operating parts of the aircraft 1 are subject to faster wear and tear. The present invention was made to solve this problem, and it suppresses the increase in running costs when drying grains at a low drying loss rate using a circulating grain dryer.
In addition, the present invention proposes an operation control means that enables the circulating grain dryer to operate while reducing wear and damage on each operating part. The grain conveying device in the circulation system of the circulation type grain dryer is mounted on a shaft at the lower end of the grain flow path in the drying section and operates intermittently during at least one of the following operations: circulation, drying, and discharge. This paper proposes a method for controlling the operation of a circulation-based grain conveying device in a circulation-type grain dryer, which is characterized in that it is controlled to operate intermittently in synchronization with a drum shutter. Next, an example will be described in detail according to the drawings. Note that the same drawing numbers as in the previous means shall be used for components with the same effect. Fig. 3 is a partially cutaway side view of a circulating grain dryer A used in carrying out the method of the present invention. a reservoir formed in;
B is installed in the lower half of the internal cavity of the machine body by separating a grain flow path 10, a dry air guide path 11, and an air exhaust path L2 in parallel with each other by partitioning them with an air permeable partition wall 13. Drying section, 14 is a drum shutter installed at the lower end of the grain flow path lO of drying section b, 15 is a lower conveyor installed at the bottom of the internal cavity of the machine body l, 2 is installed upright along the outer surface of the machine body l The elevator, 16 is an upper conveyor, and C is a hot air generating device consisting of a burner device and a blower, and these are constructed in the same way as the previous means. The drum shutter l4 is driven by a motor M1, the lower conveyor l5 and elevator 2 are driven by a motor M2, and the upper conveyor l6 is driven by a motor M3, and the operation of these motors is controlled. , is carried out by a control device in a control box d installed on the front of the aircraft l. Further, the operation of the burner device of the hot air generating device C is controlled independently of the operation of the blower that sends drying air to the grain flow path 10 through the air guide path 1l. Therefore, the control of the intermittent operation of the drum shutter 14 is changed from the state shown in FIG.
360 degree rotation in the counterclockwise direction shown in , and 360 degree rotation in the clockwise direction shown by arrow B in the same figure from that state position.
The drive circuit of the motor Ml is turned on and off and the direction of rotation is switched so that the rotation of 60 degrees is alternately repeated at predetermined intervals. And the interval is the drum shutter 14
Since it takes about 10 seconds for one revolution, the fifth
As shown in the process diagram in the figure, the actual drum shutter l4
The interval during which is stopped is 4 minutes and 50 seconds, and 5
It is set to rotate once every minute. In addition, the circulation system grain conveying devices such as the lower conveyor l5, the elevator 2, and the upper conveyor 16 were conventionally controlled to operate continuously at all times; As shown in , drum shutter 1
In accordance with the intermittent operation in step 4, the control is such that activation and stopping are repeated at predetermined intervals. That is, about 3
After 0 seconds of operation, the drive is stopped for about 4 minutes and 30 seconds, and this is repeated, so that intermittent operation is performed every 5 minutes in synchronization with the intermittent operation of the drum shutter 14. The control circuit is set to turn on/off the drive rotation of the motor. However, the synchronization between the intermittent operation of the grain conveying devices in the circulation system, such as the lower conveyor l5, elevator 2, and upper conveyor l6, and the intermittent operation of the drum shutter 14 cannot be completely synchronized. However, since it takes several seconds to start the grain conveying device in the circulation system, especially after the elevator 2 is started, until it is ready for reliable grain lifting operation, the drum shutter l4 is closed with a time lag of several seconds. It is set to precede the activation time. In addition, the operation time of the grain conveying device is approximately 30 seconds,
What makes the operating time of the drum shutter l4 longer than the operation time of the drum shutter l4 is that the drum shutter l4 rotates once, and the grain conveying device transfers the grains delivered to the lower conveyor 15 of the grain conveying device to the machine body l. This is because it takes time to feed the grains to the storage part a in the drum shutter l4, and this operation time is equal to the time required to feed the grains fed out by one operation of the drum shutter l4. This can be set at an appropriate time depending on the grain feeding capacity of the grain conveying device. In addition, the intermittent operation of the circulation system grain conveying device is performed in synchronization with the intermittent operation of the drum shutter l4. This is for drying with a low drying loss rate, and when performing drying with a high drying loss rate, which is normal drying, the synchronized intermittent operation can be canceled and the state can be returned to normal continuous operation. , configures the control device. In addition, in the circulating grain conveying device, the elevator 2 is formed into a dumping type in which the grains released from the discharge tube are directly thrown into the storage section a, and the lower conveyor 16 and the elevator 2 are connected to each other. There is a case where the formed upper conveyor l6 is omitted. Next, the operation of the means of the present invention will be explained. Storage part a in the machine body l for grains to be dried
The tensioning is the same as the previous method, and is carried out by stopping the operation of the drum shutter l4 and activating the circulating grain conveying device. When starting the drying process after grain loading, the drum shutter 14 and the grain conveying device are operated, and the hot air generating device C is kept in a state where its burner device is kept at a very low level or stopped. As a result, only the blower operates normally.
As mentioned above, the grain conveying device in the circulation system also operates intermittently in synchronization with this by switching between forward and reverse alternately at predetermined intervals and making one rotation. .. The intermittent operation of the drum shutter 14 at this time and the intermittent operation of the grain conveying device synchronized therewith are, in terms of the above-mentioned example setting value, the drum shutter l4.
, the interval is 5 minutes, which is about 10 times the previous 30 seconds, and correspondingly,
By lengthening the time that the grains flow through the flow path 10 of the drying section b, the grains are sufficiently exposed to low-temperature hot air or natural air, and drying with a low drying loss rate is efficiently performed. Make it possible to do so. In addition, in the intermittent operation of the grain conveying device, there is a 4 minute and 30 second rest period after 30 seconds of operation, and this 30 second operation time is longer than the previous continuous operation. This corresponds to the time divided by each operation of the drum shutter 14, which operates intermittently every 30 seconds, so if you look at it as the operating time to convey the grains fed out by one operation of the drum shutter 14, it will be shorter than the previous continuous & ! This is no different than if you had been driving. Therefore, the circulating grain conveying device operates only while feeding the grains fed out from the intermittently operating drum shutter 14, and is idle during the idle period after finishing the feeding process. It becomes like this. As explained above, the means of the present invention operates the grain conveying device of the circulation system of the circulation type grain dryer during at least one of the operations of circulation, drying, and discharge.
The system is controlled so that it operates intermittently in synchronization with the drum shutter that is mounted on a shaft at the lower end of the grain flow path in the drying section and operates intermittently. By setting the interval of the drum shutter 14 to be long, even if the overall time of the drying process becomes longer, the actual operating time of the grain conveying device in the circulation system does not become so long, and the grain conveying device The occurrence of wear and damage can be effectively suppressed.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は循環型穀粒乾燥機の一部破断した側面図、第2
図は同上の縦断正面図、第3図j士本発明の実施に用い
る循環型穀粒乾燥機の一部破断した側面図、第4図は同
上のドラムシャッターの縦断正面図、第5図は本発明手
段の制御例におけるドラムシャッターおよび穀粒搬送装
置の間欠作動の行程図で.ある. 図面符号の説明 A・・・循環型穀粒乾燥機 a・・・貯留部b・・・乾
燥部      C・・・熱風生成装置d・・・コント
ロールボックス 1・・・機体       1.0・・・流下路1l・
・・導風路     l2・・・排風路l3・・・隔壁
     l4・・・ドラムシャッター15・・・下部
コンベア  16・・・上部コンベア2・・・昇III
l機      20・・・揚穀塔Ml−M2●M3・
・・モーター 特 許 出 願 人 株式会社 山本製作所 第 図 l !5 第 図 第 図 1b
Figure 1 is a partially cutaway side view of a circulating grain dryer;
The figures are a longitudinal sectional front view of the same as above, Fig. 3 is a partially cutaway side view of a circulating grain dryer used for carrying out the present invention, Fig. 4 is a longitudinal sectional front view of the drum shutter of the same as above, and Fig. 5 is a longitudinal sectional front view of the same as above. FIG. 3 is a process diagram of intermittent operation of the drum shutter and grain conveying device in a control example of the means of the present invention. be. Explanation of drawing symbols A... Circulating grain dryer a... Storage section b... Drying section C... Hot air generator d... Control box 1... Airframe 1.0... Downstream path 1l・
... Air guide path l2... Air exhaust path l3... Partition wall l4... Drum shutter 15... Lower conveyor 16... Upper conveyor 2... Elevation III
l machine 20...grain-lifting tower Ml-M2●M3・
...Motor patent applicant Yamamoto Seisakusho Co., Ltd. Figure l! 5 Figure 1b

Claims (1)

【特許請求の範囲】[Claims] (1)、循環型穀粒乾燥機の循環系の穀粒搬送装置を、
循環・乾燥・排出の各作業のうちの少なくとも一作業時
に、乾燥部の穀粒の流下路の下端に軸架して間欠作動さ
すドラムシャッターと同期して間欠作動さすよう制御す
ることを特徴とする循環型穀粒乾燥機における循環系の
穀粒搬送装置の運転制御方法。
(1) The circulating grain conveying device of the circulating grain dryer,
The feature is that during at least one of the circulation, drying, and discharge operations, the control is performed intermittently in synchronization with a drum shutter that is mounted on a shaft at the lower end of the grain flow path in the drying section and operates intermittently. A method for controlling the operation of a circulating grain conveying device in a circulating grain dryer.
JP5148489A 1989-03-03 1989-03-03 Operation control method for grain conveying equipment of circulating system in circulation type grain dryer Pending JPH02233986A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5148489A JPH02233986A (en) 1989-03-03 1989-03-03 Operation control method for grain conveying equipment of circulating system in circulation type grain dryer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5148489A JPH02233986A (en) 1989-03-03 1989-03-03 Operation control method for grain conveying equipment of circulating system in circulation type grain dryer

Publications (1)

Publication Number Publication Date
JPH02233986A true JPH02233986A (en) 1990-09-17

Family

ID=12888232

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5148489A Pending JPH02233986A (en) 1989-03-03 1989-03-03 Operation control method for grain conveying equipment of circulating system in circulation type grain dryer

Country Status (1)

Country Link
JP (1) JPH02233986A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115654870A (en) * 2022-10-19 2023-01-31 安徽正阳机械科技有限公司 Grain drying-machine with adjustable stoving volume

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59129375A (en) * 1983-01-08 1984-07-25 金子農機株式会社 Method of drying cereal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59129375A (en) * 1983-01-08 1984-07-25 金子農機株式会社 Method of drying cereal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115654870A (en) * 2022-10-19 2023-01-31 安徽正阳机械科技有限公司 Grain drying-machine with adjustable stoving volume
CN115654870B (en) * 2022-10-19 2024-03-29 安徽正阳机械科技有限公司 Grain drying-machine with adjustable stoving volume

Similar Documents

Publication Publication Date Title
JPH02233986A (en) Operation control method for grain conveying equipment of circulating system in circulation type grain dryer
JPS60153754A (en) How to dry soybean grains
JPH1019462A (en) Drying method of grain using circulation type grain dryer
JP3133705B2 (en) Circulating grain dryer
JPH0814752A (en) Multitier band dryer with temperature lowering device
JPH01189483A (en) Dust control device for circulating grain dryer
JP2892893B2 (en) Grain drying facility
JP3274629B2 (en) Circulating grain dryer
JPH063053A (en) Drying method of grain and operation control method of storage apparatus
JP2002174489A (en) Drying control method in general-purpose grain dryer and general-purpose grain dryer
JPH01219493A (en) Grain dryer stem drying control device
JPH0464885A (en) Grain drying method
JPH0436586A (en) Drying control method of grain dryer
JPH02233987A (en) Controller of grain dryer
JPH10339576A (en) Circulation system grain dryer
JPH0210088A (en) Grain crop drying device
JPH01200185A (en) Drying control device for circulating grain dryer
JPS6284284A (en) Grain drying control method of grain dryer
JPH074840A (en) Grain discharge control device for grain dryer
JPH1130480A (en) Grain dryer
JPS62123282A (en) Grain dryer overload control device
JPS6287780A (en) Grain drying control method of grain dryer
JPH02306087A (en) Flowrate controller for cereals drier
JPH0247936B2 (en)
JPH0462387A (en) Drying control method of grain dryer