JPS6314307Y2 - - Google Patents
Info
- Publication number
- JPS6314307Y2 JPS6314307Y2 JP1983004284U JP428483U JPS6314307Y2 JP S6314307 Y2 JPS6314307 Y2 JP S6314307Y2 JP 1983004284 U JP1983004284 U JP 1983004284U JP 428483 U JP428483 U JP 428483U JP S6314307 Y2 JPS6314307 Y2 JP S6314307Y2
- Authority
- JP
- Japan
- Prior art keywords
- grain
- ventilation
- dryer
- circulation
- drying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000009423 ventilation Methods 0.000 claims description 47
- 238000010981 drying operation Methods 0.000 claims description 33
- 238000001035 drying Methods 0.000 claims description 20
- 230000006866 deterioration Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- 238000003306 harvesting Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000002542 deteriorative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
Landscapes
- Drying Of Solid Materials (AREA)
Description
【考案の詳細な説明】
〔考案の技術分野〕
この考案は循環型穀物乾燥機の乾燥運転開始前
や乾燥運転休止中等の非乾燥運転状態において、
張込まれた穀物が乾燥機の休止等による通風停止
や収穫直後の含有高水分のために生ずる蒸れ等で
変質するのを防止し、また穀物が循環により機械
的損傷を被ることを防止した循環型穀物乾燥機の
通風制御装置に関する。[Detailed Description of the Invention] [Technical Field of the Invention] This invention provides a method for drying a circulating grain dryer in a non-drying state such as before starting drying operation or when drying operation is stopped
Circulation system that prevents grains from deteriorating in quality due to dampness caused by stopping ventilation due to dryers being stopped or due to high moisture content immediately after harvesting, and also prevents grains from suffering mechanical damage due to circulation. This invention relates to a ventilation control device for a grain dryer.
一般に、通風手段と循環手段とを具備し、乾燥
部に熱風を流通させ、この乾燥部と貯留部との間
に穀物を循環させて乾燥を行う循環型穀物乾燥機
において、所定量の穀物をコンバイン等により収
穫する際に、半日あるいはそれ以上の時間を要す
る場合がある。
Generally, a circulating grain dryer is equipped with a ventilation means and a circulation means, and circulates hot air through a drying section, and circulates grain between the drying section and a storage section to dry the grain. Harvesting with a combine harvester may take half a day or more.
この場合、収穫すべき穀物が高水分を含有して
いると、初期に収穫した穀物をそのままコンバイ
ン袋等に堆積しておくのは、変質を招来すること
になる。このため、ある程度収穫した段階で乾燥
機に投入し、乾燥機の非乾燥運転状態である乾燥
運転開始前に通風運転あるいは通風循環運転をす
る必要がある。 In this case, if the grain to be harvested contains high moisture content, piling the initially harvested grain as it is in a combine harvester bag or the like will lead to deterioration. For this reason, it is necessary to put the fruit into the dryer after it has been harvested to a certain extent, and to perform ventilation operation or ventilation circulation operation before starting drying operation, which is the non-drying operation state of the dryer.
また、乾燥運転は昼夜連続運転を行うものであ
るが、騒音公害や防火管理上の観点から夜間運転
の休止が望まれている。ところが、穀物が高水分
を含有するときに乾燥運転を休止すると、通風停
止により乾燥機の非乾燥運転状態である乾燥運転
休止中に穀物が蒸れて品質劣化を来すので、やは
りある程度の通風運転等をする必要がある。 Furthermore, although drying operation is performed continuously day and night, it is desired to suspend operation at night from the viewpoint of noise pollution and fire prevention management. However, if the drying operation is stopped when the grain contains a high moisture content, the grain will become steamed and quality will deteriorate during the drying operation stop, which is the non-drying operation state of the dryer due to the ventilation stoppage. etc. need to be done.
しかしながら、従来の穀物乾燥機は通風運転あ
るいは通風循環運転を手動で行うようになつてい
たため、適正な通風運転あるいは通風循環運転を
行うのが困難であつた。このため、穀物が蒸れて
品質劣化を来したり、ありいは穀物を過度に循環
して機械的損傷を増大したりするおそれがあつ
た。 However, in conventional grain dryers, ventilation operation or ventilation circulation operation was performed manually, and it was difficult to perform proper ventilation operation or ventilation circulation operation. For this reason, there was a risk that the grains would become steamed, resulting in quality deterioration, or that the grains would be circulated excessively, increasing mechanical damage.
そこでこの考案の目的とするところは、乾燥機
の乾燥運転開始前や乾燥運転休止中等の非乾燥運
転状態において、張込まれた高水分を含有する穀
物が乾燥運転の休止等により変質するのを防止す
るとともに、乾燥機の循環による穀物の機械的損
傷を低減させることのできる循環型穀物乾燥機の
通風制御装置を実現することにある。
Therefore, the purpose of this invention is to prevent grains containing high moisture content from deteriorating due to suspension of drying operation, etc., in non-drying operating conditions such as before the dryer starts drying operation or when drying operation is stopped. An object of the present invention is to realize a ventilation control device for a circulating grain dryer that can prevent mechanical damage to grains caused by circulation in the dryer.
この目的を達成するためにこの考案は、通風手
段と循環手段とを具備し、乾燥部に熱風を流通さ
せ、この乾燥部と貯留部との間の穀物を循環させ
て乾燥を行う循環型穀物乾燥機において、貯留部
に張込まれた穀物の水分値を検知する水分計と、
前記乾燥機の非乾燥運転状態において前記水分計
で検知した水分値が所定値以上のときに少なくと
も穀物の通風手段を動作制御する通風制御手段
と、前記穀物の温度を検知する穀温センサと、前
記乾燥機の非乾燥運転状態において前記張込まれ
た穀物の張込量が所定量以上かつ前記穀温センサ
による検知温度が所定温度以上のときに前記通風
制御手段の動作に加えて所定時間、穀物の循環手
段を動作制御する循環制御手段とを設けたことを
特徴とする。
In order to achieve this purpose, this invention is a circulating grain type that is equipped with ventilation means and circulation means, circulates hot air through a drying section, and circulates grain between this drying section and a storage section to dry the grain. In the dryer, a moisture meter that detects the moisture value of the grain stored in the storage section,
ventilation control means for controlling the operation of at least a grain ventilation means when the moisture value detected by the moisture meter is equal to or higher than a predetermined value in a non-drying operating state of the dryer; and a grain temperature sensor for detecting the temperature of the grain; In addition to operating the ventilation control means for a predetermined period of time when the amount of loaded grain is at least a predetermined amount and the temperature detected by the grain temperature sensor is at least a predetermined temperature in the non-drying operation state of the dryer, A circulation control means for controlling the operation of the grain circulation means is provided.
この考案によると、乾燥機の非乾燥運転状態に
おいて、張込まれた穀物の水分値が穀物に品質劣
化を来すような値であるときは、通風制御手段に
より少なくとも通風手段が動作制御され穀物の通
風が図られる。そして、乾燥機の非乾燥運転状態
において、張込まれた穀物の穀温が所定温度以上
でかつ穀物の張込量が所定量以上のときには、通
風手段の動作に加えてさらに循環制御手段により
循環手段が所定時間動作制御され、通風できない
部分に貯留された穀物の通風を図り、穀温を低下
し変質を防止する。 According to this invention, when the dryer is in a non-drying operation state and the moisture value of the loaded grain is such that it causes quality deterioration of the grain, the ventilation control means at least controls the operation of the ventilation means to dry the grain. Ventilation will be provided. In the non-drying operation state of the dryer, when the grain temperature of the loaded grain is higher than a predetermined temperature and the loaded amount of grain is higher than a predetermined amount, in addition to the operation of the ventilation means, the circulation control means is further operated to circulate the grain. The operation of the means is controlled for a predetermined period of time to ventilate the grain stored in the area where ventilation is not possible, thereby lowering the grain temperature and preventing deterioration.
このようにこの考案によれば、乾燥運転開始前
や乾燥運転休止中等の非乾燥運転状態において、
乾燥機に張込まれた穀物の水分値が所定値以上の
ときには、通風手段によつて通風されるので蒸れ
等による品質劣化を防止することができる。ま
た、通風手段により穀物の品質劣化の防止を図
り、循環は極力しないようにしているので、穀物
の機械的損傷を低減させることができる。即ち、
乾燥運転開始前や乾燥運転休止中等の非乾燥運転
状態において乾燥機に張込まれた穀物の検知穀温
と張込量とが所定の値よりも大きいときには、通
風に加えて所定時間穀物を循環するので、必要以
上の循環で穀物が搬送手段等により機械的損傷を
受けることがない。
As described above, according to this invention, in non-drying operation states such as before starting drying operation or when drying operation is stopped,
When the moisture level of the grains loaded in the dryer is above a predetermined value, the ventilation means ventilates the grains, thereby preventing quality deterioration due to stuffiness or the like. Further, since the ventilation means is used to prevent quality deterioration of the grains and circulation is avoided as much as possible, mechanical damage to the grains can be reduced. That is,
If the detected grain temperature of the grain loaded in the dryer and the loaded amount are greater than a predetermined value in a non-drying operation state such as before the start of drying operation or when drying operation is stopped, the grain is circulated for a predetermined period of time in addition to ventilation. Therefore, the grains are not mechanically damaged by the conveying means or the like due to excessive circulation.
次にこの考案の実施例を図に基づいて説明す
る。第１図は、この考案による通風制御装置を備
えた循環型穀物乾燥機の縦断面図である。図にお
いて、循環型穀物乾燥機２は貯留部４と乾燥部６
と集穀部８から構成されている。揚穀機の供給ホ
ツパ（図示せず）に投入された穀物を揚上し、上
部搬送手段１０により前記乾燥機２の上部中央部
まで搬送して貯留部４中に均分落下させ、該貯留
部４内に張込む。張込まれた穀物は、乾燥部６で
乾燥させた後に集穀部８に導き、縦搬送手段１２
により前記揚穀機の下部まで移送し、次いで揚穀
機により揚上して上部搬送手段１０により再び貯
留部４中に均分落下させるという循環を繰返しつ
つ、穀物の乾燥を行うものである。
Next, an embodiment of this invention will be described based on the drawings. FIG. 1 is a longitudinal sectional view of a circulating grain dryer equipped with a ventilation control device according to this invention. In the figure, the circulating grain dryer 2 has a storage section 4 and a drying section 6.
and a grain collecting section 8. The grains put into the supply hopper (not shown) of the grain lifting machine are lifted up, conveyed to the upper central part of the dryer 2 by the upper conveying means 10, and dropped evenly into the storage section 4, and then Stick it out in section 4. The packed grain is dried in the drying section 6 and then guided to the grain collection section 8, where it is conveyed to the vertical conveyance means 12.
The grains are dried by repeating the cycle of transporting the grains to the lower part of the grain lifting machine, then lifting them up with the grain lifting machine, and dropping the grains evenly into the storage section 4 again by the upper conveying means 10.
前記貯留部４の下部で乾燥部６の流穀路１４の
入口付近には、穀物水分値を検知するための水分
計１６と穀物の温度を検知する穀温センサ１８と
を設けている。前記流穀路１４の下部は、集穀部
８に連なる繰出路２０の流出口２２に開口終端さ
せる。この流出口２２にはロータリ式の繰出バル
ブ２４を設け、各繰出バルブ２４と循環モータ２
６間にエンドレスチエーン２８を架け渡し、繰出
バルブを所定に回転し循環速度を制御する。 At the lower part of the storage section 4 and near the entrance of the grain flow path 14 of the drying section 6, there are provided a moisture meter 16 for detecting the grain moisture value and a grain temperature sensor 18 for detecting the temperature of the grain. The lower part of the grain flow path 14 opens and ends at the outlet 22 of the feeding path 20 which is connected to the grain collecting section 8 . This outlet 22 is provided with a rotary type delivery valve 24, and each delivery valve 24 and the circulation motor 2
An endless chain 28 is placed between the two, and the delivery valve is rotated in a predetermined manner to control the circulation speed.
このような穀物乾燥機２の前面には、第２図に
示す制御盤３０を設けてある。この考案の制御装
置の主要な制御回路はこの制御盤３０の内側に設
けられ、この制御盤パネルに配備された下記の諸
操作子によつて指令が与えられ、また、各種セン
サの入力によつて予め記憶されたプログラムに従
い所定のジヨブを実行する。 A control panel 30 shown in FIG. 2 is provided on the front surface of such a grain dryer 2. The main control circuit of the control device of this invention is installed inside this control panel 30, and commands are given by the following operators provided on this control panel, and also by inputs from various sensors. Then, a predetermined job is executed according to a pre-stored program.
第２図において、３２は運転表示ランプ、３４
は通風表示ランプ、３６は休止表示ランプであ
り、乾燥機２が乾燥運転状態にあるか、通風運転
状態にあるか、休止状態にあるかを表示する。３
８は自動運転表示ランプ、４０は手動運転表示ラ
ンプであり、乾燥機の運転状態が自動であるか手
動であるかを識別するものである。 In FIG. 2, 32 is an operation indicator lamp, 34
3 is a ventilation display lamp, and 36 is a suspension display lamp, which indicates whether the dryer 2 is in a drying operation state, a ventilation operation state, or a suspension state. 3
8 is an automatic operation indicator lamp, and 40 is a manual operation indicator lamp, which identifies whether the operating state of the dryer is automatic or manual.
４２はスピーカーで、乾燥機２の各種異常に際
して警報音を発する。また、４４はOKモニタ
で、モータ異常や籾づまりあるいは水分計や張込
量検知器など乾燥機２の各運転部が電気系統ある
いは各種センサが正常に機能しているかどうか、
故障があるか、といつた監視の結果、配備された
各ランプ４６によつて表示する。４８は電源ラン
プ、５０は乾燥機の全運転動作を非常停止する全
停止スイツチである。５２は張込スイツチ、５４
は乾燥スイツチ、５６は排出スイツチ、５８はこ
の考案装置をスタートする通風スイツチであり、
これら各押釦スイツチは乾燥運転の主要な動作指
令を入力させるもので、乾燥運転の開始時や終了
等の場合に操作されるものである。また、６０は
必要に応じて運転を一時停止させるための停止ス
イツチである。６２は投入される穀物の種別を設
定する種別スイツチ、６４はその投入量を設定す
る穀物量設定スイツチ、６６は穀物の乾燥終了時
の水分値を設定する停止水分値設定スイツチであ
る。 Reference numeral 42 denotes a speaker, which emits an alarm sound when various abnormalities occur in the dryer 2. In addition, 44 is an OK monitor, which checks whether the electric system or various sensors of the operating parts of the dryer 2, such as motor abnormality, paddy clogging, moisture meter and loading amount detector, are functioning normally.
The results of the monitoring, such as whether there is a failure, are displayed by each of the lamps 46 provided. Reference numeral 48 indicates a power lamp, and 50 indicates a full stop switch for emergency stopping all operations of the dryer. 52 is a stakeout switch, 54
56 is a drying switch, 56 is a discharge switch, and 58 is a ventilation switch that starts this devised device.
Each of these push button switches is used to input main operation commands for the drying operation, and is operated when starting or ending the drying operation. Further, 60 is a stop switch for temporarily stopping the operation if necessary. 62 is a type switch for setting the type of grain to be input, 64 is a grain amount setting switch for setting the amount of input, and 66 is a stop moisture value setting switch for setting the moisture value at the end of drying of the grain.
第３図は、この考案による制御装置の回路の概
略を示すブロツク図である。 FIG. 3 is a block diagram schematically showing the circuit of the control device according to this invention.
図において、張込スイツチ５２、乾燥スイツチ
５４、排出スイツチ５６、通風スイツチ５８、停
止スイツチ６０、種別スイツチ６２は前記制御盤
３０に設けられたものである。また、穀物量設定
スイツチ６４、停止水分値設定スイツチ６６も同
様に前記制御盤３０に設けられたものである。 In the figure, a filling switch 52, a drying switch 54, an ejection switch 56, a ventilation switch 58, a stop switch 60, and a type switch 62 are provided on the control panel 30. Further, a grain amount setting switch 64 and a stop moisture value setting switch 66 are similarly provided on the control panel 30.
６８は前記OKモニタ４４とも関係する各種安
全スイツチを示すもので、消火器作動スイツチ、
燃料オーバフロースイツチ等のスイツチ群であ
る。 Reference numeral 68 indicates various safety switches related to the OK monitor 44, including a fire extinguisher activation switch,
This is a group of switches such as fuel overflow switches.
水分計１６、穀温センサ１８は、前記したよう
に貯留部４の下部に設けられたものである。７０
は熱風温度センサ、７２は外気温度センサ、７４
は燃料タンク（図示せず）に設けられた燃料セン
サである。 The moisture meter 16 and the grain temperature sensor 18 are provided at the lower part of the storage section 4 as described above. 70
is a hot air temperature sensor, 72 is an outside air temperature sensor, 74
is a fuel sensor provided in a fuel tank (not shown).
７６は各部の動作を同期させるために同期信号
を発生するクロツク発信器、７８は前記水分計１
６等の各種センサのアナログ情報をデジタル情報
に変換するＡ／Ｄ変換回路、８０はエンコーダで
穀物量設定スイツチ６４が停止水分値設定スイツ
チ６６の設定した値を符号化し、CPUを中心と
した制御用コンピユータであるデータ処理回路８
２に出力する。 76 is a clock oscillator that generates a synchronizing signal to synchronize the operations of each part; 78 is the moisture meter 1;
An A/D conversion circuit converts analog information from various sensors such as 6 into digital information, and 80 is an encoder that encodes the value set by the grain amount setting switch 64 and the stop moisture value setting switch 66, and controls mainly by the CPU. data processing circuit 8 which is a computer for
Output to 2.
８４は前述したOKモニタ４４や各種運転状態
を表す運転表示ランプ３２などを含む運転表示器
である。 Reference numeral 84 is an operation indicator including the above-mentioned OK monitor 44 and operation indicator lamps 32 indicating various operating states.
８６はバーナ駆動回路で、８８はモータ駆動回
路である。これらは前記データ処理回路８２によ
り駆動制御される。バーナ駆動回路８６は、点火
ヒータ９０、点火バルブ９２、電磁ポンプ９４お
よびバーナ用フアンモータ９６を制御する。ま
た、モータ駆動回路８８は、排風機モータ９８、
循環モータ１００、水分計モータ１０２、搬送モ
ータ１０４、排塵機モータ１０６の駆動を制御す
る。 86 is a burner drive circuit, and 88 is a motor drive circuit. These are driven and controlled by the data processing circuit 82. The burner drive circuit 86 controls an ignition heater 90, an ignition valve 92, an electromagnetic pump 94, and a burner fan motor 96. The motor drive circuit 88 also includes an exhaust fan motor 98,
The drive of the circulation motor 100, moisture meter motor 102, conveyance motor 104, and dust remover motor 106 is controlled.
第４図はこの考案による制御装置の動作をフロ
ーチヤートで示したものである。乾燥機２の乾燥
運転開始前や乾燥運転休止中等の非乾燥運転状態
において、即ち、乾燥機２を夜間に休止したり、
収穫期における収穫穀物を乾燥機２に投入したと
きに、通風スイツチ５８をオンにすると、通風モ
ード２００が開始する。まず、２０１では水分計
１６で張込まれた穀物の水分値Ｍを検知する。次
いで２０２では、この水分値Ｍと穀物に品質劣化
を来す所定の水分値とを比較し、20％以上である
かどうかを判断する。検知水分値Ｍが所定水分値
20％よりも大の場合は２０３へ進み、所定水分値
20％よりも小の場合は２１４へ進む。検知水分値
Ｍが所定水分値よりも小の場合には、穀物が品質
劣化を来すおそれはないので、２１４では通風は
もちろん機械的損傷を招きかねない循環も行わな
い。そして、２１４から２１２へジヤンプして、
停止スイツチ６０がオンのときは２１３へ進み停
止処理を行う。２１２でNOの場合、例えば収穫
穀物を投入しており、さらに追加投入したような
場合には水分値の変動もあり得るので、２０１へ
ジヤンプして水分値Ｍを測定し比較する。 FIG. 4 is a flowchart showing the operation of the control device according to this invention. In a non-drying operation state such as before the start of drying operation of the dryer 2 or when the drying operation is stopped, that is, when the dryer 2 is stopped at night,
When the ventilation switch 58 is turned on when harvested grains are put into the dryer 2 during the harvest period, the ventilation mode 200 is started. First, in step 201, the moisture value M of the loaded grain is detected by the moisture meter 16. Next, in 202, this moisture value M is compared with a predetermined moisture value that causes quality deterioration of the grain, and it is determined whether the moisture value is 20% or more. The detected moisture value M is the predetermined moisture value
If it is greater than 20%, proceed to 203 and set the specified moisture value.
If it is less than 20%, proceed to 214. If the detected moisture value M is smaller than the predetermined moisture value, there is no risk that the quality of the grain will deteriorate, so in step 214, not only ventilation but also circulation, which could cause mechanical damage, is not performed. Then jump from 214 to 212,
When the stop switch 60 is on, the process advances to 213 and a stop process is performed. If NO in 212, for example, if harvested grain has been input and additional input has been made, the moisture value may fluctuate, so the process jumps to 201 and the moisture value M is measured and compared.
２０２で検知した水分値Ｍが所定水分値Ｍより
も大の場合、２０３へ進み通風を開始する。通風
は、モータ駆動回路８８によつて駆動制御される
排風機モータ９８の駆動で行われる。次いで、２
０４では穀物量設定スイツチ６４によつて張込量
MSを入力する。なお、張込量MSは、穀物量セ
ンサによる検出値の入力も可能である。２０５で
は、張込量MSが低張込量MSLよりも多いかどう
かを判断する。低張込量MSLより少ない場合は、
排風だけで通風できるので蒸れることがない。そ
こで、NOの場合は通風のみを行い、２１２へジ
ヤンプする。張込量MSが低張込量MSLよりも多
い場合すなわちYESの場合は、貯留部４上方の
通風が困難で穀物の品質劣化を招き易くまた穀温
を低下させることができないので、２０６へ進み
循環の準備を開始する。 If the moisture value M detected in 202 is greater than the predetermined moisture value M, the process proceeds to 203 and ventilation is started. Ventilation is performed by driving an exhaust fan motor 98 whose drive is controlled by a motor drive circuit 88. Then 2
In 04, the loading amount is set by the grain amount setting switch 64.
Enter MS. Note that it is also possible to input a value detected by a grain amount sensor as the filling amount MS. In 205, it is determined whether the filling amount MS is greater than the low filling amount MSL. If it is less than the low filling amount MSL,
Ventilation is achieved only by exhaust air, so there is no stuffiness. Therefore, in the case of NO, only ventilation is performed and the process jumps to 212. If the loading amount MS is larger than the low loading amount MSL, that is, if the answer is YES, it is difficult to ventilate the upper part of the storage section 4, which tends to cause quality deterioration of the grain, and it is not possible to lower the grain temperature, so proceed to 206. Start preparing for circulation.
２０６では循環開始温度TSを算出する。循環
監視温度TSとは、貯留部４中の穀物の温度が乾
燥部６に入るまでに変質を来す温度（例えば40
℃）にまで上昇するような場合の穀温である。し
たがつて、循環開始温度TSは張込量MSにより
設定される温度で、張込量MSが多い場合低く、
少ない場合は高くなる。 In 206, the circulation start temperature TS is calculated. The circulation monitoring temperature TS is the temperature at which the grain in the storage section 4 undergoes deterioration before entering the drying section 6 (for example, 40
This is the grain temperature when the temperature rises to ℃). Therefore, the circulation start temperature TS is the temperature set by the filling amount MS, and is low when the filling amount MS is large.
If it is less, it will be higher.
循環開始温度TSを算出したら、続いて２０７
で穀温TAを入力し、２０８で比較を行う。 After calculating the circulation start temperature TS, proceed to 207
Input the grain temperature TA in step 208, and perform the comparison in step 208.
２０８では循環開始温度TSと穀温TAを比較
し、穀温TAが循環開始温度TSより低ければ蒸
れによる穀物の品質劣化の恐れがないのでNOに
進み、通風のみを行つて２１２へジヤンプする。
穀温TAが循環開始温度TS以上の場合は、通風
が不十分で穀温上昇による蒸れなど品質劣化を来
す恐れがあるので、穀温TAが変質を来す温度を
越える前に乾燥部６に入るように、２０９で循環
を開始する。 At 208, the circulation start temperature TS is compared with the grain temperature TA, and if the grain temperature TA is lower than the circulation start temperature TS, there is no risk of quality deterioration of the grain due to steaming, so proceed to NO, perform only ventilation, and jump to 212.
If the grain temperature TA is higher than the circulation start temperature TS, there is a risk of quality deterioration such as stuffiness due to insufficient ventilation due to the increase in grain temperature. The cycle begins at 209 so as to enter.
循環は、２１０でＴ秒間計時されて最小限の循
環を行い、穀物の機械的損傷を低減する。この循
環は、循環モータ１００のみを所定時間毎にＴ秒
間だけ作動し間欠循環させてもよいし、排風モー
タ９８とともにＴ秒間だけ作動し間欠通風・循環
させてもよい。また、Ｔ秒間は穀物が乾燥機２中
を一巡するいわゆる１パスに要する時間あるい
は、乾燥部６内に位置する穀物を排出するのに要
する時間などに設定することもできる。 The circulation is timed for T seconds at 210 to provide minimal circulation and reduce mechanical damage to the grain. This circulation may be performed by operating only the circulation motor 100 for T seconds at predetermined time intervals to perform intermittent circulation, or by operating together with the exhaust motor 98 for T seconds to perform intermittent ventilation and circulation. Further, T seconds can be set to the time required for so-called one pass in which the grain goes around the dryer 2, or the time required to discharge the grain located in the drying section 6.
２１０でＴ秒を経過したら、２１１へ進み循環
を停止する。次いで２１２へ進み、停止スイツチ
６０がオンになつているかどうかを判断する。オ
ンの場合即ちYESの場合、２１３へ進んで停止
処理を行う。NOの場合即ち通風を必要と判断し
て停止スイツチ６０が押されてないときは、２０
１へジヤンプして前述したルーチンを進む。 When T seconds have elapsed at 210, the process advances to 211 and the circulation is stopped. The process then proceeds to 212, where it is determined whether the stop switch 60 is turned on. If it is on, that is, if it is YES, the process advances to 213 and a stop process is performed. In the case of NO, that is, when it is judged that ventilation is necessary and the stop switch 60 is not pressed, the 20
Jump to 1 and proceed through the routine described above.
このように、乾燥機２の乾燥運転開始前や乾燥
運転休止中等の非乾燥運転状態において、張込ま
れた穀物の水分値が所定値以上のときには排風機
モータにより通風されるので、蒸れ等による品質
劣化を防止することができ、また、乾燥機の乾燥
運転開始前や乾燥運転休止中等の非乾燥運転状態
において、所定以上の穀物張込量でかつ穀温のと
きのみ通風に加えて所定時間だけ循環させるの
で、機械的損傷が低減する。 In this way, before drying operation of the dryer 2 is started or in a non-drying operation state such as when drying operation is stopped, if the moisture level of the loaded grain is higher than a predetermined value, ventilation is carried out by the exhaust fan motor, which prevents stuffiness etc. It is possible to prevent quality deterioration, and in addition to ventilation for a specified period of time, only when the amount of grain loaded is above a specified level and the grain temperature is high, before the start of drying operation of the dryer or during non-drying operation such as when drying operation is stopped. Mechanical damage is reduced because the
図はこの考案の実施例を示し、第１図は循環型
穀物乾燥機の縦断面図、第２図は制御盤の正面
図、第３図は制御装置の回路の概略を示すブロツ
ク図、第４図はこの考案装置の動作のフローチヤ
ートを示す図である。
図において、２は循環型穀物乾燥機、４は貯留
部、６は乾燥部、８は集穀部、１６は水分計、１
８は穀温センサ、５８は通風スイツチ、６０は停
止スイツチ、６４は穀物量設定スイツチ、８２は
データ処理回路、９８は排風機モータ，１００は
循環モータである。
The figures show an embodiment of this invention; Fig. 1 is a longitudinal sectional view of a circulating grain dryer, Fig. 2 is a front view of the control panel, Fig. 3 is a block diagram showing the outline of the circuit of the control device, and Fig. FIG. 4 is a flowchart showing the operation of this invented device. In the figure, 2 is a circulating grain dryer, 4 is a storage section, 6 is a drying section, 8 is a grain collection section, 16 is a moisture meter, 1
8 is a grain temperature sensor, 58 is a ventilation switch, 60 is a stop switch, 64 is a grain amount setting switch, 82 is a data processing circuit, 98 is an exhaust fan motor, and 100 is a circulation motor.
Claims (1)
を流通させ、この乾燥部と貯留部との間に穀物を
循環させて乾燥を行う循環型穀物乾燥機におい
て、貯留部に張込まれた穀物の水分値を検知する
水分計と、前記乾燥機の非乾燥運転状態において
前記水分計で検知した水分値が所定値以上のとき
に少なくとも穀物の通風手段を動作制御する通風
制御手段と、前記穀物の温度を検知する穀温セン
サと、前記乾燥機の非乾燥運転状態において前記
張込まれた穀物の張込量が所定量以上かつ前記穀
温センサによる検知温度が所定温度以上のときに
前記通風制御手段の動作に加えて所定時間、穀物
の循環手段を動作制御する循環制御手段とを設け
たことを特徴とする循環型穀物乾燥機の通風制御
装置。 In a circulating grain dryer that is equipped with ventilation means and circulation means, circulates hot air through a drying section, and circulates grain between this drying section and a storage section for drying. a moisture meter for detecting a moisture value of the grain; a ventilation control means for controlling the operation of at least a ventilation means for the grain when the moisture value detected by the moisture meter is equal to or higher than a predetermined value in a non-drying operation state of the dryer; a grain temperature sensor that detects the temperature of the grain; What is claimed is: 1. A ventilation control device for a circulating grain dryer, characterized in that a circulation control means is provided for controlling the operation of a grain circulation means for a predetermined period of time in addition to the operation of the ventilation control means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP428483U JPS59110891U (en) | 1983-01-18 | 1983-01-18 | Ventilation control device for circulating grain dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP428483U JPS59110891U (en) | 1983-01-18 | 1983-01-18 | Ventilation control device for circulating grain dryer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59110891U JPS59110891U (en) | 1984-07-26 |
| JPS6314307Y2 true JPS6314307Y2 (en) | 1988-04-21 |
Family
ID=30135877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP428483U Granted JPS59110891U (en) | 1983-01-18 | 1983-01-18 | Ventilation control device for circulating grain dryer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59110891U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008051398A (en) * | 2006-08-24 | 2008-03-06 | Yamamoto Co Ltd | Grain drier |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57124680A (en) * | 1981-01-24 | 1982-08-03 | Yamamoto Mfg | Drying of grain particles |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5934874Y2 (en) * | 1979-12-05 | 1984-09-27 | 株式会社 山本製作所 | Grain ventilation drying equipment |
-
1983
- 1983-01-18 JP JP428483U patent/JPS59110891U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57124680A (en) * | 1981-01-24 | 1982-08-03 | Yamamoto Mfg | Drying of grain particles |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59110891U (en) | 1984-07-26 |
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