JP3243819B2 - Hot air temperature correction method for grain dryer - Google Patents
Hot air temperature correction method for grain dryerInfo
- Publication number
- JP3243819B2 JP3243819B2 JP02771492A JP2771492A JP3243819B2 JP 3243819 B2 JP3243819 B2 JP 3243819B2 JP 02771492 A JP02771492 A JP 02771492A JP 2771492 A JP2771492 A JP 2771492A JP 3243819 B2 JP3243819 B2 JP 3243819B2
- Authority
- JP
- Japan
- Prior art keywords
- hot air
- moisture
- air temperature
- grain
- drying speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Feedback Control In General (AREA)
- Drying Of Solid Materials (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、穀粒乾燥機の熱風温
度補正方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for correcting hot air temperature of a grain dryer.
【０００２】[0002]
【従来の技術】従来は、張込穀粒量等によって設定され
た温度の熱風が熱風装置から発生し、この熱風に乾燥室
を繰出し流下される穀粒が晒されることにより乾燥さ
れ、乾燥中、循環する穀粒の一部は、水分センサにより
その水分が検出され、この検出穀粒水分が設定仕上目標
水分に達すると、穀粒の乾燥が終了したとして乾燥が停
止される。2. Description of the Related Art Conventionally, hot air of a temperature set according to the amount of grain embedded or the like is generated from a hot air device, and the grains which are drawn out of a drying chamber and exposed to the hot air are dried by drying. The moisture of a part of the circulating grains is detected by a moisture sensor, and when the detected grain moisture reaches the set finish target moisture, the drying of the grains is stopped as the drying of the grains is completed.
【０００３】この乾燥中は、張込穀粒量等により予め設
定された熱風温度と熱風装置から発生して検出された熱
風とが比較され、相違していると設定熱風温度と同じ温
度になるように熱風装置が制御されて乾燥される。[0003] During the drying, the hot air temperature set in advance based on the amount of grain and the like and the hot air generated and detected by the hot air device are compared, and if they are different, the temperature becomes the same as the set hot air temperature. The hot air device is controlled as described above and dried.
【０００４】[0004]
【発明が解決しようとする課題】従来の熱風温度の制御
は、乾燥作業中、予め設定された熱風温度と熱風装置か
ら発生して検出された熱風温度とが比較され、相違して
いると設定熱風温度と同じ温度になるように熱風装置が
制御される方法であった。In the conventional hot air temperature control, during a drying operation, a preset hot air temperature is compared with a hot air temperature detected and generated from a hot air device, and it is determined that there is a difference. This is a method in which the hot air device is controlled so as to have the same temperature as the hot air temperature.
【０００５】従来の方法では、熱風温度が張込穀粒量等
により予め設定されているだけのため、水分差、水分の
ばらつき、及び所定時間当たりの水分差から算出される
穀粒の平均乾燥速度の相互の影響が加味されておらず、
仕上がり水分が安定しないという欠点があった。[0005] In the conventional method, since the hot air temperature is simply set in advance by the amount of the stuffed grain, etc., the moisture difference, the variation of the moisture, and the average dryness of the grain calculated from the moisture difference per a predetermined time period. The mutual influence of speed is not taken into account,
There was a drawback that the finished moisture was not stable.
【０００６】[0006]
【課題を解決するための手段】この発明は、前記欠点を
解決しようとするもので、乾燥室へ熱風を通風する熱風
装置と、循環する穀粒の水分を検出する水分センサ、該
水分のばらつきを算出する水分ばらつき算出手段、熱風
温度を検出する熱風温度検出手段、仕上目標水分を設定
する設定手段、および穀粒の平均乾燥速度を算出する乾
燥速度算出手段を有す穀粒乾燥機において、水分センサ
により検出した穀粒の水分と設定手段により設定した仕
上目標水分との水分差、水分ばらつき算出手段により算
出した水分のばらつき、及び乾燥速度算出手段により算
出した穀粒の平均乾燥速度と熱風温度の補正量との関係
をあらわすファジィルールを予め記憶する記憶手段を設
け、前記検出した水分差、水分のばらつき、及び穀粒の
平均乾燥速度を入力として、前記記憶手段に記憶された
ファジィルールに基づいて、熱風温度の補正量に対する
ファジィ推論を行い、該ファジィ推論により決定された
補正量により熱風温度を設定し、該設定された熱風温度
により前記熱風装置が制御されることを特徴とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks, and has a hot air device for blowing hot air to a drying chamber, a moisture sensor for detecting moisture in circulating grains, and a variation in the moisture. In a grain dryer having a moisture variation calculating means for calculating the hot air temperature detecting means for detecting the hot air temperature, a setting means for setting the finish target moisture, and a drying speed calculating means for calculating the average drying speed of the grains, Moisture difference between the moisture of the grain detected by the moisture sensor and the finish target moisture set by the setting means, the variation of the moisture calculated by the moisture variation calculating means, and the average drying speed and hot air of the grain calculated by the drying speed calculating means A storage means for storing in advance a fuzzy rule indicating a relationship with the temperature correction amount is provided, and the detected moisture difference, moisture variation, and average drying speed of the grain are stored. Based on the fuzzy rules stored in the storage means, fuzzy inference for the correction amount of the hot air temperature is performed, the hot air temperature is set by the correction amount determined by the fuzzy inference, and the hot air temperature is set by the set hot air temperature. The hot air device is controlled.
【０００７】[0007]
【発明の作用と効果】この発明により、熱風装置より発
生する熱風温度が、水分センサが検出する穀粒水分と仕
上目標水分との水分差、そのときに検出した穀粒水分の
ばらつき及びそれまでに検出した穀粒の平均乾燥速度を
入力とするファジィルールに基づいて補正されるため、
その時点における穀粒に最も適した熱風温度を自動的に
設定できるという利点があり、これにより仕上り水分が
安定すると共に、検出した穀粒の水分のばらつきが小さ
くなり精度が高まる。According to the present invention, the temperature of the hot air generated from the hot air device is determined by the difference between the grain moisture detected by the moisture sensor and the finish target moisture, the variation of the grain moisture detected at that time, and It is corrected based on the fuzzy rule that inputs the average drying speed of the grain detected in
There is an advantage that the hot air temperature most suitable for the grain at that time can be automatically set, whereby the finished moisture is stabilized, and the variation in the moisture detected in the grain is reduced, thereby increasing the accuracy.
【０００８】[0008]
【実施例】以下、本発明の一実施例を図面に基づいて説
明する。図例は、穀粒を乾燥する循環型の穀粒乾燥機１
に穀粒の水分を検出する水分センサ２及び熱風が発生す
るバーナ４等を内装した熱風装置３を装着した状態を示
す。An embodiment of the present invention will be described below with reference to the drawings. The figure shows a circulation type grain dryer 1 for drying grains.
1 shows a state in which a moisture sensor 2 for detecting moisture in grains and a hot blast device 3 equipped with a burner 4 for generating hot air are mounted.
【０００９】前記乾燥機１は、前後方向に長い長方形状
で機壁５上部には、移送螺旋を回転自在に内装した移送
樋６及び天井板７を設け、この天井板７下側には穀粒を
貯留する穀粒貯留室８を形成している。穀粒乾燥室９，
９は、該貯留室８下側において、左右両側の排風室１
０，１０と中央の送風室１１との間に設け、これら乾燥
室９，９下部には、穀粒を繰出し流下させる繰出バルブ
１２を夫々回転自在に軸支している。該送風室１１内に
は熱風温度を検出する熱風温センサ１１′を設けてい
る。The drying machine 1 is provided with a transfer trough 6 and a ceiling plate 7 having a rectangular shape which is long in the front-rear direction and in which a transfer spiral is rotatably provided above the machine wall 5, and a grain below the ceiling plate 7. A grain storage chamber 8 for storing grains is formed. Grain drying room 9,
9 is an exhaust chamber 1 on both the left and right sides below the storage chamber 8.
0, 10 and a central blowing chamber 11, and at the lower part of the drying chambers 9, 9 are respectively rotatably supported feed valves 12 for feeding and flowing down grains. A hot air temperature sensor 11 ′ for detecting hot air temperature is provided in the blower chamber 11.
【００１０】集穀樋１３は、移送螺旋を回転自在に軸支
し、該各乾燥室９，９下側に設けて連通させている。前
記熱風装置３の前記バーナ４は、バーナケース１４に内
装して設け、このバーナケース１４は、前記機壁５正面
側において、前記送風室１１入口側に対応すべくこの機
壁５外側面に着脱自在に設け、又このバーナ４、前記水
分センサ２及び前記乾燥機１を張込、乾燥及び排出の各
作業別に始動及び停止操作する前記操作装置１５を前側
の該機壁５に着脱自在に設けている。The grain collecting gutter 13 rotatably supports a transfer spiral, and is provided below each of the drying chambers 9 and 9 so as to communicate with each other. The burner 4 of the hot air device 3 is provided inside a burner case 14, and the burner case 14 is provided on the outer surface of the machine wall 5 on the front side of the machine wall 5 so as to correspond to the inlet side of the blower chamber 11. The operating device 15 which is detachably provided and which starts and stops the burner 4, the moisture sensor 2 and the dryer 1 for each of the work of inserting, drying and discharging is detachably attached to the machine wall 5 on the front side. Provided.
【００１１】排風機１６は、前記背面側の機壁５で、左
右の前記排風室１０，１０に連通すべく設けた排風路室
１７中央後部側排風胴１８に設け、又この背面側の機壁
５には、この排風機１６を回転駆動する排風機モータ１
９を設けている。２０は、バルブモータで前記繰出バル
ブ１２，１２を減速機構を介して回転駆動させている。An exhaust fan 16 is provided on the rear wall 5 on the rear side of the rear wall 5 at the center rear side of the exhaust path chamber 17 provided to communicate with the left and right exhaust chambers 10 on the rear wall 5. A fan motor 1 for rotating and driving the fan 16 is provided on the side wall 5.
9 are provided. Reference numeral 20 denotes a valve motor for rotating the delivery valves 12, 12 via a speed reduction mechanism.
【００１２】燃料ポンプ２１は、燃料バルブを有して、
前記バーナケース１４下板外側に設け、この燃料バルブ
の開閉により、この燃料ポンプ２１で燃料タンク２２内
の燃料を吸入して、前記バーナ４へ供給させている。送
風機２３は、上板外側に設け、変速用の送風機モータ２
４で変速回転駆動させ、供給燃料量に見合った燃焼用空
気を該バーナ４へこの送風機２３で送風させている。The fuel pump 21 has a fuel valve,
The fuel pump 21 sucks the fuel in the fuel tank 22 and supplies the fuel to the burner 4 by opening and closing the fuel valve. The blower 23 is provided on the outer side of the upper plate, and the blower motor 2 for shifting is provided.
4, the combustion air corresponding to the supplied fuel amount is blown to the burner 4 by the blower 23.
【００１３】拡散盤２５は、前記移送樋６底板の前後方
向中央部で、移送穀粒を前記貯留室８へ供給する供給口
の下側に設け、この貯留室８へ穀粒を均等に拡散還元さ
せている。前記昇穀機２６は、前記機壁５前側外部に設
けられ、内部にはバケットコンベア２７付ベルトを張設
してなり、上端部は、前記移送樋６始端部との間におい
て投出筒２８を設けて連通させ、下端部は、前記集穀樋
１３終端部との間において供給樋２９を設けて連通させ
ている。The diffusion board 25 is provided at the center in the front-rear direction of the bottom plate of the transfer gutter 6 and below the supply port for supplying the transfer kernels to the storage chamber 8, so that the kernels are evenly diffused into the storage chamber 8. Is being reduced. The grain raising machine 26 is provided outside the front side of the machine wall 5 and has a belt with a bucket conveyor 27 stretched inside. The upper end is provided with a discharge cylinder 28 between the transfer gutter 6 and the start end. The lower end portion is provided with a supply gutter 29 between the end portion of the grain collecting gutter 13 and communicates therewith.
【００１４】３０は昇穀機モータで、該バケットコンベ
ア２７付ベルト、前記移送樋６内の前記移送螺旋、前記
拡散盤２５及び前記集穀樋１３内の前記移動螺旋等を回
転駆動させている。前記水分センサ２は、前記昇穀機２
６の上下方向ほぼ中央部に設け、この水分センサ２は、
前記操作装置１５からの電気的測定信号の発信により、
水分モータ３１が回転してこの水分センサ２の各部が回
転駆動され、前記バケットコンベア２７で上部へ搬送中
に落下する穀粒を受け、繰込ロール３２で一粒づつ繰込
み検出ロール３３，３３間で、例えば３２粒の穀粒を挾
圧粉砕しながら、この粉砕穀粒３２粒の平均値を算出さ
せて一回の平均穀粒水分とし、この検出を３回繰返して
この３回の平均穀粒水分を算出させ、この算出の３回の
平均値を検出穀粒水分として表示させている。Numeral 30 is a grain raising motor, which rotationally drives the belt with the bucket conveyor 27, the transfer spiral in the transfer gutter 6, the moving spiral in the diffusion plate 25 and the grain collecting gutter 13, and the like. . The moisture sensor 2 includes the grain raising machine 2
6 is provided substantially at the center in the vertical direction, and the moisture sensor 2
By transmitting the electrical measurement signal from the operating device 15,
The moisture motor 31 rotates to rotate the respective parts of the moisture sensor 2, and receives the grains falling during the transport to the upper part by the bucket conveyor 27, and the feeding rolls 32 detect the feeding drops 33, 33 one by one. In the meantime, for example, while nipping and crushing 32 grains, the average value of the 32 crushed grains is calculated as one average grain moisture. This detection is repeated three times, and the average of the three grains is calculated. The grain moisture is calculated, and the average value of the three calculations is displayed as the detected grain moisture.
【００１５】前記操作装置１５は、箱形状でこの箱体の
表面板には、前記乾燥機１、前記水分センサ２及び前記
バーナ４等を張込、乾燥及び排出の各作業別に始動操作
する各始動スイッチ３４、停止操作する停止スイッチ３
５、穀粒の仕上目標水分を操作位置によって設定する水
分設定抓み３６、前記バーナ４から発生する熱風温度を
操作位置によって設定する穀物種類設定抓み３７及び張
込量設定抓み３８、各種表示項目をデジタル表示する表
示部３９及びモニタ表示等を設けている。The operating device 15 has a box shape, and the dryer 1, the moisture sensor 2, the burner 4 and the like are mounted on the surface plate of the box body, and the starting operation is performed for each operation of drying and discharging. Start switch 34, stop switch 3 for stopping operation
5. Moisture setting knob 36 for setting the finishing target moisture of the grain according to the operation position, grain type setting knob 37 for setting the hot air temperature generated from the burner 4 according to the operation position, and inset amount setting knob 38. A display unit 39 for digitally displaying display items, a monitor display, and the like are provided.
【００１６】制御装置４０は、前記操作装置１５内に設
けられ、前記水分センサ２及び前記熱風温センサ１１′
が検出する検出値、水分センサ２の検出値にもとづく水
分ばらつき、該各スイッチ３４，３５の操作及び該各設
定抓み３６，３７，３８の操作等が入力され、これらの
入力を算術論理演算及び比較演算するＣＰＵ４１等より
なり、該ＣＰＵ４０内にはファジィ推論を行うファジィ
制御器を有し、又このＣＰＵ４１で前記各モータ１９，
２０，２４，３０，３１、前記燃料バルブ及び前記燃料
ポンプ２１等を始動、停止及び制御等を行う構成であ
る。該各設定抓み３６，３７，３８はロータリースイッ
チ方式とし、操作位置によって所定の数値及び種類等が
設定される。The control device 40 is provided in the operation device 15 and includes the moisture sensor 2 and the hot air temperature sensor 11 '.
, An operation of each of the switches 34 and 35, an operation of each of the setting knobs 36, 37 and 38, and the like are input. And a fuzzy controller for performing fuzzy inference. The CPU 41 controls the motors 19 and
20, 24, 30, 31, the fuel valve, the fuel pump 21 and the like are started, stopped, controlled, and the like. Each of the setting knobs 36, 37, and 38 is a rotary switch type, and predetermined numerical values, types, and the like are set according to operation positions.
【００１７】前記制御装置４０による熱風温度の補正は
下記の如く行われる。即ち、前記水分センサ２の前記検
出ロール３３，３３間で穀粒を１回に、例えば３２粒挾
圧粉砕のときの１粒ごとの電圧値が検出されて該ＣＰＵ
４１へ入力されて穀粒水分値に置換され、この入力から
３２粒の穀粒水分の平均値が算出され、この検出が３回
繰返し行われ、この３回の平均穀粒水分値が算出され、
この３回の平均穀粒水分値が１回の検出穀粒水分として
前記表示部３９へ表示される。The correction of the hot air temperature by the controller 40 is performed as follows. That is, the voltage value of each grain is detected between the detection rolls 33, 33 of the moisture sensor 2 at one time, for example, at the time of pressing and grinding of 32 grains.
It is input to 41 and replaced with the grain moisture value. From this input, the average value of the grain moisture of 32 grains is calculated. This detection is repeated three times, and the three average grain moisture values are calculated. ,
These three average grain moisture values are displayed on the display unit 39 as one detected grain moisture value.
【００１８】前記穀物種類設定抓み３７と前記張込量設
定抓み３８の操作とで設定された前記熱風装置３の前記
バーナ４から発生する設定熱風温度は、下記の如く補正
される。 設定熱風温度＝ｆ（穀物種類、張込量）＋熱風温度補正
量（Ｔ） すなわち、設定熱風温度は、穀物種類と張込量により設
定される基準となる熱風温度ｆ（穀物種類，張込量）に
熱風温度補正量（Ｔ）を加えた温度である。The set hot air temperature generated from the burner 4 of the hot air device 3 set by the operation of the grain type setting knob 37 and the inset amount setting knob 38 is corrected as follows. Set hot air temperature = f (grain type, stake amount) + hot air temperature correction amount (T) That is, the set hot air temperature is a hot air temperature f (grain type, stake amount) which is a reference set by the grain type and the stake amount Volume) to the hot air temperature correction amount (T).
【００１９】ところで、乾燥中における穀物の水分の安
定化要因として、穀粒の水分値、水分のばらつき、及び
平均乾燥速度がある。このため、前記３要因を変数とし
て下記のごとくファジィルールを設定し、熱風温度補正
量（Ｔ）に前記３要因の相互の影響が加味されるように
する。Factors for stabilizing the water content of a grain during drying include a water value of the grain, a variation in the water content, and an average drying speed. For this reason, a fuzzy rule is set as follows using the three factors as variables so that the mutual influence of the three factors is added to the hot air temperature correction amount (T).
【００２０】穀粒が高水分の場合は、外皮（籾殻）に水
分が多量に分布しており、乾燥を促進するためにはこの
外皮の水分を除去し、玄米中の水分を表面に移流させる
必要がある。一方、乾燥が進み外皮が乾燥し、玄米表面
の水分も少ない水分分布状態では熱風温度を高くして
も、玄米表面と玄米中心部との水分勾配が急激になるだ
けで乾燥が促進されるわけではない。このため、熱風温
度と水分の関係は高水分ほど熱風温度を高くし、低水分
ほど熱風温度を低くした方が乾燥効率がよいことになる
が、水分の高低を基準である仕上目標水分からの値とし
た方が処理し易い。When the grain has a high moisture content, a large amount of moisture is distributed in the hull (rice hull). In order to promote drying, the moisture in the hull is removed and the moisture in brown rice is transferred to the surface. There is a need. On the other hand, in a moisture distribution state where the outer skin is dried and the brown rice surface has less moisture, even if the hot air temperature is increased, the drying is promoted only by a sharp water gradient between the brown rice surface and the central part of brown rice. is not. For this reason, the relationship between hot air temperature and moisture is such that the higher the moisture, the higher the hot air temperature, and the lower the temperature, the lower the hot air temperature, the better the drying efficiency. The value is easier to process.
【００２１】従って、第一のファジィルールは穀粒の測
定水分と仕上目標水分との差（水分差）が大きいほど熱
風温度を高く設定する。また、第一のファジィルールで
は、水分のばらつきが加味されておらず、穀粒の測定水
分値は多粒の測定値を平均化処理するため、水分のばら
つきが大きいと、低水分側の穀粒に対しては、熱風温度
が高く、乾燥効率が低い制御となる。従って、第二のフ
ァジィルールでは、水分のばらつきが大きいほど熱風温
度を低くする。Therefore, the first fuzzy rule sets the hot air temperature higher as the difference (moisture difference) between the measured moisture of the grain and the finish target moisture is larger. In addition, in the first fuzzy rule, the variation in moisture is not taken into account, and the measured moisture value of the grain averages the measured value of multiple grains. For the grains, the control is such that the hot air temperature is high and the drying efficiency is low. Therefore, in the second fuzzy rule, the hot air temperature is lowered as the variation in moisture is larger.
【００２２】さらに、前記ファジィルールだけでは、熱
風温度の補正の拮抗が生じ、熱風温度補正が有効に作用
しない可能性があり、また、前記第一のファジィルール
では乾燥が進むにつれて熱風温度を下げる制御になるた
め平均乾燥速度が低下する。これを補うために、平均乾
燥速度を使い、熱風温度補正の安定化を図る。従って、
第三のファジィルールでは、それまでの平均乾燥速度が
速いほど、穀粒への熱障害を防止するため熱風温度を低
くし、平均乾燥速度が遅いほど、熱風温度を高くする。Further, with the fuzzy rule alone, there is a possibility that the correction of the hot air temperature may be antagonized and the hot air temperature correction may not work effectively. In the first fuzzy rule, the hot air temperature is lowered as drying proceeds. The average drying speed decreases because of the control. To compensate for this, the average drying speed is used to stabilize the hot air temperature correction. Therefore,
In the third fuzzy rule, the hot air temperature is lowered to prevent heat damage to the grains as the average drying speed up to that time is increased, and the hot air temperature is raised as the average drying speed is slower.
【００２３】次に、ファジィ推論で用いる前記穀粒の水
分差、水分のばらつき、及び平均乾燥速度の３変数及び
補正温度に対するメンバーシップ関数を図２、図３、図
４及び図６に夫々示す。横軸は夫々の入出力値、縦軸は
入出力値に対する度合い（グレード）である。穀粒の水
分差に関するファジィ集合は１．５％ごとの５段階と
し、水分のばらつきのファジィ集合は０．０２％ごとの
５段階とし、平均乾燥速度のファジィ集合は０．２％／
ｈｒごとの５段階とし、熱風温度の温度補正量のファジ
ィ集合は基準となる熱風温度の補正量を０として、正負
に１．３度ごとの３段階のファジィ集合としている。Next, FIG. 2, FIG. 3, FIG. 4, and FIG. 6 show the three variables of the moisture difference of the grain, the variation of the moisture, the average drying rate, and the correction temperature used in the fuzzy inference, respectively. . The horizontal axis indicates the input / output values, and the vertical axis indicates the degree (grade) with respect to the input / output values. The fuzzy set relating to the moisture difference of the grain has five steps of 1.5%, the fuzzy set of the variation in water has five steps of 0.02%, and the fuzzy set of the average drying rate is 0.2% /
There are five stages for each hr, and the fuzzy set of the temperature correction amount of the hot air temperature is a three-stage fuzzy set of 1.3 degrees for each of the positive and negative 1.3 degrees with the reference correction amount of the hot air temperature as 0.
【００２４】そして、前記穀粒の水分差、水分のばらつ
き、平均乾燥速度及び熱風温度補正量に対するメンバー
シップ関数を前記ファジィルールに当てはめて、図５の
ように設定する。図５において、ルール（Ｒ）はルール
番号を示し、例えば、 Ｒ＝１，Ｍ＝ＰＬ，Ｂ＝ＮＬ，Ｋ＝ＮＬ，Ｔ＝ＰＬ では、以下を意味する。（穀粒の水分差が大）で、且つ
（水分のばらつきが小）で、且つ（平均乾燥速度が小）
の場合は（熱風温度補正量を大）にする。Then, the membership functions for the moisture difference of the grains, the variation of the moisture, the average drying speed, and the hot air temperature correction amount are applied to the fuzzy rules and set as shown in FIG. In FIG. 5, a rule (R) indicates a rule number. For example, R = 1, M = PL, B = NL, K = NL, T = PL means the following. (Water difference in grain is large) and (Water variation is small) and (Average drying speed is small)
In the case of (1), the amount of hot air temperature correction is increased.
【００２５】図７は、穀粒の水分差（Ｍ）が７％、水分
のばらつき（Ｂ）が０．０２５％、平均乾燥速度（Ｋ）
が０．３％のときの熱風温度補正量（Ｔ）の決定方法を
しめす。前記穀粒の水分差に当てはまるファジィ集合は
（ＰＬ，ＰＳ）であり、前記水分のばらつきに当てはま
るファジィ集合は（ＮＬ，ＮＳ）であり，前記平均乾燥
速度に当てはまるファジィ集合は（ＮＬ，ＮＳ）であ
る。これらのファジィ集合のうち、３つの変数が同時に
作用しているルールはＲ＝１、２、および４である。FIG. 7 shows that the moisture difference (M) of the grain is 7%, the variation (B) of the moisture is 0.025%, and the average drying speed (K).
Is determined when the hot air temperature correction amount (T) is 0.3%. The fuzzy set that applies to the moisture difference of the grain is (PL, PS), the fuzzy set that applies to the variation in moisture is (NL, NS), and the fuzzy set that applies to the average drying rate is (NL, NS). It is. Of these fuzzy sets, the rules in which three variables act simultaneously are R = 1, 2, and 4.
【００２６】この選択されたルールにおいて、夫々の変
数のファジィ集合のグレード値のうち、最小のグレード
値を採用し、熱風温度補正量（Ｔ）に関するメンバーシ
ップ関数（ＰＭ，ＰＬ）に前記グレード値を掛け合わせ
る。（図７斜線部）つぎに、選択されたルールごとに掛
け合わされた熱風温度補正量（Ｔ）に関するメンバーシ
ップ関数を重ね合わせることにより、前記３変数が影響
している熱風温度補正量（Ｔ）の新たなメンバーシップ
関数が作成され、このメンバーシップ関数の重心位置を
算出し、０（Ｚ0）から重心位置（ＸＡ）までの距離に
よって熱風温度補正量（Ｔ）が決定される。In the selected rule, the minimum grade value among the grade values of the fuzzy set of each variable is adopted, and the grade value is added to the membership function (PM, PL) relating to the hot air temperature correction amount (T). Multiply by (The hatched portion in FIG. 7) Next, by superimposing the membership function on the hot air temperature correction amount (T) multiplied for each selected rule, the hot air temperature correction amount (T) affected by the three variables is superimposed. Is calculated, the position of the center of gravity of this membership function is calculated, and the hot air temperature correction amount (T) is determined based on the distance from 0 (Z0) to the position of the center of gravity (XA).
【００２７】なお、０（Ｚ0）位置よりＸ軸方向の重心
位置（ＸＡ）が（イ）方向側であれば＋側への設定熱風
温度の補正となり、（ロ）方向側であれば−側への設定
熱風温度の補正となる。このようにすると、穀粒水分
差、水分のばらつき、平均乾燥速度夫々の相互の影響を
熱風温度に反映することができ、その時点における穀粒
に最も適した熱風温度を自動的に設定できる。If the position of the center of gravity (XA) in the X-axis direction from the 0 (Z0) position is in the (a) direction, the set hot air temperature is corrected to the + side. The hot air temperature setting is corrected. In this way, the mutual influence of each of the grain moisture difference, the variation in moisture, and the average drying speed can be reflected on the hot air temperature, and the hot air temperature most suitable for the grain at that time can be automatically set.
【００２８】例えば基準となる熱風温度が４５℃に設定
され乾燥されていたとすると、図７より算出された補正
量は、０（Ｚ0）位置から重心位置（ＸＡ）までの距離
である＋側の２．９℃になり、４５℃＋２．９℃で設定
熱風温度は４７．９℃に補正され、この補正された設定
熱風温度の４７．９℃により熱風装置３は制御されて穀
粒は乾燥される。For example, assuming that the reference hot air temperature is set to 45 ° C. and drying is performed, the correction amount calculated from FIG. 7 is the + side which is the distance from the 0 (Z0) position to the center of gravity position (XA). At 2.9 ° C, the set hot air temperature is corrected to 47.9 ° C at 45 ° C + 2.9 ° C, and the hot air device 3 is controlled by the corrected set hot air temperature of 47.9 ° C to dry the grains. Is done.
【００２９】なお、図７は、ＭＡＸ−ＭＩＮ法によって
メンバーシップ関数のうち、一番低いグレードが採用さ
れて、熱風温度補正量が決定される例であり、穀粒水分
差、水分ばらつき及び平均乾燥速度共に、各ファジィ集
合の範囲内にないと検出されたときは、データなしと処
理される。併せて、前記制御装置４０は乾燥運転中、前
記補正されて設定された熱風温度と前記熱風温センサ１
１′が検出する検出熱風温度とが比較され、相違してい
るとこれら設定熱風温度と同じ温度になるように、前記
燃料バルブの開閉回数が増減制御され、前記燃料ポンプ
２１で吸入して前記バーナ４へ供給する燃料量が増減制
御される。FIG. 7 shows an example in which the hot air temperature correction amount is determined by adopting the lowest grade among the membership functions according to the MAX-MIN method. When it is detected that the drying speed is not within the range of each fuzzy set, it is determined that there is no data. At the same time, during the drying operation, the control device 40 controls the corrected hot air temperature and the hot air temperature sensor 1.
The detected hot air temperature detected by 1 ′ is compared, and if they are different, the number of times of opening and closing the fuel valve is controlled to increase or decrease so that the temperature becomes the same as the set hot air temperature. The amount of fuel supplied to the burner 4 is controlled to increase or decrease.
【００３０】又前記水分センサ２が前記水分設定抓み３
６を操作して設定した仕上目標水分と同じ穀粒水分を検
出すると、穀粒の乾燥が終了したとして、前記乾燥機１
を自動停止して穀粒の乾燥が停止される。The moisture sensor 2 is connected to the moisture setting knob 3
6, when the same grain moisture as the finish target moisture set is detected, it is determined that the drying of the grain has been completed.
Is automatically stopped to stop the drying of the grain.
図は、この発明の一実施例を示す。 The figure shows an embodiment of the present invention.
【図１】ブロック図。FIG. 1 is a block diagram.
【図２】穀粒水分差のメンバーシップ関数を表す図。FIG. 2 is a diagram showing a membership function of a grain moisture difference.
【図３】穀粒水分ばらつきのメンバーシップ関数を表す
図。FIG. 3 is a diagram showing a membership function of grain moisture variation.
【図４】穀粒乾燥速度のメンバーシップ関数を表す図。FIG. 4 is a diagram showing a membership function of a grain drying rate.
【図５】穀粒水分差、穀粒水分ばらつき及び平均穀粒乾
燥速度と熱風温度補正量とのファジィルール。FIG. 5 is a fuzzy rule of grain moisture difference, grain moisture variation, average grain drying rate, and hot air temperature correction amount.
【図６】熱風温度補正量のメンバーシップ関数を表す
図。FIG. 6 is a diagram illustrating a membership function of a hot air temperature correction amount.
【図７】熱風温度補正量がファジィ推論により決定され
る手順を示す説明図。FIG. 7 is an explanatory diagram showing a procedure in which a hot air temperature correction amount is determined by fuzzy inference.
【図８】穀粒乾燥機の一部破断せる全体側面図。FIG. 8 is a partially broken whole side view of the grain dryer.
【図９】図８のＡ−Ａ拡大断面図。FIG. 9 is an enlarged sectional view taken along line AA of FIG. 8;
【図１０】穀粒乾燥機の一部の一部破断せる拡大正面
図。FIG. 10 is an enlarged front view in which a part of the grain dryer is partially broken.
【図１１】水分センサの拡大側断面図。FIG. 11 is an enlarged side sectional view of the moisture sensor.
【図１２】水分センサの拡大背面図。FIG. 12 is an enlarged rear view of the moisture sensor.
２ 水分センサ ３ 熱風装置 ８ 穀粒貯留室 ９ 穀粒乾燥室 2 Moisture sensor 3 Hot air device 8 Grain storage room 9 Grain drying room
フロントページの続き (56)参考文献 特開 昭61−246580（ＪＰ，Ａ) 特開 昭62−19680（ＪＰ，Ａ) 特開 昭62−178878（ＪＰ，Ａ) 特開 平３−271690（ＪＰ，Ａ) 特開 平５−231775（ＪＰ，Ａ) 特開 昭63−217185（ＪＰ，Ａ) 特開 昭61−49983（ＪＰ，Ａ) 特開 昭62−252882（ＪＰ，Ａ) 特開 昭62−175578（ＪＰ，Ａ) 実開 平１−13491（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F26B 21/06 - 21/10 F26B 25/22,17/14,25/00 Continuation of the front page (56) References JP-A-61-246580 (JP, A) JP-A-62-19680 (JP, A) JP-A-62-178878 (JP, A) JP-A-3-271690 (JP) JP-A-5-231775 (JP, A) JP-A-63-217185 (JP, A) JP-A-61-49983 (JP, A) JP-A-62-252882 (JP, A) 62-175578 (JP, A) JP-A 1-113491 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) F26B 21/06-21/10 F26B 25 / 22,17 / 14,25 / 00
Claims (1)
環する穀粒の水分を検出する水分センサ、該水分のばら
つきを算出する水分ばらつき算出手段、熱風温度を検出
する熱風温度検出手段、仕上目標水分を設定する設定手
段、および穀粒の平均乾燥速度を算出する乾燥速度算出
手段を有す穀粒乾燥機において、水分センサにより検出
した穀粒の水分と設定手段により設定した仕上目標水分
との水分差、水分ばらつき算出手段により算出した水分
のばらつき、及び乾燥速度算出手段により算出した穀粒
の平均乾燥速度と熱風温度の補正量との関係をあらわす
ファジィルールを予め記憶する記憶手段を設け、前記検
出した水分差、水分のばらつき、及び穀粒の平均乾燥速
度を入力として、前記記憶手段に記憶されたファジィル
ールに基づいて、熱風温度の補正量に対するファジィ推
論を行い、該ファジィ推論により決定された補正量によ
り熱風温度を設定し、該設定された熱風温度により前記
熱風装置が制御されることを特徴とする穀粒乾燥機にお
ける熱風温度補正方法。 A hot air device for blowing hot air to a drying chamber;
Moisture sensor for detecting moisture of ringing grain, rose of the moisture
Moisture variation calculating means to calculate the temperature, detect hot air temperature
Hot air temperature detecting means to set the target moisture content
Drying speed calculation to calculate the average drying speed of tiers and grains
Detected by moisture sensor in grain dryer with means
Moisture of finished grain and finish target moisture set by setting means
And the moisture calculated by the moisture variation calculation means
And grain calculated by the drying speed calculation means
The relationship between the average drying speed and the amount of hot air temperature correction
A storage means for storing fuzzy rules in advance is provided,
Discharged water difference, water dispersion, and average drying speed of grain
Fuzzy file stored in the storage means with the degree as an input
Fuzzy inference for hot air temperature correction based on
And the correction amount determined by the fuzzy inference.
The hot air temperature is set, and the hot air temperature is set according to the set hot air temperature.
The grain dryer is characterized in that the hot air device is controlled.
Hot air temperature correction method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02771492A JP3243819B2 (en) | 1992-02-14 | 1992-02-14 | Hot air temperature correction method for grain dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02771492A JP3243819B2 (en) | 1992-02-14 | 1992-02-14 | Hot air temperature correction method for grain dryer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05223456A JPH05223456A (en) | 1993-08-31 |
| JP3243819B2 true JP3243819B2 (en) | 2002-01-07 |
Family
ID=12228674
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02771492A Expired - Fee Related JP3243819B2 (en) | 1992-02-14 | 1992-02-14 | Hot air temperature correction method for grain dryer |
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| CN102445069B (en) * | 2011-12-12 | 2013-12-25 | 中联重科股份有限公司 | Drying roller control method, device and system and drying device |
| CN102706112A (en) * | 2012-05-14 | 2012-10-03 | 鄂尔多斯市中誉能源股份有限公司 | Drying device and drying method for preventing coal from regaining moisture |
| CN104101200B (en) * | 2014-07-23 | 2016-01-20 | 北京科技大学 | A kind of thick-layer grain drying system of be coupled alternating temperature alternation air-flow and vibration and method |
| CN104180635B (en) * | 2014-08-26 | 2016-04-27 | 北京科技大学 | A kind of thick-layer Chinese medicine drying system of alternating temperature alternation air-flow and method |
| CN108534491B (en) * | 2018-06-15 | 2024-05-07 | 吉林大学 | Transverse ventilation static bed grain dryer and control method thereof |
| CN112577294B (en) * | 2020-12-16 | 2023-04-07 | 中南林业科技大学 | Heat pump heat source camellia seed partition drying self-adaptive control method and device |
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