JPH023117B2 - - Google Patents
Info
- Publication number
- JPH023117B2 JPH023117B2 JP56009441A JP944181A JPH023117B2 JP H023117 B2 JPH023117 B2 JP H023117B2 JP 56009441 A JP56009441 A JP 56009441A JP 944181 A JP944181 A JP 944181A JP H023117 B2 JPH023117 B2 JP H023117B2
- Authority
- JP
- Japan
- Prior art keywords
- grains
- grain
- drying
- circulation
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000001035 drying Methods 0.000 claims description 75
- 238000002485 combustion reaction Methods 0.000 claims description 19
- 238000001514 detection method Methods 0.000 claims description 14
- 230000007423 decrease Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 3
- 230000006866 deterioration Effects 0.000 description 10
- 239000003921 oil Substances 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Drying Of Solid Materials (AREA)
Description
【発明の詳細な説明】
本発明は、循環型の穀粒乾燥装置により穀粒を
乾燥する穀粒乾燥方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a grain drying method for drying grains using a circulating grain drying device.
さらに具体的にいえば、乾燥しようとする穀粒
を張込む穀槽と、その穀粒に浴びせる乾燥風（熱
風）を生成する燃焼装置（バーナー装置）と、生
成した乾燥風を前記穀槽内に張込んだ穀粒に対し
送給する送風機と、穀槽の排出口に設けた穀粒繰
出装置と、穀槽の排出口から繰出される穀粒を再
び穀槽の上部に戻すよう循環流動さす穀粒循環装
置とを具備する循環型の穀粒乾燥装置により、穀
粒を循環流動させながら乾燥風を浴びせて、所望
の含水率まで乾燥させるようにする穀粒乾燥方法
についての改良に関する。 More specifically, there is a grain tank into which the grains to be dried are placed, a combustion device (burner device) that generates drying air (hot air) to be applied to the grains, and a combustion device (burner device) that generates drying air (hot air) to be applied to the grains. A blower that blows the grains into the grain tank, a grain feeding device installed at the outlet of the grain tank, and a circulating flow system that returns the grains fed from the outlet of the grain tank back to the top of the grain tank. This invention relates to an improvement in a method for drying grains, in which drying air is applied to the grains while circulating the grains to dry them to a desired moisture content using a circulating grain drying device equipped with a grain circulation device.
上述の如く、循環型の穀粒乾燥装置で乾燥しよ
うとする穀粒は、圃場においてコンバインにより
収穫した籾粒の場合についていえば、水分値が25
％を越えている水分の多い穀粒であり、乾燥の目
的は、自然放置して変質が生じない15％程度の含
水率に乾し上げることである。 As mentioned above, in the case of paddy grains harvested by a combine harvester in the field, the grains to be dried in a circulating grain dryer have a moisture value of 25
The purpose of drying is to dry the grains to a moisture content of about 15%, which will not cause deterioration if left to stand naturally.
ところで、穀粒の乾燥を、循環型の穀粒乾燥装
置により、循環流動させながら、熱風を浴びせる
ことで行なう際、浴びせる熱風の温度が高く、急
激に乾燥が行なわれるようになると、穀粒に変
質・損傷が生ずるようになる。また、循環型の穀
粒乾燥装置の穀槽に張り込む穀粒の量が少ないこ
とで、穀粒循環装置による一回の循環に要する時
間が短くなると、熱風の供給を受けるインターバ
ルが短くなつて、穀粒の乾燥速度（乾減率）が増
大し、同様に穀粒に変質・損傷が生ずるようにな
る。 By the way, when drying grains using a circulation-type grain drying device by spraying hot air with circulation, if the temperature of the hot air sprayed is high and drying occurs rapidly, the grains may become dry. Deterioration and damage begin to occur. In addition, because the amount of grain loaded into the grain vat of a circulation-type grain drying device is small, the time required for one circulation by the grain circulation device becomes shorter, and the interval during which hot air is supplied becomes shorter. , the drying rate (drying loss rate) of grains increases, and deterioration and damage to grains also occur.
このため、上述の如く、穀粒を循環型の穀粒乾
燥装置で乾燥する場合は、急激な乾燥を避けるた
め、穀粒の含水率の低下に応じて熱風の温度を低
下さすように燃焼装置を制御し、かつ、穀粒循環
装置により循環流動する穀粒の循環路に穀粒を繰
出す穀粒繰出装置の繰出量の制御で、張込量に応
じて穀粒の循環速度を低下させるように制御せし
めている。 For this reason, as mentioned above, when drying grains using a circulation-type grain dryer, in order to avoid rapid drying, the combustion equipment is used to lower the temperature of the hot air in accordance with the decrease in the moisture content of the grains. At the same time, the grain circulation device feeds out the grains into the circulation path where the grains circulate and flow.By controlling the feeding amount of the grain feeding device, the circulation speed of the grains is reduced according to the amount of filling. It is controlled as follows.
ところが、循環型の穀粒乾燥装置をこのように
制御して穀粒の乾燥を行なうと、高水分値の穀粒
の乾燥の際に、過乾燥になつて、胴割れが生じた
り、食味の低下した穀粒に乾燥される場合が生
じ、また、低水分値の穀粒の乾燥の際に、乾燥時
間が長くなつて乾燥効率を悪くする問題が出てく
る。 However, when a circulating grain drying device is controlled in this way to dry grains, when drying grains with a high moisture content, the grains become overdried, resulting in shell cracking and loss of flavor. In some cases, grains with a low moisture content are dried, and when grains with a low moisture value are dried, the drying time becomes longer, resulting in a problem of poor drying efficiency.
本発明は、従来手段に生じているこれらの問題
を解消せしめるためになされたものであつて、穀
粒に変質・損傷を生ぜしめることなく、効率よく
穀粒の乾燥が行なえるようにする新たな手段を提
供することを目的とする。 The present invention has been made in order to solve these problems that have arisen with conventional means, and is a novel method that allows grains to be dried efficiently without causing deterioration or damage to the grains. The purpose is to provide a means to do so.
しかして、本発明は上述の目的のために種々の
研究を重ねて得られた知見に基づいて完成したも
のである。 Therefore, the present invention has been completed based on the knowledge obtained through various studies for the above-mentioned purpose.
即ち、上述の如く循環型の穀粒乾燥装置を制御
して穀粒を乾燥させる際、穀粒が高水分値で穀量
が少ない場合があり、この場合には、高水分値で
あることから高温の熱風が供給されることにな
り、また、穀量が少ないことから循環速度がゆつ
くりしたものとなることで、穀粒が高温の熱風に
曝されながら低速で乾燥部を流下していく傾向と
なること、そして、このようになれば、穀粒がこ
げつくように過乾燥することから胴割れが生ずる
ようになり、また、貯留部では高温に加熱された
状態で動きが鈍くなることで蒸れてしまうように
なり、これにより、胴割れが生じたり品質の劣化
した穀粒に乾し上がるようになることが判つてき
た。また、穀粒が低水分値で穀量が多い場合があ
り、この場合には、低水分値であることで低温の
熱風が供給されることになり、また、穀量が多い
ことで循環速度が速くなるので、低温熱風に曝さ
れながら高速で循環するようになる現象が生ずる
こと、そしてこのようになれば、乾燥が殆んど進
行しないで循環を繰返すことになつて徒らに乾燥
時間を長くするだけとなつて、乾燥効率を低下さ
せるようにしていることが判つてきた。 That is, when drying grains by controlling the circulation-type grain drying device as described above, there are cases where the grains have a high moisture content and a small amount of grain. High-temperature hot air is supplied, and since the grain quantity is small, the circulation speed is slow, so the grains are exposed to high-temperature hot air and flow down the drying section at low speed. If this happens, the kernels will become over-dried and become burnt, resulting in cracking of the shell, and in the storage area, the grain will become sluggish due to being heated to a high temperature. It has been found that this causes the kernels to dry out, resulting in shell cracking and poor quality grains. Also, the grain may have a low moisture value and a high grain volume, in which case the low moisture value will result in the supply of cold hot air, and the high grain volume will result in a faster circulation rate. As the drying speed increases, a phenomenon occurs in which the air is circulated at high speed while being exposed to low-temperature hot air, and if this happens, the circulation will be repeated without much drying progressing, and the drying time will be wasted. It has been found that this method only increases the length of the drying process and reduces the drying efficiency.
そして、このことからさらに研究を重ねたとこ
ろ、水分値の多い穀粒は、浴びせる熱風が高温で
あつても、また、循環速度を早くして熱風を浴び
せるインターバルを短くしても変質・損傷が生じ
ないこと、そして、水分値の減少に伴ない熱風温
度を低下させる制御は、水分値が25％以下になつ
てきてからでよいことが判り、さらに、穀粒繰出
装置の繰出量の制御を、張込量に応じて循環速度
を低下さすよう制御するのに変えて、穀粒の含水
率の変化に応じて行ない、穀粒の水分値が低下す
るに従い循環速度を低下さすように制御したとこ
ろ、水分が多い、従つて、急速に乾燥させても変
質・損傷が生じてこない初期乾燥が、速い循環速
度で循環しながら高温の熱風を浴びて行なわれる
ようになつて、高い乾減率で、しかも、穀粒に変
質・損傷を生ぜしめずに乾燥できるようになり、
また、乾燥の進行により水分値が低くなつてくる
と、その水分値の低下に応じて穀粒がゆつくりし
た速度で循環しながら低温の熱風を浴びて乾燥し
ていくようになつて、穀粒を、食味の低下を来た
す変質を生ぜしめずに、かつ、乾燥効率を大きく
低下さすことなく、循環型の穀粒乾燥装置により
穀粒を乾燥させていけるようになる結果が得られ
たことに基づいて完成したものである。 Based on this, further research revealed that grains with high moisture content do not undergo deterioration or damage even when the hot air is exposed to high temperatures, and even when the circulation speed is increased and the interval between hot air blasts is shortened. It was found that this does not occur, and that the control to lower the hot air temperature as the moisture value decreases can be performed only after the moisture value reaches 25% or less. Instead of controlling the circulation speed to decrease according to the amount of turf, it was controlled according to the change in the moisture content of the grain, and the circulation speed was controlled to decrease as the moisture value of the grain decreased. However, the initial drying process, which contains a lot of water and therefore does not cause deterioration or damage even if dried rapidly, has come to be carried out by being exposed to high-temperature hot air while circulating at a high circulation speed, resulting in a high drying loss rate. Moreover, it is now possible to dry the grains without deteriorating or damaging them.
Additionally, as the moisture content decreases as drying progresses, the grains circulate at a slower rate and are exposed to low-temperature hot air, drying the grains. Results have been obtained that allow grains to be dried using a circulation type grain drying device without causing deterioration of the grains that causes deterioration in taste, and without significantly reducing drying efficiency. It was completed based on.
そして、このことから、本発明においては、前
述の目的を達成するための手段として、乾燥する
穀粒を張込む穀槽と、乾燥風を生成する燃焼装置
と、生成した乾燥風を前記穀槽内に張込んだ穀粒
に送給する送風機と、穀槽の排出口に設けた穀粒
繰出装置と、穀槽の排出口から繰出される穀粒を
再び穀槽の上部に戻すよう循環流動さす穀粒循環
装置とを具備する循環型の穀粒乾燥装置により、
穀粒を循環流動させながらそれに乾燥風を浴びせ
て乾燥させる穀粒の乾燥方法において、循環型の
穀粒乾燥装置の送風機の送風量および燃焼装置の
燃焼量ならびに穀粒繰出装置の繰出量を、穀粒の
循環路の適宜位置に設けた水分検知センサで検出
する穀粒の水分値により、乾燥する穀粒が高水分
値のときには、穀粒の循環速度を速めて高温の乾
燥風を送り、穀粒が低水分値となるにしたがい穀
粒の循環速度と乾燥風の温度とを低下さすよう制
御せしめて穀粒を乾燥させることを特徴とする穀
粒乾燥方法を提起するものである。 From this, in the present invention, as a means for achieving the above-mentioned object, a grain tank into which grains to be dried are loaded, a combustion device which generates drying air, and a combustion device which generates drying air, is provided in the grain tank. A blower that feeds the grains packed inside, a grain feeding device installed at the outlet of the grain tank, and a circulating flow system that returns the grains fed from the outlet of the grain tank back to the top of the grain tank. A circulation-type grain drying device equipped with a grain circulation device allows
In a grain drying method in which grains are dried by blowing drying air on them while circulating and flowing, the amount of air blown by the blower of the circulation type grain drying device, the amount of combustion by the combustion device, and the amount of delivery by the grain feeding device are According to the moisture value of the grains detected by moisture detection sensors installed at appropriate positions in the grain circulation path, when the grains to be dried have a high moisture value, the circulation speed of the grains is increased and high-temperature drying air is sent. The present invention proposes a method for drying grains, which is characterized in that grains are dried by controlling the circulation speed of grains and the temperature of drying air to decrease as the moisture value of grains decreases.
次に実施例を図面に従い詳述する。 Next, embodiments will be described in detail with reference to the drawings.
第１図および第２図において、１は循環型穀粒
乾燥装置Ａの本体を構成している機体で、箱状に
形成してあり、その機体１の内腔には、上半側に
穀槽１０（または乾燥槽）が装設され、その穀槽
１０の内腔には、網体等の通気性の隔壁１１によ
り軸線方向が前後方向（第２図左右方向）となる
筒状の導風路１２が装設してある。そして、その
導風路１２の一端側で、機体１の後面側（第２図
右側）には、該導風路１２内に送給する熱風（乾
燥風）を生成する熱風生成装置１３が設けてあ
る。 In FIGS. 1 and 2, reference numeral 1 denotes a body constituting the main body of the circulating grain drying device A, which is formed into a box shape. A tank 10 (or drying tank) is installed, and in the inner cavity of the grain tank 10, a cylindrical guide whose axial direction is the front-rear direction (left-right direction in FIG. 2) is formed by a breathable partition wall 11 such as a mesh. An air passage 12 is installed. At one end of the air guide path 12, on the rear side of the fuselage 1 (right side in FIG. 2), a hot air generating device 13 is provided that generates hot air (dry air) to be fed into the air guide path 12. There is.
熱風生成装置１３は、送風機１３ａと、オイル
ポンプにより噴出する燃料油を燃焼さすバーナー
装置（燃焼装置）１３ｂとよりなる従来公知のも
ので、それの送風機１３ａ及び燃焼装置１３ｂの
オイルポンプの回転軸（図示していない）は、可
変モータ２（後述する）の回転数に比例して回転
するよう制御装置２０を介して電源回路に接続し
ており、燃焼装置１３ｂのオイルポンプの回転軸
が高速回転することで、燃焼する燃料油の量が多
くなつて高温の乾燥風（熱風）を生成し、以下低
速回転になるにしたがい低い温度の乾燥風を生成
していく構造になつている。 The hot air generating device 13 is a conventionally known device consisting of a blower 13a and a burner device (combustion device) 13b that burns fuel oil jetted out by an oil pump. (not shown) is connected to the power supply circuit via the control device 20 so as to rotate in proportion to the rotation speed of the variable motor 2 (described later), and the rotation shaft of the oil pump of the combustion device 13b is rotated at high speed. As it rotates, the amount of fuel oil it burns increases, producing high-temperature dry air (hot air), and as it rotates at lower speeds, lower-temperature dry air is produced.
３は下部コンベアで、前記穀槽１０の下部に設
けた排出口１４から穀粒繰出装置１５（この実施
例ではドラムシヤツターに構成してある）の作動
により繰り出される穀粒を機体１の外部に搬出す
るためのもので、機体１の底部に装設してある。
また、機体１の頂部には、穀槽１０内へ穀粒を張
込むための上部コンベア４を装設してある。５は
前記上部コンベア４の搬送方向始端部４ａに、穀
粒を送給するために機体１に並設した昇降機で、
塔状に形成した揚穀塔の内腔に、上下にエンドレ
スに回転するバケツトコンベア５０を張架した従
来公知のものであり、下部において前述の下部コ
ンベア３の搬送方向終端部３ａに連通し、上部に
おいて前記上部コンベア４の搬送方向始端部４ａ
と連通している。 Reference numeral 3 denotes a lower conveyor, which conveys grains fed out from a discharge port 14 provided at the bottom of the grain tank 10 by the operation of a grain feeding device 15 (configured as a drum shutter in this embodiment) to the outside of the machine body 1. It is installed at the bottom of the fuselage 1.
Furthermore, an upper conveyor 4 for pushing grain into the grain tank 10 is installed at the top of the machine body 1. Reference numeral 5 denotes an elevator installed in parallel with the machine body 1 to feed grains to the starting end 4a of the upper conveyor 4 in the conveying direction;
This is a conventionally known system in which a bucket conveyor 50 that rotates endlessly up and down is suspended in the inner cavity of a grain lifting tower formed in a tower shape, and the lower part communicates with the terminal end 3a of the lower conveyor 3 in the conveyance direction. , a starting end 4a in the conveying direction of the upper conveyor 4 at the upper part.
It communicates with
しかして、前記上部コンベア４・下部コンベア
３・穀粒繰出装置１５・昇降機５の各回転軸Ｗ…
は、所望の伝導手段により前記可変モータ２と伝
導し、それにより、乾燥行程中においては、前述
穀粒繰出装置１５及び下部コンベア３ならびに上
部コンベア４と共同して、穀槽１０の排出口１４
から穀粒繰出装置１５により繰出される穀粒を、
下部コンベア３→昇降機５→上部コンベア４を経
て再び穀槽１０内に戻すよう循環流動させる穀粒
循環装置ａを構成している。そして、この穀粒循
環装置ａは、前記可変モータ２が高速に回転する
ことで穀粒を循環さす速度が速くなる。このとき
同時に、熱風生成装置１３の燃焼装置１３ｂのオ
イルポンプの回転軸（図示していない）も高速回
転して高温の乾燥風（熱風）を生成するようにな
る。また、可変モータ２の低速回転で、穀粒循環
装置ａの穀粒を循環さす速度が遅くなるととも
に、前記燃焼装置１３ｂのオイルポンプの回転軸
も可変モータ２の回転速度に比例して低回転して
低い温度の乾燥風（熱風）を生成するようにな
る。 Therefore, each rotating shaft W of the upper conveyor 4, lower conveyor 3, grain feeding device 15, elevator 5...
is in communication with said variable motor 2 by the desired transmission means, so that during the drying process, in cooperation with said grain delivery device 15 and said lower conveyor 3 and upper conveyor 4, the outlet 14 of the grain tank 10
The grains fed out by the grain feeding device 15 from
It constitutes a grain circulation device a that circulates the grain through the lower conveyor 3 → elevator 5 → upper conveyor 4 and returns to the grain tank 10 again. In this grain circulation device a, the variable motor 2 rotates at a high speed, thereby increasing the speed at which grains are circulated. At the same time, the rotation shaft (not shown) of the oil pump of the combustion device 13b of the hot air generation device 13 also rotates at high speed to generate high temperature dry air (hot air). Furthermore, due to the low speed rotation of the variable motor 2, the speed at which grains are circulated in the grain circulation device a becomes slow, and the rotating shaft of the oil pump of the combustion device 13b also rotates at a low speed in proportion to the rotation speed of the variable motor 2. This will generate dry air (hot air) at a lower temperature.
６は循環流動中の穀粒の水分値を検知すること
で、前記可変モータ２の回転数を穀粒の水分値に
応じて制御する水分検知センサである。水分検知
センサ６のセンサ部６０は、第４図の如く発信部
６１と受信部６２とを具備する基盤６３の上面を
流動していく穀粒の含水率の変化を、電流のロス
により水分値を検出するもので、前記可変モータ
２とは、第５図の如く電気回路によつて接続して
ある。即ち、穀粒の水分値を検知する水分検知セ
ンサ６は、それの出力信号（電圧）を取出す抵抗
R1を介してトランジスタＴと接続し、トランジ
スタＴの一方の端子をアースとしてある。また、
他方の端子は、水分検知センサ６が高水分値を検
知して大きい出力信号が入力されることで明るく
なり、小さい出力信号が入力されることで暗くな
るランプＰとそのランプＰの光量を受光して抵抗
値が変化するcdsセルＳとよりなる整流部９に接
続してある。整流部９のcdsセルＳは、受光する
光が明るいと信号電流が多く流れ、暗いと少なく
流れるようになり、ランプＰの明るさに比例して
信号電流が流れるよう作用し、cdsセルＳの一方
の端子を、抵抗R2を介して可変モータ２に接続
してある。また、他方の端子には、トリガーダイ
オードTDとコンデンサーＣとが並列に接続し、
一方のコンデンサーＣをアースするとともに、他
方のトリガーダイオードTDをトライアツクTR
を介して前記可変モータ２と接続した電気回路と
なつている。これにより、水分検知センサ６から
の出力信号が大きいと、可変モータ２に入力され
る電流が多くなり、該モータ２は高速回転し、出
力信号が小さいと可変モータ２は低速回転するよ
う作用するもので、水分検知センサ６の出力信号
に比例して可変モータ２の回転数が制御されるよ
うになつている。 A moisture detection sensor 6 controls the rotation speed of the variable motor 2 according to the moisture value of the grains by detecting the moisture value of the grains during circulation. The sensor unit 60 of the moisture detection sensor 6 detects changes in the moisture content of grains flowing on the upper surface of a base 63 that includes a transmitting unit 61 and a receiving unit 62 as shown in FIG. The variable motor 2 is connected to the variable motor 2 through an electric circuit as shown in FIG. That is, the moisture detection sensor 6 that detects the moisture value of grains has a resistor that extracts its output signal (voltage).
It is connected to the transistor T via R1 , and one terminal of the transistor T is grounded. Also,
The other terminal receives the lamp P and the light intensity of the lamp P, which becomes bright when the moisture detection sensor 6 detects a high moisture value and receives a large output signal, and dims when a small output signal is input. It is connected to a rectifying section 9 consisting of a CDS cell S whose resistance value changes. In the CDS cell S of the rectifier 9, when the received light is bright, a large signal current flows, and when it is dark, a small signal current flows, and the signal current flows in proportion to the brightness of the lamp P. One terminal is connected to the variable motor 2 via a resistor R2. In addition, a trigger diode TD and a capacitor C are connected in parallel to the other terminal.
While grounding one capacitor C, try connecting the other trigger diode TD to TR.
It is an electric circuit connected to the variable motor 2 via. As a result, when the output signal from the moisture detection sensor 6 is large, the current input to the variable motor 2 increases, causing the motor 2 to rotate at high speed, and when the output signal is small, the variable motor 2 operates to rotate at a low speed. The rotation speed of the variable motor 2 is controlled in proportion to the output signal of the moisture detection sensor 6.
可変モータ２は、出力信号に比例して回転数が
制御されるようになることは前記して通りである
が、特にこの実施例では、水分検知センサ６に出
力信号の上限及び下限をカツトする抵抗R3，R4
を組入れ、可変モータ２の回転数が設定した以上
の高速回転及び以下の低速回転に回転することが
ないよう前記抵抗R3，R4の抵抗値を設定してあ
つて、穀粒張込時の高水分値、例えば25％以上の
場合には、第６図の如く可変モータ２は設定され
た高速回転で一定に推移していき、以下乾燥が進
んで仕上げ乾燥に近い低水分値、例えば、18％以
下になると、設定された低速回転で一定に推移す
るようにしてある。なお、水分検知センサ６を取
付ける場所は、循環流動中の穀粒の水分値が検知
できる所であれば、適宜の位置でよい。この実施
例にあつては、第３図の如く昇降機５の揚穀塔内
のバケツトコンベア５０の上昇行程側に対面する
昇降機５の機壁５１の外面に、その昇降機５の揚
穀塔内に対し内外に連通する受入口７０と戻し口
７１とを上下に設けた小容積の箱体７を装設し、
その箱体７の底板７２に、センサ部６０が戻し口
７１へ向けて流れる穀粒層を支承するよう取付け
てある。 As mentioned above, the rotation speed of the variable motor 2 is controlled in proportion to the output signal, but in this embodiment in particular, the upper and lower limits of the output signal are cut off by the moisture detection sensor 6. Resistance R 3 , R 4
The resistance values of the resistors R 3 and R 4 are set so that the rotation speed of the variable motor 2 does not exceed the set speed and do not rotate at a low speed below the set value. When the moisture content is high, for example 25% or more, the variable motor 2 rotates at a constant high speed as shown in Figure 6, and as the drying progresses, it reaches a low moisture value close to finish drying, for example. , when it falls below 18%, the rotation speed remains constant at a set low speed. The moisture detection sensor 6 may be installed at any appropriate location as long as it can detect the moisture value of the grains during circulation. In this embodiment, as shown in FIG. A small-volume box body 7 is installed on the top and bottom with a receiving port 70 and a return port 71 communicating with the inside and outside,
A sensor section 60 is attached to the bottom plate 72 of the box 7 so as to support the grain layer flowing toward the return port 71.
なお、８は前記箱体７の内腔に装設した移送装
置で、箱体７の外方にセツトしたモータＭよりそ
れの回転軸８２を前記戻し口７１側へ向けて延長
突出し、その回転軸８２に戻し口７１へ向けて移
送する螺旋翼８１を設けた構成としてあり、その
移送装置８により、戻し口７１へ穀粒を強制的に
移送することで、箱体７内の穀粒を循環作用す
る。 Reference numeral 8 denotes a transfer device installed in the inner cavity of the box body 7, and its rotating shaft 82 is extended and protruded from a motor M set outside the box body 7 toward the return port 71 side, and its rotation is The shaft 82 is provided with a spiral blade 81 for transferring toward the return port 71, and the transfer device 8 forcibly transfers the grains to the return port 71, thereby removing the grains in the box body 7. Acts cyclically.
以上説明したように本発明による穀粒乾燥方法
は、乾燥する穀粒を張込む穀槽と、乾燥風を生成
する燃焼装置と、生成した乾燥風を前記穀槽内に
張込んだ穀粒に送給する送風機と、穀槽の排出口
に設けた穀粒繰出装置と、穀槽の排出口から操出
される穀粒を再び穀槽の上部に戻すよう循環流動
さす穀粒循環装置とを具備する循環型の穀粒乾燥
装置により、穀粒を循環流動させながらそれに乾
燥風を浴びせて乾燥させる穀粒の乾燥方法におい
て、循環型の穀粒乾燥装置の送風機の送風量およ
び燃焼装置の燃焼量ならびに穀粒繰出装置の繰出
量を、穀粒の循環路の適宜位置に設けた水分検知
センサで検出する穀粒の水分値により、乾燥する
穀粒が高水分値のときには、穀粒の循環速度を速
めて高温の乾燥風を送り、穀粒が低水分値となる
にしたがい穀粒の循環速度と乾燥風の温度とを低
下さすよう制御せしめて穀粒を乾燥させるのであ
るから、従来手段に生じていた“穀粒が高温熱風
に曝されながら低速で循環する”傾向および“穀
粒が低温熱風にさらされながら高速で循環する”
傾向がなくなつて、穀粒を張込んで穀燥作業を開
始した当初の水分の多い、従つて変質・損傷が生
ずるおそれのない穀粒を乾燥させていく初期乾燥
時には、穀粒に高温の乾燥風を浴びせながら穀粒
の循環速度を速くした急速な乾燥が行なわれ、乾
燥の進行で水分値が低下してくると、その水分値
の低下に応じて穀粒がゆつくりした循環速度で循
環しながら低温の熱風を浴びて乾燥していくよう
になるので、循環型の穀粒乾燥装置を用いて、穀
粒に食味の低下を来たす変質・損傷を生ぜしめる
ことなく、短い乾燥時間で穀粒を効率よく乾燥し
ていけるようになる。 As explained above, the grain drying method according to the present invention includes a grain vat into which the grains to be dried are placed, a combustion device which generates drying air, and a combustion device which generates drying air, which is applied to the grains placed in the grain vat. Equipped with a blower for supplying air, a grain feeding device installed at the outlet of the grain tank, and a grain circulation device that circulates and flows the grains discharged from the outlet of the grain tank back to the top of the grain tank. In a method of drying grains by spraying drying air on the grains while circulating them using a circulating grain drying device, the amount of air blown by the blower of the circulating grain drying device and the amount of combustion by the combustion device are controlled. In addition, the amount of grain fed out by the grain feeding device is determined by the moisture value of the grain detected by a moisture detection sensor installed at an appropriate position in the grain circulation path, and when the grain to be dried has a high moisture value, the circulation speed of the grain is determined. The process speeds up the drying process and sends high-temperature drying air, and as the moisture content of the kernels decreases, the circulation speed of the kernels and the temperature of the drying air are controlled to decrease to dry the kernels. There was a tendency for grains to circulate at low speeds while being exposed to high-temperature hot air, and a tendency for grains to circulate at high speeds while being exposed to low-temperature hot air.
During the initial drying period, when the grains are dried and the grains have a high moisture content and there is no risk of deterioration or damage, the grains are exposed to high temperatures. Rapid drying is performed by increasing the circulation speed of the grains while blowing drying air, and as the moisture value decreases as the drying progresses, the grains are dried at a slower circulation speed in response to the decrease in moisture value. Since the grains are dried by being exposed to low-temperature hot air while being circulated, using a circulation-type grain drying device, the grains can be dried in a short drying time without causing deterioration or damage that would reduce the taste of the grains. Grain can be dried efficiently.
第１図は一部分を切断した穀粒乾燥装置の正面
図、第２図は同上の側面図、第３図は水分検知セ
ンサの取付場所を示した切断面図、第４図は水分
検知センサのセンサ部の斜視図、第５図は電気回
路図、第６図は可変モータの回転数を示した説明
図である。
図面符号の説明、Ａ……穀粒乾燥装置、Ｃ……
コンデンサー、Ｐ……ランプ、Ｓ……cdsセル、
Ｔ……トランジスタ、TD……トリガーダイオー
ド、TR……トライアツク、Ｗ……回転軸、ａ…
…穀粒循環装置、１……機体、１０……穀槽、１
１……隔壁、１２……導風路、１３……熱風生成
装置、１３ａ……送風機、１３ｂ……燃焼装置、
１４……排出口、１５……穀粒繰出装置、２……
可変モータ、２０……制御装置、３……下部コン
ベア、３ａ……搬送方向終端部、４……上部コン
ベア、４ａ……搬送方向始端部、５……昇降機、
５０……バケツトコンベア、５０……循環路、５
１……機壁、６……水分検知センサ、６０……セ
ンサ部、６１……発信部、６２……受信部、６３
……基盤、７……箱体、７０……受入口、７１…
…戻し口、７２……底板、８……移送装置、８１
……螺旋翼、８２……回転軸、９……整流部、
R1，R2，R3，R4……抵抗。
Figure 1 is a partially cutaway front view of the grain drying device, Figure 2 is a side view of the same as above, Figure 3 is a cross-sectional view showing the installation location of the moisture detection sensor, and Figure 4 is the moisture detection sensor. FIG. 5 is a perspective view of the sensor section, FIG. 5 is an electric circuit diagram, and FIG. 6 is an explanatory diagram showing the rotation speed of the variable motor. Explanation of drawing symbols, A... Grain drying device, C...
Capacitor, P...lamp, S...CDS cell,
T...transistor, TD...trigger diode, TR...triax, W...rotating shaft, a...
... Grain circulation device, 1 ... Aircraft, 10 ... Grain tank, 1
1... Partition wall, 12... Air guiding path, 13... Hot air generator, 13a... Blower, 13b... Combustion device,
14...Discharge port, 15...Grain feeding device, 2...
Variable motor, 20...control device, 3...lower conveyor, 3a...conveying direction terminal end, 4...upper conveyor, 4a...conveying direction starting end, 5...elevator,
50...Bucket conveyor, 50...Circulation path, 5
1... Machine wall, 6... Moisture detection sensor, 60... Sensor section, 61... Transmitting section, 62... Receiving section, 63
...Base, 7...Box, 70...Intake port, 71...
...Return port, 72...Bottom plate, 8...Transfer device, 81
... Helical blade, 82 ... Rotating shaft, 9 ... Rectifier,
R 1 , R 2 , R 3 , R 4 ...Resistance.
Claims (1)
する燃焼装置と、生成した乾燥風を前記穀槽内に
張込んだ穀粒に送給する送風機と、穀槽の排出口
に設けた穀粒繰出装置と、穀槽の排出口から繰出
される穀粒を再び穀槽の上部に戻すよう循環流動
さす穀粒循環装置とを具備する循環型の穀粒乾燥
装置により、穀粒を循環流動させながらそれに乾
燥風を浴びせて乾燥させる穀粒の乾燥方法におい
て、循環型の穀粒乾燥装置の送風機の送風量およ
び燃焼装置の燃焼量ならびに穀粒繰出装置の繰出
量を、穀粒の循環路の適宜位置に設けた水分検知
センサで検出する穀粒の水分値により、乾燥する
穀粒が高水分値のときには、穀粒の循環速度を速
めて高温の乾燥風を送り、穀粒が低水分値となる
にしたがい穀粒の循環速度と乾燥風の温度とを低
下さすよう制御せしめて穀粒を乾燥させることを
特徴とする穀粒乾燥方法。1. A grain tank into which grains to be dried are filled, a combustion device which generates drying air, a blower which sends the generated drying air to the grains filled in the grain tank, and a grain tank provided at the outlet of the grain tank. A circulation-type grain drying device is equipped with a grain feeding device and a grain circulating device that circulates and flows the grains fed out from the outlet of the grain tank back to the top of the grain tank. In a method of drying grains by blowing drying air on them while circulating the grains, the amount of air blown by the blower of the circulation-type grain dryer, the amount of combustion by the combustion device, and the amount of grain delivered by the grain feeding device are controlled to According to the moisture value of the grains detected by moisture detection sensors installed at appropriate positions in the circulation path, if the grains to be dried have a high moisture value, the circulation speed of the grains is increased and high-temperature drying air is sent to dry the grains. A grain drying method characterized in that grains are dried by controlling the circulation speed of grains and the temperature of drying air to decrease as the moisture value becomes lower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP944181A JPS57124680A (en) | 1981-01-24 | 1981-01-24 | Drying of grain particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP944181A JPS57124680A (en) | 1981-01-24 | 1981-01-24 | Drying of grain particles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57124680A JPS57124680A (en) | 1982-08-03 |
| JPH023117B2 true JPH023117B2 (en) | 1990-01-22 |
Family
ID=11720386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP944181A Granted JPS57124680A (en) | 1981-01-24 | 1981-01-24 | Drying of grain particles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57124680A (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5811376A (en) * | 1981-07-13 | 1983-01-22 | 株式会社 サタケ | Controller for drying of drier |
| JPS59125376A (en) * | 1982-12-31 | 1984-07-19 | 井関農機株式会社 | Controller for hot air of burner in cereal grain drier |
| JPS59110891U (en) * | 1983-01-18 | 1984-07-26 | 静岡製機株式会社 | Ventilation control device for circulating grain dryer |
| JPS61147089A (en) * | 1984-12-20 | 1986-07-04 | 株式会社 サタケ | Automatic controller for cereal drier |
| JPS62175576A (en) * | 1986-01-30 | 1987-08-01 | 株式会社山本製作所 | Method of drying cereal grain by using circulation type cereal drier |
| JPS62190379A (en) * | 1986-02-14 | 1987-08-20 | 株式会社山本製作所 | Method of drying cereal grain by using circulation type cereal drier |
| JPH0638029B2 (en) * | 1987-03-02 | 1994-05-18 | 株式会社山本製作所 | Grain dryer operation control device |
| JPH01174882A (en) * | 1987-12-28 | 1989-07-11 | Kaneko Agricult Mach Co Ltd | Drying method for grains |
| JPH0746027B2 (en) * | 1988-06-28 | 1995-05-17 | 株式会社山本製作所 | Grain drying equipment |
| JPH0217381A (en) * | 1988-07-06 | 1990-01-22 | Yamamoto Mfg Co Ltd | Controller for grain drying device |
| JPH0748036B2 (en) * | 1988-12-29 | 1995-05-24 | 株式会社山本製作所 | Grain drying equipment |
| JP4697536B2 (en) * | 2005-07-26 | 2011-06-08 | 株式会社サタケ | Circulation prevention operation method of circulation type grain dryer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55123980A (en) * | 1979-03-16 | 1980-09-24 | Satake Eng Co Ltd | Automatic controller for grain drier |
| JPS5714173A (en) * | 1980-06-28 | 1982-01-25 | Shizuoka Seiki Co Ltd | Controlling of circulation type grain dryer |
-
1981
- 1981-01-24 JP JP944181A patent/JPS57124680A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55123980A (en) * | 1979-03-16 | 1980-09-24 | Satake Eng Co Ltd | Automatic controller for grain drier |
| JPS5714173A (en) * | 1980-06-28 | 1982-01-25 | Shizuoka Seiki Co Ltd | Controlling of circulation type grain dryer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57124680A (en) | 1982-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH023117B2 (en) | ||
| US3097934A (en) | Portable continuous drier | |
| JP3243819B2 (en) | Hot air temperature correction method for grain dryer | |
| KR19990086405A (en) | System Powder Drying Equipment | |
| JPS6022271B2 (en) | Drying control method for circulating grain dryer | |
| JP3133705B2 (en) | Circulating grain dryer | |
| CN216448572U (en) | Grain drying machine with preheating and lifting functions and online moisture detection function | |
| JP3330914B2 (en) | Grain far-infrared dryer | |
| JPH01200185A (en) | Dryness control device for grain drier of circulation type | |
| KR19990069213A (en) | Forced Air Dryer of Circulating Grain Dryer | |
| JPS5853271B2 (en) | Dryer | |
| JP2005321144A (en) | Method and device for drying presoaked seed paddy | |
| JPH0464885A (en) | Grain drying method | |
| JPH0217381A (en) | Controller for grain drying device | |
| JPS62190379A (en) | Method of drying cereal grain by using circulation type cereal drier | |
| JPH04270880A (en) | Operation control method of grain processor | |
| JPS6121462Y2 (en) | ||
| JPS6380187A (en) | Cereal grain drying control system of cereal grain drier | |
| JPH0646136B2 (en) | Grain drying control system of grain dryer | |
| JP2973538B2 (en) | Hot air guide for grain dryer | |
| JPH0264389A (en) | Control system of drying in grain drier | |
| JPH04288473A (en) | Control method of drying in grain drying machine | |
| JPH0827134B2 (en) | Grain drying method | |
| JPS6148657B2 (en) | ||
| JPH0350487A (en) | Control system for grain drier |