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種子循環(huán)干燥系統(tǒng)設(shè)計與試驗
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國家自然科學(xué)基金資助項目(31371871）、高等學(xué)校博士學(xué)科點專項科研基金資助項目（20114404110021）和廣東省產(chǎn)學(xué)研資助項目（2012B091000135）


Development of Seed Circulation Drying System
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    摘要:

    基于種子的物性特征和干燥系統(tǒng)客觀能勢的利用，設(shè)計了一種小型種子循環(huán)干燥機及引風(fēng)干燥工藝系統(tǒng)，給出了消除干燥機熱慣性的準(zhǔn)則數(shù)煙氣熱風(fēng)比，設(shè)計了比例閥，依照種子的含水率和干燥歷程開發(fā)了自適應(yīng)控制系統(tǒng)；為保證干燥機清種的可靠性，設(shè)計了可在360°范圍內(nèi)旋轉(zhuǎn)的排糧翻板，不僅清種徹底，還能實現(xiàn)無級排糧。試驗結(jié)果表明，在同樣的干燥速率下，可使種子的干燥溫度較傳統(tǒng)的鼓風(fēng)干燥低9℃，干燥效率提高20%，排糧結(jié)束后，干燥機內(nèi)沒有殘留種子。

    Abstract:

    A small scaled seed circulating dryer and an induced-draft drying process system were developed by analyzing physical properties of seeds and objective potential energy of drying systems. A kind of proportional valve was designed to eliminate thermal inertia of dryer thermal (the ratio of exhaust gas to hot air) and an adaptive control system was developed base on the relationship between seed moisture and drying process by using the proportional valve. To ensure the reliability of the drying machine cleaning, a delivery flap, which could rotate 360°, was designed to clean up the dryer and realize step-less delivery. The result showed that the drying temperature was lower than the traditional drum wind dryers by 9℃, and the drying efficiency was increased at least by 20%, and no seeds were leave over after delivering.

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李長友,麥智煒,方壯東,李健民,張燁.種子循環(huán)干燥系統(tǒng)設(shè)計與試驗[J].農(nóng)業(yè)機械學(xué)報,2014,45(6):242-248. Li Changyou, Mai Zhiwei, Fang Zhuangdong, Li Jianmin, Zhang Ye. Development of Seed Circulation Drying System[J]. Transactions of the Chinese Society for Agricultural Machinery,2014,45(6):242-248.

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  • 收稿日期:2013-12-29
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  • 在線發(fā)布日期: 2014-06-10
  • 出版日期: 2014-06-10