發布者: 奧伯特(te)烘干 時間(jian):2021-1-26 11:59:42
水(shui)(shui)稻等(deng)糧食作物(wu)烘(hong)(hong)干(gan)的(de)(de)(de)(de)過(guo)程是一個非常復雜的(de)(de)(de)(de)量變過(guo)程,這(zhe)是由谷(gu)(gu)(gu)物(wu)自身(shen)(shen)(shen)物(wu)理生理特(te)性所(suo)決定(ding)的(de)(de)(de)(de)。專業技(ji)(ji)術人員所(suo)繪出的(de)(de)(de)(de)谷(gu)(gu)(gu)物(wu)水(shui)(shui)分(fen)(fen)蒸發(fa)過(guo)程所(suo)耗費時(shi)(shi)(shi)(shi)間(jian)(jian)(jian)的(de)(de)(de)(de)曲線(xian)幾(ji)乎與(yu)拋物(wu)線(xian)吻合(he)。通俗地(di)說,當(dang)谷(gu)(gu)(gu)物(wu)自身(shen)(shen)(shen)水(shui)(shui)分(fen)(fen)高達20%—30%之(zhi)間(jian)(jian)(jian)時(shi)(shi)(shi)(shi),平均每(mei)小時(shi)(shi)(shi)(shi)可下(xia)(xia)降1—2個百分(fen)(fen)點(dian)甚(shen)至(zhi)更(geng)多的(de)(de)(de)(de)水(shui)(shui)分(fen)(fen);當(dang)谷(gu)(gu)(gu)物(wu)自身(shen)(shen)(shen)水(shui)(shui)分(fen)(fen)下(xia)(xia)降至(zhi)15%—20%之(zhi)間(jian)(jian)(jian)時(shi)(shi)(shi)(shi),平均每(mei)小時(shi)(shi)(shi)(shi)下(xia)(xia)降水(shui)(shui)分(fen)(fen)可能(neng)會(hui)(hui)(hui)在0.3%—1%之(zhi)間(jian)(jian)(jian);當(dang)谷(gu)(gu)(gu)物(wu)自身(shen)(shen)(shen)的(de)(de)(de)(de)水(shui)(shui)分(fen)(fen)在15%以(yi)下(xia)(xia)時(shi)(shi)(shi)(shi),每(mei)個小時(shi)(shi)(shi)(shi)水(shui)(shui)分(fen)(fen)的(de)(de)(de)(de)蒸發(fa)量可能(neng)會(hui)(hui)(hui)更(geng)低(di)。正規的(de)(de)(de)(de)烘(hong)(hong)干(gan)機廠家為(wei)保證烘(hong)(hong)干(gan)谷(gu)(gu)(gu)物(wu)的(de)(de)(de)(de)質量,都是通過(guo)電子信(xin)息技(ji)(ji)術控制熱量來實現烘(hong)(hong)干(gan)機能(neng)夠按(an)照上(shang)述拋物(wu)線(xian)漸次(ci)下(xia)(xia)降運行的(de)(de)(de)(de)。如果(guo)一味追求(qiu)烘(hong)(hong)干(gan)時(shi)(shi)(shi)(shi)間(jian)(jian)(jian)(俗稱(cheng)“降水(shui)(shui)率(lv)”),則其(qi)烘(hong)(hong)出來的(de)(de)(de)(de)糧食品質勢必會(hui)(hui)(hui)大大縮(suo)水(shui)(shui),不僅爆腰(yao)率(lv)、碎米率(lv)高,而且色澤渾濁,品相和營(ying)養價(jia)值也(ye)會(hui)(hui)(hui)受到影響。
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