發布者: 奧伯特(te)烘干 時間:2021-2-23 13:49:19
水(shui)(shui)(shui)稻等糧食作(zuo)物(wu)(wu)(wu)烘(hong)(hong)干(gan)的(de)(de)過(guo)(guo)程是(shi)一個非常(chang)復雜的(de)(de)量(liang)變過(guo)(guo)程,這是(shi)由谷(gu)(gu)(gu)物(wu)(wu)(wu)自身物(wu)(wu)(wu)理生(sheng)理特性(xing)所決定(ding)的(de)(de)。專業技(ji)術人員(yuan)所繪出的(de)(de)谷(gu)(gu)(gu)物(wu)(wu)(wu)水(shui)(shui)(shui)分(fen)(fen)(fen)蒸發過(guo)(guo)程所耗(hao)費(fei)時(shi)間(jian)的(de)(de)曲線幾乎與拋(pao)物(wu)(wu)(wu)線吻合。通俗地(di)說,當(dang)(dang)谷(gu)(gu)(gu)物(wu)(wu)(wu)自身水(shui)(shui)(shui)分(fen)(fen)(fen)高達20%—30%之間(jian)時(shi),平(ping)(ping)均每(mei)小(xiao)(xiao)時(shi)可下(xia)降(jiang)1—2個百分(fen)(fen)(fen)點甚(shen)至更(geng)多(duo)的(de)(de)水(shui)(shui)(shui)分(fen)(fen)(fen);當(dang)(dang)谷(gu)(gu)(gu)物(wu)(wu)(wu)自身水(shui)(shui)(shui)分(fen)(fen)(fen)下(xia)降(jiang)至15%—20%之間(jian)時(shi),平(ping)(ping)均每(mei)小(xiao)(xiao)時(shi)下(xia)降(jiang)水(shui)(shui)(shui)分(fen)(fen)(fen)可能會在0.3%—1%之間(jian);當(dang)(dang)谷(gu)(gu)(gu)物(wu)(wu)(wu)自身的(de)(de)水(shui)(shui)(shui)分(fen)(fen)(fen)在15%以下(xia)時(shi),每(mei)個小(xiao)(xiao)時(shi)水(shui)(shui)(shui)分(fen)(fen)(fen)的(de)(de)蒸發量(liang)可能會更(geng)低。正規的(de)(de)烘(hong)(hong)干(gan)機(ji)廠(chang)家為(wei)保證烘(hong)(hong)干(gan)谷(gu)(gu)(gu)物(wu)(wu)(wu)的(de)(de)質(zhi)量(liang),都是(shi)通過(guo)(guo)電子信(xin)息技(ji)術控制(zhi)熱量(liang)來實(shi)現烘(hong)(hong)干(gan)機(ji)能夠按照上述拋(pao)物(wu)(wu)(wu)線漸次下(xia)降(jiang)運(yun)行的(de)(de)。如果一味追求烘(hong)(hong)干(gan)時(shi)間(jian)(俗稱“降(jiang)水(shui)(shui)(shui)率”),則其烘(hong)(hong)出來的(de)(de)糧食品質(zhi)勢必(bi)會大大縮水(shui)(shui)(shui),不(bu)僅爆腰率、碎(sui)米率高,而且色澤(ze)渾濁,品相和營養(yang)價值也(ye)會受到影響。
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