膨(peng)(peng)(peng)(peng)润(run)(run)(run)土(tu)烘干系(xi)统主要由热风(feng)(feng)炉、上料(liao)输(shu)送机(ji)、回(hui)转滚(gun)筒(tong)、出(chu)料(liao)输(shu)送机(ji)、引风(feng)(feng)机(ji)、旋风(feng)(feng)除尘(chen)器(qi)、袋式除尘(chen)器(qi)（或(huo)(huo)者湿式除尘(chen)器(qi)）和(he)操作(zuo)控(kong)制系(xi)统构成(cheng)(cheng)。设备采用顺流干燥(zao)工(gong)(gong)(gong)艺，其工(gong)(gong)(gong)作(zuo)原(yuan)理如下：膨(peng)(peng)(peng)(peng)润(run)(run)(run)土(tu)进(jin)入干燥(zao)滚(gun)筒(tong)后(hou)分以(yi)下几个工(gong)(gong)(gong)作(zuo)区(qu)(qu)：一是(shi)导(dao)(dao)料(liao)区(qu)(qu)，膨(peng)(peng)(peng)(peng)润(run)(run)(run)土(tu)进(jin)入此(ci)区(qu)(qu)与高(gao)温热风(feng)(feng)接(jie)触(chu)迅(xun)速蒸发水(shui)(shui)分，膨(peng)(peng)(peng)(peng)润(run)(run)(run)土(tu)在(zai)大导(dao)(dao)角的(de)(de)导(dao)(dao)料(liao)板抄(chao)动(dong)下，被导(dao)(dao)入下一个工(gong)(gong)(gong)作(zuo)区(qu)(qu)；二是(shi)抄(chao)板区(qu)(qu)，膨(peng)(peng)(peng)(peng)润(run)(run)(run)土(tu)在(zai)此(ci)区(qu)(qu)被抄(chao)板抄(chao)起形成(cheng)(cheng)料(liao)幕状态，此(ci)时膨(peng)(peng)(peng)(peng)润(run)(run)(run)土(tu)与热风(feng)(feng)充分接(jie)触(chu)，膨(peng)(peng)(peng)(peng)润(run)(run)(run)土(tu)中的(de)(de)水(shui)(shui)分迅(xun)速蒸发剥离成(cheng)(cheng)为水(shui)(shui)蒸气(qi)，水(shui)(shui)蒸气(qi)随即被引风(feng)(feng)机(ji)抽走，从而达到膨(peng)(peng)(peng)(peng)润(run)(run)(run)土(tu)干燥(zao)的(de)(de)目的(de)(de)；膨(peng)(peng)(peng)(peng)润(run)(run)(run)土(tu)在(zai)此(ci)区(qu)(qu)被干燥(zao)成(cheng)(cheng)水(shui)(shui)分小于5%（或(huo)(huo)者更低）以(yi)下的(de)(de)松散状态，经(jing)过(guo)热交换后(hou)膨(peng)(peng)(peng)(peng)润(run)(run)(run)土(tu)达到所要求的(de)(de)水(shui)(shui)分状态，进(jin)入后(hou)面的(de)(de)出(chu)料(liao)区(qu)(qu)；三是(shi)出(chu)料(liao)区(qu)(qu)，滚(gun)筒(tong)在(zai)此(ci)区(qu)(qu)不(bu)设抄(chao)板，膨(peng)(peng)(peng)(peng)润(run)(run)(run)土(tu)在(zai)此(ci)区(qu)(qu)滚(gun)动(dong)滑行至排(pai)料(liao)口，完成(cheng)(cheng)整个烘干过(guo)程。