產(chan)品(pin)概(gai)況
回轉式(shi)三筒烘(hong)(hong)(hong)干機(ji)改(gai)進原(yuan)單(dan)筒烘(hong)(hong)(hong)干機(ji)內部結構,增加(jia)入機(ji)前濕料的(de)(de)預烘(hong)(hong)(hong)干和延長濕料在機(ji)內烘(hong)(hong)(hong)干時間,再加(jia)上密封、保溫以及合(he)理(li)的(de)(de)配套(tao)措施,使烘(hong)(hong)(hong)干機(ji)生產能力與(yu)原(yuan)單(dan)筒式(shi)烘(hong)(hong)(hong)干機(ji)相比,提高48-80%,單(dan)位容積蒸發強度(du)可達(da)120-180kg/m3,標(biao)準煤(mei)耗僅為6-8kg/t。其技術先(xian)進、運行參數合(he)理(li),操(cao)作簡單(dan)可行,廣泛應(ying)用(yong)于各個行業的(de)(de)礦渣(zha)、粘土、煤(mei)。
產(chan)品(pin)結構
三筒(tong)烘干(gan)機(ji)是(shi)通過對(dui)單(dan)筒(tong)烘干(gan)機(ji)的(de)單(dan)筒(tong)體(ti)改為套疊(die)在一起的(de)三筒(tong),以縮短烘干(gan)機(ji)體(ti)的(de)外(wai)形尺寸。該機(ji)工作(zuo)時,物料(liao)和熱氣流依次進入內至外(wai)筒(tong)體(ti),在機(ji)體(ti)Z形往復折流后,充分利(li)用熱能(neng)烘干(gan)物料(liao)后再卸出。
烘干機筒(tong)(tong)體(ti)部分(fen)由三個同軸水平(ping)放置的內、中、外筒(tong)(tong)套疊組成,這就使筒(tong)(tong)體(ti)的截面(mian)得到充(chong)分(fen)的利用。其筒(tong)(tong)體(ti)外形(xing)總(zong)長度約(yue)為與之相當(dang)的單筒(tong)(tong)的30-35%。從而大幅度地減少占地面(mian)積和廠房建(jian)筑面(mian)積。
該機(ji)的(de)支承(cheng)裝置,是在外筒(tong)上輪(lun)(lun)帶(dai)(dai)(dai)與托(tuo)(tuo)輪(lun)(lun)支承(cheng),由(you)電機(ji)直接帶(dai)(dai)(dai)動托(tuo)(tuo)輪(lun)(lun)。通過托(tuo)(tuo)輪(lun)(lun)與輪(lun)(lun)帶(dai)(dai)(dai)摩擦,使筒(tong)體轉動。該機(ji)總體結(jie)構緊湊、合理(li)、簡單(dan),為便(bian)于磨損件(jian)的(de)檢修(xiu)更換,在中間設計成軸向剖分式,用螺栓固定(ding)連接。
工作原(yuan)理
物(wu)料(liao)由(you)供料(liao)裝置進(jin)(jin)入(ru)回轉滾筒的(de)內(nei)層(ceng)(ceng)(ceng),實(shi)現順(shun)流烘(hong)干(gan),物(wu)料(liao)在(zai)(zai)內(nei)層(ceng)(ceng)(ceng)的(de)抄板下不(bu)斷抄起、散(san)(san)落(luo)呈(cheng)螺旋行(xing)進(jin)(jin)式實(shi)現熱(re)交換,物(wu)料(liao)移動至內(nei)層(ceng)(ceng)(ceng)的(de)另(ling)一端(duan)(duan)進(jin)(jin)入(ru)中層(ceng)(ceng)(ceng),進(jin)(jin)行(xing)逆(ni)流烘(hong)干(gan),物(wu)料(liao)在(zai)(zai)中層(ceng)(ceng)(ceng)不(bu)斷地(di)被反復揚進(jin)(jin),呈(cheng)進(jin)(jin)兩步退一步的(de)行(xing)進(jin)(jin)方式,物(wu)料(liao)在(zai)(zai)中層(ceng)(ceng)(ceng)既(ji)充分吸收內(nei)層(ceng)(ceng)(ceng)滾筒散(san)(san)發的(de)熱(re)量(liang),又吸收中層(ceng)(ceng)(ceng)滾筒的(de)熱(re)量(liang),同時(shi)又延(yan)長了干(gan)燥時(shi)間,物(wu)料(liao)在(zai)(zai)此(ci)達到(dao)干(gan)燥狀態。物(wu)料(liao)行(xing)至中層(ceng)(ceng)(ceng)另(ling)一端(duan)(duan)而落(luo)入(ru)外層(ceng)(ceng)(ceng),物(wu)料(liao)在(zai)(zai)外層(ceng)(ceng)(ceng)滾筒內(nei)呈(cheng)矩形多回路方式行(xing)進(jin)(jin),達到(dao)干(gan)燥效果的(de)物(wu)料(liao)在(zai)(zai)熱(re)風(feng)作用下快速行(xing)進(jin)(jin)排出(chu)滾筒,沒(mei)有達到(dao)干(gan)燥效果的(de)濕物(wu)料(liao)因(yin)自重而不(bu)能快速行(xing)進(jin)(jin),物(wu)料(liao)在(zai)(zai)此(ci)矩形抄板內(nei)進(jin)(jin)行(xing)充分干(gan)燥,由(you)此(ci)完成干(gan)燥目(mu)的(de)。