產品概況
回轉式三筒烘干機改進原單筒烘干機內部結構,增加入機前濕料的預烘干和延長濕料在機內烘干時間,再加上密封、保溫以及合理的配套措施,使烘干機生產能力與原單筒式烘干機相比,提高48-80%,單位容積蒸發強度可達120-180kg/m3,標準煤耗僅為6-8kg/t。其技術先進、運行參數合理,操作簡單可行,廣泛應用于各個行業的礦渣、粘土、煤。
產品結構
三筒(tong)式烘干(gan)機(ji)是通過對單筒(tong)烘干(gan)機(ji)的單筒(tong)體改(gai)為(wei)套(tao)疊在一起的三筒(tong),以(yi)縮短烘干(gan)機(ji)體的外形(xing)尺寸。該機(ji)工(gong)作時,物料和熱(re)氣流依(yi)次進入內至外筒(tong)體,在機(ji)體Z形(xing)往復折(zhe)流后(hou),充分利用熱(re)能烘干(gan)物料后(hou)再卸(xie)出(chu)。
烘干機(ji)筒(tong)(tong)(tong)體(ti)部分由(you)三個(ge)同軸(zhou)水平放置(zhi)的(de)內、中(zhong)、外(wai)筒(tong)(tong)(tong)套疊組(zu)成,這就使筒(tong)(tong)(tong)體(ti)的(de)截面得到(dao)充(chong)分的(de)利用。其筒(tong)(tong)(tong)體(ti)外(wai)形總長度約(yue)為與之相當的(de)單(dan)筒(tong)(tong)(tong)的(de)30-35%。從而大幅度地(di)減少占地(di)面積和廠(chang)房(fang)建筑面積。
該機的支承(cheng)裝置,是在(zai)外筒(tong)上輪(lun)帶(dai)與托(tuo)輪(lun)支承(cheng),由電機直(zhi)接(jie)帶(dai)動托(tuo)輪(lun)。通(tong)過托(tuo)輪(lun)與輪(lun)帶(dai)摩(mo)擦,使(shi)筒(tong)體轉動。該機總體結構緊湊、合理、簡單(dan),為便于(yu)磨損件(jian)的檢修更換,在(zai)中間設計成軸向剖(pou)分式,用螺栓固定連接(jie)。
工作(zuo)原理
物(wu)料(liao)(liao)(liao)(liao)由供料(liao)(liao)(liao)(liao)裝(zhuang)置進(jin)(jin)入(ru)回轉滾筒的(de)內(nei)(nei)層(ceng),實現順流烘(hong)干(gan)(gan),物(wu)料(liao)(liao)(liao)(liao)在(zai)(zai)內(nei)(nei)層(ceng)的(de)抄板(ban)(ban)下不(bu)(bu)斷(duan)抄起、散(san)落呈(cheng)螺旋行(xing)(xing)(xing)進(jin)(jin)式(shi)實現熱交換,物(wu)料(liao)(liao)(liao)(liao)移動至內(nei)(nei)層(ceng)的(de)另一(yi)端(duan)進(jin)(jin)入(ru)中層(ceng),進(jin)(jin)行(xing)(xing)(xing)逆流烘(hong)干(gan)(gan),物(wu)料(liao)(liao)(liao)(liao)在(zai)(zai)中層(ceng)不(bu)(bu)斷(duan)地被反復揚進(jin)(jin),呈(cheng)進(jin)(jin)兩步退一(yi)步的(de)行(xing)(xing)(xing)進(jin)(jin)方(fang)式(shi),物(wu)料(liao)(liao)(liao)(liao)在(zai)(zai)中層(ceng)既(ji)充(chong)分(fen)吸收(shou)內(nei)(nei)層(ceng)滾筒散(san)發的(de)熱量,又(you)吸收(shou)中層(ceng)滾筒的(de)熱量,同時又(you)延長了干(gan)(gan)燥(zao)時間,物(wu)料(liao)(liao)(liao)(liao)在(zai)(zai)此達到(dao)(dao)干(gan)(gan)燥(zao)狀態。物(wu)料(liao)(liao)(liao)(liao)行(xing)(xing)(xing)至中層(ceng)另一(yi)端(duan)而(er)落入(ru)外層(ceng),物(wu)料(liao)(liao)(liao)(liao)在(zai)(zai)外層(ceng)滾筒內(nei)(nei)呈(cheng)矩形多(duo)回路方(fang)式(shi)行(xing)(xing)(xing)進(jin)(jin),達到(dao)(dao)干(gan)(gan)燥(zao)效(xiao)果的(de)物(wu)料(liao)(liao)(liao)(liao)在(zai)(zai)熱風作(zuo)用下快速行(xing)(xing)(xing)進(jin)(jin)排出滾筒,沒有達到(dao)(dao)干(gan)(gan)燥(zao)效(xiao)果的(de)濕物(wu)料(liao)(liao)(liao)(liao)因自重(zhong)而(er)不(bu)(bu)能快速行(xing)(xing)(xing)進(jin)(jin),物(wu)料(liao)(liao)(liao)(liao)在(zai)(zai)此矩形抄板(ban)(ban)內(nei)(nei)進(jin)(jin)行(xing)(xing)(xing)充(chong)分(fen)干(gan)(gan)燥(zao),由此完成干(gan)(gan)燥(zao)目的(de)。