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(hong)(hong)干(gan)機(ji)是通過對(dui)單(dan)筒(tong)烘(hong)(hong)干(gan)機(ji)的單(dan)筒(tong)體改為套疊(die)在一起的三筒(tong)，以縮短(duan)烘(hong)(hong)干(gan)機(ji)體的外形尺寸。該機(ji)工作時，物(wu)料(liao)和熱(re)氣流依次進入(ru)內至外筒(tong)體，在機(ji)體Z形往復折流后，充分利用(yong)熱(re)能烘(hong)(hong)干(gan)物(wu)料(liao)后再卸出。
烘(hong)干(gan)機筒(tong)(tong)體(ti)部(bu)分由三個(ge)同(tong)軸水平放置的(de)內(nei)、中(zhong)、外(wai)筒(tong)(tong)套疊組成，這(zhe)就(jiu)使筒(tong)(tong)體(ti)的(de)截面得到充分的(de)利(li)用。其筒(tong)(tong)體(ti)外(wai)形總(zong)長度約為與之相(xiang)當的(de)單(dan)筒(tong)(tong)的(de)30-35%。從而大幅(fu)度地減少占(zhan)地面積和廠(chang)房建筑面積。
該機(ji)的(de)支承裝置，是在外(wai)筒上輪(lun)帶(dai)(dai)與托(tuo)輪(lun)支承，由電機(ji)直接帶(dai)(dai)動托(tuo)輪(lun)。通過(guo)托(tuo)輪(lun)與輪(lun)帶(dai)(dai)摩擦，使筒體轉動。該機(ji)總體結構(gou)緊湊(cou)、合(he)理、簡單，為便于磨損件的(de)檢修更換，在中間設計(ji)成軸向剖分式，用螺栓固定連接。
工(gong)作原理
物(wu)料(liao)(liao)由(you)供料(liao)(liao)裝置進(jin)入(ru)回轉滾筒(tong)(tong)(tong)的(de)(de)內(nei)層(ceng)(ceng),實現順流烘干(gan)(gan),物(wu)料(liao)(liao)在(zai)(zai)內(nei)層(ceng)(ceng)的(de)(de)抄(chao)板下不(bu)(bu)斷抄(chao)起、散落呈螺(luo)旋行(xing)(xing)(xing)(xing)進(jin)式(shi)實現熱(re)交換，物(wu)料(liao)(liao)移動至內(nei)層(ceng)(ceng)的(de)(de)另一(yi)端進(jin)入(ru)中(zhong)(zhong)層(ceng)(ceng)，進(jin)行(xing)(xing)(xing)(xing)逆流烘干(gan)(gan)，物(wu)料(liao)(liao)在(zai)(zai)中(zhong)(zhong)層(ceng)(ceng)不(bu)(bu)斷地被反復揚進(jin)，呈進(jin)兩步退一(yi)步的(de)(de)行(xing)(xing)(xing)(xing)進(jin)方式(shi)，物(wu)料(liao)(liao)在(zai)(zai)中(zhong)(zhong)層(ceng)(ceng)既(ji)充(chong)分吸收(shou)內(nei)層(ceng)(ceng)滾筒(tong)(tong)(tong)散發的(de)(de)熱(re)量，又吸收(shou)中(zhong)(zhong)層(ceng)(ceng)滾筒(tong)(tong)(tong)的(de)(de)熱(re)量，同時又延長了干(gan)(gan)燥(zao)時間，物(wu)料(liao)(liao)在(zai)(zai)此(ci)達到(dao)干(gan)(gan)燥(zao)狀態。物(wu)料(liao)(liao)行(xing)(xing)(xing)(xing)至中(zhong)(zhong)層(ceng)(ceng)另一(yi)端而(er)落入(ru)外(wai)層(ceng)(ceng)，物(wu)料(liao)(liao)在(zai)(zai)外(wai)層(ceng)(ceng)滾筒(tong)(tong)(tong)內(nei)呈矩形多回路方式(shi)行(xing)(xing)(xing)(xing)進(jin)，達到(dao)干(gan)(gan)燥(zao)效果的(de)(de)物(wu)料(liao)(liao)在(zai)(zai)熱(re)風(feng)作用下快速(su)行(xing)(xing)(xing)(xing)進(jin)排出滾筒(tong)(tong)(tong)，沒有達到(dao)干(gan)(gan)燥(zao)效果的(de)(de)濕(shi)物(wu)料(liao)(liao)因自(zi)重而(er)不(bu)(bu)能快速(su)行(xing)(xing)(xing)(xing)進(jin)，物(wu)料(liao)(liao)在(zai)(zai)此(ci)矩形抄(chao)板內(nei)進(jin)行(xing)(xing)(xing)(xing)充(chong)分干(gan)(gan)燥(zao)，由(you)此(ci)完成干(gan)(gan)燥(zao)目的(de)(de)。
