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(pin)結構(gou)
三筒(tong)(tong)式烘(hong)(hong)干機(ji)(ji)是通過(guo)對單(dan)筒(tong)(tong)烘(hong)(hong)干機(ji)(ji)的(de)單(dan)筒(tong)(tong)體(ti)(ti)改為套疊在(zai)一起的(de)三筒(tong)(tong),以縮短烘(hong)(hong)干機(ji)(ji)體(ti)(ti)的(de)外形尺寸。該(gai)機(ji)(ji)工(gong)作(zuo)時(shi),物料和熱氣流依次進入內至外筒(tong)(tong)體(ti)(ti),在(zai)機(ji)(ji)體(ti)(ti)Z形往復折流后(hou),充分利(li)用(yong)熱能(neng)烘(hong)(hong)干物料后(hou)再卸出。
烘干機筒(tong)(tong)體部分(fen)由三個(ge)同軸水平放置的(de)內、中、外筒(tong)(tong)套疊組成,這(zhe)就使筒(tong)(tong)體的(de)截面得到充分(fen)的(de)利用。其筒(tong)(tong)體外形總長度(du)約(yue)為與之相(xiang)當的(de)單(dan)筒(tong)(tong)的(de)30-35%。從而大幅度(du)地(di)(di)減少占(zhan)地(di)(di)面積和廠房建筑面積。
該(gai)機(ji)的(de)支承裝置(zhi),是在(zai)(zai)外筒上輪帶(dai)(dai)與托(tuo)輪支承,由電機(ji)直接(jie)帶(dai)(dai)動托(tuo)輪。通過托(tuo)輪與輪帶(dai)(dai)摩(mo)擦,使筒體(ti)轉動。該(gai)機(ji)總體(ti)結構緊(jin)湊、合理、簡單,為便于磨損件的(de)檢修更(geng)換,在(zai)(zai)中(zhong)間設計成軸向剖(pou)分式,用螺栓固定連接(jie)。
工作原理(li)
物(wu)料(liao)(liao)由(you)供(gong)料(liao)(liao)裝置進(jin)(jin)入(ru)回轉滾筒(tong)的(de)內(nei)層(ceng)(ceng)(ceng),實(shi)(shi)現順流(liu)烘干(gan)(gan),物(wu)料(liao)(liao)在(zai)內(nei)層(ceng)(ceng)(ceng)的(de)抄(chao)板下(xia)不斷抄(chao)起(qi)、散落呈螺旋(xuan)行(xing)進(jin)(jin)式實(shi)(shi)現熱交換,物(wu)料(liao)(liao)移動至內(nei)層(ceng)(ceng)(ceng)的(de)另(ling)一(yi)(yi)(yi)端(duan)進(jin)(jin)入(ru)中(zhong)層(ceng)(ceng)(ceng),進(jin)(jin)行(xing)逆(ni)流(liu)烘干(gan)(gan),物(wu)料(liao)(liao)在(zai)中(zhong)層(ceng)(ceng)(ceng)不斷地被(bei)反復(fu)揚進(jin)(jin),呈進(jin)(jin)兩步退一(yi)(yi)(yi)步的(de)行(xing)進(jin)(jin)方式,物(wu)料(liao)(liao)在(zai)中(zhong)層(ceng)(ceng)(ceng)既充(chong)分吸收內(nei)層(ceng)(ceng)(ceng)滾筒(tong)散發的(de)熱量(liang),又(you)吸收中(zhong)層(ceng)(ceng)(ceng)滾筒(tong)的(de)熱量(liang),同時又(you)延(yan)長了(le)干(gan)(gan)燥(zao)(zao)時間,物(wu)料(liao)(liao)在(zai)此達(da)到(dao)干(gan)(gan)燥(zao)(zao)狀態。物(wu)料(liao)(liao)行(xing)至中(zhong)層(ceng)(ceng)(ceng)另(ling)一(yi)(yi)(yi)端(duan)而落入(ru)外層(ceng)(ceng)(ceng),物(wu)料(liao)(liao)在(zai)外層(ceng)(ceng)(ceng)滾筒(tong)內(nei)呈矩形多(duo)回路方式行(xing)進(jin)(jin),達(da)到(dao)干(gan)(gan)燥(zao)(zao)效(xiao)果(guo)的(de)物(wu)料(liao)(liao)在(zai)熱風作用(yong)下(xia)快速行(xing)進(jin)(jin)排出(chu)滾筒(tong),沒有達(da)到(dao)干(gan)(gan)燥(zao)(zao)效(xiao)果(guo)的(de)濕物(wu)料(liao)(liao)因(yin)自重(zhong)而不能快速行(xing)進(jin)(jin),物(wu)料(liao)(liao)在(zai)此矩形抄(chao)板內(nei)進(jin)(jin)行(xing)充(chong)分干(gan)(gan)燥(zao)(zao),由(you)此完(wan)成干(gan)(gan)燥(zao)(zao)目的(de)。