產(chan)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)干機(ji)是通過(guo)對單筒(tong)烘(hong)干機(ji)的(de)(de)(de)單筒(tong)體改為套疊(die)在一起的(de)(de)(de)三筒(tong),以縮短(duan)烘(hong)干機(ji)體的(de)(de)(de)外形(xing)尺寸。該機(ji)工作時,物料和熱氣流(liu)依次進(jin)入(ru)內至外筒(tong)體,在機(ji)體Z形(xing)往復折流(liu)后,充分利(li)用熱能烘(hong)干物料后再(zai)卸(xie)出。
烘干機筒(tong)體(ti)部分(fen)(fen)由三個同軸水平放置的(de)(de)內、中、外(wai)筒(tong)套疊組(zu)成,這就使筒(tong)體(ti)的(de)(de)截(jie)面得(de)到充分(fen)(fen)的(de)(de)利用。其筒(tong)體(ti)外(wai)形總(zong)長度約為與之相當的(de)(de)單(dan)筒(tong)的(de)(de)30-35%。從(cong)而大(da)幅(fu)度地減少占地面積(ji)和廠房建(jian)筑面積(ji)。
該(gai)機的支承(cheng)裝置,是(shi)在(zai)外筒(tong)上輪帶(dai)與托輪支承(cheng),由電機直接(jie)帶(dai)動托輪。通過托輪與輪帶(dai)摩擦,使筒(tong)體轉動。該(gai)機總體結構緊湊(cou)、合理、簡單,為便于(yu)磨損件的檢修更換,在(zai)中間設計成軸向剖(pou)分式(shi),用螺(luo)栓固定連接(jie)。
工作原理
物(wu)料(liao)(liao)由供料(liao)(liao)裝置(zhi)進入(ru)(ru)回轉滾(gun)(gun)筒(tong)(tong)(tong)的(de)(de)內層(ceng)(ceng)(ceng),實(shi)現順流烘(hong)干(gan)(gan),物(wu)料(liao)(liao)在(zai)(zai)(zai)(zai)內層(ceng)(ceng)(ceng)的(de)(de)抄板下不(bu)斷抄起、散(san)落呈(cheng)螺旋行(xing)(xing)進式(shi)實(shi)現熱(re)交換,物(wu)料(liao)(liao)移(yi)動至內層(ceng)(ceng)(ceng)的(de)(de)另(ling)一端進入(ru)(ru)中(zhong)層(ceng)(ceng)(ceng),進行(xing)(xing)逆流烘(hong)干(gan)(gan),物(wu)料(liao)(liao)在(zai)(zai)(zai)(zai)中(zhong)層(ceng)(ceng)(ceng)不(bu)斷地被反復(fu)揚進,呈(cheng)進兩步退一步的(de)(de)行(xing)(xing)進方式(shi),物(wu)料(liao)(liao)在(zai)(zai)(zai)(zai)中(zhong)層(ceng)(ceng)(ceng)既(ji)充分吸收內層(ceng)(ceng)(ceng)滾(gun)(gun)筒(tong)(tong)(tong)散(san)發的(de)(de)熱(re)量,又吸收中(zhong)層(ceng)(ceng)(ceng)滾(gun)(gun)筒(tong)(tong)(tong)的(de)(de)熱(re)量,同時又延長(chang)了(le)干(gan)(gan)燥(zao)時間,物(wu)料(liao)(liao)在(zai)(zai)(zai)(zai)此(ci)達到干(gan)(gan)燥(zao)狀態。物(wu)料(liao)(liao)行(xing)(xing)至中(zhong)層(ceng)(ceng)(ceng)另(ling)一端而落入(ru)(ru)外層(ceng)(ceng)(ceng),物(wu)料(liao)(liao)在(zai)(zai)(zai)(zai)外層(ceng)(ceng)(ceng)滾(gun)(gun)筒(tong)(tong)(tong)內呈(cheng)矩(ju)形多回路方式(shi)行(xing)(xing)進,達到干(gan)(gan)燥(zao)效果(guo)的(de)(de)物(wu)料(liao)(liao)在(zai)(zai)(zai)(zai)熱(re)風作(zuo)用下快速(su)(su)行(xing)(xing)進排出滾(gun)(gun)筒(tong)(tong)(tong),沒有(you)達到干(gan)(gan)燥(zao)效果(guo)的(de)(de)濕物(wu)料(liao)(liao)因自重(zhong)而不(bu)能快速(su)(su)行(xing)(xing)進,物(wu)料(liao)(liao)在(zai)(zai)(zai)(zai)此(ci)矩(ju)形抄板內進行(xing)(xing)充分干(gan)(gan)燥(zao),由此(ci)完成(cheng)干(gan)(gan)燥(zao)目的(de)(de)。