產(chan)品概況(kuang)
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
三筒式烘(hong)干機(ji)(ji)是通過對(dui)單筒烘(hong)干機(ji)(ji)的單筒體(ti)(ti)改為套疊在(zai)一起的三筒，以(yi)縮短烘(hong)干機(ji)(ji)體(ti)(ti)的外形(xing)尺寸。該(gai)機(ji)(ji)工作時，物料和熱(re)氣流(liu)依次(ci)進入(ru)內至(zhi)外筒體(ti)(ti)，在(zai)機(ji)(ji)體(ti)(ti)Z形(xing)往復折(zhe)流(liu)后，充分(fen)利(li)用(yong)熱(re)能(neng)烘(hong)干物料后再卸出。
烘干(gan)機筒(tong)(tong)體部分由三個同(tong)軸水平放置的(de)內、中、外筒(tong)(tong)套(tao)疊組成，這就(jiu)使筒(tong)(tong)體的(de)截面(mian)(mian)得到充分的(de)利用。其筒(tong)(tong)體外形(xing)總長度約為與(yu)之相當(dang)的(de)單筒(tong)(tong)的(de)30-35%。從而大幅度地減少占地面(mian)(mian)積(ji)和廠(chang)房建(jian)筑面(mian)(mian)積(ji)。
該機的(de)支承(cheng)(cheng)裝(zhuang)置，是(shi)在(zai)外筒上(shang)輪(lun)(lun)帶與(yu)托輪(lun)(lun)支承(cheng)(cheng)，由電機直接帶動托輪(lun)(lun)。通(tong)過托輪(lun)(lun)與(yu)輪(lun)(lun)帶摩擦，使筒體(ti)轉動。該機總體(ti)結構緊(jin)湊、合理、簡單(dan)，為便(bian)于磨損件(jian)的(de)檢修更換，在(zai)中間設(she)計成軸向剖(pou)分式，用螺栓固定連接。
工作原理
物(wu)(wu)料(liao)(liao)由供(gong)料(liao)(liao)裝置進(jin)(jin)(jin)入回轉滾(gun)筒(tong)(tong)的(de)(de)(de)內(nei)(nei)(nei)層(ceng)(ceng),實(shi)現順流烘(hong)干(gan),物(wu)(wu)料(liao)(liao)在(zai)(zai)內(nei)(nei)(nei)層(ceng)(ceng)的(de)(de)(de)抄板(ban)下不斷(duan)抄起、散(san)(san)落(luo)呈(cheng)螺旋行(xing)(xing)(xing)進(jin)(jin)(jin)式實(shi)現熱(re)交換，物(wu)(wu)料(liao)(liao)移動至(zhi)(zhi)內(nei)(nei)(nei)層(ceng)(ceng)的(de)(de)(de)另一端進(jin)(jin)(jin)入中(zhong)層(ceng)(ceng)，進(jin)(jin)(jin)行(xing)(xing)(xing)逆流烘(hong)干(gan)，物(wu)(wu)料(liao)(liao)在(zai)(zai)中(zhong)層(ceng)(ceng)不斷(duan)地被(bei)反復揚進(jin)(jin)(jin)，呈(cheng)進(jin)(jin)(jin)兩步(bu)退一步(bu)的(de)(de)(de)行(xing)(xing)(xing)進(jin)(jin)(jin)方式，物(wu)(wu)料(liao)(liao)在(zai)(zai)中(zhong)層(ceng)(ceng)既充(chong)分吸收(shou)內(nei)(nei)(nei)層(ceng)(ceng)滾(gun)筒(tong)(tong)散(san)(san)發(fa)的(de)(de)(de)熱(re)量(liang)，又吸收(shou)中(zhong)層(ceng)(ceng)滾(gun)筒(tong)(tong)的(de)(de)(de)熱(re)量(liang)，同(tong)時(shi)又延長了干(gan)燥(zao)時(shi)間，物(wu)(wu)料(liao)(liao)在(zai)(zai)此(ci)(ci)達(da)(da)到(dao)干(gan)燥(zao)狀態。物(wu)(wu)料(liao)(liao)行(xing)(xing)(xing)至(zhi)(zhi)中(zhong)層(ceng)(ceng)另一端而落(luo)入外層(ceng)(ceng)，物(wu)(wu)料(liao)(liao)在(zai)(zai)外層(ceng)(ceng)滾(gun)筒(tong)(tong)內(nei)(nei)(nei)呈(cheng)矩形(xing)多回路方式行(xing)(xing)(xing)進(jin)(jin)(jin)，達(da)(da)到(dao)干(gan)燥(zao)效(xiao)果的(de)(de)(de)物(wu)(wu)料(liao)(liao)在(zai)(zai)熱(re)風作用下快速行(xing)(xing)(xing)進(jin)(jin)(jin)排出滾(gun)筒(tong)(tong)，沒有達(da)(da)到(dao)干(gan)燥(zao)效(xiao)果的(de)(de)(de)濕(shi)物(wu)(wu)料(liao)(liao)因(yin)自重而不能快速行(xing)(xing)(xing)進(jin)(jin)(jin)，物(wu)(wu)料(liao)(liao)在(zai)(zai)此(ci)(ci)矩形(xing)抄板(ban)內(nei)(nei)(nei)進(jin)(jin)(jin)行(xing)(xing)(xing)充(chong)分干(gan)燥(zao)，由此(ci)(ci)完成(cheng)干(gan)燥(zao)目的(de)(de)(de)。
