產品(pin)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(san)筒(tong)(tong)式烘(hong)干機(ji)是通過對單筒(tong)(tong)烘(hong)干機(ji)的單筒(tong)(tong)體(ti)(ti)(ti)改為(wei)套疊在(zai)一起的三(san)筒(tong)(tong),以縮短(duan)烘(hong)干機(ji)體(ti)(ti)(ti)的外形尺寸。該機(ji)工作時,物(wu)料和熱(re)氣流依次進入內至外筒(tong)(tong)體(ti)(ti)(ti),在(zai)機(ji)體(ti)(ti)(ti)Z形往復折流后,充分利用熱(re)能烘(hong)干物(wu)料后再卸出。
烘干機筒體部分由三個同軸水平(ping)放(fang)置的(de)內、中(zhong)、外筒套疊組(zu)成,這就使筒體的(de)截(jie)面得到充分的(de)利用。其筒體外形(xing)總(zong)長(chang)度(du)約為與之相(xiang)當的(de)單筒的(de)30-35%。從而(er)大(da)幅(fu)度(du)地(di)減少占(zhan)地(di)面積和廠房建筑面積。
該機(ji)的支(zhi)承(cheng)裝置,是(shi)在外筒上(shang)輪(lun)帶(dai)與(yu)托輪(lun)支(zhi)承(cheng),由電機(ji)直接帶(dai)動托輪(lun)。通過托輪(lun)與(yu)輪(lun)帶(dai)摩擦,使筒體轉動。該機(ji)總體結構緊湊、合理、簡單,為便于磨損件的檢修更換,在中間設計成(cheng)軸向剖(pou)分式,用螺栓固定連(lian)接。
工作原理
物(wu)料(liao)(liao)由(you)供料(liao)(liao)裝置進(jin)入回轉滾筒(tong)的(de)(de)(de)內層(ceng)(ceng)(ceng)(ceng),實現順流烘(hong)干(gan),物(wu)料(liao)(liao)在(zai)(zai)內層(ceng)(ceng)(ceng)(ceng)的(de)(de)(de)抄(chao)(chao)板下不斷抄(chao)(chao)起、散落呈螺(luo)旋行(xing)(xing)進(jin)式(shi)實現熱(re)交換,物(wu)料(liao)(liao)移(yi)動至內層(ceng)(ceng)(ceng)(ceng)的(de)(de)(de)另(ling)(ling)一(yi)端進(jin)入中(zhong)(zhong)層(ceng)(ceng)(ceng)(ceng),進(jin)行(xing)(xing)逆流烘(hong)干(gan),物(wu)料(liao)(liao)在(zai)(zai)中(zhong)(zhong)層(ceng)(ceng)(ceng)(ceng)不斷地被反(fan)復(fu)揚進(jin),呈進(jin)兩步退一(yi)步的(de)(de)(de)行(xing)(xing)進(jin)方(fang)式(shi),物(wu)料(liao)(liao)在(zai)(zai)中(zhong)(zhong)層(ceng)(ceng)(ceng)(ceng)既充分(fen)吸收內層(ceng)(ceng)(ceng)(ceng)滾筒(tong)散發(fa)的(de)(de)(de)熱(re)量,又吸收中(zhong)(zhong)層(ceng)(ceng)(ceng)(ceng)滾筒(tong)的(de)(de)(de)熱(re)量,同時(shi)又延長了干(gan)燥時(shi)間,物(wu)料(liao)(liao)在(zai)(zai)此(ci)達到干(gan)燥狀態。物(wu)料(liao)(liao)行(xing)(xing)至中(zhong)(zhong)層(ceng)(ceng)(ceng)(ceng)另(ling)(ling)一(yi)端而落入外層(ceng)(ceng)(ceng)(ceng),物(wu)料(liao)(liao)在(zai)(zai)外層(ceng)(ceng)(ceng)(ceng)滾筒(tong)內呈矩形多回路方(fang)式(shi)行(xing)(xing)進(jin),達到干(gan)燥效(xiao)果的(de)(de)(de)物(wu)料(liao)(liao)在(zai)(zai)熱(re)風作用下快速行(xing)(xing)進(jin)排出滾筒(tong),沒有(you)達到干(gan)燥效(xiao)果的(de)(de)(de)濕(shi)物(wu)料(liao)(liao)因自重(zhong)而不能快速行(xing)(xing)進(jin),物(wu)料(liao)(liao)在(zai)(zai)此(ci)矩形抄(chao)(chao)板內進(jin)行(xing)(xing)充分(fen)干(gan)燥,由(you)此(ci)完成干(gan)燥目(mu)的(de)(de)(de)。