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)(tong)式烘(hong)干機(ji)(ji)是通過(guo)對單筒(tong)(tong)烘(hong)干機(ji)(ji)的單筒(tong)(tong)體(ti)(ti)改(gai)為套疊在一起(qi)的三筒(tong)(tong),以縮(suo)短烘(hong)干機(ji)(ji)體(ti)(ti)的外(wai)形尺(chi)寸。該機(ji)(ji)工作時,物料(liao)和熱氣流依次進入內(nei)至外(wai)筒(tong)(tong)體(ti)(ti),在機(ji)(ji)體(ti)(ti)Z形往復折流后,充分(fen)利用熱能(neng)烘(hong)干物料(liao)后再卸(xie)出。
烘干機筒體部分由三個同軸(zhou)水平放置(zhi)的(de)內、中、外筒套疊組成,這(zhe)就(jiu)使筒體的(de)截(jie)面得到充分的(de)利(li)用。其筒體外形總長度約為與之相當的(de)單(dan)筒的(de)30-35%。從而大幅度地(di)(di)減(jian)少占地(di)(di)面積和廠房建筑面積。
該機(ji)的支承裝置(zhi),是在(zai)外(wai)筒(tong)上(shang)輪(lun)帶(dai)與托輪(lun)支承,由電機(ji)直接帶(dai)動(dong)托輪(lun)。通過(guo)托輪(lun)與輪(lun)帶(dai)摩擦,使(shi)筒(tong)體轉動(dong)。該機(ji)總體結構緊湊(cou)、合理、簡單,為便于磨(mo)損件的檢(jian)修更換,在(zai)中間設計成軸向剖分式,用螺栓固定連(lian)接。
工(gong)作原理
物(wu)料(liao)(liao)由供料(liao)(liao)裝置進入回(hui)轉滾筒(tong)的(de)(de)內(nei)層(ceng)(ceng)(ceng)(ceng),實(shi)現順流烘干(gan),物(wu)料(liao)(liao)在(zai)(zai)(zai)內(nei)層(ceng)(ceng)(ceng)(ceng)的(de)(de)抄板(ban)下(xia)(xia)不(bu)斷(duan)抄起、散落呈(cheng)(cheng)螺旋行(xing)(xing)進式實(shi)現熱交換,物(wu)料(liao)(liao)移動至內(nei)層(ceng)(ceng)(ceng)(ceng)的(de)(de)另(ling)一端進入中(zhong)(zhong)層(ceng)(ceng)(ceng)(ceng),進行(xing)(xing)逆流烘干(gan),物(wu)料(liao)(liao)在(zai)(zai)(zai)中(zhong)(zhong)層(ceng)(ceng)(ceng)(ceng)不(bu)斷(duan)地被反復揚進,呈(cheng)(cheng)進兩步退一步的(de)(de)行(xing)(xing)進方式,物(wu)料(liao)(liao)在(zai)(zai)(zai)中(zhong)(zhong)層(ceng)(ceng)(ceng)(ceng)既充分(fen)(fen)吸(xi)收內(nei)層(ceng)(ceng)(ceng)(ceng)滾筒(tong)散發的(de)(de)熱量(liang),又(you)吸(xi)收中(zhong)(zhong)層(ceng)(ceng)(ceng)(ceng)滾筒(tong)的(de)(de)熱量(liang),同(tong)時又(you)延(yan)長了干(gan)燥(zao)時間,物(wu)料(liao)(liao)在(zai)(zai)(zai)此達到(dao)干(gan)燥(zao)狀態。物(wu)料(liao)(liao)行(xing)(xing)至中(zhong)(zhong)層(ceng)(ceng)(ceng)(ceng)另(ling)一端而落入外層(ceng)(ceng)(ceng)(ceng),物(wu)料(liao)(liao)在(zai)(zai)(zai)外層(ceng)(ceng)(ceng)(ceng)滾筒(tong)內(nei)呈(cheng)(cheng)矩形多回(hui)路(lu)方式行(xing)(xing)進,達到(dao)干(gan)燥(zao)效果的(de)(de)物(wu)料(liao)(liao)在(zai)(zai)(zai)熱風作用下(xia)(xia)快(kuai)速行(xing)(xing)進排出滾筒(tong),沒(mei)有達到(dao)干(gan)燥(zao)效果的(de)(de)濕物(wu)料(liao)(liao)因自重而不(bu)能快(kuai)速行(xing)(xing)進,物(wu)料(liao)(liao)在(zai)(zai)(zai)此矩形抄板(ban)內(nei)進行(xing)(xing)充分(fen)(fen)干(gan)燥(zao),由此完(wan)成干(gan)燥(zao)目的(de)(de)。