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(chan)品結構
三筒(tong)(tong)式(shi)烘(hong)干(gan)機是通過對(dui)單筒(tong)(tong)烘(hong)干(gan)機的(de)(de)單筒(tong)(tong)體(ti)(ti)改為套(tao)疊(die)在一起(qi)的(de)(de)三筒(tong)(tong),以縮短(duan)烘(hong)干(gan)機體(ti)(ti)的(de)(de)外形(xing)(xing)尺寸。該(gai)機工作時,物料和(he)熱氣流(liu)依次進入內(nei)至外筒(tong)(tong)體(ti)(ti),在機體(ti)(ti)Z形(xing)(xing)往復(fu)折流(liu)后,充分利用熱能烘(hong)干(gan)物料后再卸出。
烘干機筒(tong)體(ti)部分由三(san)個同軸水平(ping)放(fang)置的內、中、外筒(tong)套疊組成,這(zhe)就(jiu)使筒(tong)體(ti)的截(jie)面(mian)得到充分的利用。其筒(tong)體(ti)外形總長(chang)度(du)約為與之相(xiang)當的單筒(tong)的30-35%。從而大幅度(du)地(di)減(jian)少占地(di)面(mian)積和廠房建(jian)筑(zhu)面(mian)積。
該機的(de)支承裝置(zhi),是在外筒(tong)上輪(lun)帶(dai)(dai)(dai)與托(tuo)輪(lun)支承,由電機直(zhi)接(jie)(jie)帶(dai)(dai)(dai)動(dong)托(tuo)輪(lun)。通過(guo)托(tuo)輪(lun)與輪(lun)帶(dai)(dai)(dai)摩擦,使筒(tong)體轉動(dong)。該機總體結(jie)構緊湊、合理(li)、簡單,為便(bian)于磨損件(jian)的(de)檢修更換,在中間設(she)計成軸向剖分式(shi),用螺栓固(gu)定連接(jie)(jie)。
工作(zuo)原理
物(wu)料(liao)(liao)(liao)(liao)由(you)(you)供料(liao)(liao)(liao)(liao)裝(zhuang)置進(jin)入回(hui)轉(zhuan)滾(gun)筒(tong)的內(nei)(nei)層(ceng)(ceng)(ceng),實(shi)現(xian)順流烘干,物(wu)料(liao)(liao)(liao)(liao)在(zai)內(nei)(nei)層(ceng)(ceng)(ceng)的抄板下不(bu)(bu)斷抄起、散落(luo)呈(cheng)螺旋行(xing)進(jin)式(shi)(shi)實(shi)現(xian)熱(re)交(jiao)換,物(wu)料(liao)(liao)(liao)(liao)移(yi)動至內(nei)(nei)層(ceng)(ceng)(ceng)的另(ling)(ling)一端進(jin)入中層(ceng)(ceng)(ceng),進(jin)行(xing)逆(ni)流烘干,物(wu)料(liao)(liao)(liao)(liao)在(zai)中層(ceng)(ceng)(ceng)不(bu)(bu)斷地被反(fan)復(fu)揚(yang)進(jin),呈(cheng)進(jin)兩步退一步的行(xing)進(jin)方式(shi)(shi),物(wu)料(liao)(liao)(liao)(liao)在(zai)中層(ceng)(ceng)(ceng)既充(chong)分(fen)(fen)吸收內(nei)(nei)層(ceng)(ceng)(ceng)滾(gun)筒(tong)散發的熱(re)量,又吸收中層(ceng)(ceng)(ceng)滾(gun)筒(tong)的熱(re)量,同時(shi)又延長了干燥時(shi)間(jian),物(wu)料(liao)(liao)(liao)(liao)在(zai)此(ci)達(da)到(dao)干燥狀(zhuang)態。物(wu)料(liao)(liao)(liao)(liao)行(xing)至中層(ceng)(ceng)(ceng)另(ling)(ling)一端而(er)落(luo)入外層(ceng)(ceng)(ceng),物(wu)料(liao)(liao)(liao)(liao)在(zai)外層(ceng)(ceng)(ceng)滾(gun)筒(tong)內(nei)(nei)呈(cheng)矩(ju)形多(duo)回(hui)路(lu)方式(shi)(shi)行(xing)進(jin),達(da)到(dao)干燥效(xiao)果的物(wu)料(liao)(liao)(liao)(liao)在(zai)熱(re)風作(zuo)用(yong)下快(kuai)速行(xing)進(jin)排出滾(gun)筒(tong),沒(mei)有達(da)到(dao)干燥效(xiao)果的濕物(wu)料(liao)(liao)(liao)(liao)因(yin)自重而(er)不(bu)(bu)能快(kuai)速行(xing)進(jin),物(wu)料(liao)(liao)(liao)(liao)在(zai)此(ci)矩(ju)形抄板內(nei)(nei)進(jin)行(xing)充(chong)分(fen)(fen)干燥,由(you)(you)此(ci)完(wan)成(cheng)干燥目的。