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
三筒(tong)式(shi)烘(hong)干機(ji)是通過對單(dan)筒(tong)烘(hong)干機(ji)的單(dan)筒(tong)體(ti)改為套疊(die)在一起的三筒(tong),以縮(suo)短(duan)烘(hong)干機(ji)體(ti)的外(wai)形尺寸(cun)。該(gai)機(ji)工作時,物(wu)料和熱氣流依次進(jin)入內至外(wai)筒(tong)體(ti),在機(ji)體(ti)Z形往復折流后,充分(fen)利用熱能(neng)烘(hong)干物(wu)料后再卸出(chu)。
烘干機筒(tong)(tong)(tong)體(ti)部分(fen)由(you)三個同(tong)軸水平放(fang)置的(de)內、中(zhong)、外(wai)筒(tong)(tong)(tong)套疊(die)組成,這(zhe)就使筒(tong)(tong)(tong)體(ti)的(de)截面(mian)得(de)到(dao)充分(fen)的(de)利用。其筒(tong)(tong)(tong)體(ti)外(wai)形總(zong)長度(du)約為與之相當的(de)單筒(tong)(tong)(tong)的(de)30-35%。從(cong)而大幅度(du)地(di)減少(shao)占地(di)面(mian)積和廠房建筑面(mian)積。
該機的支承裝置,是在外筒上輪(lun)帶與(yu)托輪(lun)支承,由電(dian)機直接(jie)帶動托輪(lun)。通過托輪(lun)與(yu)輪(lun)帶摩(mo)擦,使筒體轉(zhuan)動。該機總(zong)體結構(gou)緊湊(cou)、合(he)理、簡(jian)單(dan),為便于磨損件的檢(jian)修(xiu)更換,在中間設計成(cheng)軸向剖分式,用螺(luo)栓(shuan)固定連接(jie)。
工(gong)作(zuo)原理
物(wu)料(liao)(liao)由供料(liao)(liao)裝置進(jin)入(ru)(ru)回轉滾(gun)筒的(de)內(nei)(nei)(nei)(nei)層(ceng)(ceng),實現(xian)順(shun)流烘干(gan)(gan),物(wu)料(liao)(liao)在(zai)(zai)內(nei)(nei)(nei)(nei)層(ceng)(ceng)的(de)抄(chao)板下不(bu)斷(duan)抄(chao)起、散落呈(cheng)螺旋行(xing)進(jin)式(shi)實現(xian)熱(re)交換,物(wu)料(liao)(liao)移(yi)動至內(nei)(nei)(nei)(nei)層(ceng)(ceng)的(de)另一(yi)端進(jin)入(ru)(ru)中(zhong)(zhong)層(ceng)(ceng),進(jin)行(xing)逆(ni)流烘干(gan)(gan),物(wu)料(liao)(liao)在(zai)(zai)中(zhong)(zhong)層(ceng)(ceng)不(bu)斷(duan)地被(bei)反復揚進(jin),呈(cheng)進(jin)兩(liang)步退(tui)一(yi)步的(de)行(xing)進(jin)方式(shi),物(wu)料(liao)(liao)在(zai)(zai)中(zhong)(zhong)層(ceng)(ceng)既充分吸收(shou)(shou)內(nei)(nei)(nei)(nei)層(ceng)(ceng)滾(gun)筒散發的(de)熱(re)量(liang),又吸收(shou)(shou)中(zhong)(zhong)層(ceng)(ceng)滾(gun)筒的(de)熱(re)量(liang),同時又延長(chang)了干(gan)(gan)燥時間,物(wu)料(liao)(liao)在(zai)(zai)此(ci)達(da)到(dao)(dao)干(gan)(gan)燥狀態。物(wu)料(liao)(liao)行(xing)至中(zhong)(zhong)層(ceng)(ceng)另一(yi)端而落入(ru)(ru)外(wai)層(ceng)(ceng),物(wu)料(liao)(liao)在(zai)(zai)外(wai)層(ceng)(ceng)滾(gun)筒內(nei)(nei)(nei)(nei)呈(cheng)矩形多回路方式(shi)行(xing)進(jin),達(da)到(dao)(dao)干(gan)(gan)燥效果的(de)物(wu)料(liao)(liao)在(zai)(zai)熱(re)風作用下快(kuai)(kuai)速行(xing)進(jin)排出滾(gun)筒,沒有達(da)到(dao)(dao)干(gan)(gan)燥效果的(de)濕物(wu)料(liao)(liao)因自重而不(bu)能快(kuai)(kuai)速行(xing)進(jin),物(wu)料(liao)(liao)在(zai)(zai)此(ci)矩形抄(chao)板內(nei)(nei)(nei)(nei)進(jin)行(xing)充分干(gan)(gan)燥,由此(ci)完成干(gan)(gan)燥目的(de)。