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)式(shi)烘干(gan)機(ji)(ji)是通過(guo)對(dui)單筒(tong)烘干(gan)機(ji)(ji)的(de)單筒(tong)體(ti)改為套疊(die)在(zai)一(yi)起的(de)三筒(tong),以縮(suo)短烘干(gan)機(ji)(ji)體(ti)的(de)外形尺寸。該機(ji)(ji)工作時,物料(liao)和熱(re)氣(qi)流依次進入內至外筒(tong)體(ti),在(zai)機(ji)(ji)體(ti)Z形往復折流后,充分利用熱(re)能烘干(gan)物料(liao)后再(zai)卸(xie)出。
烘干機筒(tong)體(ti)(ti)部分(fen)由三個同(tong)軸水平放置的內(nei)、中、外筒(tong)套疊組成,這就使(shi)筒(tong)體(ti)(ti)的截面(mian)得到(dao)充分(fen)的利用。其筒(tong)體(ti)(ti)外形總長度約(yue)為與之相當(dang)的單筒(tong)的30-35%。從而(er)大(da)幅度地(di)減(jian)少占地(di)面(mian)積(ji)和廠房建筑(zhu)面(mian)積(ji)。
該機(ji)的支承(cheng)裝置,是在(zai)外筒上輪(lun)(lun)帶與(yu)托輪(lun)(lun)支承(cheng),由電機(ji)直接(jie)(jie)帶動(dong)托輪(lun)(lun)。通過托輪(lun)(lun)與(yu)輪(lun)(lun)帶摩擦,使筒體(ti)轉動(dong)。該機(ji)總體(ti)結構緊湊、合理、簡單(dan),為(wei)便(bian)于(yu)磨損件的檢(jian)修更換,在(zai)中(zhong)間設(she)計成(cheng)軸向剖分(fen)式,用(yong)螺栓固定連接(jie)(jie)。
工作原理(li)
物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)由(you)供料(liao)(liao)(liao)(liao)(liao)裝置進(jin)(jin)(jin)入(ru)(ru)回(hui)轉滾(gun)筒(tong)的內層(ceng)(ceng),實現順流烘(hong)(hong)干(gan),物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)在(zai)內層(ceng)(ceng)的抄板(ban)下(xia)不(bu)斷抄起、散(san)落呈(cheng)螺(luo)旋行(xing)進(jin)(jin)(jin)式(shi)實現熱(re)交換,物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)移動至內層(ceng)(ceng)的另一端(duan)進(jin)(jin)(jin)入(ru)(ru)中(zhong)層(ceng)(ceng),進(jin)(jin)(jin)行(xing)逆流烘(hong)(hong)干(gan),物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)在(zai)中(zhong)層(ceng)(ceng)不(bu)斷地被(bei)反復揚進(jin)(jin)(jin),呈(cheng)進(jin)(jin)(jin)兩(liang)步退一步的行(xing)進(jin)(jin)(jin)方式(shi),物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)在(zai)中(zhong)層(ceng)(ceng)既充分(fen)吸(xi)收內層(ceng)(ceng)滾(gun)筒(tong)散(san)發(fa)的熱(re)量(liang),又吸(xi)收中(zhong)層(ceng)(ceng)滾(gun)筒(tong)的熱(re)量(liang),同(tong)時又延長了干(gan)燥(zao)(zao)時間,物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)在(zai)此(ci)達到(dao)干(gan)燥(zao)(zao)狀態。物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)行(xing)至中(zhong)層(ceng)(ceng)另一端(duan)而落入(ru)(ru)外層(ceng)(ceng),物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)在(zai)外層(ceng)(ceng)滾(gun)筒(tong)內呈(cheng)矩形多回(hui)路(lu)方式(shi)行(xing)進(jin)(jin)(jin),達到(dao)干(gan)燥(zao)(zao)效果的物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)在(zai)熱(re)風作用(yong)下(xia)快(kuai)速行(xing)進(jin)(jin)(jin)排(pai)出(chu)滾(gun)筒(tong),沒有達到(dao)干(gan)燥(zao)(zao)效果的濕物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)因自重而不(bu)能快(kuai)速行(xing)進(jin)(jin)(jin),物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)(liao)在(zai)此(ci)矩形抄板(ban)內進(jin)(jin)(jin)行(xing)充分(fen)干(gan)燥(zao)(zao),由(you)此(ci)完成干(gan)燥(zao)(zao)目的。