回轉式烘干機是一種工業設備,應用于肥料、冶金、化工、礦山、電力等行業。
工作原理
回轉烘干機是一種傾斜安裝的回轉式鋼筒體,斜度為3-6%,轉速為5-9r/min。
筒(tong)體(ti)(ti)(ti)上裝(zhuang)有(you)輪(lun)帶和大(da)齒圈。筒(tong)體(ti)(ti)(ti)依靠(kao)輪(lun)帶支撐在(zai)托輪(lun)上。驅動裝(zhuang)置(zhi)端(duan)(duan)的(de)輪(lun)帶一側裝(zhuang)有(you)擋輪(lun),以限(xian)制筒(tong)體(ti)(ti)(ti)沿傾斜方向(xiang)的(de)竄動。在(zai)烘(hong)(hong)干機(ji)設備底部溫度(du)達(da)400℃-800℃狀態下(xia),物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)(liao)由(you)提升機(ji)或者皮帶機(ji)從喂(wei)料(liao)(liao)(liao)(liao)口喂(wei)入烘(hong)(hong)干機(ji)筒(tong)體(ti)(ti)(ti)通(tong)過大(da)齒圈在(zai)驅動裝(zhuang)置(zhi)作(zuo)用(yong)下(xia)回(hui)轉,由(you)于(yu)筒(tong)體(ti)(ti)(ti)具有(you)一定的(de)斜度(du)且(qie)連續不斷地(di)回(hui)轉,使得物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)(liao)在(zai)重(zhong)力(li)的(de)作(zuo)用(yong)下(xia)從高端(duan)(duan)向(xiang)低(di)端(duan)(duan)移動,在(zai)移動的(de)過程中逐(zhu)漸與熱(re)源產生(sheng)的(de)高溫氣(qi)體(ti)(ti)(ti)進行熱(re)交(jiao)換。烘(hong)(hong)干后(hou)的(de)物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)(liao)從低(di)端(duan)(duan)卸出,物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)(liao)所含(han)(han)水(shui)(shui)份蒸發后(hou)被氣(qi)流帶走,物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)(liao)在(zai)烘(hong)(hong)干機(ji)內(nei)停留時間約為13-20min,可(ke)根(gen)據根(gen)據物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)(liao)含(han)(han)水(shui)(shui)率(lv)進行不同設計。熱(re)氣(qi)體(ti)(ti)(ti)由(you)熱(re)風爐生(sheng)成(cheng),在(zai)烘(hong)(hong)干機(ji)內(nei)部物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)(liao)相接(jie)觸,通(tong)過熱(re)傳導(dao),對流,輻射(she)等多種方式(shi)將熱(re)量傳遞(di)給(gei)物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)(liao),從而使物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)(liao)溫度(du)不斷升高,水(shui)(shui)分不斷被蒸發,符合水(shui)(shui)分要(yao)求的(de)物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)(liao)從出料(liao)(liao)(liao)(liao)端(duan)(duan)出料(liao)(liao)(liao)(liao)罩下(xia)部出口卸料(liao)(liao)(liao)(liao),帶著水(shui)(shui)蒸汽的(de)氣(qi)體(ti)(ti)(ti)經除塵(chen)器等環(huan)保設施處理后(hou)達(da)到環(huan)保要(yao)求排放標(biao)的(de)煙(yan)氣(qi)由(you)引(yin)風機(ji)抽出經煙(yan)囪排空。
適用范圍(wei)
回(hui)轉式(shi)烘(hong)(hong)干(gan)(gan)機(ji)在傳統單筒回(hui)轉式(shi)烘(hong)(hong)干(gan)(gan)機(ji)結構(gou)的基礎上進行(xing)了大幅度的突(tu)破和創(chuang)新。從烘(hong)(hong)干(gan)(gan)機(ji)理(li)上看,物(wu)料(liao)(liao)與熱(re)氣(qi)流的交換(huan)更加充分、更為科學合(he)理(li)。適(shi)應粘土、石膏(gao)、煤、礦(kuang)渣、煤矸石、混合(he)料(liao)(liao)、干(gan)(gan)混砂(sha)漿、黃(huang)砂(sha)、鐵粉(fen)等(deng)各(ge)種(zhong)原材料(liao)(liao)的烘(hong)(hong)干(gan)(gan),也適(shi)用于磷肥、復合(he)肥生產中(zhong)原料(liao)(liao)及冶金、化工(gong)等(deng)行(xing)業的各(ge)種(zhong)散狀物(wu)料(liao)(liao)的烘(hong)(hong)干(gan)(gan)。