石英砂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(zuo)原理
石英砂(sha)烘(hong)干機是一(yi)種傾斜(xie)(xie)安裝的回轉式鋼筒體(ti),斜(xie)(xie)度為3-6%,轉速(su)為5-9r/min。
筒(tong)(tong)體(ti)(ti)(ti)上裝(zhuang)有(you)輪帶和大齒(chi)圈(quan)。筒(tong)(tong)體(ti)(ti)(ti)依靠(kao)輪帶支撐(cheng)在托輪上。驅動裝(zhuang)置端(duan)的(de)輪帶一側裝(zhuang)有(you)擋輪,以限制筒(tong)(tong)體(ti)(ti)(ti)沿傾斜(xie)方向(xiang)的(de)竄動。在烘(hong)(hong)干機(ji)(ji)設(she)備底部溫度(du)達400℃-800℃狀(zhuang)態下(xia),物(wu)(wu)(wu)(wu)料(liao)(liao)由(you)提升機(ji)(ji)或者皮帶機(ji)(ji)從(cong)(cong)喂(wei)料(liao)(liao)口(kou)喂(wei)入烘(hong)(hong)干機(ji)(ji)筒(tong)(tong)體(ti)(ti)(ti)通過大齒(chi)圈(quan)在驅動裝(zhuang)置作用(yong)下(xia)回轉,由(you)于(yu)筒(tong)(tong)體(ti)(ti)(ti)具有(you)一定的(de)斜(xie)度(du)且(qie)連續不斷地回轉,使(shi)得(de)物(wu)(wu)(wu)(wu)料(liao)(liao)在重力的(de)作用(yong)下(xia)從(cong)(cong)高端(duan)向(xiang)低端(duan)移(yi)動,在移(yi)動的(de)過程中逐漸與(yu)熱(re)源產(chan)生的(de)高溫氣體(ti)(ti)(ti)進(jin)行(xing)(xing)熱(re)交換。烘(hong)(hong)干后(hou)的(de)物(wu)(wu)(wu)(wu)料(liao)(liao)從(cong)(cong)低端(duan)卸出,物(wu)(wu)(wu)(wu)料(liao)(liao)所含(han)水(shui)份(fen)蒸(zheng)發(fa)后(hou)被氣流(liu)(liu)帶走,物(wu)(wu)(wu)(wu)料(liao)(liao)在烘(hong)(hong)干機(ji)(ji)內停留時間約(yue)為13-20min,可根(gen)據根(gen)據物(wu)(wu)(wu)(wu)料(liao)(liao)含(han)水(shui)率(lv)進(jin)行(xing)(xing)不同設(she)計(ji)。熱(re)氣體(ti)(ti)(ti)由(you)熱(re)風(feng)(feng)爐生成,在烘(hong)(hong)干機(ji)(ji)內部物(wu)(wu)(wu)(wu)料(liao)(liao)相接觸,通過熱(re)傳導,對流(liu)(liu),輻射等(deng)多種方式將熱(re)量傳遞給物(wu)(wu)(wu)(wu)料(liao)(liao),從(cong)(cong)而(er)使(shi)物(wu)(wu)(wu)(wu)料(liao)(liao)溫度(du)不斷升高,水(shui)分不斷被蒸(zheng)發(fa),符(fu)合水(shui)分要(yao)求的(de)物(wu)(wu)(wu)(wu)料(liao)(liao)從(cong)(cong)出料(liao)(liao)端(duan)出料(liao)(liao)罩下(xia)部出口(kou)卸料(liao)(liao),帶著水(shui)蒸(zheng)汽的(de)氣體(ti)(ti)(ti)經除塵器等(deng)環保(bao)設(she)施處理后(hou)達到(dao)環保(bao)要(yao)求排(pai)放(fang)標的(de)煙(yan)氣由(you)引(yin)風(feng)(feng)機(ji)(ji)抽出經煙(yan)囪排(pai)空。
適(shi)用范圍
石英砂烘干機在傳統單筒回轉式烘干機結構的基礎上進行了大幅度的突破和創新。從烘干機理上看,物料與熱氣流的交換更加充分。適應粘土、石膏、煤、礦渣、煤矸石、混合料、干混砂漿、黃砂、鐵粉等各種原材料的烘干,也適用于磷肥、復合肥生產中原料及冶金、化工等行業的各種散狀物料的烘干。