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。
工作原理
石英砂烘干機是一種傾(qing)斜安裝(zhuang)的回(hui)轉式(shi)鋼筒體,斜度為3-6%,轉速為5-9r/min。
筒(tong)(tong)體(ti)(ti)(ti)上裝(zhuang)有(you)輪帶(dai)和大齒圈。筒(tong)(tong)體(ti)(ti)(ti)依靠輪帶(dai)支撐在(zai)(zai)(zai)托輪上。驅動(dong)(dong)裝(zhuang)置(zhi)端(duan)(duan)(duan)的(de)(de)輪帶(dai)一(yi)(yi)側裝(zhuang)有(you)擋輪,以(yi)限(xian)制筒(tong)(tong)體(ti)(ti)(ti)沿(yan)傾斜方(fang)向的(de)(de)竄動(dong)(dong)。在(zai)(zai)(zai)烘(hong)干機(ji)設備(bei)底部(bu)溫(wen)度(du)達(da)400℃-800℃狀態下(xia),物(wu)(wu)料(liao)(liao)(liao)(liao)(liao)由(you)提升機(ji)或者皮帶(dai)機(ji)從(cong)(cong)喂料(liao)(liao)(liao)(liao)(liao)口喂入烘(hong)干機(ji)筒(tong)(tong)體(ti)(ti)(ti)通(tong)過(guo)大齒圈在(zai)(zai)(zai)驅動(dong)(dong)裝(zhuang)置(zhi)作(zuo)(zuo)用(yong)下(xia)回(hui)轉,由(you)于筒(tong)(tong)體(ti)(ti)(ti)具有(you)一(yi)(yi)定的(de)(de)斜度(du)且連續不斷(duan)地回(hui)轉,使(shi)得物(wu)(wu)料(liao)(liao)(liao)(liao)(liao)在(zai)(zai)(zai)重力的(de)(de)作(zuo)(zuo)用(yong)下(xia)從(cong)(cong)高端(duan)(duan)(duan)向低(di)端(duan)(duan)(duan)移(yi)動(dong)(dong),在(zai)(zai)(zai)移(yi)動(dong)(dong)的(de)(de)過(guo)程中(zhong)逐漸(jian)與熱源產生(sheng)的(de)(de)高溫(wen)氣體(ti)(ti)(ti)進行熱交換。烘(hong)干后(hou)的(de)(de)物(wu)(wu)料(liao)(liao)(liao)(liao)(liao)從(cong)(cong)低(di)端(duan)(duan)(duan)卸(xie)出(chu),物(wu)(wu)料(liao)(liao)(liao)(liao)(liao)所(suo)含(han)水份蒸(zheng)(zheng)發后(hou)被氣流帶(dai)走(zou),物(wu)(wu)料(liao)(liao)(liao)(liao)(liao)在(zai)(zai)(zai)烘(hong)干機(ji)內(nei)停留時間約(yue)為13-20min,可(ke)根據根據物(wu)(wu)料(liao)(liao)(liao)(liao)(liao)含(han)水率(lv)進行不同設計。熱氣體(ti)(ti)(ti)由(you)熱風(feng)(feng)爐生(sheng)成,在(zai)(zai)(zai)烘(hong)干機(ji)內(nei)部(bu)物(wu)(wu)料(liao)(liao)(liao)(liao)(liao)相接觸,通(tong)過(guo)熱傳(chuan)導,對流,輻射(she)等(deng)多種方(fang)式將熱量傳(chuan)遞給物(wu)(wu)料(liao)(liao)(liao)(liao)(liao),從(cong)(cong)而使(shi)物(wu)(wu)料(liao)(liao)(liao)(liao)(liao)溫(wen)度(du)不斷(duan)升高,水分不斷(duan)被蒸(zheng)(zheng)發,符合(he)水分要(yao)求的(de)(de)物(wu)(wu)料(liao)(liao)(liao)(liao)(liao)從(cong)(cong)出(chu)料(liao)(liao)(liao)(liao)(liao)端(duan)(duan)(duan)出(chu)料(liao)(liao)(liao)(liao)(liao)罩下(xia)部(bu)出(chu)口卸(xie)料(liao)(liao)(liao)(liao)(liao),帶(dai)著水蒸(zheng)(zheng)汽的(de)(de)氣體(ti)(ti)(ti)經(jing)(jing)除(chu)塵器等(deng)環(huan)保設施處(chu)理(li)后(hou)達(da)到環(huan)保要(yao)求排(pai)放(fang)標的(de)(de)煙(yan)(yan)氣由(you)引(yin)風(feng)(feng)機(ji)抽出(chu)經(jing)(jing)煙(yan)(yan)囪排(pai)空。
適用范(fan)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。