沙子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
沙子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)輪帶(dai)和(he)大齒(chi)圈(quan)。筒(tong)體(ti)(ti)(ti)依靠輪帶(dai)支(zhi)撐在(zai)(zai)托輪上。驅動(dong)(dong)(dong)裝(zhuang)置(zhi)(zhi)端的(de)(de)輪帶(dai)一(yi)側裝(zhuang)有(you)擋(dang)輪,以(yi)限(xian)制筒(tong)體(ti)(ti)(ti)沿傾斜方向的(de)(de)竄動(dong)(dong)(dong)。在(zai)(zai)烘(hong)(hong)(hong)干機(ji)(ji)設備(bei)底部(bu)溫度(du)達400℃-800℃狀態下(xia)(xia)(xia),物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)由(you)提升機(ji)(ji)或(huo)者皮帶(dai)機(ji)(ji)從(cong)喂料(liao)(liao)(liao)(liao)口(kou)(kou)喂入烘(hong)(hong)(hong)干機(ji)(ji)筒(tong)體(ti)(ti)(ti)通(tong)(tong)過(guo)(guo)大齒(chi)圈(quan)在(zai)(zai)驅動(dong)(dong)(dong)裝(zhuang)置(zhi)(zhi)作用下(xia)(xia)(xia)回轉,由(you)于筒(tong)體(ti)(ti)(ti)具有(you)一(yi)定(ding)的(de)(de)斜度(du)且連續(xu)不(bu)斷地回轉,使得物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)在(zai)(zai)重力的(de)(de)作用下(xia)(xia)(xia)從(cong)高端向低(di)(di)端移動(dong)(dong)(dong),在(zai)(zai)移動(dong)(dong)(dong)的(de)(de)過(guo)(guo)程中逐漸與熱(re)(re)源產生的(de)(de)高溫氣(qi)(qi)體(ti)(ti)(ti)進(jin)行熱(re)(re)交換。烘(hong)(hong)(hong)干后的(de)(de)物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)從(cong)低(di)(di)端卸出(chu),物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)所含水份蒸(zheng)發(fa)后被氣(qi)(qi)流(liu)帶(dai)走,物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)在(zai)(zai)烘(hong)(hong)(hong)干機(ji)(ji)內停留(liu)時間約為13-20min,可(ke)根據(ju)根據(ju)物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)含水率進(jin)行不(bu)同設計。熱(re)(re)氣(qi)(qi)體(ti)(ti)(ti)由(you)熱(re)(re)風(feng)爐生成(cheng),在(zai)(zai)烘(hong)(hong)(hong)干機(ji)(ji)內部(bu)物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)相接觸,通(tong)(tong)過(guo)(guo)熱(re)(re)傳導(dao),對流(liu),輻(fu)射等(deng)多種方式將熱(re)(re)量傳遞給(gei)物(wu)(wu)(wu)料(liao)(liao)(liao)(liao),從(cong)而使物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)溫度(du)不(bu)斷升高,水分不(bu)斷被蒸(zheng)發(fa),符(fu)合水分要(yao)求的(de)(de)物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)從(cong)出(chu)料(liao)(liao)(liao)(liao)端出(chu)料(liao)(liao)(liao)(liao)罩下(xia)(xia)(xia)部(bu)出(chu)口(kou)(kou)卸料(liao)(liao)(liao)(liao),帶(dai)著(zhu)水蒸(zheng)汽的(de)(de)氣(qi)(qi)體(ti)(ti)(ti)經(jing)除塵器等(deng)環保設施處理后達到(dao)環保要(yao)求排(pai)放標的(de)(de)煙(yan)氣(qi)(qi)由(you)引風(feng)機(ji)(ji)抽出(chu)經(jing)煙(yan)囪排(pai)空。
適用范圍(wei)
沙子烘(hong)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。