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(gong)作原理
沙子烘干機(ji)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)(tong)體(ti)(ti)(ti)(ti)上裝(zhuang)有(you)(you)輪(lun)(lun)帶(dai)(dai)和大(da)齒圈(quan)。筒(tong)(tong)體(ti)(ti)(ti)(ti)依(yi)靠輪(lun)(lun)帶(dai)(dai)支撐在托輪(lun)(lun)上。驅(qu)(qu)動裝(zhuang)置(zhi)端(duan)(duan)的(de)(de)輪(lun)(lun)帶(dai)(dai)一側裝(zhuang)有(you)(you)擋輪(lun)(lun),以(yi)限制筒(tong)(tong)體(ti)(ti)(ti)(ti)沿傾斜(xie)方向的(de)(de)竄(cuan)動。在烘(hong)(hong)(hong)干機(ji)(ji)設(she)備底部(bu)溫(wen)(wen)(wen)度(du)達400℃-800℃狀(zhuang)態下(xia),物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)由提(ti)升(sheng)機(ji)(ji)或者(zhe)皮帶(dai)(dai)機(ji)(ji)從(cong)(cong)喂料(liao)(liao)(liao)口喂入(ru)烘(hong)(hong)(hong)干機(ji)(ji)筒(tong)(tong)體(ti)(ti)(ti)(ti)通過(guo)大(da)齒圈(quan)在驅(qu)(qu)動裝(zhuang)置(zhi)作(zuo)用下(xia)回轉(zhuan),由于筒(tong)(tong)體(ti)(ti)(ti)(ti)具有(you)(you)一定(ding)的(de)(de)斜(xie)度(du)且連續不(bu)(bu)斷地回轉(zhuan),使得物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)在重力的(de)(de)作(zuo)用下(xia)從(cong)(cong)高端(duan)(duan)向低端(duan)(duan)移動,在移動的(de)(de)過(guo)程中逐漸與熱(re)(re)源產生(sheng)(sheng)的(de)(de)高溫(wen)(wen)(wen)氣體(ti)(ti)(ti)(ti)進行熱(re)(re)交換。烘(hong)(hong)(hong)干后的(de)(de)物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)從(cong)(cong)低端(duan)(duan)卸(xie)出,物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)所(suo)含水份蒸發后被(bei)氣流(liu)帶(dai)(dai)走(zou),物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)在烘(hong)(hong)(hong)干機(ji)(ji)內停(ting)留時間約為13-20min,可根(gen)據(ju)根(gen)據(ju)物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)含水率進行不(bu)(bu)同設(she)計(ji)。熱(re)(re)氣體(ti)(ti)(ti)(ti)由熱(re)(re)風(feng)爐生(sheng)(sheng)成(cheng),在烘(hong)(hong)(hong)干機(ji)(ji)內部(bu)物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)相接觸,通過(guo)熱(re)(re)傳導,對流(liu),輻射等(deng)(deng)多種方式將熱(re)(re)量傳遞(di)給物(wu)(wu)(wu)(wu)料(liao)(liao)(liao),從(cong)(cong)而使物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)溫(wen)(wen)(wen)度(du)不(bu)(bu)斷升(sheng)高,水分不(bu)(bu)斷被(bei)蒸發,符合(he)水分要求的(de)(de)物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)從(cong)(cong)出料(liao)(liao)(liao)端(duan)(duan)出料(liao)(liao)(liao)罩下(xia)部(bu)出口卸(xie)料(liao)(liao)(liao),帶(dai)(dai)著水蒸汽(qi)的(de)(de)氣體(ti)(ti)(ti)(ti)經(jing)除塵器等(deng)(deng)環保設(she)施(shi)處理后達到環保要求排(pai)放標的(de)(de)煙氣由引(yin)風(feng)機(ji)(ji)抽出經(jing)煙囪排(pai)空。
適(shi)用范圍(wei)
沙(sha)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。