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)(tong)(tong)體(ti)上裝(zhuang)(zhuang)有輪帶和(he)大(da)齒圈。筒(tong)(tong)(tong)體(ti)依靠輪帶支撐在(zai)托輪上。驅動(dong)(dong)裝(zhuang)(zhuang)置(zhi)端(duan)的(de)(de)輪帶一側裝(zhuang)(zhuang)有擋輪，以限制筒(tong)(tong)(tong)體(ti)沿傾斜方(fang)(fang)向(xiang)的(de)(de)竄動(dong)(dong)。在(zai)烘(hong)(hong)(hong)干機(ji)(ji)設(she)備(bei)底部(bu)溫(wen)(wen)度達400℃-800℃狀(zhuang)態下(xia)，物(wu)(wu)(wu)(wu)料(liao)(liao)由(you)提升機(ji)(ji)或(huo)者皮帶機(ji)(ji)從(cong)喂料(liao)(liao)口喂入(ru)烘(hong)(hong)(hong)干機(ji)(ji)筒(tong)(tong)(tong)體(ti)通過(guo)(guo)大(da)齒圈在(zai)驅動(dong)(dong)裝(zhuang)(zhuang)置(zhi)作(zuo)用(yong)下(xia)回(hui)(hui)轉，由(you)于筒(tong)(tong)(tong)體(ti)具有一定(ding)的(de)(de)斜度且連(lian)續(xu)不(bu)斷地回(hui)(hui)轉，使(shi)得物(wu)(wu)(wu)(wu)料(liao)(liao)在(zai)重力(li)的(de)(de)作(zuo)用(yong)下(xia)從(cong)高(gao)端(duan)向(xiang)低端(duan)移動(dong)(dong)，在(zai)移動(dong)(dong)的(de)(de)過(guo)(guo)程中逐(zhu)漸與熱源產生(sheng)的(de)(de)高(gao)溫(wen)(wen)氣(qi)體(ti)進行熱交換。烘(hong)(hong)(hong)干后的(de)(de)物(wu)(wu)(wu)(wu)料(liao)(liao)從(cong)低端(duan)卸(xie)出(chu)，物(wu)(wu)(wu)(wu)料(liao)(liao)所含(han)水(shui)份蒸發后被氣(qi)流帶走，物(wu)(wu)(wu)(wu)料(liao)(liao)在(zai)烘(hong)(hong)(hong)干機(ji)(ji)內停留時間約為13-20min，可根(gen)據根(gen)據物(wu)(wu)(wu)(wu)料(liao)(liao)含(han)水(shui)率(lv)進行不(bu)同設(she)計。熱氣(qi)體(ti)由(you)熱風爐生(sheng)成(cheng)，在(zai)烘(hong)(hong)(hong)干機(ji)(ji)內部(bu)物(wu)(wu)(wu)(wu)料(liao)(liao)相接(jie)觸(chu)，通過(guo)(guo)熱傳導，對流，輻(fu)射等多種方(fang)(fang)式將熱量傳遞給物(wu)(wu)(wu)(wu)料(liao)(liao)，從(cong)而使(shi)物(wu)(wu)(wu)(wu)料(liao)(liao)溫(wen)(wen)度不(bu)斷升高(gao)，水(shui)分(fen)不(bu)斷被蒸發，符合水(shui)分(fen)要求的(de)(de)物(wu)(wu)(wu)(wu)料(liao)(liao)從(cong)出(chu)料(liao)(liao)端(duan)出(chu)料(liao)(liao)罩下(xia)部(bu)出(chu)口卸(xie)料(liao)(liao),帶著水(shui)蒸汽的(de)(de)氣(qi)體(ti)經(jing)除(chu)塵器等環保設(she)施(shi)處(chu)理后達到環保要求排放標的(de)(de)煙氣(qi)由(you)引風機(ji)(ji)抽出(chu)經(jing)煙囪排空。

適(shi)用范圍(wei)

沙子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。