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(zuo)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)體(ti)(ti)上裝(zhuang)(zhuang)有(you)(you)輪(lun)(lun)帶(dai)和大齒圈。筒(tong)(tong)體(ti)(ti)依靠(kao)輪(lun)(lun)帶(dai)支(zhi)撐在(zai)(zai)托(tuo)輪(lun)(lun)上。驅(qu)動裝(zhuang)(zhuang)置(zhi)端的(de)(de)輪(lun)(lun)帶(dai)一(yi)側裝(zhuang)(zhuang)有(you)(you)擋輪(lun)(lun),以限制筒(tong)(tong)體(ti)(ti)沿傾斜方(fang)向(xiang)的(de)(de)竄動。在(zai)(zai)烘(hong)(hong)干機(ji)設備底部(bu)溫(wen)度(du)達400℃-800℃狀態(tai)下,物(wu)(wu)(wu)(wu)(wu)(wu)料(liao)(liao)由(you)提升機(ji)或者皮(pi)帶(dai)機(ji)從(cong)(cong)喂(wei)料(liao)(liao)口喂(wei)入烘(hong)(hong)干機(ji)筒(tong)(tong)體(ti)(ti)通(tong)過大齒圈在(zai)(zai)驅(qu)動裝(zhuang)(zhuang)置(zhi)作(zuo)用下回(hui)(hui)轉(zhuan),由(you)于(yu)筒(tong)(tong)體(ti)(ti)具有(you)(you)一(yi)定(ding)的(de)(de)斜度(du)且連續不(bu)(bu)斷地回(hui)(hui)轉(zhuan),使得物(wu)(wu)(wu)(wu)(wu)(wu)料(liao)(liao)在(zai)(zai)重力的(de)(de)作(zuo)用下從(cong)(cong)高端向(xiang)低端移動,在(zai)(zai)移動的(de)(de)過程中(zhong)逐(zhu)漸與(yu)熱源(yuan)產生(sheng)(sheng)的(de)(de)高溫(wen)氣體(ti)(ti)進行(xing)熱交換(huan)。烘(hong)(hong)干后的(de)(de)物(wu)(wu)(wu)(wu)(wu)(wu)料(liao)(liao)從(cong)(cong)低端卸出(chu),物(wu)(wu)(wu)(wu)(wu)(wu)料(liao)(liao)所含水份蒸發(fa)后被氣流帶(dai)走(zou),物(wu)(wu)(wu)(wu)(wu)(wu)料(liao)(liao)在(zai)(zai)烘(hong)(hong)干機(ji)內停留時(shi)間約為13-20min,可根據(ju)根據(ju)物(wu)(wu)(wu)(wu)(wu)(wu)料(liao)(liao)含水率進行(xing)不(bu)(bu)同設計。熱氣體(ti)(ti)由(you)熱風爐生(sheng)(sheng)成,在(zai)(zai)烘(hong)(hong)干機(ji)內部(bu)物(wu)(wu)(wu)(wu)(wu)(wu)料(liao)(liao)相接觸,通(tong)過熱傳導,對流,輻射等多種方(fang)式將熱量傳遞給物(wu)(wu)(wu)(wu)(wu)(wu)料(liao)(liao),從(cong)(cong)而使物(wu)(wu)(wu)(wu)(wu)(wu)料(liao)(liao)溫(wen)度(du)不(bu)(bu)斷升高,水分不(bu)(bu)斷被蒸發(fa),符合水分要求的(de)(de)物(wu)(wu)(wu)(wu)(wu)(wu)料(liao)(liao)從(cong)(cong)出(chu)料(liao)(liao)端出(chu)料(liao)(liao)罩下部(bu)出(chu)口卸料(liao)(liao),帶(dai)著水蒸汽的(de)(de)氣體(ti)(ti)經除塵(chen)器等環(huan)保設施處理后達到環(huan)保要求排放標的(de)(de)煙(yan)氣由(you)引風機(ji)抽出(chu)經煙(yan)囪排空。
適用范圍
沙子烘(hong)干(gan)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。