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(zuo)原理
石英砂(sha)烘干機是一種(zhong)傾斜安(an)裝(zhuang)的回轉式鋼筒(tong)體,斜度為3-6%,轉速為5-9r/min。
筒(tong)(tong)體(ti)上裝有(you)輪(lun)帶和大(da)齒圈。筒(tong)(tong)體(ti)依(yi)靠(kao)輪(lun)帶支(zhi)撐在托輪(lun)上。驅動(dong)(dong)裝置(zhi)(zhi)端的(de)(de)輪(lun)帶一側(ce)裝有(you)擋輪(lun),以(yi)限制(zhi)筒(tong)(tong)體(ti)沿傾斜方(fang)向(xiang)的(de)(de)竄動(dong)(dong)。在烘(hong)(hong)干(gan)(gan)機設(she)備底部(bu)溫度(du)達400℃-800℃狀態下,物(wu)(wu)(wu)(wu)(wu)料(liao)(liao)由(you)提(ti)升(sheng)機或者(zhe)皮(pi)帶機從(cong)喂(wei)料(liao)(liao)口(kou)喂(wei)入烘(hong)(hong)干(gan)(gan)機筒(tong)(tong)體(ti)通過(guo)大(da)齒圈在驅動(dong)(dong)裝置(zhi)(zhi)作(zuo)(zuo)用下回轉,由(you)于筒(tong)(tong)體(ti)具有(you)一定的(de)(de)斜度(du)且(qie)連續不(bu)(bu)斷地回轉,使(shi)(shi)得物(wu)(wu)(wu)(wu)(wu)料(liao)(liao)在重(zhong)力(li)的(de)(de)作(zuo)(zuo)用下從(cong)高端向(xiang)低端移(yi)動(dong)(dong),在移(yi)動(dong)(dong)的(de)(de)過(guo)程(cheng)中(zhong)逐(zhu)漸與熱源產生(sheng)的(de)(de)高溫氣(qi)體(ti)進(jin)行(xing)熱交換(huan)。烘(hong)(hong)干(gan)(gan)后(hou)(hou)的(de)(de)物(wu)(wu)(wu)(wu)(wu)料(liao)(liao)從(cong)低端卸(xie)出(chu)(chu),物(wu)(wu)(wu)(wu)(wu)料(liao)(liao)所含水(shui)份蒸(zheng)(zheng)(zheng)發后(hou)(hou)被氣(qi)流(liu)帶走,物(wu)(wu)(wu)(wu)(wu)料(liao)(liao)在烘(hong)(hong)干(gan)(gan)機內停留時間約為13-20min,可根據根據物(wu)(wu)(wu)(wu)(wu)料(liao)(liao)含水(shui)率進(jin)行(xing)不(bu)(bu)同設(she)計。熱氣(qi)體(ti)由(you)熱風(feng)(feng)爐生(sheng)成,在烘(hong)(hong)干(gan)(gan)機內部(bu)物(wu)(wu)(wu)(wu)(wu)料(liao)(liao)相(xiang)接觸,通過(guo)熱傳導(dao),對流(liu),輻射等多種(zhong)方(fang)式將熱量傳遞給物(wu)(wu)(wu)(wu)(wu)料(liao)(liao),從(cong)而(er)使(shi)(shi)物(wu)(wu)(wu)(wu)(wu)料(liao)(liao)溫度(du)不(bu)(bu)斷升(sheng)高,水(shui)分(fen)不(bu)(bu)斷被蒸(zheng)(zheng)(zheng)發,符合水(shui)分(fen)要求的(de)(de)物(wu)(wu)(wu)(wu)(wu)料(liao)(liao)從(cong)出(chu)(chu)料(liao)(liao)端出(chu)(chu)料(liao)(liao)罩(zhao)下部(bu)出(chu)(chu)口(kou)卸(xie)料(liao)(liao),帶著水(shui)蒸(zheng)(zheng)(zheng)汽的(de)(de)氣(qi)體(ti)經(jing)除塵器(qi)等環保(bao)設(she)施處理后(hou)(hou)達到環保(bao)要求排放(fang)標的(de)(de)煙氣(qi)由(you)引風(feng)(feng)機抽出(chu)(chu)經(jing)煙囪排空。
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。