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(gong)作原理

石英砂烘干機是一種傾斜安裝的回轉式鋼筒(tong)體，斜度為(wei)3-6％，轉速(su)為(wei)5-9r/min。

筒(tong)(tong)(tong)體(ti)上(shang)(shang)裝(zhuang)有(you)輪帶和大齒(chi)圈。筒(tong)(tong)(tong)體(ti)依靠輪帶支撐在(zai)(zai)(zai)托輪上(shang)(shang)。驅動(dong)(dong)裝(zhuang)置端(duan)的(de)輪帶一側裝(zhuang)有(you)擋輪，以(yi)限(xian)制筒(tong)(tong)(tong)體(ti)沿傾斜方(fang)向(xiang)的(de)竄(cuan)動(dong)(dong)。在(zai)(zai)(zai)烘干(gan)機設(she)備底部溫(wen)度(du)達400℃-800℃狀態下，物(wu)(wu)(wu)料(liao)(liao)(liao)由(you)提升機或者皮帶機從(cong)喂料(liao)(liao)(liao)口喂入烘干(gan)機筒(tong)(tong)(tong)體(ti)通(tong)過(guo)大齒(chi)圈在(zai)(zai)(zai)驅動(dong)(dong)裝(zhuang)置作用下回轉(zhuan)，由(you)于筒(tong)(tong)(tong)體(ti)具有(you)一定(ding)的(de)斜度(du)且連續不斷地(di)回轉(zhuan)，使(shi)(shi)得物(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)(zai)重力的(de)作用下從(cong)高端(duan)向(xiang)低端(duan)移(yi)(yi)動(dong)(dong)，在(zai)(zai)(zai)移(yi)(yi)動(dong)(dong)的(de)過(guo)程中逐漸與熱(re)(re)源產生(sheng)的(de)高溫(wen)氣(qi)(qi)體(ti)進行(xing)熱(re)(re)交換。烘干(gan)后(hou)的(de)物(wu)(wu)(wu)料(liao)(liao)(liao)從(cong)低端(duan)卸出，物(wu)(wu)(wu)料(liao)(liao)(liao)所含(han)水(shui)份蒸(zheng)發后(hou)被氣(qi)(qi)流帶走，物(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)(zai)烘干(gan)機內(nei)停留時間約(yue)為13-20min，可根(gen)據根(gen)據物(wu)(wu)(wu)料(liao)(liao)(liao)含(han)水(shui)率進行(xing)不同(tong)設(she)計。熱(re)(re)氣(qi)(qi)體(ti)由(you)熱(re)(re)風爐生(sheng)成，在(zai)(zai)(zai)烘干(gan)機內(nei)部物(wu)(wu)(wu)料(liao)(liao)(liao)相接觸，通(tong)過(guo)熱(re)(re)傳(chuan)導，對流，輻(fu)射等多種方(fang)式將熱(re)(re)量傳(chuan)遞(di)給物(wu)(wu)(wu)料(liao)(liao)(liao)，從(cong)而使(shi)(shi)物(wu)(wu)(wu)料(liao)(liao)(liao)溫(wen)度(du)不斷升高，水(shui)分不斷被蒸(zheng)發，符合水(shui)分要求的(de)物(wu)(wu)(wu)料(liao)(liao)(liao)從(cong)出料(liao)(liao)(liao)端(duan)出料(liao)(liao)(liao)罩(zhao)下部出口卸料(liao)(liao)(liao),帶著(zhu)水(shui)蒸(zheng)汽(qi)的(de)氣(qi)(qi)體(ti)經除塵器(qi)等環(huan)保(bao)設(she)施(shi)處理后(hou)達到環(huan)保(bao)要求排(pai)放標(biao)的(de)煙氣(qi)(qi)由(you)引風機抽出經煙囪排(pai)空(kong)。

適用范圍(wei)

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。