產品概況
回轉式三筒烘干機改進原單筒烘干機內部結構,增加入機前濕料的預烘干和延長濕料在機內烘干時間,再加上密封、保溫以及合理的配套措施,使烘干機生產能力與原單筒式烘干機相比,提高48-80%,單位容積蒸發強度可達120-180kg/m3,標準煤耗僅為6-8kg/t。其技術先進、運行參數合理,操作簡單可行,廣泛應用于各個行業的礦渣、粘土、煤。
產(chan)品結構
三筒(tong)(tong)式(shi)烘(hong)(hong)干機(ji)(ji)是通過(guo)對(dui)單筒(tong)(tong)烘(hong)(hong)干機(ji)(ji)的(de)單筒(tong)(tong)體(ti)改為套疊在一起的(de)三筒(tong)(tong),以縮短烘(hong)(hong)干機(ji)(ji)體(ti)的(de)外形(xing)尺寸。該機(ji)(ji)工作(zuo)時,物料和(he)熱氣流依次進入(ru)內至(zhi)外筒(tong)(tong)體(ti),在機(ji)(ji)體(ti)Z形(xing)往復折流后,充分利用(yong)熱能烘(hong)(hong)干物料后再卸出。
烘干機(ji)筒(tong)(tong)體部分(fen)由(you)三個同(tong)軸水平放置的(de)(de)(de)內、中(zhong)、外(wai)筒(tong)(tong)套(tao)疊組(zu)成,這就使筒(tong)(tong)體的(de)(de)(de)截(jie)面得到(dao)充分(fen)的(de)(de)(de)利(li)用。其筒(tong)(tong)體外(wai)形總長度約為與之(zhi)相當的(de)(de)(de)單(dan)筒(tong)(tong)的(de)(de)(de)30-35%。從(cong)而大幅度地減少占地面積和廠房建筑面積。
該機的(de)(de)支承裝置,是在(zai)外筒上輪(lun)帶與托輪(lun)支承,由電機直接帶動(dong)托輪(lun)。通過托輪(lun)與輪(lun)帶摩擦,使筒體(ti)(ti)轉動(dong)。該機總體(ti)(ti)結(jie)構緊湊、合理、簡(jian)單,為便于磨損件的(de)(de)檢修更換,在(zai)中(zhong)間設計成(cheng)軸向剖分式,用(yong)螺栓固定連接。
工作原理
物(wu)料(liao)由供料(liao)裝置進(jin)入回(hui)轉(zhuan)滾(gun)筒(tong)的(de)內(nei)(nei)(nei)(nei)層(ceng)(ceng),實現(xian)順流烘(hong)干(gan)(gan),物(wu)料(liao)在(zai)內(nei)(nei)(nei)(nei)層(ceng)(ceng)的(de)抄板下不(bu)(bu)斷抄起、散落呈螺旋行進(jin)式實現(xian)熱(re)交(jiao)換,物(wu)料(liao)移動至內(nei)(nei)(nei)(nei)層(ceng)(ceng)的(de)另一(yi)端(duan)進(jin)入中(zhong)(zhong)層(ceng)(ceng),進(jin)行逆流烘(hong)干(gan)(gan),物(wu)料(liao)在(zai)中(zhong)(zhong)層(ceng)(ceng)不(bu)(bu)斷地(di)被反(fan)復(fu)揚進(jin),呈進(jin)兩步退一(yi)步的(de)行進(jin)方(fang)(fang)式,物(wu)料(liao)在(zai)中(zhong)(zhong)層(ceng)(ceng)既充(chong)分(fen)吸收(shou)內(nei)(nei)(nei)(nei)層(ceng)(ceng)滾(gun)筒(tong)散發的(de)熱(re)量(liang),又吸收(shou)中(zhong)(zhong)層(ceng)(ceng)滾(gun)筒(tong)的(de)熱(re)量(liang),同時(shi)又延長了干(gan)(gan)燥時(shi)間,物(wu)料(liao)在(zai)此達到(dao)干(gan)(gan)燥狀態。物(wu)料(liao)行至中(zhong)(zhong)層(ceng)(ceng)另一(yi)端(duan)而(er)落入外層(ceng)(ceng),物(wu)料(liao)在(zai)外層(ceng)(ceng)滾(gun)筒(tong)內(nei)(nei)(nei)(nei)呈矩形多回(hui)路方(fang)(fang)式行進(jin),達到(dao)干(gan)(gan)燥效果的(de)物(wu)料(liao)在(zai)熱(re)風作用(yong)下快速行進(jin)排出滾(gun)筒(tong),沒有達到(dao)干(gan)(gan)燥效果的(de)濕物(wu)料(liao)因自重(zhong)而(er)不(bu)(bu)能快速行進(jin),物(wu)料(liao)在(zai)此矩形抄板內(nei)(nei)(nei)(nei)進(jin)行充(chong)分(fen)干(gan)(gan)燥,由此完成干(gan)(gan)燥目的(de)。