產(chan)品概(gai)況(kuang)
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。
產品結(jie)構
三筒式(shi)烘(hong)干(gan)(gan)機(ji)是通過對單(dan)筒烘(hong)干(gan)(gan)機(ji)的單(dan)筒體改(gai)為套疊在一起的三筒,以縮短烘(hong)干(gan)(gan)機(ji)體的外形尺寸。該機(ji)工作(zuo)時,物料和熱(re)氣流(liu)依次進入內至外筒體,在機(ji)體Z形往復(fu)折流(liu)后,充(chong)分利用熱(re)能烘(hong)干(gan)(gan)物料后再卸出。
烘干機筒(tong)體(ti)部分由三(san)個(ge)同軸水平放(fang)置的內、中、外筒(tong)套(tao)疊組(zu)成,這就使(shi)筒(tong)體(ti)的截面(mian)得到充(chong)分的利用。其筒(tong)體(ti)外形總長度約為與之相當的單筒(tong)的30-35%。從而(er)大(da)幅(fu)度地(di)(di)減少占地(di)(di)面(mian)積和廠房建筑面(mian)積。
該機的(de)(de)支承(cheng)裝置,是(shi)在外(wai)筒(tong)上(shang)輪(lun)帶(dai)與(yu)托輪(lun)支承(cheng),由電機直(zhi)接帶(dai)動托輪(lun)。通過托輪(lun)與(yu)輪(lun)帶(dai)摩擦,使筒(tong)體(ti)轉(zhuan)動。該機總(zong)體(ti)結構緊湊、合(he)理(li)、簡單,為便于磨損件的(de)(de)檢修(xiu)更換,在中間設計(ji)成軸向剖分式,用螺(luo)栓固定連接。
工(gong)作原(yuan)理
物(wu)(wu)(wu)料(liao)由供料(liao)裝(zhuang)置進入(ru)回(hui)轉滾筒(tong)(tong)的(de)(de)(de)內層(ceng)(ceng)(ceng)(ceng)(ceng),實現順流烘干(gan),物(wu)(wu)(wu)料(liao)在(zai)(zai)內層(ceng)(ceng)(ceng)(ceng)(ceng)的(de)(de)(de)抄板(ban)(ban)下不(bu)斷抄起、散落呈螺旋(xuan)行(xing)進式(shi)實現熱(re)交換,物(wu)(wu)(wu)料(liao)移(yi)動至(zhi)內層(ceng)(ceng)(ceng)(ceng)(ceng)的(de)(de)(de)另一端進入(ru)中層(ceng)(ceng)(ceng)(ceng)(ceng),進行(xing)逆流烘干(gan),物(wu)(wu)(wu)料(liao)在(zai)(zai)中層(ceng)(ceng)(ceng)(ceng)(ceng)不(bu)斷地被反復揚進,呈進兩步退一步的(de)(de)(de)行(xing)進方式(shi),物(wu)(wu)(wu)料(liao)在(zai)(zai)中層(ceng)(ceng)(ceng)(ceng)(ceng)既(ji)充(chong)分吸收內層(ceng)(ceng)(ceng)(ceng)(ceng)滾筒(tong)(tong)散發的(de)(de)(de)熱(re)量,又吸收中層(ceng)(ceng)(ceng)(ceng)(ceng)滾筒(tong)(tong)的(de)(de)(de)熱(re)量,同時又延長了干(gan)燥時間,物(wu)(wu)(wu)料(liao)在(zai)(zai)此達(da)到干(gan)燥狀態。物(wu)(wu)(wu)料(liao)行(xing)至(zhi)中層(ceng)(ceng)(ceng)(ceng)(ceng)另一端而落入(ru)外層(ceng)(ceng)(ceng)(ceng)(ceng),物(wu)(wu)(wu)料(liao)在(zai)(zai)外層(ceng)(ceng)(ceng)(ceng)(ceng)滾筒(tong)(tong)內呈矩(ju)形(xing)多(duo)回(hui)路方式(shi)行(xing)進,達(da)到干(gan)燥效果(guo)的(de)(de)(de)物(wu)(wu)(wu)料(liao)在(zai)(zai)熱(re)風(feng)作用下快速行(xing)進排出滾筒(tong)(tong),沒有達(da)到干(gan)燥效果(guo)的(de)(de)(de)濕物(wu)(wu)(wu)料(liao)因自重而不(bu)能快速行(xing)進,物(wu)(wu)(wu)料(liao)在(zai)(zai)此矩(ju)形(xing)抄板(ban)(ban)內進行(xing)充(chong)分干(gan)燥,由此完成(cheng)干(gan)燥目的(de)(de)(de)。