產(chan)品概況
回轉式三(san)筒烘干機(ji)改進原單筒烘干機(ji)內部結構,增加入(ru)機(ji)前濕(shi)料(liao)的預烘干和延長濕(shi)料(liao)在機(ji)內烘干時間,再(zai)加上密封(feng)、保溫以及合理的配(pei)套措(cuo)施,使烘干機(ji)生產能(neng)力與原單筒式烘干機(ji)相比,提高48-80%,單位容積蒸發強度(du)可達120-180kg/m3,標準煤耗僅為(wei)6-8kg/t。其技術先進、運行參數合理,操(cao)作簡單可行,廣泛應用于(yu)各個行業的礦(kuang)渣(zha)、粘(zhan)土、煤。
產品結構
三(san)筒(tong)(tong)烘干機(ji)是通(tong)過對(dui)單(dan)筒(tong)(tong)烘干機(ji)的單(dan)筒(tong)(tong)體(ti)改(gai)為套(tao)疊在一(yi)起的三(san)筒(tong)(tong),以縮短烘干機(ji)體(ti)的外形(xing)尺寸。該機(ji)工作(zuo)時(shi),物料和熱(re)氣流依次(ci)進入內(nei)至外筒(tong)(tong)體(ti),在機(ji)體(ti)Z形(xing)往復折流后,充分利用熱(re)能烘干物料后再卸出。
烘干機筒(tong)(tong)體(ti)(ti)部分由三(san)個同軸水(shui)平放置的(de)(de)(de)內、中、外筒(tong)(tong)套(tao)疊組成(cheng),這就使筒(tong)(tong)體(ti)(ti)的(de)(de)(de)截面(mian)得(de)到充(chong)分的(de)(de)(de)利用。其筒(tong)(tong)體(ti)(ti)外形總(zong)長度約為與之(zhi)相當(dang)的(de)(de)(de)單(dan)筒(tong)(tong)的(de)(de)(de)30-35%。從而大幅度地(di)(di)減少占地(di)(di)面(mian)積和(he)廠房建筑面(mian)積。
該機(ji)的支承(cheng)裝置,是在(zai)外筒(tong)上輪(lun)帶與托(tuo)輪(lun)支承(cheng),由電機(ji)直(zhi)接(jie)(jie)帶動托(tuo)輪(lun)。通過托(tuo)輪(lun)與輪(lun)帶摩擦,使筒(tong)體(ti)轉(zhuan)動。該機(ji)總體(ti)結構緊湊(cou)、合理(li)、簡單(dan),為(wei)便于(yu)磨損件的檢修更換,在(zai)中間(jian)設計成(cheng)軸向(xiang)剖分式,用螺栓固定連(lian)接(jie)(jie)。
工作原理
物(wu)(wu)料(liao)(liao)由供料(liao)(liao)裝置進(jin)(jin)入(ru)回轉滾(gun)筒的(de)內層(ceng)(ceng),實現順流(liu)烘干(gan),物(wu)(wu)料(liao)(liao)在(zai)(zai)內層(ceng)(ceng)的(de)抄板下不斷抄起(qi)、散(san)落呈螺旋行(xing)(xing)進(jin)(jin)式實現熱交換,物(wu)(wu)料(liao)(liao)移動至內層(ceng)(ceng)的(de)另(ling)一端進(jin)(jin)入(ru)中(zhong)層(ceng)(ceng),進(jin)(jin)行(xing)(xing)逆(ni)流(liu)烘干(gan),物(wu)(wu)料(liao)(liao)在(zai)(zai)中(zhong)層(ceng)(ceng)不斷地(di)被反復揚(yang)進(jin)(jin),呈進(jin)(jin)兩步退(tui)一步的(de)行(xing)(xing)進(jin)(jin)方(fang)式,物(wu)(wu)料(liao)(liao)在(zai)(zai)中(zhong)層(ceng)(ceng)既(ji)充(chong)分吸(xi)收內層(ceng)(ceng)滾(gun)筒散(san)發的(de)熱量,又吸(xi)收中(zhong)層(ceng)(ceng)滾(gun)筒的(de)熱量,同時又延長了(le)干(gan)燥時間(jian),物(wu)(wu)料(liao)(liao)在(zai)(zai)此達(da)到干(gan)燥狀態。物(wu)(wu)料(liao)(liao)行(xing)(xing)至中(zhong)層(ceng)(ceng)另(ling)一端而落入(ru)外(wai)層(ceng)(ceng),物(wu)(wu)料(liao)(liao)在(zai)(zai)外(wai)層(ceng)(ceng)滾(gun)筒內呈矩形多回路(lu)方(fang)式行(xing)(xing)進(jin)(jin),達(da)到干(gan)燥效果的(de)物(wu)(wu)料(liao)(liao)在(zai)(zai)熱風(feng)作(zuo)用下快(kuai)速行(xing)(xing)進(jin)(jin)排出滾(gun)筒,沒有達(da)到干(gan)燥效果的(de)濕物(wu)(wu)料(liao)(liao)因自(zi)重(zhong)而不能快(kuai)速行(xing)(xing)進(jin)(jin),物(wu)(wu)料(liao)(liao)在(zai)(zai)此矩形抄板內進(jin)(jin)行(xing)(xing)充(chong)分干(gan)燥,由此完成干(gan)燥目(mu)的(de)。