產品概(gai)況
回轉式三筒烘(hong)干機(ji)改進原單筒烘(hong)干機(ji)內部(bu)結構,增加入機(ji)前濕料的(de)預烘(hong)干和(he)延長濕料在機(ji)內烘(hong)干時間,再加上密封、保溫以及合理的(de)配套措(cuo)施(shi),使烘(hong)干機(ji)生產能力(li)與原單筒式烘(hong)干機(ji)相比,提高48-80%,單位容積蒸發(fa)強(qiang)度(du)可達120-180kg/m3,標準煤(mei)耗僅為(wei)6-8kg/t。其技術(shu)先進、運行參數(shu)合理,操作(zuo)簡單可行,廣泛應用(yong)于各(ge)個行業的(de)礦(kuang)渣(zha)、粘土、煤(mei)。
產品結構
三(san)筒(tong)(tong)烘干(gan)(gan)(gan)機(ji)是通過(guo)對(dui)單筒(tong)(tong)烘干(gan)(gan)(gan)機(ji)的(de)單筒(tong)(tong)體(ti)改(gai)為套疊在一(yi)起的(de)三(san)筒(tong)(tong),以縮短烘干(gan)(gan)(gan)機(ji)體(ti)的(de)外(wai)形(xing)尺寸。該機(ji)工作時(shi),物料(liao)和(he)熱氣流(liu)依次進入內至外(wai)筒(tong)(tong)體(ti),在機(ji)體(ti)Z形(xing)往(wang)復折流(liu)后,充分(fen)利用熱能烘干(gan)(gan)(gan)物料(liao)后再卸出。
烘干機(ji)筒體部分由三個同軸水平放置的內、中、外(wai)筒套疊組成,這就(jiu)使筒體的截面得到(dao)充(chong)分的利用。其筒體外(wai)形總長度約為與(yu)之相(xiang)當的單(dan)筒的30-35%。從而(er)大幅度地(di)減少占地(di)面積和廠房建筑面積。
該機的支承裝置,是在外筒上(shang)輪帶(dai)與托(tuo)輪支承,由電(dian)機直接帶(dai)動托(tuo)輪。通過(guo)托(tuo)輪與輪帶(dai)摩擦,使筒體轉動。該機總體結構緊(jin)湊(cou)、合(he)理、簡單,為便于磨損(sun)件的檢修更換(huan),在中間設計成軸向剖分式,用螺栓固定連接。
工作原理
物(wu)(wu)(wu)料(liao)由(you)(you)供料(liao)裝(zhuang)置進(jin)入回轉滾筒(tong)的內(nei)層(ceng)(ceng)(ceng),實(shi)現(xian)順流(liu)烘(hong)干(gan),物(wu)(wu)(wu)料(liao)在(zai)內(nei)層(ceng)(ceng)(ceng)的抄板(ban)(ban)下不斷抄起、散落呈(cheng)(cheng)螺旋(xuan)行(xing)(xing)進(jin)式實(shi)現(xian)熱交換,物(wu)(wu)(wu)料(liao)移動至內(nei)層(ceng)(ceng)(ceng)的另(ling)一端進(jin)入中(zhong)(zhong)層(ceng)(ceng)(ceng),進(jin)行(xing)(xing)逆(ni)流(liu)烘(hong)干(gan),物(wu)(wu)(wu)料(liao)在(zai)中(zhong)(zhong)層(ceng)(ceng)(ceng)不斷地被反復(fu)揚(yang)進(jin),呈(cheng)(cheng)進(jin)兩(liang)步退一步的行(xing)(xing)進(jin)方式,物(wu)(wu)(wu)料(liao)在(zai)中(zhong)(zhong)層(ceng)(ceng)(ceng)既充(chong)分吸收(shou)內(nei)層(ceng)(ceng)(ceng)滾筒(tong)散發的熱量(liang),又吸收(shou)中(zhong)(zhong)層(ceng)(ceng)(ceng)滾筒(tong)的熱量(liang),同時又延長了(le)干(gan)燥(zao)時間,物(wu)(wu)(wu)料(liao)在(zai)此達到(dao)干(gan)燥(zao)狀態。物(wu)(wu)(wu)料(liao)行(xing)(xing)至中(zhong)(zhong)層(ceng)(ceng)(ceng)另(ling)一端而落入外層(ceng)(ceng)(ceng),物(wu)(wu)(wu)料(liao)在(zai)外層(ceng)(ceng)(ceng)滾筒(tong)內(nei)呈(cheng)(cheng)矩形(xing)多回路方式行(xing)(xing)進(jin),達到(dao)干(gan)燥(zao)效果的物(wu)(wu)(wu)料(liao)在(zai)熱風作(zuo)用(yong)下快速(su)(su)行(xing)(xing)進(jin)排出(chu)滾筒(tong),沒有達到(dao)干(gan)燥(zao)效果的濕物(wu)(wu)(wu)料(liao)因(yin)自重而不能快速(su)(su)行(xing)(xing)進(jin),物(wu)(wu)(wu)料(liao)在(zai)此矩形(xing)抄板(ban)(ban)內(nei)進(jin)行(xing)(xing)充(chong)分干(gan)燥(zao),由(you)(you)此完成干(gan)燥(zao)目的。