產品概(gai)況(kuang)
回轉(zhuan)式(shi)三筒烘(hong)(hong)(hong)干(gan)(gan)機(ji)(ji)改(gai)進原單筒烘(hong)(hong)(hong)干(gan)(gan)機(ji)(ji)內(nei)部結構,增加(jia)入機(ji)(ji)前濕(shi)料(liao)的預烘(hong)(hong)(hong)干(gan)(gan)和延(yan)長濕(shi)料(liao)在(zai)機(ji)(ji)內(nei)烘(hong)(hong)(hong)干(gan)(gan)時(shi)間,再加(jia)上密(mi)封、保溫以及合理(li)的配套措施(shi),使烘(hong)(hong)(hong)干(gan)(gan)機(ji)(ji)生產(chan)能力與原單筒式(shi)烘(hong)(hong)(hong)干(gan)(gan)機(ji)(ji)相比,提高48-80%,單位(wei)容積蒸(zheng)發強度(du)可(ke)達120-180kg/m3,標準煤耗(hao)僅(jin)為6-8kg/t。其技(ji)術先(xian)進、運行(xing)參數合理(li),操作簡單可(ke)行(xing),廣泛應用于各(ge)個行(xing)業的礦(kuang)渣(zha)、粘土、煤。
產品結(jie)構
三筒(tong)(tong)烘干(gan)機(ji)是通過對單筒(tong)(tong)烘干(gan)機(ji)的(de)單筒(tong)(tong)體(ti)改為套疊在(zai)一起的(de)三筒(tong)(tong),以縮(suo)短烘干(gan)機(ji)體(ti)的(de)外形(xing)尺寸(cun)。該機(ji)工作時(shi),物料和熱(re)氣流依次進(jin)入內(nei)至外筒(tong)(tong)體(ti),在(zai)機(ji)體(ti)Z形(xing)往(wang)復(fu)折流后,充分利(li)用熱(re)能烘干(gan)物料后再卸出。
烘干(gan)機筒(tong)體部分由(you)三(san)個同(tong)軸(zhou)水平放置的(de)內、中、外(wai)筒(tong)套疊組(zu)成(cheng),這就使筒(tong)體的(de)截面得(de)到充分的(de)利用。其筒(tong)體外(wai)形總長度約為與(yu)之相(xiang)當的(de)單筒(tong)的(de)30-35%。從(cong)而大幅度地減(jian)少占地面積(ji)和廠房建(jian)筑面積(ji)。
該機(ji)的(de)(de)支承(cheng)裝置,是在外筒上輪(lun)帶(dai)與托輪(lun)支承(cheng),由電機(ji)直接帶(dai)動托輪(lun)。通過托輪(lun)與輪(lun)帶(dai)摩擦,使筒體轉動。該機(ji)總體結構(gou)緊湊、合理、簡單,為(wei)便(bian)于磨損件的(de)(de)檢修更(geng)換,在中間(jian)設計成軸向剖分式,用螺栓固定連接。
工(gong)作原理(li)
物(wu)(wu)(wu)料(liao)(liao)(liao)由(you)供(gong)料(liao)(liao)(liao)裝置(zhi)進(jin)入回轉滾(gun)筒(tong)的(de)(de)內(nei)(nei)(nei)層(ceng)(ceng),實現(xian)順流(liu)烘(hong)(hong)干,物(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)內(nei)(nei)(nei)層(ceng)(ceng)的(de)(de)抄(chao)板(ban)下(xia)不斷抄(chao)起、散落呈螺旋(xuan)行進(jin)式實現(xian)熱交(jiao)換(huan),物(wu)(wu)(wu)料(liao)(liao)(liao)移(yi)動至(zhi)內(nei)(nei)(nei)層(ceng)(ceng)的(de)(de)另(ling)一(yi)(yi)端進(jin)入中(zhong)層(ceng)(ceng),進(jin)行逆流(liu)烘(hong)(hong)干,物(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)中(zhong)層(ceng)(ceng)不斷地被反復揚(yang)進(jin),呈進(jin)兩步退一(yi)(yi)步的(de)(de)行進(jin)方式,物(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)中(zhong)層(ceng)(ceng)既充分(fen)吸收(shou)內(nei)(nei)(nei)層(ceng)(ceng)滾(gun)筒(tong)散發的(de)(de)熱量(liang),又(you)(you)吸收(shou)中(zhong)層(ceng)(ceng)滾(gun)筒(tong)的(de)(de)熱量(liang),同(tong)時又(you)(you)延長了干燥時間,物(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)此達到(dao)干燥狀(zhuang)態。物(wu)(wu)(wu)料(liao)(liao)(liao)行至(zhi)中(zhong)層(ceng)(ceng)另(ling)一(yi)(yi)端而(er)落入外層(ceng)(ceng),物(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)外層(ceng)(ceng)滾(gun)筒(tong)內(nei)(nei)(nei)呈矩形(xing)多回路方式行進(jin),達到(dao)干燥效果的(de)(de)物(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)熱風作用下(xia)快(kuai)速行進(jin)排出滾(gun)筒(tong),沒有達到(dao)干燥效果的(de)(de)濕物(wu)(wu)(wu)料(liao)(liao)(liao)因(yin)自(zi)重而(er)不能(neng)快(kuai)速行進(jin),物(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)此矩形(xing)抄(chao)板(ban)內(nei)(nei)(nei)進(jin)行充分(fen)干燥,由(you)此完成干燥目的(de)(de)。