產(chan)品概況
回轉式三筒烘(hong)(hong)干機(ji)改進原單筒烘(hong)(hong)干機(ji)內部(bu)結構(gou)，增加入機(ji)前濕料(liao)的預烘(hong)(hong)干和延長濕料(liao)在機(ji)內烘(hong)(hong)干時(shi)間(jian)，再加上密封、保溫以及合(he)(he)理的配套措施，使烘(hong)(hong)干機(ji)生產能力與(yu)原單筒式烘(hong)(hong)干機(ji)相比，提高(gao)48-80%，單位容積蒸(zheng)發(fa)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(he)(he)理，操作簡單可行，廣泛應用于各個(ge)行業的礦渣、粘土、煤。
產品結構(gou)
三筒烘(hong)干機(ji)是通過對單(dan)筒烘(hong)干機(ji)的(de)(de)單(dan)筒體改為套疊在一起的(de)(de)三筒，以縮短烘(hong)干機(ji)體的(de)(de)外形尺寸(cun)。該機(ji)工作時(shi)，物料和熱氣流依次進入內至外筒體，在機(ji)體Z形往復折(zhe)流后，充(chong)分利用熱能烘(hong)干物料后再卸出。
烘干(gan)機筒(tong)(tong)體部分由(you)三個同軸水平(ping)放置的內、中、外筒(tong)(tong)套疊組成，這就(jiu)使筒(tong)(tong)體的截面得到充分的利用。其筒(tong)(tong)體外形總(zong)長度約為與之相當的單筒(tong)(tong)的30-35%。從(cong)而(er)大幅度地(di)減少(shao)占地(di)面積(ji)和(he)廠房(fang)建筑面積(ji)。
該機(ji)的支(zhi)承裝(zhuang)置，是(shi)在外筒(tong)上輪(lun)帶(dai)與托(tuo)輪(lun)支(zhi)承，由(you)電機(ji)直(zhi)接帶(dai)動托(tuo)輪(lun)。通過托(tuo)輪(lun)與輪(lun)帶(dai)摩(mo)擦，使筒(tong)體轉動。該機(ji)總(zong)體結(jie)構緊湊、合理、簡單，為便于(yu)磨損件的檢修(xiu)更換，在中間設計成軸(zhou)向剖分(fen)式(shi)，用螺(luo)栓固定連接。
工作原(yuan)理
物(wu)(wu)料(liao)由(you)供料(liao)裝置進(jin)(jin)(jin)入回轉滾(gun)筒(tong)(tong)(tong)的(de)內(nei)層(ceng)(ceng)(ceng),實現順(shun)流烘干(gan),物(wu)(wu)料(liao)在內(nei)層(ceng)(ceng)(ceng)的(de)抄板下不(bu)(bu)斷(duan)抄起、散(san)落呈螺旋行(xing)(xing)(xing)進(jin)(jin)(jin)式實現熱交(jiao)換，物(wu)(wu)料(liao)移動至內(nei)層(ceng)(ceng)(ceng)的(de)另一端(duan)進(jin)(jin)(jin)入中(zhong)層(ceng)(ceng)(ceng)，進(jin)(jin)(jin)行(xing)(xing)(xing)逆流烘干(gan)，物(wu)(wu)料(liao)在中(zhong)層(ceng)(ceng)(ceng)不(bu)(bu)斷(duan)地被反復揚進(jin)(jin)(jin)，呈進(jin)(jin)(jin)兩步退一步的(de)行(xing)(xing)(xing)進(jin)(jin)(jin)方式，物(wu)(wu)料(liao)在中(zhong)層(ceng)(ceng)(ceng)既(ji)充(chong)(chong)分吸收內(nei)層(ceng)(ceng)(ceng)滾(gun)筒(tong)(tong)(tong)散(san)發的(de)熱量，又吸收中(zhong)層(ceng)(ceng)(ceng)滾(gun)筒(tong)(tong)(tong)的(de)熱量，同時又延長了干(gan)燥(zao)時間，物(wu)(wu)料(liao)在此(ci)達到(dao)干(gan)燥(zao)狀態。物(wu)(wu)料(liao)行(xing)(xing)(xing)至中(zhong)層(ceng)(ceng)(ceng)另一端(duan)而(er)落入外層(ceng)(ceng)(ceng)，物(wu)(wu)料(liao)在外層(ceng)(ceng)(ceng)滾(gun)筒(tong)(tong)(tong)內(nei)呈矩形多回路方式行(xing)(xing)(xing)進(jin)(jin)(jin)，達到(dao)干(gan)燥(zao)效果(guo)的(de)物(wu)(wu)料(liao)在熱風作用下快速(su)行(xing)(xing)(xing)進(jin)(jin)(jin)排(pai)出滾(gun)筒(tong)(tong)(tong)，沒有達到(dao)干(gan)燥(zao)效果(guo)的(de)濕物(wu)(wu)料(liao)因(yin)自重而(er)不(bu)(bu)能快速(su)行(xing)(xing)(xing)進(jin)(jin)(jin)，物(wu)(wu)料(liao)在此(ci)矩形抄板內(nei)進(jin)(jin)(jin)行(xing)(xing)(xing)充(chong)(chong)分干(gan)燥(zao)，由(you)此(ci)完(wan)成(cheng)干(gan)燥(zao)目的(de)。
