產品概況
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(tong)式烘(hong)干(gan)機(ji)(ji)是通過對(dui)單筒(tong)烘(hong)干(gan)機(ji)(ji)的(de)單筒(tong)體(ti)改為套疊在一起的(de)三筒(tong),以(yi)縮短烘(hong)干(gan)機(ji)(ji)體(ti)的(de)外形尺寸。該機(ji)(ji)工(gong)作時,物料(liao)和熱氣流依次進入內至外筒(tong)體(ti),在機(ji)(ji)體(ti)Z形往復折流后,充分(fen)利用熱能(neng)烘(hong)干(gan)物料(liao)后再卸(xie)出。
烘干機筒(tong)(tong)體部(bu)分由三(san)個同軸水平放置的內(nei)、中、外筒(tong)(tong)套疊組(zu)成,這就使筒(tong)(tong)體的截面得到充分的利用(yong)。其筒(tong)(tong)體外形總(zong)長度約為與(yu)之(zhi)相當(dang)的單(dan)筒(tong)(tong)的30-35%。從(cong)而(er)大幅度地減少占地面積和(he)廠房建筑面積。
該機的支承裝置,是在外筒上(shang)輪(lun)帶與托輪(lun)支承,由電機直接帶動托輪(lun)。通過托輪(lun)與輪(lun)帶摩擦,使筒體轉動。該機總體結構緊湊、合(he)理、簡單,為(wei)便于磨損件的檢(jian)修更換,在中間設計成軸向(xiang)剖(pou)分式,用(yong)螺栓固定連(lian)接。
工(gong)作原理
物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)由供(gong)料(liao)(liao)(liao)裝(zhuang)置進入回轉滾筒的內(nei)層(ceng)(ceng)(ceng)(ceng),實(shi)現(xian)順(shun)流(liu)烘干,物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)內(nei)層(ceng)(ceng)(ceng)(ceng)的抄板下不斷(duan)抄起、散(san)落呈螺旋(xuan)行(xing)進式實(shi)現(xian)熱交(jiao)換,物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)移動(dong)至內(nei)層(ceng)(ceng)(ceng)(ceng)的另一(yi)端(duan)進入中(zhong)(zhong)層(ceng)(ceng)(ceng)(ceng),進行(xing)逆流(liu)烘干,物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)中(zhong)(zhong)層(ceng)(ceng)(ceng)(ceng)不斷(duan)地被(bei)反復(fu)揚進,呈進兩步退一(yi)步的行(xing)進方式,物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)中(zhong)(zhong)層(ceng)(ceng)(ceng)(ceng)既充分吸收(shou)內(nei)層(ceng)(ceng)(ceng)(ceng)滾筒散(san)發的熱量(liang),又吸收(shou)中(zhong)(zhong)層(ceng)(ceng)(ceng)(ceng)滾筒的熱量(liang),同時又延(yan)長了干燥(zao)時間,物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)此達(da)(da)到(dao)干燥(zao)狀(zhuang)態。物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)行(xing)至中(zhong)(zhong)層(ceng)(ceng)(ceng)(ceng)另一(yi)端(duan)而(er)落入外層(ceng)(ceng)(ceng)(ceng),物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)外層(ceng)(ceng)(ceng)(ceng)滾筒內(nei)呈矩形多回路方式行(xing)進,達(da)(da)到(dao)干燥(zao)效果的物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)熱風作用下快速行(xing)進排出滾筒,沒有(you)達(da)(da)到(dao)干燥(zao)效果的濕(shi)物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)因(yin)自(zi)重而(er)不能快速行(xing)進,物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)此矩形抄板內(nei)進行(xing)充分干燥(zao),由此完成(cheng)干燥(zao)目的。