產品概況
回轉式三筒(tong)烘(hong)干機改進原單(dan)(dan)筒(tong)烘(hong)干機內部結(jie)構,增(zeng)加入機前(qian)濕(shi)料(liao)的(de)預烘(hong)干和(he)延長濕(shi)料(liao)在機內烘(hong)干時間(jian),再加上密封、保溫以及合(he)理的(de)配套措施,使烘(hong)干機生產能力(li)與原單(dan)(dan)筒(tong)式烘(hong)干機相比,提(ti)高48-80%,單(dan)(dan)位容積蒸發強(qiang)度可(ke)達120-180kg/m3,標準煤耗僅為6-8kg/t。其技術先進、運行(xing)參數合(he)理,操作簡(jian)單(dan)(dan)可(ke)行(xing),廣泛應用于各個行(xing)業的(de)礦渣、粘土、煤。
產品(pin)結(jie)構
三筒烘干機是通過對單(dan)筒烘干機的單(dan)筒體(ti)改(gai)為套疊(die)在(zai)一起的三筒,以縮短(duan)烘干機體(ti)的外形尺寸。該(gai)機工(gong)作時,物料(liao)和熱氣(qi)流依(yi)次進入內至外筒體(ti),在(zai)機體(ti)Z形往復(fu)折(zhe)流后,充分(fen)利用熱能烘干物料(liao)后再卸出。
烘干(gan)機筒(tong)體部分由三(san)個同軸水平放置(zhi)的內、中、外筒(tong)套疊(die)組成,這就使筒(tong)體的截(jie)面得(de)到(dao)充分的利用(yong)。其筒(tong)體外形總長(chang)度(du)約為與(yu)之相當(dang)的單筒(tong)的30-35%。從(cong)而大幅(fu)度(du)地(di)減少占地(di)面積(ji)和(he)廠房(fang)建筑面積(ji)。
該機的支(zhi)承裝置,是在(zai)外筒(tong)上輪帶(dai)與(yu)托(tuo)(tuo)輪支(zhi)承,由電機直接(jie)帶(dai)動托(tuo)(tuo)輪。通過托(tuo)(tuo)輪與(yu)輪帶(dai)摩擦,使筒(tong)體(ti)轉動。該機總體(ti)結構(gou)緊(jin)湊、合理、簡單,為(wei)便于磨損(sun)件(jian)的檢修更換,在(zai)中間(jian)設計成軸向剖分式,用螺栓固定連接(jie)。
工(gong)作原理
物(wu)(wu)(wu)料(liao)(liao)(liao)由供料(liao)(liao)(liao)裝(zhuang)置進(jin)入回轉滾(gun)(gun)筒(tong)(tong)的內層(ceng),實現順流烘干(gan),物(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)(zai)內層(ceng)的抄板(ban)下(xia)不斷抄起、散(san)落呈(cheng)螺旋行(xing)進(jin)式(shi)實現熱交(jiao)換(huan),物(wu)(wu)(wu)料(liao)(liao)(liao)移動(dong)至(zhi)內層(ceng)的另(ling)一(yi)(yi)端進(jin)入中(zhong)層(ceng),進(jin)行(xing)逆(ni)流烘干(gan),物(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)(zai)中(zhong)層(ceng)不斷地被反復揚進(jin),呈(cheng)進(jin)兩步(bu)(bu)退(tui)一(yi)(yi)步(bu)(bu)的行(xing)進(jin)方式(shi),物(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)(zai)中(zhong)層(ceng)既(ji)充分(fen)吸(xi)收(shou)內層(ceng)滾(gun)(gun)筒(tong)(tong)散(san)發的熱量,又(you)(you)吸(xi)收(shou)中(zhong)層(ceng)滾(gun)(gun)筒(tong)(tong)的熱量,同(tong)時又(you)(you)延長了(le)干(gan)燥(zao)(zao)(zao)時間,物(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)(zai)此達到干(gan)燥(zao)(zao)(zao)狀(zhuang)態。物(wu)(wu)(wu)料(liao)(liao)(liao)行(xing)至(zhi)中(zhong)層(ceng)另(ling)一(yi)(yi)端而(er)落入外層(ceng),物(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)(zai)外層(ceng)滾(gun)(gun)筒(tong)(tong)內呈(cheng)矩形多回路方式(shi)行(xing)進(jin),達到干(gan)燥(zao)(zao)(zao)效果的物(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)(zai)熱風作用下(xia)快(kuai)速行(xing)進(jin)排(pai)出(chu)滾(gun)(gun)筒(tong)(tong),沒有達到干(gan)燥(zao)(zao)(zao)效果的濕物(wu)(wu)(wu)料(liao)(liao)(liao)因(yin)自(zi)重而(er)不能快(kuai)速行(xing)進(jin),物(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)(zai)此矩形抄板(ban)內進(jin)行(xing)充分(fen)干(gan)燥(zao)(zao)(zao),由此完成(cheng)干(gan)燥(zao)(zao)(zao)目(mu)的。