產品概況(kuang)
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(chan)品結構
三筒(tong)(tong)式烘(hong)干(gan)機是(shi)通過對單筒(tong)(tong)烘(hong)干(gan)機的單筒(tong)(tong)體(ti)改為套疊(die)在一(yi)起的三筒(tong)(tong),以縮短(duan)烘(hong)干(gan)機體(ti)的外形尺寸。該(gai)機工作(zuo)時(shi),物料(liao)(liao)和熱氣(qi)流依次進入內至外筒(tong)(tong)體(ti),在機體(ti)Z形往復折流后,充(chong)分利用熱能烘(hong)干(gan)物料(liao)(liao)后再卸出。
烘干機筒體部分由三個同軸水(shui)平放置的(de)(de)(de)內、中、外筒套疊組(zu)成,這就使筒體的(de)(de)(de)截面得(de)到充分的(de)(de)(de)利用。其筒體外形總長度約為與之相(xiang)當的(de)(de)(de)單(dan)筒的(de)(de)(de)30-35%。從(cong)而大幅(fu)度地減少占(zhan)地面積和廠房(fang)建筑面積。
該機的支(zhi)承(cheng)裝置,是在外(wai)筒上輪(lun)(lun)帶與(yu)托(tuo)(tuo)輪(lun)(lun)支(zhi)承(cheng),由電機直接帶動(dong)托(tuo)(tuo)輪(lun)(lun)。通過托(tuo)(tuo)輪(lun)(lun)與(yu)輪(lun)(lun)帶摩擦,使筒體轉(zhuan)動(dong)。該機總體結構緊湊、合理、簡(jian)單,為便于磨(mo)損件的檢修更換,在中間設計成軸向剖分式,用螺栓固定連接。
工作(zuo)原(yuan)理(li)
物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)由供料(liao)(liao)(liao)裝置進(jin)(jin)入回轉滾(gun)(gun)(gun)筒的(de)內(nei)層(ceng)(ceng),實(shi)(shi)現(xian)順流(liu)烘干,物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)(zai)內(nei)層(ceng)(ceng)的(de)抄板(ban)下不斷(duan)抄起、散落呈(cheng)(cheng)螺(luo)旋行(xing)(xing)(xing)(xing)(xing)進(jin)(jin)式實(shi)(shi)現(xian)熱(re)(re)交換(huan),物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)移動至(zhi)內(nei)層(ceng)(ceng)的(de)另一(yi)端進(jin)(jin)入中層(ceng)(ceng),進(jin)(jin)行(xing)(xing)(xing)(xing)(xing)逆流(liu)烘干,物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)(zai)中層(ceng)(ceng)不斷(duan)地被反復揚進(jin)(jin),呈(cheng)(cheng)進(jin)(jin)兩(liang)步(bu)退一(yi)步(bu)的(de)行(xing)(xing)(xing)(xing)(xing)進(jin)(jin)方(fang)式,物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)(zai)中層(ceng)(ceng)既充分(fen)吸(xi)收(shou)內(nei)層(ceng)(ceng)滾(gun)(gun)(gun)筒散發的(de)熱(re)(re)量,又吸(xi)收(shou)中層(ceng)(ceng)滾(gun)(gun)(gun)筒的(de)熱(re)(re)量,同時又延長了干燥時間,物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)(zai)此(ci)達到干燥狀態。物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)行(xing)(xing)(xing)(xing)(xing)至(zhi)中層(ceng)(ceng)另一(yi)端而落入外(wai)層(ceng)(ceng),物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)(zai)外(wai)層(ceng)(ceng)滾(gun)(gun)(gun)筒內(nei)呈(cheng)(cheng)矩(ju)形多回路方(fang)式行(xing)(xing)(xing)(xing)(xing)進(jin)(jin),達到干燥效果的(de)物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)(zai)熱(re)(re)風作用下快速行(xing)(xing)(xing)(xing)(xing)進(jin)(jin)排出滾(gun)(gun)(gun)筒,沒有達到干燥效果的(de)濕物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)因自重而不能快速行(xing)(xing)(xing)(xing)(xing)進(jin)(jin),物(wu)(wu)(wu)(wu)料(liao)(liao)(liao)在(zai)(zai)(zai)此(ci)矩(ju)形抄板(ban)內(nei)進(jin)(jin)行(xing)(xing)(xing)(xing)(xing)充分(fen)干燥,由此(ci)完成干燥目的(de)。