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
三筒式(shi)烘干(gan)(gan)(gan)機(ji)是通過對單(dan)筒烘干(gan)(gan)(gan)機(ji)的單(dan)筒體(ti)改為套疊在一(yi)起的三筒,以縮短烘干(gan)(gan)(gan)機(ji)體(ti)的外形(xing)尺(chi)寸。該機(ji)工作時,物(wu)料(liao)和熱氣流依次進(jin)入內至外筒體(ti),在機(ji)體(ti)Z形(xing)往復折流后(hou),充分利用(yong)熱能烘干(gan)(gan)(gan)物(wu)料(liao)后(hou)再卸出(chu)。
烘干機筒(tong)體(ti)(ti)部分由三個同軸(zhou)水(shui)平放(fang)置的內、中、外筒(tong)套疊組成,這就使筒(tong)體(ti)(ti)的截面得到充分的利用。其筒(tong)體(ti)(ti)外形(xing)總長度約為(wei)與之相當的單筒(tong)的30-35%。從而大幅(fu)度地減少占地面積和廠(chang)房(fang)建筑面積。
該(gai)機的支承裝(zhuang)置,是在(zai)外筒(tong)上輪帶(dai)與托輪支承,由電機直接帶(dai)動(dong)(dong)托輪。通過托輪與輪帶(dai)摩(mo)擦,使筒(tong)體(ti)(ti)轉動(dong)(dong)。該(gai)機總體(ti)(ti)結構緊湊、合理(li)、簡(jian)單,為便于(yu)磨損件的檢(jian)修更換,在(zai)中間設計成(cheng)軸向(xiang)剖分式,用(yong)螺栓固定連接。
工(gong)作原(yuan)理
物(wu)(wu)料(liao)(liao)(liao)由供料(liao)(liao)(liao)裝置進(jin)(jin)入回轉(zhuan)滾(gun)(gun)筒(tong)的內(nei)(nei)層(ceng),實現順流烘(hong)干(gan),物(wu)(wu)料(liao)(liao)(liao)在(zai)內(nei)(nei)層(ceng)的抄板(ban)(ban)下不(bu)斷(duan)抄起(qi)、散落呈螺旋行(xing)(xing)進(jin)(jin)式實現熱交換,物(wu)(wu)料(liao)(liao)(liao)移動至內(nei)(nei)層(ceng)的另一端(duan)進(jin)(jin)入中(zhong)層(ceng),進(jin)(jin)行(xing)(xing)逆流烘(hong)干(gan),物(wu)(wu)料(liao)(liao)(liao)在(zai)中(zhong)層(ceng)不(bu)斷(duan)地被反復揚進(jin)(jin),呈進(jin)(jin)兩步退(tui)一步的行(xing)(xing)進(jin)(jin)方式,物(wu)(wu)料(liao)(liao)(liao)在(zai)中(zhong)層(ceng)既充(chong)分吸收內(nei)(nei)層(ceng)滾(gun)(gun)筒(tong)散發的熱量(liang),又(you)吸收中(zhong)層(ceng)滾(gun)(gun)筒(tong)的熱量(liang),同時(shi)又(you)延長(chang)了(le)干(gan)燥時(shi)間,物(wu)(wu)料(liao)(liao)(liao)在(zai)此(ci)達到(dao)干(gan)燥狀態。物(wu)(wu)料(liao)(liao)(liao)行(xing)(xing)至中(zhong)層(ceng)另一端(duan)而落入外(wai)(wai)層(ceng),物(wu)(wu)料(liao)(liao)(liao)在(zai)外(wai)(wai)層(ceng)滾(gun)(gun)筒(tong)內(nei)(nei)呈矩形(xing)(xing)多回路方式行(xing)(xing)進(jin)(jin),達到(dao)干(gan)燥效(xiao)果的物(wu)(wu)料(liao)(liao)(liao)在(zai)熱風(feng)作(zuo)用下快速行(xing)(xing)進(jin)(jin)排出滾(gun)(gun)筒(tong),沒有達到(dao)干(gan)燥效(xiao)果的濕物(wu)(wu)料(liao)(liao)(liao)因自重而不(bu)能快速行(xing)(xing)進(jin)(jin),物(wu)(wu)料(liao)(liao)(liao)在(zai)此(ci)矩形(xing)(xing)抄板(ban)(ban)內(nei)(nei)進(jin)(jin)行(xing)(xing)充(chong)分干(gan)燥,由此(ci)完(wan)成干(gan)燥目的。