產品概(gai)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
三筒式烘(hong)干(gan)(gan)(gan)機是(shi)通過對單筒烘(hong)干(gan)(gan)(gan)機的單筒體改(gai)為套疊在一起(qi)的三筒,以縮短烘(hong)干(gan)(gan)(gan)機體的外形(xing)尺寸。該機工作(zuo)時,物料和(he)熱氣流依(yi)次進入內至(zhi)外筒體,在機體Z形(xing)往復折流后,充(chong)分利用熱能(neng)烘(hong)干(gan)(gan)(gan)物料后再卸出。
烘(hong)干機筒(tong)體部分由三個同軸水平放(fang)置的(de)內、中、外筒(tong)套疊組成,這(zhe)就(jiu)使(shi)筒(tong)體的(de)截面(mian)得到充(chong)分的(de)利用(yong)。其(qi)筒(tong)體外形(xing)總長度約為與之相當的(de)單筒(tong)的(de)30-35%。從而大幅(fu)度地減少占地面(mian)積(ji)和廠房建筑面(mian)積(ji)。
該機(ji)(ji)的支(zhi)承(cheng)裝置,是在外筒上(shang)輪帶(dai)(dai)(dai)與托輪支(zhi)承(cheng),由電(dian)機(ji)(ji)直接帶(dai)(dai)(dai)動(dong)托輪。通過托輪與輪帶(dai)(dai)(dai)摩擦,使筒體轉動(dong)。該機(ji)(ji)總體結構緊湊(cou)、合理、簡單(dan),為便于磨損件(jian)的檢修更(geng)換,在中(zhong)間設計(ji)成軸向(xiang)剖分式,用(yong)螺栓固定連(lian)接。
工作原理
物(wu)(wu)(wu)料(liao)由(you)供(gong)料(liao)裝置(zhi)進(jin)(jin)入(ru)(ru)回轉滾(gun)筒(tong)的內(nei)層(ceng)(ceng)(ceng),實現(xian)順(shun)流烘干,物(wu)(wu)(wu)料(liao)在(zai)(zai)(zai)(zai)內(nei)層(ceng)(ceng)(ceng)的抄板(ban)下(xia)不斷抄起、散(san)落呈螺旋行(xing)(xing)(xing)進(jin)(jin)式實現(xian)熱(re)交(jiao)換,物(wu)(wu)(wu)料(liao)移動至內(nei)層(ceng)(ceng)(ceng)的另一端進(jin)(jin)入(ru)(ru)中(zhong)層(ceng)(ceng)(ceng),進(jin)(jin)行(xing)(xing)(xing)逆流烘干,物(wu)(wu)(wu)料(liao)在(zai)(zai)(zai)(zai)中(zhong)層(ceng)(ceng)(ceng)不斷地被反復揚進(jin)(jin),呈進(jin)(jin)兩步退(tui)一步的行(xing)(xing)(xing)進(jin)(jin)方(fang)式,物(wu)(wu)(wu)料(liao)在(zai)(zai)(zai)(zai)中(zhong)層(ceng)(ceng)(ceng)既充分吸(xi)收內(nei)層(ceng)(ceng)(ceng)滾(gun)筒(tong)散(san)發的熱(re)量(liang),又(you)吸(xi)收中(zhong)層(ceng)(ceng)(ceng)滾(gun)筒(tong)的熱(re)量(liang),同時(shi)又(you)延長了干燥時(shi)間,物(wu)(wu)(wu)料(liao)在(zai)(zai)(zai)(zai)此(ci)達到(dao)干燥狀態(tai)。物(wu)(wu)(wu)料(liao)行(xing)(xing)(xing)至中(zhong)層(ceng)(ceng)(ceng)另一端而(er)落入(ru)(ru)外層(ceng)(ceng)(ceng),物(wu)(wu)(wu)料(liao)在(zai)(zai)(zai)(zai)外層(ceng)(ceng)(ceng)滾(gun)筒(tong)內(nei)呈矩(ju)(ju)形(xing)多回路方(fang)式行(xing)(xing)(xing)進(jin)(jin),達到(dao)干燥效(xiao)果的物(wu)(wu)(wu)料(liao)在(zai)(zai)(zai)(zai)熱(re)風作(zuo)用(yong)下(xia)快(kuai)速(su)行(xing)(xing)(xing)進(jin)(jin)排出(chu)滾(gun)筒(tong),沒有達到(dao)干燥效(xiao)果的濕物(wu)(wu)(wu)料(liao)因自重而(er)不能快(kuai)速(su)行(xing)(xing)(xing)進(jin)(jin),物(wu)(wu)(wu)料(liao)在(zai)(zai)(zai)(zai)此(ci)矩(ju)(ju)形(xing)抄板(ban)內(nei)進(jin)(jin)行(xing)(xing)(xing)充分干燥,由(you)此(ci)完成干燥目的。