產品概況
回(hui)轉式(shi)三筒(tong)烘(hong)干機改進(jin)原(yuan)單筒(tong)烘(hong)干機內(nei)部結構，增加(jia)入(ru)機前濕料的預烘(hong)干和延長濕料在機內(nei)烘(hong)干時(shi)間，再加(jia)上密封、保溫以(yi)及合(he)理(li)的配套(tao)措施(shi)，使烘(hong)干機生產能力與原(yuan)單筒(tong)式(shi)烘(hong)干機相比，提高48-80%，單位(wei)容積蒸(zheng)發強度可達120-180kg/m3，標準煤耗僅(jin)為6-8kg/t。其技術先進(jin)、運行(xing)參數合(he)理(li)，操作(zuo)簡單可行(xing)，廣泛(fan)應用于(yu)各個行(xing)業的礦渣、粘土、煤。
產品(pin)結構
三(san)筒(tong)烘干(gan)(gan)機是通(tong)過對單筒(tong)烘干(gan)(gan)機的(de)單筒(tong)體改(gai)為套疊在(zai)一起的(de)三(san)筒(tong)，以(yi)縮短烘干(gan)(gan)機體的(de)外形(xing)尺寸。該(gai)機工作時，物料和熱(re)(re)氣(qi)流(liu)(liu)依次(ci)進入(ru)內至外筒(tong)體，在(zai)機體Z形(xing)往(wang)復折流(liu)(liu)后(hou)(hou)，充分利用(yong)熱(re)(re)能(neng)烘干(gan)(gan)物料后(hou)(hou)再卸(xie)出。
烘干機筒體(ti)(ti)部分由三個(ge)同軸水平放置的內(nei)、中、外(wai)筒套疊(die)組成，這就使筒體(ti)(ti)的截面(mian)(mian)得到充分的利用。其筒體(ti)(ti)外(wai)形總長(chang)度約為與之(zhi)相當的單筒的30-35%。從而(er)大幅(fu)度地(di)(di)減少占地(di)(di)面(mian)(mian)積(ji)和(he)廠房(fang)建筑面(mian)(mian)積(ji)。
該機的(de)支(zhi)承裝置，是(shi)在(zai)外筒上輪(lun)帶與(yu)托(tuo)輪(lun)支(zhi)承，由電機直接帶動托(tuo)輪(lun)。通過托(tuo)輪(lun)與(yu)輪(lun)帶摩擦(ca)，使筒體轉動。該機總體結(jie)構緊湊(cou)、合(he)理、簡(jian)單，為(wei)便于磨損件的(de)檢修更換，在(zai)中間設計成軸向剖分式，用螺(luo)栓固定連(lian)接。
工作原(yuan)理
物(wu)料(liao)由供料(liao)裝置進(jin)(jin)(jin)入回轉滾(gun)筒(tong)(tong)的(de)(de)(de)內(nei)層(ceng)(ceng)(ceng)(ceng),實現順流烘干(gan)(gan),物(wu)料(liao)在內(nei)層(ceng)(ceng)(ceng)(ceng)的(de)(de)(de)抄板下不斷抄起、散落呈螺旋(xuan)行(xing)(xing)(xing)進(jin)(jin)(jin)式實現熱交換，物(wu)料(liao)移動至(zhi)內(nei)層(ceng)(ceng)(ceng)(ceng)的(de)(de)(de)另一(yi)端(duan)進(jin)(jin)(jin)入中(zhong)層(ceng)(ceng)(ceng)(ceng)，進(jin)(jin)(jin)行(xing)(xing)(xing)逆流烘干(gan)(gan)，物(wu)料(liao)在中(zhong)層(ceng)(ceng)(ceng)(ceng)不斷地(di)被反復揚進(jin)(jin)(jin)，呈進(jin)(jin)(jin)兩步(bu)退一(yi)步(bu)的(de)(de)(de)行(xing)(xing)(xing)進(jin)(jin)(jin)方式，物(wu)料(liao)在中(zhong)層(ceng)(ceng)(ceng)(ceng)既(ji)充(chong)(chong)分(fen)吸(xi)收(shou)內(nei)層(ceng)(ceng)(ceng)(ceng)滾(gun)筒(tong)(tong)散發(fa)的(de)(de)(de)熱量，又吸(xi)收(shou)中(zhong)層(ceng)(ceng)(ceng)(ceng)滾(gun)筒(tong)(tong)的(de)(de)(de)熱量，同(tong)時又延長了干(gan)(gan)燥(zao)時間(jian)，物(wu)料(liao)在此(ci)達(da)到干(gan)(gan)燥(zao)狀(zhuang)態(tai)。物(wu)料(liao)行(xing)(xing)(xing)至(zhi)中(zhong)層(ceng)(ceng)(ceng)(ceng)另一(yi)端(duan)而落入外層(ceng)(ceng)(ceng)(ceng)，物(wu)料(liao)在外層(ceng)(ceng)(ceng)(ceng)滾(gun)筒(tong)(tong)內(nei)呈矩(ju)形多回路(lu)方式行(xing)(xing)(xing)進(jin)(jin)(jin)，達(da)到干(gan)(gan)燥(zao)效果的(de)(de)(de)物(wu)料(liao)在熱風作用下快速(su)(su)行(xing)(xing)(xing)進(jin)(jin)(jin)排(pai)出滾(gun)筒(tong)(tong)，沒有達(da)到干(gan)(gan)燥(zao)效果的(de)(de)(de)濕物(wu)料(liao)因自重而不能快速(su)(su)行(xing)(xing)(xing)進(jin)(jin)(jin)，物(wu)料(liao)在此(ci)矩(ju)形抄板內(nei)進(jin)(jin)(jin)行(xing)(xing)(xing)充(chong)(chong)分(fen)干(gan)(gan)燥(zao)，由此(ci)完成干(gan)(gan)燥(zao)目的(de)(de)(de)。
