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(san)筒式(shi)烘(hong)(hong)干機(ji)是通過對單筒烘(hong)(hong)干機(ji)的單筒體(ti)(ti)改為套疊在一起的三(san)筒,以縮(suo)短烘(hong)(hong)干機(ji)體(ti)(ti)的外形尺寸(cun)。該機(ji)工作時,物料(liao)和熱氣流依(yi)次進入內至外筒體(ti)(ti),在機(ji)體(ti)(ti)Z形往復折(zhe)流后,充分利用熱能烘(hong)(hong)干物料(liao)后再卸出。
烘(hong)干機(ji)筒(tong)體部分(fen)由三個同軸水(shui)平放(fang)置的(de)(de)內、中、外筒(tong)套疊組(zu)成,這就使(shi)筒(tong)體的(de)(de)截(jie)面得到充(chong)分(fen)的(de)(de)利用。其筒(tong)體外形總長(chang)度約為與之(zhi)相當的(de)(de)單筒(tong)的(de)(de)30-35%。從而(er)大(da)幅度地(di)減少占地(di)面積(ji)和廠房建筑面積(ji)。
該機的支(zhi)(zhi)承(cheng)裝置,是在(zai)外(wai)筒上(shang)輪(lun)帶與(yu)托(tuo)(tuo)輪(lun)支(zhi)(zhi)承(cheng),由電機直接(jie)(jie)帶動(dong)托(tuo)(tuo)輪(lun)。通過托(tuo)(tuo)輪(lun)與(yu)輪(lun)帶摩擦,使筒體轉動(dong)。該機總體結構緊湊(cou)、合理、簡單,為(wei)便于磨損件的檢修更(geng)換,在(zai)中間設(she)計成(cheng)軸向剖分式,用螺栓固定連接(jie)(jie)。
工(gong)作原(yuan)理(li)
物(wu)料(liao)(liao)(liao)(liao)由供料(liao)(liao)(liao)(liao)裝置進(jin)入(ru)(ru)回轉滾(gun)筒(tong)的(de)(de)內層(ceng)(ceng),實(shi)現(xian)順流(liu)烘(hong)干(gan),物(wu)料(liao)(liao)(liao)(liao)在(zai)內層(ceng)(ceng)的(de)(de)抄板下(xia)不(bu)(bu)斷抄起、散落呈螺旋行(xing)(xing)(xing)(xing)(xing)進(jin)式實(shi)現(xian)熱(re)(re)交換,物(wu)料(liao)(liao)(liao)(liao)移動至內層(ceng)(ceng)的(de)(de)另(ling)一(yi)端進(jin)入(ru)(ru)中(zhong)(zhong)(zhong)層(ceng)(ceng),進(jin)行(xing)(xing)(xing)(xing)(xing)逆(ni)流(liu)烘(hong)干(gan),物(wu)料(liao)(liao)(liao)(liao)在(zai)中(zhong)(zhong)(zhong)層(ceng)(ceng)不(bu)(bu)斷地被反復揚進(jin),呈進(jin)兩步(bu)退一(yi)步(bu)的(de)(de)行(xing)(xing)(xing)(xing)(xing)進(jin)方式,物(wu)料(liao)(liao)(liao)(liao)在(zai)中(zhong)(zhong)(zhong)層(ceng)(ceng)既充(chong)分吸收(shou)內層(ceng)(ceng)滾(gun)筒(tong)散發的(de)(de)熱(re)(re)量(liang),又(you)吸收(shou)中(zhong)(zhong)(zhong)層(ceng)(ceng)滾(gun)筒(tong)的(de)(de)熱(re)(re)量(liang),同(tong)時又(you)延長了干(gan)燥時間,物(wu)料(liao)(liao)(liao)(liao)在(zai)此達(da)(da)到干(gan)燥狀態(tai)。物(wu)料(liao)(liao)(liao)(liao)行(xing)(xing)(xing)(xing)(xing)至中(zhong)(zhong)(zhong)層(ceng)(ceng)另(ling)一(yi)端而(er)落入(ru)(ru)外(wai)層(ceng)(ceng),物(wu)料(liao)(liao)(liao)(liao)在(zai)外(wai)層(ceng)(ceng)滾(gun)筒(tong)內呈矩形(xing)(xing)多回路方式行(xing)(xing)(xing)(xing)(xing)進(jin),達(da)(da)到干(gan)燥效(xiao)果(guo)的(de)(de)物(wu)料(liao)(liao)(liao)(liao)在(zai)熱(re)(re)風作用下(xia)快速行(xing)(xing)(xing)(xing)(xing)進(jin)排出滾(gun)筒(tong),沒(mei)有達(da)(da)到干(gan)燥效(xiao)果(guo)的(de)(de)濕物(wu)料(liao)(liao)(liao)(liao)因(yin)自重(zhong)而(er)不(bu)(bu)能快速行(xing)(xing)(xing)(xing)(xing)進(jin),物(wu)料(liao)(liao)(liao)(liao)在(zai)此矩形(xing)(xing)抄板內進(jin)行(xing)(xing)(xing)(xing)(xing)充(chong)分干(gan)燥,由此完成干(gan)燥目(mu)的(de)(de)。