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。
產品結構
三(san)筒(tong)(tong)式(shi)烘(hong)干(gan)機(ji)是通(tong)過對單筒(tong)(tong)烘(hong)干(gan)機(ji)的單筒(tong)(tong)體(ti)改(gai)為套(tao)疊(die)在一起(qi)的三(san)筒(tong)(tong),以縮(suo)短烘(hong)干(gan)機(ji)體(ti)的外形尺寸。該機(ji)工作時,物料(liao)(liao)和熱(re)氣流(liu)依次進(jin)入內至(zhi)外筒(tong)(tong)體(ti),在機(ji)體(ti)Z形往(wang)復折流(liu)后,充分利(li)用熱(re)能烘(hong)干(gan)物料(liao)(liao)后再卸(xie)出。
烘干機筒體(ti)部分由三個同軸水(shui)平(ping)放(fang)置的(de)(de)內、中、外筒套疊(die)組成,這就使筒體(ti)的(de)(de)截(jie)面得到(dao)充分的(de)(de)利用。其筒體(ti)外形總長度約為與之相當的(de)(de)單(dan)筒的(de)(de)30-35%。從(cong)而大幅度地減少占(zhan)地面積和(he)廠房建筑面積。
該機的支(zhi)承裝(zhuang)置,是在外筒上輪(lun)(lun)帶(dai)與(yu)托輪(lun)(lun)支(zhi)承,由電機直接帶(dai)動托輪(lun)(lun)。通(tong)過托輪(lun)(lun)與(yu)輪(lun)(lun)帶(dai)摩擦,使(shi)筒體轉(zhuan)動。該機總體結構緊湊(cou)、合理、簡單(dan),為便于(yu)磨損件的檢修更(geng)換,在中(zhong)間設計成軸(zhou)向剖分式(shi),用螺(luo)栓固定連(lian)接。
工作(zuo)原(yuan)理(li)
物(wu)(wu)料由供料裝置進(jin)(jin)(jin)入(ru)回轉滾(gun)筒(tong)的(de)(de)(de)內(nei)(nei)層(ceng)(ceng)(ceng)(ceng),實現順流烘(hong)干(gan)(gan)(gan),物(wu)(wu)料在內(nei)(nei)層(ceng)(ceng)(ceng)(ceng)的(de)(de)(de)抄(chao)板(ban)下不斷抄(chao)起、散(san)落呈(cheng)螺旋行(xing)(xing)(xing)進(jin)(jin)(jin)式實現熱交換,物(wu)(wu)料移動(dong)至內(nei)(nei)層(ceng)(ceng)(ceng)(ceng)的(de)(de)(de)另(ling)一(yi)(yi)端(duan)進(jin)(jin)(jin)入(ru)中(zhong)層(ceng)(ceng)(ceng)(ceng),進(jin)(jin)(jin)行(xing)(xing)(xing)逆流烘(hong)干(gan)(gan)(gan),物(wu)(wu)料在中(zhong)層(ceng)(ceng)(ceng)(ceng)不斷地被反(fan)復揚進(jin)(jin)(jin),呈(cheng)進(jin)(jin)(jin)兩步退一(yi)(yi)步的(de)(de)(de)行(xing)(xing)(xing)進(jin)(jin)(jin)方式,物(wu)(wu)料在中(zhong)層(ceng)(ceng)(ceng)(ceng)既充分吸收內(nei)(nei)層(ceng)(ceng)(ceng)(ceng)滾(gun)筒(tong)散(san)發的(de)(de)(de)熱量(liang),又吸收中(zhong)層(ceng)(ceng)(ceng)(ceng)滾(gun)筒(tong)的(de)(de)(de)熱量(liang),同(tong)時又延長(chang)了干(gan)(gan)(gan)燥(zao)時間,物(wu)(wu)料在此(ci)達(da)到(dao)干(gan)(gan)(gan)燥(zao)狀態。物(wu)(wu)料行(xing)(xing)(xing)至中(zhong)層(ceng)(ceng)(ceng)(ceng)另(ling)一(yi)(yi)端(duan)而落入(ru)外(wai)層(ceng)(ceng)(ceng)(ceng),物(wu)(wu)料在外(wai)層(ceng)(ceng)(ceng)(ceng)滾(gun)筒(tong)內(nei)(nei)呈(cheng)矩形(xing)多回路方式行(xing)(xing)(xing)進(jin)(jin)(jin),達(da)到(dao)干(gan)(gan)(gan)燥(zao)效(xiao)果(guo)的(de)(de)(de)物(wu)(wu)料在熱風作(zuo)用下快(kuai)速行(xing)(xing)(xing)進(jin)(jin)(jin)排出滾(gun)筒(tong),沒有達(da)到(dao)干(gan)(gan)(gan)燥(zao)效(xiao)果(guo)的(de)(de)(de)濕物(wu)(wu)料因自重(zhong)而不能快(kuai)速行(xing)(xing)(xing)進(jin)(jin)(jin),物(wu)(wu)料在此(ci)矩形(xing)抄(chao)板(ban)內(nei)(nei)進(jin)(jin)(jin)行(xing)(xing)(xing)充分干(gan)(gan)(gan)燥(zao),由此(ci)完成(cheng)干(gan)(gan)(gan)燥(zao)目(mu)的(de)(de)(de)。