產品概況
回(hui)轉式三筒烘(hong)干(gan)(gan)機改進原單筒烘(hong)干(gan)(gan)機內部結構,增(zeng)加入機前濕(shi)料(liao)的(de)預烘(hong)干(gan)(gan)和延(yan)長濕(shi)料(liao)在(zai)機內烘(hong)干(gan)(gan)時(shi)間,再加上密封、保(bao)溫以及(ji)合(he)理的(de)配套措施,使(shi)烘(hong)干(gan)(gan)機生產能(neng)力與(yu)原單筒式烘(hong)干(gan)(gan)機相比,提(ti)高48-80%,單位容積蒸發強(qiang)度可達120-180kg/m3,標準煤(mei)(mei)耗(hao)僅為6-8kg/t。其技術先進、運行參數合(he)理,操作簡單可行,廣泛(fan)應用于各個(ge)行業的(de)礦渣(zha)、粘土(tu)、煤(mei)(mei)。
產品結構
三筒(tong)烘(hong)干(gan)機(ji)(ji)是(shi)通(tong)過對單筒(tong)烘(hong)干(gan)機(ji)(ji)的單筒(tong)體改為套疊在(zai)一起的三筒(tong),以縮(suo)短烘(hong)干(gan)機(ji)(ji)體的外形尺(chi)寸。該機(ji)(ji)工作(zuo)時,物料和(he)熱(re)氣流(liu)依次進入內至外筒(tong)體,在(zai)機(ji)(ji)體Z形往(wang)復折流(liu)后,充分利用熱(re)能烘(hong)干(gan)物料后再卸出。
烘干機(ji)筒(tong)體(ti)(ti)部分由三個同軸水平(ping)放置的(de)內、中、外(wai)筒(tong)套疊(die)組(zu)成,這就使筒(tong)體(ti)(ti)的(de)截面(mian)(mian)(mian)得(de)到充分的(de)利用。其筒(tong)體(ti)(ti)外(wai)形總長(chang)度(du)(du)約為與之相當的(de)單筒(tong)的(de)30-35%。從而大(da)幅度(du)(du)地減少占地面(mian)(mian)(mian)積(ji)和廠房建筑面(mian)(mian)(mian)積(ji)。
該機的支承裝置,是在外筒(tong)上(shang)輪(lun)帶與(yu)托輪(lun)支承,由電(dian)機直(zhi)接(jie)帶動托輪(lun)。通過托輪(lun)與(yu)輪(lun)帶摩(mo)擦,使筒(tong)體轉(zhuan)動。該機總體結(jie)構緊湊、合理、簡單,為便(bian)于(yu)磨損件的檢修更換,在中(zhong)間設(she)計成軸向(xiang)剖分式,用螺栓固定連接(jie)。
工(gong)作(zuo)原理
物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)由供料(liao)(liao)(liao)(liao)裝(zhuang)置進(jin)(jin)入回(hui)轉滾(gun)筒(tong)的內層(ceng)(ceng),實現(xian)(xian)順流烘干(gan),物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)在(zai)內層(ceng)(ceng)的抄(chao)板(ban)下不(bu)斷抄(chao)起、散落(luo)呈(cheng)螺(luo)旋行(xing)進(jin)(jin)式實現(xian)(xian)熱(re)交換,物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)移動至(zhi)內層(ceng)(ceng)的另一(yi)端進(jin)(jin)入中(zhong)層(ceng)(ceng),進(jin)(jin)行(xing)逆流烘干(gan),物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)在(zai)中(zhong)層(ceng)(ceng)不(bu)斷地被反(fan)復揚進(jin)(jin),呈(cheng)進(jin)(jin)兩(liang)步(bu)退一(yi)步(bu)的行(xing)進(jin)(jin)方(fang)式,物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)在(zai)中(zhong)層(ceng)(ceng)既(ji)充分吸收(shou)內層(ceng)(ceng)滾(gun)筒(tong)散發的熱(re)量,又吸收(shou)中(zhong)層(ceng)(ceng)滾(gun)筒(tong)的熱(re)量,同時(shi)又延長(chang)了(le)干(gan)燥(zao)時(shi)間,物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)在(zai)此達到干(gan)燥(zao)狀態(tai)。物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)行(xing)至(zhi)中(zhong)層(ceng)(ceng)另一(yi)端而落(luo)入外(wai)層(ceng)(ceng),物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)在(zai)外(wai)層(ceng)(ceng)滾(gun)筒(tong)內呈(cheng)矩形(xing)多(duo)回(hui)路方(fang)式行(xing)進(jin)(jin),達到干(gan)燥(zao)效(xiao)果的物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)在(zai)熱(re)風(feng)作用(yong)下快速行(xing)進(jin)(jin)排出滾(gun)筒(tong),沒有達到干(gan)燥(zao)效(xiao)果的濕物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)因自重而不(bu)能快速行(xing)進(jin)(jin),物(wu)(wu)(wu)料(liao)(liao)(liao)(liao)在(zai)此矩形(xing)抄(chao)板(ban)內進(jin)(jin)行(xing)充分干(gan)燥(zao),由此完成干(gan)燥(zao)目的。