產品概況
回(hui)轉式三(san)筒烘干機改進原(yuan)單(dan)(dan)筒烘干機內部結(jie)構,增加(jia)入機前濕料的預烘干和延長濕料在機內烘干時間,再(zai)加(jia)上密封、保溫以及合(he)理的配套措施,使烘干機生產(chan)能力與原(yuan)單(dan)(dan)筒式烘干機相比,提高48-80%,單(dan)(dan)位容積(ji)蒸發(fa)強度可(ke)達120-180kg/m3,標準(zhun)煤耗僅為6-8kg/t。其技術(shu)先進、運(yun)行(xing)參數合(he)理,操作(zuo)簡單(dan)(dan)可(ke)行(xing),廣(guang)泛應用于各個行(xing)業的礦渣、粘土、煤。
產品(pin)結構
三筒烘干(gan)機(ji)是通過對(dui)單(dan)筒烘干(gan)機(ji)的(de)(de)單(dan)筒體(ti)改(gai)為(wei)套疊在一起的(de)(de)三筒,以縮短烘干(gan)機(ji)體(ti)的(de)(de)外形尺寸(cun)。該機(ji)工作時,物料和(he)熱氣流依次進入內至外筒體(ti),在機(ji)體(ti)Z形往復折流后,充分(fen)利用熱能烘干(gan)物料后再卸出。
烘(hong)干機(ji)筒(tong)體(ti)部分由三個同軸(zhou)水平放(fang)置的(de)內、中、外(wai)筒(tong)套(tao)疊組(zu)成,這就(jiu)使筒(tong)體(ti)的(de)截面(mian)得到充分的(de)利用。其筒(tong)體(ti)外(wai)形(xing)總長度約(yue)為與之相(xiang)當的(de)單(dan)筒(tong)的(de)30-35%。從而大幅度地減少占地面(mian)積和廠房建(jian)筑面(mian)積。
該機的支(zhi)承(cheng)裝置,是在外筒上(shang)輪(lun)帶與托(tuo)(tuo)輪(lun)支(zhi)承(cheng),由電機直接(jie)帶動托(tuo)(tuo)輪(lun)。通過托(tuo)(tuo)輪(lun)與輪(lun)帶摩(mo)擦(ca),使筒體轉動。該機總體結構(gou)緊湊(cou)、合理、簡單(dan),為(wei)便于(yu)磨損件的檢修更換,在中間(jian)設計成軸向剖(pou)分式,用螺栓固定(ding)連(lian)接(jie)。
工作(zuo)原(yuan)理
物(wu)料(liao)(liao)由供料(liao)(liao)裝置進(jin)(jin)(jin)入回(hui)轉滾(gun)筒(tong)(tong)的(de)(de)內層(ceng)(ceng)(ceng)(ceng),實(shi)現順流(liu)烘(hong)干(gan),物(wu)料(liao)(liao)在(zai)(zai)(zai)(zai)內層(ceng)(ceng)(ceng)(ceng)的(de)(de)抄(chao)板下不斷抄(chao)起、散落呈(cheng)螺旋行(xing)(xing)進(jin)(jin)(jin)式實(shi)現熱(re)交換,物(wu)料(liao)(liao)移動至內層(ceng)(ceng)(ceng)(ceng)的(de)(de)另(ling)一端(duan)進(jin)(jin)(jin)入中(zhong)層(ceng)(ceng)(ceng)(ceng),進(jin)(jin)(jin)行(xing)(xing)逆(ni)流(liu)烘(hong)干(gan),物(wu)料(liao)(liao)在(zai)(zai)(zai)(zai)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)兩步退一步的(de)(de)行(xing)(xing)進(jin)(jin)(jin)方式,物(wu)料(liao)(liao)在(zai)(zai)(zai)(zai)中(zhong)層(ceng)(ceng)(ceng)(ceng)既充(chong)分吸收內層(ceng)(ceng)(ceng)(ceng)滾(gun)筒(tong)(tong)散發的(de)(de)熱(re)量(liang),又吸收中(zhong)層(ceng)(ceng)(ceng)(ceng)滾(gun)筒(tong)(tong)的(de)(de)熱(re)量(liang),同時(shi)又延長(chang)了干(gan)燥時(shi)間,物(wu)料(liao)(liao)在(zai)(zai)(zai)(zai)此達到干(gan)燥狀態。物(wu)料(liao)(liao)行(xing)(xing)至中(zhong)層(ceng)(ceng)(ceng)(ceng)另(ling)一端(duan)而落入外(wai)層(ceng)(ceng)(ceng)(ceng),物(wu)料(liao)(liao)在(zai)(zai)(zai)(zai)外(wai)層(ceng)(ceng)(ceng)(ceng)滾(gun)筒(tong)(tong)內呈(cheng)矩形多回(hui)路方式行(xing)(xing)進(jin)(jin)(jin),達到干(gan)燥效果的(de)(de)物(wu)料(liao)(liao)在(zai)(zai)(zai)(zai)熱(re)風(feng)作(zuo)用下快速行(xing)(xing)進(jin)(jin)(jin)排出(chu)滾(gun)筒(tong)(tong),沒有達到干(gan)燥效果的(de)(de)濕物(wu)料(liao)(liao)因(yin)自重而不能快速行(xing)(xing)進(jin)(jin)(jin),物(wu)料(liao)(liao)在(zai)(zai)(zai)(zai)此矩形抄(chao)板內進(jin)(jin)(jin)行(xing)(xing)充(chong)分干(gan)燥,由此完成干(gan)燥目的(de)(de)。