供應二手滾筒干燥機 不銹鋼滾筒烘干機

工作原理滾筒干(gan)燥(zao)機(ji)的轉(zhuan)筒是(shi)略帶傾斜并能回轉(zhuan)的圓筒體，濕(shi)物(wu)料從(cong)(cong)一(yi)(yi)端(duan)上部(bu)進入(ru)，干(gan)物(wu)料從(cong)(cong)另(ling)一(yi)(yi)端(duan)下部(bu)收集。熱風從(cong)(cong)進料端(duan)或出(chu)料端(duan)進入(ru)，從(cong)(cong)另(ling)一(yi)(yi)端(duan)上部(bu)排(pai)出(chu)。筒內裝有順向抄板，使物(wu)料在筒體回轉(zhuan)過程中不(bu)斷抄起又灑(sa)下，使其充分(fen)與熱氣流(liu)接觸，以提高干(gan)燥(zao)效率(lv)并使物(wu)料向前(qian)移動。干(gan)燥(zao)物(wu)料熱源一(yi)(yi)般為熱空氣、高溫煙道(dao)氣、水(shui)蒸氣等。

單滾筒干燥機

單滾(gun)(gun)(gun)筒(tong)(tong)干(gan)燥機(ji)是(shi)指干(gan)燥機(ji)由(you)一(yi)只滾(gun)(gun)(gun)筒(tong)(tong)完成(cheng)干(gan)燥操作(zuo)的(de)機(ji)械，其組成(cheng)如上(shang)所述。干(gan)燥機(ji)的(de)重要組成(cheng)部(bu)分是(shi)滾(gun)(gun)(gun)筒(tong)(tong)，滾(gun)(gun)(gun)筒(tong)(tong)為一(yi)中空的(de)金(jin)屬圓筒(tong)(tong)，滾(gun)(gun)(gun)筒(tong)(tong)筒(tong)(tong)體用鑄鐵(tie)或鋼(gang)(gang)板(ban)(ban)焊制(zhi)，用于食品生產的(de)滾(gun)(gun)(gun)筒(tong)(tong)一(yi)般用不(bu)銹鋼(gang)(gang)鋼(gang)(gang)板(ban)(ban)焊制(zhi)。

滾(gun)筒(tong)直徑在0.6～1.6m范(fan)圍，長徑比（L/D）=0.8～2。

布料形式(shi)(shi)可視物料的物性(xing)而使用頂部入料或(huo)用浸(jin)液式(shi)(shi)、噴濺式(shi)(shi)上(shang)料等方法，附在滾筒上(shang)的料膜厚度為(wei)0.5～1.5mm。

加熱的(de)介(jie)質大部(bu)分(fen)采用蒸汽(qi)，蒸汽(qi)的(de)壓力為200～600kPa，滾筒(tong)外壁的(de)溫度為120～150℃。

驅動(dong)滾筒(tong)運(yun)轉的傳動(dong)機構(gou)為(wei)無級調(diao)速(su)機構(gou)，滾筒(tong)的轉速(su)一(yi)般在4～10r/min。

物(wu)料被干燥后，由刮料裝(zhuang)置將其從滾筒(tong)(tong)刮下，刮刀的位(wei)置視物(wu)料的進(jin)口位(wei)置而定，一般在滾筒(tong)(tong)斷(duan)面的Ⅲ、Ⅳ象限，與(yu)水(shui)平軸線交(jiao)角30°～45°范(fan)圍內。滾筒(tong)(tong)內供熱介質的進(jin)出口，采用聚(ju)四氟乙烯密封(feng)圈密封(feng)，滾筒(tong)(tong)內的冷凝(ning)水(shui)，采取虹吸管并利用滾筒(tong)(tong)蒸(zheng)汽的壓力與(yu)疏(shu)水(shui)閥之間的壓差，使之連續地排出筒(tong)(tong)外。

雙滾筒干燥機

雙滾筒(tong)干(gan)(gan)燥(zao)機(ji)是(shi)指干(gan)(gan)燥(zao)機(ji)由(you)兩(liang)(liang)只滾筒(tong)同(tong)時完成干(gan)(gan)燥(zao)操作(zuo)的機(ji)械，干(gan)(gan)燥(zao)機(ji)的兩(liang)(liang)個滾筒(tong)由(you)同(tong)一(yi)套減速傳動裝置，經相(xiang)同(tong)模(mo)數(shu)和(he)齒數(shu)的一(yi)對(dui)齒輪嚙合，使(shi)兩(liang)(liang)組相(xiang)同(tong)直徑的滾筒(tong)相(xiang)對(dui)轉動而操作(zuo)的。雙滾筒(tong)干(gan)(gan)燥(zao)機(ji)按布料位置的不同(tong)，可以分為對(dui)滾式(shi)和(he)同(tong)槽式(shi)兩(liang)(liang)類。

對滾(gun)(gun)式(shi)雙滾(gun)(gun)筒(tong)(tong)(tong)(tong)干燥(zao)機，料液存在兩滾(gun)(gun)筒(tong)(tong)(tong)(tong)中部的(de)(de)(de)(de)(de)凹(ao)槽區域內，四周設(she)(she)有(you)堰板擋料。兩筒(tong)(tong)(tong)(tong)的(de)(de)(de)(de)(de)間(jian)隙，由一對節圓直(zhi)徑(jing)與筒(tong)(tong)(tong)(tong)體(ti)外徑(jing)一致或相近的(de)(de)(de)(de)(de)嚙(nie)合輪控(kong)制(zhi)，一般在0.5～lmm范圍，不允許料液泄漏。對滾(gun)(gun)的(de)(de)(de)(de)(de)轉(zhuan)動方向(xiang)，可根據(ju)料液的(de)(de)(de)(de)(de)實際和裝置(zhi)布置(zhi)的(de)(de)(de)(de)(de)要求確定。滾(gun)(gun)筒(tong)(tong)(tong)(tong)轉(zhuan)動時(shi)咬入(ru)角位于料液端(duan)時(shi)，料膜(mo)的(de)(de)(de)(de)(de)厚度由兩筒(tong)(tong)(tong)(tong)之(zhi)間(jian)的(de)(de)(de)(de)(de)空隙控(kong)制(zhi)。咬入(ru)角若處于反向(xiang)時(shi)，兩筒(tong)(tong)(tong)(tong)之(zhi)間(jian)的(de)(de)(de)(de)(de)料膜(mo)厚度，由設(she)(she)置(zhi)在筒(tong)(tong)(tong)(tong)體(ti)長度方向(xiang)上的(de)(de)(de)(de)(de)堰板與筒(tong)(tong)(tong)(tong)體(ti)之(zhi)間(jian)的(de)(de)(de)(de)(de)間(jian)隙控(kong)制(zhi)。該形式(shi)的(de)(de)(de)(de)(de)干燥(zao)器，適(shi)用于有(you)沉淀的(de)(de)(de)(de)(de)漿狀物料或粘度大物料的(de)(de)(de)(de)(de)干燥(zao)。

同槽式雙滾(gun)筒(tong)(tong)干(gan)燥(zao)機。它的兩組(zu)滾(gun)筒(tong)(tong)之(zhi)間的間隙較大，相(xiang)對(dui)嚙合的齒輪的節圓直徑大于(yu)筒(tong)(tong)體外徑。上料時，兩筒(tong)(tong)在同一料槽中(zhong)浸液(ye)布膜，相(xiang)對(dui)轉(zhuan)動，互不干(gan)擾。適用于(yu)溶液(ye)、乳濁(zhuo)液(ye)等物料干(gan)燥(zao)。

雙滾(gun)(gun)筒(tong)(tong)(tong)(tong)式(shi)(shi)干(gan)(gan)燥機(ji)(ji)的(de)(de)(de)滾(gun)(gun)筒(tong)(tong)(tong)(tong)直(zhi)徑一般為0.5～2m；長徑比（L/D）=1.5～2。轉速(su)、滾(gun)(gun)筒(tong)(tong)(tong)(tong)內(nei)蒸汽壓力等操作(zuo)條件與(yu)單滾(gun)(gun)筒(tong)(tong)(tong)(tong)干(gan)(gan)燥機(ji)(ji)的(de)(de)(de)設計相(xiang)同(tong)，但傳(chuan)動(dong)功率(lv)為單滾(gun)(gun)筒(tong)(tong)(tong)(tong)的(de)(de)(de)2倍左右。雙滾(gun)(gun)筒(tong)(tong)(tong)(tong)式(shi)(shi)干(gan)(gan)燥機(ji)(ji)的(de)(de)(de)進(jin)料(liao)(liao)方(fang)式(shi)(shi)與(yu)單滾(gun)(gun)筒(tong)(tong)(tong)(tong)干(gan)(gan)燥機(ji)(ji)有所不同(tong)，若為上部(bu)進(jin)料(liao)(liao)，由料(liao)(liao)堰控制料(liao)(liao)膜的(de)(de)(de)厚度的(de)(de)(de)兩滾(gun)(gun)筒(tong)(tong)(tong)(tong)干(gan)(gan)燥器，可(ke)在干(gan)(gan)燥器底部(bu)的(de)(de)(de)中間位置(zhi)，設置(zhi)一臺(tai)螺旋輸送(song)器機(ji)(ji)，集中出料(liao)(liao)。下部(bu)進(jin)料(liao)(liao)的(de)(de)(de)對滾(gun)(gun)式(shi)(shi)雙滾(gun)(gun)筒(tong)(tong)(tong)(tong)干(gan)(gan)燥機(ji)(ji)，則分別在兩組滾(gun)(gun)筒(tong)(tong)(tong)(tong)的(de)(de)(de)側(ce)面單獨(du)設置(zhi)出料(liao)(liao)裝置(zhi)。

 供應二手滾筒干燥機 不銹鋼滾筒烘干機