筒錐式過濾洗滌二合一 工作原理

發布時間：2022-01-13

    筒(tong)錐(zhui)式過(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)洗滌二合(he)一的錐(zhui)體或筒(tong)體內(nei)(nei)設置(zhi)有(you)多層孔板及過(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)介質疊合(he)而成過(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)裝置(zhi)，內(nei)(nei)部設置(zhi)有(you)攪拌(ban)軸和變(bian)角度變(bian)導程螺(luo)旋攪拌(ban)裝置(zhi)，在(zai)(zai)過(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)時對物(wu)(wu)料(liao)進(jin)行攪拌(ban)、提升和刮料(liao)操作，在(zai)(zai)卸(xie)料(liao)時自動推出濾(lv)(lv)(lv)(lv)(lv)(lv)餅(bing)。本機(ji)可進(jin)行真空過(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)或加壓過(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)。在(zai)(zai)過(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)過(guo)(guo)(guo)程中，機(ji)內(nei)(nei)刮刀不斷把濾(lv)(lv)(lv)(lv)(lv)(lv)網上的濾(lv)(lv)(lv)(lv)(lv)(lv)餅(bing)刮下，使物(wu)(wu)料(liao)在(zai)(zai)薄層濾(lv)(lv)(lv)(lv)(lv)(lv)餅(bing)條件下進(jin)行過(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)，過(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)速率很高。

    物料如需洗(xi)滌，可(ke)(ke)先將料漿(jiang)在機內(nei)濾(lv)(lv)干，然(ran)后加(jia)入(ru)洗(xi)滌液，利用(yong)機內(nei)刮(gua)刀(dao)、攪(jiao)拌(ban)器(qi)及擠(ji)壓(ya)螺旋等(deng)的(de)(de)旋轉攪(jiao)拌(ban)，使濾(lv)(lv)餅再(zai)漿(jiang)，這時再(zai)通過加(jia)壓(ya)或抽真空(kong)的(de)(de)方法把再(zai)漿(jiang)料過濾(lv)(lv)成濾(lv)(lv)餅。這樣(yang)反復(fu)多次再(zai)漿(jiang)過濾(lv)(lv)，可(ke)(ke)把物進行洗(xi)滌，再(zai)把濾(lv)(lv)餅全部擠(ji)出機外。

   (1) 壓濾或真空(kong)過濾

    將(jiang)上游反(fan)應釜或(huo)(huo)結晶設備產生的(de)(de)固(gu)液(ye)混合(he)物(wu)晶漿放料(liao)到(dao)二合(he)一設備罐(guan)體內，打開(kai)下(xia)部(bu)濾(lv)(lv)(lv)(lv)(lv)液(ye)出口(kou)，在(zai)設備內通入壓縮(suo)空(kong)(kong)(kong)氣(qi)或(huo)(huo)氮(dan)氣(qi)等氣(qi)體，對(dui)經過(guo)(guo)反(fan)應的(de)(de)固(gu)液(ye)混合(he)物(wu)進行加壓過(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)，直到(dao)把(ba)機(ji)內物(wu)料(liao)壓干。也可在(zai)濾(lv)(lv)(lv)(lv)(lv)液(ye)出口(kou)抽真空(kong)(kong)(kong)，對(dui)物(wu)料(liao)進行真空(kong)(kong)(kong)過(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)，直到(dao)把(ba)濾(lv)(lv)(lv)(lv)(lv)液(ye)抽干為(wei)止(zhi)。過(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)時可使(shi)空(kong)(kong)(kong)心(xin)軸(zhou)和空(kong)(kong)(kong)心(xin)螺(luo)帶按順時針方向旋轉(從頂部(bu)往(wang)下(xia)看(kan))，對(dui)物(wu)料(liao)進行提升，并使(shi)空(kong)(kong)(kong)心(xin)螺(luo)帶在(zai)旋轉時限制濾(lv)(lv)(lv)(lv)(lv)餅層的(de)(de)厚度，使(shi)物(wu)料(liao)在(zai)薄的(de)(de)濾(lv)(lv)(lv)(lv)(lv)餅層條件(jian)下(xia)進行過(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)，以提高過(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)速率(lv)。對(dui)于(yu)易(yi)過(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)的(de)(de)物(wu)料(liao)，過(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)時可不攪(jiao)拌，直接把(ba)物(wu)料(liao)濾(lv)(lv)(lv)(lv)(lv)干。

   (2) 可多次(ci)洗滌過濾

    有(you)些物料(liao)(liao)(liao)過(guo)濾(lv)完以后，還要進(jin)行多(duo)次(ci)洗(xi)滌(di)(di)(di)。反應過(guo)濾(lv)干燥多(duo)功(gong)能機用于對物料(liao)(liao)(liao)的(de)反復多(duo)次(ci)洗(xi)滌(di)(di)(di)是理想的(de)設備(bei)。物料(liao)(liao)(liao)在機內壓干后，可在頂部洗(xi)滌(di)(di)(di)液入口(kou)加入洗(xi)滌(di)(di)(di)液, 然后通(tong)過(guo)空心軸和(he)空心螺帶的(de)攪拌，對濾(lv)餅(bing)進(jin)行均勻(yun)再(zai)漿，再(zai)漿攪拌均勻(yun)后再(zai)把物料(liao)(liao)(liao)壓干。若洗(xi)滌(di)(di)(di)一次(ci)不夠，可進(jin)行多(duo)次(ci)洗(xi)滌(di)(di)(di)，這(zhe)時(shi)重復上述步(bu)驟(zou)多(duo)次(ci)即(ji)可，操(cao)作方(fang)便(bian)，勞動(dong)強度低。

    以上述(shu)方法對物料進(jin)(jin)行洗(xi)滌(di)(di)(di)(di)，我們稱(cheng)之為間歇洗(xi)滌(di)(di)(di)(di)法。由于(yu)每次是(shi)把(ba)物料壓(ya)(ya)干后再加洗(xi)滌(di)(di)(di)(di)液進(jin)(jin)行洗(xi)滌(di)(di)(di)(di)，因而操作(zuo)時雖然開(kai)關閥門次數多一點，但(dan)用(yong)(yong)的洗(xi)滌(di)(di)(di)(di)液較少(shao)。該機也可對物料進(jin)(jin)行連續(xu)洗(xi)滌(di)(di)(di)(di)，即把(ba)洗(xi)滌(di)(di)(di)(di)液用(yong)(yong)泵或(huo)其它方法連續(xu)壓(ya)(ya)入，利用(yong)(yong)洗(xi)滌(di)(di)(di)(di)液的壓(ya)(ya)力進(jin)(jin)行過濾，空(kong)(kong)心軸(zhou)和空(kong)(kong)心螺帶則不(bu)斷地攪拌，濾液從濾液出(chu)口連續(xu)排出(chu)，直至達到洗(xi)滌(di)(di)(di)(di)要求為止，再把(ba)濾餅壓(ya)(ya)干。這種連續(xu)洗(xi)滌(di)(di)(di)(di)的方法，一般比間歇洗(xi)滌(di)(di)(di)(di)用(yong)(yong)的洗(xi)滌(di)(di)(di)(di)液量要多，但(dan)操作(zuo)更方便。