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壓濾機濾餅的洗滌方式主要有以下幾種：

1、暗流單向(xiang)流滌是，洗液從止推板的洗液進孔依次進入(ru)有(you)孔板，穿(chuan)過濾布再(zai)穿(chuan)過濾餅，從無孔濾板流出。

2、暗(an)流雙(shuang)向(xiang)洗(xi)(xi)(xi)滌(di)(di)(di)(di)(di)是(shi)洗(xi)(xi)(xi)液(ye)從(cong)止板上方(fang)的(de)兩側(ce)的(de)兩個洗(xi)(xi)(xi)液(ye)進孔(kong)先后兩次洗(xi)(xi)(xi)滌(di)(di)(di)(di)(di)，即洗(xi)(xi)(xi)滌(di)(di)(di)(di)(di)先從(cong)一側(ce)洗(xi)(xi)(xi)滌(di)(di)(di)(di)(di)，再從(cong)另一側(ce)洗(xi)(xi)(xi)滌(di)(di)(di)(di)(di)，洗(xi)(xi)(xi)液(ye)的(de)出口是(shi)對角線方(fang)向(xiang)，所以又叫暗(an)流雙(shuang)向(xiang)交叉洗(xi)(xi)(xi)滌(di)(di)(di)(di)(di)。

3、明流單向洗(xi)滌是，洗(xi)液從(cong)止推板的洗(xi)液進孔(kong)(kong)依次進入，穿過濾(lv)布再穿過濾(lv)餅，從(cong)無孔(kong)(kong)濾(lv)板流出(chu)(chu)，這(zhe)時有孔(kong)(kong)板的出(chu)(chu)液水咀處于(yu)關(guan)閉狀態，無孔(kong)(kong)板的出(chu)(chu)液水咀是開(kai)啟狀態。

4、明流雙向(xiang)(xiang)洗(xi)(xi)滌(di)(di)(di)是(shi)，洗(xi)(xi)液從(cong)止推板上(shang)方的兩側洗(xi)(xi)液進孔(kong)先后(hou)兩次洗(xi)(xi)滌(di)(di)(di)，即(ji)洗(xi)(xi)液先從(cong)一側洗(xi)(xi)滌(di)(di)(di)再從(cong)另一側洗(xi)(xi)滌(di)(di)(di)，洗(xi)(xi)液的出口同進口是(shi)對(dui)角線方向(xiang)(xiang)，所以又(you)叫雙向(xiang)(xiang)交叉(cha)洗(xi)(xi)滌(di)(di)(di)。

濾餅洗滌的目的主要有3個：

● 通過洗(xi)滌功能(neng)可進一(yi)步從回收(shou)濾(lv)餅中(zhong)回收(shou)有價值的濾(lv)液(ye)(ye)，提高濾(lv)液(ye)(ye)回收(shou)率，或(huo)去除其中(zhong)有害(hai)成(cheng)份，提高濾(lv)液(ye)(ye)的回收(shou)率

● 洗滌濾(lv)餅(bing)中的(de)(de)液體雜質，提高濾(lv)餅(bing)的(de)(de)純凈(jing)度

● 用洗滌液溶去濾餅中有價值的成分或(huo)有害雜質(zhi)