帶式過(guo)濾機類型(xing)及應用介紹
真(zhen)空(kong)(kong)過濾脫(tuo)水目前應用較(jiao)少，使(shi)用的機械(xie)稱為真(zhen)空(kong)(kong)過濾機，可(ke)用于(yu)經預處理后的初次沉(chen)淀污(wu)泥(ni)、化(hua)學污(wu)泥(ni)及(ji)消化(hua)污(wu)泥(ni)等(deng)的脫(tuo)水。真(zhen)空(kong)(kong)過濾機脫(tuo)水的特點是能夠連續(xu)生產，運行穩(wen)定(ding)，工序較(jiao)復(fu)雜，運行費(fei)用較(jiao)高。
真(zhen)空(kong)過濾(lv)脫水目前應(ying)用(yong)較(jiao)少，使用(yong)的(de)(de)機(ji)械(xie)稱為真(zhen)空(kong)過濾(lv)機(ji)，可(ke)用(yong)于經預處理后(hou)的(de)(de)初次沉(chen)淀污泥(ni)、化學污泥(ni)及消(xiao)化污泥(ni)等(deng)的(de)(de)脫水。真(zhen)空(kong)過濾(lv)機(ji)脫水的(de)(de)特點是(shi)能夠(gou)連續生產，運(yun)行(xing)穩(wen)定，工序較(jiao)復(fu)雜，運(yun)行(xing)費(fei)用(yong)較(jiao)高。
壓濾(lv)(lv)脫水采(cai)用板框壓濾(lv)(lv)機(ji)。它的構造較簡單(dan)，過濾(lv)(lv)推動力大，適用于各種污泥。但不(bu)能連續(xu)運行。
滾壓脫水采用(yong)(yong)(yong)帶式壓濾(lv)機(ji)。其主(zhu)要(yao)特點是(shi)把(ba)壓力(li)(li)(li)施加在(zai)濾(lv)布上，用(yong)(yong)(yong)濾(lv)布的壓力(li)(li)(li)和張(zhang)力(li)(li)(li)使污泥脫水，而不需(xu)要(yao)真空或加壓設備，動力(li)(li)(li)消(xiao)耗少(shao)，可以連續生(sheng)產(chan)。這種脫水方(fang)法目前(qian)應用(yong)(yong)(yong)廣泛。
離(li)心(xin)脫水中脫水的推動(dong)力是離(li)心(xin)力，推動(dong)的對象是固相，離(li)心(xin)力的大(da)小可控制，比重(zhong)力大(da)幾百(bai)倍甚(shen)至幾萬倍，因此脫水的效果(guo)也比濃縮好(hao)。離(li)心(xin)機可連續操作(zuo)，工作(zuo)場所衛(wei)生條件好(hao)，占地面積小。但耗電(dian)量大(da)，噪聲大(da)。
壓濾(lv)機是如(ru)何工作的(de)呢？
壓(ya)(ya)濾(lv)機的(de)(de)液(ye)壓(ya)(ya)壓(ya)(ya)緊(jin)機械(xie)壓(ya)(ya)緊(jin)時，由液(ye)壓(ya)(ya)站供高壓(ya)(ya)油(you)(you)，油(you)(you)缸與活塞構(gou)成(cheng)的(de)(de)元(yuan)件腔(qiang)(qiang)充滿(man)油(you)(you)液(ye)，當壓(ya)(ya)力大于壓(ya)(ya)緊(jin)板(ban)運行的(de)(de)摩擦(ca)阻力時，壓(ya)(ya)緊(jin)板(ban)緩慢地壓(ya)(ya)緊(jin)濾(lv)板(ban)，當壓(ya)(ya)緊(jin)力達到溢流閥設定的(de)(de)壓(ya)(ya)力值（由壓(ya)(ya)力表指針(zhen)顯示）時，濾(lv)板(ban)、濾(lv)框（板(ban)框式）或濾(lv)板(ban)（廂式）被壓(ya)(ya)緊(jin)，溢流閥開始卸荷，這(zhe)時，切斷電機電源，壓(ya)(ya)緊(jin)動作完成(cheng)，退回(hui)時，換向閥換向，壓(ya)(ya)力油(you)(you)進入(ru)油(you)(you)缸的(de)(de)有桿腔(qiang)(qiang)，當油(you)(you)壓(ya)(ya)能克服壓(ya)(ya)緊(jin)板(ban)的(de)(de)摩擦(ca)阻力時，壓(ya)(ya)緊(jin)板(ban)開始退回(hui)。
壓(ya)濾機的(de)(de)(de)液壓(ya)壓(ya)緊(jin)(jin)為自(zi)動(dong)保壓(ya)時，壓(ya)緊(jin)(jin)力是由電(dian)(dian)接點壓(ya)力表(biao)(biao)控制的(de)(de)(de)，將壓(ya)力表(biao)(biao)的(de)(de)(de)上限(xian)(xian)指針(zhen)和下(xia)限(xian)(xian)指針(zhen)設定在工藝要求的(de)(de)(de)數值，當壓(ya)緊(jin)(jin)力達到(dao)壓(ya)力表(biao)(biao)的(de)(de)(de)上限(xian)(xian)時，電(dian)(dian)源(yuan)(yuan)切斷，油(you)泵停止供電(dian)(dian)，由于油(you)路系(xi)統(tong)可能產生的(de)(de)(de)內漏和外漏造成壓(ya)緊(jin)(jin)力下(xia)降，當降到(dao)壓(ya)力表(biao)(biao)下(xia)限(xian)(xian)指針(zhen)時，電(dian)(dian)源(yuan)(yuan)接通，油(you)泵開始供油(you)，壓(ya)力達到(dao)上限(xian)(xian)時，電(dian)(dian)源(yuan)(yuan)切斷，油(you)泵停止供油(you)，這樣循(xun)環以(yi)達到(dao)過濾物料的(de)(de)(de)過程中保證(zheng)壓(ya)緊(jin)(jin)力的(de)(de)(de)效(xiao)果。
過(guo)濾(lv)方(fang)式:濾(lv)液(ye)流(liu)出的(de)方(fang)式分(fen)明(ming)(ming)流(liu)過(guo)濾(lv)和暗流(liu)過(guo)濾(lv)。明(ming)(ming)流(liu)過(guo)濾(lv)，每個(ge)濾(lv)板(ban)的(de)下(xia)方(fang)出液(ye)孔上裝有水咀(ju)，濾(lv)液(ye)直觀地從(cong)水咀(ju)里流(liu)出。暗流(liu)過(guo)濾(lv)，每個(ge)濾(lv)板(ban)的(de)下(xia)方(fang)設有出液(ye)通(tong)道(dao)(dao)孔，若干塊濾(lv)板(ban)的(de)出液(ye)孔連成(cheng)一個(ge)出液(ye)通(tong)道(dao)(dao)，由止推板(ban)下(xia)方(fang)的(de)出液(ye)孔相(xiang)連接的(de)管道(dao)(dao)排出。
洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)方(fang)式(shi):濾(lv)餅(bing)需要洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)時，有(you)時流(liu)(liu)單(dan)向(xiang)(xiang)(xiang)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)和雙(shuang)向(xiang)(xiang)(xiang)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)，暗(an)流(liu)(liu)單(dan)向(xiang)(xiang)(xiang)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)和雙(shuang)向(xiang)(xiang)(xiang)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)。明(ming)流(liu)(liu)單(dan)向(xiang)(xiang)(xiang)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)是(shi)(shi)，洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液(ye)(ye)(ye)(ye)(ye)(ye)從(cong)(cong)止推板的(de)(de)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液(ye)(ye)(ye)(ye)(ye)(ye)進(jin)孔依次(ci)進(jin)入，穿(chuan)(chuan)過(guo)濾(lv)布再(zai)穿(chuan)(chuan)過(guo)濾(lv)餅(bing)，從(cong)(cong)無(wu)孔濾(lv)板流(liu)(liu)出(chu)，這(zhe)時有(you)孔板的(de)(de)出(chu)液(ye)(ye)(ye)(ye)(ye)(ye)水咀處于(yu)關閉狀態，無(wu)孔板的(de)(de)出(chu)液(ye)(ye)(ye)(ye)(ye)(ye)水咀是(shi)(shi)開啟(qi)狀態。明(ming)流(liu)(liu)雙(shuang)向(xiang)(xiang)(xiang)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)是(shi)(shi)，洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液(ye)(ye)(ye)(ye)(ye)(ye)從(cong)(cong)止推板上(shang)方(fang)的(de)(de)兩(liang)(liang)側(ce)(ce)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液(ye)(ye)(ye)(ye)(ye)(ye)進(jin)孔先(xian)(xian)后(hou)兩(liang)(liang)次(ci)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)，即(ji)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液(ye)(ye)(ye)(ye)(ye)(ye)先(xian)(xian)從(cong)(cong)一側(ce)(ce)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)再(zai)從(cong)(cong)另一側(ce)(ce)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)，洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液(ye)(ye)(ye)(ye)(ye)(ye)的(de)(de)出(chu)口(kou)同進(jin)口(kou)是(shi)(shi)對(dui)角(jiao)線方(fang)向(xiang)(xiang)(xiang)，所以又叫雙(shuang)向(xiang)(xiang)(xiang)交叉洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)。暗(an)流(liu)(liu)單(dan)向(xiang)(xiang)(xiang)流(liu)(liu)滌(di)(di)(di)(di)(di)是(shi)(shi)，洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液(ye)(ye)(ye)(ye)(ye)(ye)從(cong)(cong)止推板的(de)(de)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液(ye)(ye)(ye)(ye)(ye)(ye)進(jin)孔依次(ci)進(jin)入有(you)孔板，穿(chuan)(chuan)過(guo)濾(lv)布再(zai)穿(chuan)(chuan)過(guo)濾(lv)餅(bing)，從(cong)(cong)無(wu)孔濾(lv)板流(liu)(liu)出(chu)。暗(an)流(liu)(liu)雙(shuang)向(xiang)(xiang)(xiang)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)是(shi)(shi)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液(ye)(ye)(ye)(ye)(ye)(ye)從(cong)(cong)止板上(shang)方(fang)的(de)(de)兩(liang)(liang)側(ce)(ce)的(de)(de)兩(liang)(liang)個(ge)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液(ye)(ye)(ye)(ye)(ye)(ye)進(jin)孔先(xian)(xian)后(hou)兩(liang)(liang)次(ci)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)，即(ji)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)先(xian)(xian)從(cong)(cong)一側(ce)(ce)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)，再(zai)從(cong)(cong)另一側(ce)(ce)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)，洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液(ye)(ye)(ye)(ye)(ye)(ye)的(de)(de)出(chu)口(kou)是(shi)(shi)對(dui)角(jiao)線方(fang)向(xiang)(xiang)(xiang)，所以又叫暗(an)流(liu)(liu)雙(shuang)向(xiang)(xiang)(xiang)交叉洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)。
真(zhen)空(kong)(kong)過濾脫(tuo)水目前應用較(jiao)少，使(shi)用的機械(xie)稱為真(zhen)空(kong)(kong)過濾機，可(ke)用于(yu)經預處理后的初次沉(chen)淀污(wu)泥(ni)、化(hua)學污(wu)泥(ni)及(ji)消化(hua)污(wu)泥(ni)等(deng)的脫(tuo)水。真(zhen)空(kong)(kong)過濾機脫(tuo)水的特點是能夠連續(xu)生產，運行穩(wen)定(ding)，工序較(jiao)復(fu)雜，運行費(fei)用較(jiao)高。
真(zhen)空(kong)過濾(lv)脫水目前應(ying)用(yong)較(jiao)少，使用(yong)的(de)(de)機(ji)械(xie)稱為真(zhen)空(kong)過濾(lv)機(ji)，可(ke)用(yong)于經預處理后(hou)的(de)(de)初次沉(chen)淀污泥(ni)、化學污泥(ni)及消(xiao)化污泥(ni)等(deng)的(de)(de)脫水。真(zhen)空(kong)過濾(lv)機(ji)脫水的(de)(de)特點是(shi)能夠(gou)連續生產，運(yun)行(xing)穩(wen)定，工序較(jiao)復(fu)雜，運(yun)行(xing)費(fei)用(yong)較(jiao)高。
壓濾(lv)(lv)脫水采(cai)用板框壓濾(lv)(lv)機(ji)。它的構造較簡單(dan)，過濾(lv)(lv)推動力大，適用于各種污泥。但不(bu)能連續(xu)運行。
滾壓脫水采用(yong)(yong)(yong)帶式壓濾(lv)機(ji)。其主(zhu)要(yao)特點是(shi)把(ba)壓力(li)(li)(li)施加在(zai)濾(lv)布上，用(yong)(yong)(yong)濾(lv)布的壓力(li)(li)(li)和張(zhang)力(li)(li)(li)使污泥脫水，而不需(xu)要(yao)真空或加壓設備，動力(li)(li)(li)消(xiao)耗少(shao)，可以連續生(sheng)產(chan)。這種脫水方(fang)法目前(qian)應用(yong)(yong)(yong)廣泛。
離(li)心(xin)脫水中脫水的推動(dong)力是離(li)心(xin)力，推動(dong)的對象是固相，離(li)心(xin)力的大(da)小可控制，比重(zhong)力大(da)幾百(bai)倍甚(shen)至幾萬倍，因此脫水的效果(guo)也比濃縮好(hao)。離(li)心(xin)機可連續操作(zuo)，工作(zuo)場所衛(wei)生條件好(hao)，占地面積小。但耗電(dian)量大(da)，噪聲大(da)。
壓濾(lv)機是如(ru)何工作的(de)呢？
壓(ya)(ya)濾(lv)機的(de)(de)液(ye)壓(ya)(ya)壓(ya)(ya)緊(jin)機械(xie)壓(ya)(ya)緊(jin)時，由液(ye)壓(ya)(ya)站供高壓(ya)(ya)油(you)(you)，油(you)(you)缸與活塞構(gou)成(cheng)的(de)(de)元(yuan)件腔(qiang)(qiang)充滿(man)油(you)(you)液(ye)，當壓(ya)(ya)力大于壓(ya)(ya)緊(jin)板(ban)運行的(de)(de)摩擦(ca)阻力時，壓(ya)(ya)緊(jin)板(ban)緩慢地壓(ya)(ya)緊(jin)濾(lv)板(ban)，當壓(ya)(ya)緊(jin)力達到溢流閥設定的(de)(de)壓(ya)(ya)力值（由壓(ya)(ya)力表指針(zhen)顯示）時，濾(lv)板(ban)、濾(lv)框（板(ban)框式）或濾(lv)板(ban)（廂式）被壓(ya)(ya)緊(jin)，溢流閥開始卸荷，這(zhe)時，切斷電機電源，壓(ya)(ya)緊(jin)動作完成(cheng)，退回(hui)時，換向閥換向，壓(ya)(ya)力油(you)(you)進入(ru)油(you)(you)缸的(de)(de)有桿腔(qiang)(qiang)，當油(you)(you)壓(ya)(ya)能克服壓(ya)(ya)緊(jin)板(ban)的(de)(de)摩擦(ca)阻力時，壓(ya)(ya)緊(jin)板(ban)開始退回(hui)。
壓(ya)濾機的(de)(de)(de)液壓(ya)壓(ya)緊(jin)(jin)為自(zi)動(dong)保壓(ya)時，壓(ya)緊(jin)(jin)力是由電(dian)(dian)接點壓(ya)力表(biao)(biao)控制的(de)(de)(de)，將壓(ya)力表(biao)(biao)的(de)(de)(de)上限(xian)(xian)指針(zhen)和下(xia)限(xian)(xian)指針(zhen)設定在工藝要求的(de)(de)(de)數值，當壓(ya)緊(jin)(jin)力達到(dao)壓(ya)力表(biao)(biao)的(de)(de)(de)上限(xian)(xian)時，電(dian)(dian)源(yuan)(yuan)切斷，油(you)泵停止供電(dian)(dian)，由于油(you)路系(xi)統(tong)可能產生的(de)(de)(de)內漏和外漏造成壓(ya)緊(jin)(jin)力下(xia)降，當降到(dao)壓(ya)力表(biao)(biao)下(xia)限(xian)(xian)指針(zhen)時，電(dian)(dian)源(yuan)(yuan)接通，油(you)泵開始供油(you)，壓(ya)力達到(dao)上限(xian)(xian)時，電(dian)(dian)源(yuan)(yuan)切斷，油(you)泵停止供油(you)，這樣循(xun)環以(yi)達到(dao)過濾物料的(de)(de)(de)過程中保證(zheng)壓(ya)緊(jin)(jin)力的(de)(de)(de)效(xiao)果。
過(guo)濾(lv)方(fang)式:濾(lv)液(ye)流(liu)出的(de)方(fang)式分(fen)明(ming)(ming)流(liu)過(guo)濾(lv)和暗流(liu)過(guo)濾(lv)。明(ming)(ming)流(liu)過(guo)濾(lv)，每個(ge)濾(lv)板(ban)的(de)下(xia)方(fang)出液(ye)孔上裝有水咀(ju)，濾(lv)液(ye)直觀地從(cong)水咀(ju)里流(liu)出。暗流(liu)過(guo)濾(lv)，每個(ge)濾(lv)板(ban)的(de)下(xia)方(fang)設有出液(ye)通(tong)道(dao)(dao)孔，若干塊濾(lv)板(ban)的(de)出液(ye)孔連成(cheng)一個(ge)出液(ye)通(tong)道(dao)(dao)，由止推板(ban)下(xia)方(fang)的(de)出液(ye)孔相(xiang)連接的(de)管道(dao)(dao)排出。
洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)方(fang)式(shi):濾(lv)餅(bing)需要洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)時，有(you)時流(liu)(liu)單(dan)向(xiang)(xiang)(xiang)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)和雙(shuang)向(xiang)(xiang)(xiang)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)，暗(an)流(liu)(liu)單(dan)向(xiang)(xiang)(xiang)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)和雙(shuang)向(xiang)(xiang)(xiang)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)。明(ming)流(liu)(liu)單(dan)向(xiang)(xiang)(xiang)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)是(shi)(shi)，洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液(ye)(ye)(ye)(ye)(ye)(ye)從(cong)(cong)止推板的(de)(de)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液(ye)(ye)(ye)(ye)(ye)(ye)進(jin)孔依次(ci)進(jin)入，穿(chuan)(chuan)過(guo)濾(lv)布再(zai)穿(chuan)(chuan)過(guo)濾(lv)餅(bing)，從(cong)(cong)無(wu)孔濾(lv)板流(liu)(liu)出(chu)，這(zhe)時有(you)孔板的(de)(de)出(chu)液(ye)(ye)(ye)(ye)(ye)(ye)水咀處于(yu)關閉狀態，無(wu)孔板的(de)(de)出(chu)液(ye)(ye)(ye)(ye)(ye)(ye)水咀是(shi)(shi)開啟(qi)狀態。明(ming)流(liu)(liu)雙(shuang)向(xiang)(xiang)(xiang)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)是(shi)(shi)，洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液(ye)(ye)(ye)(ye)(ye)(ye)從(cong)(cong)止推板上(shang)方(fang)的(de)(de)兩(liang)(liang)側(ce)(ce)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液(ye)(ye)(ye)(ye)(ye)(ye)進(jin)孔先(xian)(xian)后(hou)兩(liang)(liang)次(ci)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)，即(ji)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液(ye)(ye)(ye)(ye)(ye)(ye)先(xian)(xian)從(cong)(cong)一側(ce)(ce)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)再(zai)從(cong)(cong)另一側(ce)(ce)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)，洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液(ye)(ye)(ye)(ye)(ye)(ye)的(de)(de)出(chu)口(kou)同進(jin)口(kou)是(shi)(shi)對(dui)角(jiao)線方(fang)向(xiang)(xiang)(xiang)，所以又叫雙(shuang)向(xiang)(xiang)(xiang)交叉洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)。暗(an)流(liu)(liu)單(dan)向(xiang)(xiang)(xiang)流(liu)(liu)滌(di)(di)(di)(di)(di)是(shi)(shi)，洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液(ye)(ye)(ye)(ye)(ye)(ye)從(cong)(cong)止推板的(de)(de)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液(ye)(ye)(ye)(ye)(ye)(ye)進(jin)孔依次(ci)進(jin)入有(you)孔板，穿(chuan)(chuan)過(guo)濾(lv)布再(zai)穿(chuan)(chuan)過(guo)濾(lv)餅(bing)，從(cong)(cong)無(wu)孔濾(lv)板流(liu)(liu)出(chu)。暗(an)流(liu)(liu)雙(shuang)向(xiang)(xiang)(xiang)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)是(shi)(shi)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液(ye)(ye)(ye)(ye)(ye)(ye)從(cong)(cong)止板上(shang)方(fang)的(de)(de)兩(liang)(liang)側(ce)(ce)的(de)(de)兩(liang)(liang)個(ge)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液(ye)(ye)(ye)(ye)(ye)(ye)進(jin)孔先(xian)(xian)后(hou)兩(liang)(liang)次(ci)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)，即(ji)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)先(xian)(xian)從(cong)(cong)一側(ce)(ce)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)，再(zai)從(cong)(cong)另一側(ce)(ce)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)，洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液(ye)(ye)(ye)(ye)(ye)(ye)的(de)(de)出(chu)口(kou)是(shi)(shi)對(dui)角(jiao)線方(fang)向(xiang)(xiang)(xiang)，所以又叫暗(an)流(liu)(liu)雙(shuang)向(xiang)(xiang)(xiang)交叉洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)滌(di)(di)(di)(di)(di)。
