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廂式壓濾機濾室在整個過濾過程中起到的作用
- 2020-06-23-

  廂式(shi)壓濾(lv)(lv)機濾(lv)(lv)室在整個過濾(lv)(lv)過程中起到的作用(yong)


  廂式壓濾(lv)機工作原理(li)是由濾(lv)板排(pai)列組成濾(lv)室(濾(lv)板兩(liang)側凹(ao)進,每兩(liang)塊濾(lv)板組合成一(yi)廂形濾(lv)室)。


  原(yuan)理(li)圖示如下:濾板(ban)(ban)(ban)的(de)(de)表面有麻點和凸(tu)臺,用(yong)以支撐(cheng)濾布。濾板(ban)(ban)(ban)的(de)(de)中心和邊角上(shang)有通孔(kong),組裝后構成(cheng)完整的(de)(de)通道,能通入懸浮液、洗滌水和引出濾液。濾板(ban)(ban)(ban)兩側各(ge)有把手支托(tuo)在橫梁上(shang),由壓(ya)緊裝置(zhi)壓(ya)緊濾板(ban)(ban)(ban)。濾板(ban)(ban)(ban)之間的(de)(de)濾布起(qi)密封作用(yong)。


  在輸料泵的壓(ya)力作用下(xia),將(jiang)需(xu)要過(guo)(guo)濾(lv)(lv)的物(wu)料液(ye)體(ti)(ti)送進各(ge)濾(lv)(lv)室(shi),通(tong)過(guo)(guo)過(guo)(guo)濾(lv)(lv)介質(根據(ju)不同行業(ye)選擇合適的濾(lv)(lv)布),將(jiang)固體(ti)(ti)和液(ye)體(ti)(ti)分離。在濾(lv)(lv)布上形(xing)成濾(lv)(lv)渣,直(zhi)至(zhi)充滿濾(lv)(lv)室(shi)形(xing)成濾(lv)(lv)餅。濾(lv)(lv)液(ye)穿過(guo)(guo)濾(lv)(lv)布并(bing)沿(yan)濾(lv)(lv)板溝槽流至(zhi)下(xia)方出液(ye)孔(kong)通(tong)道,集中排(pai)出。過(guo)(guo)濾(lv)(lv)完畢,可通(tong)入清洗(xi)滌水洗(xi)滌濾(lv)(lv)渣。洗(xi)滌后,有時還通(tong)入壓(ya)縮空氣,除去(qu)剩余(yu)的洗(xi)滌液(ye)。過(guo)(guo)濾(lv)(lv)結束后打(da)開(kai)壓(ya)濾(lv)(lv)機卸(xie)除濾(lv)(lv)餅(濾(lv)(lv)餅儲存在于相鄰兩個(ge)濾(lv)(lv)板間),清洗(xi)濾(lv)(lv)布,重新壓(ya)緊板濾(lv)(lv)開(kai)始下(xia)一(yi)工作循環(huan)。


  廂式(shi)壓(ya)(ya)濾(lv)(lv)(lv)(lv)(lv)機(ji)工作(zuo)原理板(ban)(ban)(ban)框式(shi)的(de)(de)濾(lv)(lv)(lv)(lv)(lv)室時有一(yi)塊(kuai)平(ping)板(ban)(ban)(ban)濾(lv)(lv)(lv)(lv)(lv)板(ban)(ban)(ban)和(he)一(yi)塊(kuai)中空(kong)的(de)(de)濾(lv)(lv)(lv)(lv)(lv)框組成,濾(lv)(lv)(lv)(lv)(lv)布(bu)(bu)固定(ding)在板(ban)(ban)(ban)框上(shang)的(de)(de),這是(shi)(shi)(shi)早期主(zhu)要(yao)壓(ya)(ya)濾(lv)(lv)(lv)(lv)(lv)機(ji)形式(shi),廂式(shi)壓(ya)(ya)濾(lv)(lv)(lv)(lv)(lv)機(ji)的(de)(de)主(zhu)要(yao)優(you)點(dian)是(shi)(shi)(shi)更換(huan)濾(lv)(lv)(lv)(lv)(lv)布(bu)(bu)方便,缺(que)點(dian)是(shi)(shi)(shi)效(xiao)(xiao)率(lv)低、過濾(lv)(lv)(lv)(lv)(lv)效(xiao)(xiao)果(guo)不(bu)好(hao)、濾(lv)(lv)(lv)(lv)(lv)板(ban)(ban)(ban)容易壞;廂式(shi)壓(ya)(ya)濾(lv)(lv)(lv)(lv)(lv)機(ji)的(de)(de)濾(lv)(lv)(lv)(lv)(lv)室是(shi)(shi)(shi)由相(xiang)(xiang)鄰兩塊(kuai)凹陷的(de)(de)濾(lv)(lv)(lv)(lv)(lv)板(ban)(ban)(ban)構成的(de)(de),濾(lv)(lv)(lv)(lv)(lv)布(bu)(bu)固定(ding)在每(mei)塊(kuai)濾(lv)(lv)(lv)(lv)(lv)板(ban)(ban)(ban)上(shang),廂式(shi)壓(ya)(ya)濾(lv)(lv)(lv)(lv)(lv)機(ji)的(de)(de)主(zhu)要(yao)優(you)點(dian)是(shi)(shi)(shi)效(xiao)(xiao)率(lv)較(jiao)高、效(xiao)(xiao)果(guo)較(jiao)好(hao)、濾(lv)(lv)(lv)(lv)(lv)板(ban)(ban)(ban)也(ye)(ye)相(xiang)(xiang)對(dui)耐用(yong)(相(xiang)(xiang)同(tong)條件下),缺(que)點(dian)是(shi)(shi)(shi)更換(huan)濾(lv)(lv)(lv)(lv)(lv)布(bu)(bu)有點(dian)麻煩,不(bu)過現在自動(dong)化程度都較(jiao)高,清洗濾(lv)(lv)(lv)(lv)(lv)布(bu)(bu)也(ye)(ye)有自動(dong)裝置,一(yi)般(ban)更換(huan)濾(lv)(lv)(lv)(lv)(lv)布(bu)(bu)的(de)(de)次數也(ye)(ye)不(bu)會頻繁(fan)。


  過濾部分


  過濾(lv)(lv)(lv)部分是(shi)由按一(yi)定次序排(pai)列在(zai)主梁(liang)上的(de)(de)(de)濾(lv)(lv)(lv)板(ban)、夾在(zai)濾(lv)(lv)(lv)板(ban)之間(jian)的(de)(de)(de)濾(lv)(lv)(lv)布、隔膜濾(lv)(lv)(lv)板(ban)組成,濾(lv)(lv)(lv)板(ban)、濾(lv)(lv)(lv)布與隔膜濾(lv)(lv)(lv)板(ban)的(de)(de)(de)相間(jian)排(pai)列,形成了若干個獨立的(de)(de)(de)過濾(lv)(lv)(lv)單元──濾(lv)(lv)(lv)室過濾(lv)(lv)(lv)開始時,料(liao)漿在(zai)進(jin)(jin)料(liao)泵的(de)(de)(de)推(tui)動(dong)下,經止(zhi)推(tui)板(ban)上的(de)(de)(de)進(jin)(jin)料(liao)口(kou)(kou)進(jin)(jin)入各濾(lv)(lv)(lv)室內,并借進(jin)(jin)料(liao)泵產生的(de)(de)(de)壓力進(jin)(jin)行過濾(lv)(lv)(lv)。由于(yu)(yu)濾(lv)(lv)(lv)布的(de)(de)(de)作用(yong),使固體留(liu)在(zai)濾(lv)(lv)(lv)室內形成濾(lv)(lv)(lv)餅(bing)(bing)(bing),濾(lv)(lv)(lv)液由水(shui)嘴(zui)(明流)或出液閥(暗流)排(pai)出(水(shui)嘴(zui)規格見(jian)附(fu)表一(yi))。若需(xu)洗(xi)滌(di)濾(lv)(lv)(lv)餅(bing)(bing)(bing),可由止(zhi)推(tui)板(ban)上的(de)(de)(de)洗(xi)滌(di)口(kou)(kou)通(tong)入洗(xi)滌(di)水(shui),對濾(lv)(lv)(lv)餅(bing)(bing)(bing)進(jin)(jin)行洗(xi)滌(di);若需(xu)要較(jiao)低(di)含水(shui)率(lv)的(de)(de)(de)濾(lv)(lv)(lv)餅(bing)(bing)(bing),同樣可從洗(xi)滌(di)口(kou)(kou)通(tong)入壓縮(suo)空氣(qi),穿過濾(lv)(lv)(lv)餅(bing)(bing)(bing)層,以帶走濾(lv)(lv)(lv)餅(bing)(bing)(bing)中的(de)(de)(de)部分水(shui)分(適用(yong)于(yu)(yu)Uk機(ji)型(xing))。若從進(jin)(jin)氣(qi)口(kou)(kou)通(tong)入壓縮(suo)空氣(qi)或高壓液體,鼓動(dong)隔膜,對濾(lv)(lv)(lv)餅(bing)(bing)(bing)進(jin)(jin)行壓榨,可進(jin)(jin)一(yi)步(bu)降低(di)濾(lv)(lv)(lv)餅(bing)(bing)(bing)的(de)(de)(de)含水(shui)率(lv)


  在壓濾(lv)(lv)機使(shi)用(yong)過程中(zhong)(zhong),濾(lv)(lv)布起(qi)著關鍵的作用(yong),其(qi)(qi)性能的好(hao)壞,選型的正確與否直(zhi)接影響著過濾(lv)(lv)效果。目(mu)前所使(shi)用(yong)的濾(lv)(lv)布中(zhong)(zhong),常見(jian)的是由(you)合(he)成纖(xian)維(wei)紡(fang)織而成,根據其(qi)(qi)材質(zhi)的不同可分為滌綸、維(wei)綸、丙綸、錦綸等幾種。