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fl"><b>技術(shù)文章</b></span><span id="o0u82yaiea" class="Position fr">您的位置：<a href="/">網(wǎng)站首頁(yè)</a> ><a href="/article.html">技術(shù)文章</a> >全面解析多介質(zhì)過(guò)濾器的工作原理及操作日常維護(hù)</span></dt> <dd> <div id="o0u82yaiea" class="View"> <div id="o0u82yaiea" class="PageView"> <h1 id="inside_rnewtil">全面解析多介質(zhì)過(guò)濾器的工作原理及操作日常維護(hù)</h1> <div id="o0u82yaiea" class="inside_rnewtime">更新更新時(shí)間：2022-04-07 點(diǎn)擊次數(shù)：1255次</div> <div id="o0u82yaiea" class="inside_rnewcon"><p>工藝原理<br/>多介質(zhì)過(guò)濾器是利用石英砂、無(wú)煙煤兩種濾料去除原水中的懸浮物，屬于普通快濾設(shè)備。</p><p>含有懸浮物顆粒的水與絮凝劑充分混合，使水中形成膠體顆粒的雙電層被壓縮。當(dāng)膠體顆粒流過(guò)多介質(zhì)過(guò)濾器的濾料層時(shí)，濾料縫隙對(duì)懸浮物起篩濾作用使懸浮物易于吸附在濾料表面。當(dāng)在濾料表層截留了一定量的污物形成濾膜，隨時(shí)間推移過(guò)濾器的前后壓差將會(huì)升高，直至失效。此時(shí)需要利用逆向水流反洗濾料，使過(guò)濾器內(nèi)石英砂及無(wú)煙煤層懸浮松動(dòng)，從而使粘附于石英砂及無(wú)煙煤表面的截留物剝離并被水流帶走，恢復(fù)過(guò)濾功能。本工程中使用的雙層濾料是在過(guò)濾層上部放置較輕的大顆粒無(wú)煙煤，下部為大比重的小顆粒石英砂，這樣可以充分發(fā)揮整個(gè)濾層的效率、提高截污能力。</p><p><br/></p><p>1、日常運(yùn)行檢查：<br/>進(jìn)入正常生產(chǎn)后, 操作人員每小時(shí)要定期巡回檢查設(shè)備現(xiàn)場(chǎng)。把巡檢的結(jié)果如實(shí)記錄下來(lái)，與運(yùn)行記錄一起給予總結(jié)，作為定期維修的資料。</p><div id="o0u82yaiea" class="tabledivclass" style="width: 99%; height: 207px;"><table border="1" cellpadding="2" cellspacing="0" style="border-bottom: 1px solid rgb(204, 204, 204); border-right: 1px solid rgb(204, 204, 204); border-spacing: 0px; color: rgb(55, 61, 73); font-family: "microsoft yahei"; font-size: 14px; margin: 9.10938px; padding: 0px; width: 685px; max-width: 748px;" align="left"><tbody><tr class="firstRow"><td>檢查周期</td><td>檢查項(xiàng)目</td><td>檢查方法或檢查點(diǎn)</td><td>備注</td></tr><tr><td rowspan="2">每班一次</td><td>檢查有否漏水</td><td>設(shè)備的各密封部位及附屬閥門(mén)等各處是否漏水</td><td>如有漏水，找出漏水點(diǎn)位置及原因，及時(shí)止漏</td></tr><tr><td>檢查有否震動(dòng)</td><td>閥門(mén)開(kāi)閉時(shí)，是否有異常震動(dòng)</td><td>如有震動(dòng)，查明原因，及時(shí)采取解決措施</td></tr><tr><td>每月一次</td><td>校驗(yàn)流量</td><td>檢查流量計(jì)示值，驗(yàn)證其是否表示正常流量</td><td>如流量顯示不正常，及時(shí)查明原因，排除故障</td></tr></tbody></table></div><p>2、定期檢查：<br/>設(shè)備要進(jìn)行定期檢查, 其目的是為了保證在較長(zhǎng)時(shí)間內(nèi)系統(tǒng)安全運(yùn)行。本設(shè)備是較大型設(shè)備，檢查作業(yè)需要較長(zhǎng)時(shí)間。為了縮短定期檢查的停車時(shí)間，應(yīng)盡量與原水處理裝置其他設(shè)備裝置的檢修同時(shí)進(jìn)行，如發(fā)現(xiàn)有異常，要及時(shí)處理。</p><div id="o0u82yaiea" class="tabledivclass" style="width: 99%; height: 257px;"><table border="1" cellpadding="2" cellspacing="0" style="border-bottom: 1px solid rgb(204, 204, 204); border-right: 1px solid rgb(204, 204, 204); border-spacing: 0px; color: rgb(55, 61, 73); font-family: "microsoft yahei"; font-size: 14px; margin: 9.10938px; padding: 0px; width: 685px; max-width: 748px;" align="left"><tbody><tr class="firstRow"><td>NO.</td><td>檢查項(xiàng)目</td><td>檢查方法</td></tr><tr><td>1</td><td>填料檢查</td><td>檢查石英砂無(wú)煙煤濾料, 如石英砂無(wú)煙煤污染嚴(yán)重, 則應(yīng)全部予以更換。</td></tr><tr><td>2</td><td>濾水帽檢查</td><td>取出填料, 用水沖洗干凈, 對(duì)多孔板上的濾水帽進(jìn)行檢查, 發(fā)現(xiàn)破損或松動(dòng), 及時(shí)更換或固定。</td></tr><tr><td>3</td><td>橡膠襯里層檢查</td><td>如發(fā)現(xiàn)襯膠層有氣泡、裂紋、膠剝離、微孔等要進(jìn)行修補(bǔ)。</td></tr><tr><td>4</td><td>內(nèi)部緊固件檢查</td><td>檢查過(guò)濾器內(nèi)的螺栓螺母等緊固件,如有松動(dòng)應(yīng)擰緊。</td></tr><tr><td>5</td><td>人孔密封墊檢查</td><td>更換變形的人孔密封墊；將螺栓螺母浸在清洗油內(nèi), *除銹；安裝人孔蓋時(shí)螺栓螺母要涂黃油。</td></tr></tbody></table></div><p>3、濾料更換：</p><div id="o0u82yaiea" class="tabledivclass" style="width: 99%; height: 211px;"><table border="1" cellpadding="2" cellspacing="0" style="border-bottom: 1px solid rgb(204, 204, 204); border-right: 1px solid rgb(204, 204, 204); border-spacing: 0px; color: rgb(55, 61, 73); font-family: "microsoft yahei"; font-size: 14px; margin: 9.10938px; padding: 0px; width: 685px; max-width: 748px;" align="left"><tbody><tr class="firstRow"><td>NO.</td><td>操作步驟</td><td>操作方法</td></tr><tr><td>1</td><td>排水</td><td>排凈過(guò)濾器內(nèi)部的積水</td></tr><tr><td>2</td><td>卸料</td><td>打開(kāi)過(guò)濾器卸料口，從反洗口少量進(jìn)水，將填料沖出。</td></tr><tr><td>3</td><td>清理</td><td>排凈過(guò)濾器內(nèi)積水，打開(kāi)上人孔，進(jìn)入過(guò)濾器，將剩余的濾料清理出過(guò)濾器。</td></tr><tr><td>4</td><td>清洗</td><td>用抹布清洗過(guò)濾器內(nèi)部。</td></tr><tr><td>5</td><td>裝填濾料</td><td>封閉卸料口，按規(guī)定填高裝填濾料，先裝石英砂，裝完后扒平整，再裝無(wú)煙煤。</td></tr><tr><td>6</td><td>封閉過(guò)濾器</td><td>檢查濾料裝填高度滿足要求，封閉上人孔。</td></tr><tr><td>7</td><td>沖洗濾料</td><td>按過(guò)濾器反洗步序沖洗濾料，至排水濁度小于1度。</td></tr></tbody></table></div><p>濾料：<br/>（1）無(wú)煙煤（上層）：粒徑：0.8-1.2mm；厚度：400mm<br/>（2）石英砂（下層）：粒徑：0.4-0.65mm；厚度：800mm</p><p><br/></p><p>4多介質(zhì)過(guò)濾器通用操作步驟：</p><p>1、設(shè)備制水：<br/>1.1正洗(一)<br/>開(kāi)正洗排水閥MV116。<br/>開(kāi)進(jìn)水閥MV111。<br/>正洗3分鐘或出水濁度小于1NTU時(shí)正洗合格。<br/><br/>1.2制水<br/>開(kāi)出水閥MV112。<br/>關(guān)正洗排水閥MV116。<br/>開(kāi)始制水。<br/>系統(tǒng)運(yùn)行巡檢。<br/><br/>2、設(shè)備反洗：<br/>2.1松濾料<br/>檢查反洗水箱的液位是否處于高液位,必須滿足過(guò)濾器反洗水量的要求。<br/>打開(kāi)反洗排水閥MV114<br/>啟動(dòng)反洗泵P102。<br/>開(kāi)反洗進(jìn)水閥MV113，反洗5分鐘。</p><p>2.2 排水<br/>關(guān)反洗進(jìn)水閥MV113。<br/>關(guān)反洗泵P102。<br/>打開(kāi)正排閥MV116、排氣閥MV117。<br/>排水至過(guò)濾器液位到達(dá)上視鏡中部(排水時(shí)間10分鐘)。</p><p>2..3 氣擦洗<br/>關(guān)正排閥MV116。<br/>打開(kāi)進(jìn)氣閥MV115。<br/>氣擦洗時(shí)間3-5分鐘。<br/><br/>2.4水反洗<br/>關(guān)進(jìn)氣閥MV115、排氣閥MV117。<br/>啟動(dòng)反洗泵P102。<br/>開(kāi)反洗進(jìn)水閥MV113，反洗10-15分鐘。<br/><br/>2.5靜置<br/>關(guān)反洗進(jìn)水閥MV113。<br/>關(guān)反洗泵P102。<br/>靜置3分鐘。<br/><br/>2.6 正洗（二）<br/>關(guān)反洗排水閥MV114。<br/>開(kāi)進(jìn)水閥門(mén)MV111，下排閥MV116。<br/>正洗時(shí)間30分鐘或出水濁度小于1NTU時(shí)正洗合格。<br/>設(shè)備轉(zhuǎn)入備用狀態(tài)。<br/><br/>3、設(shè)備切換：<br/>當(dāng)一臺(tái)多介質(zhì)過(guò)濾器運(yùn)行時(shí)間到達(dá)反洗的累計(jì)運(yùn)行時(shí)間時(shí)，過(guò)濾器按“2、設(shè)備反洗"的次序進(jìn)行反洗，反洗結(jié)束后進(jìn)入備用狀態(tài)，與此同時(shí)原備用過(guò)濾器投入運(yùn)行。</p><p><br/></p><p>5、運(yùn)行說(shuō)明：<br/>本裝置中多介質(zhì)過(guò)濾器的運(yùn)行及正、反洗均為自動(dòng)運(yùn)行，在試運(yùn)行時(shí)或正式運(yùn)行后，應(yīng)按以下內(nèi)容調(diào)整：<br/>處理量：<br/>設(shè)計(jì)處理流量: 27m3/h，設(shè)計(jì)流速5.5m/h。</p><p>連續(xù)運(yùn)行時(shí)間：<br/>系統(tǒng)的設(shè)計(jì)運(yùn)行時(shí)間24小時(shí), 隨后應(yīng)對(duì)多介質(zhì)過(guò)濾器進(jìn)行反洗；并應(yīng)依據(jù)季節(jié)不同、水質(zhì)的變化等調(diào)整反洗周期，確保出水濁度小于1度。當(dāng)多介質(zhì)過(guò)濾器進(jìn)出壓差達(dá)0.03 Mpa時(shí), 應(yīng)反洗。</p><p>反洗流量：<br/>反洗的目的在于使石英砂、無(wú)煙煤反向松動(dòng), 并將濾層上所截留的截留物沖走，達(dá)到清潔濾層的作用, 通?？刂品礇_洗流速在30 m/s左右,以無(wú)煙煤不被沖跑為宜。</p><p>反洗時(shí)間：<br/>反洗時(shí)間的長(zhǎng)短和填料層的截污量有關(guān)。反沖洗時(shí)間可根據(jù)反沖洗排水濁度而定。一般情況下反沖洗濁度應(yīng)小于1NTU,即1度，且時(shí)間不少于5分鐘，可根據(jù)運(yùn)行情況進(jìn)行適當(dāng)調(diào)整。</p><p>正洗流量：<br/>正洗流量可在25m3/h 左右。</p><p>正洗時(shí)間：<br/>按正洗出水濁度在1度左右, 通常正洗30分鐘左右。</p><p>石英砂及無(wú)煙煤的添加：<br/>由于運(yùn)行摩擦、反洗沖跑，填料層會(huì)逐漸減少，要通過(guò)觀察孔，監(jiān)視填料的變化，大約每半年會(huì)降低100-200mm左右，每半年添加一次。<br/><br/>運(yùn)行管理：<br/>嚴(yán)格執(zhí)行運(yùn)行操作程序說(shuō)明，觀察出水濁度，特別要注意絮凝劑加藥泵是否正常工作。應(yīng)定期校驗(yàn)計(jì)量泵的給藥量是否正確。</p><p><br/></p><p><br/></p></div> <div id="o0u82yaiea" class="inside_newsthree"> <span><a href="/article.html">返回列表</a><a 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