固廢電鍍污泥的干化處理方式-公司新聞-常州海藍環?？萍加邢薰?/title> <meta name="Keywords" content="固廢電鍍污泥|干化處理方式" > <meta name="Description" content="一、概述電鍍污泥的減量化主要是采用干燥的方法，將含水率為75%左右的電鍍污泥干燥到含水率為10%左右（全干化）或干燥到含水率40%左右（半干化），從而達到減量化的要求，并進行下一步的冶煉和提取其中的鐵、銅、鋅等金屬。電鍍污泥干燥具有以下特點和要求：物…" > <meta http-equiv=X-UA-Compatible content=IE=EmulateIE7> <link href="/template/pc/cn2016/css/top.css" rel="stylesheet" type="text/css" /> <link href="/template/pc/cn2016/css/style.css" rel="stylesheet" type="text/css" /> <script type="text/javascript" src="/template/pc/cn2016/js/jquery-1.8.3.min.js"></script>  <script type="text/javascript" src="/template/pc/cn2016/js/public.js"></script> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> </head> <body> <div style="position:fixed;left:-9000px;top:-9000px;"><nav id="iw0ka"><optgroup id="iw0ka"><object id="iw0ka"></object></optgroup></nav><sup id="iw0ka"></sup><center id="iw0ka"><nav id="iw0ka"><xmp 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傳真：0519-89852518<br/> 網址：www.mlnhj.com<br/> 聯系人：李海彬（先生）<br/> 手機：13813551608 </div> </div> </div> <div class="fr"> <div class="title"><div class="location">當前位置：<a href='/'>首頁</a> > <a href="/list/?3_1.html">新聞資訊</a> > <a href="/list/?30_1.html">公司新聞</a></div><h4>公司新聞</h4></div> <div class="neirong"> <div class="newsdetails"> <h2>固廢電鍍污泥的干化處理方式</h2> <div class="tip">來源：<a href="http://www.mlnhj.com" title="常州海藍環?？萍加邢薰? target="_blank" class="z1">常州海藍環?？萍加邢薰?/a> <span class="time">發布時間：2020-10-29 14:27:50</span> 點擊量：<script src="/inc/zzz_Visits.asp?cid=229"></script></div> <div class="newsdetails"><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;text-indent: 0;white-space: normal;text-align: justify;background: rgb(255, 255, 255)"><b style="list-style: none">一、概述</b></p><p><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)"></b></p><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 37px;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)"><span style="list-style: none;padding: 0px">電鍍污泥的減量化主要是采用干燥的方法，將含水率為</span>75%左右的電鍍污泥干燥到含水率為10%左右（全干化）或干燥到含水率40%左右（半干化），從而達到減量化的要求，并進行下一步的冶煉和提取其中的鐵、銅、鋅等金屬。電鍍污泥干燥具有以下特點和要求：物料發粘，流動性較差；含水率較高，干燥速度慢，能量消耗大；尾氣有異味，需要處理；物料受熱要求均勻，操作環境好，一次性達到指標要求。電鍍污泥由無軸螺旋輸送機定量地連續送入干燥機加料口，物料進入槳葉后，通過槳葉的轉動使物料翻轉、攪拌，不斷改變加熱界面，與器身和槳葉接觸，被充分加熱，使物料所含的表面水分蒸發。同時，物料隨槳葉軸的旋轉成螺旋軌跡向出料口方向輸送，在輸送中繼續攪拌，使物料中滲出的水分繼續蒸發。*后，干燥均勻的合格產品由出料口排出。含有水蒸氣和少量超細固體顆粒的氣體被送往水膜噴淋洗滌塔，濾除的氣體經水冷沉降后被送至污水處理單元。出來的固體物料可直接外運填埋。</b></p><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)"><b style="list-style: none">2.2 設計原則</b></b></p><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)"><span style="list-style: none;padding: 0px">（</span>1）采用高效節能和簡便易行的工藝方法，力求污泥干化系統達到能耗低、投資省、占地少、運行管理方便、污泥干化效率高的目的；</b></p><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)"><span style="list-style: none;padding: 0px">（</span>2）設備、器材及電氣部分采用知名廠家產品，質量有保障；</b></p><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)"><span style="list-style: none;padding: 0px">（</span>3）采用切實可行的技術手段，提高裝備水平，使生產盡可能實現自動化操作，以保證污泥干化系統運行可靠、經濟合理；</b></p><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)"><b style="list-style: none">2.3.2 污泥熱干化工藝方案選型</b></b></p><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)"> 早在20世紀40年代，日本和歐美就已經用直接加熱鼓式干燥器來干燥污泥。經過幾十年的發展，污泥熱干化技術的優點正逐漸顯現出來：</b></p><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)">1）減量化：隨著污泥含水率的降低，污泥體積有較大幅度減??；</b></p><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)">2）穩定化：隨著污泥含水率的降低，污泥的生物活性收到抑制，生物的轉換過程變得極為緩慢或被純粹打破。產品無臭且無病原體，減輕了污泥有關的負面效應，使處理后的污泥更易被接受。污泥會形成顆?；蚍蹱罘€定產品，污泥性狀大大改善。污泥熱干化過程可使具有較強遷移能力的酸溶態金屬以及具有潛在遷移能力的可還原態和可氧化態重金屬向惰性的殘渣態重金屬轉變，從而對污泥中重金屬起到穩定性的作用。</b></p><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)">3）資源化：經過熱干化后的污泥熱值大幅提升，達到自持燃燒的要求。</b></p><h4 style="list-style: none;padding: 0px;line-height: 2.5;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)"><b style="list-style: none"><span style="list-style: none;padding: 0px">所以無論填埋、焚燒、農業利用還是熱能利用，污泥干化都是重要的</span>di一步，這使污泥干化在整個污泥管理體系中扮演越來越重要的角色。20世紀90年代以來，運用污泥干化技術處理城市污泥得到迅速發展。</b><b style="list-style: none"></b></b></h4><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)"><b style="list-style: none"> 間接加熱楔型空心</b><a style="list-style: none;padding: 0px;color: rgb(87, 87, 87);transition: all 0.3s ease-in 0s">槳葉干燥機</a></b></p><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)"><b style="list-style: none"> a.工作原理</b></b></p><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)"><b style="list-style: none"> 可對膏狀、顆粒狀、粉狀、漿狀物料間接加熱或冷卻，可完成干燥、冷卻、加熱、滅菌、反應、低溫煅燒等單元操作。設備中特殊的楔型攪拌傳熱槳葉，具有較高的傳熱效率和傳熱面自清潔功能。</b></b></p><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)"><b style="list-style: none"> 空心軸上密集排列著楔型中空槳葉，熱介質經空心軸流經槳葉。單位有效容積內傳熱面積很大，熱介質溫度從-40℃到320℃，可以是水蒸汽，也可以是液體型：如熱水、導熱油等。間接傳導加熱，沒有攜帶空氣帶走熱量，熱量均用來加熱物料。熱量損失僅為通過器體保溫層向環境的散熱。楔型槳葉傳熱面具有自清潔功能。物料顆粒與楔型面的相對運動產生洗刷作用，能夠洗刷掉楔型面上附著物料，使運轉中一直保持著清潔的傳熱面。<a target="_blank" title="槳葉干燥機" style="list-style: none;padding: 0px;color: rgb(87, 87, 87);transition: all 0.3s ease-in 0s">槳葉干燥機</a>的殼體為W型，殼體內一般安排二到四根空心攪拌軸。殼體有密封端蓋與上蓋，防止物料粉塵外泄及收集物料溶劑蒸汽。出料口處設置一擋扳，保證料位高度，使傳熱面被物料覆蓋而充分發揮作用。傳熱介質通過旋轉接頭，流經殼體夾套及空心攪拌軸，空心攪拌軸依據熱介質的類型而具有不同的內部結構，以保證zui佳的傳熱效果。</b></b></p><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)"><b style="list-style: none"> b.工藝特點</b></b></p><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)"><b style="list-style: none"> ①槳葉干燥機能耗低：由于間接加熱，沒有大量攜帶空氣帶走熱量，干燥器外壁又設置保溫層，對漿狀物料，蒸發1kg水僅需1.2kg水蒸汽。</b></b></p><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)"><b style="list-style: none"> ②槳葉干燥機系統：單位有效容積內擁有巨大的傳熱面，就縮短了處理時間，設備尺寸變小。就極大地減少了建筑面積及建筑空間</b></b></p><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)"><b style="list-style: none"> ③處理物料范圍廣：使用不同熱介質，既可處理熱敏性物料，又可處理需高溫處理的物料。常用介質有：水蒸汽、導熱油、熱水、冷卻水等。既可連續操作也可間歇操作，可在很多領域應用。</b></b></p><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)"><b style="list-style: none"> ④環境污染?。悍蹓m物料夾帶很少。物料溶劑蒸發量很小，便于處理。對有污染的物料或需回收溶劑的工況，可采用閉路循環。</b></b></p><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)"><b style="list-style: none"> ⑤操作費用低：低速攪拌及合理的結構。磨損量小，維修費用很低。</b></b></p><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)"><b style="list-style: none"> ⑥操作穩定：由于楔型槳葉特殊的壓縮--膨脹攪拌作用，使物料顆粒充分與傳熱面接觸，在軸向區間內，物料的溫度、濕度、混合度梯度很小，從而保證了工藝的穩定性。</b></b></p><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)"><b style="list-style: none"> c.缺點</b></b></p><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)"><b style="list-style: none"> 設備傳熱面均有鋼板加工焊接而成，用水蒸氣做熱介質時，設備重量較大，設備一次性投資稍高。</b></b></p><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)"><b style="list-style: none"> d.適用范圍</b></b></p><p style="list-style: none;margin-top: 0px;margin-bottom: 0px;margin-left: 0;padding: 0px;text-indent: 0;text-align: justify"><b deep="3" style="list-style: none;color: rgb(87, 87, 87);font-family: 'Microsoft YaHei', 微軟雅黑;white-space: normal;background-color: rgb(255, 255, 255)"><b style="list-style: none"> 設備一次性投資較高，土建投資低，操作成本只有熱風直接型干燥機的三分之一。對需回收溶劑、易燃易氧化熱敏性物料尤為適應。廣泛用于精細化工、石化、染料行業。</b></b></p><p></p><p><br/></p><br /><br /></div> <p><strong>本文網址：</strong><input type="text" id="text" value="" class="text"><input type="submit" value="復制" onclick="javascript:copynewsURL();" target="_parent"></p><br /> <script type="text/javascript"> var url = location.href; document.getElementById("text").value=url; </script> <script type="text/javascript"> 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