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@media (max-width: 767px) { .news-show { padding-top: 35px; padding-bottom: 50px; } } /*/內容頁模板1*/ </style> <div class="nb-nasttp width-1200"> <div class="news-show"> <div class="show-tit"> <h5>市政污泥深度脫水設備脫水有怎樣的工藝流程</h5> <p>2020-12-22</p> </div> <div class="show-nanst"> <p>　　污泥經布料斗均勻送入網帶，污泥隨濾帶向前運行，游離態水在自重作用下通過濾帶流入接水槽，重力脫水也可以說是高度濃縮段，主要作用是高濃縮段，</p><p>　　1.重力濃縮脫水段污泥經布料斗均勻送入網帶，污泥隨濾帶向前運行，游離態水在自重作用下通過濾帶流入接水槽，重力脫水也可以說是高度濃縮段，主要作用是高濃縮段，主要作用是脫去污泥中的自由水，使污泥的流動性減少，為進一步擠壓做準備。</p><p>　　2.楔形區預壓脫水段重力脫水后的污泥流動性幾乎完全喪失，隨著濾帶的向前運行，上下濾帶間距逐漸減少，物料開始受到輕微壓力，并隨著濾帶運行，壓力逐漸變大，楔形區的作用是延長重力脫水時間，增加絮團的擠壓穩定性，為進入壓力區做準備。</p><p>　　3.擠壓輥高壓脫水段料脫離楔形區就進入壓力區，物料在此區內受擠壓，沿濾帶運行方向壓力隨擠壓輥直徑的減少而增加，物料受到擠壓體積收縮，物料內的間隙游離水被擠出，此時，基本形成濾餅，繼續向前至市政污泥深度脫水設備壓力尾部的高壓區經過高壓濾餅的含水量可降至低。</p><p style="text-align: center;"><img title="市政污泥深度脫水設備脫水有怎樣的工藝流程(圖1)" src="http://www.postalesdelsur.net/uploads/allimg/20200302/6b1186ae684e5747e2d67cfe9a387079.jpg" alt="洪城水業-金溪縣污水處理廠生活污泥+工業污泥干化項目"/><br/></p><p>　　滾筒印染污泥干燥機內部結構介紹</p><p>　　印染污泥干燥機的種類有很多，常見的有滾筒式<a href="/" target="_self">污泥干燥</a>機、漿葉式污泥干燥機、振動流化床污泥干燥機等等，有些用戶不太了解干燥機的內部結構和干燥工藝，在類型眾多的烘干設備面前不知如何選擇。接下來，客服以企業常用的滾筒印染污泥干燥機為例，詳細介紹一下滾筒印染污泥干燥機的內部結構。</p><p>　　滾筒印染污泥干燥機，從結構上來分，有“單筒”滾筒印染污泥干燥機和“三筒”滾筒印染污泥干燥機兩種類型。</p><p>　　單筒滾筒印染污泥干燥機是由一個圓筒做為干燥機的主體，圓筒兩端分別是入料端和卸料端，入料端設有燃油、燃汽、燃煤等供熱設備，卸料端設有防塵罩及自動下料裝置。防塵罩通過管道與除塵器相關聯，高溫廢氣經除塵器過濾后排放。由于該設備單級供熱，物料在干燥機筒內直進直出，風量和溫度都不能實現精控，在末端易出現二次返潮，干燥效果不算理想。</p><p>　　“三筒”滾筒印染污泥干燥機，其烘干主體是由三個不同直徑的同心圓鑲嵌而成，所以長度只有“單筒”的三分之一，占地面積小。特殊的“旋耙破碎”裝置、組合式“揚料”系統、科學的內部構造，大大增加了物料與熱風的接觸面積，溫度、風量、風向等參數可根據物料含水率高低調控分配。整個干燥過程可分為1級順流、2級逆流、3級混合流的方式，深層次烘干濕料，加快污泥內部水分蒸發。</p><p>　　污泥烘干機的排氣問題</p><p>　　污泥烘干機在使用過程中會出現兩種形式的排氣，一種是生產過程的水蒸氣的排放，一種是生產過后的廢氣排放。由于污泥烘干機采用的是高溫烘干，所以在烘干過程中會產生大量的熱氣，這兩種的排氣都是為了使<a href="/" target="_self">污泥烘干</a>機能夠正常的作業，減少作業過程中出現的故障的發生。下面小編為大家認識一下這兩種排氣方式。</p><p>　　一、水蒸氣排放。水蒸氣是在烘干污泥的過程，經過高溫處理，將其污泥中的水分蒸發出來，如果蒸發出來的水蒸氣不能及時排放出去，將會使污泥返潮，不利于污泥的烘干?？头勰嗪娓蓹C分為三級烘干模式，每級烘干產生的水蒸氣都是從末端排放出去。</p><p>　　二、廢氣排放。廢氣排放是在烘干結束后，通過引風機將廢氣引入冷凝器、布袋除塵設備、旋風除塵、洗滌塔等相關污泥烘干機配套設備中進行處理，這樣既能凈化廢氣，又能回收廢氣中的粉塵，之后的廢氣達到國家排放標準后，才能對其排放。</p><p><br/></p> </div> <div class="link"> <p><a href="/news/542.html"> 上一篇：回轉滾筒干燥機的性能和工作原理</a></p> <p><a href="/news/549.html"> 下一篇：【市政污泥深度脫水】有怎樣的安全操作規程</a></p> </div> </div> </div> <section class="footer-pc"> <div class="footer-pc-div"> <div class="auixkrtg"> <section class="footer-pc-categ"> <div class="footer-pc-categ-div width width-1200 display-flex-justify"> <article class="footer-pc-tiert footer-pc-tiert2 wow flipInX"> <div class="footer-pc-tiert-nav"> <h3>產品中心</h3> <div class="footer-pc-tiert-nav_sul"> <ul> <li><a href="/product/86.html">除濕熱泵污泥干化機</a></li> <li><a href="/product/87.html">低溫余熱污泥干化機</a></li> <li><a href="/product/88.html">漆渣解粘減排工藝</a></li> <li><a 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