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class="row about-sidebar">  <div class="col-md-9 about-content"> <section class="about-company"> <div class="com"> <h2 class="company-title color-title">行業動態</h2> </div> <div class="arc_pro"> <h1>尾礦干排對金屬礦山的具體價值體現</h1> <div class="arc_body"> <p> <span style="font-size:16px;">　　<strong>尾礦干排</strong>是經由選礦工藝把礦石中的有價物質提取之后的廢渣(既尾礦)通過濃縮脫水工藝，制備成含水率(質量百分比)10%±2的物料后輸送至尾礦庫和排土場堆存或再循環它用的一種工藝方式。</span></p> <p style="text-align: center;"> <span style="font-size:16px;"><img alt="尾礦干排對金屬礦山的具體價值體現" src="/uploads/allimg/180711/2-1PG11100393E.jpg" style="width: 500px; height: 572px;" /></span></p> <p> <span style="font-size:16px;">　　<a href="http://www.8e8lishi.com">尾礦干排</a>的具體價值體現有哪些呢?</span></p> <p> <span style="font-size:16px;">　　1. 尾礦再選</span></p> <p> <span style="font-size:16px;">　　開展尾礦再選，從尾礦中回收有價成分，是提高資源利用率的重要措施。但目前我國尾礦再選整體存在著規模小、技術落后、回收率低、能耗高、成本高等問題。由于缺乏統一的規劃和管理，有的甚至造成嚴重的二次污染，或對尾礦庫安全造成危害。相對來說尾礦干排工藝對工業廢水的回收不僅提高了資源回收率，再次應用于選礦和礦山的開采，也給企業帶來巨大的經濟效益。</span></p> <p> <span style="font-size:16px;">　　2. 尾礦生產建筑材料</span></p> <p> <span style="font-size:16px;">　　尾礦的主要組分是富含SiO2、Al2O3、CaCO3等資源的非金屬礦物，經過<strong>尾礦干排</strong>脫水后呈現出的固體廢料可以通過現有的成熟工藝生產一種或若干種建筑材料。一些尾礦高值利用技術，如尾礦制備微晶玻璃、超耐久性尾礦高強混凝土技術等，已經在關鍵技術和工藝方面取得了突破，有望成為將來大量利用尾礦的有效技術。</span></p> <p> <span style="font-size:16px;">　　3.尾礦用于制作肥料</span></p> <p> <span style="font-size:16px;">　　有些尾礦中含有植物生長所需要的多種微量元素，經過適當處理可制成用于改良土壤的微量元素肥料。上世紀90 年代馬鞍山礦山研究院將磁化尾礦加入到化肥中制成磁化尾礦復合肥，并建成一座年產1 萬噸的磁化尾礦復合肥廠，起到了變廢為寶的效果。</span></p> <p> <span style="font-size:16px;">　　4.充填礦山采空區</span></p> <p> <span style="font-size:16px;">　　礦山采空區回填是直接利用尾礦行之有效的途徑之一。尤其對于無處設置尾礦庫的礦山企業，利用尾礦回填采空區就具有更大的環境和經濟意義。膠結充填采礦法目前已屬于成熟技術。理想的膠結充填采礦法可完全避免地表塌陷和基本避免破壞地下水平衡造成重大危害。</span></p> <p> <span style="font-size:16px;">　　5.尾礦庫復墾</span></p> <p> <span style="font-size:16px;">　　尾礦庫復墾是解決尾礦庫表面沙化的重要措施。尾礦庫復墾不僅防止揚沙，而且美化環境，減少污染，兼具經濟效益、社會效益和環境效益。尾礦庫復墾為我國礦山企業廢棄尾礦庫治理探索出了一條經濟、可行的新路子。</span></p> <p> <span style="font-size:16px;">　　我國工業固體廢棄物綜合利用率在60%左右，而金屬尾礦的綜合利用率平均不到10%，大大滯后于其它大宗固體廢棄物。針對金屬尾礦的治理，尾礦干排為解決金屬尾礦的利用起到了提升作用。</span></p> </div> <ul class="arc_bottom"> <li class="left">上一篇：<a href='http://www.8e8lishi.com/news/Professional/256.html'>旋流器常見的修復解決方法</a> </li> <li class="right">下一篇：<a href='http://www.8e8lishi.com/news/Professional/283.html'>國內尾礦干排技術應用現狀及前景預測</a> </li> </ul> </div> </section> </div>  <div class="col-md-3 sidebar left">  <div class="sidebar-blog-categories"> <p>新聞動態</p> <ul class="list_img"> <li><a href="http://www.8e8lishi.com/news/Company/">公司新聞</a></li> <li class=li_cur><a href=http://www.8e8lishi.com/news/Professional/>行業動態</a></li> </ul> </div>  <div class="sidebar-download"> <div class="download-file color-bg"> <dl> <dt>熱線電話：</dt> <dd>0535-6520728</dd> </dl> </div> </div> </div> </div> </div> </main> <footer>  <div class="footer"> <div class="container"> <ul class="foot_ban"> <li><a href="http://www.8e8lishi.com/">網站首頁</a></li> <li><a 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