铁矿石选矿工艺技术研�?参数-价格-中国粉体罐�/title>

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} }); function showliuyan(me, showtype){ if(showtype==0){ //$("#Content").val($("#Content").attr('placeholder')); Content= document.getElementById('PopMsgFrom').Content.getAttribute('placeholder'); document.getElementById('PopMsgFrom').Content.value=Content; } if(showtype==1){ // $("#Content").val($(me).text()); alert($(me).text()); document.getElementById('PopMsgFrom').Content.value=$(me).text(); } $(".fxp").css("display","flex"); } function close_popwin(){ $(".fxp").css("display","none"); // 关闭虚拟电话后的留言� $(".dhxj").css("display","none"); $(".dhxjbox").css("display", "none"); $(".dhxjbox2").css("display", "none"); return false; } </script>  <div class="cpjs"> <div class="cpjs_tab"> <div class="js_cpjj" style="border-bottom: 3px solid #1479d7; color: #1479d7;">产品介绍</div> <div class="js_cxd">创新炸�/div> <div class="js_xgfa">相关方案</div> <div class="js_xgzl">相关资料</div> <div class="js_yhpl">用户评论</div> <div class="js_gsdt">公司动�?/div> <div class="js_wsj">问商宵�/div> </div> <script> $(function(){ // 切换 $(".cpjs_tab a").click(function(){ $(".cpjs_tab a").css({"color":"#4F5862","border-bottom-color":"transparent"}); $(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }); }); </script>  <div class="cpjj"> <p style="text-indent: 32px; font-family: Simsun; font-size: medium; white-space: normal;">铁矿石每年剥离的含赤铁矿废石由于铁品位低、可选性差，一直未能得到合理利用。废石堆存在污染矿区及周边生态环境的同时，还存在很大的安全隐患。为减少废石堆存量，本研究进行铁矿废石选矿工艺试验，探索废石资源化利用的途径、�/p><p style="text-indent: 32px; font-family: Simsun; font-size: medium; white-space: normal;">一、试验流程的确定</p><p style="text-indent: 32px; font-family: Simsun; font-size: medium; white-space: normal;">试验矿样中赤铁矿主要呈微细粒嵌布�?0.02mm粒级含量�?6%，磨矿细度为-0.076mm�?5%时，赤铁矿单体解离度也只�?0%，因此要想获得合格精矿，必须细磨；石英呈粗细不均匀嵌布，即粗粒级和微细粒级含量较高，中间粒级含量较低。磨矿细度为-0.076mm�?0%时，石英单体解离度为75%，因此在较粗的磨矿粒度下可提前抛掉部分脉石矿物。针对试样性质，拟采用预选—阶段磨矿—阶段磁选—阴离子反浮选工艺进行选别、�/p><p style="text-indent: 32px; font-family: Simsun; font-size: medium; white-space: normal;">二、试验结果与讨论</p><p style="text-indent: 32px; font-family: Simsun; font-size: medium; white-space: normal;">1、预选试骋�/p><p style="text-indent: 32px; font-family: Simsun; font-size: medium; white-space: normal;">目前粗粒干式强磁预选设备已得到广泛工业应用，而中细粒湿式强磁预选设备仍处于实验室试验阶段。干式预选采用永磁干式强磁选机。湿式预选采用河南红星矿山机器有限公司新研制的中细粒高梯度湿式强磁选机�?*给矿粒度可达6mm�?*背景磁感应强度可�?.3T。采用条件试验确定的**工艺参数进行预选试验。试验流程见�?。预选试验结果表明，采用预选工艺可使试样铁品位�?8.79%提高�?9.25%，同时抛除产率为61.70%、铁品位�?2.30%的尾矿，从而有效提高入磨铁品位、减少入磨量、�/p><p style="text-indent: 32px; font-family: Simsun; font-size: medium; white-space: normal;">2、阶段磨矿—阶段磁选试骋�/p><p style="text-indent: 32px; font-family: Simsun; font-size: medium; white-space: normal;">对一段磨矿细度为-0.076 mm�?5%、磁场强度为159kA/m时，获得的一段弱磁选尾矿进行不同背景磁感应强度的一段高梯度强磁选试验。试验结果表明：随着背景磁感应强度的提高，一段高梯度强磁选精矿铁品位逐渐降低，回收率逐渐提高。综合考虑，选取一段高梯度强磁选背景磁感应强度�?.8T、�/p><p style="text-indent: 32px; font-family: Simsun; font-size: medium; white-space: normal;">废石经永磁干式抛尾—中细粒高梯度湿式强磁选抛尾，获得了铁品位�?9.25%的预选精矿，抛弃铁品位为12.30%、产率为61.70%的废石。预选精矿经两阶段磨矿—阶段磁选，获得了铁品位�?2.71%、回收率�?8.50%的磁选精矿、�/p><p style="text-indent: 32px; font-family: Simsun; font-size: medium; white-space: normal;">河南红星矿山机械厂：</p><p><br/></p> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; font-size: 14px; margin: 10px 0 0; line-height: 26px;"> 暂无数据� </p> </div>  <div class="xgfa"> <div class="xgfa_tit"> <div> <span></span>相关方案 </div> </div> <div class="xgfa_box" style="display: block;"><div style="padding:10px;">暂无相关方案、�/div> </div> </div> <script> $(function(){ // 切换 $(".xgfa_tit_ul li").hover(function(){ $(".xgfa_tit_ul li").css({"color":"#4F5862","border-bottom-color":"transparent"}); 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