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src="/website/include/FABED9CE04664969B6B296DF11386194.html"></iframe> <!-- 文章 start--> <div class="container"> <div class="enterprise-info-box"> <div class="enterprise-info-category-descr"> <img src="/resource/website/article/Content/img/enterprise-info-category-descr.jpg" /> <a href="/index.html">首页</a> >> <a href="">中矿癄</a> >> <a href="/website/article/1418/index.html">选矿试验及工?/a> >> <a href="/website/article/141820/index.html">有色金属?/a> >> 正文 </div> <div class="enterprise-info-mainbody"> <span id="id" style="display: none;">6954FEAC773F410EB92A0F2205EBFF49</span> <div class="title">N氧化铜矿惔砂分选试验研I?/div> <div class="sub-title">2018-09-21</div> <!-- D start --> <div class="introduction"> 某难选氧化铜矿氧化率?7.29%Q铜品位?.20%Q矿矛_泥量大。采用常规直接Q选获得的回收率较低,回收?3.10%。采用旋器脱惔Q脱泥后泥砂分选,矿惔部分采用螺旋溜槽回收铜,沉砂部分采用选法回收铜。该工艺可获得?2.12%、品?7.01%、回收率75.96%的综合铜_。比直接选品位增加了2.00%Q回收率增加?.86%? </div> <!-- D start --> <!-- 正文 --> <div class="mainbody"> <div style="display:none">AhutCMS:HiddenContent</div> <span id="SwfFileUrl" 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<p>某氧化铜矿氧化率高,矿惔含量大,严重影响选指标。氧化铜矿矿泥对选的不利影响是国内外很多选矿专家、学者的共同认识Q也是氧化铜矿Q选的N之一<sup>[1-3]</sup>。矿泥在一定程度上增大了氧化铜矿Q选的隑ֺQ单一选已较难高效回收氧化率高的复杂氧化铜ѝؓ了综合利用这些铜矿资源,U研工作者逐步LC许多开发利用的新途径Q如新药剂和新工行了大量的研IӞ使氧化铜矿处理技术取得了不少的发展。但是许多成果因技术或l济上的原因未能投入工业生Q特别是一些Q选的药剂研究不能带来直接的经效?sup>[4-7]</sup>。因此,优化选别程、研I新型Q选工艺,特别是处理含泥量高、氧化率高的氧化铜矿。联合工艺的研究Q对于降低氧化铜矿石的选矿成本Q提高选别指标Q具有十分重要的意义?/p> <p>某氧化铜矿山Q前期生产矿x化率高,含惔量大Q原矿直接Q选获得精?品位?1.48%、回收率?7.85%Q精?品位?3.36%、回收率?4.60%Q精?品位13.69%、回收率10.65%。精矿综合回收率?3.10%。采用直接单一选指标较差。因此试验对该含泥量大的氧化铜矿q行了大量试验研IӞ其中旋流器脱泥,泥砂分选的试验Ҏ能显著提高铜选矿指标?/p> <p>1 矿石性质</p> <p>试验样品氧化铜矿的矿x化率高,?7.29%。铜矿物以孔雀矟뀁硅孔雀矛_假孔雀石ؓ丅R脉石矿物以矌、镁铝硅酸盐ZQ绢云母、滑矟뀁钾长石ơ之。矿矛_学成分分析结果见?Q矿石矿物组成分析结果见?Q铜物相分析l果见表3?/p> <p style="text-align: left;">?  矿石化学成分分析l果</p> <table style="border-collapse:collapse;" border="1" bordercolor="#000000" cellspacing="0" cellpadding="0" width="100%"> <tbody> <tr> <td width="7%"> <p align="center">成分</p> </td> <td width="6%"> <p align="center">Cu</p> </td> <td width="7%"> <p align="center">Co</p> </td> <td width="6%"> <p align="center">Fe</p> </td> <td width="6%"> <p align="center">S</p> </td> <td width="7%"> <p align="center">MgO</p> </td> <td width="6%"> <p align="center">CaO</p> </td> <td width="6%"> <p align="center">MnO</p> </td> <td width="7%"> <p align="center">SiO<sub>2</sub></p> </td> <td width="8%"> <p align="center">Al<sub>2</sub>O<sub>3</sub></p> </td> <td width="7%"> <p align="center">TiO<sub>2</sub></p> </td> <td width="6%"> <p>C</p> </td> <td width="6%"> <p>P<sub>2</sub>O<sub>5</sub></p> </td> <td width="6%"> <p align="center">K<sub>2</sub>O</p> </td> </tr> <tr> <td width="7%"> <p align="center">w/%</p> </td> <td width="6%"> <p>4.20</p> </td> <td width="7%"> <p>0.041</p> </td> <td width="6%"> <p>2.22</p> </td> <td width="6%"> <p>0.038</p> </td> <td width="7%"> <p>7.32</p> </td> <td width="6%"> <p>0.10</p> </td> <td width="6%"> <p align="center">0.86</p> </td> <td width="7%"> <p align="center">60.64</p> </td> <td width="8%"> <p align="center">9.19</p> </td> <td width="7%"> <p align="center">0.55</p> </td> <td width="6%"> <p>0.49</p> </td> <td width="6%"> <p>0.36</p> </td> <td width="6%"> <p align="center">2.14</p> </td> </tr> </tbody> </table> <p> </p> <p style="text-align: left;">?  矿石主要矿物l成分析l果 /%</p> <table style="border-collapse:collapse;" border="1" bordercolor="#000000" cellspacing="0" cellpadding="0"> <tbody> <tr> <td> <p align="center">矿物</p> <p align="center">名称</p> </td> <td> <p align="center">孔雀?/p> </td> <td> <p align="center">孔</p> <p align="center">雀?/p> </td> <td> <p align="center">假孔</p> <p align="center">雀?/p> </td> <td> <p align="center">辉铜?/p> </td> <td> <p align="center">含铜?/p> <p align="center">混合?/p> </td> <td> <p align="center">褐铁</p> <p align="center">?/p> </td> <td> <p align="center">??/p> <p align="center">铁矿</p> </td> <td> <p align="center">矌</p> </td> <td> <p align="center">镁铝?/p> <p align="center">酸盐</p> </td> <td> <p align="center">滑石</p> </td> <td> <p>N</p> <p>?/p> </td> <td> <p>l云?/p> </td> <td> <p align="center">l惔?/p> </td> <td> <p>?/p> <p>?/p> </td> </tr> <tr> <td> <p align="center">相对</p> <p align="center">含量</p> </td> <td> <p>6.28</p> </td> <td> <p>1.67</p> </td> <td> <p>0.84</p> </td> <td> <p>0.05</p> </td> <td> <p>0.28</p> </td> <td> <p>1.87</p> </td> <td> <p align="center">0.89</p> </td> <td> <p align="center">50.92</p> </td> <td> <p align="center">11.98</p> </td> <td> <p align="center">3.48</p> </td> <td> <p>7.72</p> </td> <td> <p>8.97</p> </td> <td> <p align="center">2.35</p> </td> <td> <p>2.70</p> </td> </tr> </tbody> </table> <p> </p> <p style="text-align: left;">?  铜物相分析结?/p> <table style="border-collapse:collapse;" border="1" bordercolor="#000000" cellspacing="0" cellpadding="0"> <tbody> <tr> <td valign="top"> <p align="center">相别</p> </td> <td valign="top"> <p align="center">wQCuQ?%</p> </td> <td valign="top"> <p align="center">分布?%</p> </td> </tr> <tr> <td valign="top"> <p align="center">自由氧化?/p> </td> <td valign="top"> <p align="center">3.89</p> </td> <td valign="bottom"> <p align="center">92.53 </p> </td> </tr> <tr> <td valign="top"> <p align="center">l合氧化?/p> </td> <td valign="top"> <p align="center">0.20</p> </td> <td valign="bottom"> <p align="center">4.76 </p> </td> </tr> <tr> <td valign="top"> <p align="center">化?/p> </td> <td valign="top"> <p align="center">0.114</p> </td> <td valign="bottom"> <p align="center">2.71 </p> </td> </tr> <tr> <td valign="top"> <p align="center">总铜</p> </td> <td valign="top"> <p align="center">4.204</p> </td> <td valign="bottom"> <p align="center">100</p> </td> </tr> </tbody> </table> 2旋流器脱泥试?<p>试验采用的旋器型号为FX150-PU-BQ入料压?.2MPa。旋器l料矿浆度29.78%Q?400目含?9.76%Q根据旋器不同溢流口Do与沉砂口Dsl合Q确定试验旋器的溢口与沉砂口直径比,以达到获得不同旋器溢流产率Q矿泥率)的目的。旋器E_后分别对l矿、沉砂、溢样品取P对取得的样品分别q行U重Q过滤,烘干Q筛析,计算细度及脱惔产率Q旋器脱惔试验l果见表4?</p> <p style="text-align: left;">? 旋流器脱泥试验结?/p> <table style="border-collapse:collapse;" border="1" bordercolor="#000000" cellspacing="0" cellpadding="0"> <tbody> <tr> <td width="223" nowrap=""> <p align="center">直径比(溢流口,沉砂口直?mmQ?/p> </td> <td width="86" nowrap=""> <p align="center">沉砂产率/%</p> </td> <td width="86" nowrap=""> <p align="center">矿惔产率/%</p> </td> </tr> <tr> <td width="223" nowrap=""> <p align="center">0.60QDo=50,Ds=30Q?/p> </td> <td width="86" nowrap=""> <p align="center">80.95</p> </td> <td width="86" nowrap=""> <p align="center">19.05</p> </td> </tr> <tr> <td width="223" nowrap=""> <p align="center">0.67QDo=45,Ds=30Q?/p> </td> <td width="86" nowrap=""> <p align="center">86.91</p> </td> <td width="86" nowrap=""> <p align="center">13.09</p> </td> </tr> <tr> <td width="223" nowrap=""> <p align="center">0.76QDo=45,Ds=34Q?/p> </td> <td width="86" nowrap=""> <p align="center">90.89</p> </td> <td width="86" nowrap=""> <p align="center">9.11</p> </td> </tr> </tbody> </table> <p align="center"> </p> <p>从表4可知QFX150-PU-B旋流器脱泥率具有明昄梯度Q脱泥率分别ؓ19.05%Q?3.09%?.11%。ؓq一步确定旋器脱惔效果及指标,Ҏ器入料及品物料取P开展激光粒度全_分析Q确?10μm?20μm含量Q其l果见表5?/p> <p style="text-align: left;">? 旋流器各产品_度定l果</p> <table style="border-collapse:collapse;" border="1" bordercolor="#000000" cellspacing="0" cellpadding="0"> <tbody> <tr> <td nowrap="" rowspan="2"> <p align="center">直径?/p> <p align="center">Q溢口Q沉砂口直径/mmQ?/p> </td> <td nowrap="" colspan="2"> <p align="center">溢流/%</p> </td> <td colspan="2" valign="top"> <p align="center">沉砂/%</p> </td> <td colspan="2" valign="top"> <p align="center">脱惔?%</p> </td> </tr> <tr> <td nowrap=""> <p align="center">-10um</p> </td> <td nowrap=""> <p align="center">-20um</p> </td> <td valign="top"> <p align="center">-10um</p> </td> <td valign="top"> <p align="center">-20um/</p> </td> <td width="62" valign="top"> <p align="center">-10um</p> </td> <td width="71" valign="top"> <p align="center">-20um</p> </td> </tr> <tr> <td nowrap=""> <p align="center">0.60QDo=50,Ds=30Q?/p> </td> <td nowrap=""> <p align="center">70.26</p> </td> <td nowrap=""> <p align="center">90.23</p> </td> <td valign="top"> <p align="center">5. 2</p> </td> <td valign="top"> <p align="center">7.1</p> </td> <td width="62" valign="top"> <p align="center">59.18</p> </td> <td width="71" valign="top"> <p align="center">56.90</p> </td> </tr> <tr> <td nowrap=""> <p align="center">0.67QDo=45,Ds=30Q?/p> </td> <td nowrap=""> <p align="center">73.78</p> </td> <td nowrap=""> <p align="center">92.09</p> </td> <td valign="top"> <p align="center">10.5</p> </td> <td valign="top"> <p align="center">17.23</p> </td> <td width="62" valign="top"> <p align="center">52.47</p> </td> <td width="71" valign="top"> <p align="center">49.65</p> </td> </tr> <tr> <td nowrap=""> <p align="center">0.76QDo=45,Ds=34Q?/p> </td> <td nowrap=""> <p align="center">76.24</p> </td> <td nowrap=""> <p align="center">92.89</p> </td> <td valign="top"> <p align="center">13.2</p> </td> <td valign="top"> <p align="center">20.7</p> </td> <td width="62" valign="top"> <p align="center">48.38</p> </td> <td width="71" valign="top"> <p align="center">46.68</p> </td> </tr> </tbody> </table> <p> </p> <p>p5可知QFX150-PU-B旋流器在沉砂口直径与溢流口直径不同的情况下获得不同的脱惔率,当溢口直径50mmQ沉砂口直径30mmӞ此时沉砂口直径与溢流口直径比?.6Q旋器获得?0μm脱惔率ؓ59.18%Q?0μm的脱泥率?6.90%Q当溢流口直?5mmQ沉砂口直径30mmӞ此时沉砂口直径与溢流口直径比?.67Q旋器获得?0μm脱惔率ؓ52.47%Q?0μm的脱泥率?9.65%Q当溢流口直?5mmQ沉砂口直径34mmӞ此时沉砂口直径与溢流口直径比?.76Q旋器获得?0μm脱惔率ؓ48.38%Q?0μm的脱泥率?6.68%Q?/p> <p>旋流器的沉砂口与溢流口直径比g同时获得溢流和沉砂金属分布情况见??/p> <p style="text-align: left;">? 旋流器脱泥分属分配率l果 /%</p> <table style="border-collapse:collapse;" border="1" bordercolor="#000000" cellspacing="0" cellpadding="0"> <tbody> <tr> <td> <p align="center">直径?/p> <p>Q溢口Q沉砂口直径/mmQ?/p> </td> <td> <p>产品名称</p> </td> <td> <p>产率</p> </td> <td> <p>铜品?/p> </td> <td> <p>铜金属分配率</p> </td> </tr> <tr> <td rowspan="3"> <p align="center">0.60QDo=50,Ds=30Q?/p> </td> <td> <p>溢流</p> </td> <td> <p align="center">9.11 </p> </td> <td> <p align="center">5.45 </p> </td> <td> <p align="center">11.61 </p> </td> </tr> <tr> <td> <p>沉砂</p> </td> <td> <p align="center">90.89 </p> </td> <td> <p align="center">4.16 </p> </td> <td> <p align="center">88.39 </p> </td> </tr> <tr> <td> <p>原矿</p> </td> <td> <p align="center">100.0 </p> </td> <td> <p align="center">4.28 </p> </td> <td> <p align="center">100.0 </p> </td> </tr> <tr> <td rowspan="3"> <p align="center">0.67QDo=45,Ds=30Q?/p> </td> <td> <p>溢流</p> </td> <td> <p align="center">13.09 </p> </td> <td> <p align="center">5.42 </p> </td> <td> <p align="center">16.60 </p> </td> </tr> <tr> <td> <p></p> </td> <td> <p align="center">86.91 </p> </td> <td> <p align="center">4.10 </p> </td> <td> <p align="center">83.40 </p> </td> </tr> <tr> <td> <p>合计</p> </td> <td> <p align="center">100.0 </p> </td> <td> <p align="center">4.27 </p> </td> <td> <p align="center">100.0 </p> </td> </tr> <tr> <td rowspan="3"> <p>0.76QDo=45,Ds=34Q?/p> </td> <td> <p>溢流</p> </td> <td> <p align="center">19.05 </p> </td> <td> <p align="center">5.14 </p> </td> <td> <p align="center">22.87 </p> </td> </tr> <tr> <td> <p></p> </td> <td> <p align="center">80.95 </p> </td> <td> <p align="center">4.08 </p> </td> <td> <p align="center">77.13 </p> </td> </tr> <tr> <td> <p>合计</p> </td> <td> <p align="center">100.0 </p> </td> <td> <p align="center">4.28 </p> </td> <td> <p align="center">100.00</p> </td> </tr> </tbody> </table> <p>p6的试验结果可以得同,随着沉砂口与溢流口直径的比值加大,旋流器的溢流Q矿泥)产率明显增加Q但铜品位相差不大,使得溢流部分的金属分布率明显增加?/p> <p>旋流器矿泥率的增加Q得铜金铜分布率在矿惔中加大,且这部分铜品位比原矿高,仍有5%以上Q不能直接排臛_矿中Qؓ了铜矿资源的利用Q这部分矿惔需要处理,以达到铜矿资源效益最大化?/p> 3 选矿试验 3.1 原矿直接选试?<p>原矿l过条g优化Q直接Q选闭路试验流E见?Q试验结果见??/p> <p align="center"><img src="/ewebeditor/uploadfile/20180921094929265001.png" style="width: 450px; height: 593px;"></p> <p align="center">? 选闭路流E?/p> <p style="text-align: left;">? 原矿直接选试验结?nbsp; /%</p> <table style="border-collapse:collapse;" border="1" bordercolor="#000000" cellspacing="0" cellpadding="0" width="47%"> <tbody> <tr> <td width="27%"> <p>产品名称</p> </td> <td width="24%"> <p>产率</p> </td> <td width="24%"> <p>铜品?/p> </td> <td width="24%"> <p>铜回收率</p> </td> </tr> <tr> <td width="27%"> <p>_1</p> </td> <td width="24%"> <p>6.35</p> </td> <td width="24%"> <p>31.48</p> </td> <td width="24%"> <p>47.85</p> </td> </tr> <tr> <td width="27%"> <p>_2</p> </td> <td width="24%"> <p>2.61</p> </td> <td width="24%"> <p>23.36</p> </td> <td width="24%"> <p>14.60</p> </td> </tr> <tr> <td width="27%"> <p>_3</p> </td> <td width="24%"> <p>3.25</p> </td> <td width="24%"> <p>13.69</p> </td> <td width="24%"> <p>10.65</p> </td> </tr> <tr> <td width="27%"> <p>l合_</p> </td> <td width="24%"> <p>12.21</p> </td> <td width="24%"> <p>25.01</p> </td> <td width="24%"> <p>73.10</p> </td> </tr> <tr> <td width="27%"> <p></p> </td> <td width="24%"> <p>87.79</p> </td> <td width="24%"> <p>1.28</p> </td> <td width="24%"> <p>26.90</p> </td> </tr> <tr> <td width="27%"> <p>合计</p> </td> <td width="24%"> <p>100</p> </td> <td width="24%"> <p>4.18</p> </td> <td width="24%"> <p>100</p> </td> </tr> </tbody> </table> <p> </p> <p>原矿直接选,可获得精?品位?1.48%Q回收率?7.85%Q精?品位?3.36%Q回收率?4.60%Q精?品位13.69%Q回收率10.65%。综合精矿?2.21%、品?5.01%、回收率73.10%?/p> <p align="center"> </p> 3.2 泥矿分?3.2.1  矿惔?<p>矿惔选试验采用两ơ粗选流E,药剂l过{选优化后Q得到的不同脱惔产率的矿泥Q选试验结果见??/p> <p style="text-align: left;">? 矿惔选试验结?nbsp; /%</p> <table style="border-collapse:collapse;" border="1" bordercolor="#000000" cellspacing="0" cellpadding="0" width="368"> <tbody> <tr> <td width="72"> <p>脱惔产率</p> </td> <td width="72"> <p>产品名称</p> </td> <td width="60"> <p>产率</p> </td> <td width="75"> <p>铜品?/p> </td> <td width="89"> <p>铜回收率</p> </td> </tr> <tr> <td width="72" rowspan="4"> <p>9.11</p> </td> <td width="72"> <p>氧精1</p> </td> <td width="60"> <p>1.76</p> </td> <td width="75"> <p>9.34</p> </td> <td width="89"> <p>3.04</p> </td> </tr> <tr> <td width="72"> <p>氧精2</p> </td> <td width="60"> <p>2.11</p> </td> <td width="75"> <p>9.71</p> </td> <td width="89"> <p>3.80</p> </td> </tr> <tr> <td width="72"> <p></p> </td> <td width="60"> <p>96.13</p> </td> <td width="75"> <p>5.23</p> </td> <td width="89"> <p>93.16</p> </td> </tr> <tr> <td width="72"> <p>合计</p> </td> <td width="60"> <p>100.00</p> </td> <td width="75"> <p>5.40</p> </td> <td width="89"> <p>100.00</p> </td> </tr> <tr> <td width="72" rowspan="4"> <p>13.09</p> </td> <td width="72"> <p>氧精1</p> </td> <td width="60"> <p>2.00</p> </td> <td width="75"> <p>9.61</p> </td> <td width="89"> <p>3.57</p> </td> </tr> <tr> <td width="72"> <p>氧精2</p> </td> <td width="60"> <p>2.53</p> </td> <td width="75"> <p>10.01</p> </td> <td width="89"> <p>4.71</p> </td> </tr> <tr> <td width="72"> <p></p> </td> <td width="60"> <p>95.48</p> </td> <td width="75"> <p>5.16</p> </td> <td width="89"> <p>91.72</p> </td> </tr> <tr> <td width="72"> <p>合计</p> </td> <td width="60"> <p>100.00</p> </td> <td width="75"> <p>5.37</p> </td> <td width="89"> <p>100.00</p> </td> </tr> <tr> <td width="72" rowspan="4"> <p>19.05</p> </td> <td width="72"> <p>氧精1</p> </td> <td width="60"> <p>1.54</p> </td> <td width="75"> <p>8.15</p> </td> <td width="89"> <p>2.31</p> </td> </tr> <tr> <td width="72"> <p>氧精2</p> </td> <td width="60"> <p>1.65</p> </td> <td width="75"> <p>8.94</p> </td> <td width="89"> <p>2.73</p> </td> </tr> <tr> <td width="72"> <p></p> </td> <td width="60"> <p>96.81</p> </td> <td width="75"> <p>5.32</p> </td> <td width="89"> <p>94.96</p> </td> </tr> <tr> <td width="72"> <p>合计</p> </td> <td width="60"> <p>100.00</p> </td> <td width="75"> <p>5.42</p> </td> <td width="89"> <p>100.00</p> </td> </tr> </tbody> </table> <p>    p8可知Q旋器脱惔后,矿惔单独选效果差Q铜基本损失在尾矿中?/p> 3.2.2  矿惔重?<p>׃含惔量大Q矿泥直接Q选,选效果差Q采用螺旋溜槽重选,对不同脱泥率的旋流器溢进行重选试验,可获得合格的铜精矿品,l果见表9?/p> <p style="text-align: left;">? 矿惔溜槽重选试验结?nbsp; /%</p> <table style="border-collapse:collapse;" border="1" bordercolor="#000000" cellspacing="0" cellpadding="0" width="390"> <tbody> <tr> <td width="82"> <p>脱惔产率</p> </td> <td width="72"> <p>产品名称</p> </td> <td width="72"> <p>产率</p> </td> <td width="79"> <p>铜品?/p> </td> <td width="85"> <p>铜回收率</p> </td> </tr> <tr> <td width="82" rowspan="4"> <p align="center">9.11</p> </td> <td width="72"> <p align="center">溜槽_</p> </td> <td width="72"> <p align="center">17.44</p> </td> <td width="79"> <p align="center">13.17</p> </td> <td width="85"> <p align="center">42.01</p> </td> </tr> <tr> <td width="72"> <p align="center">溜槽</p> </td> <td width="72"> <p align="center">82.56</p> </td> <td width="79"> <p align="center">3.84</p> </td> <td width="85"> <p align="center">57.99</p> </td> </tr> <tr> <td width="72"></td> <td width="72"></td> <td width="79"></td> <td width="85"></td> </tr> <tr> <td width="72"> <p align="center">矿惔</p> </td> <td width="72"> <p align="center">100.00</p> </td> <td width="79"> <p align="center">5.47</p> </td> <td width="85"> <p align="center">100.00</p> </td> </tr> <tr> <td width="82" rowspan="3"> <p align="center">13.09</p> </td> <td width="72"> <p align="center">溜槽_</p> </td> <td width="72"> <p align="center">16.53</p> </td> <td width="79"> <p align="center">14.50</p> </td> <td width="85"> <p align="center">43.05</p> </td> </tr> <tr> <td width="72"> <p align="center">溜槽</p> </td> <td width="72"> <p align="center">82.56</p> </td> <td width="79"> <p align="center">3.84</p> </td> <td width="85"> <p align="center">56.95</p> </td> </tr> <tr> <td width="72"> <p align="center">矿惔</p> </td> <td width="72"> <p align="center">100.00</p> </td> <td width="79"> <p align="center">5.57</p> </td> <td width="85"> <p align="center">100.00</p> </td> </tr> <tr> <td width="82" rowspan="3"> <p align="center">19.05</p> </td> <td width="72"> <p align="center">溜槽_</p> </td> <td width="72"> <p align="center">17.10</p> </td> <td width="79"> <p align="center">14.61</p> </td> <td width="85"> <p align="center">44.07</p> </td> </tr> <tr> <td width="72"> <p align="center">溜槽</p> </td> <td width="72"> <p align="center">82.56</p> </td> <td width="79"> <p align="center">3.84</p> </td> <td width="85"> <p align="center">55.93</p> </td> </tr> <tr> <td width="72"> <p align="center">矿惔</p> </td> <td width="72"> <p align="center">100.00</p> </td> <td width="79"> <p align="center">5.67</p> </td> <td width="85"> <p align="center">100.00</p> </td> </tr> </tbody> </table> <p> </p> <p>p9可知Q经q螺旋溜槽可获得品位13.17%~14.61%、回收率42.01%~44.07%的精ѝ?/p> 3.3  矿砂选试?<p>旋流器沉砂Q选闭路流E如?的Q选部分,试验l果见表10?/p> <p style="text-align: left;">?0 沉砂选试验结?nbsp; /%</p> <table style="border-collapse:collapse;" border="1" bordercolor="#000000" cellspacing="0" cellpadding="0" width="360"> <tbody> <tr> <td width="72"> <p align="center">脱惔产率</p> </td> <td width="78"> <p align="center">产品名称</p> </td> <td width="73" colspan="2"> <p align="center">产率</p> </td> <td width="65"> <p align="center">铜品?/p> </td> <td width="72" colspan="2"> <p align="center">铜回收率</p> </td> </tr> <tr> <td width="72" rowspan="5"> <p align="center">9.11</p> </td> <td width="78"> <p align="center">氧精1</p> </td> <td width="73" colspan="2"> <p align="center">6.5</p> </td> <td width="65"> <p align="center">40.04</p> </td> <td width="72" colspan="2"> <p align="center">62.07</p> </td> </tr> <tr> <td width="78"> <p align="center">氧精2</p> </td> <td width="73" colspan="2"> <p align="center">2.44</p> </td> <td width="65"> <p align="center">16.94</p> </td> <td width="72" colspan="2"> <p align="center">9.86</p> </td> </tr> <tr> <td width="78"> <p align="center">氧精3</p> </td> <td width="73" colspan="2"> <p align="center">2.65</p> </td> <td width="65"> <p align="center">13.4</p> </td> <td width="72" colspan="2"> <p align="center">8.47</p> </td> </tr> <tr> <td width="79" colspan="2"> <p align="center"></p> </td> <td width="72"> <p align="center">88.41</p> </td> <td width="65"> <p align="center">0.93</p> </td> <td width="72" colspan="2"> <p align="center">19.61</p> </td> </tr> <tr> <td width="79" colspan="2"> <p align="center">合计</p> </td> <td width="72"> <p align="center">100.0</p> </td> <td width="65"> <p align="center">4.19</p> </td> <td width="72" colspan="2"> <p align="center">100.0</p> </td> </tr> <tr> <td width="72" rowspan="5"> <p align="center">13.09</p> </td> <td width="79" colspan="2"> <p align="center">氧精1</p> </td> <td width="72"> <p align="center">7.74</p> </td> <td width="65"> <p align="center">36.85</p> </td> <td width="72" colspan="2"> <p align="center">68.52</p> </td> </tr> <tr> <td width="79" colspan="2"> <p align="center">氧精2</p> </td> <td width="72"> <p align="center">2.48</p> </td> <td width="65"> <p align="center">17.93</p> </td> <td width="72" colspan="2"> <p align="center">10.68</p> </td> </tr> <tr> <td width="79" colspan="2"> <p align="center">氧精3</p> </td> <td width="72"> <p align="center">1.3</p> </td> <td width="65"> <p align="center">12.15</p> </td> <td width="72" colspan="2"> <p align="center">3.79</p> </td> </tr> <tr> <td width="79" colspan="2"> <p align="center"></p> </td> <td width="72"> <p align="center">88.48</p> </td> <td width="66" colspan="2"> <p align="center">0.8</p> </td> <td width="71"> <p align="center">17.0</p> </td> </tr> <tr> <td width="79" colspan="2"> <p align="center">合计</p> </td> <td width="72"> <p align="center">100.0</p> </td> <td width="66" colspan="2"> <p align="center">4.16</p> </td> <td width="71"> <p align="center">100.0</p> </td> </tr> <tr> <td width="72" rowspan="5"> <p align="center">19.05</p> </td> <td width="79" colspan="2"> <p align="center">氧精1</p> </td> <td width="72"> <p align="center">7.67</p> </td> <td width="65"> <p align="center">40.66</p> </td> <td width="72" colspan="2"> <p align="center">75.62</p> </td> </tr> <tr> <td width="78"> <p align="center">氧精2</p> </td> <td width="73" colspan="2"> <p align="center">1.57</p> </td> <td width="65"> <p align="center">25.3</p> </td> <td width="72" colspan="2"> <p align="center">9.63</p> </td> </tr> <tr> <td width="78"> <p align="center">氧精3</p> </td> <td width="73" colspan="2"> <p align="center">1.14</p> </td> <td width="65"> <p align="center">10.7</p> </td> <td width="72" colspan="2"> <p align="center">2.90</p> </td> </tr> <tr> <td width="78"> <p align="center"></p> </td> <td width="73" colspan="2"> <p align="center">89.62</p> </td> <td width="65"> <p align="center">0.63</p> </td> <td width="72" colspan="2"> <p align="center">14.75</p> </td> </tr> <tr> <td width="78"> <p align="center">合计</p> </td> <td width="73" colspan="2"> <p align="center">100.0</p> </td> <td width="65"> <p align="center">4.20</p> </td> <td width="72" colspan="2"> <p align="center">100.0</p> </td> </tr> <tr height="0"> <td width="72"></td> <td width="78"></td> <td width="1"></td> <td width="72"></td> <td width="65"></td> <td width="2"></td> <td width="71"></td> </tr> </tbody> </table> <p> </p> <p>p10得知Q沉砂Q选由于矿泥已l部分脱除,_1的品位明显提高,从不脱惔?1.48%提高?0%左右。ƈ随着脱惔产率的增加,沉砂选作业回收率提高显著。同时药剂用量明N低,快Q作业化钠用量由2500g/t降到1600g/tQ黄药由200g/t降到160g/t。同时后l粗选、扫选作业的药剂均有降低?/p> 3.4 全流E试?<p>q泥单独重选试验结果可知,采用螺旋溜槽重选后Q可回收品位13.17%、回收率4.86%的精矿品。因此全程采用原矿旋流器脱泥—矿泥重选—沉砂Q选的联合工艺。由于随着脱惔产率的增加,矿惔中铜的损׃在增加,脱惔后沉砂的选,效果都较好,全流E试验选择矿惔脱除ȝ?.11%Q试验流见图2Q试验结果见?1?/p> <p style="text-align: left;">?1 全流E试验结?/p> <table style="border-collapse:collapse;" border="1" bordercolor="#000000" cellspacing="0" cellpadding="0" width="348"> <tbody> <tr> <td width="125"> <p align="center">产品名称</p> </td> <td width="72"> <p align="center">产率</p> </td> <td width="72"> <p align="center">铜品?/p> </td> <td width="79"> <p align="center">铜回收率</p> </td> </tr> <tr> <td width="125"> <p align="center">溜槽_</p> </td> <td width="72" valign="bottom"> <p align="center">1.59</p> </td> <td width="72" valign="bottom"> <p align="center">13.17</p> </td> <td width="79" valign="bottom"> <p align="center">4.86</p> </td> </tr> <tr> <td width="125"> <p align="center">_1</p> </td> <td width="72" valign="bottom"> <p align="center">5.91</p> </td> <td width="72" valign="bottom"> <p align="center">40.04</p> </td> <td width="79" valign="bottom"> <p align="center">54.91</p> </td> </tr> <tr> <td width="125"> <p align="center">_2</p> </td> <td width="72" valign="bottom"> <p align="center">2.22</p> </td> <td width="72" valign="bottom"> <p align="center">16.94</p> </td> <td width="79" valign="bottom"> <p align="center">8.73</p> </td> </tr> <tr> <td width="125"> <p align="center">_3</p> </td> <td width="72" valign="bottom"> <p align="center">2.40</p> </td> <td width="72" valign="bottom"> <p align="center">13.4</p> </td> <td width="79" valign="bottom"> <p align="center">7.46</p> </td> </tr> <tr> <td width="125"> <p align="center">l合_</p> </td> <td width="72" valign="bottom"> <p align="center">12.12</p> </td> <td width="72" valign="bottom"> <p align="center">27.01</p> </td> <td width="79" valign="bottom"> <p align="center">75.96</p> </td> </tr> <tr> <td width="125"> <p align="center">溜槽</p> </td> <td width="72" valign="bottom"> <p align="center">7.52</p> </td> <td width="72" valign="bottom"> <p align="center">3.84</p> </td> <td width="79" valign="bottom"> <p align="center">6.70</p> </td> </tr> <tr> <td width="125"> <p align="center">选尾?/p> </td> <td width="72" valign="bottom"> <p align="center">80.36</p> </td> <td width="72" valign="bottom"> <p align="center">0.93</p> </td> <td width="79" valign="bottom"> <p align="center">17.34</p> </td> </tr> <tr> <td width="125"> <p align="center">原矿</p> </td> <td width="72" valign="bottom"> <p align="center">100.0</p> </td> <td width="72" valign="bottom"> <p align="center">4.31</p> </td> <td width="79" valign="bottom"> <p align="center">100.0</p> </td> </tr> </tbody> </table> <p>p11试验l果可得出,采用联合工艺可获得?2.12%、品?7.01%、回收率75.96%的综合铜_?/p> <p> </p> <p align="center"><img src="/ewebeditor/uploadfile/20180921094929658002.png" style="width: 470px; height: 531px;"></p> <p align="center">? 全流E闭路流E?/p> 3.5 Ҏ分析 <p>原矿直接选时Q由于矿泥含量大QQ选闭路可获得产率12.21%、品?5.01%、回收率73.10%的铜_。原矉K用惔砂分选,矿惔重选、沉砂Q选的工艺程可获得?2.12%、品?7.01%、回收率75.96%的综合铜_?/p> <p>两种工艺ҎQ品位增加了2.00%Q回收率增加?.86%?/p> 4 l??<p>1)N氧化铜矿氧化率辑ֈ97.29%Q品位ؓ4.20%Q铜矿物以孔雀矟뀁硅孔雀矛_假孔雀石ؓ主,含惔量大?/p> <p>2)原矿直接选时回收率低Q综合精矿品位ؓ25.01%Q回收率?3.10%。采用脱泥后泥砂分选,矿惔螺旋槽重选,矿砂选,可获得?2.12%、品?7.01%、回收率75.96%的综合铜_。比直接选品位增加了2.00%Q回收率增加?.86?/p> <p>3Q旋器脱惔后,沉砂选药剂用量明N低?/p> <p> </p> <br> <p></p> <br> <p></p> 作者:龙翼 阙朝?孙忠?张兴勋等Q金矿业集团股份有限公司等Q本文发表于《现代矿业?018q第7?<p></p> <p style="color: rgb(0, 0, 0); font-family: 宋体; font-size: 12px; font-style: normal; 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