<p><span style="font-family: 微软雅黑,Microsoft YaHei; font-size: 14px;"> 铜硫矿是我国主要的铜矿类型之一。其矿床多属含铜黄铁矿床和含铜矽卡岩矿床,分布较广。如甘肃白银、湖北大冶、安徽铜陵、江西永平;武山、河北等地区都有这类矿床。铜硫矿有致密块状含铜黄铁矿和浸染状含铜黄铁矿两种。前者黄铁矿的含量高,后者黄铁矿的含量低。浮选这种矿石除了回收硫化铜以外,还要回收其中的硫化铁作为硫精矿。</span></p><p style="margin: 0px; padding: 0px; line-height: 25px; clear: both; font-family: "helvetica neue", helvetica, "hiragino sans gb", "microsoft yahei", arial, sans-serif; white-space: pre-wrap; font-stretch: normal;"><br/><span style="font-family: 微软雅黑,Microsoft YaHei; font-size: 14px;"> <br/> </span></p><p class="96wx-bdtc" style="margin: 0px; padding: 0px; color: rgb(62, 62, 62); line-height: 2em; clear: both; font-family: 微软雅黑; border-top-color: rgb(241, 48, 129); border-top-width: 2px; border-top-style: solid; min-height: 1.5em; max-width: 100%; box-sizing: border-box !important;"><span style="margin: 0px; padding: 5px 10px; color: rgb(0, 0, 0); line-height: 28px; font-family: 微软雅黑,Microsoft YaHei; font-size: 14px; display: inline-block; max-width: 100%; box-sizing: border-box !important; background-color: rgb(241, 48, 129);">影响含铜黄铁矿浮选的主要因素有:</span></p><p style="margin: 0px; padding: 0px; clear: both; white-space: pre-wrap;"><br/><span style="font-family: 微软雅黑,Microsoft YaHei; font-size: 14px;"> </span></p><p style="margin: 0px; padding: 0px; line-height: 25px; clear: both; font-family: "helvetica neue", helvetica, "hiragino sans gb", "microsoft yahei", arial, sans-serif; white-space: pre-wrap; font-stretch: normal;"><br/><span style="font-family: 微软雅黑,Microsoft YaHei; font-size: 14px;"> (1)铜、铁硫化物的嵌布粒度和共生关系。一般黄铁矿的嵌布粒度较粗,而铜矿物特别是次生硫化铜矿,与黄铁矿共生密切,要磨到比较细时,才能使铜矿物与黄铁矿解离。可以利用这一特性,选出铜硫混合精矿,废弃尾矿,然后将混合精矿再磨再分离。</span></p><p style="margin: 0px; padding: 0px; line-height: 25px; clear: both; font-family: "helvetica neue", helvetica, "hiragino sans gb", "microsoft yahei", arial, sans-serif; white-space: pre-wrap; font-stretch: normal;"><br/><span style="font-family: 微软雅黑,Microsoft YaHei; font-size: 14px;"> (2)次生硫化铜矿物的影响。次生硫化铜矿物含量高时,矿浆中铜离子增多,会使黄铁矿受到活化,增加铜硫分离的困难。</span></p><p style="margin: 0px; padding: 0px; line-height: 25px; clear: both; font-family: "helvetica neue", helvetica, "hiragino sans gb", "microsoft yahei", arial, sans-serif; white-space: pre-wrap; font-stretch: normal;"><br/><span style="font-family: 微软雅黑,Microsoft YaHei; font-size: 14px;"> (3)磁黄铁矿的影响。磁黄铁矿含量高,会影响硫化铜矿物的浮选。磁黄铁矿氧化,消耗矿浆中的氧,严重时,浮选开始阶段铜矿物不浮。可以加强充气来改善这种情况。</span></p><p style="margin: 0px; padding: 0px; line-height: 25px; clear: both; font-family: "helvetica neue", helvetica, "hiragino sans gb", "microsoft yahei", arial, sans-serif; white-space: pre-wrap; font-stretch: normal;"><br/><span style="font-family: 微软雅黑,Microsoft YaHei; font-size: 14px;"> </span></p><p></p><section></section><p></p><p><span style="font-family: 微软雅黑,Microsoft YaHei; font-size: 14px;"> </span></p><p></p><section><p class="96wx-bdtc" style="margin: 0px; padding: 0px; text-align: left; color: rgb(62, 62, 62); line-height: 2em; clear: both; font-family: 微软雅黑; border-top-color: rgb(241, 48, 129); border-top-width: 2px; border-top-style: solid; min-height: 1.5em; max-width: 100%; box-sizing: border-box !important;"><span style="margin: 0px; padding: 5px 10px; color: rgb(0, 0, 0); font-family: 微软雅黑,Microsoft YaHei; font-size: 14px; display: inline-block; max-width: 100%; box-sizing: border-box !important; background-color: rgb(241, 48, 129);">铜硫矿的浮选流程</span></p><p><span style="font-family: 微软雅黑,Microsoft YaHei; font-size: 14px;"> </span></p></section><p></p><p style="margin: 0px; padding: 0px; line-height: 25px; clear: both; font-family: "helvetica neue", helvetica, "hiragino sans gb", "microsoft yahei", arial, sans-serif; white-space: pre-wrap; font-stretch: normal;"><br/><span style="font-family: 微软雅黑,Microsoft YaHei; font-size: 14px;"> </span></p><p style="margin: 0px; padding: 0px; line-height: 25px; clear: both; font-family: "helvetica neue", helvetica, "hiragino sans gb", "microsoft yahei", arial, sans-serif; white-space: pre-wrap; font-stretch: normal;"><br/><span style="font-family: 微软雅黑,Microsoft YaHei; font-size: 14px;"> 其常用的浮选流程有三种:</span></p><p style="margin: 0px; padding: 0px; line-height: 25px; clear: both; font-family: "helvetica neue", helvetica, "hiragino sans gb", "microsoft yahei", arial, sans-serif; white-space: pre-wrap; font-stretch: normal;"><br/><span style="font-family: 微软雅黑,Microsoft YaHei; font-size: 14px;"> (1)优先浮选。一般是先浮铜,然后再浮硫。致密块状含铜黄铁矿,矿石中黄铁矿的含量相当高,常采用高碱度(游离CaO含量&gt;600-800 g/m3)、高黄药用量的方法浮铜抑制黄铁矿。其尾矿中主要是黄铁矿,脉石很少,所以尾矿便是硫精矿。对于浸染状铜硫矿石,采用优先浮选流程,浮铜后的尾矿要再浮硫,为了降低浮硫时硫酸的消耗及保证安全操作,浮铜时,尽量采用低碱度的工艺条件。</span></p><p style="margin: 0px; padding: 0px; line-height: 25px; clear: both; font-family: "helvetica neue", helvetica, "hiragino sans gb", "microsoft yahei", arial, sans-serif; white-space: pre-wrap; font-stretch: normal;"><br/><span style="font-family: 微软雅黑,Microsoft YaHei; font-size: 14px;"> (2)混合—分离浮选。对于原矿含硫较低,铜矿物易浮的铜硫矿石选用这种流程较有利。铜硫矿物先在弱碱性矿浆中进行混合浮选,混合精矿再加石灰在高碱性矿浆中进行铜硫分离。</span></p><p style="margin: 0px; padding: 0px; line-height: 25px; clear: both; font-family: "helvetica neue", helvetica, "hiragino sans gb", "microsoft yahei", arial, sans-serif; white-space: pre-wrap; font-stretch: normal;"><br/><span style="font-family: 微软雅黑,Microsoft YaHei; font-size: 14px;"> (3)半优先混合一分离浮选。半优先混合一分离浮选是以选择性好的Z-200或OSN-43,醋-105等作为半优先浮铜作业的捕收剂,先浮出易浮的铜矿物,得到部分合格的铜精矿,然后再进行铜硫混合浮选,所得的铜硫混合精矿使用浮铜抑硫的分离浮选。这种分离流程,避免了高石灰用量下对易浮铜矿物的抑制,也不需耗大量硫酸活化黄铁矿。生产实践表明:这种流程结构合理,操作稳定,指标好,具有尽早回收目的矿物的特点。</span></p><p style="margin: 0px; padding: 0px; line-height: 25px; clear: both; font-family: "helvetica neue", helvetica, "hiragino sans gb", "microsoft yahei", arial, sans-serif; white-space: pre-wrap; font-stretch: normal;"><br/><span style="font-family: 微软雅黑,Microsoft YaHei; font-size: 14px;"> 就磨浮流程来说,对于难选铜矿石,采用阶段磨浮流程较为有利,如粗精矿再磨再选,混合精矿再磨再分离,中矿再磨单独处理等方法,广为国内外选厂所采用。</span></p><section><section><section><section></section><section></section></section></section></section><p></p><p><span style="font-family: 微软雅黑,Microsoft YaHei; font-size: 14px;"> </span></p><section><section><section><section><p style="margin: 0px; padding: 0px; text-align: justify; line-height: 30px; text-indent: 2em; clear: both; font-size: 14px; white-space: pre-wrap; -ms-word-wrap: break-word;"><span style="margin: 0px; padding: 0px; font-family: 微软雅黑,Microsoft YaHei; font-size: 14px;">烟台金鹏矿业机械有限公司是一个集选矿试验研究、各类矿山设计、矿山设备制造及安装调试、人员培训为一体的专业化公司,拥有地质、井建、采矿、矿机、选矿、冶炼、土建、电力、总图、给水排水、尾矿、采暖通风、技术经济、概(预)算等十多个各种专业人才。我们将以优质的服务给客户好的体验。</span></p><section><section><section><section></section><section></section><section></section></section><section><section></section></section></section></section></section></section></section></section><p></p><p><br/></p>