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充填料对浮选指标的影响及其消除试验研究
- 黄发波
- 作者单位：
- 山东黄金矿业科技有限公司选冶实验室分公司
基金项目：
- isnull
详细信息：
- 作者简介：
- 黄发波（1973—），男，湖北荆州人，高级工程师，从事选矿技术研究工作；山东省烟台市莱州市金城镇龙埠村888号，山东黄金矿业科技有限公司选冶实验室分公司，261441；E-mail：365206131@qq.com
- 通讯作者：
- isnull
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Effects of filling materials on flotation index and experimental study on their elimination
- English Author：
- Metallurgical Laboratory Branch of Shandong Gold Mining Technology Co.,Ltd.
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
针对山东某金矿浮选作业中混入井下充填料而严重影响浮选泡沫黏度，导致生产指标恶化的问题，结合现场生产特点，在对现有生产工艺不进行较大调整的前提下，通过系统梳理并分析浮选过程中出现的各种现象，从充填料混入比例、添加新型充填料及消除充填料对浮选的影响等方面进行了一系列试验研究。结果表明：无论混入何种充填料，均会对浮选指标及操作产生不利影响，且混入比例超过1.0 %后，对浮选指标的影响显著；添加调整剂硫酸铵、硅酸钠和硫酸亚铁均可一定程度消除充填料的影响，但硫酸铵的效果相对更好，当硫酸铵用量为1 000 g/t时，金回收率为96.1 %，满足生产要求。
关键词:
充填料；矿泥；浮选；调整剂；硅酸钠；硫酸铵
Abstract:
The flotation foam viscosity is seriously affected and the production index is deteriorated by the mixing of underground filling materials in a gold mine in Shandong Province.Based on the characteristics of field production,and systematical sorting and analysis of various phenomena occurring in the flotation process without much adjustment to the existing production process,a series of experiments were carried out from the aspects of mixing proportion of slime and filling material,addition of new type filling material and elimination of the influence of filling material on flotation.The results show that the filling material will impose side effect on the flotation index and operation no matter what kind it is,and with its proportion over 1.0 %,the index is affected in a significant way;the addition of regulator such as ammonium sulfate,sodium silicate and ferrous sulfate can mitigate the influence of filling material to some extent while ammonium sulfate performs better:the recovery of gold is 96.1 % when ammonium sulfate is added at 1 000 g/t,meeting the production requirement.
Keywords:
filling material;ore slime;flotation;regulator;sodium silicate;ammonium sulfate
