铜钼矿细粒全尾膏体浓度范围确定

doi:10.13722/j.cnki.jrme.2013.1867

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摘要细粒全尾矿沉降浓密困难，制备的膏体浓度决定了其流动性、泌水性及稳定性等指标，是膏体性能好坏的直接体现。为探究工程应用中合适的膏体浓度，采用理论分析、室内试验和相似模拟的手段，从泌水率、饱和度与泌水率、流变学和动态压密4个角度分析细粒全尾矿膏体浓度范围。将分析方法和结论应用于乌山铜钼矿，确定了其膏体浓度范围：从泌水率角度分析为67%～71%；根据泌水率和饱和率理论分析为69.3%～70.9%；从流变学角度分析为70.68%；根据动态压密试验，当耙架转速0.05～0.10 r/min，浓度范围为67.41%～70.73%。从而得到该矿细粒全尾矿膏体浓度建议范围为67%～71%，平均浓度为69%。

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关键词 ：采矿工程, 细粒全尾矿, 膏体浓度, 泌水率, 流变学, 动态压密

Abstract：It is difficult for fine unclassified tailings to be settled and thickened. The concentration of paste directly determines its quality，such as fluidity，bleeding and stability，and is the direct reflection of property of paste. In order to find the reasonable concentration of paste in the engineering application，concentration range was analyzed from the view of bleeding rate，rheology，paste new definition and dynamic compaction by theoretical analysis，laboratory tests and similar simulation test. The method and conclusions were applied to a copper and molybdenum mine，and then the concentration of paste was determined：67%–71% when considering bleeding rate；69.3%–70.9% when considering bleeding rate and saturation rate；70.68% when considering rheology；67.41%–70.73% when considering dynamic compaction when rotational speed was 0.05–0.10 r/min. Then，conclusion can be reached that the recommended concentration range of fine unclassified tailings paste of this mine is 67%–71% with an average of 69%.

Key words： mining engineering fine unclassified tailings concentration of paste bleeding rate rheology dynamic compaction

引用本文:

刘超，王洪江，吴爱祥，王勇. 铜钼矿细粒全尾膏体浓度范围确定[J]. 岩石力学与工程学报, 2015, 34(s1): 3432-3438.
LIU Chao，WANG Hongjiang，WU Aixiang，WANG Yong. DETERMINATION OF CONCENTRATION RANGE OF FINE UNCLASSIFIED TAILINGS PASTE IN COPPER-MOLYBDENUM MINE. , 2015, 34(s1): 3432-3438.

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http://www.rockmech.org/CN/10.13722/j.cnki.jrme.2013.1867 或 http://www.rockmech.org/CN/Y2015/V34/Is1/3432

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