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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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

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

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