A newly built lead-zinc mine adopts a unclassified tailings paste filling method based on the basic conditions of the mine.A specific analysis is conducted on the unclassified tailings paste filling aggregate.The physical and chemical properties,particle size composition,thickening and settling,slurry conveying performance,and strength ratio of the unclassified tailings paste filling aggregate are determined and selected through experiments.Based on the test results,the paper analyzes the process selection of the paste filling station in the mine,as well as main equipment selection,such as thickener,mixing equipment,paste conveying pump and cement bin.
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