Limestone tailing-bricks and preparation method thereof

The invention relates to limestone tailing-bricks and a preparation method thereof, which solves the problem of the maximization comprehensive utilization of the limestone tailings. The preparation method of the limestone tailing-bricks is as follows: dehydrating the limestone tailings and controlli...

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Bibliographische Detailangaben
Hauptverfasser: ZHANG ZHENGWEN, WU CHAOPENG, MAO JINGMIN, GAO DAFENG, LIU JIE, LIU LANG, RAO FAMING, WANG SHUJUAN
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention relates to limestone tailing-bricks and a preparation method thereof, which solves the problem of the maximization comprehensive utilization of the limestone tailings. The preparation method of the limestone tailing-bricks is as follows: dehydrating the limestone tailings and controlling water content thereof to be less than or equal to 15%; again dehydrating and controlling water content thereof to be less than 5%; clearing lumps with grain size larger than or equal to 5 millimeter; blending and controlling silt content to be 20-50% of the total weight; blending the limestone tailings with grain size less than 5 millimeter, the limestone coarse aggregate or the coal ash, and the firming agent; watering and uniformly stirring; controlling the weight percentage of the blended raw materials thereof to be 6-11%; brick making and maintaining. The invention enlarges the raw material source of the brick making, causes the limestone tailings to be fully used, solves the problem of stockpiling occupying