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Filling slurry optimization method for downward layered filling method mining by using waste rock
The invention discloses a filling slurry optimization method for downward layered filling method mining by using waste rock. The method comprises the following steps: with coarse waste rock aggregateand rod-milled sand as mixed aggregate,; designing mixed filling aggregates with different proportions of waste rock and rod-milled sand, and a test scheme of different gel-sand ratios and slurry concentrations of the mixed filling aggregates to obtain a test result of the strength of the cemented filling body and the fluidity and stability of the filling slurry; conducting stepwise regression analysis on the test data through a quadratic polynomial, and establishing a relation function between the waste rock utilization rate and the mortar ratio, between the waste rock utilization rate and the slurry concentration, between the filling body strength and between the slurry fluidity and stability; establishing a filling material cost model; determining design indexes of the cemented fillingbody; and establishing a filling material multi-objective optimization model, thereby solving the target optimization model to obtain an optimization design. According to the method, the strength of the cemented filling body and the fluidity and stability of the slurry meet the filling mining requirements, the filling material cost is lowest, and the waste rock utilization rate is highest.
本发明公开了一种废石用于下向分层充填法采矿的充填料浆优化方法，其以废石粗骨料与棒磨砂为混合骨料；设计废石和棒磨砂不同配比的混合充填骨料，以及混合充填骨料不同胶砂比和料浆浓度的试验方案，获得胶结充填体强度和充填料浆流动性与稳定性的试验结果；采用二次多项式对试验数据进行逐步回归分析，建立废石利用率与胶砂比、料浆浓度、充填体强度以及料浆流动性与稳定性之间的关系函数；建立充填材料成本模型；确定胶结充填体的设计指标；建立充填材料多目标优化模型；求解目标优化模型，即可得到优化设计。本方法不仅胶结充填体强度、料浆的流动性和稳定性均满足充填采矿要求，而且充填材料成本最低和废石利用率最高。
Filling slurry optimization method for downward layered filling method mining by using waste rock
The invention discloses a filling slurry optimization method for downward layered filling method mining by using waste rock. The method comprises the following steps: with coarse waste rock aggregateand rod-milled sand as mixed aggregate,; designing mixed filling aggregates with different proportions of waste rock and rod-milled sand, and a test scheme of different gel-sand ratios and slurry concentrations of the mixed filling aggregates to obtain a test result of the strength of the cemented filling body and the fluidity and stability of the filling slurry; conducting stepwise regression analysis on the test data through a quadratic polynomial, and establishing a relation function between the waste rock utilization rate and the mortar ratio, between the waste rock utilization rate and the slurry concentration, between the filling body strength and between the slurry fluidity and stability; establishing a filling material cost model; determining design indexes of the cemented fillingbody; and establishing a filling material multi-objective optimization model, thereby solving the target optimization model to obtain an optimization design. According to the method, the strength of the cemented filling body and the fluidity and stability of the slurry meet the filling mining requirements, the filling material cost is lowest, and the waste rock utilization rate is highest.
本发明公开了一种废石用于下向分层充填法采矿的充填料浆优化方法，其以废石粗骨料与棒磨砂为混合骨料；设计废石和棒磨砂不同配比的混合充填骨料，以及混合充填骨料不同胶砂比和料浆浓度的试验方案，获得胶结充填体强度和充填料浆流动性与稳定性的试验结果；采用二次多项式对试验数据进行逐步回归分析，建立废石利用率与胶砂比、料浆浓度、充填体强度以及料浆流动性与稳定性之间的关系函数；建立充填材料成本模型；确定胶结充填体的设计指标；建立充填材料多目标优化模型；求解目标优化模型，即可得到优化设计。本方法不仅胶结充填体强度、料浆的流动性和稳定性均满足充填采矿要求，而且充填材料成本最低和废石利用率最高。
Filling slurry optimization method for downward layered filling method mining by using waste rock
废石用于下向分层充填法采矿的充填料浆优化方法
GUO BIN (author) / LU YANZE (author) / YANG XIAOBING (author) / WEN ZHENJIANG (author) / LI SHENGHUI (author) / YIN SHENGHUA (author) / CHEN YANTING (author) / HU YAJUN (author) / GAO QIAN (author) / TU GUANGFU (author)
2020-05-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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