针对石槽村煤矿地下水库净化高矿化度矿井水效率低的问题,利用COMSOL数值模拟软件建立矸石淋滤柱数值模型,探究不同粒径级配、入口浓度和入口流速下的淋滤柱内离子迁移特征。结果表明:淋滤柱内矸石粒径级配越大,离子的迁移速度越快,迁移距离越远,矸石的饱和总吸附量越小;淋滤柱入口处离子浓度越大,离子的迁移速度越快,迁移距离越远,矸石的饱和总吸附量越大;淋滤柱入口流速越大,离子的迁移速度越快,迁移距离越远,矸石的吸附速率越大,但不同入口流速下矸石的总吸附量相同。研究结果对提高地下水库净化高矿化度矿井水的效率有一定帮助。

In response to the problem of low efficiency in purifying high mineralization mine water in the underground reservoir of Shicaocun Coal Mine, a numerical model of gangue leaching column is established using COMSOL numerical simulation software to explore the ion migration characteristics inside the leaching column under different particle size gradations, inlet concentrations, and inlet flow velocities. The results show that the larger the particle size gradation of gangue in the leaching column, the faster the migration speed of ions, the farther the migration distance, and the smaller the saturated total adsorption quantity of gangue; The higher the ion concentration at the inlet of the leaching column, the faster the migration speed of ions, the farther the migration distance, and the greater the saturated total adsorption quantity of gangue; The larger the inlet flow velocity of the leaching column, the faster the migration speed of ions, the farther the migration distance, and the larger the adsorption rate of gangue. However, the total adsorption quantity of gangue is the same under different inlet flow velocities. The research results are helpful for improving the efficiency of purifying high mineralization mine water in underground reservoirs.