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Preparation method of coal-based solid waste cemented filling body
The invention discloses a preparation method of a coal-based solid waste cemented filling body, and belongs to the technical field of filling mining. The coal gangue is used as aggregate and a cementing material, and a small amount of additives and water for stirring are used as auxiliary materials. Firstly, coal gangue stored in a coal mine gangue bin is conveyed into a screening and crushing station to be subjected to coarse and fine two-stage crushing, then crushed gangue particles are screened, and particles used as coarse and fine aggregate particles and particles used for preparing activated gangue powder are obtained respectively; the method comprises the following steps: activating coal gangue powder, mineralized coal gangue particles and water for stirring, uniformly stirring the activated coal gangue powder, the mineralized coal gangue particles and the water for stirring in a stirrer to form coal-based solid waste filling slurry, conveying the uniformly mixed filling slurry to a mining space, and condensing the slurry to form the coal-based solid waste cemented filling body with good bearing performance. The preparation method is simple to operate, green and low-carbon, and has industrial large-scale production conditions.
本发明公开了一种煤基固废胶结充填体制备方法，属充填开采技术领域。用煤矸石作为骨料和胶凝材料，辅以少量外加剂及搅拌用水制备而成。首先将煤矿矸石仓内存放的煤矸石输送至运送到筛分破碎站内进行粗、细两级破碎，再对破碎矸石颗粒进行筛分，分别得到用作粗细骨料颗粒和用于制备活化矸石粉末的颗粒；再将经过活化的煤矸石粉末，矿化煤矸石颗粒和搅拌用水送入搅拌机中搅拌均匀，形成煤基固废充填料浆，最后将混合均匀的充填料浆输送到采动空间，料浆凝结后形成具有良好承载性能的煤基固废胶结充填体。制备方法操作简单、绿色低碳、具备工业化大规模产出的条件。
Preparation method of coal-based solid waste cemented filling body
The invention discloses a preparation method of a coal-based solid waste cemented filling body, and belongs to the technical field of filling mining. The coal gangue is used as aggregate and a cementing material, and a small amount of additives and water for stirring are used as auxiliary materials. Firstly, coal gangue stored in a coal mine gangue bin is conveyed into a screening and crushing station to be subjected to coarse and fine two-stage crushing, then crushed gangue particles are screened, and particles used as coarse and fine aggregate particles and particles used for preparing activated gangue powder are obtained respectively; the method comprises the following steps: activating coal gangue powder, mineralized coal gangue particles and water for stirring, uniformly stirring the activated coal gangue powder, the mineralized coal gangue particles and the water for stirring in a stirrer to form coal-based solid waste filling slurry, conveying the uniformly mixed filling slurry to a mining space, and condensing the slurry to form the coal-based solid waste cemented filling body with good bearing performance. The preparation method is simple to operate, green and low-carbon, and has industrial large-scale production conditions.
本发明公开了一种煤基固废胶结充填体制备方法，属充填开采技术领域。用煤矸石作为骨料和胶凝材料，辅以少量外加剂及搅拌用水制备而成。首先将煤矿矸石仓内存放的煤矸石输送至运送到筛分破碎站内进行粗、细两级破碎，再对破碎矸石颗粒进行筛分，分别得到用作粗细骨料颗粒和用于制备活化矸石粉末的颗粒；再将经过活化的煤矸石粉末，矿化煤矸石颗粒和搅拌用水送入搅拌机中搅拌均匀，形成煤基固废充填料浆，最后将混合均匀的充填料浆输送到采动空间，料浆凝结后形成具有良好承载性能的煤基固废胶结充填体。制备方法操作简单、绿色低碳、具备工业化大规模产出的条件。
Preparation method of coal-based solid waste cemented filling body
一种煤基固废胶结充填体制备方法
JU FENG (author) / WANG DONG (author) / XIAO MENG (author) / ZHANG QIANG (author) / NING PAI (author) / WANG TENGFEI (author) / ZHOU TAO (author) / SI LU (author) / WANG YINGBO (author) / XU MENGXIN (author)
2024-07-05
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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