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A platform for research: civil engineering, architecture and urbanism
Gob-side entry retaining roadside filling support material using modified industrial gypsum to solidify red mud and preparation method of gob-side entry retaining roadside filling support material
The invention discloses a gob-side entry retaining roadside filling support material using modified industrial gypsum to solidify red mud, which is prepared from the following raw materials in parts by weight: 70-85 parts of red mud, 13-30 parts of modified industrial gypsum and 2-10 parts of compound additive. The manufacturing method of the gob-side entry retaining roadside filling support material comprises the following steps: scattering and crushing red mud to below 3mm for later use; premixing the compound additive, the modified industrial gypsum and the scattered and crushed red mud to obtain a solid mixture; mixing and stirring water and the solid mixture strongly, and obtaining a filling paste slurry; and conveying the filling paste slurry to a filling bag for filling and curing to obtain the roadside filling support material. The prepared roadside filling support slurry is good in stability, good in fluidity and high in strength after being cured. According to the filling material, the defects that the filling construction difficulty of concrete is high, the filling cost of high water is high and the strength is low are overcome, the roadside filling and supporting cost of gob-side entry retaining mining of a mine is reduced, and harmless, large-scale and resource utilization of the two solid wastes of the red mud and the industrial gypsum is realized.
本发明公开了一种用改性工业石膏固化赤泥的沿空留巷巷旁充填支护材料，由按重量份计的下列原料制备而成，赤泥70份～85份、改性工业石膏13份～30份、复合助剂2份～10份。该沿空留巷巷旁赤泥充填支护材料的制作方法为：将赤泥打散破碎至3mm以下待用；将复合助剂、改性工业石膏与打散破碎后的赤泥进行预混得到固体混合料；将水与固体混合料进行混合并强力搅拌得到充填膏体料浆；将充填膏体料浆输送至充填袋进行充填并固化得到巷旁充填支护料。制成的巷旁充填支护料浆的稳定性好、流动性好，固化后强度高。该充填料解决了使用混凝土充填施工难度大、高水充填成本高而强度低的不足，且降低了矿山沿空留巷采矿的巷旁充填支护成本，实现了赤泥和工业石膏两大固废无害化、规模化、资源化利用。
Gob-side entry retaining roadside filling support material using modified industrial gypsum to solidify red mud and preparation method of gob-side entry retaining roadside filling support material
The invention discloses a gob-side entry retaining roadside filling support material using modified industrial gypsum to solidify red mud, which is prepared from the following raw materials in parts by weight: 70-85 parts of red mud, 13-30 parts of modified industrial gypsum and 2-10 parts of compound additive. The manufacturing method of the gob-side entry retaining roadside filling support material comprises the following steps: scattering and crushing red mud to below 3mm for later use; premixing the compound additive, the modified industrial gypsum and the scattered and crushed red mud to obtain a solid mixture; mixing and stirring water and the solid mixture strongly, and obtaining a filling paste slurry; and conveying the filling paste slurry to a filling bag for filling and curing to obtain the roadside filling support material. The prepared roadside filling support slurry is good in stability, good in fluidity and high in strength after being cured. According to the filling material, the defects that the filling construction difficulty of concrete is high, the filling cost of high water is high and the strength is low are overcome, the roadside filling and supporting cost of gob-side entry retaining mining of a mine is reduced, and harmless, large-scale and resource utilization of the two solid wastes of the red mud and the industrial gypsum is realized.
本发明公开了一种用改性工业石膏固化赤泥的沿空留巷巷旁充填支护材料，由按重量份计的下列原料制备而成，赤泥70份～85份、改性工业石膏13份～30份、复合助剂2份～10份。该沿空留巷巷旁赤泥充填支护材料的制作方法为：将赤泥打散破碎至3mm以下待用；将复合助剂、改性工业石膏与打散破碎后的赤泥进行预混得到固体混合料；将水与固体混合料进行混合并强力搅拌得到充填膏体料浆；将充填膏体料浆输送至充填袋进行充填并固化得到巷旁充填支护料。制成的巷旁充填支护料浆的稳定性好、流动性好，固化后强度高。该充填料解决了使用混凝土充填施工难度大、高水充填成本高而强度低的不足，且降低了矿山沿空留巷采矿的巷旁充填支护成本，实现了赤泥和工业石膏两大固废无害化、规模化、资源化利用。
Gob-side entry retaining roadside filling support material using modified industrial gypsum to solidify red mud and preparation method of gob-side entry retaining roadside filling support material
一种用改性工业石膏固化赤泥的沿空留巷巷旁充填支护材料及制备方法
SU XIANGDONG (author) / ZHANG JIANGANG (author) / YAN JINSONG (author) / RAN JINGYU (author) / XU YOULIN (author)
2021-10-22
Patent
Electronic Resource
Chinese
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