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A platform for research: civil engineering, architecture and urbanism
Cementing material for coal mine paste filling as well as preparation method and application of cementing material
The invention discloses a cementing material for coal mine paste filling and a preparation method and application thereof.The cementing material comprises, by mass, 25%-45% of mineral powder, 40%-70% of magnesium slag powder, 3%-8% of cement and 2%-7% of excitant, and the excitant comprises sodium hydroxide and dihydrate gypsum according to the mass ratio of 1: (10-15). According to the cementing material composition for coal mine paste filling, the mineral powder, the magnesium slag powder, the cement and the exciting agent act together, the effects of all the materials can be well exerted, the use amount of the high-cost cement is reduced, the cementing effect is achieved in the coal mine paste filling material, and the strength required by process design is met under the condition that the use amount is small, so that the filling cost is reduced.
本发明公开了一种煤矿膏体充填用胶结料及其制备方法和应用，该胶结料按质量百分比计，包括如下组分：矿粉25％～45％，镁渣粉40％～70％，水泥3％～8％，激发剂2％～7％，所述激发剂包括质量比为1：(10～15)的氢氧化钠和二水石膏。本发明的煤矿膏体充填用胶结料组合物中矿粉与镁渣粉、水泥、激发剂共同作用，可以很好的发挥各材料的作用，减少高成本水泥的用量，在煤矿膏体充填材料中起到胶凝作用，在用量少的情况下，满足工艺设计要求强度，从而降低充填成本。
Cementing material for coal mine paste filling as well as preparation method and application of cementing material
The invention discloses a cementing material for coal mine paste filling and a preparation method and application thereof.The cementing material comprises, by mass, 25%-45% of mineral powder, 40%-70% of magnesium slag powder, 3%-8% of cement and 2%-7% of excitant, and the excitant comprises sodium hydroxide and dihydrate gypsum according to the mass ratio of 1: (10-15). According to the cementing material composition for coal mine paste filling, the mineral powder, the magnesium slag powder, the cement and the exciting agent act together, the effects of all the materials can be well exerted, the use amount of the high-cost cement is reduced, the cementing effect is achieved in the coal mine paste filling material, and the strength required by process design is met under the condition that the use amount is small, so that the filling cost is reduced.
本发明公开了一种煤矿膏体充填用胶结料及其制备方法和应用，该胶结料按质量百分比计，包括如下组分：矿粉25％～45％，镁渣粉40％～70％，水泥3％～8％，激发剂2％～7％，所述激发剂包括质量比为1：(10～15)的氢氧化钠和二水石膏。本发明的煤矿膏体充填用胶结料组合物中矿粉与镁渣粉、水泥、激发剂共同作用，可以很好的发挥各材料的作用，减少高成本水泥的用量，在煤矿膏体充填材料中起到胶凝作用，在用量少的情况下，满足工艺设计要求强度，从而降低充填成本。
Cementing material for coal mine paste filling as well as preparation method and application of cementing material
煤矿膏体充填用胶结料及其制备方法和应用
2022-12-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2022
| European Patent Office | 2021
| European Patent Office | 2022
| European Patent Office | 2023