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Mine filler based on calcination-free gypsum and preparation method ofmine filler
The invention discloses a mine filler based on calcination-free gypsum and a preparation method of the mine filler. The mine filler comprises the following components in percentage by weight: 75-81% of non-calcined desulfurized gypsum/ardealite, 12-16% of magnesium oxide, 3-6% of magnesium sulfate, 1.2-1.9% of citric acid, 0.48-1.75% of sodium tripolyphosphate and 0.02-0.05% of a water-retaining agent. The mine filler can be directly used for mine filling and pouring, and has the characteristics of high fluidity, good working performance, acid and erosion resistance, high later strength, high ardealite consumption and the like.
本发明公开了一种基于免煅烧石膏的矿山填充料及其制备方法；按重量百分比计，包括如下组分：免煅烧脱硫石膏/磷石膏75～81％，氧化镁12～16％，硫酸镁3～6％，柠檬酸1.2～1.9％，三聚磷酸钠0.48～1.75％，保水剂0.02～0.05％。本发明可直接用于矿山填充、灌注，具有流动度大，工作性能好，抗酸抗侵蚀、后期强度大及磷石膏消耗量大等特点。
Mine filler based on calcination-free gypsum and preparation method ofmine filler
The invention discloses a mine filler based on calcination-free gypsum and a preparation method of the mine filler. The mine filler comprises the following components in percentage by weight: 75-81% of non-calcined desulfurized gypsum/ardealite, 12-16% of magnesium oxide, 3-6% of magnesium sulfate, 1.2-1.9% of citric acid, 0.48-1.75% of sodium tripolyphosphate and 0.02-0.05% of a water-retaining agent. The mine filler can be directly used for mine filling and pouring, and has the characteristics of high fluidity, good working performance, acid and erosion resistance, high later strength, high ardealite consumption and the like.
本发明公开了一种基于免煅烧石膏的矿山填充料及其制备方法；按重量百分比计，包括如下组分：免煅烧脱硫石膏/磷石膏75～81％，氧化镁12～16％，硫酸镁3～6％，柠檬酸1.2～1.9％，三聚磷酸钠0.48～1.75％，保水剂0.02～0.05％。本发明可直接用于矿山填充、灌注，具有流动度大，工作性能好，抗酸抗侵蚀、后期强度大及磷石膏消耗量大等特点。
Mine filler based on calcination-free gypsum and preparation method ofmine filler
一种基于免煅烧石膏的矿山填充料及其制备方法
XIONG QINGPING (author) / XIONG CHEN (author)
2021-11-05
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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