Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Landfill slurry material, preparation method thereof and application of landfill slurry material in filling coal gangue layer
The invention discloses a landfill slurry material, a preparation method thereof and application of the landfill slurry material in filling a coal gangue layer, and relates to the technical field of coal mine landfill materials. The landfill slurry material comprises the following components in parts by weight: 5-15 parts of sodium alginate, 2-5 parts of a cross-linking agent, 30-45 parts of fly ash, 2-5 parts of sodium bicarbonate, 8-15 parts of loess, 2-6 parts of hydrotalcite, 3-8 parts of bentonite, 50-70 parts of a modified lignin solution and 120-200 parts of water. The modified lignin solution contains enzymatic hydrolysis lignin, phenol, sodium hydroxide and water; based on 100% of the mass of the modified lignin solution, the mass fraction of the enzymatic hydrolysis lignin is 20%-25%, the mass ratio of the phenol to the enzymatic hydrolysis lignin is (0.5-0.6): 1, and the mass ratio of the sodium hydroxide to the enzymatic hydrolysis lignin is (0.4-0.6): 1. The landfill slurry material prepared from the raw materials has good water retention and flame retardant properties, and has good permeability to a coal gangue layer.
本申请公开了一种填埋浆体材料及其制备方法和在充填煤矸石层中的应用，涉及煤矿填埋材料技术领域。该填埋浆体材料包含如下重量份的成分：海藻酸钠5‑15份、交联剂2‑5份、粉煤灰30‑45份、碳酸氢钠2‑5份、黄土8‑15份、水滑石2‑6份、膨润土3‑8份、改性木质素溶液50‑70份和水120‑200份；上述改性木质素溶液包含酶解木质素、苯酚、氢氧化钠和水；以改性木质素溶液的质量为100％计，酶解木质素的质量分数为20％‑25％，苯酚和酶解木质素的质量比为(0.5‑0.6)：1，氢氧化钠和酶解木质素的质量比为(0.4‑0.6)：1。以上述原料制备的填埋浆体材料具有良好的保水、阻燃性能，对煤矸石层具有良好的渗透性。
Landfill slurry material, preparation method thereof and application of landfill slurry material in filling coal gangue layer
The invention discloses a landfill slurry material, a preparation method thereof and application of the landfill slurry material in filling a coal gangue layer, and relates to the technical field of coal mine landfill materials. The landfill slurry material comprises the following components in parts by weight: 5-15 parts of sodium alginate, 2-5 parts of a cross-linking agent, 30-45 parts of fly ash, 2-5 parts of sodium bicarbonate, 8-15 parts of loess, 2-6 parts of hydrotalcite, 3-8 parts of bentonite, 50-70 parts of a modified lignin solution and 120-200 parts of water. The modified lignin solution contains enzymatic hydrolysis lignin, phenol, sodium hydroxide and water; based on 100% of the mass of the modified lignin solution, the mass fraction of the enzymatic hydrolysis lignin is 20%-25%, the mass ratio of the phenol to the enzymatic hydrolysis lignin is (0.5-0.6): 1, and the mass ratio of the sodium hydroxide to the enzymatic hydrolysis lignin is (0.4-0.6): 1. The landfill slurry material prepared from the raw materials has good water retention and flame retardant properties, and has good permeability to a coal gangue layer.
本申请公开了一种填埋浆体材料及其制备方法和在充填煤矸石层中的应用，涉及煤矿填埋材料技术领域。该填埋浆体材料包含如下重量份的成分：海藻酸钠5‑15份、交联剂2‑5份、粉煤灰30‑45份、碳酸氢钠2‑5份、黄土8‑15份、水滑石2‑6份、膨润土3‑8份、改性木质素溶液50‑70份和水120‑200份；上述改性木质素溶液包含酶解木质素、苯酚、氢氧化钠和水；以改性木质素溶液的质量为100％计，酶解木质素的质量分数为20％‑25％，苯酚和酶解木质素的质量比为(0.5‑0.6)：1，氢氧化钠和酶解木质素的质量比为(0.4‑0.6)：1。以上述原料制备的填埋浆体材料具有良好的保水、阻燃性能，对煤矸石层具有良好的渗透性。
Landfill slurry material, preparation method thereof and application of landfill slurry material in filling coal gangue layer
一种填埋浆体材料及其制备方法和在充填煤矸石层中的应用
GUO YANGNAN (Autor:in) / LIU LIANGPING (Autor:in) / LEI MINGZHE (Autor:in) / CAO PENGFEI (Autor:in) / PAN JIN (Autor:in) / ZHANG KAI (Autor:in) / YANG KANG (Autor:in)
05.04.2024
Patent
Elektronische Ressource
Chinesisch
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