Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-strength hole sealing agent for coal mine gas extraction drilling
The invention discloses a high-strength hole sealing agent for coal mine gas extraction drilling, and relates to a grouting hole sealing material. The hole sealing agent is specifically prepared fromthe following raw materials in parts by mass: 2-5 parts of graphene, 4-8 parts of basalt short fibers, 50-70 parts of Portland cement, 20-25 parts of gypsum, 10-15 parts of fly ash, 2-5 parts of an expanding agent and 2-5 parts of an additive. The inorganic hole sealing agent provided by the invention is good in expansion performance, the highest expansion rate can reach 50%, holes can be effectively sealed, gas leakage channels of drilled holes are effectively reduced, the gas extraction period is prolonged, and the gas extraction concentration is improved.
本发明公开了一种煤矿瓦斯抽采钻孔用高强度封孔剂，涉及注浆封孔材料；具体是由以下质量份数的原料制备而成：石墨烯2‑5份、玄武岩短纤维4‑8份、硅酸盐水泥50‑70份、石膏20‑25份、粉煤灰10‑15份、膨胀剂2‑5份、外加剂2‑5份；本发明提供的无机封孔剂的膨胀性能好，膨胀率最高可达50%，能够有效将孔内封实，有效减少钻孔漏气通道，延长瓦斯抽采期、提高瓦斯抽采浓度。
High-strength hole sealing agent for coal mine gas extraction drilling
The invention discloses a high-strength hole sealing agent for coal mine gas extraction drilling, and relates to a grouting hole sealing material. The hole sealing agent is specifically prepared fromthe following raw materials in parts by mass: 2-5 parts of graphene, 4-8 parts of basalt short fibers, 50-70 parts of Portland cement, 20-25 parts of gypsum, 10-15 parts of fly ash, 2-5 parts of an expanding agent and 2-5 parts of an additive. The inorganic hole sealing agent provided by the invention is good in expansion performance, the highest expansion rate can reach 50%, holes can be effectively sealed, gas leakage channels of drilled holes are effectively reduced, the gas extraction period is prolonged, and the gas extraction concentration is improved.
本发明公开了一种煤矿瓦斯抽采钻孔用高强度封孔剂，涉及注浆封孔材料；具体是由以下质量份数的原料制备而成：石墨烯2‑5份、玄武岩短纤维4‑8份、硅酸盐水泥50‑70份、石膏20‑25份、粉煤灰10‑15份、膨胀剂2‑5份、外加剂2‑5份；本发明提供的无机封孔剂的膨胀性能好，膨胀率最高可达50%，能够有效将孔内封实，有效减少钻孔漏气通道，延长瓦斯抽采期、提高瓦斯抽采浓度。
High-strength hole sealing agent for coal mine gas extraction drilling
一种煤矿瓦斯抽采钻孔用高强度封孔剂
BAI GUANGPING (Autor:in) / FENG JIE (Autor:in) / WANG LIUZHUO (Autor:in) / CHEN MENGMENG (Autor:in)
12.03.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
E21B
EARTH OR ROCK DRILLING
,
Erd- oder Gesteinsbohren
/
E21F
Sicherheitsvorrichtungen, Förderung, Auffüllen oder Bergversatz, Rettungswesen, Bewetterung oder Entwässerung in oder von Gruben oder Tunnels
,
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS
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