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Preparation method of mine gas drainage drill hole sealing filling material
The invention discloses a preparation method of a mine gas drainage drill hole sealing filling material, and belongs to the technical field of coal seam gas governance, the formula of the mine gas drainage drill hole sealing filling material comprises the following components by mass: 60-75% of Portland cement, 5-10% of calcium sulphoaluminate clinker, 1-15% of quicklime, 0.1-0.2% of a water reducing agent, and 0.10-0.3% of polyacrylamide or hydroxymethyl cellulose, the formula is mixed with water for use, and the water cement ratio is 1.2-1. The material has good fluidity before initial setting, cracks and holes in drill holes can be well filled, the material has the characteristics of high compressive strength, good sealing performance and good durability after solidification, and the requirement for hole sealing compactness of gas drainage drill holes can be met.
本发明公开一种矿井瓦斯抽放钻孔封孔填充材料的制备方法，属于煤层瓦斯治理技术领域，其配方中各组分按总体质量比为：硅酸盐水泥60%～75%、硫铝酸钙熟料5%～10%、生石灰1%～15%、减水剂0.1～0.2%、聚丙烯酰胺或羟甲基纤维素0.10－0.3％，配方与水混合使用，其水灰比为1.2～1。本发明材料初凝前具有良好的流动性，能够很好地填充钻孔内的裂隙、孔洞，材料凝固后具有抗压强度高、密封性好，耐久性好的特点，能够满足瓦斯抽放钻孔封孔致密性的要求。
Preparation method of mine gas drainage drill hole sealing filling material
The invention discloses a preparation method of a mine gas drainage drill hole sealing filling material, and belongs to the technical field of coal seam gas governance, the formula of the mine gas drainage drill hole sealing filling material comprises the following components by mass: 60-75% of Portland cement, 5-10% of calcium sulphoaluminate clinker, 1-15% of quicklime, 0.1-0.2% of a water reducing agent, and 0.10-0.3% of polyacrylamide or hydroxymethyl cellulose, the formula is mixed with water for use, and the water cement ratio is 1.2-1. The material has good fluidity before initial setting, cracks and holes in drill holes can be well filled, the material has the characteristics of high compressive strength, good sealing performance and good durability after solidification, and the requirement for hole sealing compactness of gas drainage drill holes can be met.
本发明公开一种矿井瓦斯抽放钻孔封孔填充材料的制备方法，属于煤层瓦斯治理技术领域，其配方中各组分按总体质量比为：硅酸盐水泥60%～75%、硫铝酸钙熟料5%～10%、生石灰1%～15%、减水剂0.1～0.2%、聚丙烯酰胺或羟甲基纤维素0.10－0.3％，配方与水混合使用，其水灰比为1.2～1。本发明材料初凝前具有良好的流动性，能够很好地填充钻孔内的裂隙、孔洞，材料凝固后具有抗压强度高、密封性好，耐久性好的特点，能够满足瓦斯抽放钻孔封孔致密性的要求。
Preparation method of mine gas drainage drill hole sealing filling material
一种矿井瓦斯抽放钻孔封孔填充材料的制备方法
AO CHENGYI (author) / AO MIN (author)
2023-03-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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