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A platform for research: civil engineering, architecture and urbanism
High-porosity gangue-based carbon sequestration filling grouting material as well as preparation method and application thereof
The invention provides a high-porosity gangue-based carbon sequestration filling grouting material and a preparation method and application thereof.The high-porosity gangue-based carbon sequestration filling grouting material is prepared from, by weight, 50-80 parts of coal gangue micro powder, 10-30 parts of magnesium slag micro powder, 5-20 parts of super absorbent resin monomer, 0-5 parts of carbide slag micro powder, 0.05-0.3 part of cross-linking agent, 0.1-0.5 part of initiator, 0.1-0.6 part of foaming agent, 0.1-0.3 part of foam stabilizer, 60-100 parts of water and 2-10 parts of CO2. According to the invention, the ratio of the super absorbent resin monomer to the initiator is adjusted, so that the material is condensed within 15-100 minutes, the coal mining speed is not influenced by the filling operation, bubbles entering the slurry at an early stage are ensured not to break walls and overflow, and chemical carbon sequestration and more efficient geological storage of CO2 are realized through the reaction of magnesium slag, carbide slag and CO2; the slurry finally forms a high-porosity structure by controlling the proportion and reaction conditions, so that the cost of the filling material is effectively reduced; the high-porosity gangue-based carbon sequestration filling grouting material provided by the invention can be suitable for different operation scenes such as filling mining and roof grouting.
本发明提供一种高孔隙矸石基固碳充填注浆材料、制备方法及引用，高孔隙矸石基固碳充填注浆材料以重量份数计，包括煤矸石微粉50～80份，镁渣微粉10～30份，高吸水性树脂单体5～20份，电石渣微粉0～5份，交联剂0.05～0.3份，引发剂0.1～0.5份，发泡剂0.1～0.6份，稳泡剂0.1～0.3份，水60～100份和CO22～10份。本发明通过调整高吸水性树脂单体与引发剂的比例，使材料在15～100min内凝结，在充填作业不影响采煤速度的同时，确保了浆液中早期进入的气泡不会破壁溢出，通过镁渣、电石渣与CO2反应实现化学固碳和更高效的CO2地质封存；通过控制配比和反应条件使浆液最终形成高孔隙结构，有效降低充填材料成本；本发明提供的高孔隙矸石基固碳充填注浆材料能够适用于充填开采、顶板注浆等不同的作业场景。
High-porosity gangue-based carbon sequestration filling grouting material as well as preparation method and application thereof
The invention provides a high-porosity gangue-based carbon sequestration filling grouting material and a preparation method and application thereof.The high-porosity gangue-based carbon sequestration filling grouting material is prepared from, by weight, 50-80 parts of coal gangue micro powder, 10-30 parts of magnesium slag micro powder, 5-20 parts of super absorbent resin monomer, 0-5 parts of carbide slag micro powder, 0.05-0.3 part of cross-linking agent, 0.1-0.5 part of initiator, 0.1-0.6 part of foaming agent, 0.1-0.3 part of foam stabilizer, 60-100 parts of water and 2-10 parts of CO2. According to the invention, the ratio of the super absorbent resin monomer to the initiator is adjusted, so that the material is condensed within 15-100 minutes, the coal mining speed is not influenced by the filling operation, bubbles entering the slurry at an early stage are ensured not to break walls and overflow, and chemical carbon sequestration and more efficient geological storage of CO2 are realized through the reaction of magnesium slag, carbide slag and CO2; the slurry finally forms a high-porosity structure by controlling the proportion and reaction conditions, so that the cost of the filling material is effectively reduced; the high-porosity gangue-based carbon sequestration filling grouting material provided by the invention can be suitable for different operation scenes such as filling mining and roof grouting.
本发明提供一种高孔隙矸石基固碳充填注浆材料、制备方法及引用，高孔隙矸石基固碳充填注浆材料以重量份数计，包括煤矸石微粉50～80份，镁渣微粉10～30份，高吸水性树脂单体5～20份，电石渣微粉0～5份，交联剂0.05～0.3份，引发剂0.1～0.5份，发泡剂0.1～0.6份，稳泡剂0.1～0.3份，水60～100份和CO22～10份。本发明通过调整高吸水性树脂单体与引发剂的比例，使材料在15～100min内凝结，在充填作业不影响采煤速度的同时，确保了浆液中早期进入的气泡不会破壁溢出，通过镁渣、电石渣与CO2反应实现化学固碳和更高效的CO2地质封存；通过控制配比和反应条件使浆液最终形成高孔隙结构，有效降低充填材料成本；本发明提供的高孔隙矸石基固碳充填注浆材料能够适用于充填开采、顶板注浆等不同的作业场景。
High-porosity gangue-based carbon sequestration filling grouting material as well as preparation method and application thereof
一种高孔隙矸石基固碳充填注浆材料、制备方法及应用
ZHANG YUEHONG (author) / WANG XIAODONG (author) / WU BOQIANG (author) / XU GANGGANG (author) / ZHU SHIBIN (author) / TIAN JUNWEI (author) / HAN LE (author) / XU CHEN (author)
2024-03-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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