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Low-carbon preparation method of early-strength delayed-coagulation micro-expansive cementing material for filling sulfur-fixing ash-based coal mine
The invention discloses an early-strength delayed-coagulation micro-expansive cementing material for filling a sulfur-fixing ash-based coal mine, which takes hot sulfur-fixing slag, sulfur-fixing ash, wet carbide slag and wet desulfurization gypsum as main raw materials. The early-strength delayed-coagulation micro-expansive cementing material comprises the following components: 20%-50% of sulfur-fixing slag, 20%-50% of sulfur-fixing ash, 20%-40% of wet carbide slag, 0-8% of wet desulfurization gypsum and 0.05%-0.1% of a hydration inhibitor, the invention further discloses a low-energy-consumption preparation method for preparing the sulfur-fixing ash-based cementing material, and the method comprises the steps that wet materials are primarily dried through a slag cooler, batching and mixing are completed, and secondary drying is conducted through waste flue gas of a power plant. The energy consumption for drying the wet carbide slag and the wet desulfurized gypsum is reduced, meanwhile, mixing of multiple raw materials is completed, the preparation cost is greatly reduced, and the cementing material can also be used for road engineering such as soil solidification.
本发明公开了一种以热态固硫渣、固硫灰和湿态电石渣、湿态脱硫石膏为主要原材料的固硫灰渣基煤矿充填用早强缓凝微膨胀型胶凝材料，包括以下组分：固硫渣20％～50％，固硫灰20％～50％，湿态电石渣20％～40％，湿态脱硫石膏0～8％，水化抑制剂0.05％～0.1％；本发明还公开了一种利用冷渣器初步烘干湿态物料、并完成配料混料，利用电厂废烟气进行二次烘干的低能耗制备固硫灰渣基胶凝材料的制备方法，本发明利用固硫渣的热量烘干高含水固废电石渣和脱硫石膏，降低了烘干湿态电石渣和湿态脱硫石膏的能耗，同时完成了多种原材料的混合，大大降低了制备成本，本发明所涉及胶凝材料也可用于土壤固化等道路工程。
Low-carbon preparation method of early-strength delayed-coagulation micro-expansive cementing material for filling sulfur-fixing ash-based coal mine
The invention discloses an early-strength delayed-coagulation micro-expansive cementing material for filling a sulfur-fixing ash-based coal mine, which takes hot sulfur-fixing slag, sulfur-fixing ash, wet carbide slag and wet desulfurization gypsum as main raw materials. The early-strength delayed-coagulation micro-expansive cementing material comprises the following components: 20%-50% of sulfur-fixing slag, 20%-50% of sulfur-fixing ash, 20%-40% of wet carbide slag, 0-8% of wet desulfurization gypsum and 0.05%-0.1% of a hydration inhibitor, the invention further discloses a low-energy-consumption preparation method for preparing the sulfur-fixing ash-based cementing material, and the method comprises the steps that wet materials are primarily dried through a slag cooler, batching and mixing are completed, and secondary drying is conducted through waste flue gas of a power plant. The energy consumption for drying the wet carbide slag and the wet desulfurized gypsum is reduced, meanwhile, mixing of multiple raw materials is completed, the preparation cost is greatly reduced, and the cementing material can also be used for road engineering such as soil solidification.
本发明公开了一种以热态固硫渣、固硫灰和湿态电石渣、湿态脱硫石膏为主要原材料的固硫灰渣基煤矿充填用早强缓凝微膨胀型胶凝材料，包括以下组分：固硫渣20％～50％，固硫灰20％～50％，湿态电石渣20％～40％，湿态脱硫石膏0～8％，水化抑制剂0.05％～0.1％；本发明还公开了一种利用冷渣器初步烘干湿态物料、并完成配料混料，利用电厂废烟气进行二次烘干的低能耗制备固硫灰渣基胶凝材料的制备方法，本发明利用固硫渣的热量烘干高含水固废电石渣和脱硫石膏，降低了烘干湿态电石渣和湿态脱硫石膏的能耗，同时完成了多种原材料的混合，大大降低了制备成本，本发明所涉及胶凝材料也可用于土壤固化等道路工程。
Low-carbon preparation method of early-strength delayed-coagulation micro-expansive cementing material for filling sulfur-fixing ash-based coal mine
一种固硫灰渣基煤矿充填用早强缓凝微膨胀型胶凝材料的低碳制备方法
GAO PENG (author) / LIU XIANGLEI (author) / WANG YUQIANG (author) / ZHANG YANPING (author) / SHEN RUI (author)
2024-10-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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