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Preparation method of high-activity mineral slurry of wet-process carbonized steel slag
The invention discloses a preparation method of high-activity mineral slurry of wet-process carbonized steel slag, relates to a preparation method of mineral slurry, and aims to solve the technical problems of low carbon sequestration efficiency and low volcanic ash activity of the existing wet-process carbonized steel slag. And adding the charcoal, the steel slag and the water into a high-pressure reaction kettle, introducing CO2 gas into the reaction kettle, and continuously stirring to obtain the high-activity mineral slurry. The loose porous structure of the biochar enables solid CaCO3 to be better precipitated, so that after the carbon sequestration efficiency is improved and an external compact CaCO3 layer is peeled off, calcium silicate minerals with hydration activity in the steel slag can be better in contact with water in the slurry to generate hydration reaction, and the pozzolanic activity of the slurry can also be obviously improved. The prepared high-activity mineral slurry can partially replace cement and improve the early strength of a cement-based material. The method can be used in building field.
一种湿法碳化钢渣的高活性矿物浆料的制备方法，它涉及矿物浆料的制备方法，它是要解决现有的湿法碳化钢渣存在的固碳效率低、火山灰活性低的技术问题，本方法：先制备钢渣微粉和生物炭颗粒；再将生物炭、钢渣和水加入到高压反应釜中，向反应釜内通入CO2气体并持续搅拌，得到高活性矿物浆料。本发明中生物炭的疏松多孔结构也使得固体CaCO3更好地沉淀，因此固碳效率得到提升同时外部致密的CaCO3层剥落后，钢渣内部具有水化活性的硅酸钙矿物也能更好地与浆体中的水接触，发生水化反应，因此浆体的火山灰活性也能有明显的提升。本发明制备的高活性矿物浆料可部分替代水泥并提高水泥基材料早期强度。可用于建筑领域。
Preparation method of high-activity mineral slurry of wet-process carbonized steel slag
The invention discloses a preparation method of high-activity mineral slurry of wet-process carbonized steel slag, relates to a preparation method of mineral slurry, and aims to solve the technical problems of low carbon sequestration efficiency and low volcanic ash activity of the existing wet-process carbonized steel slag. And adding the charcoal, the steel slag and the water into a high-pressure reaction kettle, introducing CO2 gas into the reaction kettle, and continuously stirring to obtain the high-activity mineral slurry. The loose porous structure of the biochar enables solid CaCO3 to be better precipitated, so that after the carbon sequestration efficiency is improved and an external compact CaCO3 layer is peeled off, calcium silicate minerals with hydration activity in the steel slag can be better in contact with water in the slurry to generate hydration reaction, and the pozzolanic activity of the slurry can also be obviously improved. The prepared high-activity mineral slurry can partially replace cement and improve the early strength of a cement-based material. The method can be used in building field.
一种湿法碳化钢渣的高活性矿物浆料的制备方法，它涉及矿物浆料的制备方法，它是要解决现有的湿法碳化钢渣存在的固碳效率低、火山灰活性低的技术问题，本方法：先制备钢渣微粉和生物炭颗粒；再将生物炭、钢渣和水加入到高压反应釜中，向反应釜内通入CO2气体并持续搅拌，得到高活性矿物浆料。本发明中生物炭的疏松多孔结构也使得固体CaCO3更好地沉淀，因此固碳效率得到提升同时外部致密的CaCO3层剥落后，钢渣内部具有水化活性的硅酸钙矿物也能更好地与浆体中的水接触，发生水化反应，因此浆体的火山灰活性也能有明显的提升。本发明制备的高活性矿物浆料可部分替代水泥并提高水泥基材料早期强度。可用于建筑领域。
Preparation method of high-activity mineral slurry of wet-process carbonized steel slag
一种湿法碳化钢渣的高活性矿物浆料的制备方法
GAO XIAOJIAN (author) / LI LINSHAN (author) / CHEN TIEFENG (author) / SUN MING (author)
2024-03-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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