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A platform for research: civil engineering, architecture and urbanism
Method for reducing free calcium oxide in steel slag
The invention belongs to the technical field of comprehensive utilization of resources, and particularly relates to a method for reducing free calcium oxide in steel slag, which comprises the following steps: (1) tiling the steel slag and then fetching water; (2) introducing carbon dioxide into the watered steel slag in a closed environment; (3) introducing steam, and standing at constant pressure when the steam pressure reaches a threshold value; and (4) after the constant pressure is finished, exhausting and cooling to obtain the steam-cured steel slag. According to the method for reducing the free calcium oxide in the steel slag, the carbon dioxide is introduced in the steel slag steam curing process, so that the content of the free calcium oxide in the steel slag is reduced, the stability of the steel slag is improved, and the utilization rate of the steel slag is increased.
本发明属于资源综合利用技术领域，具体涉及一种降低钢渣中游离氧化钙的方法，包括：(1)将钢渣平铺后打水；(2)在密闭环境中，向打完水的钢渣中通入二氧化碳；(3)通入蒸汽，当蒸汽压力达到阈值时，恒压静置；(4)恒压结束后，排气降温，获得蒸养好的钢渣。本发明的降低钢渣中游离氧化钙的方法，通过在钢渣蒸养过程中通入二氧化碳，降低了钢渣中游离氧化钙的含量，改善了钢渣的安定性，提高了钢渣的利用率。
Method for reducing free calcium oxide in steel slag
The invention belongs to the technical field of comprehensive utilization of resources, and particularly relates to a method for reducing free calcium oxide in steel slag, which comprises the following steps: (1) tiling the steel slag and then fetching water; (2) introducing carbon dioxide into the watered steel slag in a closed environment; (3) introducing steam, and standing at constant pressure when the steam pressure reaches a threshold value; and (4) after the constant pressure is finished, exhausting and cooling to obtain the steam-cured steel slag. According to the method for reducing the free calcium oxide in the steel slag, the carbon dioxide is introduced in the steel slag steam curing process, so that the content of the free calcium oxide in the steel slag is reduced, the stability of the steel slag is improved, and the utilization rate of the steel slag is increased.
本发明属于资源综合利用技术领域，具体涉及一种降低钢渣中游离氧化钙的方法，包括：(1)将钢渣平铺后打水；(2)在密闭环境中，向打完水的钢渣中通入二氧化碳；(3)通入蒸汽，当蒸汽压力达到阈值时，恒压静置；(4)恒压结束后，排气降温，获得蒸养好的钢渣。本发明的降低钢渣中游离氧化钙的方法，通过在钢渣蒸养过程中通入二氧化碳，降低了钢渣中游离氧化钙的含量，改善了钢渣的安定性，提高了钢渣的利用率。
Method for reducing free calcium oxide in steel slag
一种降低钢渣中游离氧化钙的方法
YI GUILAN (author) / LI HAOKUN (author) / SHI YONGLIN (author) / LIU WENWEN (author) / WANG WEIDONG (author) / DONG YONG (author)
2023-03-31
Patent
Electronic Resource
Chinese
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