A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to the technical field of steel slag treatment, and in particular, relates to a multipurpose steel slag aging treatment method which comprises the following steps: introducing steam from the upper part of steel slag for aging treatment, then spraying water, finally introducing CO2 gas into a steel slag pile for carbonization, and aging for at least three weeks to obtain the steel slag. The method plays a role in promoting the aging of the steel slag in a high-temperature and humid environment, CO2 gas introduced through a pre-buried vent pipe can be retained in a dense closed layer formed by moisture for a long time, the carbonization effect of the steel slag is improved, the aging efficiency of the steel slag is further improved, free calcium oxide is reduced, the soaking expansion rate and the steam pulverization rate are reduced, the aging of the steel slag sand with different particle sizes is realized, the steel slag aging efficiency is improved, the turnover rate of a natural aging stockpiling yard is increased, and the safety of the steel slag sand applied to the fields of concrete and mortar is improved.
本发明涉及一种钢渣处理技术领域，是一种多用途钢渣陈化处理方法，按照下述方法进行：从钢渣上方通入蒸汽进行陈化处理，再进行喷水，最后向钢渣堆通入CO2气体进行碳化，经过至少三周的陈化后得到。本发明在高温潮湿的环境可对钢渣陈化起到促进作用，通过预埋通气管通入的CO2气体在水分形成致密封闭层内能够长时间留存，提高钢渣的碳化效果，进一步提高钢渣陈化效率，降低游离氧化钙、浸水膨胀率、蒸汽粉化率，分粒径钢渣砂陈化，提升了钢渣陈化的效率，提升自然陈化堆存料场的周转率，提升了钢渣砂在混凝土及砂浆领域应用的安全性。
The invention relates to the technical field of steel slag treatment, and in particular, relates to a multipurpose steel slag aging treatment method which comprises the following steps: introducing steam from the upper part of steel slag for aging treatment, then spraying water, finally introducing CO2 gas into a steel slag pile for carbonization, and aging for at least three weeks to obtain the steel slag. The method plays a role in promoting the aging of the steel slag in a high-temperature and humid environment, CO2 gas introduced through a pre-buried vent pipe can be retained in a dense closed layer formed by moisture for a long time, the carbonization effect of the steel slag is improved, the aging efficiency of the steel slag is further improved, free calcium oxide is reduced, the soaking expansion rate and the steam pulverization rate are reduced, the aging of the steel slag sand with different particle sizes is realized, the steel slag aging efficiency is improved, the turnover rate of a natural aging stockpiling yard is increased, and the safety of the steel slag sand applied to the fields of concrete and mortar is improved.
本发明涉及一种钢渣处理技术领域，是一种多用途钢渣陈化处理方法，按照下述方法进行：从钢渣上方通入蒸汽进行陈化处理，再进行喷水，最后向钢渣堆通入CO2气体进行碳化，经过至少三周的陈化后得到。本发明在高温潮湿的环境可对钢渣陈化起到促进作用，通过预埋通气管通入的CO2气体在水分形成致密封闭层内能够长时间留存，提高钢渣的碳化效果，进一步提高钢渣陈化效率，降低游离氧化钙、浸水膨胀率、蒸汽粉化率，分粒径钢渣砂陈化，提升了钢渣陈化的效率，提升自然陈化堆存料场的周转率，提升了钢渣砂在混凝土及砂浆领域应用的安全性。
Multipurpose steel slag aging treatment method
多用途钢渣陈化处理方法
2021-12-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME