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本文阐述了钢铁渣的生产量和利用率表明钢渣的利用率只有10%。钢渣利用率低的主要原因是钢渣中f-CaO、f-MgO遇水后体积膨胀,造成钢渣修筑道路,作成的建材制品及工程回填后所建造的厂房均有开裂现象。本文介绍了我国目前在使用的不同钢渣处理方法,推荐了钢渣余热自解热闷处理工艺,并阐述了该处理工艺的原理、技术特点及解决钢渣安定性不良的关键技术。本文论述了钢渣粉,钢渣作道路材料,钢渣作建材制品及钢渣作水泥原料是今后钢渣利用的主要途径。对钢铁工业实现循环经济、可持续发展、保护环境均有重要意义。
This article describes the production and utilization of steel slag which shows that steel slag utilization is only 10%. The main reason for the low utilization rate of steel slag is that the f-CaO and f-MgO in the steel slag expand in volume after encountering with water, resulting in the construction of steel slag roads and the cracking of building materials made from the finished building materials and the factory buildings built after the backfilling. This paper introduces the different steel slag treatment methods currently used in our country, and recommends the process of self-heating and heat removal of steel slag residual heat. The principle, technical characteristics and the key technologies to solve the problem of steel slag stability are expounded. This article discusses the steel slag, steel slag for road materials, steel slag for building materials and steel slag as raw material for the future use of steel slag is the main way. The steel industry to achieve circular economy, sustainable development, environmental protection are of great significance.