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首页> 外文会议>CISA international steel congress 2002 and high-ranking conference on innovation and sustainable development >Current Situation and Trend of Comprehensive Utilization of Solid Wastes of Iron and Steel Industry in PRC
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Current Situation and Trend of Comprehensive Utilization of Solid Wastes of Iron and Steel Industry in PRC

机译：中国钢铁工业固体废物综合利用的现状与趋势

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摘要

Annual output of solid wastes of iron and steel industry in PRC is 170 million tons with comprehensive utilization rate 44.7%. The paper conducts statistical analysis of annual output, utilization rate as well as chemical and mineralogical compositions of iron and steel industry's solid wastes and summarizes their main ways for utilization. It describes a member of techniques and products with advanced work level and independent intellectual and property rights, studied and developed in terms of China's national conditions. It suggests major efforts should be henceforth devoted to spread and apply the following comprehensive utilization techniques: redressing tailings to recover iron concentrate and intermediate product, replacing iron powder and clay with tailings to make cement clinker, using tailings as building construction material; using granulated blast furnace slag powder as cement and concrete additives; using steel slag to make sintering material for iron smelting and steel slag cement, using steel slag powder as cement and concrete additives; using iron containing dust mud as sintering mix for iron smelting; using fly ash as cement mix and concrete additives as well as new type building materials and products. Main tasks ahead for comprehensive utilization of solid wastes in iron and steel industry are as follows; gradually expanding industrialization scale as well as improving technical level of high-valued comprehensive utilization and comprehensive utilization rate.
机译：中国钢铁行业的固体废物年产量为1.7亿吨，综合利用率为44.7％。本文对钢铁工业固体废物的年产量，利用率以及化学和矿物组成进行了统计分析，并总结了其主要利用方法。它描述了根据中国国情研究和开发的，具有较高工作水平和独立知识产权的技术和产品的成员。建议今后应大力推广和应用以下综合利用技术：修整尾矿以回收铁精矿和中间产品；用尾矿代替铁粉和粘土制成水泥熟料；使用尾矿作建筑建筑材料；使用高炉矿渣粉作为水泥和混凝土添加剂；以钢渣为铁水和钢渣水泥的烧结料，以钢渣粉为水泥和混凝土添加剂。使用含铁尘泥作为烧结混合物进行铁冶炼；使用粉煤灰作为水泥混合物和混凝土添加剂以及新型建筑材料和产品。钢铁行业固体废物综合利用的主要任务如下：逐步扩大工业化规模，提高高价值综合利用的技术水平和综合利用率。

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