钢厂废旧耐火材料的循环利用.pdfVIP

钢厂废旧耐火材料的循环利用 毛艳丽 曲余玲 （鞍钢股份技术中心, 辽宁 鞍山 114009 ） 摘要 钢厂每年产生大量的废旧耐火材料，若能大幅提高其循环利用率，则既能降低钢厂的耐火材 料成本和冶金成本，又能减少资源消耗。国外许多国家都非常重视废旧耐火材料的循环利用，日本、 美国、欧洲、印度、韩国等国家或地区都已开展了废旧耐火材料循环利用活动。近年国内钢厂也开始 重视废旧耐火材料的循环利用，宝钢、武钢、济钢等已开展了废旧耐火材料循环利用研究。台湾中钢 采取了管理和技术并行措施，以保证废旧耐火材料的循环利用。典型的废旧耐火材料循环利用技术以 新日铁的为代表，文中对其进行了详细介绍。 关键词 废旧耐火材料，钢厂，循环利用 Recycling of Waste Refractories in Steel Works Mao Yanli Qu Yuling (Ansteel Technology Center, Anshan Liaoning,114009) Abstract A mass of waste refractories are resulted from the steel works, if the recycling rate of which could be significantly increased, the refractory cost and the metallurgical cost of the steel works will be reduced, but also the resource consumption will be lowered. Many foreign countries have emphasized the recycling of the waste refractories, e.g., Japan, the US, the Europe, India and the South Korea have carried out the recycling activity of waste refractories. The steel works at home also pay attention to the recycling of waste refractories recently, among them, the Baosteel, Wusteel and Jisteel etc. have researched the recycling of waste refractories. The China Steel in Taiwan has adopted the management and technological measures in parallel so as to ensure the recycling of waste refractories. The typical technologies for recycling of the waste refractories are represented by that of the NSC, which are introduced in detail. Key Words used refractory, steel works, recycling 耐火材料是钢铁生产必不可少的辅助原料，我国钢铁行业目前年消耗耐火材料约1300多万t，占耐 火材料总消耗量的65%~70%，用后产生的废旧耐火材料达到400多万t。废旧耐火材料的循环利用在我国 尚处于起步阶段，综合利用率较低[1-2]，若能大幅提高其循环利用率，则既能降低钢厂的耐火材料成本 和冶金成本，促进钢厂降本增效，又能减少资源消耗，促进自然环境保护，具有显著的经济效益与社 会效益。尤其对于正处于转型升级期的鞍钢来说，将是壮大非钢产业、扭亏增效的有效途径。 1 钢厂废旧耐火材料循环利用的意义 钢铁生产流程中使用的耐火材料按形状可分为定型产品和不定型产品两大类，按化学主要组成可