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序言发展循环经济,加强资源节约和管理,是转变经济发展方式建设资源节约型、环境友好型社会的重要组成部分。废钢铁本身是载能体,用废钢铁炼钢,每吨可以节约1吨标准煤,减少二至三吨铁矿石开采和四至五吨原生矿开采。从18世纪的工业革命开始全球的钢产量每年都在增加,按照目前的钢铁生产速度,全球已探明的铁矿石基础储量仅够使用200年左右。但是据不完全统计,自工业革命以来,全球已有80%的地下矿藏储量,转移到了地上,其中,已报废的各种钢铁制品,变成
Preamble The development of circular economy and the strengthening of resource conservation and management are important components of transforming the mode of economic development and building a resource-saving and environment-friendly society. Scrap itself is an energy carrier, steelmaking with scrap steel, saving one tonne of standard coal per tonne, reducing two to three tons of iron ore and four to five tons of primary ore. From the beginning of the industrial revolution in the 18th century, the world’s steel production has been increasing every year. According to the current steel production rate, the world’s proven base iron ore reserves have only been used for about 200 years. However, according to incomplete statistics, since the Industrial Revolution, 80% of the underground mineral reserves in the world have been transferred to the earth. Among them, various scrapped steel products have become