一、概况地方中小钢铁企业是我国钢铁工业的重要组成部份。其中省属地方中型骨干厂(以下简称骨干厂)拥有100～620米~3高炉126座,总容积2060米~3,设备能力超过1100万吨/年。1982年实际产铁743万吨,占全国生铁总产量21%。地县小铁厂经过初步调整,到1982年底,尚保留100米~3以下小高炉153座,容积4465米~3,当年产铁201万吨。几年来中小高炉的生产对促进地方工农业发展起了重 I. Overview Local small and medium-sized iron and steel enterprises are an important part of China’s steel industry. Among them, the provincial middle-sized backbone factory (hereinafter referred to as the backbone factory) owns 126 blast furnaces with 100-620m3 and a total capacity of 2060-3m, with equipment capacity of over 11 million tons / year. In 1982, the actual production of 74.3 million tons of iron, accounting for 21% of the total pig iron production. After the initial adjustment of the county ironworks, by the end of 1982, 153 small blast furnaces with a volume of 4465m ~ 3 were retained, with an annual output of 2.01 million tons of iron. Over the past few years, the production of small and medium-sized blast furnace to promote local industrial and agricultural development has played a heavy