1984年日本的生铁产量为8040万吨,比1983年多产747万吨,增长10.2%。按炼铁方法统计,高炉铁8030万吨,增长10.3%;电炉铁3万吨,增长26.9%;其他炉子生产的铁7万吨,降低27.5%。按用途计,炼钢生铁7922万吨,增长10%,铸造铁118万吨,增长29%。高炉利用系数,年平均为1.94,与1983年1.72相比,提高0.22。按月计,在10月创造了2.02的记录,成为1980年5月(2.01)以来的最高水平。燃料比在5月达到490公斤/吨。高炉喷吹煤粉情况:在1983年有新日铁大分1号(4158米~3)、神户3号(1845米~3)和加古川2号(3850米~3)3座高炉,而在1984年 In 1984, Japan’s pig iron production was 80.4 million tons, 7.47 million tons more than in 1983, an increase of 10.2%. According to the statistics of the ironmaking method, blast furnace iron 80.3 million tons, an increase of 10.3%; EAF 30000 tons, an increase of 26.9%; other furnace iron 70,000 tons, a decrease of 27.5%. By purpose, 79.22 million tons of pig iron were steel-made, a 10% increase, and 1.18 million tons of cast iron, an increase of 29%. Blast utilization factor, with an average annual 1.94, compared with 1.72 in 1983, an increase of 0.22. On a monthly basis, a record of 2.02 was created in October, the highest level since May 1980 (2.01). The fuel ratio reached 490 kg / t in May. Blast furnace pulverized coal injection: In 1983 there were 3 blast furnaces at Nippon Steel Oita 1 (4158m 3), Kobe 3 (1845m 3) and Kakogawa 2 (3850m 3), and in 1984 year