中国高炉炼铁技术发展评述

近年来,中国生铁产量高速增长,年增幅在20%以上,同时,高炉炼铁技术也取得了较大的进步,入炉焦比和炼铁工序能耗不断下降,喷煤比、热风温度和利用系数不断提高;1000 m3以上容积的高炉操作技术日趋成熟,各项技术经济指标得到改善.但是,中国炼铁产业集中度低,一批落后的设备仍在使用,造成了中国炼铁工业先进与落后并存的现象.

Review of Technological Development of BF Ironmaking in China

Output of pig iron in China in recent years has been increasing at an increment of more than 20% every year. Meanwhile, BF ironmaking technologies have been greatly improved, coke ratio and energy consumption of ironmaking PCI rate, blast temperature and ultilization factor have been improved continuously. The operation of BF more than 1000 ma became more mature, with better teehnieo-eeonomieal indexes. The concentration rate of steel industry in China is low and much equipment are still used, causing the co-existence of the advance and the laggard equipment in BF production.