为改善炼铁技术指标,武钢引进了中心加焦技术。从炉顶向高炉中心加入一定量的焦炭,以减小高炉中心区域的矿焦比,使中心透气性改善。通过采用该技术,武钢炼铁厂多年来保持了高炉炉况的稳定顺行,经济技术指标逐步优化。目前,煤气利用率为48%,燃料比为515kg/t,缩小了与先进高炉的差距。 In order to improve the technical indicators of iron making, WISCO introduced the technology of center adding coke. A certain amount of coke is added from the top of the furnace to the center of the blast furnace to reduce the coke-coke ratio in the central area of ​​the blast furnace so as to improve the air permeability of the center. Through the use of this technology, WISCO Iron and Steel Works has maintained a steady and smooth blast furnace status over the years, and its economic and technical indicators have been gradually optimized. At present, the gas utilization rate of 48%, the fuel ratio of 515kg / t, narrowing the gap with the advanced blast furnace.