In 2009,the pig iron output of China increased dramatically up to 543.75 Mt and was 15.87%higher than that in 2008,accounting for 60.53%of the world production.The processing of pig iron must consume huge amount of ir...In 2009,the pig iron output of China increased dramatically up to 543.75 Mt and was 15.87%higher than that in 2008,accounting for 60.53%of the world production.The processing of pig iron must consume huge amount of iron ores and coal and consequently leads to the shortage of ores and cokemaking coals supply,with prices soaring but quality worsening remarkably.How to maintain or even improve the efficiency of blast furnace production under negative conditions of constantly worsening resources of iron ore and coal has become an important scenario the Chinese ironmaking industry must face.In this paper,the production with high coal injection rate,low fuel rate and big productivity in the Wuhan Iron and Steel Corporation(Group) was introduced and revealed.The quantitative correlation between blast furnace production efficiency and diverse technical measures through combined mass-heat balances and gas-liquid counter-current flow dynamics analysis.Moreover,potential problems and countermeasures in ironmaking by feeding high Al_2O_3 and low grade iron ores were also discussed.展开更多
我国把节能降耗作为缓解能源需求过快增长压力、破解资源环境约束、促进发展方式转型的重要抓手,已经取得了举世瞩目的成就。2005年以来单位GDP能耗累计下降33.8%,节约能源达15.5亿t c e,减排二氧化碳超过30亿t,是同时期全球节能和应对...我国把节能降耗作为缓解能源需求过快增长压力、破解资源环境约束、促进发展方式转型的重要抓手,已经取得了举世瞩目的成就。2005年以来单位GDP能耗累计下降33.8%,节约能源达15.5亿t c e,减排二氧化碳超过30亿t,是同时期全球节能和应对气候变化贡献最大的国家。在生态文明建设背景下,要进一步发挥节能"第一能源"作用,把节能作为污染物和二氧化碳减排的最有效途径,作为培育经济增长新动能的重要源泉,通过加快能效赶超升级,确保生态文明建设和能源革命取得切实成效。展开更多
文摘In 2009,the pig iron output of China increased dramatically up to 543.75 Mt and was 15.87%higher than that in 2008,accounting for 60.53%of the world production.The processing of pig iron must consume huge amount of iron ores and coal and consequently leads to the shortage of ores and cokemaking coals supply,with prices soaring but quality worsening remarkably.How to maintain or even improve the efficiency of blast furnace production under negative conditions of constantly worsening resources of iron ore and coal has become an important scenario the Chinese ironmaking industry must face.In this paper,the production with high coal injection rate,low fuel rate and big productivity in the Wuhan Iron and Steel Corporation(Group) was introduced and revealed.The quantitative correlation between blast furnace production efficiency and diverse technical measures through combined mass-heat balances and gas-liquid counter-current flow dynamics analysis.Moreover,potential problems and countermeasures in ironmaking by feeding high Al_2O_3 and low grade iron ores were also discussed.
文摘我国把节能降耗作为缓解能源需求过快增长压力、破解资源环境约束、促进发展方式转型的重要抓手,已经取得了举世瞩目的成就。2005年以来单位GDP能耗累计下降33.8%,节约能源达15.5亿t c e,减排二氧化碳超过30亿t,是同时期全球节能和应对气候变化贡献最大的国家。在生态文明建设背景下,要进一步发挥节能"第一能源"作用,把节能作为污染物和二氧化碳减排的最有效途径,作为培育经济增长新动能的重要源泉,通过加快能效赶超升级,确保生态文明建设和能源革命取得切实成效。