摘要
近年来,日本、美国和欧洲国家一些高炉的煤比已达200kg/t。这些国家实现高炉大喷煤量所采取的主要技术措施是:①采用具有更高煤粉燃烧率的新型双枪喷吹;②改善原燃料质量,采用优质烧结矿,提高焦炭强度,降低渣量;③改进炉料分布,控制软熔带形状,调节回旋区状况。
Recently,the PCI rate over 200 kg/t was successfully attained on several BFs of Japan, U.S.A. and Europe. In order to stabilize operation of BF with high PCI rate,following technical measures were taken:①using new double lances with high pulverized coal combustion efficiency; ② improving the burden properties; ③controlling the cohesive zone shape by improving burden distribution,and adjusting of the raceway condition.
出处
《炼铁》
北大核心
1998年第1期22-25,共4页
Ironmaking
