中文摘要：

模拟高炉喷吹含氢煤气条件下炉料的变化过程,结果表明,炉料的低温还原粉化率随氢含量增加而增加。随着温度的升高炉料的低温还原粉化率降低。氢含量升高有利于铁氧化物的还原、CO的析碳,温度为900℃时氢对还原矿的碳含量无影响。氢含量升高,焦炭的反应后强度大幅度降低。

英文摘要：

Reduction and transformation of solid charge in blast furnace with gas injection was studied by simulation. The results are： When the H2 content in mixed gas increases, the RDI of solid charge increases ; the RDI of solid charge decreases with the increase of reaction temperature; high H2 content is advantageous for reduction of ferrous oxides and CO decomposition; H2 content has no influence on carbon content of reduced ore at 900℃;the strength of coke after reaction decreases sharply with the H2 content in mixed gas.