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铁矿 煤球团在空气中能够还原的原因是 :从球团排出的可燃性气体在球面附近的火焰面上燃烧 ,在火焰面内侧是氧化性较弱的可燃性气体和燃烧产物的混合物 ,铁矿 煤球团在弱氧化性气氛中具有抗氧化性 ;在火焰面燃烧放出的热量向球团传递 ,进行自热还原
Iron ore briquettes can be reduced in the air because: the combustible gas emitted from the pellet in the vicinity of the spherical surface of the flame burning in the flame surface is less oxidizable flammable gas and the mixture of combustion products, iron Mine briquettes in a weak oxidizing atmosphere with oxidation resistance; released in the flame surface heat transfer to the pellet, the autothermal reduction