Abstract : according to material and local heat balance in the blast furnace , refering to the result of oxygen enriched blast and coal injection into blast furnace and use of metallized burden , the influence of burden metallization degree on oxygen enriched - coal injection rate 、 coke rate and productivity is calculated 文摘:根據(jù)高爐物料平衡和區(qū)域熱平衡理論,參照高爐富氧噴煤和使用金屬化爐料的冶煉結(jié)果,計(jì)算了爐料金屬化率對(duì)富氧噴煤率、焦比和產(chǎn)量的影響。
It shows that with a metallization degree of burden more than 40 per cent , blast furnace can t be operated with oxygen enriched blast . combining lower burden metallization degree with oxygen enriched blast and coal injection , higher coal injection rate and higher productivity can be obtained . by use of higher burden metallization degree lower coke rate can be obtained than oxygen enriched blast and coal injection 結(jié)果表明:爐料金屬化率達(dá)到40后,高爐不能富氧操作;較低的爐料金屬化率與富氧噴煤相結(jié)合,能夠獲得更大的噴煤比和更高的產(chǎn)量;使用金屬化率較高的爐料,能夠比富氧噴煤達(dá)到更低的焦比。