干熄焦除尘灰代替部分喷吹煤的研究与应用

摘要

Coal injection experiments with different oxygen enrichment and different proportions of de-dusting ash show that the combustion rate of blast furnace PCI coal doesn’t change so much with addition of de-dusting ash up to 5%.In actual application,addition of 1.3% de-dusting ash brings about less influence on blast furnace indexes,but remarkable economic and environmental benefits.%不同富氧率、不同配入比例下的喷煤试验研究表明，除尘灰添加比例为5％左右时，对高炉喷煤的燃烧率影响不大，实际应用中，除尘灰配加1．3％左右，对高炉指标影响较小，经济和环保效益显著。