Abstract：Abstract：Start from analyzing and summarizing the internal links between a number of factors in pulverized coal injection technique of dense-phase (hereinafter, referred as PCITDP), TISCO explored and mastered the fundamental principles of PCITDP. On the top of that, it successfully achieved from the production approach, process & equipment, technical operations on the optimization of injection to realize excellent conditions, such as dense-phase injection, high coal-ratio, low cost and long life. TISCO broke through an assertion made by a number of foreign companies that there is a limitation of 50kg/kg solid-gas ratio under relatively high pressure injection. It is also opening up a new pass at a relatively low-pressure condition. The experiences of TISCO have proved that: both a 70kg/kg solid-gas ratio under 300m3 grade blast furnace and 60kg/kg solid-gas ratio under 1000m3 grade are achievable, even in blast furnace with relatively high hot blast pressure of 4000m3, it can also realize a outstanding result by achieving 40kg/kg solid-gas ratio.
吉永业. 关于太钢浓相喷煤技术的优化[J]. 钢铁, 2010, 45(8): 20-20.
Ji Yong-ye. The optimization of pulverized coal injection technique of dense-phase in TISCO. Iron and Steel, 2010, 45(8): 20-20.
2010, Vol. 45 
