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温度稳定地控制在1 400℃左右,计算出氢气还原速率常数在1 400℃下为0.93～1.03g(Fe)/(cm2.min),跟固体碳比较,氢气还原速率快;避免过泡沫渣形成,原料应采用预还原矿。通过进行底吹氢熔融还原试验研究,对了解底吹氢情况下的安全性以及工艺操作参数是很有帮助的,为今后大型的工艺化试验提供经验和理论计算依据。重点介绍氢冶金技术的试验探索和动力学试验结果的分析。
The temperature is controlled at about 1 400 ℃, the hydrogen reduction rate constant is 0.93 ~ 1.03g (Fe) / (cm2.min) at 1 400 ℃, hydrogen reduction rate is faster than that of solid carbon; Formation, raw materials should be pre-reduced ore. It is very helpful to understand the safety of bottom blown hydrogen and the operating parameters of the process by carrying out the research on the bottom-blown hydrogen melting reduction, which provides the basis for theoretical and experimental calculation for the large-scale process test in the future. Emphasis will be put on the exploration of hydrogen metallurgical technology and the analysis of kinetic test results.