高炉喷补料中Fe2O3含量对其抗CO破坏能力的研究

钢铁研究学报, 2007, 19(5): 10-0.

高炉喷补料中Fe2O3含量对其抗CO破坏能力的研究

孟庆民 , 龙世刚 , 曹枫 , 杨立红

1.1. 安徽工业大学冶金与资源学院, 安徽马鞍山 243002；2. 上海宝山钢铁集团公司研究院, 上海 201900

1.1. School of Metallurgy and Resources, Anhui University of Technology, Ma′anshan 243002, Anhui, China

2. 2. Research Institute, Shanghai Baosteel Group Corp, Shanghai 201900, China

关键词：喷补料;碳沉积;耐压强度;抗CO破坏

Effect of Fe2O3 Content in Gunning Material for BF onAbility to Resist Carbon Monoxide Damage

MENG Qingmin , LONG Shigang , CAO Feng , YANG Lihong

Keywords： gunning material;carbon deposition;compressive strength;resistance to CO damage

以自行开发的适用于高炉中上部使用的喷补料为基料，通过添加Fe2O3粉改变料中的Fe2O3含量，研究了Fe2O3含量对高炉喷补料抗CO破坏能力的影响，初步分析了产生破坏作用的机理。结果表明，随着Fe2O3含量的增加和侵蚀时间的延长，喷补料的气孔率和质量变化微弱，而以耐压强度为代表的力学性能指标急剧降低，因此降低喷补料中Fe2O3含量有利于提高抗CO破坏能力。

The effect of the Fe2O3 content in gunning material on the ability to resist CO damage, and the reaction mechanism of the carbon disposition in refractories are analyzed. The specimens are produced by the gunning mix which is base material used in the top middle part of BF stack with different contents of Fe2O3 powder as additives. The results showed that the porosity and weight of the gunning material changed feebly with increasing the Fe2O3 content and test time, but the mechanical property such as compressive strength decreased rapidly. Therefore, the decrease of the Fe2O3 content will improve the ability of the resistance to CO damage, and prolong the campaign life of the gunning layer.

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