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首页> 外文期刊>Scandinavian Journal of Metallurgy >Effect of surface-active species on the foam stability in the EAF slag system
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Effect of surface-active species on the foam stability in the EAF slag system

机译：表面活性物质对电炉渣系统中泡沫稳定性的影响

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摘要

To determine the proper slag chemistry for sound slag foaming characteristics, the concept of a gas hold-up index (epsilon_G) was introduced using a special device during an EAF operation. The gas hold-up index became larger with smaller bubble sizes in the final foaming slag, indicating there was a strong relationship between foam stability and bubble size. Proper slag basicity was determined by measuring gas hold-up indices and effects of the slag components were also defined by the index. Trends of foam stability as a function of basicity and possible surface-active elements were considered to evaluate the foam stability. Gas bubble sizes associated with the foam stability were also dealt with by measuring final foamy slags.
机译：为了确定合理的矿渣化学特性以实现合理的矿渣发泡特性，在电炉操作期间，使用特殊设备引入了气体滞留指数（epsilon_G）的概念。随着最终泡沫渣中气泡尺寸的减小，气体滞留指数变大，这表明泡沫稳定性和气泡尺寸之间存在很强的关系。适当的炉渣碱度是通过测量气体滞留指数来确定的，炉渣成分的影响也由该指数定义。泡沫稳定性随碱度和可能的表面活性元素变化的趋势被认为可评估泡沫稳定性。还通过测量最终的泡沫渣来处理与泡沫稳定性相关的气泡尺寸。

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