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| Discussion on Security Early Warning Mechanism of BF Hearth |
| ZHAO Hong-bo1, 2,HUO Shou-feng2，3,HAO Jing-wei4,CHENG Shu-sen2 |
1. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083,China
2. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
3. Beijing North Billion Technology Co., Ltd., Beijing 100041, China
4. China International Engineering Consulting Corporation, Beijing 100048, China |
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Abstract Lots of blast furnaces (BFs) recently face the problem of hearth severe erosion even burnt out accidents. The campaign life of hearth has become the limiting factor for safe and high efficiency production of modern BFs. However, the early warning mechanism of hearth has not been clear due to the lack of system research. Based on the heat transfer calculations, heat load and erosion monitoring for various BF hearths with different volume, structure and refractory, the features of heat load and erosion for different kind hearth were compared and analyzed. The primary detecting elements, software models, evaluating standards and warning methods were discussed. The early warning mechanism of modern BF hearth was proposed.
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Received: 02 August 2012
Published: 18 April 2013
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2013, Vol. 48 
