结合工程实践和理论研究,对挡座型3点吊挂/支撑转炉异响振动进行分析,并提出解决方案。通过有限元理论分析和工程测试,发现了该类转炉倾动过程中挡座接触面存在＂交变弹性滑移＂等现象,该现象是转炉产生异响、挡座接触面磨损的主要根源。提出了一种从根本上改进的方案——在大型转炉上采用4点连杆吊挂转炉的设计理论和方案,进行了有限元对比分析结果,该转炉设计基于结构弹性理论体系,将大幅度改善转炉运行水平并提高安全性。该技术已在最大出钢量达280t的转炉上实施。
Combined with engineering practice and theoretic analysis,the bracket type-three point suspension/support type converters′ abnormal sound and vibration was investigated.According to the finite element theory analysis and engineering measurement,some phenomenon,such as ＇alternating elastic slip on brackets＇ contact surface was found to be the main source of converter′s abnormal sound and vibration.An improvement proposal was raised——using four-point support suspension system on mammoth converter,finite element contrastive analysis results show that this kind of converter which was designed based on structure elasticity theory can greatly improve converter′s working quality and safety.This technique has been used for a converter with 280 t of maximum tapping.
参考文献
| [1] | 黄其明;王翔;徐杰 .一种转炉炉壳和托圈的联接装置[P].中国,200920293711.7,2010-08-25. |
| [2] | HUANG Qi-ming;XU Jie;GAO Zhan .Three Point Suspen-sion Converter′s Mechanical System and Elastic Friction Vibra-tion Analysis[J].Advances in Mechanical Design,2011,199-200:1560. |
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