|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals and Materials 2021
||Failure Analysis of The Bellows After Service in Hot Blast Stove System by Dissection
||Wu Jianlong, Chen Hui, Sun Jian, Liang Hailong
|On-Site Speaker (Planned)
High temperature dot, air leakage and even burn out accidents occurred frequently in bellows of hot blast system in metallurgy industry, which seriously affected the stability of hot blast system and brought hidden danger to safety production. Although many treatment measures were employed such as coating and grouting, it had little effect. Through dissection and sampling analysis of the failed bellows, it was concluded that the steel structure of the bellows had cracking hidden danger due to welding quality defects, and other reasons for the failure were the high temperature of the bellows steel structure caused by hot air channeling channel. It was proposed not only to pay attention to steel structure materials and design, but also the performance of internal masonry refractory and masonry quality to ensure the air tightness. Only by optimizing the two aspects together could the service life of the bellows be effectively improved.