文献类型：期刊文献

英文题名：Numerical Simulation of Heating Systems in Coke Ovens and Longevity Analysis of Checker Bricks

作者：Ang, Jili[1];Jin, Hao[1];Xu, Zhiliang[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China

年份：2025

卷号：48

期号：3

外文期刊名：CHEMICAL ENGINEERING & TECHNOLOGY

收录：;EI(收录号：20251318121907);WOS:【SCI-EXPANDED(收录号:WOS:001450934000001)】；

基金：The authors would like to thank Baoshan Iron and Steel Co., Ltd. (No. R21TAAA420) for the financial support.

语种：英文

外文关键词：Checker brick; Coke oven; Computational fluid dynamics; Coupled model

摘要：To establish a temperature control standard for 7-m coke ovens, a 3D transient coupled model of the combustion, carbonization and regenerative chamber model are developed. The temperature variations of the heating systems during the coking process are calculated by computational fluid dynamics. Microstructural analysis of unused and used clay checker bricks from a coking company, observed by scanning electron microscopy. The results showed periodic temperature fluctuations in the saddle bricks of the combustion chamber and the gas-solid phases in the regenerative chamber. Used bricks exhibited increased porosity and reduced corrosion resistance. Overheating flue gas in the combustion chamber can melt checker bricks in the regeneration chamber, with saddle brick temperature serving as an early warning. Simulations suggest keeping saddle brick temperatures below a critical threshold to prevent damage.