作者：Sangbae CHOI,Raehyeong PARK,Gideok YANG,Yeonghyeon KIM

作者单位：Chosun Refractories Co., Ltd.

刊名：China's Refractories

ISSN：1004-4493

出版年：2024-06-15

卷：33

期：2

起页：22-26

止页：

分类号：TQ175.1

语种：英文

关键词：

内容简介

This study aims to provide the basic knowledge for furnace refractory design by investigating refractory property changes occurred in a hydrogen atmosphere. Since refractory bricks are thermodynamically stable in a hydrogen atmosphere at 1 100 °C, we tried to find out the minute changes. In this experiment, a refractory brick was prepared by andalusite, mullite chamotte, and clay as raw materials and heated to 1 100 °C in a 100% hydrogen atmosphere for 72 h. It was found that the strength of the brick was decreased and the color was changed to black by the reduction of impurities. And in addition, this study covered research on the slaking risk of Mg O raw materials because the minimum temperature is expected to 400 °C in fluidized reduction furnaces unlike shaft furnaces.