Speakers
Mr
Li ZHU
(School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing)Dr
Wenlong ZHAN
(School of Materials and Metallurgy, University of Science and Technology Liaoning)
Description
The blowpipe of blast furnace (BF) air supply apparatus is always the weakest link of the hot blast pipe system. The local air leak, high surface temperature and short service life of blowpipe were ubiquity in the air supply apparatus after being used for a period of time. The average service life of No.2 BF tuyere blowpipe with conventional liner in Shouqin Company was 250 days at the initial stage of blowing-in. By improving the lining materials, the tuyere blowpipe adopted the molten silica-based composite refractory as lining material so that the thermal conductivity decreased from 0.812 W/ (m•℃) to 0.381 W/ (m•℃). Finally, the average service life of the tuyere blowpipe increased up to 702 days, which was twice times more than before, providing guarantee for the stable production of blast furnace
Author
Mr
Li ZHU
(School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing)
Co-authors
Mr
Guoyou LIU
(Shouqin Metal Materials Co.,Ltd.)
Prof.
Junhong ZHANG
(School of Materials and Metallurgy, University of Science and Technology Liaoning)
Mr
Kai WANG
(Shouqin Metal Materials Co.,Ltd.)
Prof.
Keng WU
(School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing)
Dr
Qinghai PANG
(School of Materials and Metallurgy, University of Science and Technology Liaoning)
Dr
Wenlong ZHAN
(School of Materials and Metallurgy, University of Science and Technology Liaoning)
Mr
Yulin GUO
(Beijing Yaxinda Industry and Trade Co., LTD.)
Prof.
Zhijun HE
(School of Materials and Metallurgy, University of Science and Technology Liaoning)