Speaker
Dr
Yue Kang
(Northeastern University)
Description
Blast furnace slag(BFS) is the most important by-product in iron and steel industry. Due to its high output and high slag temperature, the BFS is a very good heat source. Recovery of sensible heat from BFS is essential for saving energy, reducing emission and improving energy utilization efficiency in iron and steel industry. The process of bead-forming of BFS by gas quenching can effectively recover the waste heat energy of BFS and improve added- value of the BFS product. This paper studies the influence of slag basicity, nozzle and gas quenching pressure on granules’ diameter distribution and bead-forming effect by gas quenching. The experimental results show that the slag granule diameter distribution obeys normal distribution and the peak of BFS granule diameter appears at 1mm-2.5mm; the bead-forming effect by gas quenching is the best when the basicity is controlled at 1.2, the mach number of laval nozzle is 1.6, and gas quenching pressure is 0.3MPa.
Author
Dr
Yue Kang
(Northeastern University)
Co-authors
Dr
Chao Liu
(Northeastern University)
Prof.
Hongwei Xing
(North China University of Science and Technology)
Prof.
Maofa Jiang
(Northeastern University)
Prof.
Yue Long
(North China University of Science and Technology)
Prof.
Yuzhu Zhang
(North China University of Science and Technology)