WANG Qiang
,
WU Ye-ming
,
QIU Sheng-tao
,
ZHAO Pei
钢铁研究学报(英文版)
A computational model of thermal behavior of the top-surface slag layers in continuous casting mold was applied to interpret the thermal insulation of mold powder. The temperature drop of liquid steel caused by heat removal at the interface of molten steel and slag in mold was proposed to evaluate the thermal insulation of mold slag. The calculation results show that slag consumption is one of important factor influencing the temperature drop, while the casting speed has no obvious effect on it. With the increase of slag consumption, the temperature drop is increased.
关键词:
thermal insulation
,
temperature distribution
,
heat flux
,
temperature drop
FENG Jun-xiao
,
XIE Zhi-yin
,
CHEN Yan-mei
钢铁研究学报(英文版)
The temperature distribution of iron ore pellet bed in grate has a significant effect on pellet production and quality control, but the related work is scarce. A well-designed test was successfully carried out by means of tracking measurement and the temperature distribution and variation in pellet layers were obtained. The effects of blast temperature, blast velocity and oxidation reaction on the pellet layer temperature were studied. According to the analysis, the inlet air temperature in the up-draught drying zone (UDD) and blast temperature in the Preheating I (PH I) zone should be raised, and the length of the down-draught drying zone (DDD) should be properly increased.
关键词:
grate
,
iron ore pellet bed
,
temperature distribution
,
industrial test
