摘要
为得到优质高强度的高炉金属化球团,研究了不同MgO/SiO2比值和焙烧温度对煤粉添加量为5%的含碳球团性能的影响。结果表明：当含碳球团中的煤粉配比为5%、膨润土配比1.5%、MgO/SiO2一定时,随着焙烧温度（1 200-1 350℃）的升高,成品球团抗压强度呈先增加后降低的趋势,且在1 300℃时强度最大（2 138 N/球）。焙烧温度过低,球团抗压强度较低,但焙烧温度过高,球团内部过熔化,产生大量孔洞,强度也较低。
An investigation on iron-coal pellet with MgO was carried out in order to improve its compression strength.It shows that iron-coal composite pellet＇s strength increase first and then decrease with an assembling roasting temperature（1 200-1 350 ℃） in the condition 5% coal and 1.5% dolominite,and got its maximum at 1 300 ℃,while the temperature is higher than that value,the compression strength will be decreased due to the inner pore,and lower than it,the strength was detoreated.
出处
《钢铁》
CAS
CSCD
北大核心
2011年第2期18-21,共4页
Iron and Steel
关键词
含碳球团
MGO
抗压强度
iron-coal pellet
MgO
compression strength
