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一目前,我省大部分铁厂烧结矿碱度CaO/SiO_2为1.1～1.5。氧化镁3～4%,配少量白云石粉。个别的不配(因冶山、凤凰山、利国等矿粉含氧化镁都有3%左右,有的更高)。国内重点企业大多数也是生产这种碱度烧结矿,氧化镁2.5～4%,称它为自熔性烧结矿(注一)。一些研究工作者指出,这种烧结矿的强度比2.0以上(或1.6以上)的高碱度烧结矿差,比1.0以下的低碱度烧结矿也差。为了解决这个问题,他们建议,使用高碱度烧结矿,或同时使用高低两种碱度
A present, most of our iron ore sinter basicity CaO / SiO_2 1.1 ~ 1.5. Magnesia 3 ~ 4%, with a small amount of dolomite powder. Individual unworthiness (due to Ye Shan, Phoenix Mountain, Lee and other mineral powder containing magnesium oxide is about 3%, and some higher). Most of the key domestic enterprises also produce this basicity sinter, magnesium 2.5% to 4%, calling it a self-fluxing sinter (Note 1). Some researchers have pointed out that the strength of this sinter is worse than high alkalinity sinter 2.0 or above (or above 1.6) and lower than 1.0 for low alkalinity sinter. In order to solve this problem, they suggested that the use of high alkalinity sinter, or both high and low alkalinity