不同质量分数MgO对球团质量的影响

通过某球团厂现有生产所用的矿粉配矿得到不同MgO质量分数的球团矿,运用一系列的试验方案和检测手段找出球团矿最优的抗压强度和冶金性能下的MgO质量分数,并探究了不同MgO质量分数对其球团矿的抗压强度和冶金性能影响的规律。结果表明,MgO质量分数为0.5%时,所生产的球团矿抗压强度最强,随着MgO质量分数的增加,球团矿的抗压强度下降。MgO质量分数为0.5%时,还原度最高,达到了75.59%,随着MgO质量分数的增加,球团矿的还原度下降。MgO质量分数为1%时,低温还原粉化率最大,随着MgO质量分数的增加,球团矿的低温还原粉化率先升高后降低;MgO质量分数为1%时,软化开始温度最高,熔滴温度区间最窄,熔滴性最好,随着MgO质量分数的增加,球团矿的软化开始温度先上升后下降,熔滴温度区间先变窄后变宽。

Effect of different mass fractions of MgO on quality of pellet

Through the ore powder used in the existing production of a pellet plant, the pellets with different MgO mass fraction were obtained by ore blending. A series of experimental schemes and testing methods were used to find out the MgO mass fraction of pellets under the optimal compressive strength and the metallurgical properties. And the law of the compressive strength and metallurgical properties of the pellets with different MgO mass fraction was also studied. The test results showed that the compressive strength of pellets produced with the MgO mass fraction of 0.5% was the strongest, which decreased with the increase of MgO mass fraction. When the mass fraction of MgO was 0.5%, the degree of reduction was the highest, Reaching 75.59%. And with the increase of MgO mass fraction, the reduction degree of pellets decreased. When the MgO mass fraction was 1%, the low-temperature reduction pulverization rate was the largest. With the increase of MgO mass fraction, the low-temperature reduction pulverization rate of pellets increased first and then decreased. When the MgO mass fraction was 1%, the softening start temperature was the highest, the droplet temperature range was the narrowest, and the droplets were the best. With the increase of MgO mass fraction, the softening start temperature of the pellets rose first and then decreased, and the droplet temperature range was first narrowed and then widened.