摘要
为了在较小的试验工作量情况下取得可信度高的磨机利用系数与介质充填率、料球比和磨矿时间关系的数学模型,采用Design-Expert 8.0软件对磨矿试验方案进行设计,并对试验结果进行模型拟合和试验验证。结果表明:单因素对磨机利用系数影响的强弱顺序为料球比>介质充填率>磨矿时间,交互作用对磨机利用系数影响的强弱顺序为介质充填率与料球比>料球比与磨矿时间>介质充填率与磨矿时间。在介质充填率取35.79%、料球比取1.12、磨矿时间取42.09 min情况下,磨机利用系数取得最大值,预测值达0.298 t/(m3·h)。Design-Expert 8.0软件推荐的几组优秀参数组合所对应的磨机利用系数预测值与验证试验结果非常接近,说明Design-Expert 8.0软件可以快速、高效、准确地对磨矿试验方案进行设计和参数优化。
In order to obtain a high reliable mathematical model of mill utilization coefficient with medium filling rate,material to grinding medium ratio,grinding time under small test work,grinding test was designed using Design-Expert 8.0 software,and the results were made model fitting and vertification.The results showed that single-factor influencing the mill utilization coefficient is weakened by grinded material to grinding medium ratio ＞ medium filling rate ＞ grinding time.Its interaction＇s effect on the mill utilization coefficient are weaked as medium filling rate ＆ material to grinding medium ratio ＞ material to grinding media ratio ＆ grinding time ＞ medium filling rate and grinding time.Mill utilization coefficient reaches maximum,predictively at 0.298 t/（m3 · h）,with medium filling rate of 35.79％,material to grinding medium ratio of 1.12 and grinding for 42.09 min.The predicting parameters of mill utilization coefficient derived from Design-Expert 8.0 closely approached the test results,which means that Design-Expert 8.0 software can be used to design and optimize grinding test quickly,efficiently and accurately.
出处
《金属矿山》
CAS
北大核心
2014年第5期110-113,共4页
Metal Mine
