ABSTRACT

In the present work, optimization of the newly developed vibrating screen’s operational parameters was carried out to obtain a high response parameter. The operational parameters considered in the present work were moisture content, angle, and frequency. The Taguchi L27 design technique was used to optimize three different operational parameters to obtain high screening efficiency of coal in the vibrating screen. The maximization of screening efficiency was obtained by selecting the “larger the better” condition for developing the model. The regression coefficient of 99.6% shows the close relationship between the predicted and experimental values. The lower value mean error and standard deviation of normal probability indicate that the developed model has less error. From the optimization results, it was clear that the 4% moisture content (low level), 1-degree angle (low level), and 9 Hz frequency (medium level) yielded high screening efficiency. Further, a confirmation test was carried out with the optimized condition, which has yielded a screening efficiency of 84.40%. The results showed that the Taguchi technique could be applied to study the influential operational parameters for maximizing the vibrating screen efficiency.

摘要

在目前的工作中，对新开发的振动筛的运行参数进行了优化，以获得高响应参数。目前工作中考虑的操作参数是水分含量、角度和频率。采用田口 L27 设计技术优化三个不同的操作参数，以获得振动筛中煤的高筛分效率。筛选效率的最大化是通过选择“越大越好”的条件来开发模型。99.6%的回归系数显示了预测值和实验值之间的密切关系。正态概率的值均值误差和标准差越低，表明所开发模型的误差越小。从优化结果来看，很明显，4% 的水分含量（低水平）、1 度角（低水平）和 9 Hz 频率（中等水平）产生了高筛选效率。进一步在优化条件下进行确认试验，筛选效率为84.40%。结果表明，田口技术可用于研究影响振动筛效率最大化的操作参数。