ABSTRACT

Performance of the 100 mm water-only cyclone and its design parameters in cleaning minus 3.0 mm Indian coal was successfully evaluated via Taguchi based Grey-Relational-Analysis (GRA) using L₁₆ (Single-level) orthogonal array experimental layout. The Taguchi method integrated with GRA was used as a performance index in analyzing multiple responses i.e., clean coal yield (%yield), ash content (%ash), and recovery of non-ash (%RNA). The parameters chosen were vortex finder diameter (VFD) and spigot diameter (SPD). The study revealed the subsequent optimum parameter levels: VFD of 50 mm (level 4) and SPD of 22 mm (level 1). The goodness of fit confirmed that using the GRG regression model shows a decent level of the prediction within the range of variables selected (correlation coefficient of 0.84). Experimental results obtained through this approach also showed that the parameter vortex finder diameter has the foremost vital impact on the multiple performance characteristics. Analytical results from two confirmation experiments conducted at the optimal parameter combinations further confirmed that the above-mentioned performance characteristics can be effectively improved through this approach.

摘要

使用 L ₁₆通过基于田口的灰色关联分析 (GRA) 成功评估了 100 mm 纯水旋流器在清洁 - 3.0 mm 印度煤方面的性能及其设计参数（单级）正交阵列实验布局。与 GRA 相结合的田口方法被用作分析多个响应的性能指标，即精煤产量 (%yield)、灰分含量 (%ash) 和非灰分回收率 (%RNA)。选择的参数是涡流探测器直径 (VFD) 和套管直径 (SPD)。该研究揭示了随后的最佳参数水平：50 毫米的 VFD（4 级）和 22 毫米的 SPD（1 级）。拟合优度证实，使用 GRG 回归模型显示所选变量范围内的预测水平不错（相关系数为 0.84）。通过这种方法获得的实验结果还表明，参数涡流探测器直径对多个性能特征具有最重要的影响。