Grinding analysis of Indian coal using response surface methodology

作     者：Twinkle Singh Aishwarya Awasthi Pranjal Tripathi Shina Gautam Alok Gautam Twinkle Singh;Aishwarya Awasthi;Pranjal Tripathi;Shina Gautam;Alok Gautam

作者机构：Jaypee University of Engineering & Technology A-B RoadRaghogarh Guna India Shroff S. R. Rotary Institute of Chemical TechnologyAnkleshwar Gujarat India 

出 版 物：《International Journal of Coal Science & Technology》 (国际煤炭科学技术学报（英文）)

年 卷 期：2016年第3卷第2期

页      面：184-190页

核心收录：

学科分类：081702[工学-化学工艺] 0808[工学-电气工程] 080703[工学-动力机械及工程] 08[工学] 0817[工学-化学工程与技术] 0807[工学-动力工程及工程热物理] 0818[工学-地质资源与地质工程] 0815[工学-水利工程] 0813[工学-建筑学] 0814[工学-土木工程] 

主　　题：Coal grinding Ball mill Grinding time Response surface methodology 

摘      要：The present work discusses a systematic approach to model grinding parameters of coal in a ball mill. A three level Box-Behnken design combined with response surface methodology using second order model was applied to the experiments done according to the model requirement. Three parameters ball charge （numbers 10-20）, coal content （100-200 g） and the grinding time （4-8 rain） were chosen for the experiments as well as for the modeling work. Coal fineness is defined as the dso （80 % passing size）. A quadratic model was developed to show the effect of parameters and their interaction with fineness of the product. Three different sizes （4, 1 and 0.65 mm） of Indian coal were used. The model equations for each fraction were developed and different sets of experiments were performed. The predicted values of the fineness of coal were in good agreement with the experimental results （R2 values of dso varies between 0.97 and 0.99）. Fine size of three different coal sizes were obtained with larger ball charge with less grinding time and less solid content. This work represents the efficient use of response surface methodology and the Box-Behnken design use for grinding of Indian coal.