Abstract
This paper proposes a fuzzy comprehensive evaluation of ultrafine powders, namely, yield and quality value-based feature selection. Three indicators reflecting product yield and quality were selected to construct a simple and practical fuzzy comprehensive evaluation protocol. The weight set of the indices and the fuzzy evaluation set were calculated based on the analytic hierarchy process (AHP) method. The fuzzy comprehensive evaluation value was worked out as the only comprehensive index for the evaluation of product. The best ultrafine comminution condition will be established through the comparison of the fuzzy comprehensive evaluation values. Single-factor experiments and orthogonal experiments of the main influencing factors of ultrafine comminution were conducted. It was concluded that the importance of each factor is sequentially the concentration, specific surface area (SSA) of the media, and percentage of critical speed (PCS). Moreover, the concentration and SSA of the media were equally important. Ultrafine comminution by ball mill had the best overall performance under the PCS of 85%, the SSA of the media of 0.24 m2/kg, and the concentration of 75%.
Highlights
Grinding has been utilized in manufacturing fine and ultrafine powders for the development of new materials and for improving product quality [1, 2]. e grinding technology can significantly affect the particle characteristics [3], but not a single-objective process [4]
It is difficult to pulverize the particles directly to required particle size, which generally includes pulverization and classification or prepulverization and ultrafine pulverization [5]. e grinding optimization has been studied in the fields of cement production, chemical industry, metallurgical fine grinding, mineral grinding, and other industries [6, 7]
In order to solve the problem of multiobjective optimization, many scholars have established comprehensive evaluation criteria or methods, such as power coefficient measurement method, constraint method, and failure mode and effect analysis (FMEA) method [10, 11]. e optimization of the mineral ultrafine grinding process is a multiobjective optimization problem [4, 12]
Summary
Grinding has been utilized in manufacturing fine and ultrafine powders for the development of new materials and for improving product quality [1, 2]. e grinding technology can significantly affect the particle characteristics [3], but not a single-objective process [4]. E grinding optimization has been studied in the fields of cement production, chemical industry, metallurgical fine grinding, mineral grinding, and other industries [6, 7]. E optimization of the mineral ultrafine grinding process is a multiobjective optimization problem [4, 12]. Erefore, it is difficult to objectively evaluate whether the optimized multiobjective problem is good or not. The fuzzy comprehensive evaluation system, which is based on the analytic hierarchy process, was introduced into the field of ultrafine grinding; Journal of Control Science and Engineering comprehensive indicators were used to optimize the ultrafine grinding process of mineral powders. E study aimed at optimizing the three main factors (the mass of powders smaller than 10 μm , the fractal dimension of particle size distribution and d97) affecting the ultrafine grinding of mineral powders The fuzzy comprehensive evaluation system, which is based on the analytic hierarchy process, was introduced into the field of ultrafine grinding; Journal of Control Science and Engineering comprehensive indicators were used to optimize the ultrafine grinding process of mineral powders. e study aimed at optimizing the three main factors (the mass of powders smaller than 10 μm , the fractal dimension of particle size distribution and d97) affecting the ultrafine grinding of mineral powders
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
