Modeling on the Effect of Coal Loads on Kinetic Energy of Balls for Ball Mills
This paper presents a solution for the detection and control of coal loads that is more accurate and convenient than those currently used. To date, no research has addressed the use of a grinding medium as the controlled parameter. To improve the accuracy of the coal load detection based on the kine...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2015-07-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1996-1073/8/7/6859 |
| _version_ | 1828154142126768128 |
|---|---|
| author | Yan Bai Fang He |
| author_facet | Yan Bai Fang He |
| author_sort | Yan Bai |
| collection | DOAJ |
| description | This paper presents a solution for the detection and control of coal loads that is more accurate and convenient than those currently used. To date, no research has addressed the use of a grinding medium as the controlled parameter. To improve the accuracy of the coal load detection based on the kinetic energy of balls in a tubular ball mill, a Discrete Element Method (DEM) model for ball kinematics based on coal loads is proposed. The operating process for a ball mill and the ball motion, as influenced by the coal quality and the coal load, was analyzed carefully. The relationship between the operating efficiency of a coal pulverizing system, coal loads, and the balls’ kinetic energy was obtained. Origin and Matlab were utilized to draw the variation of parameters with increasing coal loads in the projectile and cascading motion states. The parameters include the balls’ real-time kinetic energy, the friction energy consumption, and the mill’s total work. Meanwhile, a method of balanced adjacent degree and a physical experiment were proposed to verify the considerable effect of the balls’ kinetic energy on coal loads. The model and experiment results indicate that a coal load control method based on the balls’ kinetic energy is therefore feasible for the optimized operation of a coal pulverizing system. |
| first_indexed | 2024-04-11T22:35:57Z |
| format | Article |
| id | doaj.art-9e840efd41804655886cba9a20bfacba |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T22:35:57Z |
| publishDate | 2015-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-9e840efd41804655886cba9a20bfacba2022-12-22T03:59:13ZengMDPI AGEnergies1996-10732015-07-01876859688010.3390/en8076859en8076859Modeling on the Effect of Coal Loads on Kinetic Energy of Balls for Ball MillsYan Bai0Fang He1School of Control and Computer Engineering, North China Electric Power University, Beijing 102206, ChinaSchool of Control and Computer Engineering, North China Electric Power University, Beijing 102206, ChinaThis paper presents a solution for the detection and control of coal loads that is more accurate and convenient than those currently used. To date, no research has addressed the use of a grinding medium as the controlled parameter. To improve the accuracy of the coal load detection based on the kinetic energy of balls in a tubular ball mill, a Discrete Element Method (DEM) model for ball kinematics based on coal loads is proposed. The operating process for a ball mill and the ball motion, as influenced by the coal quality and the coal load, was analyzed carefully. The relationship between the operating efficiency of a coal pulverizing system, coal loads, and the balls’ kinetic energy was obtained. Origin and Matlab were utilized to draw the variation of parameters with increasing coal loads in the projectile and cascading motion states. The parameters include the balls’ real-time kinetic energy, the friction energy consumption, and the mill’s total work. Meanwhile, a method of balanced adjacent degree and a physical experiment were proposed to verify the considerable effect of the balls’ kinetic energy on coal loads. The model and experiment results indicate that a coal load control method based on the balls’ kinetic energy is therefore feasible for the optimized operation of a coal pulverizing system.http://www.mdpi.com/1996-1073/8/7/6859coal loadballs’ kinetic energyDiscrete Element Method (DEM)law of motioncontrol method |
| spellingShingle | Yan Bai Fang He Modeling on the Effect of Coal Loads on Kinetic Energy of Balls for Ball Mills Energies coal load balls’ kinetic energy Discrete Element Method (DEM) law of motion control method |
| title | Modeling on the Effect of Coal Loads on Kinetic Energy of Balls for Ball Mills |
| title_full | Modeling on the Effect of Coal Loads on Kinetic Energy of Balls for Ball Mills |
| title_fullStr | Modeling on the Effect of Coal Loads on Kinetic Energy of Balls for Ball Mills |
| title_full_unstemmed | Modeling on the Effect of Coal Loads on Kinetic Energy of Balls for Ball Mills |
| title_short | Modeling on the Effect of Coal Loads on Kinetic Energy of Balls for Ball Mills |
| title_sort | modeling on the effect of coal loads on kinetic energy of balls for ball mills |
| topic | coal load balls’ kinetic energy Discrete Element Method (DEM) law of motion control method |
| url | http://www.mdpi.com/1996-1073/8/7/6859 |
| work_keys_str_mv | AT yanbai modelingontheeffectofcoalloadsonkineticenergyofballsforballmills AT fanghe modelingontheeffectofcoalloadsonkineticenergyofballsforballmills |