关键词: 旋回破碎机, EDEM仿真, 能耗模型, 响应面分析, 参数优化

Abstract: Gyratory crusher is the key coarse crushing equipment in the material crushing link, the bulk of the broken material is large, the motion state of the material in the crushing chamber is complex and changeable, especially the key working parameters have a great impact on energy consumption, domestic related enterprises lack the theoretical model of crushing energy consumption to guide the reduction of energy consumption in the design and manufacturing process. Based on the basic parameters of Metso 60-110E gyro crusher in Finland, this paper uses Solidworks to build a three-dimensional model. Based on the discrete element simulation software EDEM, it analyzes the influence of key parameters such as precession Angle, bottom Angle of moving cone, speed of moving cone, and size of ore outlet on energy consumption of the crusher, and establishes a theoretical prediction model of energy consumption of the crusher. The key parameters of the gyratory crusher are obtained. The results of response surface analysis and model variance analysis show that the precession Angle and cone speed have the most significant influence on the energy consumption model. When the same crushing force is obtained, the precession Angle is 0.48°, the bottom Angle of the moving cone is 79.99°, the rotating speed of the moving cone is 130.00 r /min, and the size of the ore outlet is 166.24mm, the performance of the gyratory crusher is optimal. Compared with the unit energy consumption of the gyratory crusher under the original working parameters, the energy consumption is reduced by about 1.9%. Finally, by comparing with the field data, the model is basically reliable. The model can provide reference for the design and energy consumption prediction of high performance gyratory crusher.