Search

The five rotor models of traditional 850mm, 200*400,200*500,250*500,300*500 and 300*600 were imported into EDEM for dynamic simulation, indicated that the acceleration efficiency of new rotor was better than the traditional. In the new rotor, when the subject rotor radius was the constant, the greater the impact plate installation radius, the better the acceleration efficiency; when the impact plate installation radius was the constant, the greater the subject rotor radius, the better the acceleration efficiency.

The three-dimensional model of new rotor was imported into EDEM for dynamic simulation, the maximum speed and force were analysied in the EDEM,indicating that the material along the deterministic trajectory collide with the impact plate for second acceleration after the first acceleration in new rotor, the velocity after second acceleration was 2.3 times than the first acceleration.The impact force and angle did not substantial effect on the second acceleration by comprehensive comparing,the 69m/s speed and less impact force were generated in the new rotor with 2° impact plate installation angle.

The rotor of vertical shaft impact crusher was modeled by SolidWorks and imported into EDEM for dynamic simulation. The average speed, maximum speed, average force, maximum force with time were analyzed in rotor, so the true law of particles motion in rotor would be revealed, indicated that the speed of particle field in rotor increased with the rotor radius at the time of rotor work steady, about 80% of the particles were accelerated to the maximum speed, and the change of speed affected significantly the particle interactions.

With ADAMS dynamics software to simulate the stone movement in the vertical shaft impact crusher rotor, the law of an impact frequency and load on the throwing ends with the variation of feed size and rotor speed is studied, the reasons that the middle throwing end is most vulnerable to wear failure and the rotor speed is not as high as possible are explained.