| These years, the particle mixing technology has been concerned by a large number of scholars and experts. This topic is based on the mixing process of two types of particles in rotating cylinder, and we want to inspect the affect to mixed results after adding copy board. We could get different data because we could change different style of copy board, different length and angle of copy board, different number of copy board and different fill rate. Finally, we will contrast these datum to find the optimal parameter.The discrete element method which was developed in recent years is a very important numerical analysis method to solve mechanical problems of discontinuities. In this paper, we utilize the discrete element method and related software(EDEM) to simulate two particles in rotating cylinder. Meanwhile, we adopt the idea of Monte Carlo method and analyze the simulation results in unit space, then we can get the feature of change rate of two particle, thus we get the fitted distribution. Further, we divide the rotating cylinder into enough number of unit spaces. To each unit space, we estimate the change situations of particles according to the above-mentioned change rate. On this basis, we can get the change of number of particles in the whole rotating cylinder, as we enlarge the situation in unit space to the rotating cylinder. Finally, we add the copy board to analyze the difference of particle mixed effect in different situation. Thus, we contrast these datum to find the optimal parameter.According to the simulation results, when the copy board is about 0.4 times the length of radius of rotating cylinder, and the specific value of copy board to tube wall is about 0.2 times the length of radius of rotating cylinder, the particle mixing effect reaches optimal. When the loading capacity is about 40% and the number of copy board is 4 or 5, the particle mixing effect reaches optimal. When the angle of copy board is about 75, the particle mixing effect reaches optimal. |
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