Optimum Design of Bulk Coal Transfer Chute Structure

In this paper, taking the design of coal transferring chute as an example, firstly, the theoretical calculation model is established to carry out the concept design; secondly, the characteristics of bulk coal are tested to obtain the related basic parameters such as density, bulk density, coefficient of restitution, the angle of wall friction and the angle of internal friction, and so on. Then, the L box test is used for calibration, and the DEM analysis simulation is performed for bulk coal. Combining the advantages of theoretical calculation and DEM, the optimum structure design of coal transferring chute could be achieved effectively. Thereby the capacity of transferring coal is improved, and the production of dust would be reduced fundamentally. Finally, the engineering application verifies that this method is reasonable and effective.