Abstract: The design of the 800,000 tons / year of silica sand bar mill plant safety drum sieve, into the hopper from the main, roller, roller circle, the center axis, the collection hopper, rack, power systems, transmission and other components. The paper highly completed a roller screen design, the proof of transmission programmed, on the basis of a transmission system in the motor, reducer, the roller-axis and the choice of design and calculation. A transmission system in the Couplings, Bearings , Bearing boxes, and other parts of the design and selection and so on. The mechanical design is simple in structure, and less power consumption, such as reasonable and practical effectiveness. Keyword: drum sieve、 transmission feasibility studies、 motor、reducer
