Abstract

Compared with the closed screw conveyor, the discharging performance of open-type screw structure has a certain degree of uncertainty. The design of open-type screw structure is firstly presented in this paper. A novel open-type screw discharging structure is developed on the base of the requirement of industry, and structural parameters and operation parameters of screw are given. Based on the discrete element method, the simulation model of spiral discharging performance is built. The influence of the angular velocity of on open-type screw discharging performance is discussed. The analysis results show that the angular velocity of screw has a great influence on the discharge performance in the condition that other parameters remain unchanged. The presented method has an important guiding role and theoretical reference value to design of open-type screw discharging structure.

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