关键词: 离散单元法, 单螺杆, 颗粒输送

Abstract:

Based on the discrete element method, this paper uses modeling software Solidworks and discrete element simulation software EDEM to simulate the transport movement of solid particles in a single?screw extruder. The research includes the influence of material parameters such as the shape and size of the particles, the screw speed, and structural parameters such as the number of screw edges and the inclination angle of the screw edges on the solid transport capacity, as well as the movement and filling of the particles inside the barrel. The results show that the single screw?barrel model has the best particle size and the best particle shape; the smaller the particle size, the better the filling effect; the maximum particle transport capacity is when the spiral angle is 105°.

Key words: Discrete element method, Single screw, Particle transport