The Effect of Rotor Tip Speed of a Vertical Shaft Impactor on the Collision Energy Spectrum
Conference poster, 2015

The increasing restrictions on natural aggregates have led to a demand for effective production of artificial sand and gravel. VSI crushers are established comminution machines often used in order to improve the sphericity of particles. Due to the difficulty in data collection, the full extent of the particle dynamics inside a VSI crusher has remained unexplored. The aim of this paper is to use DEM simulations to model a full-scale crusher, generate a realistic material flow and make a number of crusher tests with different rotor tip speeds. Each particle’s collision energy compared to its size will provide a spectrum which can be related to the probability of breakage. This will show how increasing rotational speed affects collisions and the impact energy of particles inside the crusher. The result is an increased understanding that can allow optimization and modeling of VSI crushers with higher accuracy.

DEM

Comminution

Discrete Element Method

Vertical Shaft Impactor

VSI

Author

[Person 8cb64051-4df8-44a4-8325-98ad5c3d00b8 not found]

Chalmers, Product and Production Development, Product Development

[Person e796cdbf-45a5-4c84-8ca3-e4aaf5b6cd6a not found]

Chalmers, Product and Production Development, Product Development

[Person c7ab5488-c7e6-40a9-8e9f-4ec2ba26cf11 not found]

Chalmers, Product and Production Development, Product Development

[Person cb932791-d278-48f6-82b6-466b58a65f31 not found]

Chalmers, Product and Production Development, Product Development

Proceedings;Minerals Engineering Conference Computational Modelling 2015 June 10-11

Subject Categories

Mechanical Engineering

Production Engineering, Human Work Science and Ergonomics

Other Natural Sciences

Areas of Advance

Production

More information

Created

10/7/2017