Optimisation of a Hydropneumatic Roller Mill Suspension

Challenge

Roller mills have to be adapted to different grist or different grist mixtures.

Conditions

• Wide range of possible roller spring stiffnesses
• Reliable operation even with high frequency excitation by the grist

Scope

Robust hydraulic design for high system dynamics

Task

Simulation of the hydraulic roller suspension of a grinding mill under consideration of the dynamic system behaviour with different material stiffnesses

Solution

• Creation of a lever model representing the mechanical parts of the grinder
• Setup of a hydraulic-mechanical simulation model of the grinding mill
• Automatic variation of the minerals stiffness to cover the whole possible operating range of the mill
• Frequency analysis of the simulation results to identify critical operating points
• Optimisation of the accumulator arrangement through simulation by means of parameter variations

Detailed Information

Detailed questions regarding the above-mentioned projects or possible solutions to specific problems will be answered directly by our engineering team.