Specialist crusher modelling technology
Kinematic Crusher Model
Mechanistic modelling of cone and gyratory crusher performance.
KCM predicts throughput, product size, power, crushing force and pressure from chamber geometry, rock breakage properties and operating conditions. Liner wear modelling extends the assessment through the operating life of the chamber.
KCM is applied by Met Dynamics through specialist consulting engagements, from individual machine and liner assessments to crushing circuit studies.
Model basis
The crusher and the rock in the same calculation
KCM combines chamber and mantle geometry, particle motion equations and a population balance breakage model. It follows particle classes through successive crushing events and calculates the associated breakage energy and loading.
Chamber geometry, closed-side setting, eccentric throw, speed, feed size and material strength can therefore be evaluated together. The model connects process performance with the mechanical conditions that produce it.
KCM was jointly developed by Met Dynamics and Bear Rock Solutions.
Read about KCM at Bear Rock Solutions (opens in a new tab)- Throughput and product size
- Evaluate capacity, reduction and the feed presented to screens or downstream grinding.
- Power, force and pressure
- Investigate loading, energy distribution, packing and operating constraints.
- Liner wear
- Assess changes in chamber profile and the resulting process and loading response.
Chamber behaviour
Geometry, pressure, and liner wear
KCM represents the crusher chamber geometry as mantle and bowl liners wear and calculates how loading develops through the chamber. Liner geometry, nipping and choke conditions, pressure distribution and process performance can therefore be assessed together over liner life.
Applications
Equipment selection, liner performance and circuit studies
Machine and chamber assessment
Compare equipment, liner profiles and operating settings against the required crushing duty.
Performance over liner life
Compare liner options over the operating campaign rather than only in the new liner condition.
Crushing circuits
Integrate KCM with screens, recycle streams and other process equipment in SysCAD steady-state or dynamic flowsheets. Evaluate multistage crushing and pebble crushing changes in their circuit context.