Patent attributes
A mineral breaker 10 including a row of side-by-side breaker drum assemblies 30 having radially projecting breaker teeth 38. The row includes at least four breaker drum assemblies 30 arranged to define an inner pair DB of adjacent breaker drum assemblies 30a located in-between a pair of outer breaker drum assemblies. The inner pair of breaker drum assemblies 30a defines therebetween a mineral deposit region DM for receiving mineral in-flow. The breaker drum assemblies 30a of said inner pair DB of breaker drum assemblies being rotated in opposite directions such that, in use, breaker teeth 38 on each of said inner breaker drum assemblies 30a act upon mineral being deposited in said deposit region DM to cause agitation of the deposited mineral in-flow in order to encourage undersized mineral to pass therebetween whilst preventing oversized mineral passing therebetween. Each breaker drum assembly 30a of said inner pair DB of breaker drum assemblies acting upon oversized mineral in the material in-flow to cause the oversized mineral to be moved outwardly towards a respective one of said outer breaker drum assemblies.