Centera Gold operates a large gold mine in Mount Mulligan, north of Prince George, BC. With the price of gold on the rise, the mining company sought to improve its production capacity. They wished to correct the grinding circuit, as it is a bottleneck in terms of capacity.

In collaboration with a local mining engineer, a detailed audit of the system was performed. TRINUM was commissioned to modify the sorting system of the crushing circuit to address problems such as chute blockage, spillage, dust and material accumulation. The ultimate goal is to unclog the secondary crusher and thus increase the plant’s processing capacity by 18%.

We modeled the sorting system with our specialized flow simulation software. Various solutions were investigated. Based on these digital studies, we designed a sorting and mobile chute system to better separate the different grain sizes and thus optimize crushing efficiency.

With the increase in tonnage produced by secondary crushing, the stacking conveyor at the exit was also modified to accept more material. TRINUM therefore completed the engineering required to modify the head chute and strengthen the structure.

Isometric view of Secondary Crusher Feed from Trinum S.A. on Vimeo.