New insights in double roll crushing

Double roll crushers (DRC) are known for high throughputs of sometimes sticky materials such as overburden or oilsands (see picture). However, its applicability for ore and hard rock processing is often underestimated in recent decades.

Our new paper in "Minerals Engineering" presents results of extensive investigations exploring the influences of compressive strength, roll peripheral speed, feed particle size distribution, and single large oversized lumps on throughput of a toothed double roll crusher. A pilot-scale crushing plant was deployed to test the crusher with limestone, andesite, and diabase. Contrary to other crusher types, within the physical limits of the machine, the throughput of DRC is barely influenced by the feed material’s compressive strength, while the feed particle size distribution or even single oversize lumps in the feed may have a substantial impact.

You are welcome to read or download your personal copy of the report on ScienceDirect by clicking on the following link before September 28, 2023. No sign up, registration or fees are required:

https://authors.elsevier.com/a/1hZ2x3A%7EK2j3hs