In July, specialists from Institute TOMS participated in the conference "Heap Leaching in Cold Climates" held in Khabarovsk.
This year Institute TOMS celebrated Metallurgist's Day on a one-day rafting trip in the lower reaches of the river Irkut.
On June 21st, almost half of the periodic table elements ran through the picturesque streets of Irkutsk during the Servico Marathon. They are Valuable Components – a running team of Institute TOMS.
Members of Institute TOMS' Mining and Geological Audit and Consulting Department gained high professional recognition and received prestigious awards
Institute TOMS in collaboration with LITS company successfully commissioned a wet high intensity magnetic separator (WHIMS). After our specialists сompleted the training, TOMS laboratory was accredited to run test works using this equipment.
News
Accreditation to perform the Jar Mill test
In September 2021, the Metso:Outotec Jar Mill arrived and was installed in the Institute TOMS laboratory. The Institute’s comminution team was trained by M:O’s specialists and the lab was granted accreditation to perform the Jar Mill testing.
The data derived from the test allows a curve of specific energy vs. 80% passing product size (or other requested size fraction) to be generated, i.e. energy consumption required to grind material to a target size.
To run the test a 10-15 kg representative sample is required. Any coarse bulk material can be used as the test feed; it will be conditioned to a proper state by preliminary comminution operations.
Testing of fine products (finely ground ore, middling products, concentrates) is possible as well. Individual sample size and weight requirements will be determined depending on the material properties, specified targets and goals.
The mining industry makes use of different comminution technologies for secondary grinding duty, e.g., ball mills or high-intensity grinding mills. Nowadays, vertical stirred mills (Vertimill by M:O) are common in fine grinding applications. Since recently, vertical mills have been growing to become an alternative to ball drum mills within secondary and tertiary grinding circuits.
The bench-scale Jar Mill test using the Metso:Outotec procedure is aimed at direct sizing and design of commercial Vertimills.
