This year TOMS team has crossed the world’s deepest lake Baikal on a swift-sailing yacht
TOMS specialists have visited the construction site of the copper plant MOF-3 of Almalyk Mining and Metallurgical Complex (Uzbekistan). The construction has been implemented within an investment project “Development of Yoshlik I deposit”. The deposit is rich in such valuable metals as gold, copper, silver, and molybdenum
Institute TOMS took part in an annual contest “Russian Mining Award” which is informally called “Mining Oscar”. The contest is aimed at an independent evaluation and promotion of the best achievements in various fields of mining and processing industry.
In October 2023, Institute TOMS participated in the 19th Mining Forum MINEX Russia 2023 held in Moscow
Institute TOMS became a title sponsor of the International Conference “Plaksin Readings – 2023” which was held in Moscow on October 2nd – 5th.
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.
