News


October 18, 2021

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.

September 10, 2020
IsaMill Testing Accreditation

In September 2020, Institute TOMS was given the latest accreditation certificates by Glencore Technology (Australia) for running UFG testing in a stirred mill – IsaMill M4.

August 30, 2020
Derrick Screen Pilot-Scale Testing

In August 2020, Institute TOMS (Irkutsk) in partnership with Thrane Teknikk initiated testing of a fine screening technology using Derrick Stack Sizer 2SG 48-60R-1STK by Derrick Corporation.

June 26, 2020
JK Drop Weight / SMC Test Accreditation

On the 12th of May 2020, Institute TOMS received an official confirmation from JK Tech Pty that the testwork quality and the personnel competencies are in conformity with high international standards.

June 16, 2020
A new up-to-date laser particle size analyzer Malvern Mastersizer was installed and put into operation in Institute TOMS

In June 2020, a new up-to-date laser particle size analyzer Malvern Mastersizer was installed and put into operation in Institute TOMS.

Main page/Our company/Last news/Accreditation to perform...

News

October 18, 2021

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.

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