In December 2022 Institute TOMS successfully proved its expertise for compliance with requirements GOST ISO/IEC 17025-2019 “General requirements for the competence of testing and calibration laboratories”
Udokan Copper company addressed a Letter of Appreciation to Institute TOMS to thank them for proper and timely completion of the complex pre-design and design works
Through 2020 to 2022 within the framework of five separate contracts Institute TOMS successfully completed design works for Bystrinskoye mining company (GRK Bystrinskoye)
An official ceremony marking the commissioning of a concentrate beneficiation facility took place on the 17th of November 2022 at the Andrey Varichev Mikhailovsky GOK (Metalloinvest). Construction of the new beneficiation facility was fulfilled based on the process design criteria and engineering design developed by Institute TOMS.
In November 2022, a positive appraisal report of the Federal autonomous institution “Main Department of State Expertise” was received for the project “Lebedinsky GOK, JSC. Processing plant. Flotation Complex”
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 (USA). The testing is run at screen aperture sizes starting from 45 µm.
The sizer installed in Institute’s TOMS lab corresponds fully to commercial units in terms of its characteristics, which allows fine screening parameters to be one-to-one scaled up. Moreover, high specific throughput of the screen and high efficiency of the resulting separation make it possible to conduct pilot-scale tests and produce sized products for any further process testworks.
Stack Sizer type screens are widely recognized in mining and processing industries and applied as classifying equipment within ore comminution and mid-products regrinding circuits as well as for preparation of the material to be fed to wet magnetic separation, flotation and other process operations.