For the expansion project, which aims to double the mine's concentrator milling capacity from 60,000 to 120,000 metric tons per day (mt/d), ABB is supplying two 15-megawatt gearless mill drive
systems and two high pressure grinding rolls (HPGR) with 2 x 2,650-kW drive systems.
ABB was chosen not only for its state-of-the-art, application-specific drive solutions with market unique features, but also for its expertise in grinding applications, with 125 gearless mill drive
installations and 63 HPGR references worldwide, anda large number of installed or ordered units in Peru (23 gearless mill drives
and 17 HPGRs, including Toquepala).
Other topics include inflections in hydrocyclone efficiency curves, the influence of slurry theology on stirred media milling of limestone, the selection of mill liners, the gearless mill drive
, and ball mill circuit models for improving plant performance.
Earlier, ABB has supplied a cement grinding line to the plant, comprising a gearless mill drive
(GMD) and a vertical mill with ABB slip ring motors.
In the past, grinding mills operating between 18 MW and 28 MW required a large electrical wrap-around motor, known as a Gearless Mill Drive
The contract covers two gearless mill drive
systems for Anglo Platinum's mill in Mokopane, as well as pre-engineering and related services, spare parts, transformers, cabling, material delivery, supervision of installation, and commissioning.
At the heart of Newmont Gold Co's new refractory ore treatment plant is a 15,000 hp ABB gearless mill drive
, the largest such motor in use on a ball mill today.
ABB has repackaged its service offering for gearless mill drive
(GMD) remote diagnostic services with the launch of a product package offering two new modules.
Since designing its first gearless mill drive
in the late 1960s, ABB has accumulated over forty years of experience in optiA[degrees]mizing gearless solutions for grinding applications.
ABB s delivery included one gearless mill drive
system (GMD) for a 40-feet semi-autogenous mill and two low-speed dual pinion ring-geared mill drive systems (RMDs) for two 26-feet ball mills; making Mount Milligan s grinding circuit one of the most advanced and powerful in North America.
ABB, the leading power and automation technology group, has successfully commissioned three gearless mill drive
systems (GMDs) at Codelco s Mina Ministro Hales (MMH) in Chile.
ABB has purchased the Alstom s ring motor business to raise its gearless mill drive