ThyssenKrupp Industrial Solutions has won a contract valued in the “higher double-digit million EUR” range to supply a material handling system for the new Oyu Tolgoi underground mine.

The conglomerate will supply a total of nine conveyors with a combined length of 9.5 km, as well as seven transfer towers operating at a design tonnage of 7,100 tons per hour. First production from underground is expected in 2020.

“One of the richest underground copper deposits in the world will soon be accessed with the help of high capacity gearless driven conveyors from ThyssenKrupp,” reported the company on July 25.

From a depth of nearly 1,400 meters beneath the Gobi Desert, the new underground material handling system is planned to transport 95,000 t/d of copper ore up to the surface. The main components are four high lift conveyors each equipped with 1.6-meter wide steel cord belts and dual 5,500 kW gearless drives from Siemens. Further conveyors will feed the main incline conveyors and tie the new underground system into the existing process facility.

“This order again proves that ThyssenKrupp is a strong player in the mining and materials handling industry. We are proud to contribute to this project with our intelligent belt conveyor technology and our strong global project execution capabilities. The system will help the Oyu Tolgoi mine set standards in terms of productivity and safety,” said Torsten Gerlach, CEO of the mining technologies business unit of ThyssenKrupp Industrial Solutions.

ThyssenKrupp disclosed that the new order includes the engineering, design, and supply of the new material handling system, as well as required site support services during the construction and commissioning phases. It will be designed with an emphasis on ease of maintenance. This includes, for example, the ability to quickly replace chute sections as well as idler rolls and belt cleaners. The drive components are massive in terms of size and weight, so great attention will be paid to safely transporting them underground and to ensuring they can be safely exchanged in the future. Overhead bridge cranes are strategically located to not only service the equipment, but also to aid in the erection of the major structures.

The scope of work also includes water and air piping for the required dust suppression equipment, fire protection along all of the underground conveyors and electrical infrastructure to control and power the equipment.

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