UPGRADE OF Kovdorsky GOK.

Enhancing capacity through the upgrade of crushing equipment.

Kovdorsky Mining and Processing Combine is a part of EuroChem Holding and one of the leading factories of Russia’s North-West. The factory provides comprehensive mineral processing and produces three concentrates: iron ore, apatite and baddeleyite.

Kovdorsky GOK has been consistently upgrading the entire equipment fleet to enhance its capacity and performance.

Thus, the upgrade called for replacement of obsolete coarse and medium/fine crushers in order to improve performance, quality of the output and reduce scheduled and emergency downtime.

Professionals of Sever Minerals and Metso studied the objectives for the new equipment and operation conditions in detail. Ore samples were sent to Metso laboratory in Finland to establish physical and mechanical properties of the feed. As a result, the most appropriate solution, which guaranteed that the client would reach the required performance and crush size included several projects:

  • Supplying three Metso С200 jaw crushers and grizzly screens for coarse crushing;
  • Supplying two Metso НР500 cone crushers for medium/fine crushing;
  • Supplying an apron feeder and roller grizzly feeder for medium/fine crushing.

Since their commissioning in 2016, HP500 crushers have been successfully operating for three years. The commissioned equipment allowed to double the capacity of medium/fine crushing. It reduced operating expenses - specific costs for lining, spare parts, power, maintenance and repairs.

Kovdorsky GOK

Coarse crushing upgrade projects started in 2016, when the first С200 crusher was installed. The project is now in its final phase, installation and commissioning of the second С200 crusher with a pre-screening grizzly is complete, installation of the third will start shortly. Each crusher reaches up to 2000 ton/hour allowing to meet all factory needs.

The new cone crushers and jaw crushers are to replace the old ones via a transition frame without reworking the foundations substantially reducing costs of construction and installation and replacement intervals.

At the moment, the apron feeder and roller grizzly feeder are being implemented for medium/fine crushing upstream the medium crusher. This equipment will distribute the load between medium crushers and fine crushers and allow to increase capacity of the entire cascade.

Implementation of the project has already increased the performance and reduced costs for crushing of apatite/magnetite ores of Kovdorsky GOK. The project is expected to be fully implemented in 2020.

Following the upgrade, capacity of the crushing plant will exceed 21 million tons a year, with improved quality of the output crush and reduced operating expenses.

Kovdorsky GOK

Project

Upgrade of medium/fine and coarse crushers.

Feed

Apatite-staffelite ore and apatite-magnetide ore.

Abrasiveness

Medium.

Humidity

up to 1.3%

Equipment to be installed in the project

  • Metso НР500 cone crushers
  • Metso С200 jaw crushers
  • Weg motors
  • AF5 pate feeder
  • roller grizzly feeder
  • automation

Capacity of the crushing plant after the upgrade

over 21 million tons a year