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MEI Online: Plant Operation News: Middle East & Asia: February 21st 2007


Click for more info on Flotation '19


:: Siberian Diamond Plant

Last year DRA received a $2m order from the Russian diamond miner Alrosa for three modular DMS plants for alluvial mining operations in the Yakutia province in northern Siberia, near the Anabar river. The 50 tph capacity plants are designed to be compact enough to fit into open top containers while still allowing ease of access for maintenance. The logistics of the project are formidable: the plant is shipped to St Petersburg , railed to Jakutsk 6500 km to the east then trucked north along frozen rivers almost to the Arctic circle. Here it is set up on site using local labour under DRA supervision via a Russian interpreter.

Operations in this region are restricted to about 100 days a year in summer, due to winter temperatures of –40 deg C or below. Even in midsummer, temperatures may stay below –10. Such conditions require low temperature lubricants and special conveyor belting, cabling and switchgear. Plug in cables are used to the power supply to avoid making cable connections on site. In winter, with the plant shut down, equipment liable to damage from the extreme cold is removed and placed in relatively warm storage.

This is DRA’s third venture in the area starting with a single 50 tph DMS plant at Estok in 2004. It was followed a year later by the supply of two 50 tph units at a Kimberlite pipe operation at Aykhol as a replacement for part of the jig section at the existing plant and underlines DRA’s ability to operate successfully in the most adverse environments.




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