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MEI Online: Sizing & Classification: Latest News: December 5th 2001

:: El Nasr Order for Mogensen  

UK-based materials-handling specialist Mogensen has received a repeat order from Egyptian phosphate rock producer El Nasr Mining Co. The order is for two heavy-duty Type S2056 Mogensen sizers. The sizers replace two units supplied by Mogensen in 1984 The new machines are 2 m wide five-deck models and are fitted with twin type BL50-75/6 (4,000 W) Invicta rotary electric vibrators designed to induce a linear vibration. They are lined with vulcanised rubber and fatted with water sprays over the third, fourth and fifth decks.

The units screen wet, crushed phosphate rock, which is fed into them through a 30 mm trommel from a rotary crusher. The oversize material from the screens is passed through a cone crusher before being reintroduced to the screens. Water and fines are pumped to a thickener. According to Mogensen, each sizer handles 150 t/h of <30 mm rock including the recycled material; plus 150 t/h of water. Each unit makes a separation at 1.5 mm, and approximately 60% of the feed solids are finer than 1.5 mm.




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