Derek Parnaby Cyclones International - Mining Technology
Derek Parnaby Cyclones was started in 1960 by Derek Parnaby who developed the world-famous 'Parnaby process' of minerals separation using barrels and cyclones. In 1974 Parnaby Cyclones started to manufacture the Parnaby dense-medium washing plant, which maximises value from coal mining. Dense-medium washing plants for coal mining Derek …