Mar 17, 2017 . The invention of the Dorr thickener made possible the continuous dewatering of a dilute pulp whereby a regular discharge of a thick pulp of uniform density took place .. Cyanidation and concentration of gold and silver ores.
Heavy duty construction of tank, sludge hopper and inclined plate packs, as well as . 's inclined plate principle uses parallel inclined plates to minimize floor area . E.g. Sand & Gravel; Potash; Zinc Concentrate; Soil Treatment; Iron Ore.