Patent ID: 9188389
Filing Date: 2015-11-17
Classification: F26B

Abstract:
1. A method of dewatering mine tailings, the method comprising: adjusting at least one of (i) a natural slope of a slurry of high permeability material and (ii) a natural slope of a slurry of low permeability mine tailings such that the natural slope of the slurry of high permeability material and the natural slope of the slurry of low permeability mine tailings are within a threshold grade difference of a non-zero surface grade that is defined by a sloped surface; distributing the slurry of high permeability material on the sloped surface to define a high permeability layer; and distributing the slurry of low permeability mine tailings on the high permeability layer to define a low permeability layer, wherein a fluid permeability of the low permeability layer is less than a fluid permeability of the high permeability layer.