Patent ID: 7424982
Filing Date: 2008-09-16
Classification: C02F,F26B,Y02W

Abstract:
1. A device for turning and translating a pasty or granular material (M) spread out in a layer (C), in particular sludge ( 1 ) coming from a station for purifying residual urban or industrial water, comprising a rotary shaft ( 2 ) supported above the layer of material, transversely to the translational direction of the material, a means ( 3 ) for turning the material, extending at least partially radially with respect to the shaft ( 2 ) and driven in rotation by this shaft in order to penetrate the layer, and a means ( 4 ) for cutting the layer (C) of material, held at a radial distance (g) from the rotary shaft ( 2 ) and driven in rotation by this shaft, characterized in that the cutting means ( 4 ) comprises at least one cutting blade ( 5 ) of which the plane is substantially tangential to a cylindrical surface having the same geometric axis as the rotary shaft, and being able to ensure, as it penetrates the layer, fragmentation of the latter, while the turning means granulates the cut material and moves it forward.