Patent ID: 9138698
Filing Date: 2015-09-22
Classification: B01F,Y10T

Abstract:
1. An impeller for mixing slurry, created in a hydrometallurgical process, in a reactor, said impeller being formed of at least five blades, each comprising a blade front edge, trailing edge, root and tip, so that the roots of the blades are permanently attached by a joint to a hub or an axis, wherein the front edge of the impeller blade is straight, and the trailing edge is chamfered, so that the blade is narrowed towards the tip, and that the blade is provided with two longitudinal folds arranged in parallel with the blade front edge and said folds are located at the same distance from each other, and extend from the blade root to the blade tip and divide the blade in three equally wide blade profiles, the surface area of which is reduced in the rotary direction of the blade, wherein the trailing edge terminates at the blade tip at a middle blade profile of the three blade profiles.