Patent ID: 7325966
Filing Date: 2008-02-05
Classification: B01F

Abstract:
1. A device ( 1 ) for dispersion and/or homogenization comprising a dispersing and/or homogenizing tool ( 2 ), in which a pumpable material or a pumpable mixture is mixed with at least one additive, wherein the pumpable material is adapted to be fed from a container to the dispersing and/or homogenizing tool ( 2 ) and a feeding line ( 5 ) is provided for the at least one additive, which opens into a supply line ( 4 ) for the pumpable material at a location before the tool ( 2 ), the feeding line ( 5 ) and the supply line ( 4 ) are arranged concentric to each other at least in a region of an opening ( 6 ) to the tool ( 2 ), at least one impeller pump ( 7 ) located at a distance before the dispersing and/or homogenizing tool ( 2 ) and before the opening ( 6 ) of the feeding line ( 5 ) in a feed direction of the material, whose pumping pressure in a flow direction in the region of the opening ( 6 ) of the feeding line ( 5 ) is less than a suctioning pressure of the dispersing and/or homogenizing tool ( 2 ), and an arrangement for varying a size of a cross section of the supply line ( 4 ) between a fully closed and a fully open position is located in the supply line of the pumpable material from the impeller pump ( 7 ) to the opening ( 6 ) of the supply line.