Device for conditioning and cooling of foundry molding sand

The present invention relates to a device for preparing and cooling of foundry molding sand with a mixing tank and a rotating mixing tool to a drive shaft, wherein an air supply for supplying air is provided in the container interior. In order to provide an improved apparatus, with which a uniform fluidized layer is achieved as possible over the entire cross section of the mixing container, wherein beyond the portion of the entrained with the gas stream of solid particles is to be reduced, it is proposed according to the invention that the mixing tool at least two having vertically spaced mixing blades and at least one mixing vane has a mixer with a blade to the horizontal inclined surface.