Abstract: A device for mixing pulverulent material into liquids is described. A mixing body receives pulverulent material at an upper opening and liquids at a tangential opening. A motor-driven screw in a hopper containing the pulverulent material advances the pulverulent material to the upper opening. To avoid lumping of the pulverulent product, a motor-driven agitator is disposed within the hopper. The mixer body includes a driven shaft which drives several turbines. Grooved plates are provided between the turbines to cause abrupt changes in the direction of the mixture flow.