Abstract: A method of feeding material for centrifugation to a continuously operating centrifuge having a conical drum, wherein the stream of material for centrifugation to be fed to the drum is divided up into n sub-flows and the n sub-flows are fed to n axially consecutive annular sections of the drum surface, the sizes of the sub-flows fed to the annular sections per unit of length in the axial direction being in the same ratio as the squares of the average diameters of said annular sections and a centrifuge with a distributor system inside the drum for dividing the material into n sub-flows.

Abstract: A method and a device for obtaining sugar crystals from a sugar solution by concentrating the thick juice emanating from the multi-stage evaporator in a continuously operating pre-concentrator to a concentration at which seed granulate could be added to the boiling pan, by raising the pressure of the concentrated thick juice, by supplying the juice to a buffer vessel in which the juice is subjected to a higher pressure than the pressure at which it is concentrated, the temperature being maintained and the contents of the vessel being thoroughly stirred and by filling the boiling pan from the buffer vessel while simultaneously seed granulate is added.