Abstract: A method for the automatic operation of a centrifugal drier comprising a rotary cylindrical screening basket and which is operated cyclically in successive cycles whose rhythm is a function of the flow of the product to be dried and each of which includes the stages of charging the basket with the product containing a particulate solid material, accelerating the rotary basket for centrifugally separating liquid from the solid mataerial to obtain the solid material in predried form, washing the predried solid material with a washing liquid, maintaining the basket at a constant rotary speed until the solid material has been completely dried, decelerating the rotary basket and discharging the dried solid material from the basket at a low rotary speed, which comprises, at the end of each cycle, the steps of fixing the duration of the stage of completely drying the solid material as a function of the time available for the following cycle to reduce the time interval between two successive cycles to a minimum, and

Abstract: A method for the automatic operation of a centrifugal drier comprising a rotary screening basket having a cylindrical wall and which is operated cyclically in successive cycles, each cycle comprising the steps of rotating the basket to generate a centrifugal force, charging a product to be dried into the rotating basket through an open valve, the centrifugal force causing the product to form a layer of increasing thickness along the cylindrical wall, closing the valve to discontinue charging the product when the layer thickness has attained a first control value lower than that of the layer thickness corresponding to an imposed value of the charge in the basket, then measuring the maximum thickness of the layer, comparing said measured maximum layer thickness with a second control value corresponding to said imposed value of the charge in the basket, and generating a new value for the first control value as a function of the difference between the measured maximum layer thickness and the second control value.

Abstract: A centrifugal drier comprises a conical bowl mounted in a housing for rotation about a vertical shaft. A circular wall concentrically surrounds the bowl and separates the housing chamber into a first compartment receiving the liquid from the rotating bowl and a second compartment receiving the separated solids therefrom. A skirt surrounds an upper part of the bowl and is affixed thereto. An annular baffle is affixed to the circular wall and extends between the wall and a lower skirt part. The circular wall, the skirt and the baffle define an annular space in communication with the first chamber. Rotation of the bowl and skirt affixed thereto causes the liquid to be forced centrifugally from the bowl into the first chamber and liquid droplets to be suspended in an air current in the annular space. A fibrous mat is disposed in this space and surrounds the skirt to trap the suspended liquid droplets and permit the liquid to run by gravity into the first chamber.