Abstract: In a centrifugal apparatus for separating wetting material carried on particulate matter or chips, such apparatus includes a truncated conical shaped bowl into which the particulate matter or chips are deposited for centrifugal separation. A number of equidistantly spaced and radially aligned vanes are secured to the inner surface of the bowl adjacent the truncated end to collect incoming particulate matter or chips, and to establish a buffer layer, reducing the abrasion on the bowl caused by the insertion of further particulate matter or chips.

Abstract: In a horizontal centrifugal apparatus for separating wetting material carried on chips, such apparatus includes a conically shaped bowl carrying vanes distributed about its inner face with the midpoint of the length of said vane lying on a radius from the horizontal axis of bowl rotation such that the vane leading ends and trailing ends are about fifteen degrees of the radius at the midpoint of such vanes to impose an impediment to the rate of erosion on the vanes.

Abstract: A vertical or horizontal centrifugal separator comprises a drive mechanism including a drive shaft. A flight assembly is attached to the drive shaft and is rotatably driven by it as is a screen assembly which includes a rotor that also is attached to the drive mechanism. The flight assembly generally has a frusto-conical central body with a plurality of spaced apart individual blades or flights aligned longitudinally on the exterior of the central body. The rotor is driven at a separate speed that the flight assembly. A perforated screen assembly is carried by the rotor and is positioned outwardly of the flight assembly. An inlet assembly is positioned above these other elements where material to be separated is fed into the separator through the inlet assembly. An improvement comprises a novel tip formed on each of the individual flights.

Abstract: A cone frustum is provided for a centrifugal separator to shield the area of the separator's screen at the top of the flight assembly from the initial impact of the material which is introduced into the separator. The cone frustum is spaced above the flight assembly and below the inlet to shield the portion of the screen that is at the top of the flight assembly. The cone frustum is spaced radially inwardly from the screen and outwardly from the outlet. The cone frustum shields the part of the screen which wears most quickly to extend the life of the separator's screen assembly. The cone frustum is partially perforated to allow for initial dewatering of the material introduced into the separator. The slope of the cone frustum is equal to or less than the slope of the screen of the separator.