Abstract: Disclosed is a root end element for attachment to a root end of a wind turbine blade, a root end manipulator configured to manipulate a wind turbine blade, and a blade manipulation system comprising the root end element and the root end manipulator. The root end element being configured to support the root end of the wind turbine blade.

Abstract: The present invention provides a pellet mill (20) for preparing pellets from a pelletizable material supplied to the pellet mill (20), comprising a frame (22), a main axle (28) rotatably mounted in said frame (22) and having a first end (30) and an opposite second end (32), an annular die (42) being supported by said second end (32) and having an inner surface (44) for receiving a portion of said pelletizable material (106) supplied to said pellet mill (20), an outer surface (46), and a plurality of radial channels (48) extending from said inner surface (44) to said outer surface (46) for preparing pellets from said portion of said pelletizable material (106), a roller holder (54) supported by said frame (22), a number of roller axles (64), each of said number of roller axles being moveably mounted in said roller holder (54), said roller axles may move in said roller holder (54) in the event of an overload to prevent damage to the pellet mill, a number of rollers (80), each of said number of rollers being rot

Abstract: It is the object of the present invention to provide a method of controlling a pellet mill, said pellet mill comprising—a number of rollers (2,3,4),—a cylindrical die (1) provided with perforations, said rollers (2,3,4) being mounted inside said cylindrical die (1) for pressing material to be pelletized through said perforations,—an adjustment mechanism (5,6,7) for adjusting the distance between the rollers (2,3,4) and the die, (1)—a drive mechanism (M4) for rotationally driving said die (1) and said rollers (2,3,4), said method of controlling comprising the steps of—providing a measurement (8,9,10,11,12,13,14) of a parameter (x,y,z, W1,W2,W3,W4), said parameter indicating if an overload of the pellet mill is arising, and—in case of such indication being detected, reducing the load on the pellet mill by suitable counter-measures.

Abstract: The present invention provides a pellet mill (20) for preparing pellets from a pelletizable material supplied to the pellet mill (20), comprising a frame (22), a main axle (28) rotatably mounted in said frame (22) and having a first end (30) and an opposite second end (32), an annular die (42) being supported by said second end (32) and having an inner surface (44) for receiving a portion of said pelletizable material (106) supplied to said pellet mill (20), an outer surface (46), and a plurality of radial channels (48) extending from said inner surface (44) to said outer surface (46) for preparing pellets from said portion of said pelletizable material (106), a roller holder (54) supported by said frame (22), a number of roller axles (64), each of said number of roller axles being moveably mounted in said roller holder (54), said roller axles may move in said roller holder (54) in the event of an overload to prevent damage to the pellet mill, a number of rollers (80), each of said number of rollers being rot