Patent ID: 6913379
Filing Date: 2005-07-05
Classification: B01F,B29B

Abstract:
1. A closed kneader comprising: a chamber for storing kneaded material; a pressurizing lid for closing a top of said chamber; and a pair of rotors installed in said chamber so as to oppose each other, each of said rotors comprising: wherein said rotor blade of each of said pair of rotors is tangentially mounted so as not to overlap one another; and wherein a ratio of a rotor shaft radius to a radius of an inner face of said chamber is at least 0.65, a clearance between an outer circumferential face of said rotor shaft and an inner wall face of said chamber is no more than 35% of the radius of the inner face of said chamber, and a ratio of a land width of each said rotor blade to the rotor shaft radius is no more than 0.25.