Patent ID: 6095965
Filing Date: 2000-08-01
Classification: B04B,B07B

Abstract:
A separated-solid-component generating system comprising:a dry mixture including a first component and a second component; anda centrifugal separator configured to separate the first component from the second component, the separator comprising:an annular surface inclined upwardly outwards and having a vertical axis of symmetry, the annular surface comprising an upper edge, a lower edge, a first annular part, and a second annular part, the second annular part lying closer to the vertical axis of symmetry than the first annular part;a drive mechanism coupled to the annular surface for rotating the annular surface around the vertical axis of symmetry; anda feed mechanism located centrally with respect to the annular surface for feeding the dry mixture onto the annular surface,wherein the first component has a first effective friction coefficient against the first annular part, and the second component has a second effective friction coefficient against the first annular part, the second effective friction coefficient being smaller than the first effective friction coefficient, andwherein the first annular part is inclined at an angle to the vertical axis of symmetry of between about 1.degree. to about 5.degree. greater than the arctangent of the second effective friction coefficient, and the second annular part is inclined at an angle to the vertical axis of symmetry of between about 5.degree. to about 10.degree. greater than the arctangent of the second effective friction coefficient.