Hydroclone with improved cleaning assembly

US9527091B2 · kind B2 · utility

Assignee

• DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

• Gerald Drouin Corcoran · Santa Clara, US
• Rashi Tiwari · Missouri City, US
• Chad V. Schuette · Midland, US
• Peter J. Schulz · Midland, US
• Mark O. Labonville · Sanford, US
• Jim M. Grider, Jr. · Colon, US

Key dates

• Filing date: Dec 3, 2014
• Grant date: Dec 27, 2016
• Expiry date: Dec 3, 2034

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B04C2009/004
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A hydroclone comprising: a tank (12) including a fluid inlet (14), a filtered fluid outlet (16) and an inner peripheral wall (22) enclosing at least one chamber (24); a filter assembly (26) located within the chamber (24) and comprising a circular filter screen (27) centered about an axis (X); and a cleaning assembly (48) comprising at least one cleaning member (52) biased against and adapted to rotate about the periphery (29) of the filter screen (27); and at least one of: a) the filter screen (27) is reversibly deformable a radial distance (D) of from 0.1 to 10 times the average pore size by the cleaning member (52) biased against the periphery (29) of the filter screen (27); and b) a compressive member (58) providing a continuous radially inward force that biases the cleaning member (52) against the periphery (29) of the filter screen (27).