Screening device

US4708795A · kind A · utility

Assignee

• HEIN, LEHMANN GMBH · DE

Inventors

• Gerhard Schmidt · Wilthen, DE
• Christian Neukam · Kalchreuth, DE
• Heinrich Schmidt · Düsseldorf, DE

Key dates

• Filing date: May 2, 1986
• Grant date: Nov 24, 1987
• Expiry date: May 2, 2006

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D29/908
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

An apparatus for the separation of a liquid from a solid of a solid-liquid mixture has a tangential inlet screen section at the upper end of a vertical separating screen which decreases in diameter downwardly. The mixture is introduced tangentially onto the spiral screen section and then closed downwardly onto the separating screen. Solids are recovered at the bottom of the screen and the liquid passes through the screen and is collected outwardly thereof.