Steam drying of rotary filter cakes without crack formation

US6409929B2 · kind B2 · utility

Assignee

• BOKELA Ingenieurgesellschaft für Mechanische Verfahrenstechnik mbH · DE

Inventors

• Reinhard Bott · Waldbronn, DE
• Robert Kern · Weingarten, DE
• Thomas Langeloh · Karlsruhe, DE

Key dates

• Filing date: Mar 11, 1997
• Grant date: Jun 25, 2002
• Expiry date: Mar 11, 2017

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D33/663
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Apparatus and a method are presented for the mechanical removal of moisture from a filter cake. Differential pressure causes the flow of a treatment fluid through the filter cake. The treatment fluid displaces liquid originally present in the filter cake to prevent cracking of the filter cake.