Apparatus for the treatment of a filter cake with a liquid on a movable filter

US4305820A · kind A · utility

Assignee

• KraussMaffei GmbH · DE

Inventors

• Werner Stahl · Heimstetten, DE
• Bernhard Richter · Puchheim, DE
• Franz Koch · Augsburg, DE

Key dates

• Filing date: Jan 19, 1978
• Grant date: Dec 15, 1981
• Expiry date: Jan 19, 1998

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D33/21
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A disk-filter apparatus in which a filter disk is rotatable about a horizontal axis and lies substantially in a vertical plane to collect filter cakes on opposite sides of the disk. The filter cakes are each treated with a liquid from an array of ducts parallel to the filter cake and from which the liquid is distributed onto the filter cake. The ducts of each array are supplied at least in part through overflow boxes or weirs to control the pressure. The number of openings, spacing of the ducts and opening size are all selected to obtain the most homogeneous distribution of liquid onto the filter cakes that is possible.