Patent · US Expired

Method and apparatus for rinsing filter cake

US4481118A · kind A · utility

11Cited by

7References

16Claims

0Family size

Assignee

Maschinenfabrik Andritz Actiengesellschaft · AT

Inventors

Otto L. Heissenberger · Graz, AT
Franz Petschauer · Lannach, AT
Johann Sbaschnigg · Graz, AT

Key dates

Filing date	Nov 3, 1982
Grant date	Nov 6, 1984
Priority date	—
Expiry date	Nov 3, 2002

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB30B9/24
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Disclosed are methods and apparatus for rinsing soluble materials from the filter cake formed in a double belt press. The belts with the filter cake therebetween are suspended between two spaced apart rollers to relieve pressure on the filter cake and the filter cake is simultaneously exposed to a rinse medium. Pressure is thereafter re-applied to the filter cake to extract the rinse medium therefrom.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.