Automatic control for electro-pneumatic wet settling

US4264441A · kind A · utility

Assignee

• Klockner-Humboldt-Deutz AG · DE

Inventors

• Friedhelm Heubner · Hemer, DE
• Werner Hasse · Hamburg, DE
• Karl-Heinz Weiffen · Hemer, DE

Key dates

• Filing date: May 3, 1979
• Grant date: Apr 28, 1981
• Expiry date: May 3, 1999

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B03B5/24
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

An automatic control for an electropneumatic wet settling machine, for the separation of mineral mixtures, in particular coal, through the pulsation of the separating liquid, provides that the separating liquid is energized and controlled by means of compressed air in pulsing chambers, and that measuring devices for measuring the movement of the separating liquid are provided to signal, advantageously on an analog basis, the movement of the separating liquid in order to control the introduction and exhaust of compresssed air from the pulsing chambers.