Shield control device for carrying out the longwall function of a longwall unit in the longwall face working in a mine

US8567869B2 · kind B2 · utility

Inventors

• Willi Kussel · Werne, DE
• Peter Rahms · Billerbeck, DE

Key dates

• Filing date: May 9, 2008
• Grant date: Oct 29, 2013
• Expiry date: Aug 27, 2030

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21D23/12
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

The shield control device of a longwall shield for carrying out the longwall functions of the longwall shield in the longwall face working in a mine is associated with a distributing device upstream of a group of functional elements. Each of the functional elements of the longwall shield is associated with an exclusive address code word, on the call of which the internal connection between the shield control device and the functional elements depends. The distributing device is arranged in close proximity to the functional elements. The functional elements are valves or sensors.