Longwall mineral mining installation

US4389072A · kind A · utility

Assignee

• Gewerkschaft Eisenhutte Westfalia GmbH · DE

Inventors

• Horst Linke · Grafenau, DE
• Helmut Erwien · Grafenau, DE
• Herbert Beyer · Werne, DE
• Bodo Kerklies · Grafenau, DE
• Bernhard Wleklinski · Werne, DE
• Rudolf Mainusch · Bergkamen, DE
• Dieter Grundken · Grafenau, DE
• Bernd Kumor · Grafenau, DE
• Ulrich Mohn · Grafenau, DE

Key dates

• Filing date: Apr 24, 1981
• Grant date: Jun 21, 1983
• Expiry date: Apr 24, 2001

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21F13/086
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

A mineral mining installation comprises a longwall conveyor, a plough movable to and fro along a guide fixed to the face side of the longwall conveyor, and a drive station at one end of the longwall conveyor. The drive station includes a drive frame supporting drive means for driving the longwall conveyor. A support beam is provided at the goaf side of the drive station. The support beam extends substantially parallel to the drive frame. A floor plate extends beneath the drive frame. The goaf-side end portion of the floor plate is supported on the support beam by means of a lifting device, whereby the goaf-side end portion of the floor plate can be moved up and down relative to the support beam by the lifting device.