Community Research and Development Information Service - CORDIS


More than 50% of hard coal seams in Germany are between 1.0 and 1.6 metres thick. When the thickness is as low as 1.3 m, ploughing is preferable to cutting and is used almost exclusively in Germany, but adverse marginal operating conditions result in uneconomic extraction costs. At the same time the need exists to use such unattractive seams to defray the capital costs of the mines and a possible answer to the overall problem is to automate the working of these thin seams. The examination of such a project has three main elements, namely a) measures to increase the efficiency of ploughing equipment by an improved technique - particularly by means of the equipment known as the "Continuous Long Wall Miner" used by the Bochumer Eisenhuette Heintzmann GmbH which combines getting, loading and transporting the coal in one operation and which seems suitable for automation, b) automatic boundary layer recognition by ploughing plant and c) a system for displacement-controlled advancement. For the aim to be achieved the equipment must operate in an reliable and efficient manner but underground measurements have shown that the present system does not meet these various requirements and will need further development.

Additional information

Authors: DMT, DMT- Gesellschaft fur Forschung und Prufung mbH, Bochum (DE)
Bibliographic Reference: EUR 17959 DE (1999) 286pp.
Availability: Available from OOPEC Sales agents
ISBN: ISBN 92-828-5539-2
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