Objective
The aim of the present study was to develop means for optimizing the drainage network in order to improve safety and unitary output of workings, and to recover gas with a high caloric value.
Firedamp drainage and nitrogen inertization are two techniques for improving the safety and productivity of mine workings.
The principle of the control of these networks is currently empirical and their operation is manual.
The Houilleres du Bassin de Lorraine and the INERIS have developed an automated drainage network control system, based on procedures currently in use.
The preliminary phase of this work, aimed to the choice of measurement sensors, transmission and data processing material, as well as to the development of drainage control software, has terminated.
The full-size underground validation of an industrial installation is in progress.
In the framework of competition in the international energy market, Charbonnages de France considerably reduced production costs in the 1980's. This reduction necessitated large productivity increases, brought about by a policy of deposit selection and by favouring the method of caved longwall in flat seam with large thickness.
The increase in unitary output of workings resulted in an increase in firedamp release during the periods of longwall mining, which could limit production in spite of the steps taken for drainage and ventilation.
The usual parameters of ventilation: air flows and levels of methane and carbon monoxide, are currently monitored satisfactorily using remote transmission of data from different sensors set up in deep galleries. The drainage network, on the other hand, is not equipped with equivalent means.
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Programme(s)
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Topic(s)
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Call for proposal
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Funding Scheme
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Coordinator
57802 Freyming Merlebach
France
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.