HIGHWALL MINING EQUIPMENT RETRIEVAL AND EXTRACTION APPARATUS
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United States of America Patent
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app pub date -
Jan 6, 2017
filing date -
Jan 7, 2016
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Abstract
An extraction and retrieval apparatus for highwall mining equipment which includes a mining head engaged with and proceeded by a series of push beams The apparatus includes a retriever platform having wing braces for bracing the retriever platform against a mine highwall and a hydraulic assembly is mounted on the retriever platform and includes at least a spaced pair of stop blocks securable to the retriever platform at multiple different positions therealong. The hydraulic assembly further includes a pull beam slidable along the retriever platform and having a connection for connecting the pull beam to an outer most exposed push beam of the mining equipment. A spaced pair of hydraulic cylinders are disposed between the pair of stop blocks and the pull beam for pulling a connected mining push beam together with attached mining equipment from the mine shaft.
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