Arrangement for extracting extraction products in underground extraction operations in caving

Abstract

In the case of the arrangement according to the invention for extracting extraction products in caving, the extraction product being removed downwards, by way of a removal hopper (10), into a removal section (11) and being transferred, from the latter, to a removal conveyor arranged in a conveying section, wherein the removal section extends transversely between the conveying section (13) and an auxiliary section (12) moved up parallel to the latter, a loading ramp is arranged in the removal section (11) and forms a ramp surface which is oriented essentially transversely to the conveying direction of the removal conveyor and is inclined in the direction of this removal conveyor. In order for it to be possible to regulate the quantity of extraction material removed by way of the removal hopper and to clear out the removal section quickly and particularly straightforwardly when it has become clogged with extraction material, the invention makes provision for the removal section to be provided with a rail guide which is fixed on the floor or footwall, which extends in the region between the auxiliary section and the conveying section, up to which the loading ramp leads and along which this can be displaced, by means of a displacement drive, in the direction of the conveying section and in the opposite direction.

Description

technical field [0001] The present invention relates to a device for extracting mined products in the caving mining method of underground mining operations, wherein the mined products, after their caving, can pass in a mining face through at least one layer arranged in the floor of the mining face, discharge to a discharge hopper or the like open towards a discharge tunnel erected below the mining face, wherein the discharge tunnel runs parallel to a conveyor tunnel with a discharge conveyor for excavated material Extending transversely between the auxiliary lanes extending from the conveying lanes and accommodating a loading table having a slanting towards the unloading conveyor which is oriented substantially transversely to the conveying direction of the unloading conveyor mesa. Background technique [0002] Such a device is known from WO 2005 / 001245 A2. This known device has proven to be well suited for the extraction of mined products mined in caving mining, but probl...

AI Technical Summary

Problems solved by technology

This known device has proven to be well suited for the extraction of mined products mined in caving mining, but problems sometimes arise if the particle size of the mined and mined material which reaches the charging table via the discharge funnel varies, Because this can suddenly result in fine-grained recovered material, in material that slips through the discharge funnel too quickly until the discharge tunnel is blocked at the height of the roof of the discharge tunnel, and between the loading table and the discharge Unexpectedly large rock blocks get caught between the lower edges of the funnel and can thus impede or completely interrupt the subsequent flow of material

In this known device it is necessary in such a case to keep the discharge tunnel or the discharge hopper unblocked "by hand", that is to say by the manual work of the miners, which not only means heavy work, but is also time-consuming and dangerous

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