Method and device for extracting extraction products in underground mining
A technology of working and mining face, applied in mining equipment, earthwork drilling, underground transportation, etc., can solve problems such as wear and tear
Inactive Publication Date: 2009-12-02
CATERPILLER GLOBAL MINING EURO GMBH +1
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- Description
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Problems solved by technology
Another disadvantage of the known method is the severe wear, which the discharge conveyor is subject to even when recovering small-grained material, since the material falls in essentially unbraked free fall through the discharge hopper. In the ore-drawing level roadway and most of them fall directly on the conveying mechanism of the discharge conveyor
Method used
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[0049] figure 1 Indicates an underground mining operation that extracts copper ore buried within a large thickness of about 50 meters. The first mining step is carried out in a known manner by full-scale mining with the protruding joint frame 11 and the associated extraction and loading device in the longwall face 10, the latter not being shown here and need not be described in detail. The recovery device may be of the type described, for example, in DE 100 46 497 A1, see this document here.
[0050] Through the longwall face, copper ore is mined only in the lower part of its entire thickness; the much larger portion of the copper ore present that passes through the longwall face, making up its hanging wall, passes through the nodal support 11 After the caving, and for its recovery, it is discharged downward through the discharge funnel 13 arranged in the lower wall 12 of the longwall working face 10, so as to pass through the ore drawing level roadway 14 propelled at a heigh...
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The invention relates to a method and a device for extracting mined products in underground mining operations according to the caving mining method, wherein the mined products (20) caving in the upper working face (10) are discharged through at least one discharge funnel (13) or the like It enters an ore-drawing drift (14) that advances below the working face, and is transported out in the ore-drawing drift by means of a discharge conveyor (15). According to the present invention, the discharge funnel (13) is arranged on the side of the discharge conveyor (15), and at its lower end, it transitions into an inclined plane (17) inclined towards the direction of the discharge conveyor, through which the discharge funnel from the working The recovered products discharged from the surface are transported by sliding in the direction of the discharge conveyor through the inclined slope. Here, the inclined ramp is preferably formed by a charging table (22) which is arranged on the side of the discharge chamber (16) branching off from the ore-drawing shaft in such a way that it is placed on a higher level One end (19) is below the discharge funnel, while its other end (23) arranged at a lower level constitutes a discharge section (21) towards the discharge conveyor.
Description
technical field [0001] The invention relates to a method for extracting mined products in underground mining operations according to the caving mining method, whereby the mined products caving in the upper working face are discharged into a In the ore-drawing tunnel advanced below the working face, and transported out by means of a discharge conveyor in the ore-drawing tunnel. The present invention also relates to a device for mining mined products in underground mining according to the caving mining method, wherein after the mined products have collapsed in the mining face, they can pass through at least one rock located in the floor of the mining face toward a The discharge hopper or similar device opening in the direction of the ore-drawing headway propelled under the working face is discharged, and can be transported out by means of a discharge conveyor arranged in the ore-drawing headway. Finally, the invention also relates to a charging table which can be used in a pref...
Claims
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IPC IPC(8): E21F13/06E21D9/12E21F13/04E21C35/20E21F13/00
CPCE21D9/12E21C35/20E21F13/04E21F13/061E21F13/002
Inventor R·布吕格曼D·哈恩F·菲舍尔J·哈梅尔J·维尔茨N·卡特赫费尔F·赫尔曼H·廷普纳H·马丁J·德尔加多V·R·E·蒙特内格罗P·A·L·帕尔加J·H·C·巴尔德斯F·A·G·比尔曼
Owner CATERPILLER GLOBAL MINING EURO GMBH