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Trackless mining method for gently inclined ore vein

A mining method and gently inclined technology, which is applied in the field of trackless mining of gently inclined veins, can solve the problems of large mining volume and high mining cost, and achieve the effects of large production capacity, reduced mining volume outside the vein, and high efficiency

Active Publication Date: 2014-10-15
贵州开磷设计研究院有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is necessary to improve the existing upward horizontal filling mining method to solve the problem of large mining volume and high mining cost

Method used

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  • Trackless mining method for gently inclined ore vein
  • Trackless mining method for gently inclined ore vein
  • Trackless mining method for gently inclined ore vein

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A method for trackless mining of gently inclined veins, mainly comprising the following method steps:

[0046] (1) Arrange the ore block along the vein direction, divide the ore vein into stages on the vertical height, the ore block is 60m long, and the stage height is 25m. One stage has three segments, the segment height is 7.5m, and the top pillar 8 is 2.5m thick; Fill the ventilation shaft 7 in the middle of the side of the footwall of the ore block parallel to the vein 9 and incline to open the vein. The length of the ventilation shaft 7 filled in the vein is oblique in stages, and the specification is 1.5×2m 2 ; From the stage transportation lane 1 corresponding to the middle position on the direction of the ore block, deviate from the direction of the ore vein 9, excavate the horizontal concentrated ore exit roadway 17 perpendicular to the direction of the ore vein 9, with a length of 13.49m; from the stage transportation lane 1 deviate from the direction of the or...

Embodiment 2

[0054] A method for trackless mining of gently inclined veins, mainly comprising the following method steps:

[0055] (1) Arrange the ore block along the vein direction, divide the ore vein into stages on the vertical height, the ore block is 40m long, and the stage height is 25m. One stage has three segments, the segment height is 7.5m, and the top pillar 8 is 2.5m thick; Fill the ventilation shaft 7 in the middle of the side of the footwall of the ore block parallel to the vein 9 and incline to open the vein. The length of the ventilation shaft 7 filled in the vein is oblique in stages, and the specification is 1.5×2m 2 ; From the stage transportation lane 1 corresponding to the middle position on the direction of the ore block, deviate from the direction of the ore vein 9, excavate the horizontal concentrated ore exit roadway 17 perpendicular to the direction of the ore vein 9, with a length of 13.49m; from the stage transportation lane 1 deviate from the direction of the or...

Embodiment 3

[0060] A method for trackless mining of gently inclined veins, mainly comprising the following method steps:

[0061] (1) Arrange the ore blocks along the vein direction, divide the ore veins into stages on the vertical height, the ore blocks are 100m long, and the stage height is 50m. One stage has three segments, the segment height is 7.5m, and the top pillar is 8m thick; The central position of the side of the footwall of the ore block is parallel to the ore vein 9 and is inclined to fill the ventilation shaft 7 in the open vein. The length of the ventilation shaft 7 filled in the vein is oblique in stages, and the specification is 1.5×2m 2 ; From the stage transportation lane 1 corresponding to the middle position on the direction of the ore block, deviate from the direction of the ore vein 9, excavate the horizontal concentrated ore exit roadway 17 perpendicular to the direction of the ore vein 9, with a length of 13.49m; from the stage transportation lane 1 deviate from t...

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Abstract

The invention discloses a trackless mining method for a gently inclined ore vein. The method comprises the steps of: vein partition and ore block arrangement, rock drilling tunnel arrangement, and sublevel filling. During vein partition, the ore vein is partitioned into stages along the ore vein vertical height, a stage falls into substages, and a stope is partitioned along the strike; at an ore vein footwall, a substage orepass is tunnelled in advance; an exo-vein orepass connection roadway is formed on one side of the orepass; orepass connection ramps upward and downward connecting each substage bottom are formed at both ends of the orepass connection roadway respectively; the upward and downward orepass connection ramps and the orepass connection roadway realize passing and stay of trackless mining equipment, staff and materials; and ores are removed out of the mine through each substage orepass. With the characteristics of small exo-vein mining preparation project amount, high production efficiency, and safe operation, etc., the method provided by the invention solves the technical problems of large exo-vein mining preparation amount, difficult self-slip of ores, low mechanization degree, large labor intensity and low efficiency of the gently inclined thin ore vein, and realizes trackless mechanized efficient mining of the gently inclined thin ore vein.

Description

technical field [0001] The invention belongs to the technical field of mining, and relates to an upward layered filling mining method, in particular to a trackless mining method for gently inclined veins. Background technique [0002] Gently inclined veins are one of the main forms of non-ferrous metal ore deposits in my country, especially in gold, silver, molybdenum, tin, tungsten, antimony and other deposits occupy a large proportion. There are problems such as difficulty in controlling the boundaries of ore veins in mining, high loss and dilution rates, and difficulty in ore handling after blasting, which has caused mines mining such ore veins to generally fall into unprecedented difficulties. It is difficult to adapt to complex and changeable vein ore deposit mining technical conditions by using the open field method or the shallow hole ore retention method. Controlling vein boundaries is difficult, resulting in high ore loss and dilution rates. [0003] In order to r...

Claims

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Application Information

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IPC IPC(8): E21C41/22E21F15/00
Inventor 赵国彦姚金蕊王梅唐洋何忠国李文成
Owner 贵州开磷设计研究院有限责任公司
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