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A trackless mining method for gently inclined veins

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 high mining cost and large mining volume, and achieve the effects of reduced mining volume outside the vein, large production capacity and high efficiency

Active Publication Date: 2016-08-24
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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  • A trackless mining method for gently inclined veins
  • A trackless mining method for gently inclined veins
  • A trackless mining method for gently inclined veins

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 gently inclined veins. The steps of the method include vein division, ore block layout, rock drilling roadway layout, and segmental filling; the vein division is divided into middle sections along the vertical height of the veins, and the middle section is divided into sections. Divide the stope along the strike; excavate the sectioned ore chute in advance at the footwall of the ore vein; form a chute connecting lane outside the vein on one side of the chute; form a chute connecting slope connecting upwards and downwards to the bottom of each section at both ends of the chute connecting roadway The upper and lower chute connecting ramps and the chute connecting lanes realize the passage and retention of trackless mining equipment, personnel and materials; the ore is discharged through each section of the chute. The invention has the characteristics of less engineering quantity for mining outside veins, high production efficiency, and safe operation, and solves the technology of large amount of mining outside gently inclined and thin veins, difficult ore self-slipping, low degree of mechanization, high labor intensity and low efficiency. It has realized the trackless and mechanized efficient mining of gently inclined thin veins.

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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Patent Type & Authority Patents(China)
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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