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A trackless mining method for gently inclined ore veins using the out-of-vein chute ore extraction system as a ramp

A mining method and technology of ramps, which are applied in ground mining, mining equipment, earth-moving drilling, etc., can solve the problems of human and material resource consumption, long construction period, large mining accuracy, etc., and achieve reduced labor intensity, low labor intensity, The effect of large production capacity

Active Publication Date: 2016-08-17
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

Obviously, when this kind of typical upward layered filling mining method is applied to the mining application of gently inclined ore bodies, there are problems such as large mining volume, long construction period, high consumption of manpower and material resources, and high cost.

Method used

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  • A trackless mining method for gently inclined ore veins using the out-of-vein chute ore extraction system as a ramp
  • A trackless mining method for gently inclined ore veins using the out-of-vein chute ore extraction system as a ramp
  • A trackless mining method for gently inclined ore veins using the out-of-vein chute ore extraction system as a ramp

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0043] After the filling of the first section 101 is completed, personnel enter the rock drilling roadway B21 of the second section 102, and make a layer of 0.5m thick cemented surface 10 on the filling body 11; drive the trackless equipment into the stope from the section connecting cross-way A5 , carry out the mining operation; the recovery mode of the second subsection 102 and the third subsection 103 is the same as that of the first subsection 101; the ores of the upper two subsections pass through the respective downward subsection contact ramp A6, and the downward subsection contact ramp From B15 to section connecting horizontal alley A5, section connecting horizontal alley B14 and then transported to mine shaft A4 and mine shaft B18 for ore extraction, all ores are finally discharged through stage transportation lane 1; the filling material is lowered by filling the ventilation shaft 7 in the vein , mining and filling in sections from bottom to top. The specific impleme...

Embodiment

[0044] Embodiment: along the ore body 9, it is vertically divided into several stage ore blocks, and the length of each stage ore block is 40-60m, 25m high; then a single stage ore block is vertically divided into such as figure 1 In the first segment 101, the second segment 102 and the third segment 103 shown in three segments, the top of the third segment 103 is reserved with a top column 8, and the thickness of the top column 8 is 2.5m; as Figure 2-4 As shown, in the middle position of the side of the footwall of the ore block in the stage, parallel to the ore body 9, an in-vein filling ventilation shaft 7 is opened. The cross-section of the in-vein filling ventilation shaft 7 is a rectangle of 1.5m×2m. From the left to the right 2 / 3, a stage transportation lane 1 parallel to the stage ore block is dug out; from the middle position of the stage transportation lane 1 corresponding to the stage ore block direction, a horizontally arranged centralized ore discharge is excavate...

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Abstract

The invention discloses a trackless mining method for a gently inclined vein by adopting a rockhole ore removal system as a ramp. The trackless mining method comprises the following steps: ore body dividing, ventilation shaft arranging, ore removing and laneway excavating, laneway constructing, primary ore removing, primary stoping and filling, secondary ore removing, secondary stoping and filling, tertiary ore removing and tertiary stoping and filling. The trackless mining method can mine gently inclined medium stable veins well, and can effectively solve the problems, in a traditional mining method, that the prepared ore reserve is large, the construction period is long, the consumption of manpower and material resources is high, and the cost is high. The trackless mining method has the advantages of small prepared ore reserve, high mechanization degree, high safety, small resource loss and waste, high working efficiency and the like.

Description

technical field [0001] The invention relates to a trackless upward layered filling mining method, in particular to a trackless mining method for gently inclined ore veins using an out-of-vein chute ore discharge system as a ramp. 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. This kind of gently inclined vein has problems such as difficulty in controlling the ore body boundary, high loss rate and dilution rate, and difficulty in ore handling after blasting. At present, the open field method or the ore retention method are mainly used for the mining of this kind of gently inclined vein. However, these two mining methods are difficult to adapt to complex and changeable vein ore deposit mining technical conditions, and are prone to problems such as difficulty in controlling ore body boundari...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/22E21F15/00E21F13/00
CPCE21C41/22E21F13/00E21F15/00
Inventor 姚金蕊赵国彦何忠国彭俊张志红叶晓洪王梅李夕兵李文成
Owner 贵州开磷设计研究院有限责任公司
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