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Mining method for thick and large ore bodies

A technology of thick ore bodies and mining methods, which is applied in ground mining, mining equipment, mining equipment, etc., can solve the problems of increasing forklift round-trip ore loading time, lagging mining volume, and low ore extraction efficiency, achieving coordinated and flexible production Stability, output increase, and the effect of increasing reserve mining blocks

Active Publication Date: 2020-11-13
抚顺罕王傲牛矿业股份有限公司
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AI Technical Summary

Problems solved by technology

[0004] 1. Low mining efficiency
[0005] For example: Maogong Iron Mine uses a forklift to load the ore. If the rock drilling route is too long, it will increase the time for the forklift to and from the ore loading, which will greatly reduce the efficiency of the forklift, thus affecting the increase in the output of the entire mine.
[0006] 2. Poor ventilation effect
[0008] 3. Lag in the formation of reserve mining volume
[0009] In general mining, a single rock drilling route is more than 100m, and the drilling time of the medium and deep holes in the entire stope is greatly extended. Nervous etc.

Method used

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  • Mining method for thick and large ore bodies
  • Mining method for thick and large ore bodies
  • Mining method for thick and large ore bodies

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Embodiment Construction

[0034] The medium-thick ore body of the present invention means that the average thickness of the ore body is 100m-160m.

[0035] Such as figure 1 As shown, the present invention adopts a divisional mining scheme for the problem of thick and large ore bodies. Arrange a cutting roadway at the midpoint of the vertical approach, add a cutting roadway parallel to the original cutting roadway, the distance between the cutting roadways is 9m, and the cutting shaft is arranged in the middle of the two cutting roadways.

[0036] At the same time, a transportation roadway is arranged on the upper wall and the lower wall of the ore body, the lower wall transportation roadway is arranged outside the vein, and the upper wall transportation roadway is arranged inside the vein, forming a circular transportation form. The layout of the transport roadway is as follows: figure 2 shown.

[0037] The two cutting roadways completely divide the ore body into two independent partitions, which d...

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Abstract

The invention relates to the technical field of mining methods, in particular to a mining method for thick and large ore bodies. A singe thick and large ore body is divided into two separate zones artificially, original ore blocks double, the increase of production is facilitated, the reserve mining blocks are increased, and thus the production coordination is more flexible and stable. The miningmethod comprises the following steps that a first cutting roadway and a second cutting roadway are arranged on a vertical route of the thick and large ore body, and the thick and large ore body is divided into two zones.

Description

technical field [0001] The invention relates to the technical field of mining methods, in particular to a mining method for thick and large ore bodies. Background technique [0002] At present, it is generally stipulated that 15m-40m is a thick ore body, and more than 40m is an extremely thick ore body. In the mining operation, the section height is 20m, the middle section height is 60m, and the ore body with a thickness greater than 30m adopts the sub-section caving method arranged vertically without pillars, and the ore body with a thickness less than 30m adopts the sub-section caving method arranged along the strike . [0003] And there is following shortcoming in the mining technique of existing thick ore body. [0004] 1. Low mining efficiency. [0005] For example: Maogong Iron Mine uses a forklift to load ore. If the rock drilling route is too long, it will increase the time for the forklift to go back and forth to load the ore, greatly reducing the efficiency of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C41/22E21D9/14E21F13/02E21F17/18
CPCE21C41/22E21D9/14E21F13/02E21F17/18
Inventor 佟笙
Owner 抚顺罕王傲牛矿业股份有限公司
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