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Method for recovering corner ore body

An ore body and edge technology, which is applied in the field of mining edge ore bodies, can solve the problems of ore loss rate, increased dilution rate, small ore volume, and increased cost per ton of ore recovered, so as to improve efficiency and extend service. Years, the effect of increasing the ore recovery rate

Active Publication Date: 2021-02-05
抚顺罕王傲牛矿业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] If the stope adopts conventional mining methods for mining, due to the complex occurrence of the ore body and the small amount of ore, it will not only cause the loss rate of ore in the stope, dilution If the rate increases, the project will be wasted, and the cost of recovering a single ton of ore will increase

Method used

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  • Method for recovering corner ore body
  • Method for recovering corner ore body
  • Method for recovering corner ore body

Examples

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Embodiment 1

[0031] as attached figure 1 Shown, a kind of method for back mining edge ore body that one embodiment of the present invention provides, described method comprises the following steps:

[0032] During the construction of the transport roadway outside the vein, the ore is connected to the ore body, and is pulled along the bottom of the ore block to form the first cutting roadway; at the end of the first cutting roadway, the first cutting roadway perpendicular to the first cutting roadway is excavated. Second cutting drift; excavate the cutting patio upwards in the second cutting drift;

[0033] grooving the first cutting lane to form a first free surface;

[0034] The second cutting aisle utilizes the first free surface formed by the first cutting aisle to pull grooves to form a second free surface; the first cutting aisle is perpendicular to the second cutting aisle;

[0035] The first blast hole is arranged on the first free surface, and the second blast hole is arranged on...

Embodiment 2

[0042] In this embodiment, the method for mining the corner ore body in Embodiment 1 is applied to stope 509-1. The underground ore body in the 509-1 stope has a complex state of occurrence, and many branching and compound phenomena. The original mining method is the open-field mining method. The conventional stope arrangement is to construct the ore out of the tunnel in the stage outside the vein to connect with the ore body, pull it away along the bottom of the ore block, and form a cutting roadway 6, as shown in the attached Figure 5 with 6 shown. On both sides of the ore block, pedestrian ventilation patios outside the vein are arranged along the footwall of the ore body. On the pedestrian ventilation patio 7, every 12m is layered, and the pedestrian connection road is excavated to lead vertically to the mine house, and then the layered rock drilling roadway is excavated along the ore body. Cutting shafts are arranged on the upper wall of the ore body in the middle sec...

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Abstract

The invention is applicable to the technical field of mining, and provides a method for recovering a corner ore body. The method includes the steps of performing groove broaching on a second cutting roadway to form a second free surface; performing groove broaching on a first cutting roadway by utilizing the second free surface formed by the second cutting roadway to form a first free surface; thefirst cutting roadway is perpendicular to the second cutting roadway; second blast holes are formed in the second free face, and first blast holes are formed in the first free face; the first blast holes and the second blast holes are internally coupled for charging, and blasting is carried out; and ore removal is conducted after blasting is finished. According to the method for recovering the corner ore body, the mining mode of traditional single-cutting roadway stoping is changed, and a cutting roadway is added on the basis of an existing single-cutting roadway, so that the method has the advantages of being safe, efficient and economical. Compared with the prior art, the method effectively recovers the corner ore body, increases the ore stoping rate, prolongs the service life of the mine is prolonged, and improves the benefits of mining enterprises.

Description

technical field [0001] The invention belongs to the technical field of mining, in particular to a method for mining corner ore bodies. Background technique [0002] Ore refers to mineral aggregates from which useful components can be extracted or which have certain usable properties, and can be divided into metallic minerals and non-metallic minerals. Mining of ore mainly includes three parts: mining, cutting and mining. The sampling standards include transport level roadway and cross roadway, chute, secondary crushing roadway (electric rake road, grid screen road or scraper roadway), bucket neck, pedestrian patio, return air roadway, connection road, observation patio, horizontal observation roadway Etc.; Cutting includes cut side patio, cut side level roadway and horizontal roadway, pull bottom level roadway and horizontal roadway, etc.; mining includes ore falling, ore extraction and ground pressure management, etc. The specific ore mining method is determined accordi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C41/22F42D3/04F42D1/00
CPCE21C41/22F42D3/04F42D1/00
Inventor 衣福强李东闯胡世利王建赵占成
Owner 抚顺罕王傲牛矿业股份有限公司