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A mining method for medium-thick ore body

A mining method and technology of thick ore body, applied in surface mining, underground mining, special mining, etc., can solve the problems of long horizontal conveying distance, affecting mine production, large filling line, etc. The effect of ore dilution rate and improving utilization rate

Active Publication Date: 2017-01-04
BAIYIN NONFERROUS GROUP
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Problems solved by technology

However, for medium-thick ore bodies far away from the main ore body, due to the small vertical height, long horizontal conveying distance, large filling line, small pipeline pressure difference when slurry passes, large resistance loss, and low mortar flow rate, if filling mining is adopted In this method, the filling time line is high, far exceeding the normal value of the filling time line, so it is easy to block the pipe, and there is no mine drainage nearby, which seriously affects the mine production; if the caving mining method is used, the dilution is large, and the output low grade

Method used

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  • A mining method for medium-thick ore body
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Embodiment 1

[0027] Such as Figure 1-2 As shown, Xiaotieshan Mine of Baiyin Nonferrous Metals Group Co., Ltd. arranges exploration lines 1950 lines, 2000 lines, and 2050 lines at a certain distance in the direction perpendicular to the length of the 2# ore body at the level of elevation line 1484 (seventh middle section) Excavate the prospecting roadway 1 along the exploration line until the entire 1# ore body and 2# ore body are broken down; from the level of 1484 above sea level (seventh middle section) and near the prospecting roadway 1 of the 2050 line, a 2×2m From the patio to the altitude line 1544 level (sixth middle section), it is used as a channel for ventilation, pedestrians and materials to go up and down, which is called the West Mixed Well 2; from the altitude line 1484 level, near the 1950 line prospecting roadway 1, a 2×2m well is excavated. From the patio to the elevation line 1544 level (sixth middle section), it is used as a channel for ventilation, pedestrians and mate...

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Abstract

The invention discloses a mining method for a medium-thick ore body, which comprises the following steps: A. prospecting; B. mining and cutting the ore body; C. mining the ore body. In the mining method of the medium-thick ore body of the present invention, the ore prospecting roadway is perpendicular to the length of the main body of the ore body on the predetermined elevation until the entire ore body is broken down. The mining and cutting work is carried out on the main body of the ore body, and the top mining is carried out on the main body of the ore body by using the shallow hole ore retention method. The prospecting method of the present invention excavates the prospecting roadway in the ore body, which has a high degree of control over the ore body, can effectively increase the ore recovery rate during mining, reduce the ore loss rate and ore dilution rate, improve the utilization rate of mineral resources, and contribute to the sustainable development of mines. Development provides resource guarantee. The mining and cutting work performed on the ore body by the invention has good stability, safety and reliability, and can effectively improve the mining efficiency. Simultaneously, the present invention adopts the method of retaining ore in shallow holes to carry out top mining on the main body of the ore body, which has simple structure, convenient management, and small amount of mining work.

Description

technical field [0001] The invention belongs to the technical field of mining, and in particular relates to a mining method for a medium-thick ore body. Background technique [0002] Caving mining method and upward roadway cemented-fill mining method are the most commonly used mining methods. However, for medium-thick ore bodies far away from the main ore body, due to the small vertical height, long horizontal conveying distance, large filling line, small pipeline pressure difference when slurry passes, large resistance loss, and low mortar flow rate, if filling mining is adopted In this method, the filling time line is high, far exceeding the normal value of the filling time line, so it is easy to block the pipe, and there is no mine drainage nearby, which seriously affects the mine production; if the caving mining method is used, the dilution is large, and the output low grade. Contents of the invention [0003] The object of the present invention is to solve the techn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/16
Inventor 朱小明刘国锋陶再斌
Owner BAIYIN NONFERROUS GROUP
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