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Filled mining method

A technology of ore retention method and mining method, which is applied in the field of filling and retention mining method, can solve problems such as difficult to meet production capacity, and achieve the effects of improving mining efficiency and mining intensity, short filling length and fast speed

Inactive Publication Date: 2003-06-18
广东金鼎黄金有限公司
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Problems solved by technology

Inner Mongolia Zhuanshanzi Gold Mine mines extremely thin (0.2-1.0m) steeply inclined ore bodies using the traditional wall-cutting and filling method: the production capacity of the mine is 8-12t / d (t / d is tons / day), while the shallow eye retains ore 60-100t / d by the mining method, it was difficult to meet the expanded production capacity of the mine at that time, which was expanded from 50t / d to 200t / d. Therefore, a mining method with a larger production capacity and suitable for the mining technical conditions of the mine was urgently needed. Therefore, Combine the characteristics of the two methods of wall cutting and filling and shallow eye retention to produce the method of cutting wall and retaining ore

Method used

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Embodiment Construction

[0011] The ore body of line 42-48 in the middle section of -40 in the Gaocun mining area of ​​Gaoyao Hetai Gold Mine in Gaoyao, Guangdong Province is 120m long, with an average thickness of 6.7m and an average grade of 9.8g / t. The trend of the ore body is consistent with the structural fracture zone, which is unstable and will cause a large number of caving after being exposed. The above method is used for this section of the ore body, and a section (average thickness 8-12m) is delineated, and artificial inter-columns are built from the middle to support the footwall. The adjacent stope is also mined by the shallow eye retention method. The center of the stope is excavated to fill the ventilation shaft 7, and the lower side of the vein is leveled 8, the mining quasi-raft 9 is excavated, and the stope joint road 11, and the rock loader Go out of the mine roadway 10, then cut and construct the reinforced concrete bottom column 1 to its bottom, start to construct two reinforced co...

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Abstract

A mining method with filling and shrinkage features that the artificial pillar is used to replace ore pillar and the dry filling mining and the shellow-hole shrinkage minining are combined together. Its advantages are good maintenance to upperwall and foot wall surrounding rock, high mining speed and high mining productivity.

Description

Technical field: [0001] The invention belongs to the technical field of rock gold ore body mining in metal ore deposit mining, and in particular provides a filling and retaining ore mining method. Background technique [0002] There are three main types of mining methods for metal deposits: open-field mining, filling mining, and caving mining. Among them, the shallow hole ore retention method of the open field method is suitable for the mining of steeply inclined thin to medium-thick ore bodies with above-average stability of the ore rock; the upward horizontal layered dry filling mining method of the filling method is suitable for inclined and steeply inclined mines. Mining of ore bodies with poor rock stability or high ore value. Advantages of the shallow eye retention method: the mining process is simple, using domestic equipment, compared with the filling method, the production capacity of the stope is large, the mining efficiency is high, and the production cost is low...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C41/22
Inventor 姚香贺志宏唐有德
Owner 广东金鼎黄金有限公司
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