Combined downward mechanized filling mining method used for steeply inclined and extremely broken ore vein

Abstract

The invention discloses a combined downward mechanized filling mining method used for a steeply inclined and extremely broken ore vein. According to the combined downward mechanized filling mining method used for the steeply inclined and extremely broken ore vein, the downward drift filling mining method is adopted, stopes are arranged along the ore body trend, a plurality of routes are divided, each stope is equipped with a extravein raise, pedestrian ventilation and ore pass are realized through the extravein raise, a layered connection road is constructed to the ore body from the extraveinraise, a stope layered connection road is continuously constructed in the ore body, a connection access is constructed from the stope layered connection road to a connected stope, because of the smallwork amount of mining and cutting work, the two stopes can be combined into one stope for stopping, so that the stopping efficiency is improved, the mining cost is saved, mechanized ore removal is carried out through a minitype slag raking machine + self powered electric tipper or a sliding type loader, personnel does not be requires to enter the connection road, the mechanization degree is high,the safety is high, the mining and cutting work amount do not be increased, because the method do not need large cross-section when working, and the method can not only solve the problem of large quantities of the mining and cutting work amount caused by high mechanization, but also solve the problem of high labor intensity caused by low mechanization.

Description

technical field [0001] The invention belongs to the field of metal mine mining, in particular to a combined downward mechanized filling mining method for steeply inclined extremely broken veins. Background technique [0002] For the precious metal veins of medium-thick and steeply inclined broken ore rocks, the conventional mining method is the down-fill mining method. This type of method generally has problems such as low degree of mechanization, high support strength, high labor intensity, and low production efficiency. To increase the degree of mechanization, the generally adopted method is to excavate the ramp outside the vein. However, in this case, the amount of mining and cutting work required will increase, and when the grade of the ore body is relatively low, it will cause the problem of low economical mining or even failure to mine. [0003] CN108756885 A discloses a downward or upward cemented filling mechanized mining method for a sharply inclined ore body with ...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a safe and efficient mining method suitable for steeply inclined and extremely broken veins. This method can not only solve the problem of large mining and cutting engineering due to the high degree of mechanization, save mining costs, but also solve The problem of high labor intensity caused by reducing the degree of mechanization

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