Problems in mine exploitation

In the mixed granite is low rate of a blocks of stone resources, mining enterprises to gain profits in the mining, it is necessary to pay greater efforts, in addition to other mines with the same specification exploitation, but also pay special attention to the following three questions.

1 to strict point off

In the Luxi uplift structure is not an isolated geological event mixed granite. Although rock mass scale is not large, but a large number; multiplicity lithology, difference is bigger, in addition to the mixed granite, including mixed adamellite, mixed granite flash diorite, mixed K-feldspar granite etc.; wider distribution, known in Mengyin County in Wanjiagou, Hei Shi Gou, Yiyuan County swallow nest, Dawa, Wu Li Gou, a hundred grass, stone bridge and more are exposed, already has a regional characteristic. This provides space and opportunity for mine reconnaissance.

Due to the small size of rock mass, the difference between the rock must be greater than differences in rock mass, so choosing to rock mass before the election and re-election rock internal favourable area.

From the theoretical analysis, the favorable rock mass has to be: the base material has a strong role in the process of remelting, and the size of the large scale, and the lithology is the mixed potassium feldspar granite. Strict selecting, mainly strict in selecting conditions, while also expanding range of options, mastery of the known rock, looking for an unknown rock, so that from a greater number of rock screened favorable rock mass and its favourable location, to improve mine average blocks rate of lay a solid foundation.

2 effectively strengthen the comprehensive utilization

Mixed granite belongs to high-grade special species in the region, blocks of luxury products of processing can not, you can also downgrade in processing low grade stone products, comprehensive utilization of a larger space.
Comprehensive utilization of not only in the factory, in the development of the mine. Therefore, it is suggested that the mines add blocks yard near the waste rock field, used to store the quality is still in question, acceptance does not pass the large blocks to the nearest processing of building stone, the rubble stone etc., waste to treasure, to reduce the discharge pressure.

3 pay attention to waste disposal problems

The amount of waste generated by the exploitation of these mines and should be a long-term point of view look at waste disposal work. Due to the stone mines stope size is generally small, waste rock must be strictly row to the outside of the realm of mining waste rock field, production of the larger mines, should also equipped with self discharging car, made the row of abandoned waste of special vehicles. Currently part of the mine stope using loader to waste push platform beneath the slopes on the mining, resulting in waste rock pressure or road congestion, hoping to correct.