Honey comb structure consolidated fill mining method

Abstract

The invention relates to a comb structure cementation-filling mining plan, which is suitable for the underground mining of a high-valuable, thick and broken mine. The invention is provided with a mining process: the mine is divided into a middle section along a trend of the mine, and the middle section is divided into subsections, and a stope structure of each subsection appears as combs which are mutually nested and across arranged; an upper (or lower) plate is respectively communicated with a lower (or upper) plate by cutting through a stringer along a stringer middle part, and a cutting-path is exploited along the trend in the lower (or upper) plate of the cut-stringer and a medium-length hole blasting is adopted to form a cutting groove; a vertical sector medium-length is arranged in the cut-stringer, and a rock blasting explosive is used for mine-caving; a chemical-charging device or a chemical-charging truck is used for charging chemicals, and a detonating cord and a non-conductive detonating fuse are combined for blasting; a scraper is used for taking ores out of the mine. For a first subsection, an upper half-part of the stope is mined, and partial ores are sent out after each blasting. And then a lower half-part of the stope of the first subsection is mined and the processes of cutting, rock-cutting, chemical-charging and blasting are the same as the former, and the ores of the subsection are sent out completely. And an empty stope is filled once. And after the filling, the stope of a neighboring second subsection is mined. The mining plan of the invention has the advantages of great production capability, low production cost, low loss and deficiency rate and reliable security.

Description

Technical field: [0001] The invention belongs to the field of mining production, and relates to a method for mining underground mineral deposits, which is suitable for the mining of thick mineral deposits with poor stability and broken rock, and can be applied to the mining of non-ferrous metal and gold mines. Background technique: [0002] With the continuous advancement of underground mining technology, the continuous emergence of new mining machinery and equipment, and the increasing demand for mineral resources in the world economy, from a global perspective, mining methods continue to be high-strength, low-cost, and highly mechanized , Safety, low loss and dilution, and a good working environment. Large-scale mining technology has become an important direction of the efforts of the mining community around the world. [0003] The three mining methods of open field method, caving method and filling method have their own unique advantages for different mining technical conditio...

AI Technical Summary

Problems solved by technology

However, no matter the mining method of rectangular approach or hexagonal approach, it has many disadvantages such as low production cost, small production capacity, complex process, etc., and it is difficult to maximize economic and social benefits. Therefore, the popularization and application of this mining method is restricted. However, there are very few mines in foreign countries that use the approach mining method, and they are often replaced by the caving mining method with a high loss and dilution rate to mine this type of deposit, such as the pillarless segmented caving method, natural caving method, etc. The ore loss rate during mining is generally between 20% and 35%, sometimes even higher, which is obviously not the best choice from the perspective of fully recovering resources.

[0007] From the perspective of the world at present, for the mining of underground thick and large deposits with high ore value under the condition of high-stress crushed ore rock, no mining method with low production cost, high production efficiency, and low loss and dilution has been found.