Double ii+u type mining quasi-system for mechanized continuous mining of bauxite mines

Abstract

The invention discloses a double-II+U-shaped mining preparation system for mechanical continuous mining in a bauxite mine zone. Two sets of mining area track and air inlet upward roadways and rubber belt and air return upward roadways are arranged in a double-II shape; multiple long-wall-type mechanical continuous stoping work faces are arranged in a U shape, each long-wall-type mechanical continuous stoping work face is composed of an intake airway, an open-off upward roadway and a return airway, and the stoping directions of the long-wall-type mechanical continuous stoping work faces are sequentially opposite; every two adjacent stoping work faces are communicated through a work face replacement connecting roadway for transferring production equipment. Downward ventilation is adopted by the stoping work faces; the ore transport direction is always the same as the air flow direction and is always located in air return flow; material, equipment and personnel transportation are all located in the air return flow. According to the double-II+U-shaped mining preparation system, on the premise of ensuring reliable ventilation and clean air, the scale production requirements for bauxite mine mechanical continuous ore breaking, low-energy-consumption continuous ore drawing, work face quick replacing and the like can be met, and the advantages of being high in single-face production capacity, short in working face transferring time consumption, small in ventilation resistance, high in air flow quality, low in mining area transportation energy consumption and the like are achieved.

Description

technical field [0001] The present invention relates to an arrangement of shafts and roadways in metal mines, in particular to a double II+U type mining quasi-system for mechanized continuous mining of bauxite mines, which is suitable for the mechanization, Continuous and large-scale mining. Background technique [0002] With the continuous development of mining technology and the gradual reduction of the grade of mineral resources, the shortcomings of the traditional room-and-pillar method, such as low production efficiency, large waste of resources, poor operation continuity, and complex mining system, are in line with the urgent needs of the national economy for large-scale mining of mineral resources. There are growing contradictions among them. At the same time, the drill-and-blast method that currently dominates metal mining can easily induce hazards such as rockburst, large deformation of the roadway, and partition rupture after the mine enters deep mining. In order...

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Problems solved by technology

[0002] With the continuous development of mining technology and the gradual reduction of the grade of mineral resources, the shortcomings of the traditional room-and-pillar method, such as low production efficiency, large waste of resources, poor operation continuity, and complex mining system, are in line with the urgent needs of the national economy for large-scale mining of mineral resources. There is a growing conflict between

At the same time, the current drilling and blasting method that dominates metal mining is prone to hazards such as rockburst, large deformation of the roadway, and partition rupture after the mine enters deep mining.

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