Mining method with mining-dressing and filling treatment

Abstract

The invention discloses a mining method with mining-dressing and filling treatment, which includes design of main gangue sources for a little gangue working face, and gangue-reducing measures; ganguesorting system arrangement and equipment, and sorting process; filling-cooperated caving-type coal efficient stoping system arrangement and equipment, and production process; environmental influence pretreatment and pre-control measures before and after gangue filling; design principle and steps of the mining method with 'mining-dressing and filling treatment'. The method herein helps solve the long-range conveying problem of gangue, reduce underground gangue lifting cost, reduce mine auxiliary lifting and surface coal washery burden, effectively treat coal gangue to reduce surface piling areaof coal gangue, reduce mine ecological environment damage, protect the ecological environment; gangue filling and coal efficient stoping face has high unit production under high unit efficiency, therequirements of modern mines for production capacity can be met, and the method herein has a good application prospect.

Description

technical field [0001] The invention relates to a mine mining design method, in particular to a mine mining, selection and filling method, and belongs to the technical field of coal mining. Background technique [0002] With the enlargement of mines and the modernization of coal mining technology, especially the widespread application of top coal mining technology and a large number of thin coal seam mining technologies, a large amount of gangue is mixed with the top and bottom of the coal seam of the working face, resulting in an increase in the amount of gangue mixed into the raw coal. In traditional coal mining operations, the mined raw coal does not undergo coal gangue sorting in the underground, but directly enters the coal bunker at the bottom of the shaft, and is lifted by the hoisting system to the well before the gangue discharge operation is performed, and the gangue discharged needs to be installed. Dedicated storage space. Because the raw coal is transported fro...

AI Technical Summary

Problems solved by technology

In traditional coal mining operations, the mined raw coal does not undergo coal gangue sorting in the underground, but directly enters the coal bunker at the bottom of the shaft, and is lifted by the hoisting system to the well before the gangue discharge operation is performed, and the gangue discharged needs to be installed. dedicated storage space

Because the raw coal is transported from the underground to the ground before washing and processing, this not only causes a waste of energy consumption in gangue transportation, but also tends to spontaneously ignite when the gangue is piled up after selection, which not only occupies a large amount of land, but also seriously pollutes the ecological environment, causing environmental pollution in the mining area. increasingly prominent

In addition, the waste rock transportation and lifting system in the underground coal flow system belong to the ineffective transportation of the mine. This part of ineffective transportation will greatly reduce the actual production capacity of the mine and increase the cost of equipment.

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