Coal caving method based on coal seam geographic information system

Abstract

The invention discloses a coal caving method based on a coal seam geographic information system, belongs to the technical field of automatic control of fully mechanized caving faces, and relates to hydraulic support coal caving opening parameters and coal caving step pitch control. According to the coal caving method based on the coal seam geographic information system, a spatial position relationmodel of a coal mining machine, a hydraulic support and a scraper conveyor is established, a coal and gangue recognition system and a coal flow detection system are established on a fully mechanizedcaving face, geographic information such as the coal and rock trend and the inventory of the working face is detected through the GIS technology, and a coal and rock distribution condition diagram ofthe whole working face is obtained;each coal caving parameter is determined by utilizing the coal and rock distribution condition diagram and historical coal caving database information, and the coalcaving parameters are recorded and corrected according to the gangue content and the top coal caving rate obtained by the coal and gangue recognition system and the coal flow detection system after each round of coal caving; and dynamically optimizing and correcting the coal caving parameters are carried out, so that the coal caving control method is automatically adjusted according to the thickness change of a coal seam, and the application adaptability of the fully mechanized caving technology is higher.

Description

technical field [0001] The invention belongs to the technical field of automatic control of fully mechanized caving working faces, and in particular relates to a coal caving method based on a coal seam geographic information system. Background technique [0002] Fully mechanized caving mining is a mechanized mining method for thick coal seams and extra thick coal seams, which eliminates the constraints of factors such as shearer mining height. It needs to be perfected urgently. The result of coal caving is limited by various conditions. How to select the most effective coal caving parameters according to the site conditions during the coal caving process is the main problem to achieve high production and high efficiency in top coal caving mining. At present, the setting of coal discharge parameters is mainly based on historical data. In the process of coal discharge, only a single coal discharge parameter can be implemented for complex and changeable coal seams, such as: coa...

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Problems solved by technology

[0003] Purpose of the invention: In order to overcome the shortcomings of single coal discharge parameter coal discharge in the working face where the thickness of the coal seam changes, the present invention proposes a coal discharge method based on the coal seam geographic information system (GIS), so that the coal discharge parameters can follow the coal seam in real time change with change

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