Coal discharge method based on coal seam geographic information system

Abstract

The invention discloses a coal discharge method based on a coal seam geographic information system, belongs to the technical field of automatic control of a fully mechanized caving face, and relates to the parameters of a hydraulic support coal discharge port and the control of the coal discharge step distance. Through the establishment of the three-machine space position relationship model of the coal shearer, hydraulic support and scraper conveyor, and the establishment of a coal gangue identification system and a coal flow detection system in the fully mechanized caving face, use GIS technology to detect the geographical information of the working face, such as the direction of coal and rock and occurrence, to obtain the coal and rock distribution map of the whole working face. Use the coal rock distribution status map and the historical coal discharge database information to determine the coal discharge parameters, and correct the coal discharge according to the gangue content rate and top coal discharge rate records obtained by the coal gangue identification system and coal flow detection system after each round of coal discharge parameter. The coal discharge parameters are dynamically optimized and corrected, so that the control coal discharge method can be adjusted according to the change of the coal seam thickness, so that the application adaptability of the fully mechanized caving process is stronger.

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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