Simulation test system and test method based on top coal caving

Abstract

The invention discloses a simulation test system and method based on top coal caving. The simulation test system comprises a base, a platform, a storage box, pushing assemblies, a supporting assembly and a conveying assembly, wherein the platform is connected with the base through a plurality of telescopic devices, and the telescopic devices can do telescopic motion independently or synchronously; the storage box is fixedly connected to an upper end face of the platform and at least provided with a feeding port and a discharging port; the pushing assemblies are arranged in the longitudinal direction of the platform, connected with the platform in a relative movement mode and used for pushing the top coal located in the storage box out of the discharging opening, and weighing sensors used for weighing the pushed top coal are arranged on the pushing assemblies; the supporting assembly is provided with a coal blocking plate, the coal blocking plate is obliquely placed at a lower end of the discharging opening, and a vibration sensor and a sound sensor are arranged on the coal blocking plate; the conveying assembly is arranged at a lower end of the coal blocking plate and used for conveying the top coal in the transverse direction. The top coal caving simulation test system provides a theoretical basis for realizing intelligent coal caving on site.

Description

technical field [0001] The invention relates to the technical field of top-coal caving mining, in particular to a simulation test system and test method based on top-coal caving. Background technique [0002] my country's coal resources are very rich in thick coal seams, accounting for 45% of the proven coal reserves, and the output of thick coal seams accounts for 40%-50% of the total output. The rational development of thick coal seams has an important impact on the development of my country's coal industry. The top-coal caving mining method is to arrange a longwall working face with a mining height of 2m-3m along the bottom of the coal seam in the thick coal seam, and use comprehensive mechanized coal mining technology for mining, using the effect of mine pressure or supplemented by loosening blasting, etc. After the top coal is broken into bulk, it is released through the "coal discharge window" behind or above the support, and is transported out of the working face by t...

AI Technical Summary

Problems solved by technology

Although the various coal-gangue interface identification methods mentioned above have achieved certain results, due to the complexity of the underground environment, it is difficult to accurately judge the coal-gangue boundary from a single technical means, and the actual application effec

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