Automatic coal feeding apparatus for fully mechanized coal face and coal feeding process recognition method

Abstract

The invention discloses an automatic coal feeding apparatus for fully mechanized coal face and a coal feeding process recognition method. In fully mechanized top coal feeding production process, full coal feeding phase, 0-30% gangue-coal mixed coal feeding phase, 30-50% gangue-coal mixed coal feeding phase, 50-70% gangue-coal mixed coal feeding phase, full gangue coal feeding phase and coal feeding faults of coal blockage and locking in the top coal feeding process can be recognized, coal feeding, coal feeding stop control and locked coal lump breakage control are achieved, and automatic coal feeding is achieved; the automatic coal feeding apparatus for fully mechanized coal face comprises a camera, a video collection card, an acoustic sensor, a vibration sensor, a pressure sensor, a data collection card, a computer, a coal feeding plate controller, and a tail beam cylinder controller, coal feeding phase recognition in the coal feeding process and recognizing the coal feeding faults of coal blocking and locking in the coal feeding process are achieved, a coal feeding plate or tail beam of a top coal feeding hydraulic support is under control, and automatic coal feeding and automatic coal breaking in case of coal blocking and locking faults are achieved; the coal feeding process recognition method is capable of recognizing full coal feeding phase, 0-30% gangue-coal mixed coal feeding phase, 30-50% gangue-coal mixed coal feeding phase, 50-70% gangue-coal mixed coal feeding phase, full gangue coal feeding phase, and coal feeding faults of coal blockage and locking in the top coal feeding process.

Description

technical field [0001] The patent of the invention relates to the mining of top-coal caving working faces, especially the mining of middle and low top-coal caving working faces. Background technique [0002] In the coal caving process of top-coal caving mining, the free-falling top-coal caving is generally divided into three layers, that is, coal seam, coal gangue mixed layer, and gangue layer. Therefore, the coal discharge process can basically be divided into three stages: the first stage is the coal drop stage, the second stage is the gangue mixing stage, and the last stage is the gangue stage. Due to the complexity of the production environment of the underground working face of coal mines and the lack of a reliable sensor for roof coal seam thickness and coal-rock interface identification, coal-rock identification has always been a technical difficulty in coal seam mining. In the current coal discharge control, the entire coal discharge process is completed by manual o...

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Problems solved by technology

[0006] The purpose of the embodiments of the present invention is to provide a fully mechanized coal caving face automatic coal discharge device and coal discharge process identification method, aiming at solving the current problem of fully mechanized coal caving coal caving face automation, to overcome the current lack of advanced detection means and The computer method realizes the coal gangue identification and coal blocking and coal jamming coal discharge fault identification in the coal discharge process, and the shortcomings of manual control of coal discharge can only be controlled by artificial eyes and ears.

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