Intelligent coal caving mechanism of full-mechanized caving mining

Abstract

The invention discloses an intelligent coal caving mechanism of full-mechanized caving mining, and belongs to the technical field of full-mechanized top coal caving mining equipment. The intelligent coal caving mechanism of full-mechanized caving mining comprises a tail beam outer box, tail beam baffle, a monitoring system and a controller, wherein the monitoring system comprises a coal and ganguerecognizing instrument, a gas monitoring instrument and an ultrasonic crushing instrument; the upper and lower faces of the tail beam outer box are provided with coal caving ports respectively, a tail beam insertion plate can be telescopically inserted into the tail beam outer box through driving of a driving mechanism and used for opening or closing the coal caving ports; the lower surface of the tail beam outer box is provided with the coal and gangue recognizing instrument and the ultrasonic crushing instrument, and the gas monitoring instrument is arranged on the lower surface of the front end of the tail beam insertion plate. The intelligent coal caving mechanism of full-mechanized caving mining has the advantages that effective discharging of top coals can be achieved under the situation that a hydraulic support tail beam does not rotates, visible gangues are automatically closed, coal briquettes with larger blockness and not passing through a coal caving window is broken safelyby adopting an ultrasonic disruption technology to ensure smooth discharging of the top coals, the gas monitoring instrument monitors the gas concentration in a gob in real time, equipment can be controlled to be turned off when gas is excessive, thereby achieving safe, efficient and intelligent production.

Description

technical field [0001] The invention relates to the technical field of comprehensive top coal caving mining equipment, in particular to an intelligent coal caving mechanism for fully mechanized caving mining that can effectively caving top coal when the tail beam of the caving transition support is difficult to rotate. Background technique [0002] The top-coal caving mining technology is mainly used in the thick coal seam mining process, and the coal caving process is realized by relying on the rotation of the tail beam of the top-coal caving hydraulic support. Coal design is relatively lacking. At the end of the working face, due to the influence of the position of the head of the scraper conveyor and the positional relationship between the scraper conveyor and the reloader, the scraper conveyor will have a certain slope increase at the head, thus hindering the rotation of the tail beam of the transition bracket. Caused the phenomenon that end support can't put coal, caus...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a comprehensive coal caving system that can automatically close the coal discharge opening when the ratio of coal and gangue is large, ensure the quality of coal caving, automatically shut down when the gas is excessive, and ensure production safety. The intelligent coal discharge mechanism for mining is used to solve the technical problems in the above-mentioned background technology that the top coal caving transition support is difficult to discharge coal and the coal discharge window is blocked due to excessive coal lumps

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