A statistical device and method for top-coal discharge rate and gangue flow rate

Abstract

The invention discloses a statistical device and method for the discharge rate of top coal and the rate of gangue contained in coal flow. The device and method for counting the discharge rate of the top coal and the gangue-containing rate of the gangue flow are composed of a coal discharge movable base plate, a coal discharge opening size adjustment plate, a coal discharge bottom plate transmission device, a coal discharge motor, a coal discharge motor fixing mechanism, a coal discharge Device, coal discharge observation window, coal receiving mobile trolley, coal receiving trolley transmission device, coal receiving motor, coal receiving observation window, coal discharging device support, control device, left front floor support bearing, right front floor support wheel, left rear floor support Bearing, right rear floor support wheel; in the fully mechanized top-coal caving production process, the statistics of the top-coal discharge rate in the coal-caving process can be realized, and the relationship between the top-coal discharge rate and the gangue content in the gangue flow can be obtained, thereby revealing The law of deep coal discharge.

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] Coal resources are in a dominant position in my country's energy resources and play a pivotal role in the entire national economy. Fully mechanized top-coal caving mining can achieve high yield, high efficiency, and low consumption. It is one of the important mining techniques of coal mining in my country. Therefore, the research and promotion of top-coal caving technology is of great significance to the development of my country's coal industry. During the coal discharge process, the coal discharge control generally adopts the principle of "see gangue and close the window" to control the operation valve to close the coal discharge window to stop coal discharge. The coal loss in this coal discharge process accounts for 64% of the total loss. In order to improve the disc...

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Problems solved by technology

[0006] The purpose of the embodiments of the present invention is to provide a statistical device and method for the discharge rate of top coal and gangue flow, aiming to solve the problem that the discharge rate of top coal in the fully mechanized top coal caving face cannot be predicted at present, and to overcome the current lack of Advanced experimental means and statistical calculation methods realize the shortcomings of the prediction of top coal discharge rate in the process of coal discharge, thus revealing the law of deep coal discharge

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