Authors: L.A. Shevchenko, V.A. Zubareva

Title of the article: Influence of the combine working mode on gaselectricity from another coal with high loads forclearance

Year: 2018, Issue: 3, Pages: 50-55

Branch of knowledge: Earth sciences

Index UDK: 622.33.658.345

DOI: 10.26730/1999-4125-2018-3-50-55

Abstract: The article studies the relationship between the speed of the mining machine movement in the production face and its position relative to the longwall boundary on the one hand and the intensity of gas emission from the broken coal staying on the face conveyor on the other hand. The mass of coal that is separated from the massif depends on the distance of the mining machine from the conveyor gate and the gas production rate in the near-face space. This situation with a fully loaded conveyor can create a critical gas situation that can lead to an explosion of a methane-air mixture. The main factors that determine the intensity of gas emission from the broken coal are the gas content of the near-face part of the coal seam, the time during which the coal stays within the production face, and its fractional composition. The management of these parameters can provide some effect in creating a normal air and gas situation in the production face.

Key words: methane production rate broken coal production face gas content technological cycle

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