Authors: L.E. Mametyev, A.A. Khoreshok, A.M. Tsekhin, A.Yu. Borisov

Title of the article: Improving the efficiency of drilling degasification wells and transportation of destroyed coal

Year: 2018, Issue: 1, Pages: 106-111

Branch of knowledge: Transport, mine and construction engineering

Index UDK: 622.232.76

DOI: 10.26730/1999-4125-2018-1-106-111

Abstract: Relevant to the present research are to improve the process of drilling degasification wells in highly gas-bearing formations and transport of drilling products. The gas content of coal seams in the Kuzbass mines 15-30 m3/t increases the likelihood of methane release into production in longwall entries. For this reason, increases the likelihood of accidents in the mines that, as a consequence, inhibits the load on the longwall face. To prevent threat of sudden outbursts of methane production in rooms of their underlying high-gas-carrying reservoir-satellite is recommended to use degassing wells. The analysis of the existing constructions of drilling rigs for the implementation of this technological operation and summarized the experience of their use in coal mines. The regularities of the process of transportation of the destroyed material by horizontal auger drilling rig. In the process of drilling a well implemented two processes: the destruction of the bottomhole of the well; transporting of destroyed material of screw drill rod. It is noted that under other equal conditions 80-90% of the power is spent on transportation and friction of the auger rate on the well wall. The aim of this work is to link the design and operating parameters used in the technological process of the functional mining machines: drilling of degassing machine and a scraper conveyor which performs the function of accumulation of coal destroyed. The results of calculations of volume of coal arriving from the wells with different parameters: diameter and depth. Substantiated the parameters of the accumulation conveyors – loading elevators: the cross section of the trough and their required length depending on the diameter and depth of degassing wells.

Key words: drilling rig the expander of the well the volume of the destroyed coal scraper conveyor the pan the length of the conveyor

CITE DOWNLOAD