Miroshnychenko V. Improvement of methods of monitoring of aerogas-dynamic parameters and assessment of aerological risk of ventilation systems of coal mines with the use of smart technologies

Object of research - aerogas-dynamic processes in mine ventilation systems. The purpose of the work is to improve methods, establish patterns and develop information and measurement smart technologies for monitoring complex aerogas-dynamic networks of coal mines to increase safety and reduce accidents in the coal industry. Research methods - to achieve the objectives of the work used a comprehensive research method, including: analysis of existing literature sources and generalization of scientific and technical achievements in improving safety, monitoring and control of aerogas-dynamic parameters and aerological risk assessment of coal mine ventilation systems, risk theory, theory control, graph theory, nonlinear programming, mathematical analysis, probability theory and mathematical statistics using modern information systems and computer systems. For the first time a method was developed to determine the gassing zones of the mine ventilation network of coal mines when turning exogenous fire and established patterns of changes in the concentration of gaseous products in the first circuit, which directly receives gaseous products from the fire, products from the fire in the first development of the recirculation circuit, and the total air flow of all workings of the gassing zone. For the first time, a method was developed to determine the risk of sudden emissions of coal, rock and gas, taking into account mining and geological, mining and human factors, and the dependence of risk change on the elimination factor, which characterizes the human factor. For the first time the criterion of adequacy of information-measuring smart technologies of monitoring of complex aerogas-dynamic networks - maximum inconsistency of air consumption in the simulated network nodes is substantiated and the problem of structural identification of aerodynamic parameters of mine ventilation network in incomplete and insufficiently reliable information is solved. An instruction has been developed and implemented - a corporate standard that regulates the safe conduct of mining operations at DTEK ENERGO's coal mines. It describes an important technical aspect aimed at reducing the risks of the gas factor for benches that are running out of reserves using a pillar development system. The proposed scheme of technological processes of gas insulation of dead ends of ventilation drifts is tested in practice; good results in terms of safety and cost-effectiveness. It is mandatory for use in DTEK mines and can be recommended for other coal mining companies developing gas-bearing formations.