Directions of mine ventilation development

Abstract

Introduction. Underground mining is carried out under conditions of intensive development of gas from combustion-engined vehicles and blasting operations, as well as under dust pollution and workplace temperature that violate health and safety regulations. Aerological safety provision by improving mine ventilation efficiency is therefore highly relevant. Methods of research. It is reasonable to ventilate a multi-horizon mine using an automated horizon ventilation system that is responsible for the compliance of aerological conditions in workplaces with the safety requirements and consists of centralized and decentralized blocks. Research results and analysis. The centralized block redistributes air flows between entries of a horizon. The decentralized block is a set of auxiliary fans represented by intelligent mechatronic modules supplying fresh air to the workplaces. The intellectualization of the auxiliary fan places high demands on the quality of the air duct, because the efficiency of ventilation in the workplace depends on its reliable functioning. Conclusions. Air duct made of hydraulically smooth polymer units sealed with each other allows to minimize auxiliary fan energy consumption under guaranteed supply of the required amount of air into the workplace. Horizon ventilation computer-aided control and auxiliary fans with sealed polymer air ducts will make it possible to create systems with the most advantageous combination of cost and quality