METHOD FOR ELIMINATION OF CRITICALNESS IN COMPLEX NETWORK VENTILATION CONSTRUCTIONS

摘要

The invention relates to a method for eliminating criticalness related to ventilation constructions in complex networks, which may be applied in any underground mine works for exploitation of useful mineral substances. According to the invention, the method consists, in a first stage, in modelling, solving and optimizing a ventilation network under normal working conditions, followed by setting the operational parameters of an active ventilator, then setting the influence zones specific for each main ventilation station, after which the influence of ventilation constructions upon the active ventilators operating stability is established and the critical ventilation constructions are identified; further on, the elimination of criticalness of the ventilation construction is initiated by reducing the total resistance generated by achieving a parallel connection with the branch on which the critical construction is placed and on which a ventilation construction of equivalent resistance is positioned, and the effect of this method on the operational parameters of the main ventilation station is established, after which the criticalness of the ventilation construction is finally eliminated by dispersing the total resistance generated by its disposal upstream or downstream the branch on which the critical construction is placed and on which a ventilation construction with equivalent resistance is placed, and the effect of this method upon the ventilation station operational parameters is established.