Expansion To The Mine Ventilation System Transformation Research

With the development of the mining industry, most of mine have the original on the basis of production capacity and further expand the production scale, and the ability of the mine was not changed in time . the ability can not meet production needs. Therefore, it is must be do a transformation to create a good working environment and protect health of for the underground workers.Based on the comprehensive survey, measurement and evaluation on a mine ventilation system,Papers summarizes the metal mine mine ventilation system investigation, measurement and appraisal method, and analyzes the problems existing in the system of it, drawn up several feasible solutions to improve mine ventilation system. Analysis economic feasibility and implementation effect by comparison and computer software simulation to filtrated best implementation plan, namely: (1) improve the west Ventilation network , near36 line,from 1390m extends to the original level of the total return in the western, and on the bottom of the well to add a zone return air contact auxiliary fan (K40 - 4 No. 15) enhancing return effect. (2) strengthen the wind flows. Installed air curtain at pregrouting shimen,somelevels and Ramp inlet, to prevent air circuit, set up some control ventilation structures at Air leakage location to control air flows ,such as air doors. (3) change main fan. change the main fan DK40-8 No 24 into DK40-8 No. 26.The results of computer simulation solver show that the mine total inlet capacity of 218.7m3 / s, to meet the mine the total required air volume 206.4 m3 / s requirements, and all the major into the air shaft, Air Shaft, operating the middle into the wind tunnel and the panel Face the wind volume to meet the requirements after transformation, the ventilation effect is good.