Abstract: Based on the analysis of the basic conditions of the ventilation system construction in 50 metal mines in China during 1996—2006, the paper describes the related main progress that have been scored: the further extended application of various types of multi-staged fan station ventilation, sub-area-unit subsystem ventilation mode, technology of preheating and pre-cooling the inlet airflow, air-curtain controlling technology and mine-use energy-saving fan, etc.; and the related evident technical effect and electricity reduction benefit that have been achieved: an average effective air rate of 71.57%, an average fan efficiency of 74.17% and an annual electricity reduction of 3 459.51×104 kW·h. A basically complete theoretical system of China's metal mine ventilation and the mine ventilation technology with specific features have been preliminarily formed, an important contribution to the mine safety production.

Key words: Metal mine, Ventilation system, Multi-staged fan station, Energy-saving fan