Study Of Ventilation System Optimization And Application On Merged Mine

Ventilation system is an important component of mine,undertakes the tasks of providing fresh air continuously,diluting and discharging toxic and hazardous gas and ensuring life safety of the wokers in mine. As a result, the reasonablity of ventiation systenm is critical to the work safety of mine. In the process of merging mine, optimization of the ventilation system is priority among priorities,and effects of reforming the system influence work safety directly.This text analyzes the stability of diagonal-connected branch of merged mine ventilation system and the problems of interation of untied operation of multi-fans according to particularity of the system and put forward analytical methods to the stability of diagonal-connection branch and solutions to ensure stability of united operation of multi-fans.It bases on the fact of merged mine ventilation system, researching and analyzing the optimization methods of ventilation transformation plan and comes up with the optimization methods of combinding qualitative analysis of ventilation network structure and quantitative analysis of ventilation network calculation.Linking with the current situation of merging of Faer mine ventilation system, it puts the results of research into application research. First of all, the resistance of Faer mine ventilation system is measured and ventilation resistance coefficent parameter base is created. Next,according to the character of prodution distribution and amount of wind the mine needs in the periods of run-through and pilot production, reforming plan of the system in the two periods is advanced. Contrasting different plans with the optimization methods,optimal case is radicated finally. After putting the optimal case into practice, every parameter of ventilation system is measured actually and these data prove the system is stable and secure, moreover every parameter is in reasonable range.Consequently,the research result is correct and reasonable.In the end, numerous safety problems in the process of merging mine are analyzed and corrsponding countermeasures are put forward.