【文章內(nèi)容簡介】 ......................................................................................... 6 Mine Safety Overview ....................................................................................... 6 Regional hydrogeology ............................................................................... 6 Ida Min geological conditions ..................................................................... 7 Chapter two coal reserves and production capacity .............................................. 9 The boundary and reserves ................................................................................ 9 Field boundaries .......................................................................................... 9 Mine production capacity and service life of .................................................. 10 Mine system of work ................................................................................. 10 Chapter three field explored and mining area ventilation .................................. 11 Field development way.....................................................................................11 Field development way ..............................................................................11 The wellbore number of location ...............................................................11 Horizontal partitioning and vertical highstage ................................................11 V The main roadway section......................................................................... 12 Mining area continue ....................................................................................... 22 Chapter four mining ventilation design ................................................................ 23 Mining area ventilation.................................................................................... 23 Mining situation ........................................................................................ 23 Panel ventilation design principles and requirements ............................... 23 Mining area parameters ............................................................................. 24 Coal mining order in mining areas ............................................................ 24 Mining area into the air rise and face airflow direction ............................ 24 Local ventilation design................................................................................... 26 Local exhaust ventilation system design principles .................................. 26 Local ventilation methods ......................................................................... 27 The choice of a hairdryer .......................................................................... 27 Local fan selection .................................................................................... 28 Local ventilation safety measures ............................................................. 32 Chapter five design of Mine Ventilation ............................................................... 35 survey............................................................................................................... 35 Ida profile .................................................................................................. 35 Estimated on each level gas level change ................................................. 35 The development of the mine ventilation system ............................................ 35 Determine the working methods of the main mine fan ............................. 35 The choice of ventilation system............................................................... 36 Total air volume in the calculation and distribution of mine ........................... 40 Mine resistance to easy and difficult period of the total air volume ......... 40 The mine air quantity calculation .............................................................. 40 Later mine air quantity calculation............................................................ 45 Air distribution and regulation .................................................................. 49 VI speed checking.................................................................................. 50 Calculate the total resistance of the Mine Ventilation ..................................... 53 Draw the work diagram of the ventilation easy times and difficult times ............................................................................................................................ 54 The preparation of the two periods mine ventilation resistance calculatio 56 Mine the natural pressure of the estimates ................................................ 61 Calculate mine the total drag of the two periods and the total plot holes. 61 Select the mine ventilation .............................................................................. 62 Select the mine ventilation requirements .................................................. 62 The choice of main ventilator s ................................................................. 63 Main fan parameters .................................................................................. 67 Select motor ............................................................................................ 67 Budget for the mine ventilation electricity ...................................................... 68 Chapter six ventilation structures set .................................................................... 70 Settings and requirements of the ventilation structures ................................... 70 The requirements of the ventilation work ............................................ 70 Construction requirements of the ventilation structures ........................... 70 The main fan au