【正文】 ................................................................................................... 24 采區(qū)內(nèi)煤層開(kāi)采順序 .............................................................................. 24 采區(qū)進(jìn)、回風(fēng)上山選擇及回采工作面風(fēng)流方向確定 .......................... 24 局部通風(fēng)設(shè)計(jì) ................................................................................................ 26 局部通風(fēng)設(shè)計(jì)原則 .................................................................................. 26 局部通風(fēng)方法 .......................................................................................... 27 風(fēng)筒的選擇 .............................................................................................. 27 通風(fēng)機(jī)的選擇 ........................................................................................... 28 局部通風(fēng)的安全措施 .............................................................................. 32 5 礦井通風(fēng)設(shè)計(jì) ....................................................................................................... 35 概況 ................................................................................................................ 35 井田概況 .................................................................................................. 35 對(duì)各水平瓦斯等級(jí)變化的預(yù)計(jì) .............................................................. 35 擬定礦井通風(fēng)系統(tǒng) ........................................................................................ 35 確定礦井主要通風(fēng)機(jī)的工作方法 .......................................................... 35 通風(fēng)系統(tǒng)的選擇 ...................................................................................... 36 計(jì)算和分配礦井總風(fēng)量 ................................................................................ 40 確定礦井通風(fēng)阻力容易和困難時(shí)期的礦井總風(fēng)量 .............................. 40 前期礦井風(fēng)量計(jì)算 .................................................................................. 40 后期礦井風(fēng)量計(jì)算 .................................................................................. 45 風(fēng)量分配 .................................................................................................. 49 III 風(fēng)速驗(yàn)算 .................................................................................................. 50 計(jì)算井巷通風(fēng)總阻力 .................................................................................... 53 繪制通風(fēng)前期和后期期的網(wǎng)絡(luò)圖 .......................................................... 54 制兩個(gè)時(shí)期井巷通風(fēng)阻力計(jì)算表 .......................................................... 56 礦井自然風(fēng)壓 .......................................................................................... 61 計(jì)算礦井總風(fēng)阻和總等積孔 ................................................................... 61 選擇礦井通風(fēng)設(shè)備 ........................................................................................ 62 礦井通風(fēng)設(shè)備選擇的要求 ...................................................................... 62 主要通風(fēng)機(jī)的選擇 .................................................................................. 63 主要通風(fēng)機(jī)參數(shù) ...................................................................................... 67 選擇電動(dòng) 機(jī) ............................................................................................... 67 概算礦井通風(fēng)電費(fèi) ........................................................................................ 68 6 通風(fēng)構(gòu)筑物的設(shè)置 ............................................................................................... 70 通風(fēng)構(gòu)筑物的設(shè)置與要求 ............................................................................ 70 通風(fēng)網(wǎng)絡(luò)的要求 ...................................................................................... 70 通風(fēng)構(gòu)筑物的要求 .................................................................................. 70 主要通風(fēng)機(jī)附屬設(shè)備設(shè)置與要求風(fēng)硐 ...................................................... 71 7 災(zāi)害預(yù)防措施 ....................................................................................................... 73 瓦斯防治 ........................................................................................................ 73 風(fēng)塵防治 ........................................................................................................ 74 井下火災(zāi)預(yù)防 ................................................................................................ 75 井下水災(zāi)防治 ................................................................................................ 75 結(jié) 論 ....................................................................................................................... 77 致 謝 ....................................................................................................................... 78 參考文獻(xiàn) ................................................................................................................... 79 IV CONTENTS ABSTRACT ................................................................................................................ I Chapter one mining and security situation field geological feature ..................... 1 Mining area survey ............................................................................................ 1 Location and transportation......................................................................... 1 Terrain and river .......................................................................................... 1 weather conditions ...................................................................................... 2 Mine water .................................................................................................. 2 geological features ............................................................................................. 2 Geological structure .................................................................................... 2 structure ....................................................................................................... 3 coal seam ..................................................................................................... 3 Survey work .......