【正文】 ............................................................ 41 確定礦井主要通風(fēng)機(jī)的工作方法 ......................................................... 41 通風(fēng)系統(tǒng)的選擇 ..................................................................................... 42 計(jì)算和分配礦井總風(fēng)量 ................................................................................ 48 確定礦井通風(fēng)阻力容易和困難兩個(gè)時(shí)期的礦井總風(fēng)量 ..................... 48 礦井風(fēng)量分配與調(diào)節(jié) ............................................................................. 57 風(fēng)速驗(yàn)算 ................................................................................................. 59 計(jì)算井巷通風(fēng)總阻力 .................................................................................... 65 繪制通風(fēng)容易時(shí)期和困難時(shí)期的網(wǎng)絡(luò)圖 ............................................. 65 編制兩個(gè)時(shí)期井巷通風(fēng)阻力計(jì)算表 ...................................................... 67 礦井自然風(fēng)壓的測算 ............................................................................. 72 計(jì)算兩個(gè)時(shí)期的礦井總風(fēng)阻和總等積孔 ............................................. 73 選擇礦井通風(fēng)設(shè)備 ........................................................................................ 75 選擇礦井通風(fēng)設(shè)備的要求 ..................................................................... 75 主要通風(fēng)機(jī)的選擇 ................................................................................. 75 概算礦井通風(fēng)電費(fèi) ........................................................................................ 82 4 6 通風(fēng)構(gòu)筑物的設(shè)置與主要通風(fēng)機(jī)附屬裝置 ...................................................... 85 通風(fēng)構(gòu)筑物的設(shè)置與要求 ............................................................................ 85 風(fēng)門 ......................................................................................................... 85 風(fēng)窗 ......................................................................................................... 86 .................................................................................................. 86 主要通風(fēng)機(jī)附屬設(shè)備 .................................................................................... 86 7 災(zāi)害預(yù)防措施 ....................................................................................................... 88 瓦斯防治 ........................................................................................................ 88 粉塵防治 ........................................................................................................ 89 火災(zāi)預(yù)防 ........................................................................................................ 90 井下火災(zāi)預(yù)防 ......................................................................................... 90 煤層自燃預(yù)防措施 .................................................................................. 91 井下水災(zāi)防治 ................................................................................................ 92 結(jié) 論 ....................................................................................................................... 93 致 謝 ....................................................................................................................... 95 參考文獻(xiàn) ................................................................................................................... 96 5 Contents ABSTRACT ................................................................................ 錯(cuò)誤 !未定義書簽。 關(guān)鍵詞 : 開拓方式；通風(fēng)系統(tǒng)；機(jī)械化 II ABSTRACT The design is a preliminary design of the Qixing coal mine based on the real situation. The area of mine designs about 13km2 , having two main layer, 16 and 21, about 12 degrees, m thick on average, and the whole geological structure is relatively simple. The gas flowvolume was about , and the volume of water is m3/h. The design adopts the development way of vertical shaft multilevel mining, using the mode of panel type, the long wall mining coal method, and the synthesis mechanization returns picks the craft, all cross falls law processing to pick the depletion region. The mine’s designed production ability is Mt/a, and with a mine life of a. It’s ventilative way is boundary ventilation and working method of fan is exhausting. The design has conducted the preliminary design of pioneering way, preparation methods, exploitation of mining method. And the equipment selection calculation of local fan and main ventilator, as well as mine technical safety measures and environmental protection. In the design process, the use of advanced technology and equipment improves the mechanization level and mine production efficiency. Keywords: explore ways。 本設(shè)計(jì)主要對礦井開拓方式、準(zhǔn) 備方式、采煤方法進(jìn)行了初步設(shè)計(jì)，對局扇和主扇進(jìn)行了設(shè)備選型計(jì)算，并對礦井安全技術(shù)措施和環(huán)境保護(hù)提出要求，完成整個(gè)礦井的初步設(shè)計(jì)。設(shè)計(jì)生產(chǎn)能力 ，服務(wù)年限為 a。煤層平均厚度 m，整體井田地質(zhì)條件比較簡單，相對瓦斯涌出量為 ，井田涌水涌出量為 。 I 摘 要 本設(shè)計(jì)是根據(jù)七星煤礦的實(shí)際情況進(jìn)行的初步設(shè)計(jì)。設(shè)計(jì)的井田面積約為13 km2，主采煤層 2 層，即 16 號和 21 號煤層，平均傾角 12176。設(shè)計(jì)采用立井多水平開采的開拓方式，采用采區(qū)式準(zhǔn)備方式，采用走向長壁采煤方法，綜合機(jī)械化的回采工藝，全部跨落法處理采空區(qū)。 礦井通風(fēng)方式為 兩翼對角式，通風(fēng)方法為抽出式。在設(shè)計(jì)過程中，盡量采用先進(jìn)的技術(shù)和設(shè)備，提高礦井的機(jī)械化裝備水平和生產(chǎn)效率。 ventilation system。 ABSTRACT ................................................................................ 錯(cuò)誤 !未定義書簽。 Mining area situation .......................................................... 錯(cuò)誤 !未定義書簽。 Terrain topography ...................................................... 錯(cuò)誤 !未定義書簽。 meteorology ................................................................. 錯(cuò)誤 !未定義書簽。 The mining area economic .......................................... 錯(cuò)誤 !未定義書簽。 Local environmental current situation and existing problems ................... 4 Geological characteristics of the mining field .................................................. 4 structure .................................................................................... 5 Coal seam and coal quality ........................................................................ 5 Geological exploration degree ................................................................... 6 Mine safety situation ...........................