【正文】 ........60 礦井總風(fēng)量分配及風(fēng)速驗(yàn)算 ................................. 61 風(fēng)量分配 ...................................................61 風(fēng)速驗(yàn)算 ...................................................61 通風(fēng)阻力計算 ............................................. 62 計算原則 ...................................................62 ................................63 礦井最大阻力路線 ...........................................63 各段通風(fēng)阻力 ...............................................64 全礦通風(fēng)總阻力 .............................................64 礦井風(fēng)阻 ...................................................65 礦井等級 ...................................................65 礦井主要通風(fēng)機(jī)的 選取 ..................................... 74 選擇通風(fēng)機(jī)的基本原則 .......................................74 礦井自然風(fēng)壓 ...............................................74 選擇通風(fēng)機(jī) .................................................74 電機(jī)選型 ...................................................77 礦井通風(fēng)費(fèi)用概算 ...........................................79 風(fēng)機(jī)附屬裝置 ............................................ 80 通風(fēng)系統(tǒng)評價 ............................................ 81 5 礦井安全 ................................................ 82 礦井安全概況 ............................................. 82 自燃發(fā)火 ...................................................82 地?zé)釣?zāi)害 ...................................................82 防塵 .......................................................83 礦井防塵安全 設(shè)計 ......................................... 83 粉塵的危害 .................................................83 防塵措施概況 ...............................................84 工作面煤層注水設(shè)計 ....................................... 85 礦井煤層概況 ...............................................85 注水方式的選取 .............................................85 煤層注水工藝 ...............................................85 ............................................88 煤層注水流程工藝 ...........................................89 井下防爆及隔爆 ........................................... 90 防爆措施 ...................................................90 ...................................................90 參考文獻(xiàn) .................................................. 92 專 題部分 .................................................. 93 綜放工作面綜合噴霧降塵方法的研究 ............................ 94 1 緒論 ................................................... 94 煤塵的危害性分析 ......................................... 96 粉塵的自燃性 ...............................................96 煤塵爆炸 ...................................................96 塵肺病與粉塵的關(guān)系 .........................................96 粉塵治理的研究動態(tài)和發(fā)展方向 ............................. 97 2 噴霧降塵關(guān)鍵問題研究 ..................................... 99 降塵效率研究 ............................................. 99 霧化性能對降塵的影響 .......................................99 水霧粒度與供水壓力的關(guān)系 ...................................99 降塵效率分析 ..............................................102 霧化噴嘴的結(jié)構(gòu)設(shè)計 ...................................... 107 3 綜放工作面產(chǎn)塵機(jī)理分析 .................................. 107 割煤產(chǎn)塵 ................................................ 107 移架產(chǎn)塵 ................................................ 109 放頂煤產(chǎn)塵 .............................................. 110 轉(zhuǎn)載點(diǎn)產(chǎn)塵 .............................................. 111 4 噴霧降塵系統(tǒng)研究 ....................................... 111 采煤機(jī)載噴霧 ............................................ 112 內(nèi)噴霧 ....................................................112 外噴霧 ....................................................114 架間噴霧 ................................................ 115 常用方法 ..................................................117 自動噴霧系統(tǒng) ..............................................117 存在問題 ..................................................118 紅外線監(jiān)控架間噴霧系統(tǒng) .................................. 119 .............................................119 紅外監(jiān)控噴霧系統(tǒng) ..........................................119 移架和放煤噴霧 ............................................120 霧幕降塵系統(tǒng) ............................................ 122 工 作面霧幕 ................................................122 近紅外線光控裝置 ..........................................123 回風(fēng)巷凈化霧幕 .......................................... 123 紅外線傳感控制 ............................................124 噴霧增壓裝置 ..............................................125 壓力、流量和噴嘴口徑 ......................................126 5 全文結(jié)論 ............................................... 127 參考文獻(xiàn) ................................................. 128 翻 譯部分 ................................................. 130 英文原文 ................................................. 131 中文譯文 ................................................. 138 致 謝 .................................................. 143 中國礦業(yè)大學(xué) 2021 屆本科生畢業(yè)設(shè)計 第 1 頁 一 般 設(shè) 計 部 分中國礦業(yè)大學(xué) 2021 屆本科生畢業(yè)設(shè)計 第 2 頁 1 礦區(qū)概述及井田地質(zhì)特征 礦區(qū)概述 礦區(qū)地理、交通位置 大屯礦區(qū)位于江蘇省沛縣境內(nèi)，東與昭陽湖、微山湖緊鄰，南距徐州72km，西望豐縣，北與山東省魚臺縣接壤，南北長 26km，東西寬約 27km，面積約 640km2。 fully mechanized working face。 on average. It is gently inclined coal seam. The industrial storage of the mine field is . The reserve of the whole mine field is . The production capacity of Yaoqiao coal mine is million tons per year and the mining service life is . The mine has two exploitation levels with for shaft deepening. Belt conveyor serves main carriage of coal. It is a mine with low content of methane. Coal dust is of explosion. Coal in mine is of spontaneous bustion tendency. The ventilation system is exhaust diagonal ventilation. The main fan is a axial one with the type of FBDCZ（ BDK62, originally)（ A） 10NO25 and the type of mating threephase asynchronous motor is JR15116. Total inhaling air volume amounts , the mine ventilation resistance is 2050Pa, and equivalent orifice covers . The means