【正文】 ............................................................ 24 抽采方法選擇依據(jù) .............................................................................. 24 抽放方法選擇 ...................................................................................... 24 掘進(jìn)工作面抽放方法 .................................................................................... 25 順層長(zhǎng)鉆孔預(yù)抽煤層條帶瓦斯 .......................................................... 25 順層長(zhǎng)鉆孔掩護(hù)煤巷掘進(jìn)區(qū)域防突措施 .......................................... 25 回采工作面抽放方法 .................................................................................... 29 采空區(qū)抽放方法 ............................................................................................ 31 采空區(qū)高位抽放 .................................................................................. 31 采面淺孔抽放 ...................................................................................... 31 采空區(qū)埋管抽放 .................................................................................. 32 抽放鉆孔的密封 ............................................................................................ 33 封孔深度 .............................................................................................. 33 封孔材料 .............................................................................................. 33 封孔工藝 .............................................................................................. 33 4 抽放管路系統(tǒng)選型設(shè)計(jì) .......................................................................................... 36 抽放管路系統(tǒng)路線 ........................................................................................ 36 抽采規(guī)模預(yù)計(jì) ................................................................................................ 36 抽放管路選型計(jì)算 ........................................................................................ 36 管網(wǎng)阻力計(jì)算 ................................................................................................ 37 管路連接與敷設(shè)要求 .................................................................................... 39 鉆孔與抽放管路連接 .................................................................................... 40 抽放管路附屬裝置 ........................................................................................ 41 5 地面抽放泵選型及泵站布置 .................................................................................. 44 抽放泵的選型 ................................................................................................ 44 抽放泵的類型確定 .............................................................................. 44 永龍?zhí)煊恚?登封）煤業(yè)有限公司瓦斯抽放工程初步設(shè)計(jì)說明書 第 3 頁 抽放泵的容量計(jì)算 .............................................................................. 44 抽放泵選型 .......................................................................................... 46 瓦斯抽放泵站的布置 .................................................................................... 46 瓦斯抽放泵站供電 ........................................................................................ 47 瓦斯抽放泵給排水 ........................................................................................ 47 防雷設(shè)施 ........................................................................................................ 47 瓦斯抽放泵站照明 ........................................................................................ 48 瓦斯抽放泵站通訊 ........................................................................................ 48 抽放系統(tǒng)實(shí)時(shí)監(jiān)測(cè) ........................................................................................ 48 泵 房采暖與通風(fēng) ............................................................................................ 48 6 瓦斯抽放系統(tǒng)的安裝 .............................................................................................. 49 瓦斯抽放系統(tǒng)安裝的基本要求 .................................................................... 49 瓦斯抽放泵的安裝 ........................................................................................ 49 瓦斯抽放和排放管路及附屬設(shè)施安裝 ........................................................ 49 7 環(huán)境保護(hù) .................................................................................................................. 50 抽放瓦斯工程對(duì)環(huán)境的影響 ........................................................................ 50 污染防治措施 ................................................................................................ 50 抽放站綠化 .................................................................................................... 50 8 瓦斯抽放組織管理及主要安全技術(shù)措施 .............................................................. 51 組織管理 ........................................................................................................ 51 瓦斯抽放組織機(jī)構(gòu)管理 ................................................................................ 51 瓦斯抽放鉆場(chǎng)管理 ........................................................................................ 51 采空 區(qū)抽放管道的拆裝 ................................................................................ 53 瓦斯抽放管路管理 ........................................................................................ 53 主要安全技術(shù)措施 ........................................................................................ 54 鉆機(jī)操作規(guī)程 ................................................................................................ 54 瓦斯抽放泵司機(jī)作業(yè)操作規(guī)程 .................................................................... 55 瓦斯抽放報(bào)表管理 ........................................................................................ 57 9 瓦斯抽放工程技術(shù)經(jīng)濟(jì)指標(biāo) .................................................................................. 59 永龍?zhí)煊恚?登封）煤業(yè)有限公司瓦斯抽放工程初步設(shè)計(jì)說明書 第 4 頁 勞動(dòng)定員 ........................................................................................................ 59 投資概算 ........................................................................................................ 59 永龍?zhí)煊恚?登封）煤業(yè)有限公司瓦斯抽放工程初步設(shè)計(jì)說明書 第 1 頁