【正文】 6。 本初步設(shè)計只涉及地下開采工程及其與之配套的相關(guān)地表輔助設(shè)施，因此，本設(shè)計的產(chǎn)品方案為鐵礦石原礦。留有擴產(chǎn)到 400 萬噸的能力。 《報告》共提交鐵礦資源量 萬 t， TFe 平均品位 % 。 企業(yè)性質(zhì)為股份有限責(zé)任公司 。 行政區(qū)劃隸屬甘肅省肅北 蒙古族自治縣 。 版本號 a 版 肅北縣博倫礦業(yè)有限責(zé)任公司 七角井鐵礦床深部開采工程初步設(shè)計 1 目 錄 1．總論 ....................................................................................................................................... 1 礦區(qū)位置及企業(yè)性質(zhì) ................................................................................................... 1 設(shè)計依據(jù)及基礎(chǔ)資料 ................................................................................................... 1 設(shè)計原則與設(shè)計范圍 ................................................................................................... 2 鐵礦資源概況 ............................................................................................................... 2 主要設(shè)計方案和技術(shù)經(jīng)濟指標(biāo) ................................................................................... 2 需要說明的問題與建議 ............................................................................................... 6 2．技術(shù)經(jīng)濟 ............................................................................................................................... 7 設(shè)計依據(jù) ....................................................................................................................... 7 項目計算期 ................................................................................................................... 7 項目總投資及資金來源 ............................................................................................... 7 勞動定員 ....................................................................................................................... 7 成本估算 ....................................................................................................................... 8 財務(wù)評價 ....................................................................................................................... 9 綜合評價 ..................................................................................................................... 10 3．礦山地質(zhì) ............................................................................................................................. 26 礦區(qū)自然地理 ............................................................................................................. 26 礦區(qū)地質(zhì)勘查工作及生產(chǎn)現(xiàn)狀 ................................................................................ 26 區(qū)域地質(zhì)概況 ............................................................................................................. 27 礦區(qū)地質(zhì) ..................................................................................................................... 27 礦床地質(zhì) ..................................................................................................................... 30 礦床地質(zhì)儲量 ............................................................................................................. 31 開采技術(shù)條件 ............................................................................................................. 32 基建勘探及生產(chǎn)勘探 ................................................................................................. 33 對有關(guān)問題的說明和建議 ........................................................................................ 33 4． 水文地質(zhì) ............................................................................................................................. 34 水文地質(zhì)特征 ............................................................................................................. 34 礦坑涌水量預(yù)測 ......................................................................................................... 34 版本號 a 版 肅北縣博倫礦業(yè)有限責(zé)任公司 七角井鐵礦床深部開采工程初步設(shè)計 2 對有關(guān)問題的說明和建議 ........................................................................................ 34 5．采礦 ..................................................................................................................................... 36 主要設(shè)計原則 ............................................................................................................. 36 礦山生產(chǎn)現(xiàn)狀 ............................................................................................................ 36 設(shè)計范圍和開采儲量 ................................................................................................ 37 礦山生產(chǎn)能力、服務(wù)年限及工作制度 .................................................................... 40 礦床開拓 .................................................................................................................... 44 首采區(qū)段選擇及開采順序 ........................................................................................ 51 開采技術(shù)條件 ............................................................................................................ 51 采礦方法 .................................................................................................................... 53 礦井通風(fēng) .................................................................................................................... 67 坑內(nèi)運輸 .................................................................................................................. 92 井下炸藥庫 .............................................................................................................. 93 塌陷區(qū)地表防洪與井下排水 .................................................................................. 93 礦山基建工程 .......................................................................................................... 94 深部開采與上部生產(chǎn)的銜接與過渡 ...................................................................... 95 安全技術(shù)與工業(yè)衛(wèi)生 ............................................................................................ 106 6．礦山機械 ........................................................................................................................... 109 提升 ....................................