矿井通风毕业论文--240万吨年新矿井设计

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1、 I 摘 要 本设计矿井为鹤岗矿业集团峻德煤矿 240 万吨/年新矿井设计， 共 有 2 层可采煤层 17#、21#。煤层工业牌号为 1/3 焦煤，设计井田的可 采储量 20700Mt，服务年限为 61a。设计采用以双立井为主的联合开拓 方式，划分两个水平，六个采区。达产时采区为一采区和二采区，各 布置一个工作面，联合布置， 17#、21#层单独开采。采煤方法为走向 长壁下行垮落采煤法，采煤工艺为综合机械化放顶煤工艺，顶板处理 方法为全部垮落法。 矿井通风方式为分区式，通风方法为抽出式，采区通风系统为轨道 上山和运输上山进风，回风上山回风，采煤工作面采用“U”型上行式 通风，掘进工作面采用压入

2、式通风，矿井容易时期设计需风量为 139 m3/s，困难时期设计需风量为 146m3/s。进而选出矿井主要通风机型号 为 BD NO-22，电动机型号为 YB355M2-8，且对矿井所需通风构筑物进 行布置。 关键词：关键词：通风设计 矿井通风系统 通风阻力 II Abstract The design of mine for Hegang Junde Coal Mining Group 2,400,000 tons / year of new mine design, a total of 2 coal seam layer 17 #, 21 #. Industrial grade coal

3、 is 1 / 3 coking coal, the design of mine recoverable reserves of 20700Mt, length of service for the 61a double shaft design combined to open up the way, divided into two levels, six mining area. Mining area at the middle of a mining area and the second mining area, the layout of a face, a joint arr

4、angement, 17 #, 21 # layers separate mining. Mining methods to falling down a long wall coal mining law, mining technology for integrated mechanized top coal caving technology approach for the entire roof falling Act. Mine ventilation for partition type, the method of taking the type of ventilation, ventilation systems for the mining area and transport up the mountain track up the mountain into the wind, to wind up the mountain back to the wind, coal face using “U“-type upstream ventilation, th