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煤矿粉尘防治技术研究.rar

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    煤矿 粉尘 防治 技术研究
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    中国矿业大学 2012 届本科生毕业设计摘 要本设计包括三个部分:一般部分、专题部分和翻译部分。一般部分为司马煤矿 2.4 Mt/a 新井设计。司马煤矿位于长治县境内,行政区划隶属长治县苏店镇,北距长治市 14km,交通便利。井田范围近一六边形,长宽各约 6km,总面积 29.494km2。井田内主采煤层为一层,为 3#煤。煤层倾角平均 3°,平均厚度 6.8 m。井田地质条件较为简单。矿井工业储量为 26897.94 万 t,可采储量为 21832.74 万 t。矿井设计生产能力为2.4Mt/a。矿井服务年限 60.6 a。矿井涌水量不大,正常涌水量为 111m3/h,最大涌水量为201m3/h。矿井相对瓦斯涌出量为 0.67m3/t,属低瓦斯矿井。矿井煤尘具有爆炸危险性,但煤层不易自燃。矿井采用立井单水平开拓。一矿一面,采煤方法为综合机械化放顶煤开采。全矿采用胶带运输机运煤,辅助运输采用矿车。矿井通风方式前期为中央并列式。 矿井年工作日为 330 d,日净提升时间 16h,工作制度为“三八制” 。专题部分题目是煤矿粉尘防治技术研究。在煤矿开采中,掘进、回采、运输各环节中都会产生大量粉尘,粉尘不仅会危害井下职工的身体健康,还可能导致煤尘爆炸等恶性事件。目前国内外粉尘的防治技术主要在减尘、降尘、排尘、隔尘、捕尘、个体防护六个方面展开研究。翻译部分主要内容为关于煤矿火灾模型,英文题目为:Recent Developments and Practices to Control Fire in Undergound Coal Mines。关键词:立井;带区;综放;齿轨卡轨车运输;中央并列式通风中国矿业大学 2012 届本科生毕业设计ABSTRACTThe design includes three parts: the general part of the thematic part and translation part.The general part of the Sima coal mine 2.4 Mt / a new well design. Sima coal mine in Changzhi County administrative divisions under the Changzhi County Su Zhen, south of Changzhi City, 14km, and convenient transportation. The Ida scope of nearly hexagonal, length and width of about 6km, with a total area of 29.494km2. Ida within the main coal layer to layer 3 # coal. Seam dip an average of 3 °, the average thickness of 6.8 m. Ida geological conditions is relatively simple.Mine industrial reserve of 268,979,400 tons, recoverable reserves of 218,327,400 tons. Mine design production capacity of 2.4Mt / a. Mine the service life of 60.6 a. Mine water is not the normal inflow of 111m3 / h, the largest inflow of 201m3 / h. Mine relative gas emission 0.67m3 / t, is a low-gas coal mine. Mine coal dust explosion hazard, but the seam difficult to spontaneous combustion.Mine Shaft single level pioneering. A side of the mine, mining methods for integrated mechanized top coal caving. All mine by belt conveyor to transport coal, auxiliary transport using the mine car. Mine ventilation mode early as the central parallel.Mine working days for the 330 d, net upgrade time 16h, the system of work “38“ system.The thematic part of the topic coal mine dust control techniques. In coal mining, tunneling, mining, transport links will have a lot of dust, the dust will not only endanger the health of underground workers, may also cause a dust explosion and serious incidents. Dust control techniques at home and abroad, mainly in less dust, dust, dust emission, dust, catching dust, six aspects of individual protection.The main content of the translation part of the mine fire model, the English title is: the Recent Developments, and Practices to Control Fire in Undergound Coal, Mines,Keywords: Shaft; band; fully mechanized caving; cog rail car transportation; central parallel ventilation中国矿业大学 2012 届本科生毕业设计目 录一般部分1 矿区概述及井田地质特征 ..................................................................................11.1 矿区概述 ....................................................................................................................11.1.1 交通位置 ............................................................................................................11.1.2 矿区工农业生产概况 ........................................................................................11.1.3 矿井电源和水源情况 ........................................................................................11.1.4 矿区气候条件 ....................................................................................................21.1.5 矿区水文条件 ....................................................................................................31.2 井田地质特征 ............................................................................................................31.2.1 井田地层概况 ....................................................................................................31.2.2 地质构造 ............................................................................................................41.2.3 井田水文地质特征 ............................................................................................61.3 煤层特征 ....................................................................................................................91.3.1 含煤地层 ............................................................................................................91.3.2 可采煤层 ............................................................................................................91.3.3 煤质 ..................................................................................................................101.3.4 煤类划分及其依据 ..........................................................................................141.3.5 工业用途评述 ..................................................................................................151.3.6 煤尘、瓦斯和自燃 ..........................................................................................152 井田境界和储量 ..................................................................................................182.1 井田境界 ..................................................................................................................182.2 矿井工业储量 ..........................................................................................................182.2.1 井田地质勘探 ..................................................................................................182.2.2 矿井地质资源量及工业资源量计算 ..............................................................192.3 矿井可采储量 ..........................................................................................................202.3.1 安全煤柱留设原则 ..........................................................................................202.3.2 工业广场保护煤柱 ..........................................................................................202.3.3 井田边界保护煤柱 ..........................................................................................212.3.4 断层与陷落柱保护煤柱 ..................................................................................212.3.5 矿井设计储量及设计可采储量计算 ..............................................................21中国矿业大学 2012 届本科生毕业设计3 矿井工作制度、设计生产能力及服务年限 .......................................223.1 矿井工作制度 ..........................................................................................................223.2 矿井设计生产能力及服务年限 ..............................................................................223.2.1 矿井设计生产能力 ..........................................................................................223.2.2 矿井服务年限 ..................................................................................................223.2.3 井型校核 ..........................................................................................................234 井田开拓 ...............................................................................................244.1 井田开拓的基本问题 ..............................................................................................244.1.1 确定井筒形式、数目、位置及坐标 ..............................................................244.2 矿井基本巷道 ..........................................................................................................294.2.1 井筒 ..................................................................................................................294.2.2 井底车场及硐室 ..............................................................................................314.2.3 主要开拓巷道 ..................................................................................................335 准备方式—— 带区巷道布置 ...............................................................355.1 煤层的地质特征 ......................................................................................................355.1.1 带区煤层特征 ..................................................................................................355.1.2 水文地质 ..........................................................................................................355.1.3 地质构造 ..........................................................................................................355.1.4 地表情况 ..........................................................................................................355.2 带区巷道布置及生产系统 ......................................................................................355.2.1 带区位置及范围 ..............................................................................................355.2.2 带区内分带的划分 ..........................................................................................365.2.3 带区巷道布置 ..................................................................................................365.2.4 带区生产能力及采出率 ..................................................................................375.3 带区车场选型设计 ..................................................................................................385.3.1 确定车场形式 ..................................................................................................385.3.2 带区主要硐室布置 ..........................................................................................386 采煤方法 ...............................................................................................396.1 采煤工艺方式 ..........................................................................................................396.1.1 带区煤层特征及地质条件 ..............................................................................396.1.2 确定采煤工艺方式 ..........................................................................................396.1.3 回采工作面参数 ..............................................................................................40中国矿业大学 2012 届本科生毕业设计6.1.4 回采工作面破煤与装煤方式 ..........................................................................416.1.5 回采工作面运煤方式 ......................................................................................426.1.6 回采工作面支护方式 ......................................................................................436.1.7 采空区处理 ......................................................................................................456.1.8 采放比、放煤步距、放煤方式 ......................................................................456.1.9 各工艺过程注意事项 ......................................................................................476.1.10 回采工作面正规循环作业 ............................................................................476.1.11 技术经济指标 ................................................................................................486.2 回采巷道布置 ..........................................................................................................506.2.1 回采巷道布置方式 ..........................................................................................507 井下运输 ...............................................................................................547.1 概述 ..........................................................................................................................547.1.1 运输设计的原始条件与数据 .........................................................................547.1.2 运输距离与货载量 .........................................................................................547.1.3 矿井运输系统 .................................................................................................557.2 带区运输设备选择 ..................................................................................................557.2.1 设备选型原则 ..................................................................................................557.2.2 带区煤炭运输设备选型 ..................................................................................557.2.3 带区辅助运输设备选型 ..................................................................................577.3 大巷运输设备选择 ..................................................................................................587.3.1 运输大巷设备选型 ..........................................................................................587.3.2 辅助运输大巷设备选型 ..................................................................................598 矿井提升 ...............................................................................................608.1 概述 ..........................................................................................................................608.2 主副井提升 ..............................................................................................................608.2.1 主井提升 ..........................................................................................................608.2.2 副井提升 ..........................................................................................................639 矿井通风及安全技术 ...........................................................................669.1 矿井通风系统的选择 ..............................................................................................669.1.1 矿井概况 ..........................................................................................................669.1.2 矿井通风方式 ..................................................................................................669.1.3 矿井通风方法确定 ..........................................................................................689.1.4 带区及工作面通风方式 ..................................................................................68中国矿业大学 2012 届本科生毕业设计9.1.5 矿井通风容易与困难时期确定 ......................................................................709.2 带区及全矿所需风量 ..............................................................................................729.2.1 采煤工作面实际需风量 ..................................................................................729.2.2 备用工作面需风量 ..........................................................................................739.2.3 掘进工作面需风量 ..........................................................................................749.2.4 硐室需风量 ......................................................................................................759.2.5 矿井总需风量 ..................................................................................................769.2.6 风量分配 ..........................................................................................................769.3 全矿通风阻力的计算 ..............................................................................................779.3.1 矿井通风总阻力计算原则 ..............................................................................779.3.2 矿井最大最小阻力路线 ..................................................................................789.3.3 矿井通风阻力计算 ..........................................................................................789.4 通风机选型 ..............................................................................................................809.4.1 主要通风机风压 ..............................................................................................809.4.2 主要通风机的实际通过风量 ..........................................................................819.4.3 主要通风机工况点 ................................................................
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