阻燃抗静电复合材料的研究

在阻燃树脂中加入导电填料以降低其电阻率,以此为基体制备的复合材料,具有阻燃性和抗静电性。研究了各组份材料及含量对复合材料性能的影响。实验表明,合适的配方即能保持复合材料优良的力学性能,又能使其氧指数大于30,表面电阻率小于10^6Ω,满足阻燃抗静电的使用要求。     

阻燃半硬质LLDPE穿线管的研制

介绍了以ＬＬＤＰＥ树脂为主要原料，通过添加复合阻燃剂，填料及助剂制造阻燃半硬质ＬＬＤＰＥ穿线管，研究并讨论了阻燃剂和填料对产品加工成型与性能的影响以及挤出温度和设备的适应性等。所制产品具有较好的阻燃性能，物理机械性能，电性能和施工性能，生产工艺简单，操作稳定。     

抗静电阻燃橡胶板的研究

通过选择阻燃剂、抗静电剂和填料,经大量试验确定出最佳配方。以配合、混炼、返炼、压延成片、硫化等工艺流程生产出具有物理机械性能达到GB5574—85橡胶板标准;抗静电性能达到体积电阻率3.3×10~3Ω.cm;阻燃性能达到离火即灭的抗静电阻燃橡胶板。     

基于聚苯硫醚纤维的复合功能面料研究与开发

以聚苯硫醚纤维和不锈钢纤维混纺纱为基础,设计并织制了不同混纺比、不同排列方式、不同组织的织物;测试了不同规格织物的抗静电性能、防电磁辐射性能和阻燃性能等功能性指标,分析了上述性能实现的影响因素及其作用机理。研究结果表明,不锈钢纤维含量对织物抗静电性能、防辐射性能影响显著,且织物抗静电性能、防辐射性能随不锈钢含量的增加而增强,但不锈钢纤维含量对织物的阻燃性能影响不显著;混纺纱的排列方式、织物组织对织物的防电磁辐射性能影响显著,混纺织物具有良好的阻燃性能。     

阻燃抗静电复合材料的研究

在阻燃树脂中加入导电填料以降低其电阻率,以此为基体制备的复合材料,具有阻燃性和抗静电性。研究了各组份材料及含量对复合材料性能的影响。实验表明,合适的配方即能保持复合材料优良的力学性能,又能使其氧指数大于30,表面电阻率小于10     

新型抗静电阻燃热塑性塑料研制

综述了热塑性塑料的阻燃机理、常用阻燃剂及其阻燃作用,指出无毒、无污染、低价格是塑料阻燃抗静电技术的发展方向。详细介绍了新型抗静电阻燃塑料的研制过程,给出了新产品的阻燃、抗静电及机械性能的实验结果,分析了在塑料的阻燃抗静电复合处理过程中应注意的问题     

聚苯硫醚与不锈钢纤维混纺织物的工艺设计及性能研究

利用聚苯硫醚纤维的阻燃性及不锈钢纤维优异的防辐射性能、抗静电性能,选用六种不同混纺比的纱线,通过变换组织结构设计织造出十二种织物,并对其进行性能测试。结果表明,当织物中不锈钢含量增加时,织物的防辐射性能显著提高,织物的抗静电性能显著增强。聚苯硫醚纤维本身就有很好的阻燃性能,因此,加入不锈钢对织物阻燃性的影响不太显著,但对阻燃效果有益。     

新型硼酸酯表面活性剂的合成及其应用

综述了硼酸酯表面活性剂的合成研究进展及其在抗静电、阻燃、分散乳化以及防腐杀菌等领域的应用现状,重点阐述了它作为一种绿色环保的化学品在提高纺织材料性能方面的应用,并展望了硼酸酯表面活性剂的发展趋势.     

新型抗静电阻燃热塑性塑料研制

综述了热塑性塑料的阻燃机理，常用阻燃剂及其阻燃作用，指出无毒，无污染，低价格是塑料阻燃抗静电技术的发展方向。详细介绍了新型抗静电阻燃塑料的研制过程，给出了新产品的阻燃，抗静电及机械性能的实际结果。分析了在塑料的阻燃静电复合过程中应注意的问题。     

防静电半硬质PVC材料的研究

本文研究了导电炭黑、抗静电剂（ＳＨ—１０５）对半硬质ＰＶＣ材料抗静电性能的影响．实验表明：导电炭黑、抗静电剂在ＰＶＣ材料中的含量均有一个最佳范围。湿度对抗静电剂改性ＰＶＣ材料的电性能有较大的影响，而温度对导电炭黑改性ＰＶＣ材料的电性能几乎没有影响。抗静电剂在ＰＶＣ材料中具有迁移性，因此，这种材料不具有永久性防静电效果．．此外，导电炭黑与抗静电剂并用时，对ＰＶＣ材料的防静电性能能没有协同效应．     

煤矿井下瓦斯抽采PVC管道爆炸原因分析及预防

针对煤矿瓦斯抽采PVC管道静电引起的瓦斯爆炸事故,分析了PVC管道中静电产生和静电放电的原因,提出了预防PVC管道中静电灾害的技术。由于瓦斯在PVC抽放管路中流动时产生静电并在管道内壁产生静电积聚,所以在PVC管路和铁质流量计连接处,因两者导电能力不同,致使PVC管路产生静电,恰巧这时的瓦斯浓度达到爆炸范围,静电放电火花点燃瓦斯,造成瓦斯在管道内发生爆炸。为此,采用降低瓦斯在管道中的流速,抑制静电的产生;在输气管道的法兰接头、PVC管两端、阀门等连接处应用金属线跨接,防止静电放电;在气流输送系统的管道中央,顺其走向加设两端接地的金属线,以降低管内静电电位等方法,为矿井瓦斯抽采PVC管道防治静电灾害提供理论依据。     

电磁法在地下水探查中的应用

由于岩石的电阻率参数对地下岩石内孔隙流体含量及其连通性有很好的反映,所以近年来用电磁法探测地下电阻率分布的技术,被广泛应用于地下水的探查中。本文介绍了利用瞬变电磁法（TEM）和大地电磁法（MT）分别在不同深度范围探查地下水的两个实例。结果表明,依据勘探目标层深度的不同,选择适宜的电磁方法,进行地下水的探查,可以获得关于地下水赋存状况的信息。     

Coal mine roof rating(CMRR), rock mass rating(RMR) and strata control:Carborough Downs Mine,Bowen Basin,Australia

The rock mass rating(RMR) has been used across the geotechnical industry for half a century. In contrast,the coal mine roof rating(CMRR) was specifically introduced to underground coal mines two decades ago to link geological characterization with geotechnical risk mitigation. The premise of CMRR is that strength properties of mine roof rock are influenced by defects typical of coal measures stratigraphy.The CMRR has been used in longwall pillar design, roof support methods, and evaluation of extended cuts,but is rarely evaluated. Here, the RMR and CMRR are applied to a longwall coal mine. Roof rock mass classifications were undertaken at 67 locations across the mine. Both classifications showed marked spatial variability in terms of roof conditions. Normal and reverse faulting occur across the mine, and while no clear relationships exist between rock mass character and faulting, a central graben zone showed heterogeneous rock mass properties, and divergence between CMRR and RMR. Overall, the CMRR data fell within the broad envelope of results reported for extended cuts at Australian and U.S. coal mines. The corollary is that the CMRR is useful, and should not be used in isolation, but rather as a component of a strata control programme.     

提高炮采工作面块碳率的爆破技术研究

针对永城煤电集团公司陈四楼煤矿三个炮采工作面的具体情况 ,对炮采工作面提高块碳率的微差爆破技术参数进行了理论分析和现场试验 ,确定了软煤体、片帮和破碎顶板条件下合理的爆破参数 .在安全、高效的前提下 ,块碳率提高了 6%～ 1 0 % ,取得了良好的经济效益     

Technology of groundwater reservoir construction in goafs of shallow coalfields

In exploiting shallow coal resources in western China, conservation of water resources is often subjugated to considera-tions of safety and production in coal mines. In order to maintain a sustainable development in the Shenfu-Dongsheng coalfield, we propose a technology of constructing groundwater reservoirs in goals in shallow coalfields to protect fragile ecological environ-ments. Given the premise of safe production, we selected an appropriate goal as the site for constructing a groundwater reservoir and used a mine water recharge technique in combination with other related techniques for effective water conservation. Then fil-tering and purification techniques were used to purify the mine water given the physical and chemical properties of mine water and its filling material, ,thereby greatly reducing suspended matter, calcium and other harmful ions in the water. With the potential of widely application, the research result has been successfully applied in the Daliuta coal mine, to great economic and ecological effect. Therefore, this achievement provides a new way for mine water conservation in shallow coal resources in western China.     

矿井直流电法及在煤层底板突水探测中的应用

阐述了矿井直流电法及其在探测煤层底板突水中的应用．由于受全空间效应和巷道空间影响，井下稳恒电流场的分布有其特殊性．文中重点叙述了不同矿井直流电法的全空间效应和巷道影响特征，给出了拟一维层状介质模型的巷道影响校正系数公式．结合应用实例，对巷道底板电测深法、矿井电剖面法和高密度电阻率法资料的处理与解释方法分别进行了讨论．     

Features of pipe transportation of paste-like backfilling in deep mine

Based on the pipe transportation of paste-like backfilling system of a certain deep coal mine, its dynamics process was simulated and analyzed. A two-dimensional dynamic model of extraordinary deep and lone pipe was built by GAMBIT, on the basis of which the simulation was done by implicit solver of FLUENT 2ddp. The results show that hydraulic loss of pipe transportation is less than the pressure produced by gravity, which means the backfilling material can flow by itself. When the inlet velocity is 3.2 m/s, the maximum velocity of 4.10 m/s is at the elbow and the maximum velocity in the horizontal pipe is 3.91 m/s, which can both meet the stability requirement. The results of the simulation are proved to be reliable by the residual monitor plotting of related parameter, so it can be concluded that the system of pipe transportation is safe.     

煤矿计算机辅助设计与绘图系统及其实现

煤矿计算机辅助设计与绘图系统是在Auto CAD丰富的图形编辑功能基础上,根据煤矿常用图件的特点而开发的一套CAD应用软件,主要用于设计和绘制采掘工程平面图、矿建设计施工图和各种机械图等.该系统融数据管理、设计计算与绘图于一体.大大地提高了设计绘图的效率和质量.     

后生冲蚀对矿井瓦斯突（喷）出的控制作用

针对新景矿3号煤层冲蚀带较易引发瓦斯突（喷）出的特殊情况,对煤层段岩性组合特征进行了分类研究．认为在构造破坏不甚严重的情况下,后生冲蚀导致的煤层段岩性组合的明显差异是矿井瓦斯突（喷）出频发的主要控制因素之一．在详细研究已采区冲蚀带物性响应特征和钻孔、采掘工程揭露,理清冲蚀带宏观分布特点的基础上,依据三维地震勘探和钻孔资料对未采区冲蚀带进行了圈划,为矿井瓦斯突（喷）出预测及防治提供了依据．     

Influential factors and control of water inrush in a coal seam as the main aquifer

In this paper, a combination of field measurement, theoretical analysis and numerical simulation were used to study the main control factors of coal mine water inrush in a main aquifer coal seam and its control scheme. On the basis of revealing and analyzing the coal seam as the main aquifer in western coal mine of Xiao Jihan coal mine, the simulation software of PHASE-2D was applied to analyze the water inflow under different influencing factors. The results showed that water inflow increases logarithmically with the coal seam thickness, increases as a power function with the permeability coefficient of the coal seam, and increases linearly with the coal seam burial depth and the head pressure; The evaluation model for the factors of coal seam water inrush was gained by using nonlinear regression analysis with SPSS. The mine water inrush risk evaluation partition within the scope of the mining field was obtained,through the engineering application in Xiao Jihan coal mine. To ensure the safe and efficient production of the mine, we studied the coal mine water disaster prevention and control measures of a main aquifer coal seam in aspects of roadway driving and coal seam mining.