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- water infusion in coal seam 煤层注水
- Test and Research on Coal Seam Shallow Hole Water Infusion in Fullymechanized Coal Winning Technology Working Face 综采工作面煤壁浅孔注水降尘的试验研究
- The studies also show that magnetized water has a good application prospect in coal seam infusion. 磁化水在煤层注水方面具有良好的应用前景。
- Prewetting of coal seams by water infusion is an essential measure for dust control at working faces. 煤层注水预湿是采煤工作面防尘的治本措施,添加湿润剂是改善煤层注水效果的重要途径。
- The gauge can simultaneously measure quantity and pressure of water infused into coal seam. 该水表能同时测定注入煤层中的水量和注水压力。
- Prewetting of coal seams by water infusion is an essential measure for dust control at working faces.Adding of wetting agent is an important approach for improving water infusion. 煤层注水预湿是采煤工作面防尘的治本措施,添加湿润剂是改善煤层注水效果的重要途径。
- Little faults in coal seam are important for coal and gas outburst prevention and control,and water outburst prevention and control. 煤层小断层对矿井煤与瓦斯突出及矿井突水防治具有重要的实际意义。
- It used draining while mining and light &middle pressure water injection in coal seam, those completely eliminated the danger of coal and gas outburst. 在生产过程中,采用边采边抽和浅孔中压注水措施,完全消除了工作面的突出危险性。
- Study and Application on Coal Seam Water Infusion %26 Dust Detection Techniques 煤层注水及粉尘检测技术的研究与应用
- Experimental Study of Water Infusion Technology for Special Coal Seam 特殊煤层的注水工艺技术试验研究
- The way and principle of Gaussian curvature method for forecasting natural fracture zones in coal seam are discussed. 摘要论述了高斯曲率法预测煤层天然裂隙发育区的基本原理和方法。
- Through 3 case studies,the paper introduced the PROTEM 67D transient electromagnetic system geological results when used in coal seam floor water abu ndant zone,water conducted zone and abandoned mine water prospecting. 通过矿区勘探的三个典型实例,介绍了PROTEM67D瞬变电磁系统在探测煤层底板富水区、导水通道老窑积水等方面的应用及取得的地质效果。
- Outburst prevention technique of excavating in coal seam will be directly concerned colliery safety production and excavates taking over. 摘要突出煤层煤巷掘进防突直接关系到煤矿的安全生产和采掘接替。
- BP neural network method application in feasibility evaluation of water infusion for coal seam 煤层注水难易程度的BP神经网络评价法
- Study on technique of coal seam infusion in soft coal at Xiandewang Coal Mine 显德汪矿软煤层综采工作面煤层注水工艺研究
- With the tectonic geological methods the development properties,the forming mechanics of faults in Coal Seam 11-2 in Payi Coal Mine are analyzed. 采用构造地质学的方法,对潘一煤矿井田内11-2煤层中断层的特征、发育规律及形成机制进行了分析。
- Application Study of Hydraulic Rarefaction Coal Seam Shallow Hole Water Infusion Device 水力疏松煤层浅孔注水器应用研究
- Application of Dustproof Technology of Coal Seam Water Infusion Adding Permeable Bar 添加渗透棒煤层注水防尘技术的应用
- In view of the problems occurring in trapezoidal support used in coal seam gateway, a novel small-curvature arch support for mining engineering is presented. 针对煤层顺槽梯形支架存在的问题,提出一种新型结构的小曲率拱型支架。
- Tea leaves are infused in hot water to make tea. 茶叶浸入热水,茶就沏。