Study of intelligent gas discharging system based on switch resistance motor;
基于开关磁阻电机智能瓦斯排放系统的研究
It is effective to apply it in gas discharging in order to improve accuracy of control and communicate with other equipment the technology since S7 serial PLC has been mature.
目前的S7系列PLC技术已经非常成熟 ,将其应用在煤矿井下会提高瓦斯排放的可靠性和控制精度 ,并且便于实现与其他设备的通讯 ,根据井下瓦斯排放要求制定了相应的控制策略 ,并选用适当的硬件设施和软件编程 ,在五阳矿的应用证明 :基于S7- 2 0 0的瓦斯排放装置能非常好地适应现场工作环境 ,并且运行可靠 ,必将会有广阔的市
Through the analysis on gas discharging in Jining coalmine II, and on the basis of the gas density and the specific conditions of roadways arrangement, this aritcle, in order to achieve promptness, safety and high efficiency, integrates many effective gas discharging methods, such as full pressure ventilation, auxiliary fans and drill-holl ventilation, and so forth.
通过对济宁二号矿瓦斯排放工作的分析,根据井下的巷道具体情况及瓦斯含量,采取全风压通风系统排放、局部通风机排放、钻孔压风排放等方法,达到了快速、安全的目的。
Based on analyzing the defects from which traditional gas drainage suffers,the paper offers a new gas exhausting method without over-limitation and a closed-loop control system for gas exhausting based on frequency conversion technology.
在分析传统瓦斯排放方法所存在缺陷的基础上,提出了一种瓦斯无超限自动排放方法,设计了一种基于变频调速技术的闭环型瓦斯排放系统,介绍了其基本构成和工作原理。
The partial ventilator in the coal mine is important in mine digging, its dependability and efficiency affect directly the safety of gas drainage.
智能瓦斯排放系统是以DSP为控制核心 ,采用变频调速驱动局部通风机 ,根据瓦斯浓度自动进行风量调节 ,控制瓦斯排放系统的排放速度 ,实现煤矿安全生产自动化 ,达到既节能又安全排放瓦斯的目
Using the RFPA~(2D)-Flow to simulating the process of the gas drainage in low air permeability coal bed by slotting, it prove that slotting is an efficient technique to reduce the risk of coal and gas out bursting.
同时,数值试验对难以准确监测的煤层内瓦斯压力和瓦斯渗流场的变化规律进行了较好的模拟,为进一步理解瓦斯排放、煤与瓦斯突出机理等提供理论基础和科学依据。
New method of drawing out gas before the roadway threaded together -full air pressure drill draw method;
巷道贯通前排放瓦斯新方法——全风压钻孔排放法
In order to improve the efficiency and reliability of mine gas drainage system,according to the relation of graph theory and gas drainage system,the graph theory was used to show the gas drainage system chart.
为了提高矿井瓦斯抽放系统的效率和可靠性,根据图论理论和矿井瓦斯抽放系统的关系,采用图论的理论和方法来表示抽放系统图,计算了瓦斯抽放系统各管路阻力,简化了矿井瓦斯抽放系统并建立了抽放系统网络图,解决了抽放系统局部阻力过大等问题。
Study on Width of Gas Drainage Zone in Coal Roadway Based on Gas Emission
基于瓦斯涌出量的煤巷瓦斯排放带宽度研究
Analysis of Large Diameter Gas Drainage Well Casing Collapsing Strength Computation
大口径瓦斯排放井套管抗挤强度计算分析
Testing study of methane drainage by bore and hydraulic-cutting seam from low permeability coal seam
低渗透煤层钻孔与水力割缝瓦斯排放的实验研究
Application of Gas Drainage Pump to Tunnel Gas Emission
瓦斯抽放泵在巷道排放瓦斯中的应用
firedamp pressure-chamber method
瓦斯压力调节室排放法
Research on the Method of Draining the Gas on Roof Gallery of Full-Mechanized Caving Mining Face
综放工作面尾巷排放瓦斯方式的探讨
Research on Gas Intelligent Drainage for Local Fan Based on Fuzzy Control;
基于模糊控制的局部通风机瓦斯智能排放研究
Analysis on Influencing Factors of Gas Emission with Boreholes to Determine Drainage Radius
钻孔瓦斯涌出量确定排放半径影响因素分析
tandem gas engine
串排复缸瓦斯发动机
Application Research of Data Fusion Theory in Coal Gas Intelligent Drainage System
数据融合理论在瓦斯智能排放系统中的应用研究
You put the kettle on the gas stove, and then light the gas.
你先把水壶放在瓦斯炉上，再点瓦斯。
Gas comprehensive way technology for fully mechanized top high gassy coal caving mining face
高瓦斯综放工作面瓦斯综合治理技术
Prediction on Gas Emission and Gas Drainage base on Elevation
根据标高预测瓦斯涌出量和瓦斯抽放
Application of Technology of High Gas Cannon Picking Roof Perforate Gas Administer
高瓦斯炮放面顶板钻孔法瓦斯治理技术应用
Study on the Disposed Methane Drainage Technology of Fully Mechanized Caving Face
高瓦斯综放工作面卸压瓦斯抽采技术研究
Research on Accumulation Gas Control Measure in Drilling Field Using Gas Drainage at High Gas Mine
高瓦斯矿井抽放钻场瓦斯积聚治理方法研究
Design for drawing out gas with high position boring at coal face
轻放工作面抽放瓦斯高位钻孔的设计
Put the slates on the roof so that they lap over.
将石板瓦鳞比地排放在屋顶上。