煤矿安全开采虚拟仿真实验教学中心建设与实践

在煤矿安全开采领域,面临着实验教学手段缺乏创新、优质教学与实验资源匮乏等问题。为了解决传统煤矿开采实践教学与人才培养之间的一些突出矛盾,利用虚拟仿真实验技术,结合面向工程实践培养应用型人才的现实需要,论述煤矿安全开采虚拟仿真实验教学中心建设理念,构建煤矿安全开采“阶段化、层次化、模块化”的实践教学体系,开发“高度仿真、虚实结合、开放共享”的虚拟仿真实验系统与虚拟仿真实验教学资源,以改善煤矿安全开采实验教学环境,提升学生创新意识、实践能力与自主学习兴趣。

基于ZigBee的煤矿安全开采信息采集系统设计

针对煤矿安全开采对信息采集系统的需求,设计了基于Zig Bee技术的无线信息采集系统,介绍了系统的组成和工作原理并设计了相应的节点。设计的协调器节点、路由节点以及终端节点可以实现井下环境信息的采集和传输功能。该系统具有集成度高、功耗低、性能可靠、敷设灵活等特点。

面向煤矿安全生产的物联网应用模式及关键技术分析

如何有效将物联网应用模式和技术融合在煤矿开采中,成为当前很多煤矿企业需要考虑的问题。分别阐述面向煤矿安全生产的物联网应用模式和关键技术,然后结合煤矿开采的实际情况,对物联网系统的具体应用进行分析,以期在物联网系统的助力下,提高煤矿企业的生产安全性,实现可持续发展。

为煤矿安全开采撑起一把防治水“保护伞”--记矿山水害防治专家黄选明研究员

水害是煤矿开采五大灾害之一,水患爆发造成的人员伤亡与社会影响不容小觑。作为世界上矿井水文地质条件最为复杂的国家,我国煤矿水害类型也最为多样,无论是“治水”抑或是“保水”,都面临艰巨挑战。幸运的是有这样一群人,矢志不移地坚守在煤矿水患防治工作一线,用勤奋与汗水攻克行业众多技术难关,用心血与智慧维护着煤矿从业者的生命安全。

浅析煤矿开采安全管理

煤矿安全管理工作即煤矿生产过程中关于安全工作的一系列组织、技术、措施与管理工作，由于各种因素的影响，我国煤矿开采安全现状不理想，主要表现在开采方式落后、员工素质参差不齐、生产力水平较弱、管理体制不完善、非法生产情况严重、资源浪费与环境污染问题严重等等，这着因素都严重制约看安全生产工作的开展，主要分析煤矿安全开采的现状以及应对措施，，

石莲煤矿水患因素分析与研究

为进一步查清石莲煤矿矿区水患情况,确保矿山安全开采,通过对水文地质资料的搜集、矿山老采空区的清查和历史老窑的调查,本文在资料整理、分析研究的基础上,依据煤炭行业的相关规定,对石莲煤矿矿井水患进行分析论证,进一步查清矿山的水患情况,并提出相应的防范措施,为矿山防治水工作提供可靠资料,为探放水设计提供科学依据。

关于对高瓦斯矿井瓦斯涌出量的简要分析

分析了我国煤矿安全开采的现状,特别是在高瓦斯矿井在开采安全问题方面进行详细探究:通过对高瓦斯矿井在开采过程中的瓦斯涌出量进行分析,找出瓦斯涌出量和开采过程中的影响因子。并结合它们的监测数据,预测瓦斯涌出量,以使煤矿在遇到瓦斯超标时提前做出应急措施,降低生产死亡率。

高压电脉冲煤层增透实验系统

针对煤矿安全开采中瓦斯抽采率低、抽采时间长的问题,设计一套高压电脉冲煤层增透实验系统,系统由控制平台、充电回路、放电回路三部分组成.实验时对煤体表面进行多次冲击后,可在煤体内部形成空间网络状的裂隙结构并延伸到煤体表面,最终从煤体中心沿裂缝完全致裂。

Study on Critical,Modern Technology for Mining in Gassy Deep Mines

To achieve safe and highly efficient mining in the gassy, deep mines of the Huainan collieries simultaneous coal and gas extraction, and the corresponding ventilation methods were developed. This includes a set of mining procedures and principles which help insure safe and efficient production. Furthermore, green mining, meaning the comprehensive use of emitted gas, proper treatment of the environment and appropriate mine temperature control, is now standard. The concepts of modem mining and the principles of pressure relief are described. Coal-gas simultaneous ex- traction and multi-pressure relief techniques were developed which require a combination of surface and underground gas extraction. The application of Y-ventilation systems, of roadways retained along goafs, of stress control techniques for highly fragile mine roofs and of powerful, automatic and reliable mining equipment contributes to safe operation of modem deep mines. Operating parameters for these techniques are described and the results of their use discussed.

Management present situation and countermeasures of coal mines safety in production

Analyzed of the present situation of Chinese coal mines safety in production and the reasons for coal mining accident,and realized the coal mines safety in production, which should increase the legal safeguards of coal mine safety in production,and safety input,established the comprehensive coal mine safety evaluation system,comprehen- sively enhance quality of coal mine workers,established and improved early warning me- chanism of safety production of coal mine.

Safety appraisement on building natural gas pipeline over coal mining subsidence area

The target of the text is to scientifically appraise dynamic development of surface deformation in subsidence area and its influence on groundwork stability of natural pipe and then adopt some technological measures to ensure safe circulation of natural pipeline. Analysed the influence on natural pipeline from coal mining subsidence in the way of pipeline grade variation, vertical curve variation, transverse deformation, horizontal pull and compression deformation and pipe stress variation etc., and described detailed surface subsidence product and its used time among initial phase, active phase and decline phase in the course of surface movement deformation time. In the context of considering surface subsidence that doesn＇t reach basic latter end and residual subsidence quantity, the text confirmed the calculation method of residual deformation in surface subsidence area, and gave the technological measures about building natural gas pipeline in subsidence area finally.

Patterns and security technologies for co-extraction of coal and gas in deep mines without entry pillars

Retaining gob-side entryways and the stability of gas drainage boreholes are two essential techniques in the co-extraction of coal and gas without entry pillars （CECGWEP）. However, retained entryways located in deep coal mines are hard to maintain, especially for constructing boreholes in confined spaces, owing to major deformations. Consequently, it is difficult to drill boreholes and maintain their stability, which therefore cannot guarantee the effectiveness of gas drainage. This paper presents three measures for conducting CECGWEP in deep mines on the basis of effective space in retained entryways for gas drainage, They are combinations of retaining roadways and face-lagging inclined boreholes, retaining roadways and face-advancing inclined boreholes, and retaining roadways and high return airway inclined boreholes. Several essential techniques are suggested to improve the maintenance of retained entryways and the stabilization of boreholes. For the particular cases considered in this study, two field trials have verified the latter two measures from the results obtained from the faces 1111（1） and 11112（1） in the Zhuji Mine. The results indicate that these models can effectively solve the problems in deep mines. The maximum gas drainage flow for a single hole can reach 8.1 m^3/min and the effective drainage distance can be extended up to 150 m or more.

The impacts of MINER Act of 2006 on the U.S.mining industry

Several high-profile coal mining accidents since 2006 that killed 27 coal miners have prompted the passing of the Mine Improvement and New Emergency Response Act of 2006 (MINER Act) which was signed into law in 2006,and the proposed S-MINER Act of 2007,which passed the House of Representative in early 2008.The four coal mining accidents are described that are believed to be responsible for both the MINER Act and proposed S-MINER Act,and their potential impacts on the U.S.mining industry.

Market-oriented management method of coalmine accident hidden dangers

By analyzing the problems which exist currently in the accident hidden dangers management of the coal mine, this paper proposed a new kind of management method--＂simulating the market＂, in which an operation pattern of simulating the market to transact hidden troubles was constructed. This method introduces ＂Market Mechanism＂ into safe management, and adopts measurable value to describe the hidden dangers such as＂ human behavior, technique, environment, equipments etc.＂. It regards the hidden dangers as ＂the goods produced by labor＂ which are found out by the safety managers and the security inspectors, then sells as ＂commodity＂. By the process of disposing, counterchecking, re-selling, and redisposing. It forms a set of market-oriented closed-form management pattern of coalmine accident hidden dangers. This kind of management method changes the past traditional methods in which the wageworkers treat safety management passively, but to encourage and restrict them to participate in the check-up and improvement of the hidden dangers.

Application of coal mine dynamic safety management and occupational health and safety management system

A method system was put forward based on the occupational health and safety management system to develop the dynamic safety management of coal mine. It aimed at the problems in the mining safety management and was put in practice in Lingxin coal mine of Ningxia Coal Industry Group Co., Ltd.. And good effect was obtained in safety work. It developed the mining dynamic safety management based on the building of occupational health and safety management system of mining enterprise and its main contents are as follows： timely identification and dynamic control of accident risk, persistent improvement of safety management performance according to the ＂PDCA＂ circle.

The safety mining theory studying for coal resource in China

The coal resource has an important role in the energy development strategy in China. Because the coal resources are a kind of non-renewable resources, a Kind of ex-hausting resource, which is limited in quantity, and the exploitation of the recourses are not economized now, so how to realize the sustainable development for coal resource in China is very important. In this paper, two parts were researched to optimize the coal mining. In order to optimize the mining order of different mining areas, the fuzzy logic evaluation was used to build the evaluation system. The economic control theory model was built to realize the proper period to explore the coal recourses for the same mining areas.

电液控液压支架推移千斤顶加工工艺研究

随着国家对煤矿安全开采技术要求越来越高,近两年电液控液压支架在煤矿智能化装备得到广泛推广应用,电液控液压支架的使用提升了煤矿采煤工艺的自动化水平,为煤矿安全生产奠定了基础。电液控液压支架是煤矿智能化装备的重要组成部分,资金投入大,使用周期长。电液控液压支架推移千斤顶是移架和推溜的动力源,推移千斤顶或传感器出现故障电液控液压支架将失去远程电液控制功能,以至于不能移架推溜。推移千斤顶结构如图1所示。