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- outburst coal layer 突出煤层
- In the stone coal layer and the overlying black shale, there is a pyrite layer. 在石煤层或其上部的碳质页岩中含黄铁矿层。
- Authors introduce a fully mechanized mining technology with great mining length, height and dip angle adopted by No.12 colliery of Pingdingshan Coal Group under the condition of outburst coal seam. 本文介绍了平煤集团十二矿在高突条件下,进行的大采长、大采高、大倾角综采开采技术,采取的措施和取得的经验,并提出了有待解决的技术问题。
- The oil shales are associated with and lie on a coal layer of turfy-swampy facies. 煤层顶部发育的巨厚湖相劣质油页岩;分布广;层位稳定;含油率<3.;5%25。
- The widely distributed coal layer adsorbed gas is also an important potential natural gas resource. 分布广泛的煤层吸附气也是重要的潜在天然气资源。
- Wennan colliery of Xinwen Coal Mining Group is an old coalmine and is mining deep coal layer. 汶南煤矿是新汶矿业集团进入深部开采的老矿井。
- The forming mechanism of the black fume from coal layer type combustion and the measures for elimination the fume kilns are discussed. 论述了煤炭层式燃烧的黑烟产生机理和机烧炉的消烟措施;
- COF direct reduction process,in which carbon-bearing pellet bed covered by a coal layer is open-flame heated, has been investigated. 对盖碳保护下敞焰加热含碳球团堆积料层的直接还原方法(COF法)进行了研究。
- The great undulating of soleplate of the third coal layer in Wangping well field badly influence exploiting disposal and excavating coal laneway. 针对王坪井田3号煤层底板起伏变化大,严重影响开拓及采煤巷道布置的现状,利用趋势面分析的方法,分析了井田内的构造展布规律。
- outburst coal seam with low gas permeability 低透气性突出煤层
- low permeability outburst coal seam 低透气性突出煤层
- The reflection wave of coal layer has been filtered,the diffracted wave scattered from the break point is enhanced,and the interpretation of samll KCC is improved. 在深入分析松辽盆地北部各断陷天然气成藏条件的基础上 ,指出各断陷在烃源岩发育、有机质演化程度和盖层条件上存在明显的差异。
- Water inrush from the bottom coal layer in mining work faced now is rather serious in Northern China coalfield, which constraints seriously the normal economical benefits. 在我国华北煤矿区,回采工作面煤层底板突水问题相当严重,困扰着煤矿经济效益的正常发挥。
- In this paper introduce Gu Jiao Coal mine 4# coal layer pressure obseve and analyze, master work face pressure rule. provide according to for reasonable mining and science manage. 介绍古交矿区4%23煤层综采首采面,通过矿压观测研究,初步掌握了该面矿压显现规律。为合理开采4%23煤层、科学管理顶板及支架选型提供了科学依据。
- That outburst was illustrative of her bad temper. 这一通发作足以说明她脾气坏。
- Construction Technique of Deep-drill of Outburst Coal Seam 突出煤层深钻孔施工技术
- What lay behind this strange outburst? 这莫名其妙的发作究竟是为什麽?
- Practice of Exposing Outburst Coal Seams in Crosscut in Luling Mine 芦岭煤矿突出煤层石门揭煤的实践
- The application of the gas drainage technology in Donghai coal mine is introduced, including gas drainage in close coal layer, gas drainage in goaf, gas drainage from coal, and local gas drainage. 介绍瓦斯抽放在东海矿的应用,抽放方式为邻近层抽放、空区抽放、本煤层抽放及局部抽放。
- Practice of uncovering coal in high-gas and gas outburst coal mine 高瓦斯有突出危险性矿井的揭煤实践