?!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> “精耕细作”提高煤炭回采率-煤炭资讯|?/TITLE><LINK href="/css/wh.css" type=text/css rel=stylesheet> <META http-equiv=Content-Type content="text/html; charset=gb2312"> <META content=煤炭|?name=Author> <META content="Copyright 2004-2005 煤炭资讯|所? name=Copyright> <META content="煤矿,煤矿|?煤炭|?清R?光电(sh)型全自动矿用清R?二手讑֤,煤炭供求,煤矿机电(sh)讑֤,煤矿新闻,煤矿人才,煤业技?校友?煤h(hun)旬报,技术论?襉K煤炭|?国际能源|?全球能源|?世界能源|?国家能源|?国际煤炭|?国际?sh)力|?国际x(chng)a(b)|?国际天然气网,国际新能源网,国际能源投融资网,能源U技,能源人物,能源要闻,能源安全,能源情报,能源危机,能源?jng)?能源企业,能源黄页,能源l计,能源专家,能源|聚世界能源资讯,服务全球能源企业" name=keywords> <META content="煤炭资讯|? name=description> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head> <body> <h1><a href="http://ducatiukracing.com/">免费人成年激情视频在线观看,国产精品,精品一级影院在线播放,真实强奷在线中文</a></h1> <div 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align=middle colSpan=2> <H2>“精耕细作”提高煤炭回采率</H2></TD></TR> <TR> <TD align=middle colSpan=2> <H3></H3></TD></TR> <TR> <TD align=right width=346><A href="http://ducatiukracing.com/" target=_blank>煤炭资讯|?/A></TD> <TD width=382>2007-12-3 22:20:32    <A href="http://ducatiukracing.com/MroeNews.aspx">要闻</A></TD></TR> <TR> <TD colSpan=2 class="newsContent"> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" > <HTML> <HEAD> <title>“精耕细作”提高煤炭回采率  本网讯:(x)沛_气R能源公司云煤一矿在提高煤炭回采率上下工夫。2Q0Q年以来Q该矿克服采区地质条件复杂等因素Q工作面回采率?6.2%Q采区回采率?0.1%Q矿井回采率达6Q%Q均已超q相x(chng)准。多回收煤炭Q万多吨Q增?000多万元?br />
 煤炭资源是不可再生的。云煤一矿技术科在设计工作面Ӟ把是否有利于提高资源回采率作Z要标准,本着生安全、技术可行、经合理和最大限度回收煤炭资源的原则Q尽可能采用沿空送؜、沿I留L(fng)方式布置巷道Q减隔ȝ柱,避免边角煤柱的出玎ͼ同时加强对煤柱及(qing)边角煤的回收利用?br />
 为提高资源回采率Q降低生产成本,云煤一矿制定了(jin)《煤炭回收制度和监督考核办法》,规定每月由技术、地质、计划等部门Ҏ(gu)每个采区的已知资料,q行一ơ回采储量预,预测每个工作面的采高。同Ӟ该矿在原煤回采过E中U极推行新技术、新工艺Q用单体液压支柱代替摩擦支柱Q原煤采高提高Q?Q-Q?Q米Q对煤层较厚的工作面采用Q?Q米单体液压支柱代替Q?Q米液压支柱Q以提高采高Q对支架不到底的Q采取控底煤办法多回收底煤?br />
 

                         
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