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solid; BORDER-TOP: #b0cfee 1px solid; FLOAT: left; BORDER-LEFT: #b0cfee 1px solid; WIDTH: 955px; BORDER-BOTTOM: #b0cfee 1px solid"> <TABLE cellSpacing=0 cellPadding=10 width=955 border=0> <TBODY> <TR> <TD align=middle colSpan=2> <H3></H3></TD></TR> <TR> <TD 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://www.ynryjkb.cn/" target=_blank>煤炭资讯|?/A></TD> <TD width=382>2007-12-3 22:20:32    <A href="http://www.ynryjkb.cn/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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