检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:李双利 Li Shuangli(Lu'an Chemical Group Sima Coal Industry Co.,Ltd.,Changzhi Shanxi 046100,China)
机构地区:[1]潞安化工集团司马煤业有限公司,山西长治046100
出 处:《山西化工》2025年第3期209-211,共3页Shanxi Chemical Industry
摘 要:为了解决司马煤业压煤条带煤炭开采的问题,以煤矸石为原料采用膏体充填,通过分次充填工艺,每次充填膏体1.75 m,直至膏体充填至隔离墙的顶部。充填作业期间,开采条带工作面瓦斯涌出量1.98 m^(3)/min,矿井供风量可满足开采条带工作面切眼期间及拉底期间供风量,确保了高瓦斯矿井压煤条带膏体充填开采的安全性。充填工艺提高了煤炭采出率,经济效益良好。In order to solve the problem of coal mining in Sima Coal Industry's pressure coal strip,coal gangue was used as raw material and paste filling was used.Through a step-by-step filling process,the paste was filled 1.75 meters each time until it reached the top of the isolation wall.During the filling operation,the gas emission from the mining strip working face is 1.98 m^(3)/min.The mine supply air volume can meet the supply air volume during the cutting and bottom pulling periods of the mining strip working face,ensuring the safety of high gas mine pressure coal strip paste filling mining.The filling process has improved the coal extraction rate and achieved good economic benefits.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.13