嘎顺乌散煤矿通风设计

《嘎顺乌散煤矿通风设计》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、目录第一章矿井概况·········································1第二章采区通风·········································1采区概况·········································1回采工作面通风系统·······························3掘进通风·········································4局部通风系统的设计原则····················

2、·······4局部通风方法······································5第三章-28-矿井通风系统······································5矿井通风系统的选择································5矿井通风方式的选择································8矿井需风量的计算··································9风量计算的标准和原则······················

3、········9矿井风量计算·····································10矿井总风量计算···································15矿井风量分配·····················-28-················16风量分配后的风速校核·····························17矿井通风阻力的计算·······························19图纸和编制数据···························

4、········19负压计算········································20矿井等积孔······································21通风设施········································21通风设施防止漏风和降低风阻的措施················23附图：通风系统图-28-通风网络图风机性能曲线图附表：通风容易时期负压计算表通风困难时期负压计算表通风设计审核表第一章矿井概况-28-新疆屯南煤业有限公司嘎顺乌散煤矿

5、位于新疆维吾尔族自治区塔城市和布克赛尔蒙古族自治县和什托洛盖镇。矿区在托洛盖镇东30km，217国道从托洛盖镇穿过，从托洛盖镇到矿区有一条直通公路，交通便利。矿井地质构造简单。新疆屯南煤业有限公司嘎顺乌散煤矿现核定生产能力为60万吨/年，采用斜井开拓方式，井田内可采煤层4层，分别是B9、B4、B3、B1，矿井现开采B9煤层，开采水平标高+915m，井下布置1个采煤工作面1个掘进工作面，采煤工作面为1902综采工作面，掘进工作面为1901综掘工作面。矿井绝对瓦斯涌出量为0.128m3/min，相对瓦斯涌出量为0.13m3/t

6、；绝对二氧化碳涌出量0.128m3/min，相对二氧化碳涌出量0.13m3/min，矿井瓦斯等级为低瓦斯矿井。第二章采区通风采区概况一、工作面位置及范围1902综采工作面为B9煤层首采工作面，位于B9煤层+915西翼，相邻无回采工作面，1902综采工作面可采走向长度1900m，倾斜长度150m，可采储量102万吨。二、工作面地面位置及回采对地面的影响地面相对位置位于和什托洛盖镇以东直线距离30km处，地理坐标:东经86°10′19″～86°14′03″，北纬46°31′35″～46°33′29″，地表高程（+997）—（+

7、1008），井下对应标高为(957)—(915)，最大采深100m。-28-1902工作面采用走向长壁后退式综采采煤法，地面无村庄分布，回采对地面无影响。三、煤层赋存特征1902综采工作面所采煤层为B9煤，为黑色长焰煤，上半部为半亮型块状硬质煤，煤岩成分以亮煤为主，煤质较好；下半部为半暗型块状硬质煤，煤岩成分以暗煤为主，个别地段煤层中含有1层0.35-1.23m的炭质泥岩夹矸，结构较简单，对回采基本无影响。煤岩层倾向从中、东部的南倾170°转为西部南偏东倾140°，倾角总的变化趋势在走向上是西缓东陡，沿倾向是地表稍缓，深部

8、略陡，煤岩层倾角呈有规律的变化，由东向西变化范围：21°—18°—17°—15°—12°—10°—9°，平均倾角14°。四、地质构造本工作面内地质条件简单，大地构造单元属和什托洛盖中新生代断拗型盆地中段北缘的和什托洛盖凹陷东段，和什托洛盖凹陷是由一系列背向斜组成的复式向斜，采区就位于凹陷东部抬升区，多数