鹤壁三矿通风系统阻力测定与分析
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摘要
为了解矿井通风系统中通风阻力分布状况,更好地通风降阻,并为通风设计、网络解算和优化改造提供可靠的基础信息,就必须对井下风阻力进行核定计算。本文选取不同测点测定参数,从测定精度评价、通风阻力分布状况、矿井等积孔和风阻4个方面对测定结果进行计算分析。结果表明:鹤壁三矿的通风系统布置和阻力分布较合理,通风难易程度属于容易等级。此外,矿井北翼部分巷道变形严重、断面较小、阻力较大,建议及时维护巷道,扩大巷道局部面积,以降低系统通风阻力。
In order to understand the distribution of ventilation resistance in mine ventilation system, to better reduce ventilation resistance, and to provide reliable basic information for ventilation design, network calculation and optimization transformation, it is necessary to verify the calculation of underground air resistance. In this paper, the determination parameters of different measuring points were selected, and the results were calculated and analyzed from four aspects: accuracy evaluation, distribution of ventilation resistance, mine holes and air resistance. The results show that the layout of ventilation system and the distribution of resistance in Hebi No. 3 Coal Mine are reasonable, and the degree of ventilation difficulty is easy. In addition, some roadways in the north wing of the mine have serious deformation, small cross section and large resistance. It is suggested that the roadway should be maintained in time and the area of local roadways should be enlarged to reduce the ventilation resistance of the system.
In order to understand the distribution of ventilation resistance in mine ventilation system, to better reduce ventilation resistance, and to provide reliable basic information for ventilation design, network calculation and optimization transformation, it is necessary to verify the calculation of underground air resistance. In this paper, the determination parameters of different measuring points were selected, and the results were calculated and analyzed from four aspects: accuracy evaluation, distribution of ventilation resistance, mine holes and air resistance. The results show that the layout of ventilation system and the distribution of resistance in Hebi No. 3 Coal Mine are reasonable, and the degree of ventilation difficulty is easy. In addition, some roadways in the north wing of the mine have serious deformation, small cross section and large resistance. It is suggested that the roadway should be maintained in time and the area of local roadways should be enlarged to reduce the ventilation resistance of the system.
引文
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[3]凌涛.煤炭资源综合利用技术方法研究[D].太原:山西财经大学,2011.
[4]Yu-Guo W U,Jian-Ming W U,Wang J F,et al. The law of gas distribution in goaf of fully mechanized top-coal caving working face with“double-U”ventilation system[J]. Journal of China Coal Society,2011(10):1704-1708.
[5]吴率领.矿山机电设备维护管理探讨[J].科技创新与应用,2012(17):109.
[6]李建立.矿山机电设备维护管理探讨[J].内蒙古煤炭经济,2012(10):117-119.
[7]谢如谦.福建省省属煤矿通风系统阻力测定及降阻分析[J].能源与环境,2010(1):36-38.
[8]李培煊.一种测试矿井通风系统可调性的实验方法[J].技术与创新管理,2015(4):406-408.
[9]黄显东,刘志梅,陈世龙,等.矿井通风阻力测定方法及应用[J].煤矿安全,2004(8):13-15.
[10]樊九林,朱高平.矿井通风阻力测定与分析[J].煤炭科技,2006(1):54-55.
[11]程绍仁,程建军.矿井通风阻力测定及对几个问题的分析[J].煤矿开采,2006(1):72-74.
[12]程根银,朱锴,石建军,等.晋普山煤矿通风系统阻力测定与分析[J].中国安全科学学报,2005(9):67.
[13]程根银,孙凯,李波,等.姚桥煤矿通风阻力测定及分析[J].辽宁工程技术大学学报(自然科学版),2012(5):737-741.