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黄金科学技术 ›› 2018, Vol. 26 ›› Issue (5): 629-634.doi: 10.11872/j.issn.1005-2518.2018.05.629

• • 上一篇    下一篇

焦家寨煤矿通风系统阻力测定与分析

朱旭东1(),鲁忠良1,2,3()   

  1. 1 河南理工大学安全科学与工程学院,河南 焦作 454000
    2 河南省瓦斯地质与瓦斯治理重点实验室,河南 焦作 454000
    3 煤炭安全生产河南省协同创新中心,河南 焦作 454000
  • 收稿日期:2017-11-06 修回日期:2018-03-29 出版日期:2018-10-20 发布日期:2018-10-31
  • 作者简介:第一朱旭东(1992-),男,河南焦作人,硕士研究生,从事矿井灾害防治和通风除尘研究工作。 769309830@qq.com|鲁忠良(1964-),男,吉林白城人,教授,从事矿井粉尘防治研究与教学工作。
  • 基金资助:
    国家自然科学基金项目“基于有源风网力学模型的煤与瓦斯突出矿井通风系统灾变过程研究”(51174109)

Measurement and Analysis of Resistance in Ventilation System of Jiaojiazhai Coal Mine

Xudong ZHU1(),Zhongliang LU1,2,3()   

  1. 1 School of Safety Science and Engineering,Henan Polytechnic University,Jiaozuo 454000,Henan, China
    2 Key Laboratory of Gas Geology and Gas Control,Jiaozuo 454000,Henan, China
    3 The Collaborative Innovation Center of Coal Safety Production of Henan Province,Jiaozuo 454000,Henan, China
  • Received:2017-11-06 Revised:2018-03-29 Online:2018-10-20 Published:2018-10-31

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,有必要对矿井通风系统的阻力进行测定。采用基点法进行通风系统阻力测定,选取不同测点测定参数,并从测定精度评价、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:焦家寨煤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,3个采区的公用进风风路风阻偏大,矿井井下调节风量的设施过多,且风门漏风量偏大,建议更换1号和2号风机,并加强矿井总回风巷道的维护和管理。

关键词: 通风系统, 通风阻力, 基点法, 阻力分布, 矿井, 回风巷道, 等积孔, 焦家寨煤矿

Abstract:

In order to understand the distribution of ventilation resistance in mine ventilation system,provide better ventilation and resistance reduction,and to provide reliable basic information for ventilation design,network calculation and optimization,it is necessary to measure the resistance of mine ventilation system.The resistance of ventilation system was measured by base point method,and the parameters were determined for different measuring points.The measurement results were further calculated and analyzed from four aspects: evaluation of measurement accuracy,the distribution of ventilation resistance,the accumulation holes of mine and wind resistance.The results show that the layout of ventilation system and resistance distribution of Jiaojiazhai coal mine is reasonable,and the degree of ease of ventilation is easy.The wind resistance of the common air inlet wind roads in the three mining areas is large,and the facilities for regulating the air volume down hole in mines are too much,and the amount of air leakage from the damper is too high.It is recommended to replace the No.1 and No.2 fans and to strengthen the maintenance and management of the mine’s total return airway.

Key words: ventilation system, ventilation resistance, base point method, resistance distribution, mine, air re-turn laneway, equivalent orifice, Jiaojiazhai coal mine

中图分类号: 

  • TD724

表1

测定仪器选择"

名称 型号 数量
气压计 CPD2/20型 3 台
通风干湿球温度计 DHM-2 型 2 台
风表 高速、中速、微速 6块(各2块)
秒表 - 2块
皮尺 - 1个
测距仪 - 1个

图1

焦家寨煤矿矿井通风系统网络图"

表2

各主测线路的测量精度"

主测线路 测量精度
213采区(主测线路1) 3.97
221采区(主测线路2) 4.68
521采区(主测线路3) 4.86

表3

213采区通风系统阻力分布状况"

区段 点号划分 阻力/Pa 占总阻力百分比/%
合计 2 964.89 100.00
进风段 1-2-3-4-6 1 281.41 43.22
用风段 7-8-9-10 636.25 21.46
回风段 11-12-13 1 047.23 35.32

表4

221采区通风系统阻力分布状况"

区段 点号划分 阻力/Pa 占总阻力百分比/%
合计 3 091.21 100.00
进风段 14-15-…-25-26 1 043.84 33.77
用风段 27-28-29-30-31 205.02 6.63
回风段 32-33-…-37-38 1 842.35 59.60

表5

521采区通风系统阻力分布状况"

区段 点号划分 阻力/Pa 占总阻力百分比/%
合计 5 366.90 100.00
进风段 1-2-4-5-39-40-41-42 2 395.78 44.64
用风段 43-44-45-46-47 646.44 12.04
回风段 48-49-…-54-55 2 324.64 43.31

表6

各采区通风系统的等积孔"

采区名称 等积孔
213采区 2.05
221采区 2.20
521采区 1.72
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