山西寺河矿“三进三回”通风系统优化设计
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摘要
寺河矿当前采用分区通风方式,由3个进风井和3个回风井组成,通风系统复杂。随着生产的持续,出现1#回风井所在分区通风系统风量利用率低、电力消耗较大、风机低压供电不稳定和2#回风井所在通风区域巷通风距离长、阻力大、通风能力近饱和等问题,整个矿井安全可靠性较差。通过对矿井进行通风参数测试与数据处理、通风系统网络普查,构建了通风仿真解算网络,从通风系统阻力合理性、矿井各用风地点风量供需对比、三区阻力分布和公共进风路线对风机工况扰动等角度详细分析了当前通风系统存在的具体问题。对主干风路(3个进风井和3个回风井)的过风能力和各用风点的需风量进行了核定,根据总进风量满足生产需求且总进风量与总回风量相匹配的原则,提出将当前3#进风井变为回风井、将1#回风井和2#回风井变为进风井的改造方案,即将"三进三回"通风系统改造为"四进两回"通风系统。对改造后的通风系统重新进行了盘区划分,按照选定的最优盘区划分方案对"四进两回"通风系统进行了调整,最终总回风量达到17 743.2 m~3/min,回风量增加,总阻力降低,各用风点的风量满足要求,系统阻力分布合理,风机能耗降低。
Zoning ventilation system is used in Sihe Mine currently,which consists of three intake shafts and three return shafts,and the ventilation system is complex.As production continues,many problems have arisen,such as low utilization rate of air volume,greater power consumption,unstable low-voltage power supply of fun in ventilation system of No.1 return shaft,long ventilation distance,large resistance and ventilation capacity near saturation in ventilation system of No. 2 return shaft,the safety and reliability of the whole mine is poor.In order to solve the above existing problems,the ventilation simulation computation network is established by means of ventilation parameters testing,data processing and ventilation system network surveying,and so on.The specific problems of current ventilation system of the mine are analyzed in detail from the aspects of resistance rationality of ventilation system,comparison between supply and demand of air volume in different using places,resistance distribution in the three zones and disturbance of public air intake route to fan working conditions.The ventilation capacity of main air routes(three intake shafts and three return shafts)and the required air volume of each using places are checked.According to the principle that the total air intake should meet the production demand and the total air intake should match the total air return,the optimization and improvement scheme of transforming 3#air intake shaft into return shaft and transforming 1#and 2#return shafts into intake shafts is proposed,that is,the"three intake shafts and three return shafts"ventilation system is transformed into"four intake shafts and two return shafts"ventilation system.The"four intake shafts and two return shafts"ventilation system is re-divided into different sections,and the new ventilation system is adjusted according to the selected optimal partition scheme.The study results show that the final total return air volume reaches 17 743.2 m~3/min,the return air volume is increased,the total resistance is decreased,the air volume at each using place meets the requirements,the system resistance distribution is reasonable and the energy consumption of the fan is reduced.
Zoning ventilation system is used in Sihe Mine currently,which consists of three intake shafts and three return shafts,and the ventilation system is complex.As production continues,many problems have arisen,such as low utilization rate of air volume,greater power consumption,unstable low-voltage power supply of fun in ventilation system of No.1 return shaft,long ventilation distance,large resistance and ventilation capacity near saturation in ventilation system of No. 2 return shaft,the safety and reliability of the whole mine is poor.In order to solve the above existing problems,the ventilation simulation computation network is established by means of ventilation parameters testing,data processing and ventilation system network surveying,and so on.The specific problems of current ventilation system of the mine are analyzed in detail from the aspects of resistance rationality of ventilation system,comparison between supply and demand of air volume in different using places,resistance distribution in the three zones and disturbance of public air intake route to fan working conditions.The ventilation capacity of main air routes(three intake shafts and three return shafts)and the required air volume of each using places are checked.According to the principle that the total air intake should meet the production demand and the total air intake should match the total air return,the optimization and improvement scheme of transforming 3#air intake shaft into return shaft and transforming 1#and 2#return shafts into intake shafts is proposed,that is,the"three intake shafts and three return shafts"ventilation system is transformed into"four intake shafts and two return shafts"ventilation system.The"four intake shafts and two return shafts"ventilation system is re-divided into different sections,and the new ventilation system is adjusted according to the selected optimal partition scheme.The study results show that the final total return air volume reaches 17 743.2 m~3/min,the return air volume is increased,the total resistance is decreased,the air volume at each using place meets the requirements,the system resistance distribution is reasonable and the energy consumption of the fan is reduced.
引文
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[16]舒金华.基于MVSS的杏花煤矿通风系统分析与优化改造[D].阜新:辽宁工程技术大学,2006.Shu Jinhua.Analysis and Optimization of Ventilation System in Xinghua Coal Mine Based on MVSS[D].Fuxin:Liaoning Technical University,2006.
[17]陈宙,赵恩平,蒋仲安,等.矿井通风阻力测定数据平差处理方法及应用[J].中国矿业,2006(10):105-108.Chen Zhou,Zhao Enping,Jiang Zhong'an,et al.Adjustment processing method and application of mine ventilation resistance measurement data[J].China Mining Magazine,2006(10):105-108.
[18]宋迎春,谢雪梅,陈晓林.不确定性平差模型的平差准则与解算方法[J].测绘学报,2015,44(2):135-141.Song Yingchun,Xie Xuemei,Chen Xiaolin.Adjustment criterion and alporithm in Adjustment model with uncertainty[J].Acta Geodaetica et Cartographica Sinica,2015,44(2):135-141.
[19]刘志平,张书毕,卞和方.经典平差函数模型的概括形式分析[J].测绘工程,2014,24(3):78-80.Liu Zhiping,Zhang Shubi,Bian Hefang.Research on the generalized form of classical adjustment models[J].Engineering of Surveying and Mapping,2014,24(3):78-80.
[20]邢志海.条件平差原理及通风阻力的条件平差[J].煤炭技术,2003,22(11):60-61.Xing Zhihai.Principle of conditional adjustment and conditional adjustment of ventilation resistance[J].Coal Technology,2003,22(11):60-61.
[21]李思达.总体最小二乘平差方法及若干测绘应用研究[D].徐州:中国矿业大学,2017.Li Sida.Total Least Squares Adjustment Method and its Applications in Surveying and Mapping[D].Xuzhou:China University of Mining and Technology,2017.
[22]宜茂生,陈长华,卢国斌,等.井巷通风阻力的合理分布[J].阜新矿业学院学报:自然科学版,1993,12(3):7-11.Yi Maosheng,Chen Changhua,Lu Guobin,et al.Rational distribution of ventilation resistance in wells[J].Journal of Fuxin Mining Institute:Natural Science Edition,1993,12(3):7-11.
[2]王天明,李宗翔,王欢.节点法中风机处理方法及通风网络建模[J].煤炭学报,2018,43(10):2817-2822.Wang Tianming,Li Zongxiang,Wang Huan.Method of fan treatment and ventilation network modeling in node method[J].Journal of China Coal Society,2018,43(10):2817-2822.
[3]魏连江,汪云甲,方宗武.复杂通风网络简化过程与原理研究[J].中国矿业大学学报,2010(4):480-483.Wei Lianjiang,Wang Yunjia,Fang Zongwu.Theory and process to simplify complicated ventilation networks[J].Journal of China University of Mining&Technology,2010(4):480-483.
[4]田卫东.通风网络解算方法综述[J].矿业安全与环保,2016,43(3):96-99.Tian Weidong.Review on solution methods for mine ventilation network[J].Mining Safety and Environmental Protection,2016,43(3):96-99.
[5]程磊,党海波,彭信山.矿井通风网络分析研究现状及趋势[J].煤炭工程,2011(3):90-92.Cheng Lei,Dang Haibo,Peng Xinshan.Research status and trend of mine ventilation network analysis[J].Coal Engineering,2011(3):90-92.
[6]华宁,陈喜山,曹娥,等.矿井通风网络解算软件研究综述[J].青岛理工大学学报,2011,32(1):63-68.Hua Ning,Chen Xishan,Cao E,et al.Research summary on mine ventilation network solution software[J].Journal of Qingdao University of Technology,2011,32(1):63-68.
[7]徐婷婷.金属矿采空区管流场流一体化研究[D].阜新:辽宁工程技术大学,2018.Xu Tingting.Study on the Integration of Pipe Flow Field and Flow in Goaf of Metal Mine[D].Fuxin:Liaoning Technical University,2018.
[8]岳崇彪.浅析多风井矿井通风系统优化改造[J].能源与节能,2017(9):50-51.Yue Chongbiao.Analysis of optimization of ventilation system in Multi-shaft mines[J].Energy and Energy Conservation,2017(9):50-51.
[9]范加锋,富向,高永强,等.付家焉煤矿矿井通风系统优化实践[J].煤矿安全,2016,47(9):151-154.Fan Jiafeng,Fu Xiang,Gao Yongqiang,et al.Optimization practice of mine ventilation system in Fujiayan Coal Mine[J].Safety in Coal Mines,2016,47(9):151-154.
[10]王永信,江重阳,魏培瑾.高阻力矿井通风系统优化改造[J].煤矿安全,2016,47(3):121-123.Wang Yongxin,Jiang Chongyang,Wei Peijin.Optimization and modification of ventilation system in high resistance mine[J].Safety in Coal Mines,2016,47(3):121-123.
[11]陶树银,熊正明,程哲,等.金属矿山矿井通风系统优化研究[J].矿业研究与开发,2012(2):58-60.Tao Shuyin,Xiong Zhengming,Cheng Zhe,et al.Study on the optimization of ventilation system of metal mine[J].Mining Research and Development,2012(2):58-60.
[12]张鸿斌,高军军,李雨成.凤凰山矿通风阻力测定分析与优化实践[J].矿业安全与环保,2017,44(1):83-86.ZHang Hongbin,Gao Junjun,Li Yucheng.Analysis and optimization practice of ventilation resistance determination in Fenghuangshan Coal Mine[J].Mining Safety&Environmental Protection,2017,44(1):83-86.
[13]李奇.MVSS3.0通风仿真软件的可靠性及应用研究[J].中州煤炭,2012(12):7-8.Li Qi.Study on reliability and application of MVSS3.0 ventilation simulation software[J].Zhongzhou Coal,2012(12):7-8.
[14]赵千里,刘剑.用矿井通风仿真系统(MVSS)确定通风系统优化改造方案[J].中国安全科学学报,2002,12(2):14-18.Zhaon Qianli,Liu Jian.Optimizing the reform protocol for ventilation system by mine ventilation simulation system[J].China Safety Science Journal,2002,12(2):14-18.
[15]李雨成,刘剑,贾廷贵.MVSS3.0在矿井通风系统改造中的应用[J].煤矿安全,2007,38(4):21-22.Li Yucheng,Liu Jian,Jia Tinggui.Application of MVSS3.0 in mine ventilation system transformation[J].Coal Mine Safety,2007,38(4):21-22.
[16]舒金华.基于MVSS的杏花煤矿通风系统分析与优化改造[D].阜新:辽宁工程技术大学,2006.Shu Jinhua.Analysis and Optimization of Ventilation System in Xinghua Coal Mine Based on MVSS[D].Fuxin:Liaoning Technical University,2006.
[17]陈宙,赵恩平,蒋仲安,等.矿井通风阻力测定数据平差处理方法及应用[J].中国矿业,2006(10):105-108.Chen Zhou,Zhao Enping,Jiang Zhong'an,et al.Adjustment processing method and application of mine ventilation resistance measurement data[J].China Mining Magazine,2006(10):105-108.
[18]宋迎春,谢雪梅,陈晓林.不确定性平差模型的平差准则与解算方法[J].测绘学报,2015,44(2):135-141.Song Yingchun,Xie Xuemei,Chen Xiaolin.Adjustment criterion and alporithm in Adjustment model with uncertainty[J].Acta Geodaetica et Cartographica Sinica,2015,44(2):135-141.
[19]刘志平,张书毕,卞和方.经典平差函数模型的概括形式分析[J].测绘工程,2014,24(3):78-80.Liu Zhiping,Zhang Shubi,Bian Hefang.Research on the generalized form of classical adjustment models[J].Engineering of Surveying and Mapping,2014,24(3):78-80.
[20]邢志海.条件平差原理及通风阻力的条件平差[J].煤炭技术,2003,22(11):60-61.Xing Zhihai.Principle of conditional adjustment and conditional adjustment of ventilation resistance[J].Coal Technology,2003,22(11):60-61.
[21]李思达.总体最小二乘平差方法及若干测绘应用研究[D].徐州:中国矿业大学,2017.Li Sida.Total Least Squares Adjustment Method and its Applications in Surveying and Mapping[D].Xuzhou:China University of Mining and Technology,2017.
[22]宜茂生,陈长华,卢国斌,等.井巷通风阻力的合理分布[J].阜新矿业学院学报:自然科学版,1993,12(3):7-11.Yi Maosheng,Chen Changhua,Lu Guobin,et al.Rational distribution of ventilation resistance in wells[J].Journal of Fuxin Mining Institute:Natural Science Edition,1993,12(3):7-11.