矿井通风系统节能减阻研究
|
摘要
随着采矿设备的快速发展,矿井机械化程度越来越高,矿山年用电量也在不断增加。根据生产系统特点,用电环节主要包括提升、排水、通风、压风自救等系统。统计资料表明,矿井通风系统耗电量约占全矿总用电量的1/3左右。风机的输入功率主要消耗于总进风线路、采区网路、总回风线路中。所以,做好矿井通风系统节能减阻,应从以上三个方面综合考虑。针对某矿通风系统阻力分布特点,以经济断面法为研究手段,通过经济技术比较、计算验证,提出了某矿山总回风线路最优通风断面参数,较好地实现了节能减租的目的。经过计算,某矿山回风巷道在保持井巷通过风量不变的前提下,采用最优通风断面后,一次性增加了1 177.9万元掘砌费用,而在服务年限7 a内可减少通风费用8 827.98万元,节能减阻经济效益十分明显。
With the rapid development of mining equipment,the degree of mine mechanization is getting higher and higher,and the annual electricity consumption of mine is also increasing. According to the characteristics of the production system,the power consumption links mainly include lifting,drainage,ventilation,pressure self-help and other systems. Statistical data show that the electricity consumption of mine ventilation system accounts for about 1/3 of the total electricity consumption of the whole mine. The input power of the fan is mainly consumed in the total air intake line,network in mining area and total return air line. Therefore,energy saving and drag reduction of mine ventilation system should be considered from the three aspects above. Aiming at the resistance distribution characteristics of the ventilation system in a mine,and by means of economic section method,the optimal ventilation section parameters of total return air line in a mine are put forward through economic and technological comparison and calculation verification,and the purpose of energy saving and rent reduction is easily realized. After calculation,under the premise of keeping the air flow and adopting the optimal ventilation section,the excavation and construction cost of return air tunnel in a mine was increased by 11.779 million yuan at one time,while the ventilation cost could be reduced by 88.279 8 million yuan within seven years of service with considerable economic benefits of energy saving and drag reduction.
With the rapid development of mining equipment,the degree of mine mechanization is getting higher and higher,and the annual electricity consumption of mine is also increasing. According to the characteristics of the production system,the power consumption links mainly include lifting,drainage,ventilation,pressure self-help and other systems. Statistical data show that the electricity consumption of mine ventilation system accounts for about 1/3 of the total electricity consumption of the whole mine. The input power of the fan is mainly consumed in the total air intake line,network in mining area and total return air line. Therefore,energy saving and drag reduction of mine ventilation system should be considered from the three aspects above. Aiming at the resistance distribution characteristics of the ventilation system in a mine,and by means of economic section method,the optimal ventilation section parameters of total return air line in a mine are put forward through economic and technological comparison and calculation verification,and the purpose of energy saving and rent reduction is easily realized. After calculation,under the premise of keeping the air flow and adopting the optimal ventilation section,the excavation and construction cost of return air tunnel in a mine was increased by 11.779 million yuan at one time,while the ventilation cost could be reduced by 88.279 8 million yuan within seven years of service with considerable economic benefits of energy saving and drag reduction.
引文
[1]周志杨.大型复杂改扩建矿井通风系统优化研究[D].赣州:江西理工大学,2016:31-32.Zhou Zhiyang.Study on Optimization of Large-Complex and Restructive-Expansive Mine Ventilation System[D].Ganzhou:Jiangxi University of Science and Technology,2016:31-32.
[2]张国枢,谭允祯.通风安全学[M].徐州:中国矿业大学出版社,2007:40-41.Zhang Guoshu,Tan Yunzheng.Ventilation and Safety[M].Xuzhou:China University of Mining and Technology Press,2007:40-41.
[3]李中华.矿井通风网络结构可靠性的研究[D].青岛:山东科技大学,2004.Li Zhonghua.Study on the Reliability of Mine Ventilation Network Structure[D].Qingdao:Shandong University of Science and Technology,2004.
[4]孙广福.浅谈矿井通风降低阻力措施[J].科技创新与应用,2012(S):69.Sun Guangfu.Discussion on the measures to reduce the resistance of mine ventilation[J].Technology Innovation and Application,2012(S):69.
[5]王时彬,老厂锡矿新区矿井通风系统优化研究[D].昆明:昆明理工大学,2012.Wang Shibin.Optimization of Mine Ventilation System in the Old Plant Tin Mine Area[D].Kunming:Kunming University of Science and Technology,2012.
[6]胡春亚.基于方差膨胀因子的衰老矿井通风系统优化指标体系的研究与应用[D].徐州:中国矿业大学,2016.Hu Chunya.Research and Application of Index System Optimizition of Aging Mine Ventilation Based on Variance Inflation Factor[D].Xuzhou:China University of Mining and Technology,2016.
[7]王春新,孙玉峰.减阻法通风断面的计算[J].煤矿安全,2000(3):35-36.Wang Chunxin,Sun Yufeng.Calculation of ventilation section of drag reduction method[J].Coal Mine Safety,2000(3):35-36.
[2]张国枢,谭允祯.通风安全学[M].徐州:中国矿业大学出版社,2007:40-41.Zhang Guoshu,Tan Yunzheng.Ventilation and Safety[M].Xuzhou:China University of Mining and Technology Press,2007:40-41.
[3]李中华.矿井通风网络结构可靠性的研究[D].青岛:山东科技大学,2004.Li Zhonghua.Study on the Reliability of Mine Ventilation Network Structure[D].Qingdao:Shandong University of Science and Technology,2004.
[4]孙广福.浅谈矿井通风降低阻力措施[J].科技创新与应用,2012(S):69.Sun Guangfu.Discussion on the measures to reduce the resistance of mine ventilation[J].Technology Innovation and Application,2012(S):69.
[5]王时彬,老厂锡矿新区矿井通风系统优化研究[D].昆明:昆明理工大学,2012.Wang Shibin.Optimization of Mine Ventilation System in the Old Plant Tin Mine Area[D].Kunming:Kunming University of Science and Technology,2012.
[6]胡春亚.基于方差膨胀因子的衰老矿井通风系统优化指标体系的研究与应用[D].徐州:中国矿业大学,2016.Hu Chunya.Research and Application of Index System Optimizition of Aging Mine Ventilation Based on Variance Inflation Factor[D].Xuzhou:China University of Mining and Technology,2016.
[7]王春新,孙玉峰.减阻法通风断面的计算[J].煤矿安全,2000(3):35-36.Wang Chunxin,Sun Yufeng.Calculation of ventilation section of drag reduction method[J].Coal Mine Safety,2000(3):35-36.