海南铁矿北一采区井下通风系统优化
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摘要
随着海南铁矿地采基建工作逐步完成,北一采区井下通风系统各水平均存在着风流串联及短路、采掘作业面供风量不足等问题,造成了部分作业地点矿尘浓度超标,采掘工作面通风不畅,严重影响了矿井安全生产和井下矿工的身体健康。分别采用了通风网络优化技术、机站优化技术以及Ventsim三维通风模拟技术对该矿井下通风系统进行了优化研究。采用了动态仿真模拟软件进行了通风网络解算,结果表明:通风系统优化后,矿井总风量能够达到185.29 m~3/s,试生产区域(0~-105 m水平)的风量为152.45 m~3/s,-120 m开拓水平风量为32.84 m~3/s,可有效改善井下通风条件,提高矿井生产效率。
With the gradually completion of the infrastructure work of underground mining of Hainan Iron Mine,the existing ventilation problems of the levels of underground ventilation system can be summarized as air flows cascade and short circuit,insufficient of air supply of mining and excavation working faces,which caused excessive concentration of mine dust,poor ventilation effects of mining and excavation working faces,and it is further affect the underground safety production and the miners' health. In order to solve the above ventilation problems of the mine,the existing ventilation system is optimized based on ventilation network optimization technique,ventilation machine station optimization technique and Ventsim 3 D ventilation simulation technique. The simulation calculation of the optimizaiton ventilation system is done based on dynamic simulaiton software. The results show that after optimization of the existing underground ventilation system of the mine,the underground total air volume of mine is 185. 29 m3/s,among them,the air volume of the test production area( 0 ~-105 m level) is 152. 45 m3/s,air volumn of-120 m development level is 32. 84 m3/s,which is help for improving the underground ventilation conditions of the mine and raising the working efficiency of underground production.
With the gradually completion of the infrastructure work of underground mining of Hainan Iron Mine,the existing ventilation problems of the levels of underground ventilation system can be summarized as air flows cascade and short circuit,insufficient of air supply of mining and excavation working faces,which caused excessive concentration of mine dust,poor ventilation effects of mining and excavation working faces,and it is further affect the underground safety production and the miners' health. In order to solve the above ventilation problems of the mine,the existing ventilation system is optimized based on ventilation network optimization technique,ventilation machine station optimization technique and Ventsim 3 D ventilation simulation technique. The simulation calculation of the optimizaiton ventilation system is done based on dynamic simulaiton software. The results show that after optimization of the existing underground ventilation system of the mine,the underground total air volume of mine is 185. 29 m3/s,among them,the air volume of the test production area( 0 ~-105 m level) is 152. 45 m3/s,air volumn of-120 m development level is 32. 84 m3/s,which is help for improving the underground ventilation conditions of the mine and raising the working efficiency of underground production.
引文
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[3]吴冷峻,宋爱东,周伟,等.司家营铁矿南区2 000万t/a工程通风系统优化研究[J].金属矿山,2011(10):139-143.
[4]王剑波,周伟,吴冷峻,等.远程集中控制技术在调节通风系统风压平衡中的应用[J].金属矿山,2015(4):278-281.
[5]周伟,扈守全,汪林红,等.阜山金矿抽出式通风系统采空区漏风控制技术研究[J].金属矿山,2016(9):174-178.
[6]中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.GB 16423—2006金属非金属矿山安全规程[S].北京:中国标准出版社,2006.
[7]张鹏国,刘允秋.早子沟金矿通风系统优化方案[J].现代矿业,2017(8):261-263.
[8]王红兵,贾敏涛.多机站通风在多中段回采矿山的应用[J].现代矿业,2016(10):144-147.
[9]潘军义,董振民.多级机站通风局部阻力的研究[J].金属矿山,2001(9):49-51.
[10]贾安民.井下多级机站通风监控与节能技术研究[J].金属矿山,2012(6):113-119.
[11]鲍瑞.矿井通风系统可靠性分析[D].西安:西安科技大学,2009.
[12]李海港,唐敏康,黄同林.金属矿山井下通风系统人机工程可靠性分析[J].金属矿山,2011(12):139-142.