摘要
目的模拟深部开采矿井井下高温环境,分析机械通风不同送风参数下的降温效果,确定出最佳送风参数,为深部开采矿井通风系统的设计提供理论依据.方法利用Fluent软件进行数值模拟,竖井壁面温度根据地温变化特点利用UDF编程确定,测定自然通风时矿井内的温度分布、风速大小,分析在深部开采矿井机械通风不同的送风速度、送风温度下,井下的降温效果,确定出最佳送风参数.结果当深采矿井送风风速为4 m/s,送风温度为15℃时水平巷道内的温度能够降到28℃,满足矿山安全规程规定.结论深采矿山开采深度为1 000 m,巷道长度为60 m时采用竖井机械通风能够实现井下高温环境的有效控制.对更为复杂的矿井,可以考虑采用细水雾和机械通风联合降温的方法,还可实现粉尘的综合防治.
The paper aims to simulate deep mining in mine of high temperature environment,analysis air cooling effect of the different parameters of the mechanical ventilation,to determine the best supply air parameters,to provide the theory basis for design of the deep mining of the mine ventilation system.Shaft wall temperature is according to the changes of geothermal characteristics and using UDF programming of fluent,using numerical simulation software Fluent,determine the temperature distribution of natural ventilation in the mine,wind speed size;analysis the cooling effect of the underground of the mine deep mining adopting mechanical ventilation in different supply air speed,different air supply temperature,to determine the best supply air parameters.When deep mining wells supply air winds of 4 m/s,supply air temperature for 15 ℃ in the level of roadway temperature can drop to 28 ℃,meet mine safety regulations sets.The ultimate load is that deep mining the mining depth for 1 000 m when used mechanical ventilation shaft can achieve high temperature in the control of the environment.For more complicated mine,can consider to use water mist and mechanical ventilation combined cooling method,also can realize dust comprehensive prevention and control.
出处
《沈阳建筑大学学报（自然科学版）》
CAS
北大核心
2013年第1期127-131,共5页
Journal of Shenyang Jianzhu University：Natural Science
基金
国家自然科学基金项目(51174046)
国家自然科学基金项目(91024022)
关键词
深采矿井
自然通风
机械通风
速度
温度
deep mining wells
natural ventilation
mechanical ventilation
velocity
temperature
