煤矿井下采掘作业地点气象条件调查

Investigation on Environmental Meteorology in Underground workplace of Coal Mine

目的 了解我省煤矿井下采掘作业地点气象条件现状 ,为井下作业人员职业防护提供依据。方法 按照国家标准规定的方法测定温度、相对湿度和风速 ,采用通风温湿度计和热球式风速仪测量。结果 4 4个作业场所干球温度范围 1 6 .0～ 2 8.6℃ ,3个作业地点不符合卫生标准 ;33个作业点风速符合卫生标准(75 % ) ,不符合卫生标准的主要原因是风速偏高。结论 井下作业管理者应针对不同作业地点气象条件 。

Objective To understand the status of environmental meteorology in underground workplace of coal mine in our province. Methods Temperature, relative humidity and wind speed were measured with ventilated dry-wet thermograph and hot bulb wind velocity meter according to the national standard. Results Among 44 underground workplaces of coal mine, the range of dry bulb temperature was 16.0-28.6℃, 3 workplaces were not conformed to the sanitation standard; 33 workplaces wind velocity did not meet the national standard (75%). The main cause not met the standard was higher wind velocity. Conclusions When air temperature of under mine is beyond the upper limit of standard, we should reduce work time or decrease labor quota to prevent heatstroke. Whereas, in lower temperature and higher wind velocity, we should warm up work uniform and consider the work of defending rheumatism to lessen harm to worker from bad environmental meteorology.