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目的了解徐州市某煤矿作业场所存在的职业病危害现状,旨在有效控制该煤矿的职业病危害,保护劳动者健康。方法采用职业卫生现场调查法、职业健康体检、职业病危害因素检测和定量分级法等相结合的方法,对2015年该单位职业病危害现状展开调查。结果该煤矿主要职业病危害因素有煤矿粉尘、氮氧化物、二氧化硫、锰及其化合物、臭氧、硫化氢、一氧化碳、紫外辐射、高温、手传振动及噪声。检测结果中采煤面采煤司机岗位煤尘总尘时间加权浓度(TWA)为7.95mg/m~3、呼吸性TWA为4.18mg/m~3,超限倍数分别为2.9和2.3;掘进工作面(煤巷)打眼工手传振动4h等能量频率计权振动加速度为11.5m/s~2,掘进工作面(煤巷)打眼岗位8h等效噪声(LEX,8h)为86.0dB(A),其余岗位检测结果均符合国家职业卫生标准。结论该煤矿总体职业病危害因素控制效果较好,少数岗位煤尘、手传振动及噪声的危害控制效果较差,需进一步加强职业卫生管理和个体防护工作。
Objective To understand the status quo of occupational disease hazards in a coal mine workplace in Xuzhou, aiming to effectively control the occupational hazards of this coal mine and to protect the health of laborers. Methods The methods of occupational health field investigation, occupational health examination, detection of occupational hazards and quantitative grading method were used to investigate the status of occupational diseases in this unit in 2015. Results The main occupational hazards of the coal mine include coal mine dust, nitrogen oxides, sulfur dioxide, manganese and its compounds, ozone, hydrogen sulfide, carbon monoxide, ultraviolet radiation, high temperature, hand vibration and noise. The test results show that the time-weighted concentration (TWA) of dust on the coal-mining face of the coal-mining face coal mine is 7.95mg / m ~ 3, the TWA of respiration is 4.18mg / m ~ 3 and the overrun times are 2.9 and 2.3 respectively. (Coal roadway), eye-opening workers hand vibration 4h and other energy-frequency weighted vibration acceleration of 11.5m / s ~ 2, driving face (coal lane) drilling 8h equivalent noise (LEX, 8h) , The remaining post-test results are in line with national occupational health standards. Conclusion The overall occupational hazards in the coal mine have a good control effect. The coal dust, hand vibrations and noise hazards in the few coal mines have poor control effects. Occupational health management and individual protection work need to be further strengthened.