Investigation on the current situation of noise hazards in a petrochemical enterprise
Objective To investigate the current situation of the noise hazard in a petrochemical enterprise,to understand the key noise positions of the enterprise,and to put forward the basis for the prevention and control of the main noise posi-tions.Methods The investigation on noise distribution,field detection,protection facilities,individual protections and other contents of each position and workplace in the enterprise were analyzed.Results The test data showed that there were 158 noise positions in the enterprise,and the noise detection results for 8 positions,such as drying position of rare earth butadiene rubber device and forklift driver of low-voltage packaging workshop in finished product workshop,of them,exceeded the standard.The exceeding rate was 5.0％and the noise operation was classified as grade Ⅰ.The noise of the oth-er positions met the requirements of the national occupational exposure limit.There were 304 detection points with noise in-tensity≥85 dB(A)in the workplace,accounting for 48.3％(304/630)of the total,mainly distributed near high-noise equipment such as pumps,fans and compressors.Conclusion The noise intensity of some noise positions in the enterprise is relatively high,so they should be regarded as the key noise positions and implemented key control.
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