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目的预测某瓶级聚酯装置职业病危害因素的种类和程度,并分析其关键控制点。方法依据《工业企业设计卫生标准》划分生产单元,采用经验法、类比法、检查表法进行分析。结果生产过程中可能存在的职业病危害因素有粉尘、乙二醇、对苯二甲酸、锑及其化合物、联苯醚、联苯、噪声、高温、工频电磁场等,类比检测结果表明,粉尘C TWA为0.6~4.6 mg/m3,乙二醇C TWA为1.4~1.6 mg/m3,对苯二甲酸C TWA为0.6~0.8 mg/m3,锑及其化合物C TWA为0.08~0.09 mg/m3,联苯醚C TWA为0.33~0.36 mg/m3,联苯C TWA为0.33~0.34 mg/m3,均低于职业接触限值。结论该项目主要的职业病危害因素是粉尘、乙二醇、对苯二甲酸、锑及其化合物、联苯醚、联苯和噪声,应从职业病危害发生的关键控制部位加强防治工作。
Objective To predict the type and degree of occupational hazards in a bottle of polyester plant and analyze its key control points. Methods Based on the “Hygienic Standards for Design of Industrial Enterprises”, production units were divided into two groups, and empirical methods, analogy methods and checklist methods were used to analyze them. Results The possible occupational hazards in the production process were dust, ethylene glycol, terephthalic acid, antimony and its compounds, diphenyl ether, biphenyl, noise, high temperature, power frequency electromagnetic field and so on. TWA is 0.6-4.6 mg / m3, C TWA of ethylene glycol is 1.4-1.6 mg / m3, C TWA of terephthalic acid is 0.6-0.8 mg / m3, antimony and its compounds C TWA are 0.08-0.09 mg / m3, Diphenyl ether C TWA 0.33 ~ 0.36 mg / m3, biphenyl C TWA 0.33 ~ 0.34 mg / m3, are lower than the occupational exposure limits. Conclusion The main occupational hazards in this project are dust, ethylene glycol, terephthalic acid, antimony and its compounds, diphenyl ether, biphenyl and noise. Prevention and control should be strengthened from the key control sites where occupational hazards occur.