某热电厂脱硝改造工程职业病危害预评价

Pre evaluation of occupational hazards of denitrification reconstruction project in a thermal power plant

目的对某热电厂改造工程生产过程中产生的职业病危害因素危害程度及防护措施进行评价。方法采用类比法、检查表分析法对该项目进行评价。结果该项目生产过程中存在的职业病危害因素浓度一氧化碳0.88-1.00 mg/m3,氮氧化物0.02-0.09 mg/m3,二氧化硫〈0.01 mg/m3,氨〈0.67-3.95 mg/m3,煤尘0.14-3.40 mg/m3,噪声79.2-83.6 d B（A）,均符合国家卫生标准。结论该项目为职业病危害严重的项目,若能认真落实和实施拟采取的职业病防护设施和本预评价报告中提及的各项补充措施及建议,在职业病防治方面可行。

Objective To evaluate the hazard degree and preventive measures of occupational hazards in the reconstruction project of a thermal power plant. Methods The analogy method,examination table analysis method were used to evaluate the project. Results Occupational disease harm existed in the production process of this project,the concentration of factors of carbon monoxide was 0. 88- 1. 00 mg / m3 nitrogen oxides 0. 02- 0. 09 mg / m3,sulfur dioxide 0. 01 mg/m3,ammonia 0. 67- 3. 95 mg / m3,coal dust 0. 14- 3. 4 mg/m3,noise（ A） 88. 1- 92. 9d B,all of them were in line with national health standards. Conclusion The project is a serious occupational disease risk projects,if you can seriously implement and implement the proposed occupational disease prevention facilities and the pre evaluation report mentioned in the supplementary measures and recommendations,in terms of occupational disease prevention and control is feasible.