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目的对某钨业公司白钨矿生产仲钨酸铵技术改造项目进行职业病危害因素识别、分析,评价相应防护措施效果。方法采用职业卫生现场调查、职业病危害因素检测、检查表法等进行综合评价。结果该项目生产过程中产生的主要职业病危害因素有氢氧化钠、钨、硫酸、盐酸、氨、稀土粉尘、噪声、高温、γ射线;稀土粉尘和毒物的检测合格率均达100.0%;噪声检测合格率为83.3%。结论该建设项目职业病危害控制措施有效、可行。
OBJECTIVE To identify, analyze and evaluate the occupational hazards in the technological transformation of ammonium paratungstate produced by a tungsten company scheelite. Methods The occupational health field survey, occupational disease risk factor testing, checklist method were comprehensively evaluated. Results The main occupational hazards in the process of the project were sodium hydroxide, tungsten, sulfuric acid, hydrochloric acid, ammonia, rare earth dust, noise, high temperature and γ-rays. The detection rates of rare earth dust and poison reached 100.0% The pass rate was 83.3%. Conclusion The control measures of occupational hazards in this project are effective and feasible.