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目的对某金矿堆浸工艺过程中的职业病危害因素进行调查与分析,探讨该类工程职业病危害的关键控制点和关键控制措施,为该类工程的职业病防治管理提供依据。方法采用职业卫生现场调查、系统工程分析、现场检测、实验室分析进行分析与评价。结果存在的主要职业病危害因素为矽尘和氰化氢;检测结果表明,堆场、采矿场挖掘机司机接触矽尘浓度(总)范围为0.25~1.70 mg/m3,超标率为30%;喷淋浸出、堆场等岗位作业人员接触氰化氢浓度范围为0.07~1.34 mg/m3,符合职业接触限值要求。结论现场调查和检测结果表明,用人单位应重点关注存在矽尘危害的工作岗位,并加强电解间的事故通风设计,防止急性中毒事故的发生。
Objective To investigate and analyze the occupational hazards in a heap leaching process of some gold mines, discuss the key control points and key control measures of the occupational hazards of such projects, and provide evidences for the prevention and control of occupational diseases in such projects. Methods The occupational health field survey, system engineering analysis, on-site testing and laboratory analysis were conducted to analyze and evaluate. Results The main risk factors for occupational diseases were silica dust and hydrogen cyanide. The test results showed that the concentration (total) of dust exposure to drivers of excavator drivers in the yard and the mining field ranged from 0.25 to 1.70 mg / m3, and the exceeding standard rate was 30% Leaching, dumping and other post-operative personnel exposed to hydrogen cyanide concentration range of 0.07 ~ 1.34 mg / m3, in line with the requirements of occupational exposure limits. Conclusions The field investigation and test results show that the employer should focus on the jobs posed by the hazards of silica dust and strengthen the accident ventilation design between electrolysis plants to prevent the occurrence of acute poisoning accidents.