某炼金厂工作场所空气中氰化氢浓度现状分析

Analysis of hydrogen cyanide concentration in the workplace of alchemy factory

目的探讨炼金厂氰化工段车间空气中氰化氢在各作业点的分布及作业工人个体接触水平,提出预防措施及作业工人现场某岗位操作时应注意事项。方法依据《工作场所空气中有害物质监测的采样规范》《工作场所空气有毒物质的测定无机含氮化合物》进行检测和分析。结果冶炼车间氰化工段主要工作岗位的氰化氢浓度部分超过标准限值的要求,其中浸出槽结果为1.6 mg/m3,氰渣陶瓷过滤机结果为1.7 mg/m3,氰化钠库房结果为1.4 mg/m3。结论氰化氢是炼金厂氰化工段的主要职业病危害因素,在其主要工作场所中部分工序岗位氰化氢浓度过高,对作业工人的身体健康造成职业危害,应加强职业健康监护,防止职业病的产生。

Objective To explore the exposure level for individual workers and the distribution of hydrogen cyanide in the air of each workshop,provide preventive measures and points for attention at work.Methods According to Specifications of Air Sampling for Hazardous Substances Monitoring in the Workplace（GBZ 159-2004） and Method for Toxic Substance in the Air of Workplace Inorganic Nitrogen（GBZ/T 160.29-2004）,occupational hazards were detected and evaluated.Results The hydrogen cyanide concentration in main posts of the smelting workshop exceeded the national standards limits,in which the results for leaching tank were 1.6 mg/m3,cyanide slag ceramic filter 1.7 mg/m3,sodium cyanide storeroom 1.4 mg/m3.Conclusion Hydrogen cyanide is the main occupation of cyanide process plant hazards in the workplace,part of the working procedure of hydrogen cyanide concentration is so high that the operation workers harmed.It is suggested that the occupation health care should be strengthened to prevent the occupation disease.