搪瓷喷花工尘肺致病因素的卫生学调查

A sanitary survey of pneumoconiosis pathogenic factor in enamel work

目的通过现场职业调查探明搪瓷喷花粉尘的性质。方法对搪瓷粉尘中的游离性二氧化矽分散度进行分析，并对空气中的粉尘浓度进行测定。结果搪瓷生料中以α－ＳｉＯ２为主，当经过８００～１３００℃的高温熔炼后，通过Ｘ射线衍射测定熟料中是一种硅酸盐混合物。结论搪瓷喷花作业的尘肺致病因素是硅酸盐混合物。

Objective To verify the characteristice of enamel dust by occupational investigation at work site. MethodsTBZBy analyzing the dispersion factor of dissociative silica in the raw material of enamel dust.The density of enamel dust in the air was also determined.HZResults It was mainly - SiO2 in the enamel raw material. After being melted in 8001300,it changed to a silicate compound by X-ray diffraction. Conclusion The pathogenic factor in enamel work is the silicate compound.