论文部分内容阅读
为了解某银矿生产场所的粉尘危害情况、1998年8～10月,对该矿进行了劳动卫生学调查.1 对象与方法1.1 现场劳动卫生学调查 查阅有关生产工艺资料,深入各分厂进行调查.1.2 健康体检 随机选择掘进工、出渣工进行一般性健康体检和拍摄胸部X光片,由十堰市职业病诊断组进行诊断.1.3 卫生监测 掘进工位采样点设置在距工作面3～6m回风侧的呼吸带,破碎工位在破碎机操作工人的呼吸带高度进行监测.粉尘浓度、游离二氧化硅含量、分散度的测定,分别采用质量浓度、焦磷酸法和数量百分比法.
In order to understand the dust hazard of a silver production site, a survey of labor hygiene was conducted on the mine from August to October 1998. 1 Subjects and Methods 1.1 Field Labor Hygiene Investigation Refer to relevant production process information for further in-depth study at each branch Survey.1.2 Physical examination randomly selected nursery workers, workers out of a general health examination and chest X-ray film, Shiyan City, occupational disease diagnosis group for diagnosis.1.3 Sampling stations for health monitoring tunneling set in the face from 3 to 6m Respiratory belt on the return air side and crushing station were monitored for the height of the breathing zone of the crusher operator.The concentrations of dust, free silica and dispersity were measured by mass concentration, pyrophosphoric acid and quantitative percentage respectively.