Analysis of the protective measures and key control points of occupational disease harm for a production line of a glass fiber wet mat
DU Chun-ling;DONG Lei;YAN Dong-jian;Department of Health Care,Zibo Prevention and Treatment Hospital for Occupational Diseases;
Objective To identify the occupational hazard factors of a production line of a glass fiber wet mat,determine the shortage of the occupational disease prevention measures and the critical control point. Methods Through field investigation and field test method,qualitative and quantitative evaluation were achieved. Results The main occupational hazard factors from the production line were sulfuric acid,hydrochloric acid,formaldehyde,vinyl acetate,nitric oxide,nitrogen dioxide,carbonic oxide. The qualified rate of formaldehyde was 60%,The concentration of binder circulating tank was4. 63 mg / m3,and the concentration of the impregnation was 0. 92%,which exceeded the limit value of formaldehyde,other risk factors were in line with in line with the occupational exposure limit. the others was 100%. Conclusion The protective facilities of dipping post are insufficient,the workers should often maintain the protective facilities and strengthen the ventilation to ensure the normal operation of the devices.