Evaluation on control effect of occupational hazards in transforming project of cold rolled high strength steel in Benxi Iron & Steel (Group) Co.,LTD

Objective To evaluate the control effect of the occupational hazards in transforming project of cold rolled high strength steel in Benxi Iron & Steel(Group) Co.,LTD. Methods The field investigation and detection of occupational health were used to evaluate the control effect of the occupational hazards in this project from January to March 2018. Results The production technology,facility layout,protective facilities for occupational hazards and auxiliary rooms in this project met the requirements of national standards,but the emergency rescue,individual protective measures and occupational health management were not perfect.The main occupational hazards in the production process were dust,hydrochloric acid,sodium hydroxide and noise. The detection results showed that the dust concentration was below 8 mg/m~3,hydrochloric acid concentration was below 7.5 mg/m~3 and sodium hydroxide concentration was below 2 mg/m~3. The noise level of operators at pickling inlet and acid regeneration station was higher than85 dB(A),while the noise levels of others were lower than the national occupational exposure limit. Conclusion The occupational hazards in this project have been controlled well.