Occupational Hazard Evaluation of Dust in Coal Preparation Plant Based on Cooperative Game and Classification Management
Dust in open-pit coal preparation plant has gradually become one of the core hazard factors that restrict the efficient,safe and environmental protection development of coal preparation plant.In order to evaluate the dust workplace of coal preparation plant scientifically and reasonably,considering the current situation of dust hazard in coal preparation plant and the fuzziness of evaluation method,the grey analytic hierarchy process and cooperative game weighting technology were introduced to construct the comprehensive evaluation model of dust occupational hazard in coal preparation plant.Taking a open-pit coal preparation plant in Zhundong,Xinjiang as an engineering example,firstly,the typical dust source and dust production mechanism of the coal preparation plant were analyzed,and the occupational hazard evaluation index system of the coal preparation plant was constructed from four aspects:the occupational prevention management of the coal preparation plant,the miners'status of the coal preparation plant,the environmental status of the coal preparation plant and the occupational prevention measures of the coal preparation plant.Secondly,based on the cooperative game,the improved analytic hierarchy process and entropy weight method were combined to determine the comprehensive weight coefficient of each index.Finally,the grey fuzzy technology was used to classify and evaluate the dust hazard of the coal preparation plant.The research shows that the cooperative game weighting technology can effectively eliminate subjective randomness and objective singularity errors.The dust occupational hazard evaluation results are consistent with the actual occupational prevention evaluation results.The evaluation model has certain scientificity and operability.
Coal preparation plantDustOccupational hazard evaluationClassification managementCooperative game