The dust produced in the production process of open-pit mines not only causes low visibility in the local area,but also affects the health of workers and the normal growth of vegetation.At the same time,it causes additional wear to mining equipment and reduces production efficiency of the mine.The results show that due to the complex influence of meteorological conditions and geological environment on dust accumulation and diffusion and migration in open pit,especially the factors of airflow and humidity,the law of dust diffusion is greatly changed,which makes it difficult to quantitatively describe the whole process of dust migration and diffusion.At the same time,there is a lack of intelligent and integrated dust monitoring and dust reduction system in the monitoring of open pit.Although the monitoring and analysis of dust data in the stope has been relatively mature,the monitoring data and analysis results have not been used to guide the dust reduction technology,and the dust reduction measures at this stage still cannot reach the level of intelligence.Furthermore,the high cost of dust control and the secondary pollution of some dust reduction measures have caused the problem of dust pollution in the mine to be not fundamentally solved,and the pollution phenomenon still exists for a long time.
关键词
露天矿/粉尘/产尘机理/扩散规律/降尘技术
Key words
Open-pit mine/Dust/Dust production mechanism/Diffusion law/Dust reduction technology
维普
万方数据