露天煤矿扬尘机理及对策

Dust raising mechanism and countermeasures in open-pit coal mine

在露天煤矿生产过程中会产生大量粉尘,污染矿区气体环境,损害矿区内作业人员身体健康,影响采矿作业效率及矿山企业形象,防尘工作是矿区环保工作的重要内容之一。通过分析露天煤矿在钻孔、爆破、采装、运输、排土各个环节的扬尘产生机理,提出了钻机增加除尘器、大爆破前洒水及水封爆破、运输路面除尘、储煤场构建防风抑尘墙等露天矿山粉尘污染的防治措施。

In the production process of open-pit coal mine,a large amount of dust will be generated,which will pollute the gas environment in the mining area,damage the health of operators in the mining area,and affect the mining operation efficiency and mining enterprise image.Dust prevention is one of the important contents of environmental protection in the mining area.This article analyzes the dust generation mechanism of open-pit coal mine in various links of drilling,blasting,mining and loading,transportation and soil discharge,and puts forward the prevention and control measures of open-pit coal mine dust pollution,such as adding dust collector to drilling rig,watering and water seal blasting before large blasting,dust removal on transportation road surface,building wind and dust suppression wall in coal storage yard.