As an inevitable product in coal mine production, dust has a wide range of sources. These dust not only have complex physical and chemical properties, but their concentration and distribution characteristics are also affected by various factors. This article aims to comprehensively and systematically study the characteristics and hazards of coal mine underground dust through fixed-point sampling and detection analysis methods. By selecting and arranging sampling points, preparing and calibrating sampling instruments, and performing specific operations during the sampling process, the accuracy of data is ensured. At the same time, based on the detection results, the concentration, particle size distribution, chemical composition, and explosiveness of dust are revealed, in order to provide effective basis for the development of targeted dust prevention measures.

coal mine underground dust  /  fixed point sampling  /  sampling detection  /  dust control  /  miner health