To explore the effects of downwind and upwind coal cutting on dust pollution in a fully mechanized mining face, the airflow-dust migration was simulated by using ANSYS-FLUENT software, and the follow-up spraying dust control method was optimized according to the differences in dust concentration distribution during downwind and upwind coal cutting. The results show that during downwind and upwind coal cutting, the average airflow velocity of the fully mechanized mining face is about 1.053 m/s. During downwind coal cutting, the dust generated by the shearer mainly pollutes the mining area and the area within 0–50 m on its downwind side, while the dust generated by the advancing support mainly pollutes the mining area and the sidewalk area within 0–20 m on the downwind side of shearer. During upwind coal cutting, the dust generated by the shearer mainly pollutes the vicinity of the drum and the area within 0–45 m on its downwind side, while the dust generated by the advancing support mainly pollutes the sidewalk area within 0–30 m on the downwind side of shearer. In view of the differences in dust concentration during downwind and upwind coal cutting, the dust concentration in the working face was divided into four areas and the follow-up spraying dust control method was optimized. The field measurement results indicate that compared with the original spraying facility, the optimized opening mode raises the average dust removal rates of total dust and respirable dust in the working face by 52.1% and 43.8% during downwind coal cutting and by 53.6% and 42.3% during upward coal cutting.

为了探究顺风和逆风切煤对综采工作面粉尘污染的影响，采用ANSYS-FLUENT软件模拟了气流-粉尘迁移，并根据不同之处优化了后续喷粉控制方法。顺风和逆风采煤过程中粉尘浓度分布。结果表明，在顺风和逆风采煤过程中，综采工作面的平均气流速度约为1.053 m / s。顺风采煤过程中，采煤机产生的粉尘主要污染矿区及其顺风侧0-50 m内的区域，而超前支架产生的粉尘主要污染矿区和0-20范围内的人行道m在采煤机的顺风侧。在迎风切煤时 采煤机产生的粉尘主要污染滚筒周围及其下风侧0-45 m内的区域，而前进支撑产生的尘埃主要污染采煤机下风侧0-30 m内的人行道区域。针对顺风切煤和逆风切煤过程中粉尘浓度的差异，将工作面粉尘浓度分为四个区域，并对后续的喷雾粉尘控制方法进行了优化。现场测量结果表明，与原来的喷涂设备相比，优化的开孔方式使顺风采煤工作面总粉尘和可吸入粉尘的平均除尘率分别提高了52.1％和43.8％，分别提高了53.6％和42.3％。在向上采煤期间。