Design and application of exhaust ventilation and dust removal system in driving face of rock roadway

In order to control the dust hazard in driving face of rock roadway in coal mine, taking Hongliulin Coal Mine of Shanxi Coal and Chemical Industry Group Co., Ltd., as the engineering background, using the numerical simulation method, the law of dust migration under the conditions of pressure and exhaust ventilation was analyzed and studied respectively, and the exhaust ventilation and dust removal system was designed according to the field production conditions.The practice shows that the removal efficiency of total dust and respirable dust on driving location reaches 96.01% and 92.02% respectively, the removal efficiency of total dust and respirable dust removal at 10 m away from the end of the machine reaches 99.06% and 97.47% respectively, and significant dust removal effect has been achieved.