综采工作面粉尘的主要来源是割煤、清煤和移架。采煤机的割煤方式对工作面的呼吸性粉尘分布有较大影响。当主要尘源来自割煤与清煤时,逆风割煤顺风清煤比较有利;当主要尘源来自顶板时,顺风割煤逆风清煤较有利。工作面的漏风对呼吸性粉尘的分布及扩散有很大影响。当主要尘源为割煤和清煤时,从采空区向工作面的漏风对降低人行空间的呼吸性粉尘有利;当主要尘源来自顶板与采空区时,从工作面向采空区漏风对降低工作面的呼吸性粉尘浓度有利。 The main sources of dust in fully mechanized mining face are cutting coal, clearing coal and moving shelves. Shearer coal cutting method on the face of the respiratory dust distribution has a greater impact. When the main source of dust comes from cutting coal and clearing coal, it is more advantageous for coal mined in the windward and downwind to clean the coal when the main dust source comes from the roof, so it is more advantageous to cut down the coal in the windward coal mine by the wind. Air leakage on the face has a significant impact on the distribution and spread of respiratory dust. When the main dust source is coal cutting and coal cleaning, the air leakage from the goaf to the working face is beneficial to reduce the respirable dust in the pedestrian space; when the main dust source comes from the roof and the goaf, air leakage from the working face to the goaf To reduce the face of respiratory dust concentration is beneficial.