针对板定梁塔煤矿回风斜井穿越1-2煤层采空区、巷道壁破碎、漏风通道发育、并处于矿井高负压区、回风流中CO体积分数严重超限的情况,采取向巷道壁喷涂和采空区压注改性聚脲酸酯泡沫材料相结合的堵漏风措施,有效地封堵了漏风通道,抑制了CO涌出,回风流中CO体积分数降至安全限度内,取得了良好的治理效果,保障了安全生产。实践证明该方法应用效果显著。 Aiming at the situation that the return air inclined shaft of the slab tower of mine passes through the gob of the 1-2 coal seam, the wall of the roadway is broken and the air leakage channel develops and is in a serious over-limit of CO volume fraction in the high negative pressure area of ​​the mine and the return air flow, Wall spray and goaf injection pressure modified polyurea foam combined with the plugging wind measures to effectively block the air leakage channel, inhibit the CO emission, return air flow in the CO volume fraction fell to safety limits, Has achieved good governance effect, to protect the safety in production. Practice has proved that the method is effective.