溜井的防尘工作是我矿多年来通风防尘工作的一项难题。1977年我矿西坑二区总结近几年来溜井防尘工作的经验,革新成功溜井盖板,并装配上自动喷雾,有效的控制尘源的扩散,使倒矿时的粉尘浓度由原来的10～45毫克/米~3下降到10～2.5毫克/米~3。在不倒矿时基本上 Chute dust prevention work is mine mine ventilation and dust prevention over the years a difficult problem. In 1977, we summarized the experience of dust prevention work in the past several years in the mine pit Xikeng II, innovated the success of the slip-out cover and equipped with automatic spray to effectively control the spread of the dust source so as to reduce the dust concentration in the ore pouring from the original 10 ~ 45 mg / m ~ 3 down to 10 ~ 2.5 mg / m ~ 3. Basically when not dumping mine