锚喷支护与传统的支护方式比较,具有节约投资,施工速度快,便于机械化等一系列优点。因此锚喷支护作为一项新技术,在井巷工程中正得到越来越多的应用。但目前在锚喷中使用的干式喷浆机存在的最大问题是回弹率高、粉尘大,尤其是粉尘高达120～630毫克/米~3,严重影响职工的身体健康。 Anchor spray support and traditional support methods compared with saving investment, construction speed, ease of mechanization and a series of advantages. Therefore, as a new technology, shotcrete and shotcrete support is getting more and more applications in the well engineering. However, the biggest problem of the dry shot blasting machine currently used in anchor spraying is that the rebound rate is high and the dust is large, especially the dust is as high as 120-630 mg / m 3, which seriously affects the health of workers.