1 改进动机矿石卸入溜井,利用井下粗破碎机进行破碎,但有时由于卸入了大块矿石粗破碎机被堵塞,此时需使用碎石机破碎或进行二次爆破。由于溜井短,二次爆破时间一长,溜井就会被卸满,这时就要在井口周围清出一作业场地,然后用电铲或推土机将矿石推入溜井,这是一种徒劳的作业。为了不因二次爆破、清出场地后的推矿作业以及破碎机停 1 to improve the motive ore discharged into the chute, the use of downhole crusher crusher, but sometimes due to the unloading of large crude ore crusher is blocked, this time need to use crusher crushing or secondary blasting. Due to the short length of the runway and the long time of secondary blasting, the slippery well will be unloaded. At this time, it is necessary to clear a working site around the wellhead and push the ore into the slippery well using a power shovel or bulldozer. This is a futile work . In order not to be due to the second blasting, clear the site after the shovel operation and crusher stop