几年来,在我矿新建的破碎系统堆积了大量的超过鄂式破碎机进料口尺寸的大块,原一直采用硝铵炸药或浆状炸药进行二次破碎。在二次破碎过程中,不但振动大,飞石多,而且危及人身设备安全,影响正常生产。为此,我们引进了静态爆破新技术。静态爆破是一种新型的岩石及混凝土等介质的破碎方法,是控制爆破技术的又一发展。它的破坏作用完全是靠静力作用,即在被破碎介质炮孔内,药剂的化学变化和物理 In recent years, a large number of chunks larger than the size of the jaws of the jaw crusher have been accumulated in the newly built crushing system in our mine. The original crushing of ammonium nitrate explosives or slurry explosives has been carried out for a long time. In the second crushing process, not only vibration, flying more than stone, but also endanger the safety of personal equipment, affecting normal production. To this end, we introduced a new static blasting technology. Static blasting is a new method of crushing rock and concrete media and is another development of controlled blasting technology. Its destructive effect is entirely by the static effect, that is broken media hole, the chemical changes in the chemical and physical