为改变弓长岭铁矿采矿生产中二次破碎的落后方法,我们研制了矿石破碎弹,以满足生产中的几项要求:①破碎0.5～1米~3的矿石块;②爆炸时无破片;③可在工棚内的运输车厢中爆破;④成本低。 (一)设计原理根据爆轰理论,爆炸能在空间的分布主要取决于起爆雷管的位置、装药的几何形状、外壳的性质等因素。由此,我们将药柱设计成图 In order to change the backward method of secondary crushing in the mining of Gongchangling Iron Mine, we developed the ore crusher to meet several requirements in production: ① Broken ore blocks of 0.5 ~ 1m ~ 3; ② No fragments during explosion ; ③ blasting in transport sheds in the shed; and ④ low cost. (A) Design Principles According to the detonation theory, the explosion can be distributed in space mainly depends on the location of the detonation primer, the geometry of the charge, the nature of the shell and other factors. As a result, we design the drug into a map