爆炸能分配比值对粉矿产出率的影响

The Effect of the Partition Ratio of Explosive Energy on the Fine Productivity

为进一步评价膨胀能（Ｅｂ）在破岩过程中所起的作用，进行了爆破破碎实验，研究了冲击能（Ｅｓ）与膨胀能（Ｅｂ）分配比值的变化对粉矿产出率的影响。实验结果表明，粉矿产出率的变化趋势直接受Ｅｓ／Ｅｂ比值变化的影响，证实了Ｅｂ中的部分能量以冲击加载的形式在破岩过程中起到了一定的作用。

To further evaluate the function of bubble energy(Eb) in the rock fragmentation process,a test on fragmentation by blasting was conducted and the effect of the change in the ratio of shock energy (Es) to Eb on fine productivity was investigated.The results showed that the change in the ratio of Es to Eb directly affected fine productivity,and verified that part of Eb played a role in the rock breakage with impact loading.