矿山和采石场的大块必须破碎，以便送至废石场堆放或作F一步的选矿处理。以往，大块部以凿岩爆破方式或重量足够的落锤进行破碎。用于破碎混凝土和大块岩石的首台高能碎石器是风动的，冲击能量受制于阀和风压，但能破碎尺寸较小、抗在强度较低的大块。落锤或碎石器要装配在液压 The large blocks of mines and quarries must be crushed so that they can be taken to a waste rock or piled up for ore dressing. In the past, chunks were broken by means of a rock blasting method or a drop weight of sufficient weight. The first high-energy stone breaker used to crush concrete and large rocks was airborne, with impact energy controlled by valves and wind pressure but capable of breaking smaller, less-massive blocks. Drop hammer or stone device to be assembled in hydraulic