目前全国地质系统开动小口径金刚石钻机270台左右，消耗金刚石钻头约有一万多个，消耗人造金刚石15万克拉，扩孔器5千多个。通过回收97个钻头，发现其收获率还是相当大的，单晶能回收15％，聚晶回收54％，按照这种比例，全国的废旧人造金刚石钻头及扩孔器可回收2万～3万克拉的单晶，和10万～13万粒聚晶，此数相当可观。为了保证生产第一 At present, the national geological system has started about 270 small diameter diamond drilling rigs, consuming about 10,000 diamond bits, consuming 150,000 karats of artificial diamonds and over 5,000 reaming devices. Through the recovery of 97 drill bits and found that the harvest rate is still considerable, single crystal can be recycled 15%, polycrystalline 54% recycling, according to this ratio, the country’s waste synthetic diamond drill bits and reamers can recover 20,000 to 30,000 Carat single crystal, and 100,000 to 130,000 polycrystalline, this number is considerable. In order to ensure the production of the first