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向山硫铁矿和铜陵有色公司等矿山,在井下作业时,向炮孔装药过程中,若有药粉漏出,往往未经引爆,炮孔内就有大量黄烟冒出,或燃烧着的炸药喷出,甚至发生爆炸,常常导致重大事故的发生。向山硫铁矿1976年2月和1980年4月,曾两次发生这方面的事故,造成经济损失达20多万元。不仅严重地影响了生产,并威胁着工人的生命安全。为了避免事故的发生,及时采取预防措施,我们对硫铁矿石的有关性能进行了试验和研究。 (一)碴铁矿石性质试验
To the mountains and iron ore and Tongling Nonferrous Mining Company and other mines, underground operation, the blasting process, if there is leakage of powder, often without detonation, the gun hole there is a large number of yellow smoke, or burning explosive spray Out, or even an explosion, often lead to major accidents. Xiangshan iron ore in February 1976 and April 1980, there have been two accidents in this area, resulting in economic losses of more than 20 million. Not only seriously affected the production, but also threatened the safety of workers. In order to avoid accidents and timely preventive measures, we conducted tests and studies on the relevant properties of pyrite. (A) ballast iron ore nature test