论文部分内容阅读
我国磷矿资源据初步查明是丰而不富,且选矿难度较大。当前露无磷矿开采其矿石产量约占全国磷矿石总产量30％以上。由于露天开采的作业条件较地下开采优越,比较容易保证出矿质量和扩大直接利用的商品矿石产量,因此有利于磷肥生产的发展。但是,目前有的露天磷矿对降低矿石贫损,提高矿石质量,充分利用地下资源尚未予以高度重视,也缺少一套行之有效的管理制度,对引起贫损的原因缺乏必要的研究,因而没有及时地采取降低贫损的对策,使得有的露天磷矿的贫化率超过9～10％,矿石损失率心中无数,造成磷矿资源不应有的损失。为此对我国露天磷矿贫损管理加以研究探讨。
According to the initial identification of phosphate rock resources in China is rich and not rich, and mineral processing more difficult. The current non-phosphate ore mining ore production accounts for about 30% of the country’s total phosphate rock production. As open-pit mining conditions than the underground mining superior, easier to ensure the quality of ore and expand the direct use of commercial ore production, it is conducive to the development of phosphate fertilizer production. However, some open-pit phosphate rock has not yet attached great importance to reducing ore depletion, improving ore quality and making full use of underground resources, and lacking an effective management system, which lacks the necessary research on the causes of impoverishment The failure to take measures to reduce leanness in a timely manner led to the depletion rate of some open-pit phosphate rock exceeding 9% to 10%. The loss rate of minerals was immense, resulting in an undue loss of phosphate rock resources. Therefore, it is necessary to study and research on the management of the open pit phosphate loss in our country.