平型关低品位磷矿降低选矿成本的途径

• 作 者: 于兴涌 李华
• 出 处: 化工地质
• 发表日期: 1982年01期
• 关键词: 平型关 选矿比 结晶颗粒 低品位磷矿 露天开采 有用矿物 试生产 制肥 磷矿石 选别

目前我国北方已知磷矿一般品位低,制磷肥所需的矿石大多数靠南磷北调。北方有不少磷矿床储量很大,埋藏很浅,有的甚至已出露地表,适于露天开采。矿石中的有用矿物多为结晶颗粒粗大的磷灰石,容易选别富集,开发它们在技术方面一般不存在难题;但是,选矿比大。如平型关磷矿选矿比为十,因而经济上是否合算就成了这类磷矿开发的关键。前不久,我们参加了山西省平型关磷矿选矿厂试生产,对试生产的磷矿成本进行了综合考察。通过考察我们认为用此类含P_2O_5 3.44％的磷矿石选矿、制肥,只要加强企

At present, the phosphate rock in northern China is generally low in grade and most of the ore required for making phosphate fertilizer relies on the north phosphorus transfer. Many phosphorus deposits in the north are very large reserves, burial very shallow, and some have even exposed the surface, suitable for open-pit mining. Most of the useful minerals in the ore are mostly apatite with coarse crystalline particles, which are easy to separate and enrich. It is generally not technically difficult to develop them. However, the beneficiation ratio is large. Such as flat-type phosphate rock beneficiation ratio of ten, so economically cost-effective has become the key to the development of such phosphate rock. Not long ago, we participated in the trial production of the Pingxinguan phosphate ore beneficiation plant in Shanxi Province and conducted a comprehensive inspection on the cost of the phosphate rock under trial production. By examining we believe that with such P_2O_5 3.44% of phosphate ore dressing, fertilizer, as long as the strengthening of enterprises