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荆襄矿务局刘冲磷矿矿石质量较好(近年地质品位都在29％以上)、交通方便,产品供不应求。然而,现有工业储量已经濒于枯竭,只能维持5～6年。有人根据日前实行精料政策的现状,片面追求提高出矿品位,并将其与企业盈利、职工奖金联系起来。对此,本文提出以下看法。 一、对资源的影响 1987年我矿生产出矿品位为28.87％(地质品位29.69％),产量432722吨,贫化率2.76％。按此指标推算,若将出矿品位改为28％,29％,仍保持原来产量,则贫化率分别为6.71％、2.74％。可见,出矿品位差一
Jing Liu Mining Bureau Liu Chong phosphate ore ore quality is good (in recent years, geological grade are more than 29%), accessibility, product demand. However, the existing industrial reserves have been on the verge of drying up and can only last 5-6 years. Some people based on the implementation of fine materials policy status quo one-sided, one-sided pursuit of raising the ore grade, and its business profits, employee bonuses linked. In this regard, this article made the following observations. I. Impact on Resources In 1987, mine produced 28.87% of ore grade (geological grade 29.69%), output of 432722 tons, and depletion rate of 2.76%. Calculated on the basis of this indicator, if the ore grade is changed to 28% and 29%, the original production will still be maintained, then the depletion rates will be 6.71% and 2.74% respectively. Visible, one bit out of the mine