摘要
介绍了利用自行研制的便携式X射线荧光分析仪在大红山铜矿井下用X荧光取样分析代替人工打点取样分析 ,现场原位测量岩壁Cu、Fe品位的应用情况。采用的仪器是由2 3 8Pu同位素源、正比计数管、多道脉冲幅度分析器、便携微机系统等组成的能量色散型分析仪 ,具有自动稳谱功能。研究结果表明 :X荧光取样的原矿品位与化学分析结果相比 ,Cu相对误差在 10 %以内的合格率达到 95 % ,Fe相对误差在 5 %以内的合格率为 90 % 。
The application of self made portable XRF analyser in XRF sampling in underground mine of Dahongshan Copper Mine in place of artificial sampling to make in situ measurement of Cu and Fe grades of rock wall. The instrument is an energy dispersive analyzer consisting of 238 Pu isotope resource, direct ratio counter, multi channel pulse amplitude analyser and portable computer system, and has a function of automatic spectrum stabilization. Compared with chemical analysis, XRF sampling of raw ore has a qualification rate of 95% in Cu grade at a relative error of within 10% and 90% in Fe grade at a 5% relative error, being fully capable of meeting the requirements of mine production.
出处
《金属矿山》
CAS
北大核心
2003年第10期43-45,共3页
Metal Mine
基金
四川省青年科技基金
云南易门矿务局资助
