攀矿铁精矿矿浆品位的原位EDXRF分析试验

In situ EDXRF analysis of iron ore grade

铁精矿矿浆品位原位EDXRF（能量色散X射线荧光）分析试验在攀钢选矿厂进行，矿浆中水与矿粉体积比在2／5～2／1之间，在（L×W×H=8×2×20cm）的沉淀条件下，经过9min自然沉淀，静态测量（60s）；从测量结果看出：仪器分析周期约10min，与化学分析结果的绝对误差小于0．3％，并说明铁精矿矿浆品位在线分析完全可行，这为开发新型在线铁精矿矿浆品位的EDXRF分析仪器提供了依据。

An in situ analysis was performed in Pan Gang： the volume ratio of water to ore powder in the ore slurry is between 2/5 and 2/1, under the condition of （ L × W × H = 8 × 2 × 20 cm）, static measurement （60 s） after 9-minutes natural sediment; the results indicate that the period of instrumental analysis is about 10 min and the absolute error compared with chemical analysis is less than 0.3 %. It shows that pure iron ore slurry grade on-line analysis system is feasible.