选冶试验样品配制方法和检验

On Mineral Processing Sample's Proportioning and Homogeneity Testing

配样是开展选冶试验的基础,其合理性显著影响选冶试验结果的可靠性。文章探讨了选冶试验样品配制原则、程序和计算公式。选冶试验配样应遵照审阅地质资料和采样设计书、研究各样品的物质组成、制定配样方案、样品制备和检查配样合理性等五个步骤进行。在配样过程中,每一个编号样品所配入的样品质量应当与其代表的矿块储量成正比。配制的试验样品应与目标矿石性质一致,包括矿石品位一致、矿物组成一致、矿物原生粒度一致和岩石性质一致。混匀样品是避免抽样误差的关键因素。文章还介绍了样品混匀性检验的计算方法——方差分析法。

Ore samplesr proportioning and blending are the basis of ore dressing and smelting test, the rationality of which has a marked effect on final test results. The paper discusses the principles,procedures and formulas for samplesr proportioning and blending of ores to be tested. A reasonable procedure including five steps is suggested as following ： reviewing of geological report and sampling record, process mineralogy study, proportioning calculation, sample blending, and sample evalua-tion. It is wortli noting that tlie incorjDoration of diferent ores in final sample should be in proportion to their representatives of mineral reserves respectively. And he prepared samples should represente the characters of ores in ore body,particularly in grades,mineral compositions, size distributions and without external pollution, because fully blending of samples is a key to avoid sampliThe paper also introduces variance analysis for homogeneity testing of prepared samples.