文档介绍：自动矿物分析系统的统计误差分析
李波,梁冬云,张莉莉,洪秋阳,李美荣,蒋英
广东省资源综合利用研究所,稀有金属分离与综合利用国家重点实验室,广东省矿产资源开发和综合利用重点实验室,广州510650
摘要:本文通过简化假设,提出了工艺矿物学中矿物体积百分含量p、统计量n与相对误差E的数学模型。对于给定目标矿物的体积百分含量、统计颗粒数和置信度,可以估算出目标矿物的的测量误差。采用四种矿物调配成已知含量的样品,用于验证自动矿物分析系统的测量精度。验证实验表明,当统计量越大时,不同含量的矿物的测量值均向理论值收缩,反之统计量变少时其测量值越偏离理论值,造成统计误差增大。通过对统计量的选择,可以实现对不同品位矿石的工艺矿物学参数的准确测量。
关键词:工艺矿物学;MLA;统计误差
中图分类号:TD912 文献标识码:A
The Statistical Deviation Analysis of Automatic Process Mineralogy
LI Bo,LIANG Dongyun,ZHANG Lili,HONG Qiuyang,LI Meirong,JIANG Ying
Guangdong Institute of prehensive Utilization, StateKey Laboratory of Rare Metals Separation prehensive Utilization, The Key Laboratory for Mineral Resources R&D prehensive Utilization of Guangdong, Guangzhou 510650, China
Abstract:A mathematical model of volume percentage of mineral(p), statistic(n)and relative error(E) in MLA analysis is proposed by simplified measurement error can be estimated by given volume percentage of the target minerals, statistical number of particles and confidence kinds of pure minerals are formulated as the sample with position,to verify measurement accuracy of automatic mineralogy experimental results show that when the statistic e larger,the measured values of different minerals get closer to the theoretical the other hand,when the statistic e less,the measured value deviate even further from the theoretical