便携式联用技术快速鉴别铜冶炼烟尘

Rapid Identification of Copper Pyrometallurgical Dust by Combined Application of Portable Devices

铜冶炼烟尘与铜精矿由相似元素组成,通过元素种类与含量一般难以对两者进行准确鉴别。我国铜精矿进口量的日益增加及物料性质趋于复杂,为货物的通关效率及现场查验带来挑战,因此解决现场进口铜矿的固废快速筛查显得尤为重要。本文以进口典型铜精矿及主要的铜火法冶炼烟尘作为研究样品,联合使用手持式X射线荧光光谱仪和便携式X射线衍射仪对样品中的物质组成和结构特征进行解析,探索铜精矿与铜火法冶炼烟尘的主要区别点,建立了铜冶炼烟尘现场快速属性识别方法。

The elemental composition of copper pyrometallurgical dust closely resembles that of copper concentrates,making it difficult to distinguish between the two based on elemental type and content alone.This poses a substantial challenge to the efficiency of customs clearance and the inspection of imported copper materials,particularly with the increasing volume of copper concentrates entering China and the concomitant complexity in material properties.Addressing the rapid screening of solid waste from imported copper ores is of utmost importance.This study utilized typical samples of imported copper concentrates and principal copper pyrometallurgical dust for analysis.The material's composition and structural characteristics were examined using a portable X-ray fluorescence spectrometer and a portable X-ray diffractometer.The investigation focused on delineating the primary differences between copper concentrates and copper pyrometallurgical dust,culminating in the development of a swift method for attributing the characteristics of copper pyrometallurgical dust.