激光诱导击穿光谱设备在线冰铜成分检测应用进展

利用自主研发的基于激光诱导击穿光谱(LIBS)技术的激光成分分析仪对铜冶炼现场冰铜固体和熔体成分进行了在线检测,并与取样制样后实验室的X射线荧光光谱(XRF)检测结果进行了对比.分析数据为研发设备现场投用后具备对比数据的1 294炉次,包括878炉次固体冰铜和416炉次熔体冰铜.LIBS设备在线检测与取样制样后固体XR...

Application progress of online composition analysis of matte by laser-induced breakdown spectroscopy

An independently-developed laser composition analyzer based on laser-induced breakdown spectroscopy (LIBS) technology was used to realize online detection of matte,both solid and molten matte.The tested results were compared with the X-ray fluorescence spectrometry(XRF) detection results with standard sample preparation.A total of 1 294 times with comparative data after the LIBS equipment was put into operation on site.The data consisted of 878 times solid matte and 416 times melt matte.Compared with the XRF detection results after sampling,the online detection of LIBS equipment had an average absolute error of 0.61%,and an average relative error of 1.1%.The online detection performance of the LIBS equipment had been tested,the average value of the detection result range during the copper extraction process of the same furnace was 0.64%,and the average minimum error of the online detection results compared with XRF sampling test result was 0.32%.The results showed that the LIBS technology could achieve reliable online measurement of matte in different states,and its performance met the real-time and reliability requirements of the production process for element detection.The application of LIBS equipment realized the stable and reliable online detection of the melt composition in the smelting process of the metallurgical industry,which could provide the necessary foundation for fine control of the smelting production process,the metal balance optimization and information management.