Development of a Laboratory Cement Quality Analysis Apparatus Based on Laser-Induced Breakdown Spectroscopy
Development of a Laboratory Cement Quality Analysis Apparatus Based on Laser-Induced Breakdown Spectroscopy
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基于激光诱导击穿光谱的实验室水泥质量分析仪的研制
DOI：
10.1088/1009-0630/17/11/01
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发表时间：
2015
影响因子：
1.7
通讯作者：
Jia Suotang
中科院分区：
文献类型：
--
作者：
Fan Juanjuan;Zhang Lei;Wang Xin;Li Yufang;Gong Yao;Dong Lei;Ma Weiguang;Yin Wangbao;Jia Suotang
水泥化学成分和熟料配比值的测定在水泥厂中起着重要作用，是优化工艺控制和产品质量评估的一部分。在本文中，实验室激光诱导击穿光谱（LIBS）装置主要包括一个密封的光学模块和一个分析室已被设计用于水泥厂的现场质量分析的可能应用。重点介绍了LIBS装置、密封光路、温控光谱仪、样品保持器的结构和工作原理，为减小基体效应而建立的校正模型，以及为克服“漂移”障碍而提出的校正方法。实验室测量结果与传统方法测量结果吻合较好。氧化物分析的绝对测量误差在0.5%以内，比值的绝对测量误差在0.02 ~ 0.05之间。实验结果表明，该仪器能对水泥进行可靠、准确的成分分析和工业分析，适合于水泥厂的应用。
Determination of the chemical composition of cement and ratio values of clinker plays an important role in cement plants as part of the optimal process control and product quality evaluation. In the present paper, a laboratory laser-induced breakdown spectroscopy (LIBS) apparatus mainly comprising a sealed optical module and an analysis chamber has been designed for possible application in cement plants for on-site quality analysis of cement. Emphasis is placed on the structure and operation of the LIBS apparatus, the sealed optical path, the temperature controlled spectrometer, the sample holder, the proper calibration model established for minimizing the matrix effects, and a correction method proposed for overcoming the ‘drift’ obstacle. Good agreement has been found between the laboratory measurement results from the LIBS method and those from the traditional method. The absolute measurement errors presented here for oxides analysis are within 0.5%, while those of ratio values are in the range of 0.02 to 0.05. According to the obtained results, this laboratory LIBS apparatus is capable of performing reliable and accurate, composition and proximate analysis of cement and is suitable for application in cement plants.