CAJ | 학술논문

为克服自吸收效应对炉渣样品定量分析结果的影响，基于快速模拟退火算法的优化过程，结合等离子体发射光谱的基本理论，发展了一种基于多种粒子发射谱线的自吸收校正算法，给出了该算法的流程图。利用前述自吸收校正算法分别对精炼渣和高炉渣样品的激光诱导等离子体发射光谱强度进行校正，并结合无标分析法，对比分析了自吸收校正算法对样品成分定量分析结果的影响。对比自吸收校正前后的Bo-ltzmann图可以看出，经自吸收校正后，等离子体中各粒子的温度均稳定在11600K左右，结果明显趋于一致。利用自吸收校正后同种粒子的等离子体光谱构建的Boltzmann图中，除一组数据外，其他数据在Boltz-mann图中的截距基本一致。利用经自吸收校正后的谱线，对两种炉渣样品成分进行定量分析的结果表明：对于精炼渣，MgO的定量分析结果精度不高，若不分析MgO的含量，则CaO ，Al2O3和SiO2等成分定量分析结果的相对误差会明显降低；对于MgO含量为8.49％的高炉渣样品，Al2 O3定量分析结果的精度最高，相对误差为2.38％，M g O最低，相对误差为28.27％，但基本可以反映出该成分在样品中的含量。
위극복자흡수효응대로사양품정량분석결과적영향，기우쾌속모의퇴화산법적우화과정，결합등리자체발사광보적기본이론，발전료일충기우다충입자발사보선적자흡수교정산법，급출료해산법적류정도。이용전술자흡수교정산법분별대정련사화고로사양품적격광유도등리자체발사광보강도진행교정，병결합무표분석법，대비분석료자흡수교정산법대양품성분정량분석결과적영향。대비자흡수교정전후적Bo-ltzmann도가이간출，경자흡수교정후，등리자체중각입자적온도균은정재11600K좌우，결과명현추우일치。이용자흡수교정후동충입자적등리자체광보구건적Boltzmann도중，제일조수거외，기타수거재Boltz-mann도중적절거기본일치。이용경자흡수교정후적보선，대량충로사양품성분진행정량분석적결과표명：대우정련사，MgO적정량분석결과정도불고，약불분석MgO적함량，칙CaO ，Al2O3화SiO2등성분정량분석결과적상대오차회명현강저；대우MgO함량위8.49％적고로사양품，Al2 O3정량분석결과적정도최고，상대오차위2.38％，M g O최저，상대오차위28.27％，단기본가이반영출해성분재양품중적함량。
In order to overcome the influence of self-absorption on quantitative analysis ,the optimizing process of very fast simu-lated annealing algorithm was studied .According to basic theory of plasma emission spectrum ,a new algorithm for self-absorp-tion correction based on multi-particles spectra was proposed ,and the algorithm flowchart was given .With the self-absorption correction algorithm mentioned above ,the spectra of refining slag and blast furnace slag were corrected .The effect of self-ab-sorption correction on the quantitative analysis results was analyzed based on calibration free method .Comparison of Boltzmann plots before and after self-absorption correction indicated that the plasma temperatures calculated with spectra after self-absorp-tion correction tended to be uniform ,and remained stable around 11 600 K .The Boltzmann plots constructed with plasma spectra of the same particle after self-absorption correction indicated that the intercepts were almost the same except for one group data . With calibration free method and spectra after self-absorption correction ,the contents of components in slag were analyzed .For refining slag ,quantitative analysis precision of MgO was low .If ignoring the existence of MgO ,the relative errors of quantita-tive analysis results of CaO ,Al2O3 and SiO2 were much smaller .For blast furnace slag in which the content of MgO was 8.49% ,the relative error of quantitative analysis result of Al2O3 was 2.38% ,which was the smallest .And the relative error of quantitative analysis result of MgO was 28.27% ,which was still the biggest .