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基于谱线筛选的矿物灰分快速检测研究
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作者 常诚 于勇海 芦婷婷 《世界有色金属》 2020年第17期111-112,共2页
谱线筛选法在矿物灰分快速检测中发挥着重要作用,在本次研究中,本文详细介绍了谱线筛选矿物灰分检测的基本条件,并对其中的参数选择要求以及模型评价方法进行分析;之后进行实验分析,对谱线筛选方法的应用效果进行分析。从本文的研究结... 谱线筛选法在矿物灰分快速检测中发挥着重要作用,在本次研究中,本文详细介绍了谱线筛选矿物灰分检测的基本条件,并对其中的参数选择要求以及模型评价方法进行分析;之后进行实验分析,对谱线筛选方法的应用效果进行分析。从本文的研究结果可知,谱线筛选方法满足矿物灰分快速检测的要求,值得推广。 展开更多
关键词 谱线筛选 矿物灰分 快速检测
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M■ssbauer spectroscopic studies the characterization of three China coal and the corresponding fly-ashes and bottom ashes
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作者 姚多喜 支霞臣 《Journal of Coal Science & Engineering(China)》 2006年第2期70-74,共5页
Three fresh China coals (lignitie, bituminite and anthracite) from different geological origin and the corresponding fly and bottom ashes were studied by room temperature(RT) Mossbauer spectroscopy(MS). The iron... Three fresh China coals (lignitie, bituminite and anthracite) from different geological origin and the corresponding fly and bottom ashes were studied by room temperature(RT) Mossbauer spectroscopy(MS). The iron-bearing minerals were characterized to be mainly pyrite in all coal samples by the hyperfine parameters.Suphate(FeSO4·nH2O) was found in bituminite and anthracite coal.The MSssbauer spectra of the fly and bottom ashes as a result of pulverised coal combustion(PCC) in Xiaolongtan,Shuicheng and Luohuang Power Plants are comprised of superimposed sextets and doulets of oxides includes maghemite(γ-Fe2O3), magnitite(Fe3O4), haematite(α-Fe2O3), magnesioferite (MgFe2O4), Fe^3+/Fe^2+ -mullite, Fe^3+ -glass silicate and metallic iron. The studies also show that iron-bearing minerals in coals are largely dependant on geological regions and coal rank, the composition of the corresponding fly and bottom ashes will not only depend on the type and mineralogy of the feed coal but also on the local nature of combustion. 展开更多
关键词 Mossbauer spectra COAL fly and bottom ash minerals
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COMPARATIVE RESEARCH ON THE CHARACTERISTICS OF THE FLYASH FROM COAL REFUSE-FIRED AND COAL-FIRED POWER PLANTS 被引量:1
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作者 余继峰 韩作振 王秀英 《Journal of Coal Science & Engineering(China)》 2000年第1期63-67,共5页
The physical,chemical and mineral facies properties of the flyash from Xiezhuang Coal Refuse Fired Power Plant have been studied by means of naked eyes,microscope,chemical composition analysis and XRD analysis,and com... The physical,chemical and mineral facies properties of the flyash from Xiezhuang Coal Refuse Fired Power Plant have been studied by means of naked eyes,microscope,chemical composition analysis and XRD analysis,and compared with that of the flyash from Taian Coal Fired Power Plant.The result shows that the flyash from coal refuse fired power plant is of better quality in making construction items,for being brighter in color,fine and high activity.Some ways of comprehensive utilization of the ash have been suggested in this paper. 展开更多
关键词 FLYASH coal refuse fired power plant mineral facies XRD
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