攀钢新3^#高炉开炉达产实践

对攀钢新3^#高炉（2000 m^3）年修开炉及快速达产的经验进行了总结。通过制定合理的开炉方案,开炉过程中确定合理的送风制度和装料制度,控制适宜的加风、开风口及渣铁排放进程,优化高炉操作,确保炉况稳定顺行,从而使新3^#高炉开炉顺利,并实现快速达产。     

济钢2#1750m3高炉项修开炉与达产实践

济钢对2#1 750 m3高炉进行了为期10d的项修,主项修复四段冷却壁.通过制定合理的开炉方案和充分准备,装料制度及送风后调剂合理,在开炉5 d内利用系数突破2.3 t/(m3·d),煤比达160 kg/t,实现了快速达产达效.     

湘钢750m3高炉大修开炉及达产实践

通过选择合理的开炉方式、开炉料及开炉参数，快速地降低炉温，减少冶炼铸造铁时间，适时地调整装料制度、送风制度，湘钢750m^3高炉实现了安全开炉和快速达产。     

宣钢1800 m~3高炉中修开炉快速达产实践

对宣钢4#高炉(有效容积1 800 m3)中修开炉及达产的生产操作经验进行了总结。通过对开炉前的精心准备,如清除炉缸焦炭、烘炉操作、系统试压检漏、配料及装料、布料测定等,制定详细周密的开炉方案以及合理准确的操作制度,炉况调剂准确得当,实现了高炉顺利开炉并快速达产。     

攀钢3号高炉中修开炉快速达产实践

对攀钢3#高炉开炉及快速达产的经验进行了总结,通过制定合理的开炉方案,选择适宜的送风制度和装料制度,优化高炉操作,确保炉况稳定顺行,从而使3#高炉实现了顺利开炉、快速达产。     

迁钢1号2650m3高炉喷涂后开炉达产实践

对迁钢1号高炉(2650m3)喷涂后开炉达产实践进行了总结.通过制定科学的开炉方案,采用合理的送风和装料制度,及时排放渣铁,1号高炉开炉后3日内炉况得以恢复,生产技术指标达到较高水平,实现了顺利开炉、快速达产的目标.     

山钢日照公司2#5100m3高炉开炉达产实践

山钢日照公司2~#高炉开炉前对1~#高炉开炉控制过程进行了分析研究,将2~#高炉开炉期间关键参数合理优化。通过选择合理装料制度与出铁制度,制定开炉加风方案,开炉期间风量控制合理,实现了特大型高炉开炉24 h喷煤、32.5 h富氧,全风口开炉,高炉开炉快速达产。     

包钢3#高炉中修开炉快速达产实践

文章对包钢3#高炉（2200m2）开炉及达产的生产操作经验进行了总结。在开炉生产中，采用全焦开炉，科学配料计算，优化装料方案、制定合理的操作制度，加强炉内操作和炉前出铁，实现开炉3天快速达产。     

长江钢铁1250m~3高炉开炉及达产实践

针对长江钢铁1 250 m3高炉的开炉准备工作、开炉参数的选择、填充配料等方面的问题,对开炉及达产过程进行了分析总结。通过精细准备,合理控制操作参数以及调整后续过程,使得此次生产实践过程在工艺控制方面基本做到了平稳有序,实现了顺利开炉、快速达产的预定目标。     

宣钢2500m^3高炉开炉与达产实践

对宣钢2500m3高炉开炉及达产的生产操作经验进行了总结.通过科学、精心的开炉准备和合理的开炉方案制定,出铁后第5大达产,实现了安全顺利开炉和快速达产.     

Effects of Ce3＋ , Nd3＋ , Gd3＋, Tb3＋ and Lu3＋ ions on Formation of CaCO3

The effects of lanthanides at various concentrations on CaCO3 crystal growth were studied by X-ray diffraction (XRD), infrared spectra (IR), X-ray photoelectric energy spectra (XPS) and inductively coupled plasma mtms spectrometry (ICP-MS). It was found that the calcite, a stable form of CaCO3 in thermodynamics, is the predominant species. The research indicates that lanthanide ions (Ln3 ) can partly substitute the Ca2 in the lattice of CaCO3 crystals, and change the crystal characterization and direct the ordinal growth of CaCO3 crystals.     

3-Hydroxy-3-methylglutaric aciduria: deficiency of 3-hydroxy-3-methylglutaryl coenzyme A lyase

Basic principles are offered to support the suggestion that use of special care space must be made with a mind toward prevention of obsolescence. Certain conventional design features should be examined critically and decisions made as to their applicability to the needs of a particular program.     

Photoluminescence of Dy~(3 ) Ions in Ba_3La(BO_3)_3

Dy3 isanimportantactivator .Ithasbeenexten sivelyappliedinmanyluminescentmaterials .Inre centyears ,someresearchershavestudiedthespec trumcharacteristicsofluminescentmaterialsdopedDy3 [1～ 6 ] andhaveobtainedsomemeaningfulre sults .InordertodevelopnewfluorescentmaterialsanddiscussthephotoluminescentruleofDy3 inthecomplexborate ,thispaperstudiesthephotolumines centcharacteristicsofDy3 inBa3La(BO3) 3host ,anddiscussestheinfluenceofthecharge to radiusratio(z/r)ofrareearthionRE3 andthecon…     

Dy^3＋在（LaO）3BO3和（GdO）3BO3中的光致发光

研究了Ｄｙ＾３＋在（ＬａＯ）３ＢＯ３和（ＧｄＯ）３ＢＯ３中的光致发光;探讨了基质晶体结构、稀土离子ＲＥ＾３＋的电荷半径比（Ｚ／ｒ）和Ｄｙ＾３＋含量对（Ｄｙ＾３＋）发光强度及发光颜色的影响;分析了（ＧｄＯ）３ＢＯ３中Ｂｉ＾３＋对Ｄｙ＾３＋发光的敏化作用及Ｄｙ＾３＋４Ｆ９／２→＾６Ｈ１３／２超灵敏跃迁发射的自身浓度猝灭机理。     

Ca3La(BO3)3中Dy3+的光致发光

研究了Ca3La(BO3)3基质中Dy^3 的发射光谱和激发光谱。结果表明，强的激发峰值为351nm、367nm和386nm；Dy^3 的488nm和578nm发射的最佳浓度均为xDy=0．03；Dy^3 发射的黄光和蓝光强度比(用Y／B表示)随Dy^3 浓度的增加而逐渐增大；Dy^3 的^4F9/2→^6H15/2、^6H13/2跃迁发射的浓度猝灭机理均为电偶极-电偶极相互作用；同时还探讨了Ce^3 对Dy^3 发光的敏化作用。     

Optical Spectroscopy of Er^3＋ and Er^3＋/Yb^3＋ Co-doped Bi2O3-GeO2-B2O3-ZnO Glasses

The （60 - x）Bi2O3 - xGeO2-30B2O3-10ZnO （x = 5, 10, 20, 30 molar percent） glasses doped with Er^3＋ and Er^3＋/Yb^3＋ were fabricated using the melting method. The thermal stability of the glasses was studied with their DTA curves. The results show that the difference between the glass transition temperature and the crystallization onset temperature increases with the increase of GeO2 content, indicating that the thermal stability of the glass has become better. The absorption spectra were recorded and the stimulated emission cross sections were calculated using the McCumber theory. The Ω2, O4, and Ω6 parameters,the transition probability, the radiative lifetime, and the fluorescence branch ratio of Er^3＋ for optical transition were calculated from their absorption spectra in terms of reduced matrix U^（t）（λ = 2, 4, 6） character for optical transitions. The infrared emission of Er^3＋ was measured upon excitation with 970 nm light and the full width at half-maximum （FWHM） was estimated from the emission spectra. The pumping efficiency and the intensity of the emission at the 1.54 μm band of Er^3＋ were enhanced considerably by co-doping Yb^3＋ .