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针对钒钛磁铁精矿烧结指标较差、烧结速度慢、利用系数低的特点,研究提高钒钛磁铁烧结矿产、质量的有效途径。通过添加活性石灰、燃料二次分加以及提高料层厚度等方法进行试验研究。结果表明:在一定范围内配加活性石灰,可使烧结矿转鼓强度提高5.54%~6.74%,成品率提高7.12%~10.65%,烧结矿增产62.11%~107%;燃料二次分加技术可使烧结速度提高6.7%,成品率提高3.7%;对于钒钛磁铁精矿烧结,其料层厚度控制在700 mm较为合适。改进方法对钒钛磁铁精矿烧结具有较好的强化效果,其可为在实践中提高钒钛磁铁烧结矿的产、质量提供理论依据。 相似文献
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本文着重介绍了在攀钢1号、2号烧结机上实行燃料二次分加工艺后的情况。实践证明:钒钛磁铁精矿烧结采用燃料二次分加工艺,具有较显著的增产效果,也有节能效果。 相似文献
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烧结燃料二次分加工业性试验 总被引:1,自引:1,他引:0
介绍了在攀钢现有生产条件下进行的燃料二次分加工业性试验情况。试验证明:钒钛磁铁精矿烧结生产中采用燃料二次分加工艺,具有明显的增产,节能效果。 相似文献
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针对攀钢烧结的具体情况,在实验室进行了不同度对高钛型钒钛磁铁精矿烧结影响的系列试验研究。结果表明,目前攀钢生产的碱为1.7的烧结矿强度差,成品率低,其烧结综合指标最差,而碱度为1.5和1.9的烧结指标最好。 相似文献
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谢大吉 《Canadian Metallurgical Quarterly》2011,21(2)
阐述了基于PPTP的VPN(Virtual Private Network)的相关概念、工作原理以及在阿姆瑞特防火墙上的具体实现. 相似文献
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电子商务流程的易变性对工作流系统提出了增加柔性的要求.文章提出了一种基于电子商务的柔性工作流系统结构,并给出了其在电子商务中的一个具体应用网上购物的例子. 相似文献
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通过对紫铜基体采用超音速喷涂自溶性合金并进行热处理,使紫铜与自溶性合金界面产生微冶金结合区,从而增强结合力。 相似文献
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Ren Rui Zhao Beijun Zhu Shifu He Zhiyu Wang Ruilin Wen Cai Ye Linsen Zhong Yuhang Zhu Xinghua 《中国稀土学报(英文版)》2006,24(Z1)
The surface treatments on CdSe wafers were studied by means of SEM, XPS and micro-current test instrument. The relations between electrical properties of CdSe wafers and surface topography, composition and structure were analyzed. The results show that the change of surface composition by etching is beneficial to decrease leakage current. Meanwhile, the increase of oxygen on surface caused by passivation can largely decrease leakage current. When passivating time is 40 min, the wafers surface appears smooth and compact, which will decrease the density of surface state, the optimal electrical property of the wafer is therefore obtained. 相似文献
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Comments on J. Radford's (see record 1974-26503-001) reflections on introspection as event and process and argues that they reflect prevalent misconceptions and distortions of the behaviorist view of the status of introspection in psychological inquiry. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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《Canadian Metallurgical Quarterly》1954,9(2):77
Alist of 11 "troublesome, unanswered questions about gifted children, questions for which the lack of experimental answers is probably directly interfering with such children's receiving optimum guidance in homes, schools, and the community." (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献