共查询到20条相似文献,搜索用时 78 毫秒
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对高炉炉缸和炉底的侵蚀机制、合理的炉缸结构、炉缸和炉底内衬结构及其耐火材料进行了较为全面的介绍,同时建议在高炉生产过程中采取一系列措施来提高炉缸、炉底的寿命:拥有合理的死铁层深度、炉缸高度和铁口深度的炉缸结构,可为高炉高效长寿和生产的稳定顺行奠定良好基础;根据高炉顺行情况和炉缸、炉底侵蚀状态控制好生铁成分,并采取有效措施减少碱金属等有害元素在炉内的富集及对炉缸、炉底的侵蚀;在线进行压浆能有效消除炉缸砖衬间的缝隙,提高炉缸冷却系统的冷却效果,减缓炉缸砖衬的侵蚀;加含钛物料护炉可以使侵蚀严重的炉底、炉缸转危为安,显著提高高炉寿命。 相似文献
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玻璃熔窑小炉所处位置比较狭小、温度高。小炉钢结构主要包括:小炉底板、小炉立柱、小炉碹脚梁、小炉拉条。下面介绍的比较简单的小炉钢结构主要是用轧制型钢拼制而成的。 相似文献
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该文根据高炉法钙镁磷肥的生产实践经验,对其炉的炉缸、炉腹、炉腰、炉身、炉喉等部分的形状和作用,以及内型尺寸的选定作了介绍. 相似文献
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回顾了煤气发生炉炉算在各个历史阶段的设计、开发、研制历程,介绍了炉算在小型、中型氮肥厂的实际应用情况,从炉算的高度和布风结构设计方面论述了炉算的发展趋势。 相似文献
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论述了恩德炉粉煤流化床气化工艺的特点及工艺流程,对恩德炉与固定层气化炉、温克勒炉和德士古炉进行了比较,并展望恩德炉在我国的应用前景。 相似文献
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高炉渣是高炉炼铁过程产生的主要废渣,随着中国钢铁行业的蓬勃发展,高炉渣的排放量日益增加。高炉渣的堆积不仅增加环境负担,还是一种资源浪费。为提高高炉渣的附加值,以高炉渣为吸附剂,研究了高炉渣对La3+的吸附性能。用扫描电镜、X射线荧光衍射、氮气吸附脱附仪对高炉渣的理化性质做了表征。为进一步研究高炉渣的吸附行为及机理,从动力学和热力学角度探讨了La3+在高炉渣上的吸附作用机制。实验结果表明,高炉渣颗粒分明,有微裂纹结构,是非晶态的玻璃体结构;在吸附行为实验中,实验数据分别满足准一级动力学和Langmuir等温吸附模型。 相似文献
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在钙镁磷肥高炉上喷吹煤粉的可行性分析 总被引:1,自引:1,他引:0
借鉴炼铁高炉在喷吹煤粉技术方面取得的成功经验,结合钙镁磷肥高炉与炼铁高炉相似的工作原理,分析在钙镁磷肥高炉上采用喷吹煤粉工艺路线的可行性。 相似文献
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Chuanhou Gao Jiming Chen Jiusun Zeng Xueyi Liu Youxian Sun 《American Institute of Chemical Engineers》2009,55(4):947-962
The prediction and control of the inner thermal state of a blast furnace, represented as silicon content in blast furnace hot metal, pose a great challenge because of complex chemical reactions and transfer phenomena taking place in blast furnace ironmaking process. In this article, a chaos‐based iterated multistep predictor is designed for predicting the silicon content in blast furnace hot metal collected from a pint‐sized blast furnace. The reasonable agreement between the predicted values and the observed values indicates that the established high dimensional chaotic predictor can predict the evolvement of silicon series well, which conversely render the strong indication of existing deterministic mechanism ruling the dynamics of complex blast furnace ironmaking process, i.e., a high‐dimensional chaotic system is suitable for representing the blast furnace system. The results may serve as guidelines for characterizing blast furnace ironmaking process, an extremely complex but fascinating field, with chaos in the future investigation. © 2009 American Institute of Chemical Engineers AIChE J, 2009 相似文献
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含钛高炉水淬渣在高炉煤气净化水处理中的应用 总被引:1,自引:0,他引:1
介绍了高钛高炉水淬渣比表面积大、吸附力强的特性,在此基础上对高炉煤气净化水系统进行改造,用含钛高炉水淬渣吸附高炉煤气净化水中的悬浮物从而使水得到净化处理,经处理后的水再返回高炉煤气净化系统循环使用,在投入很少资金的情况下,取得很好的经济效益。 相似文献
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大型高炉是钢铁制造过程中的重要装备,由于高炉运行过程复杂,干扰因素繁多,经常会有异常炉况发生。为及时监测异常炉况、保证高炉顺行,本文利用高炉运行数据,开发了一种基于MWPCA和高斯混合模型的算法对高炉异常过程进行监测。由于高炉运行数据存在非高斯分布和时变的特点,利用高斯混合模型改进了传统PCA监测模型的T2统计量,使算法可以适应高炉数据的独特分布特征,并加入了滑窗机制,使算法具有实时更新的能力。随后,将算法应用在华南某大型钢铁集团的真实高炉数据上,检测了算法的有效性,并将其与基础算法进行了对比分析,证明了算法在高炉异常监测能力上有所提高。 相似文献
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Chuanhou Gao Jiusun Zeng Zhimin Zhou 《American Institute of Chemical Engineers》2011,57(12):3448-3458
Very often, there are several kinds of different scale structures, such as atomic/molecular microscale, device/boundary mesoscale and working procedure/operation unit macroscale, etc., referred in the operation of a blast furnace system. However, not enough attention has been paid to the multiscale feature of the blast furnace system by traditional analytic methods which are the average ones over a fixed scale. For this reason, the current work performs a multiscale identification and further makes a dynamical analysis on the blast furnace system from the time series sets of two important components in the blast furnace hot metal, i.e., silicon content and sulfur content, collected from a pint‐sized blast furnace. The results render a strong indication of multiscale characteristic and multiple dynamics, i.e., randomicity, chaos, and limit cycle but with different rates of contribution to the whole system, contained in the blast furnace system. Furthermore, compared with the original blast furnace system, every subscale structure has lower complexity. All of these can serve as guidelines to carry out modeling, control and optimization on complex blast furnace system from the viewpoint of multiscale in the future, and may throw more light on understanding and characterizing its complex dynamics. © 2011 American Institute of Chemical Engineers AIChE J, 2011 相似文献