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根据高炉冶炼理论,结合具体检测条件,建立高炉无料钟布料和软熔带应用数学模型。在实践中,应用该数学模型寻求高炉生产与布料及软熔带特性等关系,便于分析指导控制生产。 相似文献
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The burden descent in the blast furnace throat affects the radial ore-to-coke ratio, which is directly related to the gas distribution and chemical reactions in the furnace. Herein, the layer structure and the radial ore-to-coke ratio of the burden bed under uniform and nonuniform burden descent are studied numerically by the discrete element method. Two kinds of nonuniform descent are considered, where the descent rate in the furnace center is greater than the descent rate at the wall or vice versa. The descent is realized by deleting particles in virtual boxes of different sizes at the lower end of the simulated domain. The results show that the ore-to-coke ratio decreases where the descent rate is low and increases where the descent rate is high. For a burden profile of the “platform + hopper” type, a faster burden descent in the center has a much stronger influence on the radial ore-to-coke ratio distribution than the case with faster descent at the wall. The size difference between the ore and coke particles and the charging matrix are also found to play a role in the influence of the burden descent on the distribution of the ore-to-coke ratio. 相似文献
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高炉炉料结构的研究及其优化配料数学模型的建立 总被引:1,自引:0,他引:1
以高炉炼铁工艺计算和高炉炉料结构理论为基础,结合在炉料结构方面的最新科研成果,建立一套高炉优化配料模型,并利用软件技术开发了相应的炉料数据库、专家数据库及其优化配料的数学模型,对宝钢高炉的配料数据进行验算,结果表明建立的模型是合理可行的.该模型能够快速得到满足其约束条件的优化配料方案,优化后配料方案的吨铁成本比实际生产采用的配料方案降低0.44%. 相似文献
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无料钟布料数学模型在南钢高炉布料中的应用 总被引:1,自引:0,他引:1
将理论与实际紧密结合起来,通过运用高炉无料钟布料数学模型,及时分析并解决了4号和1号高炉生产遇到的关键技术问题,使生产得到强化. 相似文献
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介绍了新钢锰铁高炉通过优化烧结矿原料结构,改善了烧结矿性能,使锰铁冶炼取得了增产、节焦、降成本的明显效果。 相似文献
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高炉炼铁合理炉料结构新概念 总被引:1,自引:0,他引:1
本文针对对我国当前炉料结构的合理性在高炉炼铁节能减排中的效果和地位,进行了系统地的分析和论述。提出高炉炼铁“合理的炉料结构”这一理论概念和实践:高炉炼铁要实现精料;现代烧结是精料加工厂;不宜选用烧结工艺进行铁精矿造块;球团具有更优越的冶金性能;低品位含铁原料预还原金属化炉料对高炉炼铁节能减排成更有利的原因进行了阐述。 相似文献
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高炉软熔带数学模型研究 总被引:1,自引:0,他引:1
运用高炉冶炼理论,结合实际检测条件,建立高炉软熔带数学模型,为高炉操作人员提供一种定量分析高炉软熔带与高炉生产之间关系的方法。通过在南钢1号高炉应用得出:其炉身下部、炉腰和炉腹内衬表面热流强度比其他部位大,属于正常范围下限;正常生产时,该高炉软熔带形状是“W”型。 相似文献
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高炉操作参数优化数学模型 总被引:2,自引:0,他引:2
采用数学规划论和最优化方法,建立高炉操作参数优化数学模型。通过对某钢厂实际生产数据的统计分析,得到了焦比,焦炭负荷,高炉利用系数等参数的多元线性回归方程,并通过计算标准回归系数确定各因素对目标函数值的影响程度和自变量与因变量的正、负相关性,调整主要参数,使目标函数接近或达到最优值。 相似文献
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The burden distribution real-time estimation problem of multi-loop charging based on the real multi-radar data is resolved. Firstly, an iterative algorithm is introduced to calculate the radial coordinate of the pile-top. Then, based on the multi-radar data, the burden profile is estimated by a cubic-curve equation at the end of the multi-loop charging. Furthermore, the burden profile before the next multi-loop charging is calculated based on multi-radar data by considering the impact of burden descent. On the basis of these burden profiles, a more accurate thickness ratio of ore to coke (RO/C) at the radial direction of blast furnace can be obtained. Finally, an example is given to calculate the burden profiles and RO/C by using the real multi-radar data sampled from Baosteel, which shows the effectiveness of the method introduced. 相似文献
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本文介绍了莱钢高炉原料冶金性能和合理炉料结构的试验结果以及利用该炉料结构的实际生产效果,并对高炉的竣工性能特征进行了分析。 相似文献