共查询到19条相似文献,搜索用时 62 毫秒
1.
3.
精料炼铁和经济料炼铁是两条截然不同的技术路线。本文选取3家钢企近期生铁成本数据,对精料炼铁和经济料炼铁利弊进行分析,试图为微利时代新钢炼铁炉料结构调整和优化提供有价值的建议和思路。 相似文献
4.
6.
7.
8.
10.
11.
12.
炼铁厂通过改善原燃料质量、优化高炉炉料结构等工作,取得较好的生产效果,2006年与1996年相比,焦比降低了131.2kg/t,工序能耗降低了60.46kg/t。 相似文献
13.
介绍了鞍钢股份有限公司鲅鱼圈钢铁分公司在高炉生产中对精料技术的探索,分析了精料技术对高炉生产指标的影响。生产实践表明,采用混匀造堆技术、强化烧结技术、焦炭质量控制技术以及选择高炉合理炉料结构,高炉经济技术指标得到改善,高炉平均利用系数稳定在2.2~2.3 t/(m3.d)之间。 相似文献
14.
15.
16.
17.
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
18.
《钢铁研究学报(英文版)》2016,(8):765-771
Mathematical models for burden descending process have been applied to obtain whole burden structures in blast furnace,whereas the accuracy of those burden descent models has not been sufficiently investigated.Special evaluation method based on timeline burden profiles was established to quantitatively evaluate the error between ex-perimental and modeled burden structures.Four existing burden descent models were utilized to describe the burden structure of a 1/20 scaled warm blast furnace.Input modeling conditions including initial burden profile,descending volumes in each time interval,and normalized descending velocity distribution were determined via special image pro-cessing technology.Modeled burden structures were evaluated combined with the published experimental data.It is found that all the models caught the main profile of the burden structure.Furthermore,the improved nonuniform de-scent model (Model IV)shows the highest level of precision especially when burden descends with unstable velocity distribution tendency.Meanwhile,the traditional nonuniform descent model (Model III)may also be desirable to model the burden descending process when the burden descending velocity presents a linear tendency.Finally,the uni-form descent model (Model I)might be the first option for roughly predicting burden structure. 相似文献
19.
铸管公司3#高炉大修扩容后,通过采取提高精料水平,增加风量,优化高炉操作,加强设备和人员管理等措施,使高炉冶炼不断强化,2000年高炉利用系数达到3.48t/m3.d. 相似文献