共查询到20条相似文献,搜索用时 69 毫秒
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钢包喂线技术在转炉炼钢中的应用 总被引:1,自引:0,他引:1
新钢公司第一炼钢厂转炉钢水经过喂Ca-Si包芯线和吹Ar处理,取得了脱氧,脱硫,改善钢液流动性的良好效果,成材(坯)率显著提高,钢材力学性能有所改善。 相似文献
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钢包底吹氩是一种操作简单、精炼效果明显的炉外业炼装置。新兴铸管炼钢厂为改善钢水精炼效果,采用钢包底吹氩代替顶吹,即用狭缝式透气砖代替吹氩棒,生产实践证明,底吹氩能改善和提高钢水的内在质量,降低钢中夹杂物含量和气体含量,吹氩后钢质的力学性能符合国家标准。 相似文献
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该厂有两条几乎相同的生产线而且每条都可独立运行。它们包括一个对废钢等级精心分类的废钢场、两套废钢预热装置、两座功率为40/48MVA直径为5.5米的超高功率电弧炉,并配有水冷炉壁和炉盖以及附加的氧/燃料烧嘴。两座电炉都配有煤/氧喷吹系统。其中一座炉子配备一套新式的偏心底出钢系统。 一套合金上料系统服务于两座炉子。两条生产线现都配有一座钢包炉。钢水在两台4流连铸机上浇铸,有热中间包系统可进行连连浇。现用的生产线包括整套现代技术和机械。机械和工艺过程由现代化的过程自动化系统监控及控制。 相似文献
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钢包喷粉工艺是国外70年代发展起来的一项新技术,它具有投资少,见效快,收益大等优点,采用钢包喷粉工艺可更进一步净化钢质,提高钢材产品质量,介绍了这一工艺所需要的主要和各种粉剂的性能。 相似文献
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介绍了LF钢包精炼炉的冶金功能及主要设备,比较了LF炉在炼钢厂房中的布置形式及其优缺点,并结合与其它精炼装置配置介绍了LF钢包精炼炉在钢种开发中的运用。 相似文献
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介绍了在转炉出钢工位加入脱硫剂和吹氩喂丝工位喂入含镁包芯线简易脱硫工艺研究的结果。在30t钢包中,当喂丝速度在1.0-1.5米/秒,喂丝量为270米/炉时,平均脱硫率为46.4%,平均温降为6.9℃,取得较好的脱硫效果。 相似文献
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André Zimmer lvaro Niedersberg Correia Lima Rafael Mello Trommer Saulo Roca Bragana Carlos Pérez Bergmann 《钢铁研究学报(英文版)》2008,15(3):11-0
The heat transfer in a steelmaking ladle was studied. The evaluation of heat transfer of the steel was performed by measuring steel temperature in points including all refining steel process. In the ladle, the temperatures in the refractories and the shell were also measured. To evaluate the thermal profile between the hot and cold faces of the ladle in the slag line position, an experiment which shows the importance of thermal contact resistance was carried out. Higher heat losses in the tapping and the vacuum were verified. The temperature measurements of the ladle indicate distinct thermal profiles in each stage of steel refining. Moreover, as each stage of the process depends on the previous one, the complexity of the ladle thermal control is incremental. So a complete model of heat losses in the ladle is complex. 相似文献
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炼钢厂的计算机辅助生产调度系统 总被引:3,自引:0,他引:3
钢铁生产是混合型工业过程中最为复杂的制造过程,而炼钢区段则是钢铁制造过程中最为复杂的阶段,其中炼钢厂运行控制的计算机化是炼钢系统优化与控制的重要内容。阐述了炼钢厂计算机辅助生产调度系统(CAPSS)的核心问题、软件结构及研发内容等重要问题,从工程角度描述了CAPSS系统硬件和工具软件的配置方案,并对CAPSS应用软件的设计原则、设计方案、体系结构、数据库设计和模块设计进行了探讨。CAPSS已经投入实际生产并获得了良好的实效。 相似文献
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针对无碳罐衬砖半工业生产中存在的颗粒集中、砖坯强度低、层裂、裂纹等问题进行分析,并采取了相应的措施,调整了泥料粒度组成及结合剂的加入量,使半工业生产试验得以顺利进行.新产品通过钢厂使用,取得较好效果. 相似文献
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Mass Balance Modeling for Electric Arc Furnace and Ladle Furnace System in Steelmaking Facility in Turkey 总被引:2,自引:0,他引:2
In the electric arc furnace (EAF) steel production processes, scrap steel is principally used as a raw material instead of iron ore. In the steelmaking process with EAF, scrap is first melted in the furnace and then the desired chemical composition of the steel can be obtained in a special furnace such as ladle furnace (LF). This kind of furnace process is used for the secondary refining of alloy steel. LF furnace offers strong heating fluxes and enables precise temperature control, thereby allowing for the addition of desired amounts of various alloying elements. It also provides outstanding desulfurization at high temperature treatment by reducing molten steel fluxes and removing deoxidation products. Elemental analysis with mass balance modeling is important to know the precise amount of required alloys for the LF input with respect to scrap composition. In present study, chemical reactions with mass conservation law in EAF and LF were modeled altogether as a whole system and chemical compositions of the final steel alloy output can be obtained precisely according to different scrap compositions, alloying elements ratios, and other input amounts. Besides, it was found that the mass efficiency for iron element in the system is 9593%. These efficiencies are calculated for all input elements as 845% for C, 3031% for Si, 4636% for Mn, 3064% for P, 4196% for S, and 6979% for Cr, etc. These efficiencies provide valuable ideas about the amount of the input materials that are vanished or combusted for 100 kg of each of the input materials in the EAF and LF system. 相似文献
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莱钢转炉炼钢生产工艺流程系统优化 总被引:1,自引:0,他引:1
为提高转炉生产能力,对转炉炼钢系统进行优化,采取高炉炉前脱硅、转炉炉外脱硫措施,在转炉冶炼工艺中设计合理的氧枪喷头、减少渣量、实施溅渣护炉等,实现了系统全流程优化,生产作业率达到93%,转炉年产能从320万t提高到400万t以上. 相似文献