钒钛矿中钛渣冶炼高炉操作技术进步

中钛渣钒钛矿冶炼高炉在工艺操作上难于普通矿高炉冶炼,钒钛矿冶炼高炉技术人员不断对钒钛冶炼高炉操作技术进行探索,不断地攻克了钒钛矿冶炼高炉技术一个又一个难题,使钒钛矿冶炼高炉的各项经济技术指标获得了历史性突破。     

承钢1260 m~3高炉普通矿转换为钒钛矿冶炼实践

承钢炼铁厂的冶炼模式为:正常情况下用钒钛矿冶炼,在开炉及高炉炉况波动时用普通矿冶炼,炉况正常后再转为用钒钛矿冶炼。在以前的烧结矿冶炼转变过程中,由于未掌握高炉冶炼特点,在普通矿向钒钛矿转换过程中炉况发生较大波动,严重影响了高炉产量及技术经济指标。研究了承钢1#高炉一次成功地由普通矿转换为钒钛矿、低钒矿、正常钒矿过程中高炉操作的调整,为今后的几种烧结矿转换提供了宝贵经验。     

延长钒钛矿冶炼高炉一代炉役的研究

高炉长寿是现代高炉追求的目标,2500M~3钒钛矿冶炼高炉在高炉冷却壁漏水的严重情况下通过改善水质,选择合适的操作制度延长了钒钛矿冶炼高炉一代炉役。     

承钢3~#高炉煤气流分布控制研究

对承钢3~#高炉(2500m~3,钒钛矿冶炼)指标攻关强化冶炼的成功实践进行了分析总结,此次攻关通过上部装料制度调整使2500m~3钒钛矿冶炼高炉利用系数达到2.5以上,并且实现了高炉长周期稳定,对大高炉冶炼钒钛矿实现高产、低耗具有十分重要的意义。总结出针对承钢大高炉操作的经验教训,特别是对装料制度的调整,在此过程中也进一步认识到装料制度对高炉顺行和高炉技术经济指标的重要影响,初步掌握了装料制度调整的一般规律。     

钒钛磁铁矿高炉热能分配及节能途径探讨

本文通过对钒钛磁铁矿高炉热平衡的测定与计算,明确了钒钛矿高炉冶炼的热能分配和热能利用指标。在分析钒铁矿高炉节能潜力的基础上,着重对钒钛矿高炉节能途径进行了探讨。     

钒钛磁铁矿冶炼的特殊性研究

分析了钒钛磁铁矿冶炼的特殊性对高炉生产的影响,以及钒钛元素特性与高炉冶炼控制参数的对应关系。提出烧结矿低温还原粉化率、焦炭反应性是钒钛矿冶炼过程的限制性环节;针对钒钛矿冶炼渣铁滞留率高,提出控制炉渣碱度、缩小软融带宽度、改善渣铁流动性等工艺措施,取得了很好的应用效果。     

承钢2500m~3高炉钒钛矿低硅冶炼实践

从理论上分析了高炉钒钛矿冶炼中硅在铁水中的迁移行为规律和控制措施,介绍了承钢2 500 m3高炉钒钛矿低硅冶炼中硅平衡的测算和生铁含硅的主要来源。该高炉通过原燃料管理、调整操作制度、提高管理水平等措施,使其冶炼钒钛磁铁矿时生铁中的硅含量大幅度降低,高炉生产做到了长周期稳定顺行。     

延长钒钛矿冶炼高炉一代炉役的措施

高炉长寿是现代高炉操作者追求的目标,承钢公司2 500 m3钒钛矿冶炼高炉在高炉冷却壁漏水的严重情况下,通过稳定原燃料结构和质量、优化高炉操作制度,改善水质,减少炉缸侵蚀,延长了钒钛矿冶炼高炉一代炉役。     

承钢2500 m^3高炉钒钛磁铁矿冶炼新技术

承钢2500 m3高炉钒钛矿冶炼探索了多项新技术,主要包括：铁口设置、使用储铁式大沟、中钛渣风水淬渣渣处理、中钛渣冶金性能研究、高炉炉身静压力与静压差经验操作、高炉造渣制度优化、普通矿冶炼转钒钛矿冶炼操作、无重力除尘器全干式布袋除尘技术、大型旋流顶燃式热风炉使用新型燃烧器等,确保了2500 m3高炉冶炼钒钛矿炉况的稳定顺行,经济技术指标不断提高.     

攀钢高炉钒钛磁铁矿冶炼的技术进步

 攀钢高炉钒钛矿冶炼投产30多年以来,冶炼技术经历了不断的发展和完善,随着精料水平及装备水平的提高,高炉冶炼不断强化,逐步形成了独特的钒钛矿高炉强化冶炼技术。技术经济指标大幅度提高,在入炉品位仅50%的条件下,高炉利用系数达到了2.5 t/（m3·d）以上。     

Progress in Technologies of Vanadium‐Bearing Titanomagnetite Smelting in PanGang

The smelting of vanadium‐bearing titanomagnetite by blast furnace was very difficult because the content of TiO₂ of blast furnace slag could amount to 20‐25%. After long term development and continuous improvement, special intensified smelting technologies for vanadium‐bearing titanomagnetite by blast furnace were obtained and improved gradually. With the improvement of beneficiated material and equipment, smelting intensity has been increasing gradually and the highest comprehensive smelting intensity that is fuel comsumption per unit useful volume per day reached 1.45t/(m³·d). Technical‐and‐economic indexes of blast furnace have also been increasing remarkably. The highest monthly utilization coefficient exceeded 2.7t/(m³·d) on the condition that the burden total ferrum grade was only about 50%.     

Development of Intensified Technologies of Vanadium Bearing anomagnetite Smelting

  It was very difficult for the smelting of vanadium bearing titanomagnetite by blast furnace because the content of TiO2 of blast furnace slag could amount to 20%-25%. After long term development and continuous improvement, special intensified smelting technologies for vanadium bearing titanomagnetite by blast furnace were obtained and improved gradually. With the improvement of beneficiated material level and equipment level, smelting intensity has been increased gradually and the highest comprehensive smelting intensity reached 145 t/(m3·d). Technical economic indexes of blast furnace have also been increased remarkably. The highest utilization coefficient exceeded 27 t/(m3·d) on the condition that the burden grade was only about 50%.     

喷煤对钒钛磁铁矿高炉冶炼的特殊作用

通过分析钒钛磁铁矿高炉冶炼的特殊性,认为在保证煤粉燃烧率的前提下,喷煤更有利于钒钛磁铁矿高炉冶炼,其煤比可以赶上普通矿高炉冶炼的领先水平。     

Development of Intensified Technologies of Vanadium-Bearing Titanomagnetite Smelting

It was very difficult for the smelting of vanadium-bearing titanomagnetite by blast furnace because the content of TiO2 of blast furnace slag could amount to 20%-25%.After long term development and continuous improvement,special intensified smelting technologies for vanadium-bearing titanomagnetite by blast furnace were obtained and improved gradually.With the improvement of beneficiated material level and equipment level,smelting intensity has been increased gradually and the highest comprehensive smelting...     

含钒钛铁水采用镁粒脱硫工艺的探讨

高炉冶炼钒钛磁铁矿所获得的含钒钛铁水与普通高炉铁水比较,其理化性质有很大的不同,最为显著的特点是含硫量高和出炉温度低。因此,钒钛铁水应该采用炉外脱硫工艺。鉴于钒钛铁水的特点,采用镁粒喷吹脱硫工艺,其基建投资少,脱硫工序费用低,因而最为适宜合理。     

攀钢高炉含钒铁水成分的优化

根据钒钛磁铁矿的冶金特性及大型高炉冶炼含钒铁水的特点，分析了攀钢高炉含钒铁水成分对铁水在线脱硫，含钒铁水提钒炼钢的影响，建议在充分发挥钒钛磁铁矿冶炼流程中各个工艺环节的作用的基础上，通过试验研究，使高炉含钒铁水成分达到最佳化，从而使整个冶炼工艺取得更大的经济效益。     

攀钢钒钛磁铁矿资源综合利用现状与发展

阐述了攀钢钒钛磁铁矿的利用现状,指出了高炉流程冶炼钒钛磁铁矿的不足.在此基础上,针对钒钛磁铁矿特点和提高元素回收率的目标,提出了今后实现铁、钒、钛全面回收利用的钒钛磁铁矿资源综合利用发展方向.     

高炉钒钛冶炼时的炉渣处理分析

介绍了川威集团目前高炉钒钛冶炼的现状,分析现有国内应用较广的几大炉渣处理方式的工艺、特点、要求等。针对川威集团现在即今后高炉钒钛冶炼时的特点,探究其炉渣处理方式的选择。