共查询到19条相似文献,搜索用时 156 毫秒
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本文重点介绍了钙镁混合粉剂喷吹脱硫工艺在二钢的应用,并通过与原钙系脱硫粉剂的对比以及与国内外钢厂采用镁基脱硫剂脱硫工艺的比较,表明采用单喷镁脱硫工艺具有脱硫效率高、粉剂低的优点,建议炼钢厂应采用单喷镁粉工艺进行铁水预处理,以降低炼钢成本,提高炼钢质量,进而取得一定的经济效益和社会效益。 相似文献
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在实验室,用喷吹法对含钒钛铁水进行了脱硫试验,分析比较了石灰基、电石基、镁基复合脱硫剂的脱硫率、用量和铁水温降以及工艺条件对脱硫效果的影响。 相似文献
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本发明涉及到有关铁水及钢水用石灰脱硫剂的制备方法。众所周知,石灰可用于铁水及钢水的脱硫处理。石灰的碱性高,有益于脱硫。然而纯石灰的脱硫效果却不佳,这可能是由于石灰的熔点过高,在一般的铁水或钢水温度下不熔所致。为此需要在石灰中加入一种熔剂(如氟化钙),以使脱硫剂在与铁水或钢水接触后至少能够部分熔化,形成一种液态脱硫渣。有人提出,在烧结石灰中加入一定量的 相似文献
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铁水脱硫剂的研究和发展 总被引:5,自引:0,他引:5
通过对常用脱硫剂脱硫反应和性能的介绍,指出研制铁水复合脱硫剂的必然性,并从热力学的角度分析了复合脱硫剂的构成。大量的研究和应用表明,铁水脱硫剂将主要朝两个方向发展;一是以石灰基为主的复合脱硫剂;二是配加石灰、电石、焦炭等的金属镁脱硫剂。 相似文献
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为了降低铁水预处理成本,对铁水预处理过程参数进行优化,包括喷粉速率、喷枪插入深度等参数,并且在不影响脱硫效率的前提下,采用低CaO含量的钝化石灰粉替代高CaO含量的钝化石灰粉进行喷吹脱硫尝试。结果表明,钝化石灰粉消耗减少0.963 kg/t铁,镁粉脱硫效率提高6.9%,低CaO含量的钝化石灰粉不影响脱硫率。 相似文献
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莱钢特钢厂90t转炉喷溅的主要原因是突发性碳氧反应、熔池温度骤降和FeO过多积累、高硅高磷铁水和留渣操作等。通过优化枪位控制、加料时机控制、熔池温度控制、留渣操作控制等,使钢铁料消耗降低了5.5kg/t、喷溅渣降低了8.1kg/t,使耐材消耗、氧气消耗、石灰消耗分别降低了0.22kg/t、1.2m3/t、1.8kg/t。 相似文献
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《Baosteel Technical Research》2010,(Z1):107
Through summary and extraction of current steelmaking design,process and equipment technologies and production technologies for 300 t grade converters in Baosteel,the article analyzes and elaborates the significance of independent integration of 300 t grade converters in Zhanjiang,major targets of the independent integration in converter process technologies,equipment packages and controls,the innovated critical technologies and comparison with overseas advanced technologies,major technical difficulties in the integration in Baosteel and their solutions,as well as general mindset and final objectives of the project.The total integration of technology for Shanghai No.1 Steel Making Plant of Baosteel was undertaken by Nippon Steel.And Kawasaki Steel was responsible for the total integration of technology for 4# and 5# converters of Shanghai No.2 Steelmaking Plant of Baosteel.Based on digestion,absorption and innovation of the introduced technologies,Baosteel has firstly achieved the independent integration of 6# converter,5# RH and 3# LF projects in the Shanghai No.2 Steelmaking Plant of Baosteel.Therefore, Baosteel shall take advantages of the favorable conditions and experiences and advanced steel making technologies of Baosteeel to master the imported new steelmaking technologies in the world and then form the advanced complete set steel making technologies and equipment at home and abroad.The achievement of independent integration of Zhanjiang Steel Making Project will make the breakthrough for the construction of large - sized steel making plant in Baosteel.300 t converter technology integration is undertaken by Baosteel independently in instead of by the foreign side in the past. 相似文献
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简要介绍了均质烧结技术的特点及在鞍钢的应用情况。实施该技术后,烧结机料层厚度提高了50—100mm,点火温度降低了150—200℃,点火煤气消耗降低了31.5%-50.5%,固体燃料消耗降低了2~3kg/t。 相似文献