含钛物料护炉技术浅议

介绍了国内外炼铁高炉采用含钛物料护炉技术的发展概况及所取得的主要成就，同时对含钛物料护炉机理，以及护炉的技术关键进行了论述。     

高炉使用含钛物料护炉技术的发展

介绍了控制炉缸水温差升高所采取的一般措施，简述了含钛物料护炉的原理及含钛物料的各种加入方式；并通过对国内外高炉使用含钛物料护炉经验的介绍，说明了这几种加入方式各自的特点及适用情况．     

高炉加入含钛物料护炉的方法探讨

比较分析了目前高炉所采用的两种加入含钛物料护炉的方法，长期少量均匀加入法和间断大量加入法，并结合梅山１号高炉折护炉实践和停炉后的破坏调查结果，提出了第三种加入含钛物料的方法，即长期适量加入法。     

高炉炼铁中含钛炉渣对Al_2O_3陶瓷杯的侵蚀行为

<正>高炉炼铁中含钛炉渣对Al2O3陶瓷杯的侵蚀行为在现代炼铁生产中,很多高炉采用陶瓷杯加炭砖复合炉缸炉底结构。因炉缸经常受到渣铁严重侵蚀,使含钛物料护炉技术得到广泛应用。在含钛物料护炉中,通常采用提高温度、延长渣铁在炉缸中的停留时间等措施,使炉渣中更多的TiO2被还原出来,生成Ti(C,N),从而提高护炉效果。北京科技大学的学者为了提高高炉含钛物料护炉的效果,以现场含钛高炉渣和人工合成含钛炉渣为原料,通过静态坩埚抗渣试验,利用钙平衡法计算渣量的变化,就温度、反应时间、二元碱度等因素对Al2O3陶瓷杯侵蚀的影响及侵蚀机理进行研     

含钛物料护炉的机理及应用

根据钛在高炉内的还原及形成ＴｉＣ．ＴｉＮ及Ｔｉ（ＣＮ）等物质的理论，综合分析了钛护炉机理及应用，并提出含钛物料在上、中下部位的综合护炉技术。     

《高炉含钛物料护炉技术》简介

高炉冶炼强化后,炉缸、炉底寿命一直是高炉长寿的限制性因素。我国自80年代初开发含钛物料护炉技术后,采用该项技术,可以较好地解决炉缸炉底的寿命问题。本书概括地介绍了含钛物料护炉的有关机理、护炉经验、大中小各种类型高炉的护炉生产实践及效果、风口喷吹与铁口炮泥加入新方法等试验结果,以及新型护炉料的开发应用等,比较系统地总结了我国开发、应用护炉     

高炉护炉用含钛物料应用现状及调研分析

对国内10家钢铁企业护炉所用的含钛物料进行了调研,研究了不同高炉所用含钛物料的实际情况,分析了不同含钛物料的特性并对其进行评价。调研表明,国内高炉所用含钛物料种类较多,主要为含钛球团矿和块矿,含钛物料的化学成分和采用的运输方式差异较大,主要运输工具为汽车和火车。通过对含钛物料性能和经济指标的分析,得到不同含钛物料的优劣顺序为含钛包芯线、含钛球团矿、含钛块矿、含钛烧结矿和含钛冷固结球团矿。含钛物料的加入方式分为上部加入和下部加入,上部加含钛球团矿、下部使用含钛炮泥的护炉效果较好。     

关于含钛物料护炉技术

较系统地概括了国内高炉用含钛物料护炉的全过程及护炉的技术特点,并总结了湘钢在含钛物料入炉量的控制、加入时机、高炉操作等方面的经验,同时对护炉机理进行了研究,并对这些应注意的问题进行了探讨。     

含钛物料护炉方法的探讨

炉缸炉底异常侵蚀是影响高炉寿命的主要因素。目前,延长炉缸炉底寿命的主要措施有两个：一是改进炭砖质量,二是采用含钛物料护炉。若能把二者有机结合起来,将会大大延长高炉寿命。为此,作者设想把含钛物料以微粉添加剂形式加入炭砖配料中生产含钛复合炭砖。这种炭砖抗氧化性和抗铁水渗透性较好,而且在炭砖被侵蚀时能及时生成Ｔｉ（Ｃ、Ｎ）沉积物,阻滞碳的进一步溶解和铁水的侵入,对炉底炉缸有保护作用,可克服目前含钛物料护炉方法的一些弊端,有效利用宝贵的钛资源     

高炉风口喷钛护炉

通过对三种加钛护炉方法的比较，说明风口喷钛是最佳护炉方式。它具有针对性强、降温速度快、含钛物料消耗量少、对高炉操作影响小等优点。影响风口喷钛护炉效果的主要因素是喷吹位置的选择。     

China's Major Non-ferrous Metals Imports & Exports

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Zinc Production by Province in 2014

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80% of Chinese Firms Purchasing Overseas Mines Ended up in the Red

<正>Minmetals Resources acquired the world’s largest copper mine under construction for USD5.85 billion.One after another,listed companies Jien Nickle,China Molybdenum and Chihong Zinc and Germanium raised money to get involved in overseas mining projects…SOEs and private enterprises are engaged in a frenzy of overseas mine purchasing.A reporter with Economic     

Copper Processing Profit Dropped Sharply,Copper Consumption Will Face Impact in the Second Half of the Year

正Judging from China’s copper consumption field,the biggest consumption unit is electric power,which accounts for 47%of total consumption;it is followed by light industry sector,including household electrical appliance,machinery,durable goods and hardware etc,which accounts for 22%of total consumption;followed by transportation field,     

Central Geological Prospecting Fund Newly Added 16.47 Million Tonnes of Bauxite in 2013

正In 2013,the Central Geological Prospecting Fund(CGPF)Project newly discovered 15 ore fields,including 3 large above ore fields,and 5medium sized ore fields.The reporter learned from the recently published"Annual Report of Central Geological Prospecting Fund Project(2013)"that,from 2006 to 2013 the CGPF     

Manufacturers of Copper Tube for Central Air Conditioner Use Face Mounting Pressure in the Final Quarter of the Year

正This year,the investment growth rate of real estate industry continued to slow down,sold area of commercial housing also dropped significantly,which brought huge pressure to the domestic air conditioning manufactures.In the first half of the year,by relying on high growth in national financial expenditure,along with investment in public infrastructure     

Xinjiang Ranks No.1 in Production of Primary Aluminum in China

正Kang Yi,Honorary Chairman of China Nonferrous Metals Industry Association,said recently at the Forum on Development of the Non-ferrous Metals Industry in Central and Western China held in Zhengzhou that,as more and more electrolytic aluminum factories in Xinjiang came into operation,the electrolytic aluminum output of Xinjiang had reached2,275,000 tons in the first 7 months this year,     

Shenhuo Coal Industry and Electricity Power Completed800,000 t/a Aluminum Project in Xinjiang

正"Xinjiang project has been completed according to schedule,but total completion and total start of production are two different concepts,after completion it still needs a gradual process of reaching production target."On the morning of November 3,Shenhuo Coal Industry and Electricity Power told investors the above statement on the investor interaction platform.     

Guangdong Metal Transaction Center has Become the Second Largest Precious Metal Transaction Platform Nationwide

正The reporter learned from Guangdong Province Precious Metal Transaction Center that in 2013the Center maintained healthy development momentum,and had become the second largest precious metal transaction platform in China in terms of market size;currently Guangdong is quickening steps of financial innovation for the Center,aiming to build a transaction center with international core competitiveness.     

Seven Rare Earth Projects Involving Close to 3 Billion Yuan Investment Landed In the HighTech Zone

正On May 22,Baotou Rare Earth Industry Cooperation Consultation MeetingProject Agreement-signing Ceremony was held in Ningbo,nearly 40 enterprises from Ningbo,Guangdong,Hunan,and Shanxi participated in project consultation.After multi-lateral communication,agreements were signed for a total of 7 rare earth projects successfully.