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为了提高焦炭质量,改善焦炭的热反应性和反应后强度,在不同的喷洒时间将不同浓度的钝化剂溶液分别作用在两种强度的焦炭表面上,进行焦炭热性质的试验和探讨.试验结果表明钝化剂浓度和焦炭本身的质量对焦炭的热性能影响很大,而钝化剂的喷洒时间对焦炭热性能没有影响. 相似文献
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本文对本钢5号高炉冶金焦的反应性和反应后强度之间的关系,冷态强度和热态强度之间的关系进行分析讨论,用典型的事例说明冶金焦反应性的反应后强度在高炉冶炼中的重要性,对5号高炉入炉焦的质量要求有一定的参考价值,建议焦炭反应性和反应后强度列入焦炭质量指标。 相似文献
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焦炭反应性及反应后强度试验中应注意的几个问题 总被引:1,自引:0,他引:1
焦炭反应性及反应后强度,是评价焦炭热性质的重要指标,对高炉冶炼影响很大。近年来随着高炉大型化,这两指标越来越受到人们的重视,许多国家根据本国资源和技术需要制定了不同的测试方法,并用相应指标控制焦炭质量。我国于1983年就制定了国家标准,并于1996年进行了修定,随着钢产量的飞速发展GB4000几乎已被所有企业接受,焦炭反应性及反应后强度测定已成为企业的日常工作。但是由于试验条件掌握不好,两指标的测定值相差较大,影响了对焦炭质量的评价。根据几年来的工作经验,提出几个测定中应注意的问题,供大家参考。 相似文献
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影响焦炭高温性能的主要因素 总被引:3,自引:0,他引:3
根据已建立的焦炭反应性与气化反应速度之间的关系式,得出影响焦炭反应性和热强度的主要因素为:碱金属,温度,压务,焦炭灰分,焦炭显微组分以及焦炭与水的反应性。从理论和实验两方面分析了上述各因素对焦炭高温性能的影响。 相似文献
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针对梅山自产焦炭,利用梅山焦炭反应性试验设备,通过改变焦炭块数、CO2流量和温度等控制参数,讨论了这些参数对焦炭反应性和反应后强度检测值的影响,以及保证测定可靠性应采取的控制措施。 相似文献
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对马钢2500M^3高炉用焦炭的冷态、热态性能进行了分析,并结合焦炭对高炉生产的理论知识,阐述了马钢焦炭对马钢2500m^2高炉生产的影响。 相似文献
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<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 相似文献
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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, 相似文献
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《China Nonferrous Metals Monthly》2014,(10)
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 相似文献
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《China Nonferrous Metals Monthly》2014,(10)
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 相似文献
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《China Nonferrous Metals Monthly》2014,(10)
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, 相似文献
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《China Nonferrous Metals Monthly》2014,(12)
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. 相似文献
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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. 相似文献
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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. 相似文献