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烧结工序的能耗约占钢铁生产总能耗的10%,这其中,固体燃料消耗占到70%~80%,所以,降低烧结固体燃料消耗是降低烧结工序能耗的主攻方向。介绍了安钢3#烧结机在降低固体燃料消耗方面所采取的措施和取得的进展。 相似文献
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选烧厂1#2#烧结机蒸汽预热的使用,对提高混合料料温起到一定积极作用,同时对烧结机固体燃料消耗、能源消耗、烧结成本等造成一定的波动,本文主要通过对烧结技术经济指标的分析研究,摸索蒸汽预热的使用对实际烧结生产的影响。 相似文献
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随着高炉对烧结矿质量要求的提高,原燃料及烧结工艺方面的问题成为制约烧结生产发展的主要因素。针对宏阳钢厂 42m2烧结机存在的影响烧结生产因素进行了分析,并采取相应技术措施加以改进,使烧结机利用系数得到提高,保证了为高炉提供优质结烧矿。 相似文献
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为了发挥大型烧结机的效能,进一步降低铁前成本。通过采取稳定烧结用原燃料结构、改进工艺技术、改造设备、推行标准化操作等措施,促进了烧结操作水平的提高,在入烧原料较差的条件下,360m2烧结机固体燃耗大幅度降低。 相似文献
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针对105 m2烧结机烟气NOx(氮氧化物)排放量超标的情况,通过4座烧结机连续生产的工业性试验,探索了在正常生产工艺装备和原燃料条件下降低烟气NOx排放量的措施.在烧结产能富裕的前提下,通过降低烧结机机速,提前烧结终点,减小烧结机燃烧带面积,以减少NOx的生成量.工艺优化后,烟气NOx含量由最高273 mg/m3以上... 相似文献
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由于烧结工序产生的NOx主要为燃料型NOx[1](90%以上是由烧结燃料燃烧产生[2]).氧化铁皮中的FeO在烧结过程中放热,可替代部分焦粉,对降低固耗有一定效果,因此,理论上烧结生产添加氧化铁皮,通过降低固体燃料消耗也可以达到降低烧结烟气NOx浓度的目的.为实现烧结烟气NOx源头治理[3]和减少排放,在梅钢四号烧结机... 相似文献
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实验结果表明,M17铸造高温合金(%:0.16C、8.79Cr、5.79A1、4.93Ti、3.29Mo、15.20Co、0.78V、0.015B、0.073Zr、0.002S、0.001P、0.001 1O、0.001 0N)经25 kg真空感应炉返回重熔后,Si含量随重熔次数的增加而略有增加,合金中主要元素和其它杂质元素S、P、H的含量变化不大,而氧、氮略有增加;合金中初生碳化物由新合金中的草书体逐渐向返回合金块状转变,初生碳化物的遗传性堵塞合金凝固时的补缩通道,使返回料合金的疏松倾向增大,高温塑性下降较大。 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