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介绍了攀钢转炉渣化学尬发特点及矿物相组成的特征;对配加锰矿,萤石,石英砂的渣进行了相成分分析。结果表明配加不同造渣剂,其脱磷,硫矿物相是不相同;通过不同造渣剂的渣对炉衬的任用分析认为,配加锰矿的渣属于粘渣,对炉衬有保护作用;则配加石英砂及萤石的渣均属于稀渣,对炉衬衬有侵蚀作用。 相似文献
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为降低铁前成本,永锋钢铁高炉冶炼配加高比列块矿。为了降低高比例块矿配用对高炉的影响,采取块矿烘干、提高筛分效果、调整造渣制度和热制度、保证风速和鼓风动能、加强高炉生产管理等措施,使炉况长期稳定顺行。块矿配加比例增加至20%后,高炉产量4 000 t/d以上,煤比175 kg/t以上,焦比350 kg/t以下,吨铁成本降低30元左右。 相似文献
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中冶葫芦岛有色金属集团有限公司一项科研课题攻关项目获得重大突破,取消锌精矿、铅精矿,仅使用混合矿和中间氧化物料进行配料的生产模式正式应用到铅锌冶炼厂系统生产中。此举将改变ISP生产工艺原采用锌精矿配烧混合矿加中间物料的生产模式,每年可为公司降低锌精矿采购成本上千万元。 相似文献
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在平炉装料中采用碎矿会导致熔化时间的延长和这个时期内从炉中喷出金属和炉渣,此外还增加装料时间内由废气带走的碎矿颗粒,从而加速沉渣室的填满和格子砖的堵塞。为此,必须把细碎的原矿与溶剂配合成团矿(造块),才能保证氧化铁和石灰紧密的接触,以便于造渣和在熔化前期得到高碱度炉渣,并具有足够含量的氧化铁。虽然在苏联好几个钢厂内使用氧化和自熔性的烧结矿以及矿石~石灰石团矿的实验效果都良好,但平炉用团块物料的成批生 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