蓄热式加热炉常见温度问题研究

对蜂窝状蓄热式加热炉温度不均衡现象进行了探讨，对问题进行了分类分析，找出温度不均衡原因，提供有效解决办法。并从理论方面着手分析解决蜂窝体倒塌及碎裂问题，为同类型加热炉设计建造及蜂窝体研究改进提供了参考。     

加热炉用蓄热体的研制与应用

对加热炉用蓄热球和蜂窝体的特点进行了分析比较,提出了蓄热式加热炉选用蓄热体的基本原则,介绍新开发的性能优良的、可以推广应用的蓄热体和组合式蓄热烧嘴以及轻质高强预制吊挂炉顶。     

对蓄热式加热炉的蓄热体改造

针对宣钢小型轧钢厂一小型车间蓄热式加热炉加热能力小、加热质量差、耗能高的问题,分析了主要原因,将加热炉的蓄热体由蓄热小球置换为蜂窝体后,加热炉的通气量提升、炉压稳定、待温待轧现象明显减少,达到了节能降耗、稳定生产的目的。     

蓄热式燃烧技术在中厚板轧钢厂的应用实践

介绍了高温空气蓄热式燃烧技术在中厚板轧钢厂2座加热炉上的应用情况。对采用不同蓄热体及燃烧方式的2座加热炉的实际效果进行了分析，总结了高温空气蓄热式燃烧技术的实践经验，为进行大型板坯加热炉蓄热式技术改造提供了依据。     

蓄热体热过程模拟研究

在考虑蓄热体沿气体流动方向热传导,并将空气、烟气流动中对蓄热体的传热,看做气柱微元及蓄热体微元的体积内热源情况下,建立了蓄热体数学模型.采用有限差分方法对控制方程进行离散化,对蓄热体热过程进行了数值模拟.分析了材料物性及热工操作等参数对蓄热体工作的影响,对蓄热式加热炉蓄热体的选择提供了理论参考.     

首钢蓄热式燃烧技术应用及问题讨论

介绍了小球和蜂窝蓄热体蓄热式燃烧技术在首钢加热炉上的应用,分析了其运行时出现蓄热体板结、破碎,阀门损坏,加热能力不足等问题,提出了基本对策.通过加热炉检修技术措施的实施,逐步解决其技术问题,延长了使用寿命.     

高性能蓄热体的研制及应用

针对蜂窝状蓄热体的损毁机理,研制出了以莫来石为主成分,基质得到增韧的高性能蓄热体,因其具有优良的高温使用性能及热震稳定性,在实际应用中取得了良好的效果。     

首钢中厚板厂蓄热式燃烧技术的应用研究

阐明首钢中厚板厂原2号加热炉存在区域狭窄、设备落后和单耗高等问题和应用蜂窝体分散控制蓄热式燃烧技术改造基本内容。利用Fluent软件、热工测试等手段重点研究了加热炉前后流场、烧嘴结构、蓄热体和钢坯加热等内容，研究结果表明改造后加热炉成功应用优选设计烧嘴，具有较为均匀的温度场、加热钢坯温度均匀等优点。并对改造后加热炉进行应用效果分析，结果表明，蓄热式加热炉可实现节能20％，降低烟气有害物排放和提高钢坯加热质量。     

高温空气燃烧轧钢加热炉用蓄热体的研制

高温空气燃烧加热炉所用的蓄热体的形状、材质多样，球体、高铝矾土质蓄热体具有生产容易、蓄热能力强、换热迅速等优点，是生产蓄热体的优先选择。     

蓄热式加热炉应用蜂窝体效果分析

论述了加热炉进行蓄热式改造。应用小球为蓄热体的摹本情况,分析了存在的问题和提出了技术改造措施,通过应用蜂窝体,取得良好的技术效果和经济效益。     

熔炼次数对M17返回料合金成分、组织和性能的影响

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。     

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.