梅山2号高炉内燃式热风炉设计运行实践

梅山2号高炉采用改进型内燃式热风炉，从设计、结构、耐火材料选择等方面保证了热风炉提供高风温的能力。采用以高炉煤气为燃料的附加燃烧炉，通过管束式换热器对空气、煤气进行预热，可有效地提高热风炉的理论燃烧温度，进而提高热风温度，在全烧高炉煤气的情况下实现了1200℃以上的高风温。     

基于智能数字PID算法的热风炉温度控制系统

介绍了高炉热风炉温度自动控制系统的结构,提出基于智能数字PID控制算法对高炉热风炉温度的控制,该方法能够满足高炉对温度控制的要求.     

光电测温仪在高炉热风炉炉顶测温中的应用

热风炉是高炉生产工艺的重要组成部分．它可稳定地供给高炉热风，是高炉降低焦比、强化冶炼的重要手段。热风炉炉顶温度需严格控制使其不能超过炉体耐火砖允许蠕变的最大值。2002年，本溪钢铁公司二铁厂利用高炉热风炉仪表系统改造的机会，将以住采用热电偶测量炉顶温度的方法改用JG系列光电测温系统，明显提高了测量精度和稳定性，并获得较好的经济效益。     

热风炉用耐火砖和隔热砖的选择

分别叙述了热风炉用耐火砖和隔热砖的性能，设计热风炉时耐火砖和绝热砖的选择主要由设计热风温度和热风炉尺寸大小来决定，此外还应考虑到耐火砖的价格因素，提出了适用于大型高炉和中小型高炉热风炉的耐火砖选择方案。     

沙钢2500m~3高炉热风炉改造实践

沙钢炼铁厂现有3座2 500 m3高炉,每座高炉配备3座内燃式热风炉,送风温度约1 180℃。为提高风温及现有热风炉改造做准备,决定每座高炉增加一座顶燃式热风炉。改造后,每座高炉配备4座热风炉,采用交叉并联的送风制度,送风温度1 250℃。     

宝钢高炉热风炉平衡计算与分析

在热平衡计算的基础上,对宝钢一、四高炉热风炉进行了平衡分析。结果表明,宝钢一、四高炉热风炉效率远低于热效率,且一高炉热风炉全系统效率比四高炉热风炉低6.54%。两座高炉热风炉损失主要为燃烧过程不可逆损失、烟气带出的物理损失、热交换不可逆损失和化学不完全燃烧损失。宝钢热风炉节能的主要途径是:采用合理的空气过剩系数或富氧燃烧,降低烟气温度,提高冷风入炉温度,提高烟气余热回收装置利用水平。     

高炉热风炉掺烧混合煤气实践

炼铁厂高炉热风炉原来是用高炉煤气，由于高炉煤气理论燃烧温度较低，导致热风温度低，为提高热风温度，掺烧了混合煤气，取得了一定的经济效益。     

杭钢新2号高炉热风炉设计

杭钢新2号高炉热风炉设计通过多方案比较后，选择利用老的热风炉作为助燃空气预热炉，易于实现高炉对高风温的要求；助燃空气温度提高后，相应助燃风机、管道及燃烧器均有别于常规热风炉设计。     

本钢3号高炉热风炉的设计特点

通过热工计算及采用合理的热风炉结构，本设计为本钢三号高炉配置了三座高温长寿内燃式热风炉,投产结果表明，本热风炉系统运行稳定可靠，能达到为炉容2600m^3的高炉提供年平均温度为1200℃热风的能力．     

球式热风炉采用纯高炉煤气获得1200℃高风温的生产实践

介绍了威钢２号高炉（２０３ｍ＾３）３号高炉（３１８ｍ＾３）球式热风炉采用纯高炉煤气的生产实践，利用热风炉烟道废气余热将阻燃空气预热到１００～１６０℃；高炉煤气用布袋除尘技术使煤气温度保持在８０～１５０℃，球式热风炉拱顶温度控制在１３００～１３５０℃时，高炉平均风温达到１２００℃。     

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.