重油燃烧乳化节能技术的运用及探讨

１前言随着我国市场经济的发展，重油作为冶金工厂的重要能源，已不象过去由国家下拨指令计划，重油来源不稳定，价格也较贵，因此能够不用油的企业尽量不用，但作为一种重要的能源介质，有些工厂在副产煤气不够用或根本无副产煤气的情况下，仍不得不采用重油。因此在重油的供油设计系统中有必要对其各个环节进行考虑，不仅要节省能源，减少对环境及设备的损害，还要操作方便。２运用及探讨在鄂钢某工程的供油设计中，我们采用了以下几种措施：（１）重油乳化燃烧；（２）供油泵变频技术；（３）重油磁化，（４）过剩空气系数的控制。工艺流…     

韶钢高炉煤气在轧钢加热炉的应用

钢铁联合企业副产大量的高炉煤气,但高炉煤气因热值低,难于直接用于轧钢加热炉上,许多企业存在高炉煤气富余放散的现象.韶钢通过采用金属换热器对高炉煤气、助燃空气进行双预热,重油-高炉煤气混烧,蓄热式燃烧技术等措施,将高炉煤气用到轧钢加热上,充分利用企业的富余高炉煤气,降低了轧钢工序的生产成本,走出一条发展循环经济的新路子.     

热煤气代替重油在铅烧结机点火工序的应用

热煤气代替重油应用于45m2铅烧结机点火,解决了使用重油燃料成本太高的问题。     

中国十大钢副产煤气利用现状及节能建议

钢铁企业副产煤气约占企业耗能总量的40%.副产煤气的应用直接影响企业能耗水平的高低.文章对国内传统十大钢铁企业2006年度副产煤气应用状况作出分析,提出了借鉴宝钢副产煤气高效利用经验,提高钢铁企业副产煤气利用水平的建议.     

热煤气代替重油在铅烧结机点火工序的应用

热煤气代替重油应用于45m^2铅烧结机点火，解决了使用重油燃料成本太高的问题。     

钢铁厂高能效利用副产煤气的可行途径

钢铁厂在生产过程中,副产了大量可燃煤气。副产煤气热值范围在3～20MJ/Nm3,所含的热量可被利用,如:电厂、焦炉、热风炉、热轧厂等所需燃料,可用副产煤气部分替代天然气,减少煤气放散,降低公司的能耗成本和环境污染。使用副产煤气虽能得益却也面临难题。副产煤气的产量和成分取决于生产和工艺状况,煤气用户必须随之调整其操作。用气设备的启停操作改变了煤气用量,造成煤气管网压力波动,副产煤气成分变化则会引起热值波动,一旦管网压力波动或成分改变,将对管网上用气单元的燃烧过程产生不利影响。针对副产煤气利用的复杂情况,AMB、AMEH和BFI公司开发了高能效利用副产煤气的途径,应用于部分钢铁厂,如:改善煤气管网压力和流量分布的技术,具备供需分布显示和预报功能的煤气管理系统。介绍了煤气管网压力波动控制以及副产煤气利用的结果和经验。     

钢铁工业副产煤气资源化利用分析及案例

 在钢铁产品的生产过程中,同时产生大量的副产煤气,即高炉煤气（BFG）、焦炉煤气（COG）和转炉煤气（LDG）,在钢铁企业的能源平衡中占有十分重要的地位（约占全部二次能源产生总量的70%）。目前钢铁企业副产煤气大多数是燃料化利用,而副产煤气高附加值利用的另一个方向是开发副产煤气中碳元素和氢元素（H2、CmHn和CO等）价值,实现资源化利用。钢厂推进副产煤气资源化利用的核心是进行能量流（煤气流）的解析及其网络的优化,副产煤气资源化利用的主要途径有制取氢气、甲醇、液化天然气（LNG）、合成天然气（SNG）、压缩天然气（CNG）、合成氨、二甲醚、乙二醇、烯烃等化工产品。四川达钢焦炉煤气和转炉煤气制甲醇的案例研究表明,副产煤气资源化利用不仅能使钢铁企业的副产煤气资源得到高效利用,而且有显著的经济和环境效益。     

两段式热脱焦油煤气炉在环形加热炉上的开发应用

介绍了两段式煤气发生炉热脱焦油煤气在无缝钢管环形加热炉上的开发与应用 ,以及两段式煤气发生炉热脱焦油煤气站的设计和采用热脱焦油煤气代替重油所产生的经济效益     

钢铁企业副产煤气产耗预测方法研究进展

钢铁企业的副产煤气系统复杂且工况多变,副产煤气产生量和消耗量瞬时波动,容易引起副产煤气调度分配不当,进而造成大量放散,而对副产煤气产生量和消耗量进行精确预测是解决此问题的重要前提。文章通过综述钢铁企业副产煤气预测研究的文献,发现目前对于副产煤气的预测方法可大致分为:基于系统机理的预测方法和基于历史数据的预测方法。但二者都存在自身的局限性,而采用两者组合的煤气预测方法可以对各自的缺陷进行互补,具有很广阔的研究和应用空间。     

副产煤气在钢坯加热炉上的合理应用

介绍了钢坯加热炉对燃料(煤气)选用的基本要求及钢铁厂副产煤气(包括焦炉煤气、高炉煤气、转炉煤气)的成分与基本特性,分析了不同类型的钢坯加热炉对煤气应用的要求,提出了副产煤气在钢坯加热炉上应用的合理建议。     

China's Major Non-ferrous Metals Imports & Exports

正~~     

Zinc Production by Province in 2014

正~~     

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.     

Seven Rare Earth Projects Involving Close to 3 Billion Yuan Investment Landed In the HighTech Zone

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.