高炉喷吹废塑料工艺技术探讨

介绍了国内外高炉喷吹废塑料工艺的研究进展,着重从化学成分、高炉内的反应情况、废塑料的分类回收以及塑料制粒角度说明了废塑料作为高炉喷吹燃料的可行性,并给出适合高炉喷吹废塑料的工艺流程,强调了废塑料与煤粉在风口前管路上混合能促进塑料和煤粉在回旋区更好地燃烧。     

高炉喷吹煤和废塑料混合燃料燃烧过程的数值模拟

采用数学模型预测高炉喷吹煤与废塑料混合燃料在直吹管的燃烧过程,数学模型包括气相流动、混合燃料的燃烧、辐射传热等子模型.模拟结果表明,燃料总的燃烧效率能达到90%以上,高炉喷吹煤与废塑料混合燃料在高炉的燃烧行为介于高炉单独喷吹煤粉和废塑料两者之间,高炉喷吹煤与废塑料混合燃料在理论上是切实可行的.     

高炉中喷吹废塑料的可行性研究（Ⅰ）：——废塑料与煤粉的燃烧特性对比研究

为了研究向高炉中喷吹废塑料的可行性,对几种常见废塑料与高炉喷吹用煤粉的燃烧特性进行了对比研究。结果表明：废塑料具有良好的燃烧性能;废塑料的开始燃烧温度和激烈燃烧温度都比煤粉低,燃烧时间较煤粉短,燃烧速度快,燃烧灰尽少,因此更有利于高炉喷吹。     

高炉喷吹废塑料技术及应用前景

从废塑料喷吹后的燃烧分析、对高炉冶炼的影响、能量的利用等多方面分析了废塑料应用于高炉喷吹的可行性。并分析了国外高炉喷吹废塑料的实践与进展。分析表明：高炉喷吹废塑料的技术既为废塑料的综合利用和治理“白色污染”开辟了一条很好的途径,也为冶金企业节约能源提供了一种新的手段。     

煤和塑料混熔喷吹技术研究

概述了国外高炉喷吹废塑料技术现状和国内研究进展,提出了煤与废塑料混熔高炉喷吹新工艺.对不同比例的废塑料与煤粉混合,在200 ℃的混熔温度下制成样品进行燃烧特性试验.结果表明:混熔样品具有良好的燃烧性能,开始燃烧温度和激烈燃烧温度都比煤粉低,塑料的存在对煤有提前燃烧作用,废塑料混熔比例在25%时燃烧时间较煤粉短,燃烧速度快;废塑料与煤混熔对高炉喷吹技术,理论上是可行的.     

高炉喷吹煤和废塑料混合燃料的可行性研究

分析了高炉喷吹混合燃料的可磨性、黏结指数和胶质层厚度等对高炉冶炼的影响,并对高炉喷吹煤粉、喷吹煤粉与废塑料混合燃料进行了燃烧模拟。结果表明,高炉喷吹煤与废塑料混合燃料在理论上是可行的。     

当前我国高炉喷吹废塑料的合理性分析

通过对废塑料的物化性能和其在高炉内的燃烧机理的分析,从环保、效能以及工艺技术的科学性上提出了高炉喷吹废塑料的合理性,同时指出了我国当前实施高炉喷吹废塑料新工艺尚需解决的问题。     

高炉喷吹废塑料的现状及前景

通过对国我高炉喷吹废塑料的实践分析，探讨了我国高炉喷吹废塑料的可行性，高炉喷吹废塑料技术为治理“白色污染”、节约能源增加企业效益提供了一个良好的途径。     

废塑料应用于高炉喷吹的技术现状及展望

通过对国外高炉喷吹废塑料的实践分析，探讨了我国高炉喷吹废塑料的可行性，以及高炉喷吹废塑料技术为治理“白色污染”，节约能源及增加企业效益，提供了一个良好的途径。     

高炉喷吹废塑料与喷吹煤粉比较分析

从工艺流程、原料化处理工艺及在高炉中能量利用三方面对高炉喷吹煤粉和废塑料进行比较分析可以看出,高炉喷吹废塑料和高炉喷吹煤粉一样可以作为高炉辅助喷吹燃料技术,高炉喷吹废塑料不仅为高炉炼铁提供了燃料,更能解决废塑料造成的环境污染问题,是兼顾社会效益、环境效益和生产效益的综合利用技术。     

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.     

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.