少渣炼钢工艺的进步与展望

阐述了少渣炼钢的工艺路线,分析了转炉少渣吹炼的供气制度、造渣制度、温度制度、合金化制度等,介绍了国内外7家钢厂典型的少渣炼钢工艺及其冶金效果,指出少渣炼钢是未来炼钢的主要发展方向。     

LD转炉半钢炼钢的造渣工艺

介绍了国内外提钒半钢及“三脱”半钢炼钢的造渣工艺特点，主要包括造渣剂的选择、半钢少渣炼钢及留渣操作等，并结合攀钢目前的生产条件就攀钢提钒半钢炼钢的造渣工艺进行了探讨，并实现少渣炼钢的可行性做了分析。     

太钢LD转炉少渣炼钢初探

本文叙述了太钢50tLD 转炉采用预处理(脱硅、脱磷)铁水进行少渣炼钢的工艺技术;总结了转炉少渣炼钢的生产试验结果;讨论了转炉少渣炼钢工艺的操作技术、冶金特点及规律。1前言- 转炉炼钢的传统工艺是使用普通高炉铁水。因此,为了脱硅、脱磷、脱硫需要加大量石灰而造成大量熔渣,大渣量吹炼带来种种缺点:金属收得率低,熔剂消耗高、冶炼时间长     

转炉双渣留渣工艺研究

介绍了转炉留渣双渣工艺操作过程,以及在生产过程中遇到的操作难点和解决方法。实践表明,实施该工艺可降低石灰消耗,提高脱磷效率,实现少渣炼钢等显著效果。     

120吨转炉“少渣炼钢”工艺的研究与应用

阐述了＂少渣炼钢＂工艺在济钢120吨转炉上的研究与应用情况。通过对＂少渣炼钢＂工艺机理的研究,对留渣量、前期枪位、倒渣时机、倒渣量以及加料模式等工艺参数进行了探索与优化,使石灰吨钢消耗控制在25 kg以下,钢铁料吨钢消耗控制在1 074 kg以下,取得了明显的经济效益。     

济钢45t转炉炼钢精益管理实践

面对日益严峻的市场形势,济钢炼钢厂45 t转炉采用精益管理思路,通过管理创新和工艺改进等措施,强化转炉炼钢生产过程的四流两届面管理模式,挖潜炼钢工序精益结构,实施"三渣回收一钢利用"管控体系,推行低铁耗少渣炼钢工艺。2014年降低生产成本10 767万元,吨钢石灰消耗降低9 kg,生产成本和各项经济技术指标得到良好的控制。     

转炉低Si铁水炼钢生产实践方法探讨

在转炉低Si铁水炼钢生产实践过程中,存在化渣困难等问题,容易出现脱磷困难、黏枪、炉衬侵蚀问题等,通过对低Si铁水炼钢工艺进行分析与研究,有针对性地提出生产优化方法,从而完成低Si铁水少渣炼钢,减少石灰消耗以及矿石、废钢等材料的应用,提高金属的利用效率。     

转炉炼钢生产技术的发展

总结了近几年国内铁水脱硫预处理、转炉复合吹炼与炉外精炼等主要炼钢生产工艺技术的进步.分析讨论了目前国内炼钢生产中存在的主要技术问题.进一步提出国内炼钢生产应研究开发少渣冶炼工艺、复吹转炉高效吹炼技术和吹炼终点动态控制技术等项重大共性技术.     

济钢低硅铁水吹炼工艺实践

介绍了低硅铁水的吹炼工艺实践。通过对少渣炼钢过程的理论分析,采用倒锥度氧枪、优化供氧及造渣制度、控制终渣碱度等措施,解决了低硅铁水炼钢的造渣、脱磷、脱硫、粘枪等技术难题,实现了低硅铁水条件下的少渣炼钢,降低了石灰消耗、提高了金属收得率。     

对攀钢实现少渣炼钢的探讨

介绍了国内外少渣炼钢的技术现状,分析了攀钢实现少渣炼钢的可能性,讨论了与少渣炼钢相关的一些技术问题。     

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.