120t转炉滑板挡渣的应用及效益分析

转炉出钢挡渣方式一般分为滑板挡渣、气动挡渣以及挡渣锥挡渣。目前普遍采用挡渣锥挡渣，此挡渣方式对炉衬的维护以及人员操作要求较高，生产中容易造成出钢下渣，挡渣成功率在90%～95%;气动挡渣设备要求较高，后期维护困难；滑板挡渣效果较好，滑板挡渣对设备要求较低，后期容易维护，且能有效减少下渣，配合下渣检测的使用，挡渣成功率可以达到98%以上，效益显著。     

300t转炉闸阀式挡渣技术的应用

从挡渣球挡渣法、气动挡渣法到挡渣塞挡渣法的发展状况,评述了这几种挡渣技术在实际转炉挡渣过程中的原理、特点和效果。介绍了宝山钢铁股份公司采用新的挡渣工艺——转炉闸阀式挡渣技术的生产实际情况,应用结果表明,闸阀式挡渣效率大于95%。     

转炉挡渣出钢的方法有哪些?

<正>答:为提高转炉挡渣效果,国内外在挡渣技术方面进行了深入研究,自1970年日本发展挡渣球出钢挡渣方法以来,各国为完善挡渣技术,发明了十几种挡渣方法。从挡渣技术的发展趋势来看,国外正在逐步从有形挡渣法向无形挡渣法方向发展。由于用挡渣球等有形挡渣物挡渣,材料消耗高,挡渣效果不理想。国外不少钢厂已采用了无形挡渣法,并配     

转炉出钢挡渣方法

介绍了国内外转炉出钢挡渣的十几种重要方法 ,介绍了转炉挡渣的发展趋势为从有形挡渣向无形挡渣进化 ,无形挡渣配备炉渣检测装置可实现自动控制挡渣 ,这种效果好、可靠、费用低的挡渣法将成为一种发展趋势     

挡渣塞法挡渣工艺研究与应用

本文简述了挡渣塞法挡渣工艺在我厂的应用情况。试验证明 ,挡渣塞法挡渣效果明显优于挡渣球法 ,而且满足了新工艺的要求 ,挡渣成功率达 90 %     

悬挂挡渣塞在宣钢150t转炉生产中的应用

介绍了宣钢150 t转炉悬挂式挡渣装置的性能、主要参数、工作方式、事故处理,对比了挡渣球出钢挡渣和挡渣塞出钢挡渣的使用效果,最终确定了挡渣塞出钢挡渣工艺。生产实践表明,150 t转炉采用挡渣塞挡渣出钢,可有效控制出钢下渣量,减少钢水回磷,提高了钢水质量和合金收得率,实现了降本增效的目的。     

基于PLC自动控制和红外下渣检测的滑板挡渣技术应用

通过对转炉出钢过程中前期渣、中期渣和后期渣的分析,系统对比了挡渣球、挡渣塞、气动挡渣和滑板挡渣等挡渣方式的挡渣效果。滑板挡渣通过PLC自动控制系统采集转炉倾动角度,同时利用红外下渣检测判断下渣量。根据挡渣工艺要求,滑动水口的全开或全闭可在0.5 s内自动完成,实现出钢过程中前期渣、中期渣和后期渣的最有效阻挡。与其他挡渣方法相比,滑板的挡渣成功率达到100%,转炉出钢下渣量控制在50 mm,回磷稳定控制在0.002%以下,降低了钢水氧化性,减少了合金消耗,提高了转炉成分命中率。     

转炉挡渣工艺的发展与应用

介绍转炉挡渣工艺的发展情况,重点分析了3种典型的转炉挡渣工艺.滑板挡渣技术挡渣成功率高且稳定,效果最佳,钢包渣层厚度可以稳定控制在50 mm以下;气动挡渣技术作为无形挡渣技术的代表,在运行成本方面存在一定优势;挡渣棒挡渣技术则由于适中的投资和良好的挡渣效果,应用最为广泛.     

国内转炉挡渣技术的探讨

经过多年发展,转炉挡渣技术已有了长足发展,挡渣塞和滑动水口已渐渐成为挡渣技术的主要发展方向.实现挡渣设备的自动化和小型化,提高挡渣操作的成功率,会扩大挡渣技术的应用领域.     

国内转炉挡渣技术的探讨

经过多年发展,转炉挡渣技术已有了长足发展,挡渣塞和滑动水囗已渐渐成为挡渣技术的主要发展方向。实现挡渣设备的自动化和小型化,提高挡渣操作的成功率,会扩大挡渣技术的应用领域。     

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.