竖罐炼锌还原剂煤的合理选择与使用

竖罐炼锌对蒸馏炉料——团矿的质量有严格的要求,即要求机械强度高(赤热状态下)、气孔率高、锌品位高、还原性好和焦结后的温度高。团矿质量的好坏是影响竖罐炼锌技术经济指标的主要因素。团矿主要是由焙砂及炭质还原剂所组成,炭质还原剂的合理选择与使用,对获得质地优良的团矿有着十分重要的作用。     

还原性洗精煤在竖罐炼锌过程中的使用

本文结合生产实践,介绍了还原性洗精煤的化学、物理性能对团矿制备及竖罐炼锌的影响,探讨了在竖罐炼锌过程中还原性洗精煤的使用方式。     

粘合剂对竖罐炼锌团矿的影响

阐述制备竖罐蒸馏炼锌团矿过程中,粘合剂的质量、使用条件等因素对团矿质量的影响,以及如何使用粘合剂来提高团矿质量.     

当代竖罐炼锌技术述评

回顾了竖罐炼锌等锌冶炼技术的历史,介绍了近年来竖罐炼锌技术的进步及发展方向,认为竖罐炼锌技术仍然有发展空间,值得继续研究。     

当代竖罐炼锌技术述评

回顾了竖罐炼锌等锌冶炼技术的历史，介绍了近年来竖罐炼锌技术的进步及发展方向，认为竖罐炼锌技术仍然有发展空间，值得继续研究。     

老企业开新花——新型焦结炉试验成功

葫芦岛锌厂是个具有三十多年生产历史的老厂,其主要工艺为竖罐炼锌,它以氧化锌矿和还原煤为原料,经过混合、碾压、制团、干燥、焦结等工序后,将有一定机械强度和温度的焦结团矿加入竖罐,产出蒸馏锌。与世界上采用的炼锌工艺相比,该厂生产锌耗能量较大,约为14×10~6千卡/吨锌,而密闭鼓风炉炼锌和湿法炼锌仅为10×10~6千卡吨/锌,从而影响了竖罐炼锌的发展。影响能耗的因素很多,其主要有配料中配煤比、焦结炉能耗等。针对此问题,     

用重油代替冶金焦干燥团矿

我厂竖罐炼锌过程中,需对团矿预先进行干燥。长期以来,我厂团矿干燥一直采用冶金焦做燃料,     

竖罐炼锌残渣回收技术的现状及展望

介绍了利用旋涡炉技术回收竖罐炼锌残渣的现状及工艺特点 ,分析了竖罐炼锌企业残渣处理的重要性和残渣处理技术的发展趋势 ,论述了利用奥斯麦特技术处理竖罐炼锌残渣同时冶炼铜精矿生产冰铜这一新技术的可行性。     

竖罐炼锌用还原煤配煤技术的探索

对竖罐炼锌用还原煤的配煤方法进行了探索,提出了竖罐炼锌用还原煤配煤技术的新思路。以炼焦的配煤原理指导竖罐炼锌配煤,控制煤的挥发分和粘结性,可使配煤方法更为简便。     

竖罐炼锌生产的强化途径分析

分析了竖罐炼锌技术进一步发展的可能性,提出了发展竖罐炼锌技术必须解决的问题。     

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.