乙炔脉冲吹灰装置在沸腾炉余热锅炉上的应用

锌精矿沸腾炉余热锅炉高温烟尘粘结清理问题,不仅直接影响了余热锅炉的使用效果,而且严重制约了整个沸腾炉系统的正常运行。本文阐述了乙炔脉冲吹灰装置在锌精矿沸腾炉余热锅炉的开发应用及使用效果。     

延长沸腾炉余热锅炉运行周期的途径

介绍了４２ｍ＾２沸腾炉余热锅炉通过我厂工程技术人员的不断摸索总结,积累了许多生产实验结构,对余热锅炉进行了一系列改造和完善,使余热锅炉运行周期不断延长,实现了余热锅炉与沸腾炉同步运行的情况。     

株冶集团沸腾炉监控系统成功升级

日前,株洲冶炼集团有限责任公司质量保证部成功地将两台沸腾炉计算机监控系统升级完毕并投运,写下了株冶生产过程控制史上的新篇章。1#,2#沸腾炉及余热锅炉DCS(数据采集)计算机系统,担负着监控锌焙烧龙头———沸腾炉系统近50个生产关键工艺参数的任务,是锌焙烧生产的中枢神经。该系统已安全运行多年,并屡创同行新高。随着现代信息技术的飞速发展,沸腾炉及余热锅炉DCS的相关硬、软件设备特别是软件系统已很难得到生产厂家的技术支持(生产厂家早已升级换代),软件核心部分一旦出现致命问题,将导致沸腾炉生产的全线瘫痪。2005年以来,这种事…     

24m2沸腾炉系统余热锅炉的改进

余热锅炉是一种非标设计、非标制作的锅炉，它运行的好坏与其所配置的冶金炉烟气性质有着非常密切的关系。本介绍了我厂24m^2锌焙烧沸腾炉余热锅炉在结构及配置等方面进行改进前后的不同状况。     

梅山硫精矿的综合利用及效益

介绍了梅山矿业公司自产硫精矿的综合利用情况。硫精矿沸腾焙烧的炉气经水洗净化干燥后,是浓度分别为92．5％和98．0％的两种成品硫酸;制酸后的酸渣和烟尘,作烧结铁原料。废水加石灰处理后,循环使用;硫精矿在沸腾炉焙烧过程中产生的高温余热,通过余热锅炉产生蒸汽带动汽轮机发电。从而使硫精矿在制酸过程中产生的废渣、废水和废气余热全部得到了合理使用,取得了较好的经济效益和社会效益,实现了企业的可持续发展。     

23t/h余热锅炉破管原因分析与处理

针对23 t/h余热锅炉存在破管故障高、严重影响诺兰达炉铜生产系统连续正常作业的问题,采取对辐射室水冷壁等更换、在锅炉管件炉内侧增设防磨套管等技术方案,减少了烟气对管件的磨损、腐蚀。从而有效地减少了锅炉破管次数,保证了系统正常运行。     

激波吹灰系统在电石炉余热锅炉中的应用

电石炉在生产过程中产生大量的灰分,对其后部的余热锅炉影响较大。通过对电石炉产生灰分的特性分析,结合电石炉余热锅炉中传统吹灰方式的特点,从排烟温度的高低、操作方法的难易程度等方面,阐明了激波吹灰系统相对正压钢珠吹灰系统的优势。根据实际电石炉厂余热锅炉应用激波吹灰系统的排烟温度数据,证明了激波吹灰系统应用于电石炉余热锅炉是安全有效的,能满足余热锅炉长周期的运行要求。     

转炉余热锅炉运行实践及其改造思路

针对大冶有色金属股份有限公司冶炼厂转炉余热锅炉运行实践,结合现行余热锅炉热力系统设置及作业习惯,分析余热锅炉变化急剧的运行工况对锅炉受热面承压部件的低温腐蚀和低周疲劳之机理,提出余热锅炉改造思路,以期解决锅炉安全运行问题。     

有色冶金炉余热锅炉设计探讨

本文详细介绍了国内外有色冶金炉余热锅炉的发展概况,技术性能及结构特点,通过国内某厂锌沸腾炉余热锅炉结构分析,简要阐述了余热锅炉的设计程序和设计要点,并指出采用膜式水冷壁、直通道、强制循环和高效弹性振打清灰是我国有色冶金炉余热锅炉的发展方向。     

转底炉烟气系统堵塞、腐蚀及防腐探索

烟气余热利用系统是转底炉生产工艺重要的组成部分,余热锅炉又是烟气余热利用系统的核心设备。对转底炉烟气特性进行了分析,重点介绍了某钢厂转底炉烟气余热利用系统工艺流程及工艺参数;对烟气余热利用系统堵塞、锅炉管腐蚀原因进行了分析,在实践基础上,提出了烟气余热利用系统防堵、防腐蚀的措施,并对余热锅炉防腐进行了有益探索。通过这些措施的实施,减轻了烟气余热利用系统的堵塞和腐蚀,并在转底炉实际生产中得到了验证,为解决转底炉烟气余热利用系统堵塞、腐蚀提供了有益的借鉴。     

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.