首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 46 毫秒
1.
针对当前烧结机燃油点火器能耗高、寿命短、点火不均匀等现状,研制开发了一种聚焦辐射式燃油节能点火器。这种新型节能点火器采用曲面聚焦并在炉壁上喷涂高黑度辐射涂料,在料面宽度方向上可以形成均匀的点火料带,从而实现快速、均匀点火。工业应用表明该点火器具有明显的节能效益。  相似文献   

2.
夏德宏  吴永红 《工业炉》2004,26(3):19-22
针对当前烧结机燃油点火器燃料费用高、寿命短、点火不均匀等现状,研制开发了点火器喷嘴顶部布置的燃用水煤浆的烧结机点火器。工业应用表明该新型节能点火器具有理想的点火效果,能够有效地提高烧结矿质量与产量,并且还能大幅度延长点火器的寿命,经济效益和环保效益显著。  相似文献   

3.
总结了鞍钢烧结总厂新三烧车间2,3号烧结机用采用幕帘式点火器以来的使用情况,并与分流式点火器进行了对比,实践表明,幕帘式点火器具有点火均匀,热效率高,节能效果显著及寿命长等特点。由此可创造可观的经济效益,具有很高的推广价值。  相似文献   

4.
1 前言点火是烧结工艺过程的一个重要环节,点火器是一种连续高温燃烧炉。长期以来点火器存在的问题是:点火质量差;点火能耗高;寿命短。其中点火能耗高是主要问题。所以点火器改造的目的是在不断提高点火质  相似文献   

5.
1 前言目前,中、小型烧结机多采用大烧嘴点火器,这种点火器由于烧嘴个数少(一般6~8个)、燃烧室高,最佳火焰很难复盖料面,因而点火不匀、点火热量不足、热损失大、能耗高。而且设备庞大,维修、更换  相似文献   

6.
烧结点火作业是烧结工艺过程中的一道关键工序。其点火装置的适宜与否,不但决定着气体燃料消耗量,并对烧结矿的产质量以及烧结过程中其它燃料、动力的消耗都有很大的影响。因此,如何选择合适的点火器,早已引起国内外烧结界的重视。近年来国内外对点火器及烧咀的结构进行了多种类型的改进,并取得了显著的节能效果。国内最好的武钢点火能耗为0.063GJ/t,上海宝钢为0.077GJ/t,已接近世界点火能耗的先进水平。而我们太钢烧结厂点火能耗为0.130GJ/t。为了赶超先进水平,我们于1992年采用多缝式烧咀点火炉。并在使用前后进行多方面的改进。两年来的生产实践证明,设备运转正常点火均匀质量高,节能效果明显,点火能耗大大降低。节约煤气30%—40%。  相似文献   

7.
常玉洁 《工业炉》2003,25(1):38-40
点火器是烧结生产的关键设备 ,点火器的点火效果直接影响到烧结矿的质量、产量和能耗。主要介绍小烧嘴大密度排列形式的点火烧嘴及点火器炉体的设计  相似文献   

8.
本文对锰矿烧结中预热点火法实机应用的理由与效率进行了总结,认为预热点火工艺可以消除点火器结瘤,大幅度降低焦粉消耗,是一种简单易行、效果显著的新工艺,值得完善与推广。本文还对点火器改造与努力方向作了评价。为了解决新余钢厂锰矿烧结生产中点火器结瘤问题,降低焦粉消耗,新余钢铁厂第一烧结车间在实验室与工业性试验的基础上,确定了在烧结机上先预热后点火的点火工艺制度(以下简称预热点火法),并于1984年6月利用大修机会改造了1~#点火器。一年的生产实践表明,点火器结瘤问题基本得到解决,焦粉单耗大幅度下降。本文将对锰矿烧结预热点火法的实践进行总结与展望。  相似文献   

9.
在苏联的耶纳基耶沃烧结厂,已设计和应用一种长点火器,用间接辐射加热法对烧结矿表面层进行保温处理。结果,改善了气体燃料的燃烧状况,提高了点火器的热效率。因而混和料的点火效果比较好,烧结矿合格率提高5.64%(绝对值),固体燃料的消耗降低2公斤/吨烧结矿,同时烧结矿强度也有所提高。  相似文献   

10.
近年来日本各钢铁企业在改进烧结机点火器方面有较大的进展。如住友金属的小仑、鹿岛及川崎制钢的千叶厂等,多采用节能型单排烧咀点火器进行集中点火,在节能方面取得了显著效益。例如:小仑3号烧结机(222米~2)的点火器采用单排烧咀集中点火,点火器长度仅1.8米,后面未设置保温  相似文献   

11.
12.
13.
<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  相似文献   

14.
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,  相似文献   

15.
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  相似文献   

16.
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  相似文献   

17.
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,  相似文献   

18.
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.  相似文献   

19.
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.  相似文献   

20.
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.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号