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Alternative TitleNozzle Ring Transformation of Medium Speed Coal Mill in 1000MW Generating Unit
龚九洲; 李涛; 郭庆; 吴运国
Source Publication机械设计与制造
Contribution Rank2
Funding Organization国家863计划资助项目(2009AA04Z203)
Keyword中速磨煤机 风环 磨煤机出力 褐煤掺烧
Other AbstractIn order to solve the problems such as big residue,nozzle ring blockage,pulverizer capacity shortage and so on,it was proposed to upgrade the nozzle ring of medium speed coal mill. The number of the nozzle ring was distributed reasonably,and the streamline shape of the blade was optimized,the flow area was guaranteed. The bottom of the nozzle ring was outward in tilt angle and was designed as horn. The primary air was split into two parts and form the condition that blowing upward and broadwise. The texture of the nozzle ring was altered,KmTBCr20 was used and the abrasion loss was reduced. The adjustable damper device was set to compensate the abrasion of the coal mill. The pulverizer capacity was improved,the grinding ability was increased,the wearing capacity was reduced and the service life was extended. Meanwhile it meet the needs of mixed lignite and the generating cost was reduced.
Document Type期刊论文
Recommended Citation
GB/T 7714
龚九洲,李涛,郭庆,等. 1000MW机组中速磨煤机风环改造分析[J]. 机械设计与制造,2015(2):129-131.
APA 龚九洲,李涛,郭庆,&吴运国.(2015).1000MW机组中速磨煤机风环改造分析.机械设计与制造(2),129-131.
MLA 龚九洲,et al."1000MW机组中速磨煤机风环改造分析".机械设计与制造 .2(2015):129-131.
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