广东电力Issue(9)：37-42,91,7.DOI:10.3969/j.issn.1007-290X.2015.09.008
600 MW 亚临界机组劣质煤掺烧试验研究
Research on Blending Combustion Testing on Fault Coal of 600 MW Subcritical Unit
林德平1
作者信息
- 1. 山西鲁晋王曲发电有限责任公司，山西 长治 047500
- 折叠
摘要
Abstract
This paper studies load carrying capability,security and economy of the boiler and coal pulverizing system after 600 MW subcritical unit co-firing with fault coal of high moisture andlowcalorific value.Results indicate that blending combus-tion with fault coal of high moisture and low calorific value may reduce drying capacity of the pulverizer and affect load car-rying capability and load variation rate of the boiler,so it is ought to reduce mixing proportion of fault coal when the boiler running with high load.Secondly,acid dew point of fuel gas obviously increases when co-firing with fault coal of high mois-ture and high sulfur content and low temperature corrosion aggravates as well.For fault coal easy to coking,it is able to ob-viously relieve coking by means of furnace mixing for co-firing with coal not easy to coking.Influence on the boiler efficien-cy is big by excessive air and air distribution mode while inverted-triangle air distribution mode is good for reducing heat loss of blending combustion with fault coal and producing NOx .In addition,blending combustion with fault coal may reduce boiler efficiency but entire economic benefit of the unit may increase.关键词
600 MW 机组/劣质煤/掺烧/经济性/安全性/配风/低温腐蚀Key words
600 MW unit/fault coal/blending combustion/economy/security/air distribution/low temperature corrosion分类
能源科技引用本文复制引用
林德平..600 MW 亚临界机组劣质煤掺烧试验研究[J].广东电力,2015,(9):37-42,91,7.
