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Study on Lignite-Blended Burning Technology in the 1025t/h Bituminous Boiler
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Energy and Power Engineering·Volume 01 (2009)·Pages 116–121·Published 1 December 2009·DOI10.4236/epe.2009.12018
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Abstract
Due to a serious shortage of the coal in Tonghua, a retrofit solution of mixing warm flue gas extracted from reversing chamber into the coal pulverizing system and cold air into the hot air coal pulverizing system is proposed so as to reduce oxygen content. At the end of the pulverizing system and medium temperature of the conveying system, dual-channel combustion burner is transformed into horizontal bias combustion burner. The measurement results show that 50% ratio of lignite blended in the 1025t/h bituminous boiler is feasibility. It is also an important technology to reduce NOx pollutant emission.
Keywordscoal pulverizing systemblended coal burninglignitewarm flue gasexplosion preventiondrying capacity
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