Title: Research on drying of Indonesia's high moisture lignite
Abstract:Steam tube rotary drying technology is applied to research the static and dynamic drying characteristics of Indonesia's high moisture lignite.The characteristic test of drying rate show that,keeping l...Steam tube rotary drying technology is applied to research the static and dynamic drying characteristics of Indonesia's high moisture lignite.The characteristic test of drying rate show that,keeping lignite size and quantity unchanged,the higher the temperature of dry steam,the faster the evaporation rate as well as the lignite drying rate.Keeping quantity constant,the smaller the size,the shorter the drying time and the greater the drying rate.Keeping size constant,the smaller the quantity,the shorter the drying time and the greater the drying rate.The inflection point of drying rate curves occurres when the coal moisture is higher than that of air-dried moisture,which means deceleration phase begins.Analysis of size distribution and thermal stability shows that,the lignite drying process would produce coal fines,which increased by 14.87 percent after drying.Before drying,the TS6 is 10.3 percent,which increased to 19.2 percent after drying.The thermal stability of lignite before and after drying treatment is poor,however,it tends to be more stable after drying.Reaction start temperature(RI) and burn-out index(Cb) have merely reduced respectively by 7 ℃和0.1112.That means,the lignite,no matter drying or not,readily ignite and burn out.Read More
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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Cited By Count: 1
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