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Four-level Drying Techniques of Fote Lignite Dryer

Bookmark and Share      Date: 20-10-2015     From: Fote Machinery     Author: Fote Machinery

Do you like the piano? Yesterday is the final round of 17th Chopin Piano Competition. As an editor of Fote Machinery, i watched this round from the Internet. It is so amazing. Hope you like. With regard to the winner, i don’t mention too much here. Now, let’s come to see the main body of this paper: four-level drying techniques of Fote lignite dryer. Under the premise of no-change for the quality of dried lignite, we Fote adopts the four-level drying techniques to make the water content in dried lignite less than 13%.

lignite coal dryer

For the primary drying area, water content in wet lignite is mostly dried under the high temperature of 400℃. Meanwhile, the chemical components in lignite can not be affected. For the secondary drying area, the drying temperature is about 300℃. In order to ensure the lignite free of coking, the wind being induced is in middle temperature. With regard to the tertiary drying area, the temperature varies from 120℃ to 210℃. Special devices for crushing and dispersing materials are equipped in the rotary drum of coal ash dryer, so drying effect is very obvious.

As to the quartus drying area, the temperature is the lowest varying from 60℃ to 80℃. Water content in lignite is mainly dried by the hot air in negative pressure. Technologies of crushing first, dispersing second and drying last make the drying details run continuously, industrially and automatically. Changes of Water content from about 25%-30% in raw lignite to less than 13% in dried lignite can be perfectly realized by the above technologies. Lignite dryer for sale: http://www.ft-dryer.com

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