Coal particle size for Lurgi furnaces
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This post was last edited by huixuandemeng on 2011-11-24 at 10:35. The coal particle size for Luqi furnaces is usually 5–50 mm; is it possible to change this to 10–50 mm? What impacts would this have?
A larger particle size results in changes in the feed volume for gasification, due to the larger void spaces. The gasification effect will be better because of the larger particle size, which increases the surface area.
It’s because the smaller particle size increases the surface area, which in turn facilitates gasification.
For pressurized gasification of coal dust, the particle size of the coal fed into the furnace must be such that 90% or more is within the range of 13–50 mm. So changing the particle size range to 8–50 mm will definitely be no problem.
Reply to 3# huixuandemeng: Give it your support; the smaller the particle size, the greater the specific surface area； {:1_90:}
A wide range of pressures simply means that this type of furnace can handle raw coal with a broad range of particle sizes! Different owners can decide based on the specific circumstances of your raw material source; there’s no such thing as it not being possible! Specifically, during the production process, it would be better to have a narrower particle size range within each furnace! !
For young lignite with a high moisture content, it is necessary to appropriately increase the particle size of the coal fed into the furnace.