Improve the Heat Change Efficiency of Rotary Drum Dryer Machine

Rotary dryum dryer is a drying machine, it can be widely used in mining machine, How to improve the drying effeciency of rotary drum dryer is te most consider problem. So we need to improve the rotary drum dryer drying production. we improve the rotary drum dryer production from the heat change aspect.

In the direct heat transfer rotary drum dryer, the main heat transfer way between the wet material and the hot air is convection current; there is heat radiation way as supplementary. In order to fully use the convection current process, there is throwing plate or rack (spoon-like) in the rotary drum which raise the materials up to add the contact surface of the material and the hot smoke, thus improve the heat change efficiency and speed up the evaporation rate.

From the fair current and adverse current rotary drum dryer material and temperature distribution curve we can see due to the large temperature range, the efficiency of the fair current drum dryer is lower than the adverse drum dryer. The moisture is decreased to close to 1%, to get rid of the 1% moisture needs more heat which is not worth the candle.

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sand dryer: http://www.zd-dryer.com/index.html

sand rotary dryer: http://www.zd-dryer.com/index.html