Triple Pass Rotary Drum Dryer Machine for Drying Wood Shavings

Upon years develope, optimization and actual experience in the drying field of the wood shavings, the triple pass rotary drum wood shavings dryer machine is very suitable for drying wood shavings, wood chips in bulk production. 

Triple Pass Wood Shavings Dryer Machine has the stable good work performance, and it has the features of compact structure, Smaller working area needed, Less land occuptation area needed,  less invest cost, less energy consumption, high heat exchaging efficiency, less wood shavings breakage rate, etc.

Triple-pass rotary drum type Wood Shavings Dryer Machine working principle is as follows:

Wet wood shavings moves through the triple-pass drum together with hot air stream created by the high pressure induced draft fan. The three cylinders (drum) are concentric and are mechanically interlocked to rotate at the same speed.

Wood shavings are repeatedly carried to the top of each cylinder by internal and external flights so they are constantly and intimately showered through the hot gas. Moisture inside the wood shavings is evaporated continually when they move along the hot air stream.

Heavier, wet particles of wood shavings move slower than fine particles -- forward through the center cylinder, back through the middle cylinder and again forward through the outer cylinder to the induced draft fan at the discharge end. The warm damp exhaust gases are separated from the dried wood shavings in the primary cyclone separator, and fall out the bottom onto a vibrating screen to remove the fines.

Precise control of exhaust air temperature assures accurate moisture control, without product degradation. Controls react instantaneously to any temperature change, and immediately adjust the heat input to assure uniform drying and accurate control of the moisture content of the finished product.

For the triple pass rotary wood shavings drying system, Sunco Machinery also supply the sawdust and waste wood as fuel for the hot air furnace, and Sunco Machinery will produce well the hot air furnace well at the factory. It will save much installation time and money for the users.