Flash Tube Dryer

Wet material is injected via a blow-line into the dryer and pneumatically conveyed through the dryer duct and dried to the required moisture content. High efficiency cyclones separate the fibers from the gas stream. Fibers are discharged via airlocks. A portion of the exhaust gases can be reused in dryer installations with recirculation air operation.

Application

Drying of wood fibers for MDF, HDF and insulation boards

Customer benefits

High throughput of more than 60 t/h b.d. possible

Dryer and air grader from a single source, i.e. optimized investment and operational cost

Customized energy concepts

Automatic process control

Safe design according to high European standards

Up to 15% energy cost savings with an adjustable recirculation air operation

Technical features

Alternatively single or two stage dryers

Adjustable final moisture related to downstream processes (e.g., EVOjet M gluing)

Combined steel structure for both dryer and air grader

Pressure shock proof design according to ATEX directives

Explosion pressure relief by certified rupture discs

Interlocking sequence for all safety relevant alarms

Automatic spark detection and deluge systems

Stainless steel dryer duct (optional)

Efficient usage of various energy sources:

Mixing chambers for flue gases from grate firing system, gas turbine, boiler house and diesel generator
Burner systems for wood dust, natural gas, light or heavy oil
Heat exchangers for thermal oil, saturated steam and hot water

Exhaust gas for heat recovery: