Sizing stage

Dry screening section

The shavings output from the wet silo are sent to the rotor dryer via the screw conveyor. The dried shavings are sent to the screening machine by the screw conveyor for screening. The discharge screw conveyor of the dryer is equipped with a spark detection device. Once an alarm is issued, the dry material can be automatically discharged out of the system. The sieved coarse shavings enter the re-shredder for reprocessing, and together with the sifted medium and coarse shavings, they are sent to the air-flow separator by the screw conveyor for sorting. The qualified fine materials selected are air sent to the surface particle silo. The qualified materials sorted by the air separator are air sent to the core layer shavings bin for intermediate storage. The sorted coarse material enters the grinder to be crushed, and then merges with the fine shavings that have been screened out, and is blown to the surface shavings silo. According to the different ratios of surface and core layer shavings when producing different board thicknesses, part of the medium and coarse shavings can be quantitatively transferred to the grinder to make surface layer shavings.