The load of wood must be prepared in advance. An air space is required between each row of wood to achieve proper air circulation. Wood or iron strips 20 mm thick are recommended for spacing.
The prepared load is placed on the mechanized carriage for introduction inside the drying oven chamber. Then, the door is closed on the oven jamb by two electric motor driven screws to achieve perfect air-tightness.
The operator programs the drying cycle taking into account the humidity percentage, cross section dimensions and species. The drying cycle may then be started.
The system next proceeds to a series of controls for the proper functioning of all these elements.
-If an anomaly is detected, it will indicate the type and what to do. It will not start as long as the anomaly has not been corrected for proper operation.
According to the program adapted to the load by taking into account the species, the humidity percentage and the cross section dimensions of the wood, the operator may select the differential between the oven’s ambient temperature and the wood’s inside temperature.
In addition to the original heat drying programs, the operators may develop new ones according to their experience and specific needs.
At the end of the drying cycle, before the door is opened, the load is cooled by injecting water inside the chamber and the water is transformed into steam.
-This injection is done sequentially to avoid sudden temperature lowering and material deterioration.
When all the proper operation parameters are reached, the oven unloading command will be displayed on the monitoring screen.
-As long as the operator has not carried out the manual stopping procedure, the computer program will stay in standby mode. The probes, ventilation, water injection, etc. will always be monitoring and will wait for the stop command.