1. Raw Material Pretreatment Stage

First, screen the wet veneers after peeling to remove unqualified boards with surface damage, insect infestation, adhesive contamination, etc., ensuring the quality of raw materials entering the drying process. 

Then, according to the size requirements of the equipment's longitudinal feeding, use cutting equipment to cut the wet veneers into blanks of uniform specifications, and at the same time remove burrs and irregular parts on the edges of the veneers to reduce the risk of jamming in the subsequent transportation process.

 After cutting, the veneers are initially classified and stacked, grouped by material and thickness, to prepare for the setting of differentiated drying parameters.

2. Equipment Commissioning and Parameter Setting Stage

According to the specific characteristics of the veneers to be dried (such as hardwood/softwood material, 1-5mm thickness range, initial moisture content), preset the drying parameters through the equipment's PLC control system: adjust the roller temperature to the appropriate range to ensure uniform heat conduction; set a reasonable roller speed to control the veneer conveying speed, and appropriately reduce the speed for thick veneers to ensure sufficient drying; at the same time, adjust the hot air temperature and dehumidification air volume to form a coordinated drying environment of "conduction + convection". 

After commissioning, check the flatness of the roller surface, the pressure of the pressing guide roller and the tightness of the dehumidification system to ensure the equipment is in a stable operating state.

3. Continuous Drying and Conveying Stage

After starting the equipment, the pretreated wet veneers are uniformly fed into the dryer through the feeding conveyor belt. The veneers enter the roller group under the guidance of the upper and lower pressing guide rollers, and closely fit the surface of the high-temperature rollers to achieve rapid heat conduction. 

During the transportation process, the hot air system continuously blows hot air to the surface of the veneers from the roller gaps to accelerate moisture evaporation. The evaporated moisture is timely discharged by the negative pressure dehumidification system to avoid accumulation inside the equipment affecting the drying effect.

 When the veneers pass between two sets of rollers, the internal stress is relieved by the lateral free shrinkage space, reducing the occurrence of cracks. The whole process realizes continuous operation, and the veneers do not need to be shut down for processing midway, ensuring production efficiency.

4. Finished Product Inspection and Post-treatment Stage

The dried veneers are output from the equipment's discharge end. First, use a moisture content tester to randomly sample and test the veneers to ensure that the moisture content meets the process standards (usually 8%-12%). 

At the same time, check the surface flatness of the veneers to confirm that there are no defects such as cracks, warpage, and damage. 

Cool the qualified veneers to make their temperature consistent with room temperature, avoiding condensed water due to temperature difference during subsequent stacking. 

Finally, classify and stack the qualified finished products according to specifications, mark them clearly, and transfer them to the gluing process or finished product warehouse to complete the entire drying production process.