The whole system is used to automatically load the cut wet blank onto the tray or the tow bar, and automatically transfer it to the chamber drying chamber or the tunnel drying kiln through the drying cart and/or the shuttle bus for drying, and then the drying is completed. The slabs are automatically removed from the drying cart, tray or pallet and transferred to an automatic blank. The whole system can be fully automatic and controlled by Siemens PLC system.