■ Hot air drying type
Mainly based on the smoke and gas in the boiler,send the smoke and gas into the pipes in dryer,the hot pipes will distribute heat to finish the drying work.However, only production lines under 5 million square meters year capacity are suitable,and with lower cost and investment.It’s better choice for the small user.Nevertheless,the drying type is being eliminated gradually because of its some faults,such as, quality of board is hard to control,waste board rate is higher and service life is shorter.
■ Thermal oil drying type
This drying type is the most popular drying method across the world.With energy-saving and low consumption,this equipment is easy to control and adjust.
But with a higher cost, it has a longer service life. Especially for the medium and large production line over than 5 million square meter year capacity.