The solution of byproduct is put into the spray drying tower.By sprayed drying, the byproduct droplet is transformed into granule and recycled, while the flue gas is humidified and cooled.

• 将产物溶液喷入喷雾干燥塔，雾滴蒸发干燥形成较大的铵盐颗粒，加以回收，同时使烟气增湿降温。