What are the discharge methods for industrial boilers?

Industrial boilers will produce wastes that needs to be treated during the use process, which is what we mentioned of boiler blowdown. What are the methods for boiler blowdown?

1. Regularblowdown
1) The time interval and quantity of discharge depend on the test results of boiler water. It usually do not exceed 5% of the water supply.

2) When the regular blowdown is being made under high load of the boiler, the blowdown of the water-cooled wall header is generally not required to avoid affecting the normal water circulation of the water-cooled wall and forming a tube explosion incident.

2. Continuous blowdown
The amount of blowdown shall be determined according to the test results of the boiler water, and shall be completed by adjusting the needle-shaped angle of the blowdown tube. The sewage can be flowed into the pressure expansion tank so that the secondary steam generated due to the pressure drop can be reused meanwhile the wasted water is discharged from the expansion tank, in order to improve the thermal efficiency.