Spray drying apparatus and air pollution control system

摘要

A spray drying apparatus includes: a gas inlet provided in a side wall in the vicinity of a top (lid) portion of the spray drying apparatus, for introducing a flue gas for drying a spray of dehydrated filtrate; flow-adjusting plates provided in a body of the spray drying apparatus, for decelerating the introduced flue gas so as to change the flow of the flue gas to a laminar flow; a spray nozzle for spraying the dehydrated filtrate from the desulfurization waste water into the flue gas having been changed to the laminar flow; and a joining unit for joining a bottom portion of the body of the spray drying apparatus to a gas supply line that is a main flue gas duct for the flue gas so as to discharge spray-dried solids to the main flue gas duct.

主权项

1. A spray drying apparatus, comprising:
a body; a gas inlet provided to the body and introducing a flue gas; a spray nozzle for spraying waste water into the flue gas in order to evaporate and dry the waste water; a flue gas introduction line connected to the gas inlet and supplying the flue gas; and a main flue gas duct connected to a bottom of the body of the spray drying apparatus, wherein an upstream end of the flue gas introduction line is connected to and branches from an upstream portion of the main flue gas duct.