APPARATUS FOR SPRAYING CHEMICAL FOR REMOVING TOXIC GAS FROM EXHAUST GAS

摘要

This invention relate to a chemical spraying apparatus wherein an inert gas or carbonic acid gasremoved air is supplied under pressure to a gap between a rotary disk and a main unit or a chemical feed unit therein, the pressure of the inert gas or carbonic acid gas-removed air is used to keep an internal pressure of the rotary disk during high-speed rotation to be equal to or higher than an internal pressure of a reaction tower incorporating the main unit, so that almost no calcium carbonate is produced by a chemical reaction between carbonic acid gas and the sprayed chemical, and a nozzle clogging interval can be greatly prolonged.