The invention discloses a multi-channel multi-stage circulating CO eliminating
system and eliminating method. The
system is characterized in that a
smoke dust filtering and dehumidifying cabin, a multi-stage CO eliminating cabin and a drainage device are connected in sequence; a flow equalizing plate, a
particle filter and an air dehumidification module are sequentially arranged in the
smoke dust filtering and dehumidifying cabin from left to right, a gas sensor and a first CO sensor are installed on the air inlet side, a second CO sensor is installed on the air outlet side, and a first
air volume control valve and a first exhaust fan are assembled on the upper portion of the air outlet side of the
smoke dust filtering and dehumidifying cabin. The multi-stage CO eliminating cabin is divided into an
airflow circulating cavity and a CO eliminating cavity, a second exhaust fan, a heating
assembly and a temperature sensor are arranged in the
airflow circulating cavity, and a multi-stage CO eliminating
assembly and a third CO sensor are arranged in the CO eliminating cavity; and a fan is arranged in the drainage device. The method comprises the following steps: providing drainage negative pressure by using the fan, sequentially carrying out filtering dry treatment on the
airflow, and effectively eliminating CO in the airflow in a triple
elimination mode. The
system and the method can effectively eliminate CO in the gas flow.