| 摘要 |
PROBLEM TO BE SOLVED: To restrain a harmful component concn. incorporated in a waste gas discharged from a gas outlet side louver from becoming high. SOLUTION: A gas inlet side louver 32, a gas outlet side louver 33, a moving- bed formed between the gas inlet side louver 32 and the gas outlet side louver 33, a supply port 37 formed at an upper end and supplying a catalyst and cut-out devices 38-40 formed at a lower end and discharging the catalyst by a fixed amount are provided. The thickness of the moving-bed is made larger toward the lower part. Therefore, the removing of the harmful component incorporated in the waste gas is made easy since a waste gas speed is lowered as downward. |
