| 摘要 |
PURPOSE: To reduce the installation area and evenly spray a reducing agent to an exhaust gas in order to heighten denitration efficiency. CONSTITUTION: The inside of a reaction tank 1 is partitioned into a first chamber 11a and a second chamber 11b by a diaphragm 10, a denitration agent 2 consisting of a large number of catalysts composed into a honeycomb-like structure are layered and arranged in the insides of respective chambers, a gas flow path 12 which communicates both chambers to lead and turn back an exhaust is installed in the lower parts of both chambers 11a, 11b, a flow pipe 7 in which a spraying nozzle 8 of a reducing agent is fixed at the tip part is inserted near a gas introducing part in the first chamber 11a side to which an exhaust gas is to be led, and a discharging pipe 15 is fixed in an end part of the second chamber 11b to give a vertical type denitration apparatus. A straightening plate 13 to straighten the gas flowing disorderly is installed almost the center part of the gas flow path 12 and a binary type nozzle in which a flow pipe of compressed air is joined to a flow pipe of a reducing agent is used. |
