| abstract |
The present invention relates to thermal power plant flue gas SCR denitration technology fields, and in particular to a kind of reducing agent mixing arrangement applied to SCR denitrating flue gas；Including gas approach and SCR reactor；Gas approach is S type structure, and its left part is plugged with filter screen, the bottom of gas approach left part offers rectangle discharge port, the bottom magnetic of discharge port is connected with Material collecting box for harvesting, the middle part of gas approach is equipped with ammonia-gas spraying device, the lower section of gas approach and the bending part of upper part are equipped with snakelike vortex tube, are connected at the top of the right part of gas approach and SCR reactor, the inside of SCR reactor is longitudinally equipped with three layers of catalyst layer；The present invention is not only avoided that gas approach blocks, moreover it is possible to by realizing being sufficiently mixed for flue gas and reducing agent using being used in conjunction with each other between two snakelike vortex tubes and ammonia-gas spraying device, ensure that the uniformity in downstream flow field；Furthermore the effect of preferable reducing agent and flue gas mixing may be implemented in the configuration of the present invention is simple, easy for installation. |