Cyclone redistribution denitration reactor for flue gas

Abstract

The invention relates to the field of environmental protection devices, and concretely discloses a cyclone redistribution denitration reactor for flue gas. The cyclone redistribution denitration reactor comprises a flue gas inlet tube, a cyclone assembly for guiding flue gas, an ammonia spraying and mixing device, a connecting flue gas tube, a catalytic reaction device and a flue gas outlet tube which are sequentially interconnected, the cyclone assembly comprises a first shell, the flow guiding plates and a mounting plate, the flow guiding plates have a spiral fan blade shape, the flow guiding plates are connected to the inner wall of the first shell, and are arranged along the circumferential direction of the first shell, the quantity of the flow guiding plates is more than one, the rotating directions of all the flow guiding plates are same to each other, the mounting plate is positioned among all the flow guiding plates, and the mounting plate is fixedly connected to one ends, facing the center of the first shell, of all the flow guiding plates. Flue gas enters the cyclone assembly through the flue gas inlet tube, and moves along the flow guiding plates to form a uniform-rotating flue gas flow, so the flue gas is in a uniformly distributed state when moving to the ammonia spraying and mixing device, thereby the flue gas is well contacted and reacted with a reaction solutionsprayed by the ammonia spraying and mixing device, dead angles are reduced, and the denitration efficiency is improved.

Description

technical field [0001] The invention relates to the field of environmental protection equipment, in particular to a flue gas swirling re-distributed denitrification reactor. Background technique [0002] The importance of preventing environmental pollution has been sharply raised as a worldwide problem. With the development of modern industrial production and the improvement of living standards, air pollution has become a matter of great concern to people. [0003] The existing flue gas denitrification technologies mainly include dry method (selective catalytic reduction flue gas denitrification, selective non-catalytic reduction method denitrification) and wet method. Compared with wet flue gas denitrification technology, the main advantages of dry flue gas denitrification technology are: low basic investment, simple equipment and process, high efficiency of NOX removal, no waste water and waste treatment, not easy to cause secondary pollution secondary pollution. Select...

AI Technical Summary

Problems solved by technology

[0004] At present, the flue gas distribution in the denitrification reactor basically adopts the distribution grid in the reactor, and the flue gas entering the device generally has an inclination angle, so there is an angle between the flue gas and the distribution grid, resulting in the distribution of the flue gas after passing through the distribution grid. Uneven, that is, the flue gas moving to the reactor is unevenly distributed, and there is a dead angle between the reactor and the reactor, which is prone to uneven mixing of flue gas and ammonia gas, which affects the denitrification efficiency

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