Novel flue gas distributor for rotary spray wastewater drying

Abstract

The invention relates to a novel flue gas distributor for rotary spray wastewater drying. The novel flue gas distributor comprises a volute isobaric channel, a conical ring outer side channel, a fluegas distributor body, a conical ring inner side channel and a rotary atomizer. According to the distributor, guide plate structures and channel structures are innovated, so that the distributor conforming to the rotary spray wastewater drying is designed; each flow guide plate at the outlet of the isobaric channel is composed of a straight plate and folded plate assembly, radial flow guide is fully conducted while the rotational flow of flue gas is guaranteed, ad the stability of a flue gas flow field entering the outer side channel is ensured; the inner side channel and the outer side channelare both of an incomplete double-channel structure and are provided with flow guide plates with rotatable angles, so that the rotational flow of the flue gas can be enhanced, two-phase uniform mixingof atomized wastewater and high-temperature flue gas is guaranteed, and heat and mass transfer capacity of the atomized wastewater and high-temperature flue gas is improved; a double-channel structure consisting of the conical ring outer side channel and the conical ring inner side channel is adopted, and the combination effect of a double-layer rotating air curtain is fully exerted.

Description

technical field [0001] The invention belongs to the technical field of waste water zero discharge, and in particular relates to a novel flue gas distributor for rotating spray waste water drying. Background technique [0002] Gypsum wet flue gas desulfurization technology is currently the most widely used flue gas desulfurization technology, but during the operation of gypsum wet flue gas desulfurization technology, pollutants such as hydrogen chloride, particulate matter and heavy metals in the flue gas will continue to be enriched in the desulfurization slurry. concentration, resulting in problems such as equipment corrosion and desulfurization efficiency decline; therefore, the desulfurization system needs to discharge a certain amount of desulfurization wastewater every once in a while, and the desulfurization wastewater contains high heavy metals and chloride ions, making it difficult to treat. [0003] At present, the zero-discharge technology of desulfurization wastew...

AI Technical Summary

Problems solved by technology

However, in the current use of the flue gas distributor, there are problems such as uneven distribution of flue gas entering the tower, insufficient swirl, insufficient mixing with atomized wastewater, and incomplete evaporation of wastewater.

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