Removal tower and method for collaboratively desulfurizing and removing PM2.5 (Particulate Matter 2.5) in smoke

Abstract

The invention discloses a removal tower and a removal method for collaboratively desulfurizing and removing PM2.5 (Particulate Matter 2.5) in smoke. The removal tower is internally provided with a smoke outlet channel, a defogging device, a phase change condensing area, a slurry spraying layer, a first smoke humidifying device and a slurry tank which are arranged from top to bottom in sequence; the slurry tank is communicated to the slurry spraying layer through a slurry pipeline and a circulating pump; a smoke inlet channel is arranged between the slurry spraying layer and a first smoke humidifying device; an oxide-isolation device, an oxide air distributing device and a stirrer are arranged in the slurry tank from top to bottom in sequence; and the phase change condensing area comprises a second smoke humidifying device and a plurality of bent baffle plates. The removal tower is provided with a structure for desulfurizing and also has a structure for removing the PM2.5, and the two structures are distributed in the same removal tower; and the steam phase technology is carried out, so that the purposes of desulfurizing and removing the PM2.5 can be realized at the same time, and the purifying efficiency of the smoke can be improved; and furthermore, the whole removal tower is simple in structure, the floor space is saved, and the operation cost is reduced.

Description

Technical field [0001] The invention relates to the technical field of flue gas purification, in particular to a collaborative desulfurization and removal of PM in flue gas 2.5 The removal tower and method. Background technique [0002] PM 2.5 Refers to fine particles with an aerodynamic diameter of less than 2.5μm, which are an important factor leading to environmental problems such as reduced atmospheric visibility, haze weather, acid rain and global climate change. Current PM 2.5 Pollution has become a prominent atmospheric environmental problem in my country. PM 2.5 The emissions mainly come from the burning of fossil fuels such as coal, oil, etc. and biomass. Because of its large specific surface area, it is easy to accumulate heavy metal elements. It is one of the most important pollutants affecting human health. The existing conventional dust removal technology PM 10 Fine particles below and below are difficult to capture effectively. In terms of the current technology d...

AI Technical Summary

Problems solved by technology

However, there is no synergistic removal of PM in flue gas at the same time as desulfurization in the prior art. 2.5 The removal tower device and method of

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