Flue gas purification device and process for hot mix plant recycling equipment

Abstract

The invention discloses a flue gas purification device and process for hot mix plant recycling equipment. The flue gas purification device comprises a burner, a recycling drum, a first dust leading pipeline, a spraying cyclone tower, a second dust leading pipeline, a first reaction chamber, a second reaction chamber, an induced draft fan and a chimney which are sequentially connected in series. Amicrowave light-oxygen catalytic purification device is arranged in the first reaction chamber and comprises a magnetron, an electrodeless lamp and a photocatalyst; the magnetron emits microwaves to light the electrodeless lamp; and a microwave catalytic pyrolysis device is arranged in the second reaction chamber and comprises a magnetron and a catalyst. During operation, the microwave light-oxygen catalytic purification device emits ultraviolet light to produce hydroxide radicals and ozone to carry out a redox reaction with dust-containing flue gas, and the magnetron of the microwave catalytic pyrolysis device produces microwaves to further perform catalytic pyrolysis on the dust-containing flue gas until the dust-containing flue gas is purified into clean air. According to the flue gas purification device disclosed by the invention, the dust-containing flue gas is treated by the two reaction chambers, with excellent effect but without causing secondary pollution.

Description

technical field [0001] The invention relates to the field of purification of dust-containing flue gas of plant-mixed heat regeneration equipment, in particular to a flue gas purification device of plant-mixed heat regeneration equipment. Background technique [0002] Plant mixing hot regeneration equipment is to use regeneration technology to mill and cut the old asphalt mixture of invalid asphalt pavement, after crushing, screening, lifting, heating, storage and weighing, it is added to various types of asphalt mixing in different proportions In the mixing pot of the station, re-stir with the newly added aggregate, powder, and asphalt to obtain a mixture that meets the road performance indicators. During this process, the old asphalt mixture needs to be heated, because the asphalt mixture contains asphalt, during the heating process, dusty fumes containing various harmful gases will inevitably be generated. Currently, there are three common treatment methods , respectively...

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Problems solved by technology

[0004] In order to solve the deficiencies in the prior art, the present invention provides a flue gas purification device and process for plant-mixe

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