Apparatus for purifying asphalt fume

Abstract

The invention discloses apparatus for purifying asphalt fume. The apparatus comprises a spraying tower; the side wall of the bottom of the spraying tower is provided with a fume inlet; the fume inletis connected with a Venturi tube; a spraying device is arranged in the spraying tower; the spraying device comprises a plurality of spraying pipes arranged in the spraying tower; the spraying pipes are connected with a water pump through pipelines; the water pump is arranged in an alkaline solution circulating tank; the alkaline solution circulating tank is arranged at the lower part of the spraying tower; a turbulent flow plate and an activated carbon adsorbing layer are sequentially arranged above the spraying device in the spraying tower; the top of the spraying tower is provided with a fume pipeline; the fume pipeline is connected with a conveying pipeline; the conveying pipeline is connected with a photocatalysis device; the photocatalysis device comprises a box body, a filter, ultraviolet lamps and photocatalysis plates; the filter, the ultraviolet lamps and the photocatalysis plates are arranged inside the box body; the ultraviolet lamps are arranged on frames; the frames and the photocatalysis plate are arranged at intervals; the photocatalysis device is provided with an air outlet end; and the air outlet end is connected with a high-exhaust pipe.

Description

technical field [0001] The invention relates to the field of flue gas treatment equipment, in particular to a device for purifying asphalt flue gas. Background technique [0002] At present, asphalt, a petroleum product, is used in road construction. Asphalt is a brown-black viscous substance. Its main components are asphaltene and resin, and it also contains high-boiling point mineral oil and a small amount of oxygen, sulfur, and nitrogen heterocyclic compounds. Due to its good cohesiveness, plasticity, water resistance and moisture resistance, asphalt has a long history of application in the field of road construction and is used in large quantities. At present, the vast majority of high-grade highways in the world use asphalt pavement, and the amount of asphalt pavement gradually increases with the continuous improvement of asphalt performance. Asphalt is widely used to benefit human beings, but it also brings negative effects of environmental pollution. When the asphal...

AI Technical Summary

Problems solved by technology

When the asphalt is heated to a certain temperature, yellow asphalt fume will be produced. The asphalt fume mainly contains low-carbon chain hydrocarbons, as well as a small amount of nitrogen, sulfur heterocyclic compounds and polycyclic aromatic hydrocarbons. These substances cause environmental pollution. Seriously affect the growth and development of people, animals, and plants. If people are exposed to asphalt oil fumes for a long time, it can cause respiratory and skin diseases, and induce cancer. In addition, it will form smoke and affect road traffic safety in severe cases.

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