Asphalt mixing station flue gas purification, asphalt mixing station flue gas purification device, and asphalt mixing station flue gas purification system are environmentally friendly equipment specially designed by our company's technical personnel based on the principle of asphalt waste gas generation in asphalt mixing stations and modified asphalt production, combined with the actual situation of road construction and maintenance units.
Smoke characteristics:
Asphalt needs to be heated during use, resulting in a large amount of asphalt waste gas. The characteristic of asphalt waste gas is that it is easy to adhere and can easily explode above a certain temperature. During the collection, transportation, and smoke suppression process of asphalt waste gas, it is highly prone to adhere to the surface of pipelines and equipment, forming liquid to solid asphalt. The solidified asphalt is difficult to remove, often causing pipeline blockage and equipment damage, making the system unable to operate normally.
The composition of asphalt exhaust gas is extremely complex and varies depending on the source of asphalt. Asphalt waste gas contains both solid and liquid particles formed by the condensation of asphalt volatile components, as well as organic matter in vapor state. Some of the organic matter is high molecular weight polymers, which can cause serious pollution to the environment. Smoke contains various organic compounds, including carbon ring hydrocarbons, ring hydrocarbon derivatives, and other compounds, which have harmful effects on human health. Asphalt smoke contains multiple polycyclic aromatic hydrocarbons such as benzo [a] pyrene, benzo [a] anthracene, and carbazole, most of which are carcinogenic and strongly carcinogenic substances. The particle size is mostly between 0.1 and 1.0 μ m (the purification treatment is to capture as many of these small particles as possible), with the smallest being only 0.01 μ m, about 10.0 μ m, especially for various carcinogens represented by 3,4-benzo [a] pyrene. The main way it endangers human health is by attaching to dust particles below 8 μ m and being inhaled into the body through the respiratory tract.
Therefore, it is necessary to purify and treat asphalt waste gas to meet atmospheric environmental standards.