More than 20 million tons of asphalt are produced in Germany each year. BMD-GARANT filter systems have been specially developed for the asphalt sector and meet the high demands of the industry.
Requirements for filter systems in asphalt mixing plants
In asphalt mixing plants, aggregates are first dried in a drum. They are then processed by mixers with bitumen to produce asphalt. The fuels used for drying may contain, among other things, sulfur, which forms acidic condensates with the moisture in the exhaust gas. Therefore, the filtration system must be designed for high temperatures, large amounts of dust and varying moisture contents.
Typically, a coarse separator is used upstream of the filtration system to divide the dust into a coarse and fine fraction. The recovered dust is returned to the process at different points. Dust is discharged from the filter by means of tubular screws.
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