Coal bunker in the coal-fired power plant
Hard coal (anthracite) or brown coal is the main energy source in coal-fired power plants. In some plants, more than 1000 tons are burned every day in the boiler. The coal is delivered by ship or by train. At the loading stations, the coal is frequently stored in coal bunkers up to 30 m (98 ft) high. The coal is then transported from these bunkers via above- or belowground conveyor belts to the power plant coal yard. Further conveyor belts feed the coal, often via intermediate bunkers, to beater mills in which the coal is ground into fine dust.
Level measurement in the coal bunker with VEGAPULS 68
In places where it is really dusty and no contacting measurement technique holds up for very long, the radar sensor VEGAPULS 68 is the right choice. Specially developed for bulk solids, it offers all the advantages of contactless filling level measurement. VEGAPULS 68 measures the filling level reliably even under conditions of extreme dust generation. Depending on the size and number of loading points, several VEGAPULS 68 sensors may be in use.
Overfill protection with VEGACAP 65
Ruggedness is a critical factor in the coal bunker. That’s why the capacitive measuring technique lends itself well to overfill protection. VEGACAP 65 stands out due to its stable, insensitive mechanical construction and easy setup. Neither condensate nor buildup can compromise its reliability in protecting against overfilling.
