DOWNFLOW CYCLONE

摘要

There is described a downflow cyclone consisting of a coaxially arranged head portion (1), a cylindrical separating chamber (2) and a conical settling chamber (3) as well as a raw gas inlet (4) and a gas outlet tube (6). The raw gas inlet (4) is disposed in the lower half of the cylindrical separating chamber (2). The ratio between height H2 and diameter D2 of the cylindrical separating chamber (2) lies in the range between 0.2:1 and 2.5:1. The gas outlet tube (6) protruding into the cyclone emerges laterally from the conical settling chamber (3) or concentrically through a line (9) for supplying solids, and the point where the gas flows into the gas outlet tube (6) lies between two imaginary planes, the lower one of which lies below the lowest point of the cross-section of the raw gas inlet (8) and has a distance B from the lowest point of the cross-section of the raw gas inlet (8) which is equal to twice the diameter D1 of the gas outlet tube, and the upper one of which has a distance A from the head portion (1) which is equal to once the diameter D1 of the gas outlet tube.