VERFAHREN UND ANLAGE ZUR ABGASREINIGUNG BEI VAKUUM-STAHLBEHANDLUNGSPROZESSEN

Durch eine dreifach wirkende Zyklonkombination bestehend aus Zyklon (4) mit integriertem Feinfilter (6) und Gaskühler (5) wird bei der Vakuumerzeugung durchDampfstrahl-Ejektorpumpen oder mechanische Pumpen bei Stahlentgasungsprozessen eine effektive Reinigung und Kühlung des angesaugten Abgasstroms bewirkt. A method for waste gas purification in dust separation plants making use of a device (16) for generating a negative pressure, in particular by means of steam jet ejector pumps or mechanical vacuum pumps, wherein the waste gas coming from a vacuum chamber (15) is conducted into a cyclone separator (12), and that the method steps of coarse separation of particles from the waste gas and fine dust separation of particles from the waste gas and gas cooling in the cyclone separator (12) are carried out in succession in such a way that the waste gas, after coarse purification has taken place, is conducted directly via a fine dust filter (13) installed in the cyclone separator (12) and subsequently through a gas cooler (14), which follows the fine dust filter (13), into a suction line (2) connected to the device (16) for generating a negative pressure and to the device (16).