Method of reducing slags in size and device for carrying out...

Details Method of reducing slags in size and device for carrying out... Method of reducing slags in size and device for carrying out...

C - Chemistry, Metallurgy

21

B

C21B 3/06 (2006.01) C21B 3/04 (2006.01)

Patent

CA 2365938

The invention relates to a method and to a device for reducing slags in size by melting the slags and then spraying and granulating them in a cooling chamber. According to the inventive method, the solid slags are molten in a pressure-proof closable melt cyclone and the molten slags are conveyed directly from the melt cyclone to a cooling chamber, said cooling chamber having a lower pressure than the melt cyclone. The inventive device comprises a melt cyclone with an outlet that enlarges from the narrowest point towards the orifice to which a cooling chamber is connected, especially flanged, so as to withstand the pressure.

L'invention concerne un procédé et un dispositif permettant de broyer des scories. Selon le procédé, les scories sont mises en fusion, puis pulvérisées et granulées dans une chambre réfrigérée. Ce procédé se caractérise principalement en ce que les scories solides sont mises en fusion dans un cyclone pouvant être fermé de manière étanche à la pression. Les scories fondues sont éjectées directement hors du cyclone dans une chambre réfrigérée maintenue à une pression inférieure à celle du cyclone. Le dispositif comprend un cyclone présentant une ouverture de décharge allant en s'élargissant entre un point étroit et l'embouchure. Une chambre réfrigérée se raccorde à cette ouverture de manière étanche à la pression, notamment comme un flasque.

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