DEVICE FOR FEEDING AND INCINERATION OF AIR-GAS MIXTURE IN CAKING LAYER OF METAL Russian patent published in 2008 - IPC F27B21/08 

FIELD: metallurgy; the processes with applying of the caking burning or the metal agglomerating in the filtering layer.

SUBSTANCE: device includes cowl with holes for air suction in the upper wall and with the guides, situated above the charge layer with gap, the gate, chosen equal to the upper cowl wall and installed on it with possibility to move, with the holes coincide with cowl holes, gas pipe line, gas distributor with the holes directed down. The flange cowl walls are produced as the isosceles trapezium, long bases, which are situated beneath, and the side cowl walls are inclined and through their length are made the cuts in the upper part, above which it is installed contre-explosive valves. The contre-explosive valves are made as plates, which are fixed outside by upper edge above the cuts in the side cowl wall, with the possibility to rotate and are supplied clamping spring. Along the perimeter of the cut between side cowl wall and the plate it is installed elastic thermostable lining. To the cowl it is fixed outside the safety casing.

EFFECT: reliable input and incineration of air-gas mix in the caking layer of the material; the exceeding of the productivity of the calcining plant; amelioration of the final production; safety condition of work.

3 cl, 2 dwg