FIELD: metallurgy.
SUBSTANCE: according to invention dry additive is supplied into discharge gas from agglomeration plant in channel (1, 2a, 2b) of discharge gas by means of a volatile flow. The additive consists of at least absorber, recycle stock and, if necessary, additional reagent, such as lime or calcium hydroxide. Further, additive is separated from discharge gas with woven filter (3) and at least partially recycles. Additive is introduced opposite to direction of flow of discharge gas, particularly before and/or after gas conditioner (1); also recycle stock on one side, pure absorber and, if necessary, reagent on another side are introduced at different points (4, 5, 17, 20). Notably, absorber and/or reagent are introduced before recycle stock.
EFFECT: increased rate of reaction between discharge gas and additive.
16 cl, 1 dwg
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