| 摘要 |
A device for admixing an agent in the form of gas or liquid to a material flow, comprising a chamber (1) with an inlet portion (4) and an outlet porti on (5) for connection to an inlet (2) and, respectively, an outlet (3), each wi th substantially circular cross-section for the through-flow of material. Means (6) for the sup ply of agent are connected to the chamber (1). The cross- section of the inlet portion (4) of the chamber transforms from oblong to circular, preferably with substantially maintained area. The means (6) for t he supply of agent are distributed around the chamber (1) between the inlet portion (4) and outlet portion (5).
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