Patent ID: 8353256

Claim:
An installation for guiding a gas for an apparatus for treating granular products by drying, film-coating or coating, comprising: a central distribution channel for receiving a supply of gas and including axially spaced outlets for the gas that are spaced apart along the central distribution channel, respective connection channels, each connected at one end to a respective one of the axially spaced outlets such that the connection channels operate to receive the gas from the central distribution channel, and a functional channel comprising: (i) at least two inlet regions axially spaced from one another, each of the inlet regions being connected to a respective one of the connection channels such that the functional channel operates to receive the gas from the connection channels; and (ii) a plurality of outlet openings arranged between the two inlet regions, viewed in an axial direction of the functional channel, the plurality of outlet openings operating to permit the gas to escape from the functional channel, wherein the functional channel in one or more inlet regions is mounted in a slide which is guided on the elements that form the connection channels in a guide, while in every position of the slide relative to the guide the functional channel is connected in flow-carrying manner to the distribution channel.