Device for dust separation from gases

Claim 1

In a device for the separation of dust from gases, comprising a housing containing a raw gas chamber, several cyclone separators in the raw gas chamber, a raw gas inlet through which untreated gas enters said separators via tangential raw gas inlets, said housing also containing a pure gas chamber separated from the raw gas chamber by a wall, with pure gas flowing from the cyclone separators into the pure gas chamber through pipes penetrating the wall; the improvement wherein the cyclone separators each have a dip pipe extending upwardly and a dip pipe extending downwardly from a separating chamber in the cyclone separators; said raw gas chamber being separated at the bottom by a partition from a dust-collecting chamber; said upwardly and downwardly extending dip pipes communicating with an outlet for the discharge of pure gas from the housing; said upwardly-extending dip pipes terminating directly in said pure gas chamber; said downwardly-extending dip pipes communicating with pure gas ducts which penetrate the dust-collecting chamber and are fluidly connected to said outlet; and wherein several of said downwardly-extending dip pipes extend through apertures located in a funnel-shaped part of said dust-collecting chamber into ducts for the efflux of pure gas outside of the funnel and inside a lower section of a housing wall.