Polysius Ag

Wolfgang Triebel

Wolf Goldmann

Gert Tegtmeier

The invention relates to a shaft-type countercurrent heat exchanger in which the uppermost part of the shaft is formed by a turbulence chamber which communicates with the underlying countercurrent chamber of the shaft through a central material outlet and several gas pipes opening tangentially into the turbulence chamber, thereby improving the thermal efficiency of the heat exchanger.

Shaft type countercurrent heat exchanger

A suspension gas preheater (hereinafter referred to in short as a suspension preheater) for fine material comprising several heat exchanger stages arranged one above the other through which material passes successively in a downward direction and through which the gas flows upwards in countercurrent thereto, is fitted with an additional heat exchanger stage which is supported alongside the vertical stack of original heat exchanger stages and which is connected to the uppermost original heat exchanger stage by a material feed system.

Suspension gas preheater

A vertical reaction vessel has a plurality of funnel-like constrictions dividing the vessel into individual chambers, at least one inlet for introducing fine material into the top of the uppermost of such chambers, and an opening at the bottom of the lowermost of such chambers for withdrawing heated fine material, and for introducing hot gas to be exhausted from the uppermost chamber. Guide elements for the fine material extend downward along the inner surface of at least one of the funnel-like constrictions.

Growing community of inventors

Oelde, Germany

Wolfgang Triebel