Uranit Gmbh

Verein Deutscher Zementwerke E.v.

Peter Kalkert

Peter Kullertz

Martin Schneider

The invention relates to a cooling system () for rotary furnaces (), and also to a method for operating such a cooling system (). The cooling system () comprises for this purpose an arrangement of one or more cooling modules (), which are arranged in the portion () to be cooled of the furnace shell (), at least along the axis of rotation (R) of the furnace shell (), wherein each cooling module () comprises an activatable switching valve () and a fan nozzle () for issuing a pulsed fan-shaped cooling liquid jet () and, when there are a number of cooling modules, the neighbouring cooling modules () are arranged in relation to one another at a distance (A) parallel to the axis of rotation (R) of the furnace shell (). Each cooling module () comprises at least one first heat sensor (), connected to a cooling system control (), for measuring a first local temperature (T) of the furnace shell () ahead of the area of impingement () as seen in the direction of rotation (DR) of the furnace shell ().

Cooling system for rotary furnaces

An apparatus for the coupling of laser radiation into a microwave waveguide, in which the laser radiation and the microwave enter the waveguide perpendicular to one another and, after the microwave is deflected, exit the waveguide colinearly. To enlarge the cross section of the laser beam to be coupled and to be able to adjust it to the microwave waveguide, the invention provides that the entry aperture for the laser beam incorporates a corrugated bandstop filter, and that the entry aperture for the microwave is configured in the manner of an orthomode coupler.

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Julich, Germany

Peter Kalkert