Messer Griesheim Gmbh

Wolfgang Hoffmanns

Jurgen Buchmuller

Stefan Kosock

The apparatus for pelleting or granulating a liquid or pasty substance with a liquid cooling medium contains a pump (,) for the liquid cooling medium, a channel (,), open at the top and arranged horizontally or at an angle, for the liquid cooling medium, a feed device (,) for the substance to be pelleted, a return device (,) for the liquid cooling medium, and a heat-insulated conveying device (,). The apparatus is used in a method in which, by means of a gaseous cooling medium such as cold exhaust air, the pellets are not frozen through until in the region of the conveying device.

Method and apparatus for pelleting or granulating a liquid or pastry substance

A device for freezing foodstuffs on a tray cart includes a liquid cryogenic refrigerant spraying system for each side of the cart. The spraying systems are activated by reversible magnet valves. Rotary fans circulate the vaporized refrigerant. The fans are reversibly rotated for drawing in or blowing out the vaporized refrigerant across the cart shelves.

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Willich, Germany

Wolfgang Hoffmanns