Alfa Laval Corporation Ab

Peter Sjoberg

Anders Ma Hillstrom

Vacuum vessel for continuous or semicontinuous treatment of fatty oils

Mixer for mixing of liquids or suspensions and method for mixing

Deodorisation plant for fatty oils

A filter device comprising a tubular housing with an inlet for the fluid to be filtered in one end of the housing, an outlet for filtrate in the opposite end of the housing and a filter tube mounted inside the housing and extending essentially in the axial direction of the tubular housing. At least part of the filter tube wall forms the filter surface. One end of the filter is openly connected to said inlet, whereas the other end is closed so that an annular feed conduit is formed between the housing and the filter tube. A first valve means is arranged inside the filter tube to shut off the filter tube, during cleaning periods, thereby dividing the filter tube and the filter surface into an upstream part and a downstream part, and forcing the entire filtrate stream to pass through said upstream part of the filter surface into the filtrate conduit. The downstream part of the filter tube is provided with a discharge conduit comprising a second valve means to cause, by opening said second valve means at said cleaning periods, part of the filtrate stream from the filtrate conduit to stream back through the downstream part of the filter surface, thereby removing rejected material settled thereon out through said discharge conduit.

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Solna, Sweden

Peter Sjoberg