Swenson Technology, Inc. products

Falling film evaporators are used to concentrate liquids that do not have solids present. The Swenson falling film evaporator is an ideal solution for processing heat-sensitive liquors.

Swenson thermal vapor recompression (TVR) evaporators use a thermocompressor to reduce the steam required per pound of evaporation—ultimately reducing energy consumption and saving costs.

Increasing energy costs have justified the increased use of mechanical recompression evaporators. The principle is simple. Vapor from an evaporator is compressed (with a positive-displacement, centrifugal or axial-flow compressor) to a higher pressure so that it can be condensed in the evaporator heat exchanger. Various combinations are possible, including single-effect recompression, multiple-effect recompression, multiple-stage recompression, and single-effect recompression combined with a multiple-effect evaporator.

Swenson draft tube crystallizers (DTB) provide superior control over crystal size and characteristics. For superior control over particle size when excessive fine crystals are present, the Swenson draft tube baffle (DTB) crystallizer has been proven highly effective. This type of crystallizer is used in the production of a variety of large-size crystalline materials such as ammonium sulfate, potassium chloride and diammonium phosphate.

Surface cooled crystallizers are a type of forced circulation crystallizer. Surface cooled crystallizers are generally used where the solution boiling point elevation is extremely high—as in the case of caustic solutions—or when the temperature level is so low that evaporation by vacuum is impractical.

Batch vacuum crystallizers are used for applications with very low operating temperatures that can only be achieved by very high vacuum, applications involving relatively small amounts of materials, and applications where the material being processed must be handled on less than a continuous basis. Batch vacuum crystallizers are a convenient and economical choice for these special cases.

The Swenson top feed filter excels at dewatering and drying crystalline materials.