Falling Film Evaporator for Fruit Juice Concentration
An industrial falling film evaporator concentrates fruit and vegetable juice by removing water under controlled heating and vacuum. It can also be configured for other aqueous food and beverage products such as milk, glucose solutions and maltose. Vacuum operation lowers the boiling temperature, which can help limit heat exposure; the final product quality depends on the juice, residence time and process settings.
Falling Film Evaporator Structure and Components
The system may combine one or more evaporator effects with separators, preheaters, a condenser, vacuum pump, feed and circulation pumps, discharge pump, condensate pump, piping and fittings. The system includes CIP spray balls, a vacuum gauge, thermometer and pressure gauge in the described configuration. The number of effects and auxiliary equipment are selected for the required capacity and energy arrangement.
How Falling Film Evaporation Works
Feed is introduced at the top and distributed as a thin film over the inside of the heating tubes. It flows downward by gravity while heating medium outside the tubes supplies heat. Water vapor and concentrated liquid leave the tubes for separation. In a configuration with mechanical vapor recompression, a compressor can return secondary vapor as a heating medium; this step is not present in every falling film system.
Fruit Juice Falling Film Evaporator Features
- Available evaporation capacities are listed from 500 kg/h to 80 t/h; confirm the achievable duty for the specified feed and effect arrangement.
- Continuous operation and automatic controls can be configured for production-line use.
- Multiple-effect arrangements and appropriate heat recovery can improve energy use, depending on the steam and utility balance.
- A concentration ratio up to 1:5 is listed as a design example; achievable concentration depends on viscosity, fouling tendency and target solids.
- A CIP cleaning circuit is included in the described configuration; cleaning performance depends on the final piping and cleaning procedure.
- For high-viscosity or scaling materials, assess a combined forced-circulation evaporator or crystallizer rather than assuming a falling film unit alone is suitable.
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Available Falling Film Evaporator Process Configurations
Single-effect through six-effect systems are described as available options. Select the number of effects, vacuum arrangement and any heat-recovery system according to the juice characteristics, required concentration, throughput and available utilities. A process review is needed before finalizing equipment.
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- Fruit Juice Production Line
- Citrus Juice Processing Line
- Mango juice production line
- Apple Juice Processing Line
- Pineapple Juice Processing Line
- Pomegranate juice processing line
- Lychee juice processing plant
- Grape Juice Processing Line
- Full Automatic Milk Processing Plant
- Plant Protein Beverage Production Line
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- Fruit Belt Press Filter
- Spiral Juice Extractor
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- Citrus Fruits Peel Essential Oil Extractor
- Double Screw Extractor for Grape
- Fruit Pulping Machine
- Mango Peeling and Destoning Machine
- Grape Destemmer Crusher
- Automatic Coconut Cutting Machine
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