The design concept of a plate evaporator originates from that of a plate heat exchanger. It is a high-efficiency evaporation device that uses plates as heat transfer elements. Plate evaporators are specifically optimized for the "evaporation" process of plate heat exchangers, with the core objective of efficiently concentrating materials through thin-film evaporation. The material flows through the channels formed by the plates and is heated by steam on the other side. Upon heating, the material rapidly boils and vaporizes. The steam generated by boiling carries the liquid upwards, forming an extremely thin liquid film on the heat exchange wall. This liquid film flows across the heated surface at a very high speed, achieving efficient evaporation. Based on the flow direction of the material, it is mainly divided into rising film, falling film, and rising-falling film types.
Plate evaporators are widely used in the food and beverage, pharmaceutical, chemical, and environmental protection industries.
Plate evaporators are particularly suitable for processing heat-sensitive materials, maximizing the preservation of the product's flavor, color, and nutrients.
√ Concentration Processing
Used for concentrating fruit juices, fruit purees, and vegetable juices, as well as in the production of milk, whey protein, condensed milk, and milk powder.
√ Sugars and sweeteners
Used for the concentration and refining of sugar juices and corn syrups.
√ Dairy products
Suitable for the pre-concentration of dairy products such as whey protein.
Plate evaporators meet stringent hygiene requirements, are easy to clean, and their gentle heating method is crucial for preserving the active ingredients of pharmaceuticals.
√ Pharmaceuticals
Used for the concentration of antibiotic and vitamin fermentation broths.
√ Bioengineering
Suitable for the gentle evaporation and concentration of heat-sensitive materials to maximize product activity.
In the chemical industry, plate evaporators are used for the evaporation, concentration, cooling, and condensation of various materials.
√ Inorganic salts and chemicals
Suitable for the evaporation and crystallization of various inorganic salts, as well as for cooling processes in the synthesis of soda ash, synthetic ammonia, and resins.
√ Organic acids and alcohols
Used for the concentration and reboiling of materials such as lactic acid, gluconic acid, alcohol, and ethylene glycol.
√ Plant Extraction
Used for concentrating extracts of effective components from natural plants (such as tea polyphenols and anthocyanins).
This is a rapidly growing application area for plate evaporators, mainly used to reduce wastewater volume and recover resources.
√ Wastewater Concentration
Used for evaporation, concentration, and volume reduction of landfill leachate, industrial wastewater, and sewage, achieving medium to zero liquid discharge requirements.
√ Resource Recovery
Used for heat recovery in the bleaching process in the paper industry; used for black water concentration in olive oil factories to achieve zero-waste production.
Multi-Effect Plate Evaporators (MEPs) are an important source of freshwater for ships and coastal areas. They can utilize engine waste heat for seawater desalination, with low energy consumption and high water purity (up to 5-10 ppm).
Plate evaporators can efficiently treat black liquor from the pulp and paper industry, achieving chemical recovery and energy utilization through evaporation and concentration.
In addition, plate evaporators can also be used for media cooling, condensation, and waste heat recovery in industries such as metallurgy, shipbuilding, and machinery. Generally speaking, plate evaporators are an ideal choice for applications requiring gentle and efficient evaporation and concentration of liquids, and where there are high requirements for product quality, space utilization, and energy consumption.
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