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Evaporators: Concentrating Solutions for Efficient Processing

Evaporators are a cornerstone of numerous industrial processes, playing a crucial role in concentrating solutions by removing excess moisture. These versatile machines are utilized across various industries to increase the concentration of liquid products, leading to enhanced quality, extended shelf life, and reduced transportation costs. In this comprehensive guide, we explore the functionality, benefits, and applications of evaporators, shedding light on their significance in the world of industrial processing.

Understanding Evaporators

Evaporators are especially designed to separate the solvent, typically water, from a solution, leaving behind a more concentrated product. The process involves heating the solution to facilitate vaporization and then condensing the vapor back into liquid form.

Concentration Process

The operation of evaporators revolves around these key steps:

  1. Heating: The solution is heated, causing the solvent to evaporate and form vapor.
  2. Vaporization: The vapor is collected and separated from the solution's components.
  3. Condensation: The collected vapor is cooled and condensed back into liquid form, creating a concentrated solution.

Advantages of Evaporators

  • Enhanced Shelf Life: Concentrating solutions reduces water content, extending the shelf life of the end product.
  • Cost Efficiency: Evaporation minimizes transportation costs by reducing the volume of liquid that needs to be transported.
  • Product Customization: The concentration process allows manufacturers to customize product characteristics such as viscosity and taste.
  • Resource Conservation: Evaporators contribute to water conservation by recovering valuable solvents.

Advantages of vacuum concentration:

Liquid substances in a solvent evaporate quickly when boiling, with the boiling point of the solvent changing due to alterations in pressure. When pressure increases, so does the boiling point, and when the pressure decreases, the boiling point increases as well. For example, milk boils at 101 kPa at a temperature of 100 ℃, whereas under vacuum conditions of 82.7 to 90.6 kPa, the boiling point dramatically reduces to just 45 to 55 ℃, facilitating efficient evaporation. Moreover, by avoiding exposure to high temperatures, vacuum concentration prevents the degradation and loss of heat-labile components, ensuring the preservation of nutrients and aromatic compounds. Specifically, certain compounds such as amino acids, flavonoids, phenols, vitamins, and others are shielded from thermal damage. Additionally, for some substances like carbohydrates, proteins, pectin, and viscous materials, low-temperature coking helps prevent evaporation, thus retaining their beneficial properties.

Applications Across Industries

Evaporators find applications in diverse sectors:

  • Food and Beverages: Evaporators concentrate fruit juices, dairy products, and other liquids for better flavor and longer shelf life.
  • Pharmaceuticals: They are used to process medicine, creating concentrated solutions for various medical applications.
  • Chemical Industry: Evaporators concentrate chemicals, making them easier to handle, transport, and store.
  • Waste Management: Evaporators aid in the treatment of industrial wastewater by separating water from contaminants.

Partnering with FoodTechProcess for Evaporator Solutions

FoodTechProcess offers advanced evaporator solutions and batch concentration pilot plants designed to meet the diverse needs of industrial processes. Our evaporators are engineered for efficiency, precision, and reliability, ensuring optimal concentration processes and contributing to enhanced product quality. We offer low-temperature vacuum evaporators (distillers) with and without a "heat pump", the processing temperature (evaporation of water) is 35 degrees Celsius. For thickening, e.g. hemp oil, hemp, etc.

Compact vacuum evaporation machine with an external circulation heat exchanger for the production of test batches of products, development of new recipes and technological maps.

  • Compact installation
  • Capable of replicating all product processing techniques used in industrial circulating vacuum evaporation units
  • Preserves the natural taste, aroma and color of the product
  • Can be used to produce small batches of products
  • Material: Stainless steel
  • Principle of operation: Batch mode
  • Type of the equipment: Single machine
  • Country of origin: Slovakia

The vacuum evaporation unit is specially designed for thickening dense food products in industrial quantities. The evaporator can be used for the production of thick syrups, caramel masses, dense fruit masses, as well as for the production of pectin, or heat-stable fillings with a high productivity.

  • High performance
  • Rotary spraying system with a powerful electric drive
  • Evaporation in a thin layer with a large heat transfer area
  • Low investment installation costs
  • Tangential entry for product swirling
  • Material: Stainless steel
  • Principle of operation: Batch mode
  • Country of origin: Slovakia
  • Voltage: 380-400V

A circulation-type vacuum evaporator usually refers to a combined version of an evaporator that takes advantage of other types as well to improve evaporation efficiency particularly by reducing concentration time and when processing heat-sensitive products such as milk.

  • The external circulation circuit with heating intensifies the cyclic evaporation process.
  • The forced circulation system ensures a decrease in the risk of localized product overheating.
  • The condenser enables a deep vacuum and maintains a low evaporation temperature.
  • Utilizing a mixing device with a spray system facilitates product evaporation in a thin layer, mimicking a film-type evaporator.
  • Heating: Steam
  • Material: Stainless steel
  • Country of origin: Slovakia
  • Total power, kW: 2,4
  • Voltage: 380-400V

The concentration and thickening line line has been especially designed for industrial dairy production facilities with a small surplus of milk or smaller milk processing businesses that want to expand their product range. It has an estimated productivity of up to 50-120 kg/hour during continuous operation.

  • Professional industrial technology with compact dimensions
  • A large number of additional equipment and options to choose from
  • Material: Stainless steel
  • Principle of operation: Continuous mode

Multifunctional vacuum unit MINI5 - is ideal for cooking, drying, concentrating, mixing and much more. Suitable for laboratories and small-scale production.

  • Processing heat-sensitive products at lower temperatures
  • Ideal for making creamed honey
  • Possibility of vacuum drying honey
  • Material: Stainless steel
  • Engine power, kW: 0,12
  • Country of origin: Slovakia
  • Volume: 5l

Equipment for the production of condensed milk from pre-pasteurized milk. This equipment can be manufactured in models with production capacities up to 285 kg/h, it can also be customized based on individual requirements.

For more information, please contact: sales@foodtechprocess.com

A vacuum deaerator is extensively used in the food industry to remove gases from products that may retain some bubbles post-processing. Additionally, a flow deaerator is utilized to minimize foaming in products, ensuring a denser structure, especially prior to packaging. Vacuum deaerators play a crucial role in eliminating specific odors from the products, such as in the production of juices, purees, and herbal drinks. This process significantly contributes to enhancing the overall quality and taste of the final product.

  • Enhances product quality, structure, and shape
  • Prevents oxidation by removing gases
  • Preserves organoleptic properties and extends the shelf life
  • Suitable for thick and viscous products
  • The flow principle allows for the installation of this equipment in existing production lines
  • Material: Stainless steel
  • Principle of operation: Continuous mode
  • Country of origin: Slovakia
  • Voltage: 380-400V
  • Max vacuum: -0,8 Bar

Model VMG S is an effective and reliable vacuum homogenizing unit designed to produce a wide range of liquid, pastry and viscous products with different requirements for the production conditions.

For a price quote, send us an email to sales@foodtechprocess.com

The price is set for the basic version of the evaporation unit without additional options.

A compact vacuum evaporation unit that allows you to concentrate solutions, mixtures, and various products by evaporating the solvent. A modular version based on the basic 110/100 vacuum reactor.

  • Gravity mixing - 25% more efficient
  • Reinforced agitator design with no blind spots
  • Condensation and vapor removal system
  • Easily disassembled mixing device
  • Large heat exchange area: jacket over the entire height of the reactor
  • Ability to measure and monitor condensate volume (optional)
  • Material: Stainless steel
  • Engine power, kW: 0,25
  • Principle of operation: Continuous mode
  • Country of origin: Slovakia
  • Volume: 100l
  • Max vacuum: -0,8 Bar
  • Duplicator volume: 3l
  • Heat transfer area, m2: 1,05

The price is indicated with a semi-automatic control panel

The vacuum kettle is designed for use in public catering establishments (restaurants, hotels, catering companies) and small manufacturing businesses. This equipment enables boiling, blanching, frying, evaporation, pasteurization, mixing, or stirring.

  • A unique multifunctional device
  • Possibility to cook/fry under atmospheric or vacuum conditions
  • Laboratory version of a Vacuum Fryer
  • Built-in condensation and secondary steam removal system
  • Intense electric heating
  • Sectional basket with a lid
  • Built-in system for separating and removing excess liquid from the product
  • Heating: Electricity
  • Material: Stainless steel
  • Heating power, kW: 5
  • Volume: 10l
  • Oil volume: 8l
  • Voltage: 380-400V
  • Max vacuum: -0,8 Bar

The Atmospheric Evaporating Pan efficiently concentrates liquids by evaporating them on a large surface area, while also being suitable for various cooking methods including braising, cooking, and roasting.

For a price quote, send us an email at sales@foodtechprocess.com

An evaporator concentrator-crystallizer is a multifunctional unit that concentrates liquids by evaporating water and inducing crystallization for the production of concentrated solutions or crystalline products.

For a price quote, send us an email to sales@foodtechprocess.com

A vacuum evaporator is a device used to evaporate liquids at lower temperatures by creating a vacuum environment, which reduces the boiling point of the liquid and enables efficient evaporation without thermal degradation of sensitive materials. Working volume up to, l: 1900 l.

For a price quote, send us an email to sales@foodtechprocess.com

Plant for evaporating, concentrating and crystallizing solutions. Vacuum evaporator ensures a complete separation of the solution into a solid fraction and pure water.

For a price quote, send us an email to sales@foodtechprocess.com

An evaporating unit is utilized to remove moisture from sweet substances through heating, transforming them into concentrated syrups or solutions.

For a price quote, send us an email to sales@foodtechprocess.com

We offer different types of vacuum evaporation machines, this type is an affordable option for efficient evaporation in a stainless steel unit.

For a price quote and more information, send us an email at sales@foodtechprocess.com

We offer wide range of evaporating equipment for a wide range of products. Price depends on the capacity and product used.

For more information, send us an email to sales@foodtechprocess.com

Deaerator is used for the removal of air bubbles from the puree. Price depends on the required volume and production capacity.

For more information, send us a request. 

Price depends on the capacity and product. 

The compact line of double-type vacuum cooking kettles comprises a complex of batch food cooking units designed for periodic thermal processing, vacuum mixing, and deaeration of various products under sub-atmospheric pressure.

For more information, please contact us at sales@foodtechprocess.com

  • Material: Stainless steel
  • Principle of operation: Batch mode
  • Country of origin: Slovakia
  • Volume: 2x300l/ 2x600l
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