Evaporators

Evaporators

We provide advanced evaporation and crystallization systems designed for efficient separation, purification, and recovery of valuable compounds in lithium battery material processing and recycling.

Evaporation crystallization is a widely used chemical separation technique that relies on the difference in solubility of substances at varying temperatures. By heating a solution, the solvent is evaporated, causing the solute to crystallize and precipitate. This process is valued for its simplicity, low energy consumption, and relatively low equipment investment, making it a common choice across multiple industries.

Typical applications include pharmaceuticals, food processing, chemical industry, lithium processing such as concentrating and crystallizing lithium carbonate, lithium hydroxide, and other battery-grade salts. We manufacture a range of evaporators to meet specific process needs, including:

  • MVR evaporators (Mechanical vapor recompression)
  • Falling film evaporators
  • Rising film evaporators
  • Forced circulation evaporators
Custom Evaporation Systems for Liquid Processing

Customized solutions for efficient liquid concentration in chemicals, food processing, pharmaceuticals, and battery material production.

    1. MVR Evaporator
    2. MVR Evaporator
      Evaporation capacity 500kg/h-60t/h
      Evaporation temperature 40-100℃
      The MVR evaporator is an advanced energy-efficient evaporation system that recycles its own secondary steam to reduce reliance on external energy sources. It compresses and reuses vapor generated during evaporation, making full use of latent heat from secondary steam and condensate within the evaporation system. View Details
    1. Rising Film Evaporator
    2. Rising Film Evaporator The rising film evaporator is designed for high-throughput evaporation and efficient heat transfer by utilizing the rapid upward flow of liquid and vapor within vertical heating tubes. As the liquid ascends, it forms a thin film along the inner tube surface, driven by the velocity of the generated secondary vapor.
      This design enables the feed solution to reach the desired concentration in a single pass, making the evaporation system highly efficient. Under atmospheric pressure, vapor velocities at the tube outlet typically range from 20 to 50 m/s, and can reach 100 to 160 m/s under vacuum conditions.       View Details
    1. Falling Film Evaporator
    2. Falling Film Evaporator
      Evaporation rate 10000-65000(kg/h)
      Evaporation temperature 45-90(℃)
      The falling film evaporator is a high-efficiency, non-circulating evaporator designed for the gentle and continuous evaporation of liquids. It is particularly well-suited for heat-sensitive materials and low-concentration solutions that are prone to degradation or unlikely to crystallize during processing. View Details
    1. Forced Circulation Evaporator
    2. Forced Circulation Evaporator The forced circulation evaporator is designed to enhance the flow velocity of liquid solutions by using an external circulation pump, ensuring efficient heat transfer and minimizing fouling or scaling. It is suitable for viscous liquids, slurries, or solutions with crystallizing components.
      The forced circulation evaporation system can be built with either a horizontal or vertical heating chamber, and the liquid circulation rate, ranging from 1.2 to 3.0 m/s, is adjusted through the pump. Lower speeds are selected when dealing with suspensions containing more crystals, lower pipe hardness, or higher viscosity fluids.       View Details
    1. Natural Circulation Evaporator
    2. Natural Circulation Evaporator The natural circulation evaporator relies on density differences in the liquid to drive circulation, without the use of external pumps. The typical circulation velocity is less than 1 m/s, making it suitable for applications where gentle flow is sufficient. To prevent scaling and crystallization, the heating tubes must remain fully submerged during operation. This evaporator type is best suited for solutions with mild scaling tendencies and low corrosiveness. View Details
    1. Wiped Film Evaporator
    2. Wiped Film Evaporator
      Area 2-30m²
      Motor power 3-30kW
      The wiped film evaporator is a highly efficient thermal separation equipment designed to continuously separate volatile compounds, that uses high-speed rotating blades to continuously distribute liquid into a uniform thin film along the inner wall of a heated cylinder. This design enables rapid evaporation or distillation, even for heat-sensitive, viscous, or fouling-prone materials. View Details

The compressor pressurizes the secondary vapor generated during evaporation, increasing its temperature, pressure, and enthalpy. This upgraded vapor is then reused as the heat source for continued evaporation, significantly improving energy efficiency.

Yes, the rising film evaporators are well-suited for vacuum operation, which allows for lower evaporation temperatures, higher efficiency, and reduced fouling or scaling. Under atmospheric pressure, vapor velocity at the tube outlet should be maintained at 20–50 m/s, while in vacuum conditions, it can reach 100–160 m/s for enhanced performance.

Falling film evaporators are suitable for a wide range of applications, including:

  • Heat-sensitive materials
  • Moderate to high-viscosity liquids
  • Chemical solutions
  • Wastewater treatment
  • Seawater desalination

Forced circulation evaporators are ideal for feed streams that are prone to scaling or crystallization, as well as those that are heat-sensitive, highly concentrated, or viscous, and those containing insoluble solids. They are widely used in the chemical, pharmaceutical, food, and environmental industries for evaporation and concentration.
Turnkey Evaporation Solutions

The evaporation and crystallization process is influenced by multiple factors, including feed composition, temperature, evaporation rate, and crystallization time.

Looking for support with drying, evaporation, or crystallization equipment?

Our team is ready to help.

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