- Processes viscous and heat-sensitive liquids with low temperature jumps
- High evaporation capacity and excellent energy efficiency
- 100% electric evaporator
AVAILABLE MODELS AND MAIN TECHNICAL FEATURES
We design, manufacture, and install falling film vacuum evaporators, a highly efficient technology for the treatment of industrial wastewater: they allow the separation of high-quality water from an effluent with a high concentration of contaminants.
They use electrical energy, operating under vacuum to reduce the boiling temperature, thereby decreasing energy consumption.
The offer focuses on the ENVIDEST MVR FF series, with capacity for flow rates up to 1980 l/h:
Technology: Mechanical Vapor Recompression (MVR) / Falling Film (FF) / Forced Circulation (FC)
Capacity (l/h): 120 to 1980
Electric consumption per 1 m³ of distillate produced: 35 to 60 kWh/m³
Vacuum: ≈ 700 mbar
Evaporation temperature: ≈ 90 °C
KEY ADVANTAGES
All our falling film evaporators are especially suitable for:
- Effluents too viscous for natural circulation
- Liquids where retention time must be minimized
- Effluents requiring a limited temperature difference
- Minimization of volume and costs of waste to be managed
- Very compact evaporator for limited plant space
MAIN COMPONENTS
The following video shows our range of vacuum evaporators:
OPERATION OF OUR FALLING FILM EVAPORATORS
Start-up and filling
When the evaporator starts up, the fill valve opens and allows the product to enter the boiler until it reaches the operating level.
At the same time, the heaters begin to heat the boiler until reaching the operating temperature, and the pump/compressor starts to create a vacuum in the boiler.
Forced circulation
Once the correct level is reached, the recirculation pump activates to create a constant flow between the boiler and the heat exchanger, ensuring effective exchange and thus being able to treat complex effluents.
Downward film
When the temperature and vacuum reach operating values, the vapor rises through the cyclonic separator, which separates the suspended droplets in the vapor column to separate and create a film that returns to the boiler to be processed again.
The vapor that passes through the cyclonic separator goes to the exchanger via compressor.
Condensation and distillate
The steam condenses once it is pressurized by the Roots compressor and transfers part of its heat to the boiler product that is being recirculated.
Upon leaving the main heat exchanger, it transfers part of the remaining heat to a secondary heat exchanger that serves to heat new product before entering the boiler to refill the level.
After this point, the distillate is ready to leave the circuit.