Milk Processing Plant

Product Details:

A Multi Effect Evaporator (MEE) is an industrial system used to concentrate liquids—typically by removing water through evaporation—using multiple stages (effects) to save energy. It is widely used in industries like chemicals, pharmaceuticals, food, distilleries, pulp & paper, and in Zero Liquid Discharge (ZLD) systems.

The system works on the principle of evaporation under reduced pressure and steam reuse across multiple effects, reducing steam consumption:

1. First Effect: Live steam is supplied to the first evaporator. It heats the feed solution, and water evaporates.

2. Second Effect: The vapor from the first effect (still hot) is used as the heating medium for the second effect.

3. Subsequent Effects: This process continues across 3, 4, 5, or more effects. The boiling point drops in each effect due to vacuum, enabling evaporation at lower temperatures.

4. Final Concentration: Concentrated product is collected at the last effect, and vapors are condensed via condensers or reused via MVR (Mechanical Vapor Recompression).

1. Forward Feed – Feed enters first effect and moves forward; simple and energy-efficient for hot feed.

2. Backward Feed – Feed enters last effect and moves backward; more suitable for viscous or heat-sensitive fluids.

3. Mixed Feed – Combination of forward and backward for optimal performance.

4. Thermal Vapor Recompression (TVR) or Mechanical Vapor Recompression (MVR) can be added for enhanced energy savings.

• Zero Liquid Discharge (ZLD) Systems

• Effluent concentration in chemical industries

• Dairy industry for milk concentration

• Sugar industry for syrup concentration

• Pharmaceuticals – to concentrate APIs or intermediates

• Textile/Dyeing plants – for wastewater treatment

• Heat Transfer Area

• Boiling Point Elevation (BPE)

• Viscosity of the fluid

• Scaling tendency

• Corrosiveness (use of SS316, Duplex, or Titanium)

• Vacuum and steam requirements