Multistage Evaporators EVS.W 10-100 m3/day

Multi Effect Evaporators  EVS.W from 10 to 100 m³/day

“Modular Multi Effect” vacuum evaporator fit to concentrate high capacities of waste and water based solutions. Vertical  boiling vessel with High-efficiency immersed thoroidal heat exchanger. Full automatic operation system by PLC display of main parameters by LCD screen.

All evaporation units aim at the natural separation of water from a pollutant solution avoiding the addition of chemicals and human’s assistance. The system can self carry out all operations of filling, treatment, discharging of the distillate and evacuation of the concentrate, and all controls as to guarantee a perfect and safety operation.

The goal of our evaporation plants is the reduction of pollutants obtaining a distillate that can be recycled for a new production process, or discharged respecting environmental laws.

Standard manufacturing AISI316 – special alloys on demand. Range from  10 to 100 m3/day  of evaporated water.

Main  Characteristics

• 95% Waste Water Recycling (zerowaste).
• Energy by hot water or steam.
• 1 το 3 vertical boiling vessels.
• Thoroidal immersed heat exchanger.
• Exploting of the heat at multiple effect.
• Charge & discharge of product, distillate and concentrate: completely automatic.
• Check by PLC Siemens S7-200 with TP 170B keyboard
• Easy inspection of boiling chamber and exchangers by flanges.
• Main frame and condensation area AISI 316 & 316L made.
• Special alloys on demand.
• Teleservice for remote control and service.

Main Applications

• Wastewaters from pressure die-casting (release agents, glycols, lubricating oils).
• Wastewaters from galvanization (Chromium, Nickel, Copper), exhausted baths, rinses, eluates.
• Wastewaters from aluminium anodizing & electrostatic paint, exhausted baths, rinses, eluates.
• Aluminium Anodizing Plants.
• Printing and photography.
• Chemical Pharmaceutical and Cosmetics.
• Oily emulsions, wastewater from vibratory-finishing, exhausted baths.
• Treatment of high foamy liquids
• Treatment of all water-based solutionsower supply by heat pump.

Multiple Effect Vacuum Evaporators

A very efficient method of evaporation is that obtained by the use of multiple effect systems.

The working principle respects the simple physic reaction of a liquid exposed to heating but exploiting the vacuum degree that allows a low temperature operation.

The energy required by the machine is hot water, steam or any other liquid hot source, and does not require power or fuel to run. It is so possible to treat large capacities of liquids with very limited costs.

The machine consists of one, two or three vacuum vessels so joined together that the hot source feeds the first vessels (or called boiler); the steam produced by the boiling of the wastewater flows to the second boiler, and the steam generated in the second goes to heat the third vessel, or condensed by a condenser.

The effect is like a “cascade” with evident energy saving. In fact, the energy absorbed by a three-effect plant, is 1/3 of the energy required by a one-effect unit with same production capacity.
The condensation of the steam produced by the last effect happens by a special built-in condenser at closed circuit and does not require waste of water except for a small quantity for refilling, according to humidity and temperature of the environment.The machine is very economical in its use and the total absence of cooling circuits or sophisticated equipment guarantees a safety operation and a very limited maintenance.The effect is like a “cascade” with evident energy saving. In fact, the energy absorbed by a three-effect plant, is 1/3 of the energy required by a one-effect unit with same production capacity.The condensation of the steam produced by the last effect happens by a special built-in condenser at closed circuit and does not require waste of water except for a small quantity for refilling, according to humidity and temperature of the environment.

The machine is very economical in its use and the total absence of cooling circuits or sophisticated equipment guarantees a safety operation and a very limited maintenance.

Guaranteed by our customers