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Top » Catalog » Zero Waste - Recycling Vacuum Evaporators » Vacuum Evaporators with scraper 250 - 3.000 l/d
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Pre-filter for sediments with inox net 50 mic
Pre-filter for sediments with inox net 50 mic

43.20 euro



Vacuum Evaporators   VR-HP with scraper
 from 250 to 3.000 l/day


Heat pump vacuum evaporator fit to concentrate water based solutions. High-efficiency immersed heat exchanger. Built-in upper condenser. Full automatic operation system by PLC; display of main parameters by LCD screen.

Standard manufacturing AISI316 – special alloys on demand. Range from  250 to 3000 l/day  of evaporated water.

Main  Characteristics

  • 95% Waste Water Recycling (zerowaste).
  • Power supply by heat pump.
  • Lined outer heat exchanger.
  • Independent internal scraping device.
  • Charge & discharge of product, distillate and concentrate: completely automatic.
  • Check by PLC Siemens S7-200 with OP7.
  • 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

  • Treatment and recycling of inks.
  • Treatment of development baths and exhausted fixing baths.
  • Treatment of waters from washings of looms and print cylinders.
  • Treatment of viscous or scaling liquids.
  • Wastewaters from pressure die-casting (release agents, glycols, lubricating oils).
  • Printing and photography.
  • Chemical Pharmaceutical and Cosmetics.
  • Oily emulsions, wastewater from vibratory-finishing, exhausted baths.
  • Treatment of high foamy liquids.

Main Principals

The system consists of a vacuum autoclave (residual pressure 6,5 kpa) divided in one boiling section (2) for the evaporation of the wastewater at low temperature (30°C), and one condensation section (5).

The circuit of the heat pump consists of a compressor at electric driving (1) that compresses the freezing gas Freon at 60°C into the outer lined exchanger, causing the ebullition and the evaporation of the water. On leaving the exchanger, the gas flows through the undercooler (3) and vaporizes by an expansion valve (4) into the condensation coil (5). During the expansion process, the gas absorbs heat making it possible the condensation of the steam risen through the central chimney. The extraction pump (7) extracts the condensed steam stored in the vacuum service tank (8). A pump, once achieved the set concentration, without working interruptions, automatically discharges the residual concentrate.
The non-stop scraping action by scraping shovels on inner side (10) keeps always clean the surface of thermal exchange and avoids encrustations that could compromise the good working of the concentrator. This perpetual motion and the structure of the surface of thermal exchange allow achieving of high concentrations.



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