Thermal Vacuum Evaporator-Crystallizer
The DESALT VR series vacuum evaporator-crystalliser is designed to treat scaling aqueous-based streams, as well as for achieving high product concentration. The equipment can be manufactured to operate using saturated steam or hot water to heat the product to be concentrated. The condensation of the generated vapour is carried out by supplying cooling water.
Equipped with an internal motorised scraper, the evaporator ensures continuous cleaning of the heat exchange surface in the evaporation vessel, preventing the formation of scale. It allows the precipitation of crystals from dissolved solids by increasing the concentration above the solubility limit.
The operation of the equipment is fully automatic - 24 hours a day.
Our evaporators DESALT VR
Main features
- Technology: Evaporation with thermal energy
- Single/Multi-Effect: Single-Effect
- Thermal Energy for Evaporation: Saturated steam or hot water
- Thermal Energy for Condensation: Cooling water
- Vacuum: ≈ 200 mbar
- Evaporation Temperature: ≈ 60 °C
- Evaporation Vessel: Vertical conical bottom with scraper
- Droplet Separator: None
- Heat Exchanger for Heating: Shell and tube
- Vacuum System: Venturi Ejector or liquid ring pump (depending on the model)
- Control Unit*: PLC Siemens with HMI touch screen
- Protection: IP54
- Electricity Supply**: 400 V III + PE 50 Hz
- Standard Manufacturing Material: 1.4401/1.4404 (AISI 316/AISI 316L)
- Special Anti-corrosion Manufacturing Material***: 1.4410 (Superduplex 2507)
* Different PLC manufacturer available on request
** Different voltage supply available on request
*** Consult other available material options
Diagram
Technical specs
| Parameter | Unit | 2000 | 3000 | 5000 | 6000 | 10000 | 20000 |
|---|---|---|---|---|---|---|---|
| Capacity* | L/day | 2000 | 3000 | 5000 | 6000 | 10000 | 20000 |
| Electricity Consumption | kWh | 4,2 | 4,2 | 4,6 | 4,6 | 4,8 | 5,0 |
| Thermal Energy for Evaporation | kWht | 65 | 95 | 160 | 190 | 315 | 630 |
| Thermal Energy for Condensation | kWht | 65 | 95 | 160 | 190 | 315 | 630 |
| Length | mm | 3000 | 3100 | 3300 | 4000 | 4100 | 4100 |
| Width | mm | 1600 | 1600 | 2000 | 2000 | 2000 | 2000 |
| Height | mm | 3260 | 3760 | 3945 | 4250 | 5000 | 5510 |
* Data refer to clean water when working continuously in standard conditions (T = 20 °C, P = 1013 mbar).