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The Evaporator for Liquid is a versatile heat exchange solution designed for industrial liquid processing. It efficiently concentrates, purifies, and recovers aqueous solutions, including corrosive fluids, high-viscosity liquids, and slurries. Its scalable design accommodates batch or continuous processing, with capacities ranging from laboratory-scale (5L/h) to industrial-scale (1,500L/h).
The evaporator uses a rotating wiper blade system—with PTFE-coated blades—to create a 0.1–0.5 mm liquid film on the heated surface, reducing residence time (≤30 seconds) and preventing product degradation (e.g., thermal breakdown of sensitive pharmaceuticals). This design achieves evaporation rates up to 1,500 kg/h in industrial models, with energy efficiency verified by ISO 50001 audits .
The vapor recompression (MVR) technology—using a centrifugal compressor—recycles 90% of the latent heat, lowering energy consumption by 70% compared to traditional evaporators (e.g., falling-film designs). The system includes a heat recovery loop that preheats incoming feed, further reducing energy demand.
The titanium and Hastelloy C-276 construction—titanium for wetted parts, Hastelloy for high-corrosion zones—withstands pH ranges from 1 to 14 and high chloride concentrations (up to 30,000 ppm). Seals and gaskets are made from perfluoroelastomers (FFKM) to ensure chemical compatibility.
The PLC-based system—integrated with SCADA—monitors temperature (±0.5°C), pressure (±0.1 kPa), and liquid level, ensuring consistent product quality. It includes recipe storage for 50+ processing parameters, allowing quick switching between products.
Wastewater Treatment: Concentrates heavy metal solutions (e.g., nickel, copper) and organic slurries (from food processing waste), reducing volume by 80% for disposal or recycling.
Food and Beverage: Processes juices (e.g., orange, grape), syrups, and dairy products (e.g., milk protein concentration) without thermal damage, preserving flavor and nutritional content.
Pharmaceuticals: Purifies active pharmaceutical ingredients (APIs) and recovers solvents (e.g., ethanol, methanol) with 99.9% purity, compliant with FDA cGMP standards.
Mining: Handles acid mine drainage (pH 2–3) and mineral processing fluids, recovering valuable metals like lithium and rare earth elements.
Q: How does the thin-film design prevent fouling?
A: The high liquid velocity (2–3 m/s) and mechanical wiping dislodge particles and prevent sedimentation, minimizing scale and residue buildup. This reduces cleaning frequency to once per week in most applications, with a CIP (Clean-in-Place) system available for automated cleaning.
Q: Can the evaporator handle solids content?
A: Yes. The unit processes liquids with up to 40% solids by weight, thanks to its self-cleaning blades and wide-channel design (10mm minimum gap). For higher solids (40–60%), a specialized rotor configuration is available to prevent clogging.
Q: What is the typical payback period for the MVR system?
A: The energy savings achieved by the MVR technology deliver a payback period of 12–18 months in high-throughput applications (≥500 kg/h). For smaller systems, payback is typically 24–36 months, with long-term savings exceeding initial investment by 300% over 10 years .
