Evaporation Technology

Forced Circulation Evaporator
For Scaling & Crystallising Feeds

High-velocity circulation prevents scale formation on tube walls — ideal for salting-out, crystallising, or high-TDS feeds that cause fouling in falling film systems.

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Anti-FoulingHigh-velocity circulation

Salt CrystallisationMSMPR / DTB option

ISO CertifiedManufacturing & QA

Turnkey EPCDesign to commissioning

Rototech Forced Circulation Evaporator — Anti-Scaling Design

Manufactured in Ahmedabad, Gujarat, India

ISO Certified Anti-Scaling ZLD Ready

Technology

Forced Circulation Design Principle

Liquid circulates at 2–4 m/s through external shell-and-tube heater tubes. Flash evaporation occurs in the separator body above the liquid surface, not at the tube wall — eliminating scale formation. Rototech designs the pump, heater, and separator geometry for your specific TDS, scaling index, and required supersaturation ratio. Salt crystallisation variants (Oslo, DTB) are available for salt recovery in ZLD systems.

Handles Scaling Feeds

High-velocity tube-side flow prevents salt crystallisation on heat transfer surfaces.

Salt Recovery Option

Crystalliser variants recover reusable NaCl, Na₂SO₄, or other salts from ZLD brine.

Corrosion-Resistant MOC

SS 316L, Duplex, Titanium options for aggressive feeds with high chloride content.

Technical Data

FCE Specifications

Parameter	Details
Capacity	500 – 40,000 L/hr
Circulation Velocity	2 – 4 m/s (anti-scaling)
Feed TDS	High TDS / saturated brine compatible
MOC	SS 316L, Duplex, Titanium
Crystalliser Type	MSMPR, DTB, Oslo (optional)
Instrumentation	PLC/SCADA with remote monitoring

Applications

FCE Use Cases

ZLD Brine Concentration

Concentrate saturated brine before ATFD or crystalliser for true zero liquid discharge.

Salt Recovery

Recover high-purity NaCl, Na₂SO₄, or other industrial salts for resale or reuse.

Chemical & Dye Units

Handles complex high-TDS chemical effluent where falling film would foul rapidly.

Design your forced circulation system

Share your feed TDS, scaling index, and capacity — Rototech will size the perfect forced circulation evaporator.

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Forced Circulation EvaporatorFor Scaling & Crystallising Feeds