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SS316L NaCl Evaporation System For Sodium Chloride

SS316L evaporation and crystallization system for sodium chloride refining

Food- and chemical-grade SS316L NaCl evaporation & crystallization line engineered for refined sodium chloride. The system integrates brine purification with vacuum evaporation (MEE and/or MVR) and controlled crystallization to deliver consistent grain size, high purity, and low moisture—ready for centrifuging, drying, sizing, iodization, and packing.

Key Benefits

High purity output: Stable NaCl grade with low insolubles and moisture.
Crystal size control: Tunable nucleation/growth for fine, table, or coarse salt.
Energy efficient: Multi-effect staging with optional MVR minimizes steam/OPEX.
Hygienic & durable: SS316L wetted parts, drainable layouts, CIP-ready design.
Line integration: Seamless tie-in to centrifuge, dryer, screens, and dosing skids.

Process & Thermal Economy

Clarified/polished brine is concentrated under vacuum using multi-effect and/or MVR duty. Tight control of ΔT/LMTD, circulation rate, and residence time stabilizes supersaturation, ensuring repeatable crystallization and low energy consumption.

Materials & Compliance

Wetted parts in SS316L (duplex/Ti on request). Sanitary finishes, traceable materials, drainable piping, and validated CIP supporting HACCP/ISO programs for edible salt production.

Process Overview — Refined Sodium Chloride

Flow: brine make-up & purification → vacuum evaporation (MEE/MVR) → crystallization → centrifugation → drying/sizing → iodization & packing

Brine make-up & purification: dissolving, Ca/Mg removal, clarification/filtration, polishing.
Vacuum evaporation: multi-effect and/or MVR to achieve target density at low temperature.
Crystallization: controlled supersaturation for target grain bands and clarity.
Solid–liquid separation: peeler/pusher centrifuge; mother liquor recycle.
Drying & sizing: fluid-bed/vibratory drying, sieving/polishing; iodization/anti-caking dosing.
Packing: retail 1 kg to 25–50 kg or bulk; weight checks and metal detection.

Key Components

Evaporator (falling film / forced circulation) with vapor–liquid separator
MVR compressor (turbo/Roots) and/or multi-effect heaters, condensers, vacuum system
Brine purification skid: dissolver, softening, clarification, filters/polishers
Crystallizer with slurry density control; peeler/pusher centrifuge
Fluid-bed/vibratory dryer; screens/polisher; iodization & anti-caking skid
PLC/HMI/SCADA; instruments (T/P/flow/cond/level); CIP skid

Performance & Sizing

Parameter	Typical Target / Range*
NaCl purity (dry)	≥ 99.2% (up to 99.7% with enhanced purification)
Final moisture	≤ 0.2% (grade-dependent)
Crystal sizes	Fine 0.2–0.5 mm; Table 0.5–1.2 mm; Coarse 1.2–2.5 mm
Line capacity	5–500 t/day (modular trains)
Energy use (MVR)	~15–40 kWh per ton H₂O evaporated
Fresh steam demand	Very low after start-up (with MVR)
Campaign length	≥ 10–20 days between CIP (feed-dependent)

*Performance depends on feed composition, scaling tendency, compression ratio, and heat-transfer area.

FAQ

Can the system produce multiple grain sizes?

Yes. We tune nucleation/growth and add post-sieving/polishing to supply fine, table, or coarse grades.

Is food-grade documentation available?

Material traceability, surface-finish records, and CIP validation are provided to support HACCP/ISO 22000.

How is energy consumption minimized?

Through multi-effect staging and optional MVR, plus heat recovery and optimized ΔT/LMTD and circulation.

Application

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Categories	MVR Evaporator
Brand Name:	Hanpu
Model Number:	MVR
Certification:	CE ISO
Place of Origin:	China
MOQ:	1set
Price:	USD180,000-USD650,000
Supply Ability:	1sets per 3 months
Delivery Time:	120days
Packaging Details:	Pallet or Wooden case