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Salt Pillow-Plate Static Crystallizer Systems

Categories Pillow Plate Crystallizer Systems
Brand Name: Hanpu
Model Number: HT-150
Certification: CE ISO
Place of Origin: China
MOQ: 10sets
Price: USD150-3000
Supply Ability: 20sets per months
Delivery Time: 45-60 working days
Packaging Details: standard exported wooden case
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Salt Pillow-Plate Static Crystallizer Systems

Salt Pillow-Plate Static Crystallizer Systems

High-efficiency static melt and solution crystallization for seawater, industrial and refined salt production lines.

Overview & Objectives

Pillow-plate static crystallizers deliver controlled temperature profiles and stable cycles to produce high-purity salt crystals with a compact footprint and reduced energy use. They are well suited for upgrades of medium to large salt plants.

Working Principle

Two metal sheets are laser-welded and hydraulically inflated to form “pillow" channels. Brine contacts cooled or heated surfaces so that supersaturation drives crystal growth. The wavy channels enhance turbulence and heat transfer, while smooth external faces simplify cleaning.

Static melting crystallizer made with pillow plates in workshop
Static melting crystallizer made with pillow plates (Platecoil® case image).
Verified Specs & Materials
ItemSpecificationSource
Case A (static melting crystallizer)Capacity 8 m³ / 10 m³ / 15 m³; Size 2540*2956*2630 mm; Material SS304; laser-welded; contact surface pickled & passivated.Platecoil® case
Case B (chemical-grade)Capacity 20 m³; Size 5820*2956*2630 mm; Material SMO-254; laser-welded; designed for chloride-rich media.Platecoil® case
Manufacturing & materialsLaser-welded plates inflated to create channels; options include stainless steels, duplex/super-duplex, nickel alloys, titanium; typical per-side thickness about 0.8–2.5 mm.DAV Pillow
20 m³ static melting crystallizer (SMO-254) for chloride-rich media.
Suggested Configuration (Example)
  • Plant target: ~300 t/day refined sea salt (plant-level).
  • One 20–25 m³ static melt crystallizer with double-embossed plates.
  • Materials: 316L or SMO-254 depending on chloride and impurity load.
  • Plate thickness: ~1.2–1.5 mm per side; laser-welded; pickled & passivated contact surfaces.

Final sizing must be validated via pilot tests with actual mother liquor (impurities such as Ca, Mg, Fe strongly influence kinetics and fouling).

Advantages
  • High heat-transfer area and turbulence within pillow channels.
  • Compact layout and reduced footprint compared with open ponds.
  • Controllable crystal size through temperature/hold-time control.
  • Easy cleaning; passivation or coatings extend service life.
  • Broad material options for corrosive brines.
Close-up of laser-welded pillow-plate surface
Close-up of laser-welded pillow-plate surface.
Optional Energy Integration

Integrating a Mechanical Vapor Recompression (MVR) evaporator can substantially reduce thermal demand for salt crystallization lines, with many systems operating primarily on electricity after start-up.

Sources
  • Platecoil® case: Static Melting Crystallizer Made with Pillow Plates — verified specs and image.
  • Platecoil® case: Pillow Plate Type Static Melting Crystallizer for Chemicals — verified specs and image.
  • DAV Pillow: How it is made — manufacturing process, materials, thickness ranges, engineering notes.
  • MVR background: Manufacturer notes on energy reduction for evaporation systems.
Quality Salt Pillow-Plate Static Crystallizer Systems for sale
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