Custom Sea Salt ion Lines Factory & Service

Mechanical salt purification operates on the principle that calcium, magnesium, and sulfate impurities exist largely as fine surface coatings on sodium chloride crystal facets rather than within the solid crystal lattice. Our custom ion washing systems apply high-shear saturated brine washing to scrub the crystal surfaces without dissolving the core NaCl. Differential density hydro-cyclones then separate the lighter insoluble calcium sulfates and magnesium compounds from the denser crystalline sodium chloride. For embedded ionic impurites, controlled mechanical roll crushers fracture the raw crystals along natural cleavages, exposing internal impurity pockets to secondary scrubbing stages.

Saturated chloride slurries—especially when elevated in temperature or combined with free halogen ions (Cl₂ or Br₂)—induce severe pitting, stress corrosion cracking (SCC), and crevice attack even in high-alloy austenitics like AISI 316L. While vulcanized natural rubber suffers from oxidative embrittlement and swelling when exposed to halogen gases or acidic brines, virgin PTFE (Polytetrafluoroethylene) maintains total chemical inertness across pH 0–14 and continuous operating temperatures up to 200°C. Ruitu utilizes heavy-wall isostatically molded PTFE linings mechanically locked to structural carbon steel shells, providing both full pressure containment and total corrosion immunity.

Yes. We design dual-regime modular processing architectures. By configuring automated bypass valves and secondary wash loops, operators can adjust washing intensities and bypass or engage chemical additive dosing (such as anti-caking potassium ferrocyanide or iodization systems). All contact components satisfy international food-contact hygiene specifications while preserving the structural robustness required for heavy industrial chlor-alkali feedstock throughput.

To engineer an optimized line, we require: (1) Complete ionic chemical assay of your raw feed (NaCl, Ca²⁺, Mg²⁺, SO₄²⁻, insoluble sediment, moisture content), (2) Target daily or hourly throughput (metric tons per day), (3) Target finished product grade specifications (moisture percentage, particle size curve, NaCl purity percentage), (4) Available on-site utilities (boiler steam availability, electrical capacity/frequency, fresh water volume), and (5) Ambient environmental conditions (coastal proximity, humidity, seasonal temperature extremes).

Every equipment assembly completes shop pre-assembly, dynamic dry-run alignment, and hydrostatic/spark testing at our 28,000 m² facility prior to crating. For overseas delivery, Ruitu dispatches specialized senior mechanical and chemical commissioning teams to oversee site rigging, pipework integration, electrical terminal checks, and cold/hot line start-ups. We provide exhaustive classroom and hands-on operational training until client technicians independently sustain design capacity benchmarks.