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Triple Effect Evaporation Crystallization System for NaCl — Chinese Supplier
As a leading China-based manufacturer, Hanpu delivers turnkey triple-effect falling-film evaporation and vacuum crystallization systems tailored for sodium chloride (NaCl) recovery and refinery brines. Our solution converts saturated or impure brine into >99.5–99.9% NaCl crystals with excellent steam economy, stable quality, and fully automated operation.
Energy Efficient by Design
Three effects in cascade reuse latent heat. Typical steam economy: 1 kg steam evaporates 3.5–4.0 kg water (with TVR/MVR options for further savings).
NaCl-Focused Process Control
Inline density/conductivity, vacuum regulation, and mother-liquor recycle deliver tight crystal size and purity for table salt or chlor-alkali feed.
Hygienic, Easy to Maintain
Mirror-polished seamless tubes minimize fouling and ease CIP; short residence time protects product whiteness.
Process Flow — Triple Effect + Vacuum Crystallization
Feed & Preheat: Raw brine is metered through preheaters to the 1st-effect heater.
Effect 1 → Effect 2 → Effect 3: Live steam heats Effect 1; its vapor heats Effect 2; Effect 2 vapor heats Effect 3 under lower pressure and temperature.
Concentration Control: Online density targets trigger discharge to the crystallizer or recycle for re-evaporation.
Vacuum Crystallization: Concentrated liquor flashes/boils under vacuum to form pure NaCl crystals; centrifuge or filter separates crystals and mother liquor.
Condensation & Utilities: Final vapor condenses in the condenser; clean condensate is recovered. Non-condensables are removed via vacuum pump.
System Structure
Three effects (heaters & separators), preheaters, vacuum crystallizer with circulation pump, condenser & vacuum set, feed/circulation/discharge/condensate pumps, centrifuge (optional), CIP skid, PLC/HMI with historian, and full instrumentation (T/P/level/flow/vacuum/conductivity).
PLC/HMI, recipe control, alarms & interlocks, data logging
Applications
NaCl Production: Table salt and chlor-alkali feed with controlled crystal size.
Brine Refining & ZLD: Desalination reject, mining brine, and chemical effluents.
Integration: Compatible with RO/NF pretreatment and forced-circulation crystallizers.
Delivery Workflow
Feed & targets → Bench/pilot (optional) → Process & heat balance → Detailed engineering & fabrication → Installation & commissioning → Performance test & training → O&M support with spares.
About Hanpu
Hanpu is a professional EPC supplier of evaporation and crystallization systems in China. We focus on energy-saving multiple-effect and MVR technologies for salts and industrial wastewater. From feasibility and investment analysis to long-term operations, we deliver predictable payback, safety, and consistent quality.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Ecer Certification：
Verified Supplier
Jiangsu Hanpu Mechanical Technology Co., Ltd. is a project engineering company jointly established by Jiangsu Zhongyi Environmental Technology Co., Ltd., FERREO A/S in Denmark, Shanghai Jiaotong University and Nanjing Kingreat Machinery Co., Ltd. The company's production base is located in the H... Jiangsu Hanpu Mechanical Technology Co., Ltd. is a project engineering company jointly established by Jiangsu Zhongyi Environmental Technology Co., Ltd., FERREO A/S in Denmark, Shanghai Jiaotong University and Nanjing Kingreat Machinery Co., Ltd. The company's production base is located in the H...
