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Help CenterPlate Freezing Crystallizer Equipment for Inorganic Salt Evaporation Crystallization
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As a leading manufacturer from Qingdao Conqinphi Environmental Technology Group Co., Ltd., we are proud to introduce our advanced Plate Freezing Crystallizer Equipment for Inorganic Salt Evaporation Crystallization. With over 10 years of experience (since 2015) and a factory spanning 10,000–30,000 square meters, we have delivered efficient crystallization solutions to global clients across North America, Europe, Southeast Asia, and beyond. Our equipment is designed to recover high-purity inorganic salts from evaporative brine streams while minimizing energy consumption and environmental impact. This innovative freezing crystallization technology offers a compelling alternative to traditional thermal evaporation, especially for heat-sensitive or scale-prone solutions.
Core Features & Technical Advantages
- Efficient Heat Transfer: Corrugated plate design maximizes surface area for rapid cooling, achieving crystallization at temperatures as low as -10°C without freezing the entire solution.
- Modular & Scalable: Plate stacks can be easily added or removed to adjust capacity from 500 L/h to 50,000 L/h, making it suitable for both pilot and full-scale production.
- Low Energy Consumption: Compared to conventional evaporation, freezing crystallization requires 30–50% less energy because it exploits the latent heat of fusion rather than vaporization.
- Superior Crystal Quality: Controlled nucleation and growth produce uniform, free-flowing crystals with narrow size distribution, reducing downstream washing and drying costs.
- Anti-Scaling & Anti-Corrosion: 316L stainless steel plates resist aggressive brine chemistry, and the smooth plate surfaces minimize scale deposition.
- Fully Automatic Control: PLC-based system monitors temperature, flow rate, and crystal slurry density, adjusting parameters in real time for optimal yield.
- Environmentally Friendly: No chemical additives required; closed-loop refrigeration eliminates vapor emissions and reduces wastewater volume.
Technical Specifications (Typical Model)
| Parameter | Value |
|---|---|
| Model | PFC-1000 |
| Processing Capacity (L/h) | 1,000 |
| Plate Material | SS316L |
| Coolant | Refrigerant R404A / Chilled glycol |
| Crystallization Temperature Range | -5°C to -15°C (adjustable) |
| Power Consumption (kW) | 55 |
| Dimensions (L×W×H mm) | 3500×1500×2200 |
| Control System | PLC + 10-inch HMI |
Customization Options: We can adjust plate geometry, number of plates, refrigeration unit size, and automation level to match your specific brine composition and target crystal size. Optional features include CIP (clean-in-place) systems, remote monitoring, and anti-bacterial coatings for food-grade applications.
Typical Applications
- Inorganic Salt Recovery: sodium chloride, potassium chloride, sodium sulfate, magnesium sulfate, calcium chloride, etc.
- Zero Liquid Discharge (ZLD) Systems: polishing step after reverse osmosis or evaporation to recover valuable salts.
- Brine Concentration & Crystallization: for desalination reject brine or industrial wastewater.
- Pharmaceutical Intermediates: crystallization of heat-sensitive organic/inorganic intermediates.
Why Choose Conqinphi?
Established in 2015, Qingdao Conqinphi Environmental Technology Group employs over 200 skilled professionals and has an annual export value exceeding US$10 million. Our factory is certified with ISO9001, ISO14000, OHSAS18001, HACCP, SA8000, and many other international standards (full list available on request). We have successfully delivered crystallization equipment to more than 20 countries, including the USA, Germany, Brazil, Saudi Arabia, and Australia. Our technical team provides turnkey support from process design to commissioning. We also offer a 12-month warranty and lifetime spare parts supply. With a strong R&D center and dedicated after-sales service, we are your reliable partner for sustainable salt crystallization solutions.
Ready to optimize your inorganic salt crystallization process? Contact us today for a tailored proposal and free lab-scale test.
Frequently Asked Questions
-
Q: What types of inorganic salts can be processed with this equipment?
A: It is suitable for a wide range of salts including NaCl, KCl, Na₂SO₄, MgSO₄, CaCl₂, (NH₄)₂SO₄, and many others. We can run a lab test with your sample to confirm feasibility. -
Q: How does freezing crystallization compare to traditional evaporation?
A: Freezing crystallization operates at low temperatures, which reduces energy consumption by 30–50%, avoids scaling and corrosion issues, and yields purer crystals. It is particularly advantageous for heat-sensitive compounds. -
Q: What is the minimum and maximum capacity you can offer?
A: Our standard models range from 500 L/h to 50,000 L/h. For larger capacities, we can design multiple units in parallel or customize according to your project. -
Q: Do you provide installation and training?
A: Yes, we offer on-site supervision for installation and commissioning, as well as operator training. Remote technical support is also available. -
Q: What is the typical delivery time?
A: For standard models, delivery is 30–45 days after down payment. Customized systems may require 60–90 days. -
Q: Can the equipment handle variations in feed concentration?
A: Yes, the PLC control system automatically adjusts the cooling rate and residence time to maintain stable crystal production even with ±20% fluctuation in feed concentration. -
Q: What certifications does your company hold?
A: We are certified under ISO9001, ISO14000, OHSAS18001, HACCP, SA8000, TL900, QS9000, and others. Certificates can be provided upon request. -
Q: Is there a warranty?
A: We provide a 12-month warranty covering manufacturing defects. Extended warranty and maintenance contracts are negotiable.
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