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Qingdao Conqinphi Environmental Technology Group Co., Ltd., a professional manufacturer established in 2015 with over 200 employees and a factory area of 10,000-30,000 square meters, proudly presents the Falling Film Forced Circulation Low Temperature MVR Crystallizer for wastewater treatment. This innovative system combines the benefits of falling film evaporation, forced circulation, and mechanical vapor recompression (MVR) technology to achieve efficient crystallization at low temperatures. Designed for high-salinity industrial wastewater, it significantly reduces energy consumption while maximizing salt recovery and water reuse. With annual exports exceeding US$10 million, our equipment is trusted by clients across North America, Europe, Southeast Asia, and the Middle East.
Key Features & Technical Specifications
1. Advanced MVR Technology – The system uses a mechanical vapor compressor to recycle latent heat, drastically lowering operating costs. Compared to traditional multi-effect evaporators, energy savings can reach 50-70%.
2. Falling Film + Forced Circulation Design – The combination ensures uniform heat transfer, reduces scaling, and handles high-viscosity liquids and easy-crystallizing solutions. The forced circulation prevents fouling and maintains stable operation.
3. Low Temperature Operation – Operating at 40-70°C minimizes thermal degradation of sensitive components and reduces corrosion, suitable for heat-sensitive materials and acidic/alkaline wastewaters.
4. High Crystallization Efficiency – The crystallizer is optimized for large crystal growth, facilitating easy separation and dewatering. Typical salt recovery rate exceeds 90%.
5. Automatic Control System – PLC-based control with touch screen interface allows real-time monitoring of temperature, pressure, flow rate, and crystal size. Remote monitoring and alarm functions are available.
6. Robust Construction – Made from 316L stainless steel or optional titanium alloy, the equipment resists corrosion from chlorides, sulfates, and other aggressive chemicals. The system is designed for 24/7 continuous operation.
| Parameter | Value |
|---|---|
| Evaporation Capacity | 500 – 50,000 kg/h (customizable) |
| MVR Compressor Power | 15 – 500 kW |
| Operating Pressure | -0.08 to 0.3 MPa (gauge) |
| Crystallization Temperature | 40 – 70°C (adjustable) |
| Material of Construction | 316L SS / Titanium / Duplex SS (optional) |
| Electrical Supply | 380V/50Hz or custom |
Advantages for Your Business
- Reduce Operating Costs – MVR technology recycles vapor heat, achieving a specific energy consumption as low as 30-60 kWh per ton of water removed.
- Minimize Waste Discharge – Achieve near-zero liquid discharge (ZLD) by recovering valuable salts and clean water.
- Simple Maintenance – The falling film design with forced circulation reduces scaling and cleaning frequency. CIP (clean-in-place) system is available.
- Flexible Customization – Capacity, materials, compressor type, and automation level can be tailored to your specific wastewater composition and site conditions.
- Proven Reliability – Our equipment is certified under ISO9001, ISO14000, OHSAS18001, and other international standards, ensuring quality and safety.
Trust & Credibility
Since 2015, Qingdao Conqinphi Environmental Technology Group has been dedicated to providing advanced wastewater treatment solutions. With a team of 201-300 professionals and a factory spanning 10,000-30,000 square meters, we have exported our products to over 30 countries including North America, Europe, Africa, and Oceania. Our annual export value exceeds US$10 million, reflecting consistent customer satisfaction. We hold multiple certifications such as HACCP, TL900, QS9000, SA8000, ISO9001, ISO14000, OHSAS18001, and more, demonstrating our commitment to excellence. Our MVR crystallizers are widely used in the chemical, pharmaceutical, food processing, and mining industries, with many repeat customers. We offer comprehensive after-sales support, including installation guidance, commissioning, training, and remote technical assistance. Choose us as your partner for sustainable wastewater management.
Frequently Asked Questions (FAQ)
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Q: What types of wastewater can this crystallizer handle?
A: It is suitable for high-salinity brines, chemical effluents, landfill leachate, reverse osmosis concentrate, and industrial wastewaters containing sodium chloride, sodium sulfate, ammonium sulfate, etc. The low-temperature design also handles heat-sensitive solutions. -
Q: How does the MVR system save energy compared to traditional evaporators?
A: The MVR compressor recompresses the vapor generated during evaporation, raising its temperature and pressure, then uses it as the heating medium. This recycles latent heat, reducing steam consumption by up to 70% compared to single-effect evaporation. -
Q: What is the typical crystal size and how is it controlled?
A: Crystal size can be controlled between 0.1-2 mm by adjusting retention time, circulation rate, and temperature. The system includes a classification chamber for selective product removal. Larger crystals improve dewatering efficiency. -
Q: Can the equipment be customized for different capacities?
A: Yes, we offer capacities from 1 ton/day to 50 tons/day and larger. The design is modular, allowing expansion. We also offer different materials (316L, titanium, duplex) based on wastewater corrosivity. -
Q: What is the maintenance requirement?
A: The falling film design with forced circulation reduces scaling. Routine maintenance includes checking compressor oil, cleaning filters, and inspecting heat exchange surfaces. An optional CIP system automates cleaning. Typically, maintenance intervals are 3-6 months. -
Q: What certifications does your company hold?
A: We are certified under ISO9001, ISO14000, OHSAS18001, and others including HACCP, TL900, QS9000, SA8000, ISO17799, etc. Our products comply with international standards and can be adapted for local regulatory requirements. -
Q: What is the delivery time and shipping port?
A: Delivery time depends on configuration and capacity: typically 30-60 days after order confirmation. All equipment is shipped from Qingdao Port, China. We provide FOB, CIF, and other trade terms. -
Q: Do you provide installation and commissioning support?
A: Yes, we offer on-site installation supervision and commissioning services for international clients. Remote technical support is also available via video call. Training for operators is included.
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