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Qingdao Conqinphi Environmental Technology Group Co., Ltd. proudly presents our High Recovery Multi-Effect Evaporation Crystallizer with MVR Heat Pump, a state-of-the-art solution designed for maximum energy efficiency and superior crystallization performance. As a leading manufacturer since 2015, with a factory spanning 10,000-30,000 square meters and a dedicated team of 201-300 employees, we engineer this system to achieve recovery rates exceeding 95%, significantly reducing waste volume and operational costs. Our crystallizer integrates advanced MVR (Mechanical Vapor Recompression) heat pump technology with multi-effect evaporation, offering a sustainable and cost-effective approach for industries requiring high-purity salt recovery or zero liquid discharge (ZLD) processes.
This equipment is ideal for treating high-salinity wastewater, concentrating chemical solutions, and recovering valuable by-products in sectors such as chemical processing, pharmaceuticals, food & beverage, mining, and environmental remediation. By combining multiple evaporation effects with a heat pump, our system reuses latent heat from vapor, achieving energy savings of up to 60-80% compared to traditional single-effect evaporators. The result is a compact, reliable, and highly automated solution that meets the strictest environmental standards while maximizing return on investment.
Key Features and Technical Specifications:
- Multi-Effect Design: Configurable with 2 to 8 effects, allowing flexible operation to match specific feed characteristics and desired crystal size. Each effect operates at a different temperature and pressure, optimizing heat transfer and minimizing scaling.
- MVR Heat Pump Integration: Uses a mechanical compressor to raise the temperature and pressure of vapor from the last effect, recycling it as heating steam for the first effect. This eliminates the need for external steam boilers in many applications, reducing carbon footprint.
- High Recovery Rate: Achieves >95% water recovery, leaving concentrated brine or crystallized solids that can be further processed or disposed of safely. This supports ZLD initiatives and reduces wastewater discharge volumes.
- Automated Control System: Equipped with PLC and HMI touchscreen, enabling real-time monitoring of temperature, pressure, flow rate, and crystal slurry density. Operators can adjust parameters remotely or via local interface for consistent product quality.
- Corrosion-Resistant Materials: Constructed from high-grade stainless steel (316L, duplex) or titanium, depending on feed chemistry. All wetted parts are designed to withstand aggressive chemicals, high temperatures, and abrasive crystals.
- Energy Efficiency: Typical specific energy consumption is 20-40 kWh per ton of evaporated water, significantly lower than thermal evaporators. The MVR system can be powered by electricity, making it suitable for regions with limited steam infrastructure.
- Compact Footprint: Modular design allows for easy installation in existing facilities. The system can be skid-mounted or containerized for rapid deployment and minimal site preparation.
Technical Parameters (Typical Values):
| Parameter | Value Range | Notes |
|---|---|---|
| Number of Effects | 2 - 8 | Customizable based on feed TDS and required concentration |
| Evaporation Capacity | 1 - 100 T/h | Single unit; multiple units can be paralleled |
| Operating Temperature | 60 - 120 °C | Depends on feed composition and MVR compressor design |
| Power Consumption | 20 - 40 kWh/ton water | Varies with number of effects and compressor efficiency |
| Recovery Rate | ≥95% | Up to 99% for certain applications |
| Crystal Size | 0.1 - 2.0 mm | Adjustable via residence time and seeding |
| Material of Construction | SS316L, Duplex, Titanium | Selected per feed corrosivity |
Benefits for Your Operations:
- Reduced Operating Costs: Lower energy consumption by up to 80% compared to traditional evaporators. Minimal chemical usage due to efficient heat recovery.
- Environmental Compliance: Helps meet stringent discharge regulations and supports sustainable manufacturing practices. Reduces freshwater intake by recycling process water.
- High Purity Crystals: Produces dry, free-flowing crystals suitable for reuse or sale as by-products (e.g., sodium chloride, ammonium sulfate).
- Minimal Maintenance: Designed with easy-access ports, CIP (clean-in-place) capability, and robust compressor components. Remote diagnostics available via IoT integration.
- Scalable Solution: From pilot-scale (1 T/h) to industrial-scale (100 T/h), we provide customized designs to fit your production volume and space constraints.
At Qingdao Conqinphi Environmental Technology Group Co., Ltd., we have delivered over 200 evaporation systems globally since 2015. Our factory is certified under multiple quality and environmental management systems, including ISO9001, ISO14000, and OHSAS18001, ensuring consistent product excellence. With an annual export value of US$10-50 million and a strong presence in markets across North America, Europe, Asia, and Africa, we are trusted by leading chemical, pharmaceutical, and food companies worldwide. Our team of 201-300 skilled professionals provides comprehensive after-sales support, including installation supervision, commissioning, training, and spare parts supply from our Qingdao port.
Frequently Asked Questions:
-
What is the typical payback period for this crystallizer?
Depending on energy costs and water savings, payback is usually 1-3 years. We can provide a customized ROI analysis based on your feed composition and local utility rates. -
Can this system handle highly corrosive feed streams?
Yes, we offer materials like duplex stainless steel and titanium, as well as special coatings, to resist corrosion from chlorides, acids, and alkalis. A detailed feed analysis is recommended for material selection. -
What is the maximum TDS (Total Dissolved Solids) the system can handle?
Our crystallizers can process feed with TDS up to 300,000 ppm (saturation). For higher concentrations, we can integrate pre-concentration or forced circulation designs. -
Do you provide turnkey installation?
Yes, we offer complete project management, from site survey and foundation design to piping, electrical integration, and startup. Our team can also train your operators on-site. -
How often does the MVR compressor require maintenance?
Compressor maintenance intervals are typically 8,000-12,000 operating hours, depending on load and operating conditions. We provide a recommended maintenance schedule and spare parts kits. -
Can the system be used for zero liquid discharge (ZLD) applications?
Absolutely. This crystallizer is a core component of many ZLD systems, concentrating brine to dry solids and producing high-quality distillate for reuse. -
What certifications do your products have?
Our manufacturing facility holds ISO9001, ISO14000, OHSAS18001, and other certifications. Specific product certifications (e.g., CE, ATEX) can be provided upon request for certain markets. -
What is the warranty period?
Standard warranty is 12 months from commissioning or 18 months from shipment, whichever comes first. Extended warranties are available for an additional fee.
Contact us today to discuss your specific application and receive a tailored proposal. Our engineers are ready to help you achieve higher recovery rates, lower energy costs, and sustainable operations with our High Recovery Multi-Effect Evaporation Crystallizer with MVR Heat Pump.
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