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Product Introduction
Qingdao Conqinphi Environmental Technology Group Co., Ltd., established in 2015 with a factory size of 10,000-30,000 square meters and over 200 employees, presents our advanced 316L Stainless Steel MVR Evaporation and Crystallization System specifically designed for lithium hydroxide production. This system integrates mechanical vapor recompression (MVR) technology with high-grade 316L stainless steel construction, delivering exceptional corrosion resistance and energy efficiency for concentrating and crystallizing lithium hydroxide solutions. Our system is engineered to reduce operational costs by up to 60% compared to traditional multi-effect evaporation, while achieving high-purity crystal products. With annual export values exceeding US$10 million, we serve global markets including North America, Europe, Southeast Asia, and the Middle East, backed by certifications such as ISO9001, ISO14000, OHSAS18001, and others.
Key Features and Technical Specifications
- High-Efficiency MVR Technology: Utilizes a centrifugal compressor to recompress vapor, reducing steam consumption by over 70% compared to conventional methods.
- 316L Stainless Steel Construction: All wetted parts are made of 316L SS, providing superior resistance to chloride stress corrosion cracking and pitting, ideal for alkaline lithium hydroxide environments.
- Precise Crystallization Control: Equipped with advanced DTB (Draft Tube Baffle) or forced circulation crystallizer design, enabling uniform crystal growth and consistent particle size distribution.
- Energy Recovery System: Integrated heat exchangers and preheaters recover waste heat, further enhancing overall thermal efficiency.
- PLC-Based Automation: Fully automated control system with HMI touchscreen, allowing real-time monitoring of temperature, pressure, flow rate, and crystal slurry density, reducing manual intervention.
- Compact Footprint: Modular design saves floor space and simplifies installation, suitable for both new plants and retrofitting existing lines.
- Compliance with Global Standards: Manufactured under ISO9001 quality management system and other certifications, ensuring reliability and safety.
| Parameter | Specification |
| Material of Construction | 316L Stainless Steel |
| Evaporation Capacity | 1 – 100 tons/day (customizable) |
| Operating Temperature | 60°C – 120°C (adjustable) |
| Operating Pressure | -0.08 to 0.3 MPa (gauge) |
| Crystal Size Range | 100 – 600 μm (adjustable) |
| Power Consumption | 20 – 80 kWh per ton of evaporated water |
| Control System | PLC + HMI, remote monitoring available |
Benefits to Your Business
- Lower Operating Costs: The MVR system drastically reduces steam consumption, lowering energy bills and improving profitability.
- Higher Product Purity: Optimized crystallization conditions yield lithium hydroxide monohydrate with purity exceeding 99.5%, meeting battery-grade requirements.
- Reduced Maintenance: 316L SS construction resists corrosion, extending equipment lifespan and minimizing downtime.
- Eco-Friendly: Lower energy usage means reduced carbon footprint, aligning with global sustainability goals.
- Scalable Design: Modular units can be combined to increase capacity as your production grows.
Trust and Reliability
Qingdao Conqinphi Environmental Technology Group Co., Ltd. has been a trusted manufacturer since 2015, with a factory covering 10,000-30,000 square meters and a team of 201-300 skilled professionals. Our annual export value of US$10 million to US$50 million reflects strong global demand and customer satisfaction. We hold multiple certifications including HACCP, ISO9001, ISO14000, OHSAS18001, and others, ensuring rigorous quality control. Our main markets span across North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. We are committed to providing turnkey solutions, from engineering design to commissioning and after-sales support. Choose our MVR evaporation and crystallization system to elevate your lithium hydroxide production to new levels of efficiency and reliability. Contact us today for a customized proposal.
Frequently Asked Questions (FAQ)
Q1: What is the advantage of MVR over traditional evaporation?
A: MVR utilizes mechanical vapor recompression to recycle latent heat, cutting steam consumption by up to 70% and reducing overall energy costs. It is ideal for lithium hydroxide concentration where energy efficiency is critical.
Q2: Can the system handle high-concentration lithium hydroxide feed?
A: Yes, the system is designed to handle feed concentrations up to 25-30% LiOH, and the crystallization section can produce solid monohydrate with high yield.
Q3: What is the typical crystal size distribution?
A: With our DTB crystallizer design, you can achieve a narrow particle size distribution (e.g., 100-300 μm) with minimal fines, reducing the need for downstream classification.
Q4: Is the system suitable for batch or continuous operation?
A: We offer both continuous and batch configurations. Continuous operation is recommended for large-scale production, while batch mode is available for smaller capacities or special requirements.
Q5: How long does the equipment last under corrosive conditions?
A: The use of 316L stainless steel, combined with proper surface passivation, provides excellent resistance to lithium hydroxide corrosion. Typical service life exceeds 15 years with routine maintenance.
Q6: What certifications do you have for this system?
A: Our manufacturing facility is certified under ISO9001, ISO14000, OHSAS18001, and other standards. The system can be designed to meet ASME, PED, or other local codes upon request.
Q7: Can you customize the system for existing plant layouts?
A: Absolutely. Our engineering team can perform site surveys and design the system to fit your existing footprint, including modular skid-mounted options for easy integration.
Q8: What is the delivery time and warranty?
A: Typical delivery time is 12-16 weeks after order confirmation. We offer a standard 12-month warranty and optional extended service contracts.
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