4T/H Single MVR Evaporator Crystallization System for Battery-Grade Lithium Hydroxide Production
Price:
USD180,000-USD650,000
MOQ:
1set
Delivery Time:
90days
Brand:
Hanpu
Product Description
Lithium Hydroxide 4T/H Single MVR Evaporator Crystallization System
Engineered for battery-grade LiOH·H₂O production, this single-effect MVR system features forced-circulation crystallization and continuous solids handling for optimal efficiency.
System Overview
Hanpu delivers complete EPC turnkey MVR evaporator crystallization systems for lithium hydroxide (LiOH·H₂O). This single-effect MVR line is designed for approximately 4 t/h evaporation capacity, concentrating lithium liquor and producing stable, low-impurity crystals suitable for battery applications.
Production Challenges Solved
Our MVR-based solution addresses high steam consumption, chloride-induced corrosion, scaling/fouling at high LiOH concentrations, condensate quality issues, and unstable crystallization kinetics through advanced engineering and materials selection.
Key Advantages
Chemistry-Specific Design
Low Specific Energy (MVR)
Battery-Grade Consistency
Corrosion-Resistant Metallurgy
System Components
- Complete process package with heat & material balance analysis
- Single-effect MVR evaporator for ~4 t/h evaporation duty
- Forced-circulation crystallizer with seed control
- Pusher centrifuge for continuous discharge and crystal washing
- Condensate stripping/polishing for reuse
- PLC/SCADA automation system
MVR Technology Operation
The core principle involves reusing vapor as the heating medium. A mechanical compressor elevates vapor temperature, enabling it to condense and transfer latent heat to boil additional liquor, creating an energy-efficient closed-loop system.
Operation Process:
- Evaporation: Lithium liquor is heated, converting water to vapor
- Compression: Mechanical compressor increases vapor pressure and temperature
- Condensation & Heating: Hot compressed vapor condenses, supplying latent heat
- Recycling: Condensate collected for polishing and reuse
- Control: VFD-driven compressor with advanced process management
Performance Comparison
| Item | Single Effect Evaporator | Multi-Effect Evaporator | TVR Evaporator | MVR Evaporator |
|---|---|---|---|---|
| Energy Consumption | Highest energy consumption (1 ton steam per ton water) | Comparatively energy efficient | Based on multi-effect with higher pressure steam | Most energy saving (10-40 kWh power consumption) |
| Floor Space | Small | Large | Large | Small |
| Energy Sources | Steam & power with boiler network | Steam & power with boiler network | Steam & power with high pressure steam | Electricity only, closed-loop circulation |
| Automation | Semi-automatic | Full automatic operation | Full automatic operation | Full automatic operation |
Typical Process Flow
Feed clarification/filtration → Preheating → Single MVR evaporation → Forced-circulation crystallization → Pusher centrifuge discharge → Crystal washing → Drying/packaging → Mother-liquor recycle → Condensate polishing
Application Scope
Suitable for lithium hydroxide production from brine or hard-rock routes, pre-concentration upstream of crystallization, debottlenecking existing multi-effect lines, and materials/corrosion upgrades.
Frequently Asked Questions
Q1: Does 4T/H refer to evaporation rate or crystal output?
This refers to evaporation duty under defined conditions. Net crystal output depends on feed composition, solids target, and crystallizer settings.
Q2: What metallurgy do you recommend for chloride-rich liquors?
We select SS316L, Duplex 2205, or Titanium based on chloride levels, temperature, and operating conditions.
Q3: How do you control scaling and fouling?
Through proper velocity management, temperature optimization, surface selection, and CIP/online washing with seed and residence control.
Q4: Can this MVR retrofit an existing effect train?
Yes. The single MVR stage can debottleneck existing effects or operate stand-alone ahead of crystallization.
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Get in Touch
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Company
Jiangsu Hanpu Mechanical Technology Co., Ltd
Location
Junmin Road, Huangqiao Industrial Park, Taixing, Jiangsu, China (Mainland)
Contact Person
Jim(General Director)