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MVR Evaporation and Crystallization Unit

MVR Evaporation Crystallization Unit

By recovering latent heat from secondary vapor, this system enables closed-loop energy recycling. Compared to traditional multi-effect evaporation, it achieves over 50% energy savings and can operate without external live steam supply, making it a core technology for zero-liquid-discharge (ZLD) of high-salinity wastewater and resource recovery.

Applications:

Coal Chemical Industry – High-salinity wastewater treatment and resource recovery.

Lithium Battery & New Energy – Evaporation concentration and crystallization of lithium sulfate / lithium hydroxide in cathode material production and lithium-ion battery recycling.

Zero-Liquid-Discharge of High-Salinity Wastewater – Treatment of high-salinity effluents from chemical, textile, pharmaceutical, and electroplating industries, enabling clean water reuse and crystallized salt valorization.

Nonferrous Metallurgy – Treatment of raffinate, high-salt mother liquor, and waste acid, as well as evaporative salt splitting.

Biochemical / Food Industry – Low-temperature evaporation crystallization of heat-sensitive materials such as sodium gluconate and amino acids.


National Service Hotline：400-611-6861
Product Introduction

MVR Technology Principle

In MVR technology, the secondary vapor generated during evaporation is compressed by a compressor to raise its temperature and pressure, and then returned to the evaporator as the heating source. The compressor only needs to supply the temperature rise power required for the boiling point elevation of the material (typically 12–20°C), yet it can drive an evaporation capacity several times greater—equivalent to the energy-saving performance of a 10- to 15-effect evaporator.


Technical Advantage
Ultimate Energy Efficiency
The electricity consumption for ton water evaporation is 25-40 kWh, and the steam consumption is ≤ 150 kg/ton water, which saves more than 50% energy compared to three effect evaporation.
No waste heat emissions
The secondary steam is fully recovered and utilized, without the need for circulating cooling water, reducing the load on the cooling tower.
low-temperature evaporation
Evaporation temperature of 40-80 ℃, suitable for heat sensitive materials, not easily denatured.
High degree of automation
PLC fully automatic control, integrated remote monitoring and interlocking protection.
Friendship Link
Huapu Environmental Protection Huapu Water Treatment Equipment