In recent years, with the rapid development of new energy industries (such as lithium batteries, photovoltaics, energy storage, etc.), MVR evaporation and crystallization equipment has significantly increased its application in lithium salt extraction, wastewater treatment and other links due to its high efficiency and energy saving characteristics. The following are the latest developments and trends in this field:
1. Lithium battery industry: key equipment for lithium resource extraction
Upgrade of lithium extraction technology in salt lakes
With the surge in global demand for lithium resources, the application of MVR evaporation and crystallization equipment in lithium extraction from salt lake brine has become a hot spot. For example:
- Qinghai Salt Lake Project: In 2023, many companies will use MVR technology to concentrate brine, improve the crystallization efficiency of lithium carbonate/lithium hydroxide, and reduce energy consumption by 30%~50% compared with traditional evaporation.
- South American Salt Lake: Chinese equipment manufacturers' MVR systems are exported to Chile and Argentina, and are suitable for high magnesium-lithium ratio brine treatment.
Waste battery recycling
During the recycling process of retired lithium batteries, MVR is used to concentrate lithium-rich solutions to achieve crystallization recovery of lithium sulfate and lithium carbonate.
2. Photovoltaic industry: Zero discharge (ZLD) of high-salt wastewater
Polysilicon production wastewater treatment
The manufacturing of photovoltaic silicon materials produces a large amount of wastewater containing NaCl and Na₂SO₄. MVR combined with crystallization technology can achieve salt recovery, and some crystallized salts meet industrial standards.
3. Policy and technology drive
Energy conservation and carbon reduction demand
China's "dual carbon" goal promotes the transformation of high-energy-consuming industries. The energy efficiency advantage of MVR has been supported by policies, and some projects can apply for green credit or subsidies.
Technology integration and innovation
- oAI optimization control: The MVR system is equipped with AI algorithms to adjust the compressor speed and feed volume in real time to improve stability.
- o Corrosion-resistant materials: In view of the high corrosion of lithium battery wastewater, Hastelloy and titanium materials are used to extend the life of equipment.
4. Market dynamics
Intensified competition among equipment manufacturers
Domestic companies and international brands compete in the new energy market. In 2024, the domestic MVR market size in the new energy field is expected to exceed 2 billion yuan.
Accelerated overseas layout
Chinese MVR manufacturers export equipment in Southeast Asia and Africa to support the new energy industry chain.
