Shijiazhuang Zhongzheng Technology Co., Ltd.
View Detail Information
Explore similar products
Sodium Sulfate MVR Evaporation Crystallization High-Efficiency ZLD and Salt
Crude Sodium Chloride Crystallization Unit Principles Technology and Industrial
Evaporative Crystallizer in Food and Chemical Industry Principles , Technology
What is a Skid-Mounted Evaporator? Principles, Modular Design, and Industrial
Product Specification
| High Light | Advanced Technology Sodium Sulphate MVR Plant ，Industrial Sodium Sulphate MVR Plant | ||
In industrial wastewater management, chemical manufacturing, textile processing, and flue gas desulfurization (FGD) operations, achieving Zero Liquid Discharge (ZLD) while reclaiming valuable chemical byproducts is a primary engineering objective. Sodium sulphate (Na2SO4) is frequently present in high concentrations within these saline effluents, but processing large volumes of wastewater via traditional boilers requires massive thermal energy inputs.
A sodium sulphate MVR plant represents the pinnacle of energy-efficient thermal separation technology. By coupling forced circulation evaporative crystallization with Mechanical Vapor Recompression (MVR), these industrial plants recycle secondary steam energy internally, drastically cutting electrical and thermal overhead while precipitating high-purity anhydrous sodium sulphate crystals.
The operational efficiency of an MVR plant relies on continuous vapor compression and latent heat recovery:
Vapor Generation: Feed brine enters the forced circulation crystallizer, where it is heated and boiled under controlled negative pressure. The vapor evaporated from the solution contains a high volume of latent heat.
Mechanical Compression: Rather than venting this secondary vapor or requiring external boiler steam, an industrial high-efficiency compressor (such as a centrifugal blower or roots compressor) mechanically compresses the vapor to elevate its temperature and pressure.
Internal Heat Recycling: The superheated, compressed vapor is routed back into the shell side of the main tubular heat exchanger, where it condenses and transfers its latent heat directly to the circulating brine, eliminating the need for continuous fresh live steam.
A complete industrial sodium sulphate MVR plant integrates several heavy-duty mechanical and separation stages:
Forced Circulation Pumps: High-capacity axial flow pumps maintain rapid fluid velocity through heat exchanger tubes, preventing localized boiling on surfaces and suppressing crystal scaling.
Crystallizer Body: Engineered with optimized settling and crystal growth zones to ensure controlled particle size distribution and high product purity.
Solid-Liquid Separation: Concentrated crystal slurry is continuously discharged into automated industrial centrifuges or rotary vacuum filters to separate the wet salt cake.
Drying and Final Packaging: Dewatered salt crystals pass through a fluid bed dryer to remove residual moisture, producing free-flowing commercial-grade anhydrous sodium sulphate.
| Parameter / Feature | Sodium Sulphate MVR Plant | Traditional Multi-Effect Evaporation (MEE) | Conventional Steam Stripping / Solar Ponds |
|---|---|---|---|
| Primary Energy Source | Electrical Power (compressor & pumps) | External Industrial Steam | Solar Thermal or Basic Heaters |
| Energy Efficiency | Extremely High (recycles latent heat internally) | Moderate to Low (scales with number of effects) | Low thermal efficiency, massive land footprint |
| Operational Control | Fully automated closed-loop continuous flow | Standard automated control valves | Weather-dependent, manual harvesting |
| Product Purity | High-purity anhydrous sodium sulphate crystals | Standard industrial salt solids | Impure crude salt mix |
| Best Suited Application | Continuous industrial ZLD & high-capacity salt recovery | Plants with cheap surplus low-pressure steam | Arid regions with low environmental standards |
Q: What is a sodium sulphate MVR plant?
A: It is an advanced industrial separation facility that uses Mechanical Vapor Recompression (MVR) to concentrate, crystallize, and recover high-purity anhydrous sodium sulphate from high-salinity wastewater while minimizing external energy consumption.
Q: How does MVR technology reduce operating costs in sodium sulphate recovery?
A: MVR captures the secondary vapor generated during evaporation, compresses it using an industrial blower to raise its temperature and pressure, and recycles it as the primary heating medium, eliminating the need for continuous fresh live steam.
Q: How is scale formation prevented on heat transfer surfaces within the MVR crystallizer?
A: Scale formation is mitigated through forced circulation loops that maintain high liquid velocities across the heat exchanger tubes, preventing localized dry-out and crystal settlement.
Q: What happens to the recovered sodium sulphate crystals after crystallization?
A: The crystal slurry is discharged from the bottom of the crystallizer vessel into automated industrial centrifuges for solid-liquid separation, after which the dewatered salt is dried in a fluid bed dryer for commercial use.
Company Details
Business Type:
Manufacturer
Year Established:
2008
Total Annual:
100,000,000-200,000,000
Employee Number:
400~500
Ecer Certification：
Verified Supplier
Shijiazhuang Zhengzhong Technology Co., Ltd (Center Enamel) is a leading high-tech enterprise specializing in the research, development, manufacturing, and sales of a diverse range of equipment. Our core business revolves around providing top-tier solutions, including Glass-Fused-to-Steel (GFS) tank... Shijiazhuang Zhengzhong Technology Co., Ltd (Center Enamel) is a leading high-tech enterprise specializing in the research, development, manufacturing, and sales of a diverse range of equipment. Our core business revolves around providing top-tier solutions, including Glass-Fused-to-Steel (GFS) tank...
Get in touch with us
Leave a Message, we will call you back quickly!