MEE in Effluent Treatment for Chemical, Pharmaceutical, Textile, Dyeing, Breweries, Automobiles, Milk, Food Industries
Multi-effect Evaporator
Multi-effect evaporation is a widely-used system that utilizes secondary steam many times which is a traditional and reliable evaporation process. It can be combined with different vapor-liquid separators and crystallizers to achieve concentration and crystallization of different materials to meet various processing requirements.
Advantages
- Utilize the secondary steam reasonably, to save more energy and be more economical.
- Multiple process designs, suitable for different materials.
- Less investment compared with MVR evaporation system.
Applications
Food & beverage
Chemical
Pharmaceutical
Pesticide
Printing & dyeing
Metallurgy
Fermentation
Tobacco
What are the of Features and Advantages of the MEE system to be used in for the wastewater treatment plant?
According to the characteristics of the material and the size of the evaporation capacity, it can be designed as a single-effect or multi-effect evaporation unit, with flexible equipment combination and large operating space;
The heat transfer coefficient of the multi-effect evaporation system is relatively high, the heating time of the material is short, and the evaporation temperature is low, which can effectively reduce equipment corrosion.
The multi-effect steaming system makes full use of the latent heat of the secondary steam of the material to minimize heat emission and reduce the consumption of raw steam.
The heat exchange tube of the multi-effect evaporation system is not easy to foul, with high heat transfer efficiency, large operating flexibility, reliable operation and long operating cycle.
Characteristics
Reduction of the use of live steam by using vapour steams from the previous stage as heating medium for the following stage.
Flexible partial load operation is possible.
Suitable for various applications.
Performance Comparison for Different Evaporator
| Item | Single effect evaporator | multi-effect evaporator | TVR evaporator | MVR evaporator |
| Energy consumption | energy consumption is much higher than others, 1ton water will consume 1Ton steam in theory | comparatively energy conservation | Base on traditional multi-effect evaporator, one more effect added, but higher pressure steam driven needed | The most energy saving technology for evaporator, but 10-40kwh power consumption |
| Floor space | Small | large | large | small |
| Energy sources | steam & power, need steam pipe network and boiler | steam & power, need steam pipe network and boiler | steam & power, need steam pipe network and boiler, need high pressure steam. | electricity, don't need pipe network, all the close-loop circulation system |
| Automaticity | Semi automatic | Full automatic operation, continuous evaporation | Full automatic operation, continuous evaporation | Full automatic operation, continuous evaporation |
Working principle
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