What are the components of MVR three-effect evaporation equipment?
2020-04-21
MVRthree-effect evaporationProcess flow description,The stock solution first and the returning mother liquor enter the preheating system. The preheated material enters the first effect first according to the downstream process. EnterMVRThe material of the first-effect forced circulation heater is circularly heated in the heating chamber through the action of the circulation pump, and then evaporated and separated in the separator, the boiling and evaporating steam rises, and the concentrated liquid stays in the system.
After evaporation, the concentration of the feed liquid in the first-effect heater rises. When the concentration of the feed liquid reaches the design value, it is discharged from the first-effect separator and enters the inlet of the circulating pump of the second-effect heater. The feed liquid absorbs the heat of the steam side in the heating chamber through the action of the circulating pump, and then boils in the forced circulating separator. The secondary steam of boiling evaporation rises, and the concentrated liquid stays at the bottom of the crystallizer under the influence of gravity.
The concentration of feed liquid in the crystallizer rises and crystals are continuously precipitated. When the concentration of feed liquid meets the design requirements, it is discharged from the crystallizer, enters the thickener, and then enters the centrifuge. The obtained crystals are discharged from the system, and the remaining mother liquor is returned to the system.
MVRThree-effect evaporation dilute acid concentrationofMain features：
1.According to the characteristics of the material and the size of the evaporation, it can be designed as a single-effect or multi-effect evaporation unit.
2.The use of a unique design of the crystallizer, can meet the continuous feed, continuous discharge0Process requirements, the forced circulation of the evaporator forms a good fit, and its internal structure enables the effective and rapid separation of crystals and clear liquid.
3.The whole process is evaporation under vacuum condition, the temperature is relatively low, and the evaporation speed is fast. Evaporation energy consumption is low, the evaporation concentration is high, so that the viscosity of the larger liquid easy to flow evaporation, not easy to scale, is currently one of the more advanced evaporation and crystallization of the combination of evaporation equipment.
MVRthree-effect evaporationEquipment composition：The three-effect concentrator is mainly composed of three tube heaters, three evaporation chambers, circulating pipes, condensers, liquid receiving tanks and other ancillary equipment.
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