The salt collection chamber in the lower part of the evaporation and crystallization chamber of the vacuum concentration equipment

The salt collection chamber in the lower part of the evaporation and crystallization chamber of the vacuum concentration equipment

The one-effect, two-effect, and three-effect forced circulation evaporators are connected through a balance pipe. Under the action of negative pressure, the high-salt wastewater flows from the first effect to the second effect and the third effect in turn. The concentration of salt is getting higher and higher. When the salt in the wastewater exceeds the saturated state, the salt in the water will be continuously precipitated and enter the salt collecting chamber at the lower part of the evaporation and crystallization chamber.

In addition, it is also essential for equipment operators to understand the normal operating conditions and use methods of the three-effect evaporator, and can repair them in time when the equipment fails.

Vacuum Concentration Equipment Crystallization Evaporator Equipped with Circulating Pump

In response to the treatment of high-salt wastewater, some experts said that the high-salt wastewater will first enter the one-effect forced circulation crystallization evaporator. The crystallization evaporator is equipped with a circulating pump, and the wastewater is pumped into the evaporation heat exchange chamber. The liquefaction of the external steam generates latent heat of vaporization to heat the wastewater. However, due to the high pressure in the evaporative heat exchange chamber, the wastewater is heated to superheat at a pressure higher than the normal liquid boiling point in the evaporative heat exchange chamber.

After the heated liquid enters the crystallization evaporation chamber, the pressure of the waste water drops rapidly, causing part of the waste water to flash, or boil rapidly. The steam after the waste water evaporates enters the two-effect forced circulation evaporator as power steam to heat the two-effect evaporator, and the unevaporated waste water and salt are temporarily stored in the crystallization evaporation chamber.

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