New energy-saving technologies for the evaporation of non-thermosensitive inorganic salts

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This post was last edited by swwsdwf on 2009-10-13 at 18:26. In light of the current need to reduce energy consumption and emissions, a new type of energy-saving evaporation technology is presented here for reference in the industry dealing with non-thermosensitive inorganic salts. 1. Principle: Using coal or petroleum coke as an energy source, a boiler combined with multi-effect evaporation is employed； The difference is that the feed liquid is used in place of water to be heated in the furnace (sealing pot); the flue gas from the boiler flows through the tube side, while the feed liquid flows through the shell side. This heating system replaces the first-effect heater. The material inside the shell side of the furnace (sealing pot) is connected to the first-effect evaporation chamber, enabling forced circulation. The vapor generated in the first-effect evaporation chamber is used to heat the second-effect evaporation chamber, and by the same principle, this applies to multi-effect evaporation as well ； The shell side of the furnace (sealing pot) is under negative pressure, with the first-stage evaporation chamber connected to the second-stage heating chamber ； 2. This process is equipped with an automatic replenishment and discharge system for continuous evaporation ； The concentrated material can be discharged directly, while the crystallized material can be discharged from the crystallizer at high concentration ； 3. This technology can be adopted in areas where there is no heat source (no centralized heating, so a boiler must be installed) or where steam prices are high. Given that energy prices vary from region to region, I will not conduct cost calculations here; the energy-saving benefits are obvious.