Method and equipment for strengthening natural evaporation concentration and crystallization

By adding a facade evaporation structure in the salt pool and utilizing natural wind, the high investment, high energy consumption and new pollution problems caused by the narrow ground are solved, and the efficient evaporation effect with low cost and low energy consumption is achieved.

CN119683719APending Publication Date: 2025-03-25LANZHOU TIANDAO LITHIUM TECH DEV CO LTD
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Patent Information

Application Number
CN202311294108.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-09-25
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

Because the small salt bath with a small ground cannot meet the requirements of evaporation, it leads to high investment, high energy consumption and new pollution problems. Large-area salt baths are prone to damage, difficult to maintain, and expensive to maintain.

Method used

The floating or floor-mounted salt bath is built at low cost, and the facade evaporation structure is added to the evaporation process, including hanging evaporation curtains with a reel, setting up evaporation towers, forced blowing air under the water surface, and supplying air to the bottom of the pool, etc., to improve evaporation efficiency.

Benefits of technology

By increasing the evaporation area and using technical means such as natural wind and pressurized spray, the evaporation efficiency is significantly improved, construction and maintenance costs are reduced, and high energy consumption and new pollution are avoided.

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Abstract

Natural evaporation, concentration and crystallization are the most economical and environment-friendly concentration mode which is the highest limit and wants to be adopted; however, due to the fact that the evaporation intensity is limited by natural conditions and changes with seasons, is not expected and cannot be easily improved, the area of the natural evaporation salt drying pond is limited by the land and the investment amount and is not suitable for being expanded at will, and even is not allowed to be expanded, many working condition scenes with good application conditions are forced to be abandoned. Other evaporation and concentration modes, such as reverse osmosis, MVR evaporation and calcination, which are high in investment, high in energy consumption, complex in process and high in operation and maintenance and even generate new pollution are adopted, so that in a scene with better natural evaporation conditions, a seasonal enhanced natural evaporation system is designed, a three-dimensional structure is added deliberately, and a roller shutter type, spraying type and flushing type combined mode is adopted, so that the production efficiency is improved. And peripheral idle waste sunlight and heat energy are adopted for intensifying heating, and the temperature is increased for intensifying natural evaporation. And by matching with a seasonal simple adjusting tank, the problems of insufficient area and insufficient evaporation capacity of the sunning tank can be well solved, and the benefit is obvious.
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