We adopt the "pre-concentration + final concentration" process. After the flow of the 50% raw caustic soda solution is stabilized through the control valve and flowmeter, it is transported to the pre-concentrator, where the concentration is increased to 61%. Then, the concentrated caustic soda solution is pressurized by the concentrated caustic soda pump and stabilized through the control valve and flowmeter before entering the final concentrator, where the concentration is further increased to 97.5%. The molten caustic soda with a concentration of 97.5% exiting the final concentrator enters the flash tank through differential pressure. After flash evaporation, the concentration reaches 99%. It then flows into two caustic soda flake machines through the caustic soda solution distributor, where it is processed into caustic soda flakes. These flakes are then weighed, packaged, stacked, and stored as 99% caustic soda flakes.
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High efficiency: The countercurrent evaporation method improves evaporation efficiency and reduces energy consumption.
High level of automation: The application of the DCS system realizes real-time monitoring and automatic adjustment of process parameters, reducing manual intervention and improving production efficiency and product quality.
High safety: The DCS system has comprehensive safety protection functions, which can promptly detect and handle abnormal situations, ensuring production safety
Molten salt furnaces: They are used to produce solid caustic soda with fuels such as natural gas, hydrogen, coal gas, and coal, meeting the requirements of users. They have the advantages of stable operation, easy control, high thermal efficiency, sufficient waste heat recovery, and a wide range of fuel options.
Environmentally friendly: Dust extraction fans are used to absorb and wash the dust from the caustic soda flakes, reducing the environmental pollution caused by caustic soda dust.
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