Solarization recrystallization salt-manufacturing technology

Abstract

A solarization recrystallization salt-manufacturing technology is characterized by comprising the following steps: (1) utilizing seawater or brine to flush large-particle crude salt, so as to obtain brine with relatively high concentration; (2) sending the high-grade brine subjected to centralized preparation to crystallization ponds; (3) utilizing a mechanical brine-stirring machine to stirring brine and salt; (4) after crystallization is finished in the step (3), centralizing bittern to a salt collection pond and removing superfluous brine; (5) utilizing a salt-slurry pump to transport and stack salt-bittern mixture; (6) returning brine in the step (4) to a brine storage clearing pond for reutilization and crystallization; and (7) performing transportation. Compared with the prior art, the technology has the advantages that seawater or mixed brine is utilized for flushing crude salt, mechanical equipment is not for stirring, and high-grade brine is obtained in a short time; a pipeline system, the mechanical brine-stirring machine, a salt reeling machine, the salt-slurry pump, an excavator and the like are utilized for collecting and stacking salt, the crude-salt output in an unit area is improved, and labor is saved; and the product is pure white and fine, and can be used as a good processing raw material of various edible-salt products.

Description

technical field [0001] The invention relates to a new process in the field of solar salt production, in particular to a process for producing table salt through solar recrystallization by using seawater and natural unsaturated brine, including the process of dissolving large-grain raw salt in concentrated water after seawater desalination. Background technique [0002] The traditional southern sun-dried salt production technology generally uses seawater directly, gradually clarifies and concentrates through various beaches under the action of sunlight and wind, slowly obtains saturated brine, and finally introduces crystallization beaches; under the action of suitable light and wind, through Manually stir the brine and beat the flowers, crystallize and precipitate the sun-dried salt; after the crystallization is completed, the salt is collected by wooden rakes, and the salt is picked up in baskets and manually transferred to the salt stack to drain the brine, and stacked and ...

AI Technical Summary

Problems solved by technology

[0003] In the sun-dried salt production in the north, long-term crystallization is adopted, and the yield of sun-dried raw salt produced is relatively high, but the particles are large, the crystal form is unnatural, the color is poor, the whiteness is less than 40 degrees, and there are many impurities , need to be further processed by powder washing to utilize

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