Device for preparing salt by evaporating seawater under sun

Abstract

The invention discloses a device for preparing salt by evaporating seawater under the sun. The device comprises a horizontal evaporation pond and a horizontal crystallizing pond, wherein the horizontal height of the bottom surface of the evaporation pond is higher than that of the bottom surface of the crystallizing pond; a ditch is arranged between the evaporation pond and the crystallizing pond, and the evaporation pond and the crystallizing pond are communicated with each other by the ditch; a gate is arranged at the communicating part of the ditch between the evaporation pond and the crystallizing pond; the device for preparing the salt by evaporating the seawater under the sun further comprises a circulating pump; an inlet of the circulating pump is communicated with the ditch, and an outlet of the circulating pump is commutated with the evaporation pond; the bottoms of the evaporation pond and the crystallizing pond are respectively provided with an impermeable layer; the impermeable layer comprises a sand layer and a thin film layer; the sand layer is arranged at the upper part of the thin film layer. The device not only effectively prevents the seawater from leaking towards the underground, but also is beneficial to the evaporation of the water, thus greatly improving the yield of a salt pan; the single yield of the salt pan is increased by about 2 tons per mu.

Description

technical field [0001] The invention relates to the technical field of chemical equipment, in particular to a seawater salt drying device. Background technique [0002] Extracting table salt from seawater is a traditional and ancient method that is still widely practiced today. First introduce seawater into the evaporation pool, and when the water is evaporated to a certain extent by the sun, it is then poured into the crystallization pool and continued to be exposed to the sun, the seawater will become a saturated solution of table salt, and then the salt will gradually precipitate out. This is the obtained crystal. It is our common crude salt, and the remaining liquid is called mother liquor, from which multiple chemical raw materials can be extracted. [0003] However, during the use of traditional sun-dried salt fields, there are mainly the following problems: 1. The bottom of the hydrosphere is mechanically compacted to prevent seepage, and its anti-seepage effect is n...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a seawater drying salt device to effectively solve the problem of poor anti-seepage effect in salt fields

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