Marine sand desalting device and desalting method thereof

Abstract

The invention relates to a marine sand desalting device and a desalting method thereof. The marine sand desalting device comprises a desalting tank with an opening above and a baffle horizontally embedded in the desalting tank, the baffle is closely matched with the inner wall of the desalting tank, a water draining passage is formed between the baffle and the inner undersurface of the desalting tank, a water draining port is formed in the bottom of the desalting tank and communicated with the water draining passage, a water draining pipe sleeves at the water draining port in a matched manner, and a second electromagnetic valve is arranged on the water draining pipe; a plurality of water outgoing holes are uniformly distributed in the baffle, a plurality of water-permeable films are arranged below the baffle from the top to the bottom, a fresh water input pipe is arranged above the desalting tank, a first electromagnetic valve is arranged on the fresh water input pipe, a liquid level sensor is arranged on the desalting tank, and the liquid level sensor, the first electromagnetic valve and the second electromagnetic valve are electrically connected with a control unit. The marine sand desalting device and the desalting method have the advantages that marine sand is ensured to be completely soaked in fresh water by intelligently controlling input of the fresh water, and liquid level of the fresh water is enabled to be higher than the surface of the marine sand for desalting, so that desalting effect and desalting efficiency of the marine sand are improved.

Description

technical field [0001] The invention relates to the field of sea sand desalination, in particular to a sea sand desalination device and a desalination method thereof. Background technique [0002] Sea sand, as the name implies, is the sand in the sea. As the second largest marine mineral after oil and natural gas, sea sand has many uses, one of the most important uses is as a raw material for engineering construction, because the salt in sea sand contains chlorine The ions will corrode the steel bars and bring safety hazards to the project. JGJ206-2010 "Technical Application Specifications for Sea Sand Concrete" stipulates that sea sand used for preparing concrete should be desalinated. In my country's existing standards, the index range of chloride ion content is between 0.01% and 0.06%. [0003] The existing sea sand desalination treatment methods at home and abroad include: natural placement rain method, fresh water washing (spraying) method, fresh water elutriation meth...

AI Technical Summary

Problems solved by technology

At present, my country's sea sand desalination treatment technology and its equipment technology are generally in a disordered state. The chloride ion content of desalinated sea sand is unstable, and the chloride ion content of sea sand processed by different production lines varies greatly, resulting in a serious waste of fresh water resources.

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