Whole-course recycling sea sand chlorine removal and impurity removal system

Abstract

The invention discloses a whole-course recycling sea sand impurity removal and chlorine removal system which comprises a screening unit, a cleaning and showering unit, an impurity separation unit, an ultrasonic generator, an alkaline potential water generator, a low-pressure ozone generation array pile, a linear vibration conveying and water screening unit, a flocculation basin, a filter press, a water collection tank, a reverse osmosis treatment tank, a sun-drying evaporator and a strong brine collection unit, and the system further comprises a caulking brick production unit and a mixing water collection unit. The system has good chlorine removal and impurity removal effects on sea sand, the chlorine content of the treated sea sand can be reduced to 0.0015%, chloride ion slow release is permanently avoided, and the sea sand reaches and exceeds the fresh water sand standard; and waste liquid and solid waste generated in the operation process of the system can be recycled, no pollution is caused to the environment, the sea sand treatment capacity can reach 300-600 tons per hour, and the economic benefit is remarkable.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a chlorine and impurity removal system for whole-process resource-based sea sand. Background technique [0002] In order to protect the environment of inland river sand and placer mines, all parts of our country have implemented a comprehensive ban on river sand mining. In addition, the ore sand has also been purified to extend its industrial chain. In this situation, construction sand resources, especially in coastal areas, are becoming increasingly tense. [0003] On the other hand, there are abundant sea sand mines along the coast of our country. Sea sand will produce a large amount of chloride on its surface after being soaked in seawater over a long period of time. Therefore, sea sand contains a large amount of chloride ions. Erosion. In addition, sea sand also contains impurities such as silt, shells, mica, and light substances, which also reduce the bonding force betwee...

AI Technical Summary

Problems solved by technology

[0007] 2. The higher concentration of chlorinated salt water discharged from sea sand cleaning is directly discharged into the sea or directly transported to the sun-dried salt field for crystallization and sun-dried salt, or transported to the salt-water farm for supplementary water. sea ​​sand treatment plant, the feasibility of this method is low, the transportation cost is high, and the cost of sea sand treatment is increased

This sludge is not treated, it is easy to cause serious secondary pollution and damage to the ecological environment, polluting soil, water and even the food chain

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