A kind of recycling method of water glass old sand

Abstract

The invention provides a method for recycling used water glass sand, the steps are as follows: first, put the used water glass old sand into a funnel-shaped container, and a filter and a valve are arranged at the funnel mouth at the bottom of the container ; After vibrating the water glass sand in the container, add water to the container so that the water submerges the upper surface of the sand. After soaking for 2-4 hours, open the valve at the bottom of the container to slowly discharge the water; finally, drain the water in the container. The glass sand can be reused after releasing and drying. The recycling method of the old water glass sand of the present invention adopts the soaking and percolation method, the removal rate of the residue is as high as more than 95%, the treatment effect is good, and the regenerated sand meets the requirements of recycling; the regeneration treatment of the old water glass sand The method uses less water, so the treatment of waste water is much simpler and easier, and the water glass sand can be effectively reused, saving resources and reducing costs.

Description

technical field [0001] The invention relates to a method for recovering and reusing used water glass sand. Background technique [0002] At present, there are mainly two types of regeneration treatment methods for used water glass sand: dry type and wet type. The essence is to remove the residues on the surface of the used water glass sand. 2 O ingredients. Dry regeneration is the use of air or mechanical methods to accelerate the old sand to a certain speed, relying on the collision and friction between the old sand and metal components or between sand and sand to regenerate the old sand, and remove the residue on the surface of the old sand by dry method The rate is only 5%-15%. Wet regeneration uses water dissolution, scrubbing and mechanical stirring to remove 70%-80% of the residues on the surface of old sand, but the water consumption is large, the treatment system is huge and complex, and the cost is high, and the residues on the surface of old sand The recycling r...

AI Technical Summary

Problems solved by technology

Wet regeneration uses water dissolution, scrubbing and mechanical stirring to remove 70%-80% of the residues on the surface of old sand, but the water consumption is large, the treatment system is huge and complex, and the cost is high, and the residues on the surface of old sand The proportion of reuse of recycled sand is still limited, and the treatment of wastewater is also difficult

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