Regeneration system of used clay sand

Abstract

The invention discloses a regeneration system of used clay sand. The regeneration system comprises a belt conveyor with a magnetic separation function, a breaker, a bucket elevator, a linear vibration sand sieving machine, a storage device, a centrifugal regenerator and an air separator, wherein a feeding opening of the breaker is connected with the tail end of the belt conveyor, and a discharging opening of the breaker is connected with a feeding opening of the bucket elevator; the linear vibration sand sieving machine is arranged under a discharging opening of the bucket elevator; the storage device is arranged under the linear vibration sand sieving machine; a feeding opening of the centrifugal regenerator is connected with a discharging opening of the storage device; the air separator is arranged under the centrifugal regenerator; the used clay sand system also comprises a vortex type regenerator; the vortex type regenerator is connected with the centrifugal regenerator through a secondary bucket elevator. Through the regeneration system of used clay sand, the clay content in the used sand is greatly reduced; the performance of the used sand is controlled stably; the performance of the molding sand is effectively improved and controlled; the full regeneration of the used clay sand is realized; the environmental pollution is reduced; the resources are saved; the casting quality and the production efficiency are improved; the production cost of castings is reduced.

Description

[0001] technical field [0002] The invention relates to an old sand recycling system in the metal casting industry, in particular to a clay old sand recycling system. [0003] Background technique [0004] my country is a big country in the production of castings, with an annual production of more than 40 million tons of castings. Due to the clay sand production process has the advantages of low raw material cost, easy handling, strong reusability, strong ability to adapt to molding conditions, and convenient storage and transportation. At present, my country 70%-80% of the castings are produced by the wet mold clay sand process, and one ton of old sand is discharged for every ton of castings produced. The discharged old sand not only caused a huge waste of resources, but also caused great pollution to the environment. Therefore, the research on the complete regeneration technology of clay old sand is the best way to reduce the cost of castings, improve the quality of casti...

AI Technical Summary

Problems solved by technology

The discharged old sand not only caused a huge waste of resources, but also caused great pollution to the environment. Therefore, the research on the complete regeneration technology of clay old sand is the best way to reduce the cost of castings, improve the quality of castings, reduce environmental pollution and save resources. an important measure

[0005] At present, the commonly used clay sand regeneration process and equipment in China only remove part of the clay in the old clay sand through regeneration, and the regenerated sand can only be used to supplement the loss of the clay sand system, which is an incomplete regeneration process.

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