Resin sand recycling system

Abstract

The invention provides a resin sand recycling system which comprises a sand recycling system and a sand reusing system. The sand recycling system is used for feeding materials to the sand reusing system; the sand reusing system comprises a shell, a screening mechanism for uniformly scattering resin sand, and a spraying mechanism for atomizing and spraying out auxiliaries; the screening mechanism and the spraying mechanism are arranged in the shell; the spraying mechanism is arranged below the screening mechanism; the shell comprises a feeding port and a discharging port; the feeding port is formed over the screening mechanism; and the discharging port is formed below the spraying mechanism. The resin sand recycling system provided by the invention has the beneficial effects that mixed resin sand is scattered evenly through the screening mechanism and leaks to the spraying mechanism, and the spraying mechanism sprays out the auxiliaries in a mist mode to enable the auxiliaries to make full contact with the resin sand leaking from the screening mechanism.

Description

technical field [0001] The invention relates to the technical field of resin sand preparation, in particular to a resin sand recycling and processing system. Background technique [0002] Resin sand refers to molding sand or core sand that uses synthetic resin as a binder for sand particles. After resin sand is used to make a mold or core, through the action of additives, the resin undergoes an irreversible cross-linking reaction and solidifies, thereby giving Casting mold or core with the necessary strength, resin sand is widely used as mold (core) sand in modern foundry production. Resin sand has high strength after hardening, and is especially suitable for machine modeling, which can make complex and thin-walled castings. [0003] The significance of resin sand recycling: 1. Minimize the environmental pollution caused by the removal of waste sand, so that more than 90% of the waste sand can be recycled. 2. Because the surface of the regenerated sand particles is smooth,...

AI Technical Summary

Problems solved by technology

[0004] In the recycling process of resin sand, crush it first, then remove the resin in the resin sand by high temperature, screen to obtain resin sand of suitable size, then add additives for mixing and stirring, and finally compact and solidify the shape. There are many steps. At the same time, insufficient stirring time during mixing and stirring can easily lead to uneven mixing, and the sand mold (sand core) produced has insufficient adhesion, so it is necessary to increase the amount of additives, resulting in an increase in cost

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