A V-method molding sand treatment system and method

Abstract

The invention relates to a V-method molding sand processing system and method. With the V-method molding sand processing system, sand subjected to pouring and shakeout by virtue of V-method sand processing is firstly conveyed to a sieving device to be sieved, iron-containing impurities in the sand are sorted out, and then the sand is cooled and is lifted and conveyed to a modeling part, thereby solving the problems that during V-method sand processing with magnetic separation first and then cooling on hot sand subjected to pouring and shakeout, iron-containing impurities in the sand are difficult to clean, and if sand is subjected to cooling first and then magnetic separation, iron-containing impurities in the sand are heavy, a cooling effect of a boiling cooling bed is influenced, and the cooling bed is blocked and cannot be used.

Description

technical field [0001] The present invention relates to the processing of V-method molding sand, and in particular relates to a V-method molding sand processing system and method. Background technique [0002] V-method molding is a vacuum-tight molding. Its basic principle is to fill the special sand box with anhydrous and binder-free dry sand, slightly vibrate and compact it, and rely on the vacuum pump to extract the air in the sand, resulting in a pressure difference between the inside and outside of the mold, making the dry sand tight. Actually, it is a physical molding method to form the required cavity. Because the V method molding does not add any binder to the sand, the sand treatment is relatively simple and convenient. It only needs to remove sundries, magnetic separation, and cool the sand after falling out. , you can save it for later use. [0003] With the increase of people's understanding of V-method molding and the improvement of the mastery of V-method tec...

AI Technical Summary

Problems solved by technology

After falling out, the hot sand is cooled first without magnetic separation. Since the sand contains a large amount of iron-containing impurities, its specific gravity is much larger than that of the sand. At the beginning, it is difficult for the boiling cooler to fully boil. With the accumulation of iron-containing impurities, it will soon It will completely block the ventilation surface, causing the cooler to fail to work, and the sand cannot be cooled

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