Quick cooling device for sand of lost-foam production line

Abstract

The invention discloses a quick cooling device for sand of a lost-foam production line, and relates to a cooling device. The quick cooling device comprises a cooling water tank, sand cooling metal tubes, a sand inlet hopper and a sand outlet hopper; the tank wall, close to the top end, of the cooling water tank is connected with a water outlet tube which extends into the cooling water tan; the tank wall, close to the bottom end, of the cooling water tank is connected with a water inlet tube which extends into the cooling water tank; the sand inlet hopper is connected with the outer surface of the tank wall at the top end of the cooling water tank; the sand outlet hopper is connected with the outer surface of the tank wall at the bottom end of the cooling water tank; the plurality of sand cooling metal tubes are uniformly arranged in the cooling water tank; the top end of each sand cooling metal tube is connected with the tank wall at the top end of the cooling water tank in a sealing manner; the top end of each sand cooling metal tube passes through the tank wall at the top end, and communicates with an inner cavity of the sand inlet hopper; the bottom end of each sand cooling metal tube is connected with the tank wall at the bottom end of the cooling water tank in the sealing manner; and the bottom end of each sand cooling metal tube passes through the tank wall at the bottom end, and communicates with the inner cavity of the sand outlet hopper. The quick cooling device has the advantages of being small in size, simple in structure, good in cooling effect, low in energy consumption, and the like.

Description

technical field [0001] The invention relates to a cooling device, in particular to a cooling device for sand in a lost foam production line. Background technique [0002] Lost foam casting is a full-type casting in which foam plastic molds are combined with dry sand without binders and vacuum pumping technology. The foam models that are basically the same size and shape as the castings are bonded and combined to form a model cluster. Vibrating molding in dry quartz sand, pouring under negative pressure, vaporizing the model, liquid metal occupying the position of the model, solidifying and cooling to form a new casting method. [0003] The quartz sand in the lost foam casting process needs to be reused, but the quartz sand will become hot during the casting process. After the casting is completed, the quartz sand needs to be cooled so that the cooled quartz sand can be used again in the lost foam casting process. At present, the cooling of quartz sand in the industry usuall...

AI Technical Summary

Problems solved by technology

[0004] There are following defects in adopting the above method to cool the quartz sand: 1, the bubbling cooling bed is not only high in purchase cost, but also high in energy consumption, which increases the production cost of the enterprise; The temperature of the quartz sand is reduced to a reusable temperature, the process is complicated, and the cooling equipment occupies a large amount of production space

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