Preparation method of environment-friendly type forsterite foundry sand

Abstract

The invention discloses a preparation method of environment-friendly type forsterite foundry sand. The preparation method mainly adopts a forsterite raw material and clinker calcinated and smashed at the high temperature, and the forsterite raw material and clinker are mutually matched to obtain the foundry sand. The foundry sand does not absorb water and is not self-pulverized after repeatedly baked by molten steel at the high temperature, the hardness is high, and the casting effect is good; a product does not contain free-state silicon dioxide powder, so that silicosis occupational disease in the foundry industry can be eliminated fundamentally; the product can be repeatedly recycled, accordingly, the environment pollution is reduced, and the foundry material cost is reduced.

Description

[0001] technical field [0002] The invention belongs to the technical field of casting, and in particular relates to a preparation method of environment-friendly forsterite casting sand. [0003] Background technique [0004] In the foundry industry, the amount of foundry sand used is very large. When using traditional foundry sand, sometimes there will be sand sticking and sand inclusions in the castings. When the mold is baked in a kiln and the box is combined, it will produce light and heat radiation and black soot flying. Cause environmental pollution, CO and CO released during casting 2 It affects the health of operators, and the free silica dust can also cause silicosis occupational diseases. The reuse rate of old sand is low, and a large amount of waste is discarded by enterprises without old sand recycling equipment. Waste sand discharge occupies an area and pollutes the environment seriously. At the same time, it increases the cost of production material consumpt...

AI Technical Summary

Problems solved by technology

[0004] In the foundry industry, the amount of foundry sand used is very large. When using traditional foundry sand, sometimes there will be sand sticking and sand inclusions in the castings. When the mold is baked in a kiln and the box is combined, it will produce light and heat radiation and black soot flying. Cause environmental pollution, CO and CO released during casting 2 Affect the health of operators, and the free silica dust will also cause silicosis occupational diseases

The reuse rate of old sand is low, and a large number of enterprises without old sand recycling equipment are discarded. The waste sand discharge occupies an area and pollutes the environment seriously, and at the same time increases the production material cost of the factory castings.