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Particle size control of glass raw materials

The benefits of controlling the particle size of glass raw materials are as below:

1. Reduce the particle size dispersion of various glass raw materials, which can significantly improve the uniformity of glass batch materials.Thereby, the efficiency of glass melting can be improved, the fluctuation of glass composition can be reduced, and finally the yield and product quality of glass products can be improved, and the cost can be reduced.

2. Reduce the fluctuation of active ingredients in raw materials. For example, in sand, the clay composition with high alumina and iron oxide content exists in the sand in the form of fine powder. If the ultrafine powder less than 0.1mm in the sand is reduced, the silica content will increase and the fluctuation will also decrease.

3. Reduce heavy minerals in raw materials. The ultrafine powder in the sand contains a large amount of refractory heavy minerals, such as magnetite, ilmenite, hematite, limonite, chromite, sillimanite, kyanite, rutile, zircon, etc. , these iron oxides, chromium oxides and refractory oxides with strong coloring ability will have a great impact on the color of glass and product quality.