The earliest glass manufacturer in the world was the ancient Egyptians. The appearance and use of glass has a history of more than 4000 years in human life. Small glass beads have been unearthed from the remains of Mesopotamia and ancient Egypt 4000 years ago.

1874, Belgium made flat glass for the first time. 1906, the flat glass is made in America. Since then, with the industrialization and scale of glass production, glasses with various uses and properties have come out one after another. In modern times, glass has become an important material in daily life, production and science and technology.

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The function of waste glass

1. glass raw materials: collecting, sorting and treating waste glass as raw materials for glass production has become the main way to recycle waste glass.

Waste glass can be used to produce glass products with low requirements on chemical composition, color and impurities, such as colored bottle glass, glass insulator, hollow glass brick, grooved glass, embossed glass and colored glass balls. The amount of waste glass in these products is generally more than 30wt%, and the amount of waste glass in green bottles and cans can reach more than 80wt%.

2. Raw materials of coating: Waste glass and waste tires are crushed into fine powder and mixed into coating according to a certain proportion, which can replace silicon dioxide and other materials in coating.

3. Raw materials of glass-ceramics: Glass-ceramics have hard texture, high mechanical strength and good chemical and thermal stability. However, at present, the production cost of traditional raw materials commonly used for glass-ceramics is high. Foreign countries have succeeded in producing glass-ceramics by using waste float glass and power plant fly ash instead of traditional glass-ceramics raw materials.

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