Glass melting furnace and glass melting method

Abstract

The invention discloses a glass melting furnace and a glass melting method. The glass melting furnace comprises a first stage melting tank and a second stage melting tank that are disposed in order. The glass melting method includes: heating the glass raw material to 700-800DEG C to decompose the carbonate in the glass raw material so as to generate a transition product; and heating the transition product to a temperature above 1200DEG C, and melting, clarifying and homogenizing the transition product. By adopting the technical scheme, the glass melting furnace and the glass melting method provided by the invention can use low-heat value fuel in the glass preparation process, reduce the overall energy consumption of the melting furnace, and improve the product quality.

Description

technical field [0001] The invention relates to the technical field of glass production technology and equipment, in particular to a step-by-step melting glass melting furnace and a glass melting method. Background technique [0002] my country has become the world's largest producer of flat glass. So far, there are 316 float glass production lines in the country, with a total annual production capacity of more than 1.2 billion weight boxes and a total annual flat glass output of 791 million weight boxes. A considerable number of glass products have entered the international market. Flat glass and other processed glass have become an important and indispensable material for the development of my country's national economy and the improvement of people's living standards. [0003] The glass industry has the characteristics of high energy consumption, large resource consumption, and a certain degree of pollution. The energy saving and environmental protection of glass melting...

AI Technical Summary

Problems solved by technology

[0005] The fuels used in the prior art are mainly high-quality, high-calorific-value high-quality fuels, and low-calorific-value fuels, such as low-quality coal powder, cannot be used. The reason is that the existing glass furnace is forced to melt the glass batch material into the glass furnace at high temperature. Inferior fuels have low calorific value and low combustion temperature, which cannot meet the requirements of glass furnace combustion applications

However, my country is a large coal-producing country, and the waste of inferior fuels is large, which is not conducive to the comprehensive utilization of fuels. The stacking of inferior fuels is also a major source of pollution to the environment.

However, the existing energy-saving and emission-reduction technologies used in glass melting furnaces have already reduced the energy consumption of the melting furnace to the maximum, and further exploration of energy-saving potential is very limited.

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