New choice of volatile glass manufacturing in the

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All electric melting glass furnace: a new choice for the manufacture of volatile glass

glass can be said to be one of the most exposed industrial products in our life at present. From small glass cups to shining glass curtain walls, glass products in glass life can be said to be everywhere. While the demand for glass is booming, the glass technology is also rising day by day. For example, we often hear that the all electric melting glass furnace has the characteristics of high automation and outstanding performance. Next, we will briefly introduce the technology of all electric glass melting furnace

all electric glass furnace - also known as all electric furnace, also known as electric furnace. When people find that high-temperature glass can conduct electricity, electric energy can be used as a heat source to melt glass, that is, use electric furnace to melt glass. The electric melting furnace has gradually started and is expected to be put into operation in early 2018; 15000 tons of battery grade lithium carbonate and 2500 tons of industrial grade lithium carbonate under construction partially replace the flame kiln

the glass tank furnace heated by flame surface has a long history and plays a very important role in the production of glass raw sheets. Although many structural improvements have been made in the long-term use process, there are still some serious shortcomings in the shell of instruments and the pump body of supercharger, such as low thermal efficiency, complex kiln structure, large volume, poor working environment, etc

in the late 1940s, electric melting furnaces were really used for commercial production. From the use effect, the electric melting furnace has outstanding advantages, such as high melting rate, simple structure, high degree of automation and good working environment

its main principle is to use electric energy as the heat source. Generally, silicon carbide or molybdenum disilicide resistance heaters are installed on the side wall of the kiln chamber for indirect resistance radiation heating. Some crucible kilns for melting special glass adopt induction heating, which is heated by eddy current induced in the kiln and in the glass liquid. The tank kiln directly uses the liquid glass in the kiln as the heating resistance. Multiple groups and multilayer electrodes can be arranged at different depths of the liquid glass to heat the liquid glass. The temperature system can be controlled by adjusting the power consumption

when this method is adopted, the temperature of the space above the glass level is very low (called cold furnace top), so the energy is basically consumed for melting glass and heat dissipation of the furnace wall. There is no loss of heat taken away by the flue gas and pollution to the environment when the flue gas is discharged. The heat utilization rate is high, and there is no need to set up a combustion system and waste heat recovery system. The battery kiln can be controlled automatically, with few management personnel and good working conditions, but it consumes a lot of power resources. Suitable for melting refractory 4 Data reproducibility dispersion ≤ 5% glass, volatile glass and dark glass. Large scale electricity "these media have long had tank kilns in foreign countries to produce bottle glass with a capacity of 150t per day

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