All-electric melting energy-saving melting furnace for borosilicate float glass production, use method and product

Abstract

The invention relates to the technical field of all-electric melting furnaces, in particular to an all-electric melting energy-saving melting furnace for borosilicate float glass production, a using method and a product. The all-electric melting energy-saving melting furnace comprises a steel structure framework, the bottom of the steel structure framework is a stand column supporting furnace outer layer steel structure of a steel-concrete structure, and a heat preservation brick layer is arranged on the inner wall of the steel structure framework; the steel structure framework is of a dodecahedron vertical funnel structure, the steel structure framework and the heat preservation brick layer are connected through adjusting bolts, a refractory brick layer is arranged on the inner wall of the heat preservation brick layer, electrode holes are formed in the side wall of the refractory brick layer, and a top cover hanging brick is arranged at the top end of the inner wall of the heat preservation brick layer. The method is convenient to operate and high in operability.

Description

technical field [0001] The invention relates to the technical field of all-electric melting furnaces, in particular to an all-electric melting energy-saving melting furnace for borosilicate float glass production, a use method and a product. Background technique [0002] According to the description in the industry standard "JCT 2451-2018 Borosilicate Flat Glass": Borosilicate flat glass refers to silicate sheet glass containing 7% to 15% boron oxide in its chemical composition. The all-electric melting float process usually mainly uses an electrically heated glass furnace to melt borosilicate glass, and uses the float process to form it. As far as the borosilicate float glass production line is concerned, it can be roughly divided into flame furnace, flame electric booster and full electric melting furnace, while the melting furnace used for the production of borosilicate float glass generally has a small tonnage, and the industry generally believes that the whole There is...

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Problems solved by technology

However, the full electric melting technology also has advantages that cannot be matched by the flame electric boosting technology: First, no matter whether the fuel used in the flame electric boosting technology is oil or natural gas, it is a non-renewable fossil fuel, while the full electric melting technology Electric energy is the core energy of the company, which is a renewable and clean energy, and it has a clean advantage from the beginning of production; secondly, the thermal efficiency of the flame electric boosting technology is low, and there is a large waste of heat energy. Generally, waste heat power generation or waste heat heating is used. Improve the utilization rate, while the full electric melting technology adopts the vertical cold roof process, the heat energy utilization rate is as high as more than 80%, which makes the production more energy-saving; moreover, the flame electric boosting technology will produce high-temperature combustion because the main melting method is combustion Exhaust gas is difficult to deal with and has a greater impact on the environment. At the same time, it increases the burning loss of boron content in the composition, while the full electrofusion technology adopts electric heating and vertical cold roof technology design, there is no high-temperature combustion exhaust gas, and the composition is greatly reduced. Loss of medium boron content, making production more environmentally friendly

[0003] In the field of electric melting furnaces, how to solve the shackles of production capacity of all-electric melting borosilicate float glass, solve the problem of high-temperature liquid flow in all-electric melting furnaces, and solve the problems of melting and clarifying difficulties in all-electric melting furnaces has become an urgent need to be solved question

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