Glass fiber tank furnace structure and glass smelting method

Abstract

The invention discloses a glass fiber tank furnace structure and a glass smelting method. The glass fiber tank furnace structure comprises a smelting part and a passage. The smelting part comprises a feeding tank for feeding a glass raw material, and a smelting pool for receiving the supplied materials and forming a glass liquid. A glass liquid separation device of the smelting pool and the passage is a throat or a baffle brick structure. The upper part of the smelting pool is provided with a crown, two side breast walls, a front wall, a back wall and a smoke flue. The smelting pool is divided into a zone A as a raw material zone, a zone B as a foam zone and a zone C as a clarification zone C along a glass melt flowing direction. The smelting pool is provided with at least one combustor, the combustor is installed on the crown or the breast walls, the combustor sprays flame to glass batch and the sprayed flame forms an included angle of 0-80 degrees with the two side breast walls and forms an included angle of 0 degree with the front wall or the back wall. The glass smelting method adopting the glass fiber tank furnace structure comprises that above the smelting pool of the glass fiber tank furnace structure, the at least one combustor is arranged on the crown or the breast walls; a gaseous oxidant and a gaseous, liquid or solid fuel fluid are supplied to the combustor; and the combustor sprays flame to the glass batch. The glass fiber tank furnace structure has the advantage of high heat transfer efficiency, small corrosion on a refractory material, long tank furnace service life, and energy saving.

Description

technical field [0001] The invention relates to a glass fiber tank kiln structure and a glass melting method. Background technique [0002] At present, the general glass fiber pool kiln structure includes feeder, melting part, flue, passage, burner and electrode set on the kiln. The burner is set on the breast wall on both sides of the melting part, and the burner flame is parallel to the glass liquid surface. Auxiliary heating electrodes are arranged on the bottom of the melting section. [0003] The melting of glass is to heat the glass batch material entering the kiln to a high temperature through a burner, so that it forms a uniform glass liquid with bubbles, streaks and stones controlled within a certain range, which meets the molding requirements. At the same time, after the electrodes arranged at the bottom of the pool are energized, the current passes through the molten glass to generate heat energy to auxiliary heat the molten glass at the bottom of the pool, and ...

AI Technical Summary

Problems solved by technology

[0004] Background Art The burner of the glass fiber pool kiln structure is installed on the breast walls on both sides of the melting part, and the flame of the burner is parallel to the glass batch material or glass liquid surface in the melting part, and mainly relies on radiation heat transfer to heat the glass raw material or glass liquid. Low heat utilization rate: the radiation heat transfer efficiency is related to the distance between the flame and the glass raw material or glass liquid surface, the smaller the distance, the higher the heat transfer efficiency

Due to the limitation of the furnace structure, the installation of the burner cannot be endlessly close to the glass raw material or the glass liquid surface, so there is always a certain distance between the flame and the glass raw material or the glass liquid surface, causing the flame to radiate to the glass raw material or glass The heat on the liquid surface is not used optimally, resulting in high energy consumption

Furthermore, the flame end of the horizontally installed burner floats upwards, causing great damage to the refractory material of the dome, and even softening the refractory material of the dome under high temperature load, causing the dome to sink, and what is more, to cause the dome to collapse collapse

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