Ultrawhite calendering glass kiln

Abstract

The invention provides an ultrawhite calendering glass kiln. The kiln is characterized in that: the kiln comprises a melting furnace, a main channel, a lateral channel, and a plurality of branch channels, which are sequentially communicated; and the main channel is a cylinder channel which has a round/quadrate/rectangular/trumpet-like shape, and each corner of each channel is provided with a transition surface. According to the invention, passage sections of the main channel are improved, and simultaneously the corners of all channels are provided with the transition surfaces, so a function of one kiln corresponds to multiple lines is realized, rapid changes of the velocity and the flow of a glass melt caused by a sudden change of a channel area while the glass melt enters another channel when going through the main channel are retarded or reduced, and long-time eddy and scour of the glass melt on the corner can be avoided, thereby a lateral temperature difference generated in a process that the glass melt flows from the outlet of the melting furnace to overflow ports of the branch channels can be reduced or avoided, and the production quality and the quality stability are improved.

Description

technical field [0001] The invention relates to the technical field of ultra-clear rolled glass manufacturing, and more specifically relates to an ultra-clear rolled glass kiln. Background technique [0002] Ultra-clear rolled glass is a rolled glass with low iron content to achieve high transmittance. It is a high-quality, multi-functional new type of high-end glass with a light transmittance of over 91.5%. It is crystal clear, High-end and elegant features are mainly used in the interior and exterior decoration of high-end buildings, solar cell components, high-end gardening buildings, high-end glass furniture products and other industries. Ultra-clear rolled glass has all the processability of high-quality float glass at the same time, with superior physical, mechanical and optical properties, and can be processed in various deep processing like other high-quality float glass. The unparalleled superior quality and product performance make ultra-clear glass have broad app...

AI Technical Summary

Problems solved by technology

Although this structure can use one glass melting furnace to drive multiple production lines to produce simultaneously and improve the melting capacity of the glass melting furnace, but due to the long distance from the melting furnace to the overflow port, the neck is located at the outlet end of the furnace. And it is a narrow and straight channel with a cross-sectional area much smaller than the furnace outlet. The glass melt flowing through it will cause a huge change in speed and flow due to the sudden narrowing of the channel area, and will produce a Eddy flow, because the glass liquid has a certain viscosity, which will lead to the change of the flow rate and temperature of the glass melt entering the branch channel, which will bring about the change of the flow rate and temperature of the glass liquid at the overflow port. At the same time, the melting furnace to the overflow port With a long distance, the molten glass has to travel long distances to reach the overflow port, which also leads to a lateral temperature difference at the overflow port. Due to the very high processing requirements for ultra-clear glass, this temperature difference will directly affect the glass liquid. Subsequent calendering processing and product quality

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