Substrate glass forming equipment and heating device of drainage area

Abstract

The invention discloses a heating device of a drainage area of substrate glass forming equipment. The device includes a partition plate, a thermal insulation layer and a plurality of heating rods; oneend of the partition plate is connected to a steel structure of the substrate glass forming equipment, the other end is located in the substrate glass forming equipment and is provided with an opening through which substrate glass can pass, and the opening is located above a gap between two edge roll wheels of the substrate glass forming equipment; the thermal insulation layer is located betweenthe steel structure and the drainage area of the substrate glass forming equipment, and is connected to the inner surface of the steel structure; the thermal insulation layer is located above the partition plate; and one end of each heating rod passes through sequentially through holes arranged in the steel structure and the thermal insulation layer to be located in the drainage area of the substrate glass forming equipment, and the other end is located at the outer side of the steel structure. According to the device, the heating rods and the thermal insulation layer are used to compensate for temperature field loss caused by cooling of an edge drawing machine, so that the impact on a temperature field in the drainage area is reduced, the purpose of stabilizing the temperature field in the drainage area is achieved, an occurrence of glass crystallization is avoided, the service life of the equipment is improved, and the stable production is realized.

Description

technical field [0001] The invention belongs to the field of plate glass manufacturing equipment, and relates to a substrate glass forming device and a heating device for a drainage area thereof. Background technique [0002] According to Taman's theory, the process of glass crystallization is the formation of crystal nuclei and the growth of crystals. The main factors for crystallization are the formation rate of crystal nuclei, the growth rate of crystals and the viscosity of the melt. When the temperature is higher than the liquid phase When the temperature is lower than the line temperature, since no crystal nuclei are formed, the glass melt will not devitrify. [0003] In the production of substrate glass by the overflow method, when the molten glass enters the forming area through the overflow device, the flat glass in the molten state will shrink inward, and it needs to be clamped and cooled rapidly by the edge pulling machine to suppress the glass plate width. conti...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the disadvantages of glass devitrification often caused by glass devitrification in the production of substrate glass by overflow method in the above-mentioned prior art, and to provide a substrate glass forming device and Heating device in its drainage area

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