Float glass runner

Abstract

The invention discloses a float glass runner which comprises an inlet section, a regulating section, a homogenizing section and an outlet section, wherein the inlet section, the regulating section, the homogenizing section and the outlet section are sequentially connected; each section is composed of a bottom, a side wall and a crown; separation bricks for facilitating independent temperature control and avoiding mutual interference are arranged between every two adjacent sections; a safety flashboard is arranged in the regulating section; a flow regulating flashboard is arranged in the outlet section; the inlet section, the regulating section, the homogenizing section and the outlet section are respectively provided with an independent heating and cooling device; the cross section of the bottom of the regulating section is an arched bottom surface which is raised in the middle and is gradually lowered towards the two sides; and a crown brick of each of the inlet section, the regulating section, the homogenizing section and the outlet section is provided with 1-2 vent holes. The invention can independently control the glass metal temperature of each section of the runner and avoid mutual interference, effectively enhances the glass metal temperature control accuracy, ensures the temperature uniformity of the glass metal on the cross section of the runner and reduces the generation of secondary glass defects.

Description

[0001] technical field [0002] The invention relates to the technical field of glass manufacturing, in particular to a flow channel for float glass. Background technique [0003] In the production process of float glass, the function of the flow channel is to stably supply the melted and clarified molten glass to the forming equipment (tin bath). Secondary glass defects are allowed, especially when the float method is used to produce ultra-thin glass substrates (thickness 0.3-1.0mm) for flat panel displays. Otherwise, it is impossible to produce high-quality glass substrates for flat panel displays. [0004] With the emergence of multiple lines in one kiln, the number of flow channels for float glass increases, such as figure 2 As shown, the length of the multi-line runner 2 in one kiln is correspondingly longer, and it is difficult to produce high-quality float glass substrates if the traditional runner is adopted. exist figure 1 In the traditional one-kiln-one-line fl...

AI Technical Summary

Problems solved by technology

Chinese application number 201120302053.0 discloses a "float glass channel suction sweeping device". This patent uses an exhaust fan to periodically sweep the vicinity of the cover brick and the flow adjustment gate. However, in the process of suction sweeping, once the condensate is affected by the outside Part of it will fall into the glass liquid in the flow channel

The bottom of the traditional float glass flow channel is a flat bottom structure, which is not conducive to the good flow of the glass liquid. Before the flow regulating gate, the glass liquid is easy to flow back and be involved in the outside air to generate air bubbles. The bubbles flow into the forming equipment with the flow of glass liquid. It cannot be eliminated, and eventually manifests as glass defects

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