System for forming and manufacturing raw glass by using gas suspension method

Abstract

The invention discloses a system for forming and manufacturing raw glass by using a gas suspension method. The system comprises a glass runner, a gas suspension forming chamber, a gas medium, a high-temperature gas generator, a gas pressure intensity adjusting chamber, a glass pulling device, a sensor and a protective cover, wherein the glass runner inclines downwards, is in a shape with a big lower end and a small up end, and receives molten glass from a melting furnace; the gas suspension forming chamber comprises gas holes, a baffle and a recovering cover, the densely-distributed gas holesare located below the glass, and the baffle is located above the glass; the gas medium is in a high-temperature and high-pressure state, comes out from the gas holes with certain shapes, forms a gas suspension film layer and floats the glass, molten glass is gradually cooled on the suspension layer to form a glass tape, and the glass tape moves forwards through the tensile force of the glass pulling device, and enters an annealing furnace; the sensor feeds back gas temperature, pressure, and the height, speed and thickness values of the glass, so gas parameters can be conveniently controlled in real time; and the protective cover plays a role in heat preservation of the air suspension forming chamber, the protective cover is of a multi-layer sandwich structure, and a sandwiched layer is made of a heat insulation material.

Description

technical field [0001] The present invention generally relates to the field of flat glass production, especially the field of electronic raw glass production. Background technique [0002] The main methods of producing transparent flat glass raw sheets before are: float glass process characterized by tin bath, process using overflow method, and process characterized by flat lager method, and rolled glass but not transparent glass . Among them, the traditional tin bath float glass has the most manufacturers and the largest production capacity. However, there are certain deficiencies in the traditional tin bath float glass, mainly as follows: [0003] 1. Tin resources are increasingly scarce. Tin is one of the scarce mines in the world. The estimated reserves and consumption of global tin resources can only guarantee the consumption in the next 10 years or so. In 2019, the production of tin will be reduced by more than 30,000 tons. The gas suspension method does not requir...

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Problems solved by technology

[0004] 2. The tin surface contaminates the glass

[0005] 3. A large amount of nitrogen and hydrogen protective gases are required in the tin bath to prevent the tin liquid from being oxidized. There are many auxiliary equipments, and a large amount of energy is required to extract nitrogen and hydrogen.

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