Smelting device for producing optical glass

Abstract

The invention belongs to the field of glass smelting equipment, particularly discloses a smelting device for producing optical glass, and is intended to solve the problem that optical glass produced by an existing glass smelting device fails to meet the requirement of high-precision optical instruments for glass transparency. The smelting device for producing optical glass comprises a smelting container, a heating mechanism and a bubbling mechanism; a smelting cavity is arranged in the smelting container; both the bottom and sidewall of the smelting cavity are built with glass bricks made of quartz glass; the heating mechanism comprises a frame and an all-oxygen burner. The inner wall, forming the smelting cavity, of the smelting container is built with glass bricks made of quartz glass, glass staining due to the inner wall being corroded by high-temperature glass melt is substantially avoided, and transparency of the optical glass is guaranteed; in addition, the electrode heating structure of the smelting device is omitted, and it is avoided that glass melt contamination by staining impurities in electrode material due to the electrode being corroded by the high-temperature glass melt leads to glass staining.

Description

technical field [0001] The invention belongs to the field of glass melting equipment, and in particular relates to a melting device for producing optical glass. Background technique [0002] As a medium for light transmission, optical glass not only has strict requirements on the bubbles, stones, and stripes inside it, but also has higher requirements on its transmittance. The transmittance of optical glass is an index that reflects the ability of light to pass through the glass. When light enters the glass, most of the light will pass through the glass, and some of the light will be absorbed by the interior of the glass, and some of the light will be reflected by the surface of the glass. Therefore, the smaller the amount of light absorbed and reflected by the glass in the glass, the stronger the transmission ability of the glass. Generally speaking, most optical instruments using transmissive materials require materials with high transmittance. [0003] Studies have show...

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