High-refractive-index optical glass and preparation device thereof

Abstract

The invention discloses high-refractive-index optical glass and a preparation device thereof, and belongs to the technical field of glass preparation. the high-refractive-index optical glass comprises a treatment box, the top of the treatment box is provided with a grinding box, and the center of the bottom of the grinding box is provided with a discharge hole for glass powder to pass through; a material collecting plate for receiving glass raw materials is correspondingly arranged at the upper end of the interior of the treatment box, a powder secondary grinding mechanism is arranged below the material collecting plate, an inclined plate is arranged on the inner wall of the treatment box and located below the powder secondary grinding mechanism, and a conveying belt is arranged below the inclined plate. According to the optical glass, lead oxide is added into raw materials of the optical glass, the lead oxide and molten glass are further mixed when the raw materials are melted, so that the density of the glass is improved, the refractive index of the glass is also improved when the density of the glass is improved, and glass residues cooled by water injection can be crushed through the arranged grinding box; Meanwhile, the raw materials and the lead oxide can be fully mixed.

Description

technical field [0001] The invention belongs to the technical field of glass preparation devices, and in particular relates to a high-refractive-index optical glass and a preparation device thereof. Background technique [0002] In the manufacturing process of optical glass, the general process is as follows: the raw materials are melted to rough glass slag, and the crude glass slag is melted twice to the glass liquid that can directly make glass. In the process of secondary melting Add a certain amount of co-solvent and reducing agent to change the properties of the glass. [0003] In a kind of optical glass disclosed by a Chinese patent and its preparation method (CN105502934B), the glass slag is directly melted after obtaining the glass slag. Since the volume of the glass slag is different, this will cause the melting speed of the glass slag to be uneven, and it is easy to cause the glass slag to melt. The disadvantage that the slag cannot be completely melted. Content...

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Problems solved by technology

[0004] Aiming at the problem that melting glass slag directly during the preparation of existing optical glass may cause incomplete melting and increase the melting time, the present invention provides a high-refractive index optical glass and its preparation device. Add a grinding device, use the grinding device to crush the glass slag to shorten the melting time of the glass slag, and add lead oxide to increase the density of the glass liquid and increase the refractive index of the glass product

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