Optical glass clarifying device and clarifying method thereof

Abstract

The invention provides a clarification device for refining molten glass by efficiently discharging bubbles. The optical glass clarifying device, the platinum device and the heating element are arranged in the wall body, a molten glass inlet and a molten glass outlet are formed in the intersection position of the platinum device and the wall body, the platinum device divides the interior of the wall body into an upper heating cavity and a lower heating cavity, the platinum device comprises a crucible body, a feeding pipe and a baffle plate, and the feeding pipe penetrates through the inlet to be connected with the crucible body; and the baffle is arranged in the crucible body. The retention time concentration ratio of the molten glass in the clarification device is obviously improved, the slow flow area of the inlet section of the crucible body is obviously reduced, and the flow consistency of the molten glass is improved, so that the constant consistency of products and the inherent quality of the products are improved; the baffle effectively improves the heating efficiency of the clarifying device on the molten glass, and meanwhile, through the flow guide effect of the through holes distributed in the baffle, the flow velocity difference of the molten glass in the central area and the edge area is effectively reduced, the polymerization speed of bubbles in the molten glass in the rising process is accelerated, and the whole bubble discharging efficiency is improved.

Description

technical field [0001] The invention relates to a clarification device used in the production process of optical glass to discharge air bubbles and refine glass liquid from high-temperature glass liquid, and to use the clarification device to improve flow consistency in the process of exhausting and refining glass liquid and increase the minimum residence time of glass liquid in a clarification tank Clarify method. Background technique [0002] According to the entire change process of optical glass from powder to final glass state, according to the different changes in the intermediate chemical and physical processes, the industry usually uses space isolation to solve corresponding process problems and obtain products that meet customer quality requirements. Therefore, according to the characteristics of the optical glass production process, the production process is divided into main thermal processes such as powder melting, high-temperature clarification, stirring homogen...

AI Technical Summary

Problems solved by technology

Excessively high process temperature will lead to faster growth of platinum surface crystal grains when the glass liquid contacts platinum, and it is easy to accelerate the falling of platinum particles into the glass liquid, forming platinum flash point defects and resulting in lower transmittance and poor coloring of the final glass product And other issues

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