Roller-under-sealing system and adjustment method for float glass production

By forming an air curtain under the transition roller of the float glass slag box, the problem of the tin tank pollution atmosphere entering the slag box is solved, the cleanliness of the slag box and the quality of the glass plate are improved, and the air sealing effect is improved and the safety and reliability of the production process is achieved.

CN117228933BActive Publication Date: 2025-03-25XIANNING NANBO PHOTOELECTRIC GLASS CO LTD +1
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Patent Information

Application Number
CN202311095958.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-08-25
Publication Date
2025-03-25
Estimated Expiration
2043-08-25

AI Technical Summary

Technical Problem

In the production of float glass, the difficulty in improving the quality of the float glass below is mainly due to the pollution atmosphere of the tin tank entering the slag box, especially the airflow under the glass plate has a great impact on the quality of the table below, which makes it difficult for the prior art to effectively control the flow of the tin tank atmosphere into the slag box.

Method used

A under-roll sealing system is designed to form an air curtain under the transition roller in the floating glass slag box, and a protective gas is input to form an air curtain to block the tin tank atmosphere into the slag box.

Benefits of technology

It effectively improves the cleanliness of the slag box, improves the quality of the glass plate below, and achieves the air sealing effect through relatively small gas sealing volume, reduces the impact on the cooling of the slag box plate and glass plate, protects the stability of the temperature and atmosphere in the slag box, and improves the safety and reliability of the floating glass production process.

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Patent Text Reader

Abstract

The present application relates to a roller sealing system and a method for adjusting float glass production. The roller U-shaped groove is used to be arranged under the transition roller in the float glass slag box; the air curtain outlet cavity support structure is arranged on the roller U-shaped groove; the air curtain outlet cavity is arranged on the air curtain outlet cavity support structure, the air curtain outlet cavity is connected to the air inlet pipeline to input the protective gas through the air inlet pipeline, and the air curtain outlet cavity is provided with an outlet to output the protective gas through the outlet to form an air curtain. By forming an air curtain under the transition roller, on the one hand, it is beneficial to block the tin bath atmosphere flow from entering under the slag box plate, improve the cleanliness of the slag box, and improve the surface quality of the glass plate; on the other hand, it is beneficial to achieve the air sealing effect by using a relatively small amount of air sealing gas, so that the cooling of the slag box plate and the glass plate is less affected, that is, the annealing quality is less affected, which is beneficial to the stability of the temperature and atmosphere in the protective slag box, and improves the safety and reliability of the float glass production process.
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