A bushing brick for improving the production of glass fiber by removing impurities from both ends

By improving the material and structure of the perforator brick, the problem of impurities clogging the molten glass was solved, enabling more efficient glass fiber production, extending equipment life and improving production efficiency.

CN117865456BActive Publication Date: 2026-06-12CHONGQING SANLEI FIBERGLASS LNC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHONGQING SANLEI FIBERGLASS LNC
Filing Date
2023-12-25
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

During the glass fiber production process, when the high-temperature molten glass passes through the stencil brick, impurities can easily clog the stencil filter screen, leading to unstable fiber forming and affecting operating efficiency and raw yarn production.

Method used

The perforated bricks, made of high-temperature resistant chromium oxide aggregate, are modified to have flow channels at both ends, allowing the molten glass to flow from both ends to the middle. The bricks are also driven to rise and fall by lifting and heating components, providing protection, reducing impurity accumulation, and improving replacement efficiency.

Benefits of technology

It extends the service life of the perforated bricks, improves production efficiency and product quality, and ensures production stability and safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN117865456B_ABST
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Abstract

The application discloses a bushing brick for improving two-end impurity dropping during glass fiber production and relates to the technical field of glass manufacturing. The bushing brick comprises a brick body, a liquid flow groove is arranged on the top of the brick body, the brick body is made of aggregate chromium oxide material, and two liquid flow grooves are arranged on the left and right sides of the horn opening. The material of the brick body is the aggregate chromium oxide material which is resistant to high temperature and corrosion, and is different from common dense chromium bricks. The material is resistant to high temperature and can not be broken under the condition of low temperature and water impact at high temperature. In addition, the material is changed to increase the overall strength of the bushing brick, prolong the service life of the bushing brick, ensure the stability of production operation, and change the process mode from the mode of arranging the liquid flow groove in the middle to the mode of arranging the liquid flow groove at two ends. The glass liquid flows from two ends to the middle, the glass liquid flow speed is effectively slowed down, the glass liquid flow is more uniform, and the generation of impurities in the bushing filter screen is effectively improved and reduced.
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