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Float glass transition roller cleaning method and transition roller for realizing float glass transition roller cleaning method

A float glass and transition roller technology, applied in glass manufacturing equipment, glass transportation equipment, manufacturing tools, etc., can solve the problems of poor wiping effect, good cleaning effect, low labor intensity, etc., and save cleaning time and labor intensity. Low effect for precise control

Active Publication Date: 2020-01-14
成都南玻玻璃有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a new cleaning method for the float glass transition roll, aiming at the problems of poor wiping effect and heavy workload in the prior art float glass transition roll cleaning process. The friction between the transition roller and the transition roller can realize the cleaning of the transition roller. This method has good cleaning effect, low labor intensity, little impact on production, and no safety risk.

Method used

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  • Float glass transition roller cleaning method and transition roller for realizing float glass transition roller cleaning method
  • Float glass transition roller cleaning method and transition roller for realizing float glass transition roller cleaning method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] This embodiment takes the production of SiCaNa white glass with a thickness of 4 mm as an example. The temperature at which the glass begins to soften is 552 ° C. The transition rolls include the first transition roll, the second transition roll, and the third transition roll that are successively away from the exit of the tin bath. The temperature at the tin notch is 610°C, the temperature at the first transition roll is 580°C, the temperature at the second transition roll position is 570°C, and the temperature at the third transition roll position is 560°C. The three transition rollers in this production line are respectively connected to the transmission device which drives independently. In order to realize the temperature rise of each transition roller, a heating device is provided for each transition roller in the transition roller slag box.

[0068] When cleaning the first transition roller, the steps are as follows:

[0069] S1 cleaning phase,

[0070] Increas...

Embodiment 2

[0075] This embodiment takes the production of SiCaNa white glass with a thickness of 4mm as an example. The temperature at which the glass begins to soften is 560°C. The transition rolls include the first transition roll, the second transition roll and the third transition roll which are successively away from the exit of the tin bath. The temperature at the tin notch is 610°C, the temperature at the first transition roll is 580°C, the temperature at the second transition roll position is 570°C, and the temperature at the third transition roll position is 560°C. The three transition rollers in this production line are respectively connected to the transmission device which drives independently. In order to realize the temperature rise of each transition roller, a heating device is provided for each transition roller in the transition roller slag box.

[0076] When cleaning the first transition roller, the steps are as follows:

[0077] S0 temperature adjustment stage,

[00...

Embodiment 3

[0085] The difference between this embodiment and Embodiment 2 is that the control parameters for the temperature of the first transition roll and the glass ribbon are slightly different, the ratio of the speed increase of the first transition roll and the running time are slightly different.

[0086] In this embodiment, in the S0 temperature adjustment stage, the temperature of the first transition roll is raised to 605°C, and the temperature of the glass ribbon at the tin notch is raised from 610°C to 615°C. Raise the height of the first transition roller by 3mm. In the S1 cleaning stage, increase the speed of the first transition roller by 5%. The cleaning time is 8 minutes.

[0087] In this embodiment, the degree of softening of the glass ribbon is higher than that in Embodiment 1. The speed should not be too fast to avoid breaking the board.

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Abstract

The invention relates to the technical field of float glass production, and relates to a float glass transition roller cleaning method, which comprises: S0, a temperature adjusting stage: raising thetemperature of a to-be-cleaned transition roller to a first set value T1, and raising the temperature of a glass tape to a second set value T2, wherein the first set value and the second set value areboth within the plastic state temperature range of the glass; S1, a cleaning stage: adjusting the rotation speed of the to-be-cleaned transition roller to V1, wherein the linear speed of the to-be-cleaned transition roller is V0 under a normal working condition, and a ratio of V1 to V0 is 1.2:1-1.05: 1; and S2, a reduction stage: after cleaning is completed, reducing the speed of the transition roller to the normal working condition speed, reducing the temperature of the glass tape to the normal working condition temperature, and reducing the temperature of the transition roller to the normalworking condition temperature. According to the invention, by using the friction force between the transition roller and the glass tape, the pollutants on the transition roller are bonded to the glass tape to clean the transition roller. The invention further provides a transition roller for realizing the method.

Description

technical field [0001] The invention belongs to the technical field of float glass production, and relates to a method for cleaning a transition roll of float glass and a transition roll for realizing the method. Background technique [0002] In the float glass production process, the batch material enters the melting furnace through the feeder, and is melted into glass liquid at a high temperature of 1550 ° C ~ 1600 ° C. After clarification, cooling and other processes, the temperature is lowered to about 1100 ° C. After that, it freely flows downward into the tin tank and floats. On the molten metal tin, it is flattened, polished, and shaped to form a glass plate of desired thickness and width. The formed glass plate cools down slowly, and when it reaches the exit of the tin bath, the temperature drops to about 600°C, and then it is lifted and transported by three transition rollers with gradually increasing levels, and enters the annealing kiln for annealing and cooling. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B35/16C03B35/18C03B18/02
CPCC03B35/168C03B35/183C03B35/163C03B18/02
Inventor 唐文鹏贺有乐
Owner 成都南玻玻璃有限公司
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