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A method for cleaning transition rolls of float glass and transition rolls for realizing the method

A float glass and transition roller technology, applied in glass transportation equipment, glass manufacturing equipment, manufacturing tools, etc., can solve the problems of poor wiping effect, good cleaning effect, low labor intensity, etc., which is beneficial to equipment improvement and easier Great effect on shedding and cleaning

Active Publication Date: 2022-04-08
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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  • A method for cleaning transition rolls of float glass and transition rolls for realizing the method
  • A method for cleaning transition rolls of float glass and transition rolls for realizing the 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 method for cleaning a transition roll of float glass. The method includes an S0 temperature adjustment stage; raising the temperature of the transition roll to be cleaned to a first set value T 1 ;Increase the glass ribbon temperature to the second set value T 2 ; Both the first set value and the second set value are within the temperature range of the glass plastic state; S1 cleaning stage; during normal working conditions, the linear velocity of the transition roller to be cleaned is V 0 , adjust the speed of the transition roller to be cleaned to V 1 , V 1 :V 0 =1.2:1~1.05:1; S2 reduction stage; after cleaning, reduce the speed of the transition roller to the normal operating speed, reduce the temperature of the glass ribbon to the normal operating temperature; reduce the transition roller temperature to the normal operating temperature. Utilize the friction between the transition roll and the glass ribbon to bond the pollutants on the transition roll to the glass ribbon to clean the transition roll. The invention also 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 Patents(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