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High-flow precious metal channel

A precious metal, high-flow technology, applied in glass production, feeding troughs, etc., can solve problems such as limited processing capacity, inability to achieve high-quality and stable clarification, and inability to guarantee high-temperature mechanical strength to achieve excellent results, ensure service life and high temperature Effect of mechanical strength and high yield

Active Publication Date: 2020-09-25
(CNBM) BENGBU DESIGN & RES INST FOR GLASS IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the Chinese invention patent CN101935146B describes a treatment method for molten glass in a platinum channel, through five-stage processing steps of a clarification bin, a cooling bin, a stirring bin, a homogenizing bin and a feeding bin to achieve 5 to 20 tons Clarification and homogenization of molten glass flow rate per day, but the processing capacity of this method is still very limited. For large flow rate of molten glass higher than 20 tons per day, the high temperature mechanical strength cannot be guaranteed due to the large platinum tube required, and high quality cannot be achieved. Stable clarification; Chinese invention patent CN105948462A relates to a platinum channel heating device, method, platinum channel and glass production system, using the device to generate an alternating magnetic field, forming an induced eddy current on the platinum channel, and the eddy current flows through the platinum channel to generate heat , to achieve uniform heating of the platinum channel, but the invention does not involve a specific treatment method for large-flow molten glass

Method used

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  • High-flow precious metal channel

Examples

Experimental program
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Effect test

Embodiment 1

[0016] Such as figure 1 As shown, a large-flow noble metal passage includes a mixed-flow stirring section 1 of molten glass, and the mixed-flow stirring section 1 of molten glass includes a confluence channel 1a with a diameter of 400mm, and one end of the confluence channel 1a is connected to the two diameters of The cooling channel 2c with a length of 280mm and a length of 3000mm is connected, and a set of spoiler 1c is welded in the confluence channel 1a. The set of spoiler 1c includes eight spoilers 1c that are misplaced from each other. Through these eight spoilers The plate 1c divides a section of serpentine flow channel 4 in the confluence channel 1a.

[0017] The confluence channel 1a at one end of the serpentine flow channel 4 is also connected in turn with three molten glass stirring tanks 1b with a diameter of 400 mm, a rotating speed of 3 revolutions per minute, and stirring directions of counterclockwise, clockwise, and counterclockwise respectively. A liquid sup...

Embodiment 2

[0022] Such as figure 1 As shown, a large-flow noble metal passage includes a mixed-flow stirring section 1 of molten glass, and the mixed-flow stirring section 1 of molten glass includes a confluence channel 1a with a diameter of 300mm, and one end of the confluence channel 1a is connected to the two diameters of The 220mm cooling channel 2c with a length of 2000mm is connected, and a set of spoiler 1c is welded in the confluence channel 1a. The set of spoiler 1c includes five spoiler 1c that are misaligned with each other. Through these five spoiler The plate 1c divides a section of serpentine flow channel 4 in the confluence channel 1a.

[0023] On the confluent channel 1a at one end of the serpentine flow channel 4, there are also three molten glass stirring tanks 1b with a diameter of 350 mm, a rotating speed of 8 revolutions per minute, and stirring directions of clockwise, counterclockwise, and clockwise respectively. A liquid supply tank 3 with a diameter of 300 mm is...

Embodiment 3

[0028] Such as figure 1 As shown, a large-flow noble metal passage includes a mixed-flow stirring section 1 of molten glass, and the mixed-flow stirring section 1 of molten glass includes a confluence channel 1a with a diameter of 500mm, and one end of the confluence channel 1a is connected to the two diameters of The cooling channel 2c with a length of 360mm and a length of 6000mm is connected, and a set of spoiler 1c is welded in the confluence channel 1a. The spoiler 1c divides a section of serpentine flow channel 4 in the confluence channel 1a.

[0029] On the confluence channel 1a at one end of the serpentine flow channel 4, there are also three molten glass stirring tanks 1b with a diameter of 550 mm, a rotating speed of 18 revolutions per minute, and stirring directions of counterclockwise, clockwise, and counterclockwise respectively. A liquid supply tank 3 with a diameter of 500 mm is communicated with the liquid outlet of the last molten glass stirring tank 1b.

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Abstract

The invention provides a high-flow precious metal channel, which comprises a molten glass mixed-flow stirring section, at least two molten glass heating; clarifying and cooling sections are connectedin parallel to one end of the molten glass mixed-flow stirring section, and a liquid supply tank is further communicated with the other end of the molten glass mixed-flow stirring section. The methodis mainly used for clarification and homogenization of large-flow high-temperature molten glass in the production process of 8.5-generation or higher-generation TFT glass, and bubble-free and stripe-free high-quality molten glass is provided for the subsequent float forming or overflow forming process.

Description

Technical field: [0001] The invention relates to electronic glass manufacturing equipment, specifically a large-flow precious metal channel mainly used in the production process of TFT glass substrates of 8.5 generations and above. Background technique: [0002] The technology of using precious metal channels to process molten glass is currently the most commonly used method for producing TFT glass. This method takes advantage of the advantages of precious metals such as good temperature resistance, direct heating with electricity, and good ductility. It can be directly heated to 1650°C by electricity, and can realize effective bubble removal at high temperature of the TFT substrate glass liquid, and achieve high-quality clarification and homogenization. The function is the key technical equipment for the production of TFT glass, and it is easy to realize mass production. Many patents and documents at home and abroad involve this process. For example, the Chinese invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B7/07
CPCC03B7/07Y02P40/57C03B5/04C03B5/182C03B5/187C03B5/1675C03B5/225Y02P10/20C03B5/23
Inventor 彭寿张冲金良茂曹志强江龙跃朱明柳沈玉国
Owner (CNBM) BENGBU DESIGN & RES INST FOR GLASS IND CO LTD
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