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A molten glass conveying apparatus, a glass manufacturing apparatus, and a glass manufacturing method

A technology of molten glass and conveying equipment, which is applied in glass manufacturing equipment, manufacturing tools, glass furnace equipment, etc., can solve the problems of glass quality degradation, and achieve the effect of suppressing glass manufacturing costs and suppressing air bubbles

Pending Publication Date: 2020-11-24
ASAHI GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is concern about the deterioration of glass quality caused by the oxygen bubbles

Method used

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  • A molten glass conveying apparatus, a glass manufacturing apparatus, and a glass manufacturing method
  • A molten glass conveying apparatus, a glass manufacturing apparatus, and a glass manufacturing method
  • A molten glass conveying apparatus, a glass manufacturing apparatus, and a glass manufacturing method

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no. 1 approach

[0137] Figure 8 It is a figure which shows the glass manufacturing apparatus of 1st Embodiment of this invention. use Figure 8 , a glass manufacturing apparatus and a glass manufacturing method according to the first embodiment of the present invention will be described. It should be noted, Figure 8 Heat insulating materials such as bricks for heat insulation that are arranged around the molten glass conveying apparatuses 1 and 1A, the riser pipe 202 , and the downcomer 203 to heat-insulate them are omitted.

[0138] The glass manufacturing apparatus 500 is equipped with the melting apparatus 100, the vacuum degassing apparatus 200, the shaping|molding apparatus 300, and molten-glass conveyance apparatus 1, 1A. The molten glass delivery device 1A is installed between the melting device 100 and the vacuum degassing device 200 , and connects the melting device 100 and the vacuum degassing device 200 . Furthermore, the molten glass transfer device 1 is installed between th...

no. 2 approach

[0154] Figure 9 It is a figure which shows the glass manufacturing apparatus of 2nd Embodiment of this invention. use Figure 9 , a glass manufacturing apparatus and a glass manufacturing method according to a second embodiment of the present invention will be described. Here, the description of the melting device 100 , the forming device 300 , and the molten glass conveyance device 1A will be omitted for portions that overlap with the description of the first embodiment. It should be noted, Figure 9 Heat insulating materials such as bricks for heat insulation that are arranged around the clarification device 250 , the molten glass transfer device 1A, the first supply pipe 251 , the second supply pipe 252 , and the third supply pipe 253 and cover them in heat insulation are omitted.

[0155] The glass manufacturing apparatus 600 is provided with the melting apparatus 100, the clarification apparatus 250, the shaping|molding apparatus 300, and 1 A of molten-glass conveyanc...

no. 3 approach

[0164] Figure 10 It is a figure which shows the glass manufacturing apparatus of 3rd Embodiment of this invention. use Figure 10 , a glass manufacturing apparatus and a glass manufacturing method according to a third embodiment of the present invention will be described. Here, the description of the melting device 100 , the forming device 300 , and the molten glass conveyance device 1A will be omitted for portions that overlap with the description of the first embodiment. It should be noted, Figure 10 Heat insulating materials such as bricks for heat insulation which are arranged around the molten glass conveying apparatus 1A, the first conveying pipe 111 , and the second conveying pipe 112 and cover them with heat insulation are omitted.

[0165] The glass manufacturing apparatus 700 is provided with the melting apparatus 100, the forming apparatus 300, the molten-glass conveyance apparatus 1A, the 1st conveyance pipe 111, and the 2nd conveyance pipe 112. The molten gl...

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Abstract

The present invention relates to a molten glass conveying apparatus, a glass manufacturing apparatus, and a glass manufacturing method, the molten glass conveying apparatus comprising: a molten glassconduit structure including at least one conduit made of platinum or a platinum alloy; a first ceramic structure provided around at least one of the conduits; a second ceramic structure provided around the first ceramic structure; and a third ceramic structure provided between the first ceramic structure and the second ceramic structure, the third ceramic structure having a gas flow path and supplying a gas of 200 DEG C or higher to the gas flow path.

Description

technical field [0001] The present invention relates to a molten glass transfer device, a glass manufacturing device and a glass manufacturing method. Background technique [0002] A glass manufacturing device includes a melting device, a clarification device (including a vacuum degassing device and a high-temperature clarification device), a forming device, a molten glass conveying device that connects these devices, and the like. [0003] Platinum or platinum alloys are often used as materials for molten glass conveyors. Platinum or a platinum alloy is a heat-resistant metal with a high melting point and excellent heat resistance, and has lower reactivity with molten glass than other heat-resistant metals. Furthermore, it is excellent in oxidation resistance at high temperature, and can maintain strength to a certain extent even at high temperature. [0004] However, depending on the composition of the glass, when the molten glass comes into contact with a platinum mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B5/225C03B7/02C03C3/091C03C21/00
CPCC03B5/225C03B7/02C03C3/091C03C21/002C03B5/202C03B5/1675
Inventor 平兼慎司
Owner ASAHI GLASS CO LTD