Glass melt production device, glass melt production method, glass article production device, and glass article production method
A technology for glass melting and manufacturing equipment, which is applied to glass manufacturing equipment, manufacturing tools, glass furnace equipment, etc., and can solve problems such as stoppage of glass article manufacturing equipment
Active Publication Date: 2017-05-31
ASAHI GLASS CO LTD
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- Description
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Problems solved by technology
The occurrence of overflow of the glass melt G at the next processing tank (not shown) will cause the operation of the glass article manufacturing equipment to stop, so it is necessary to avoid
Method used
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Embodiment Construction
[0049] Hereinafter, the present invention will be described with reference to the drawings.
[0050] figure 1 The shown glass melt manufacturing apparatus has: a melting tank 100 for melting glass raw materials to obtain a glass melt G; the inside is kept in a reduced-pressure atmosphere, and the bubbles in the glass melt G supplied from the melting tank 100 are floated and broken The vacuum degassing device 300 that is removed; the first conduit structure 200 that connects the melting tank 100 to the vacuum degassing device 300; (not shown) a guided second catheter configuration 400 .
[0051] use figure 1 The glass melt G obtained in the shown melting tank 100 is supplied to the vacuum degassing device 300 through the first conduit structure 200 .
[0052] figure 1 The shown vacuum degassing device 300 has a metal-made, such as stainless-steel-made, and the decompression housing 310 inside which maintains a depressurized state during use. A suction port 311 that perf...
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A glass melt production device comprising a first conduit structure that connects a melting tank and a vacuum degasser, and a second conduit structure that is provided downstream of the vacuum degasser and that leads the glass melt to a molding means, characterized by the vacuum degasser comprising a rising pipe, a vacuum degassing chamber, and a descending pipe, by the first conduit structure comprising an upstream pit that supplies the glass melt to the rising pipe, by the second conduit structure comprising a downstream pit that accommodates the glass melt from the descending pipe, by the glass melt production device further comprising a third conduit structure that connects the upstream pit and the downstream pit, by the third conduit structure being provided with a closing means that blocks the flow of the glass melt in the third conduit, and by the third conduit structure or the closing means being provided with an emergency glass melt passage through which the glass melt can flow depending on the height of the liquid surface of the glass melt in the third conduit structure and in the vicinity of the closing means.
Description
technical field [0001] The present invention relates to a glass melt manufacturing device, a glass melt manufacturing method, a glass product manufacturing device, and a glass product manufacturing method. Background technique [0002] Glass plates used in various applications such as construction, vehicles, and flat panel displays are produced by heating and melting raw materials mixed in a predetermined mixing ratio in a melting tank to obtain a glass melt, and then , the molten glass is clarified, formed into a glass plate having a predetermined thickness by a float process or the like, and cut into a predetermined shape. [0003] Here, clarification is an operation of removing and homogenizing bubbles remaining in the glass melt, and is performed in order to improve the quality of the glass plate to be produced. As this clarification method, the method of using the vacuum degassing tank which maintains the inside at a predetermined pressure reduction degree is known. I...
Claims
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Login to View More IPC IPC(8): C03B5/225
CPCC03B5/182C03B5/2252C03B5/262C03B18/02C03B25/00
Inventor 滨本浩明小林杰佐佐木道人久保岳三好涉二宫一夫
Owner ASAHI GLASS CO LTD