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Glass melting furnace and glass melting method

A glass and melting chamber technology, applied in glass furnace equipment, glass production, glass manufacturing equipment, etc., can solve problems such as increased discharge

Active Publication Date: 2016-01-20
ASAHI GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the case of using a mixture of air and oxygen-containing gas as the gas mixed in fuel, NO x The amount of discharge may also increase (for example, refer to Non-Patent Document 1)

Method used

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  • Glass melting furnace and glass melting method
  • Glass melting furnace and glass melting method
  • Glass melting furnace and glass melting method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0037] figure 1 It is a process drawing of the manufacturing method of the glassware in embodiment of this invention. figure 2 It is a side view of the internal structure of the glass melting furnace in 1st Embodiment. image 3 It is a top view of the internal structure of the glass melting furnace in 1st Embodiment. image 3 In , the combustion area of ​​each burner (the outer edge of the flame of each burner) is shown surrounded by a dotted line.

[0038] Such as figure 1 As shown, the manufacturing method of a glass product includes: a melting step (S100) of melting a glass raw material to obtain a molten glass; A forming step of a predetermined shape (S104).

[0039] Among the above-mentioned processes, the clarification process (S102) is a process of supplying the molten glass obtained in the melting process to a clarification tank, floating and removing air bubbles in the molten glass. As a method of promoting the floating of air bubbles, there are, for example, a ...

no. 2 approach

[0078] The second embodiment relates to the glass melting furnace of the present invention. Specifically, the glass melting furnace of the present invention has a configuration in which a pair of exhaust ports are arranged at the center in the front-rear direction of the side wall. That is, the glass melting furnace of the present invention has a configuration in which a pair of exhaust ports are arranged in the center between the front wall and the rear wall.

[0079] Figure 4 It is a side view of the internal structure of the glass melting furnace in 2nd Embodiment. Figure 5 It is a plan view of the internal structure of the glass melting furnace in 2nd Embodiment. Figure 5 In , the outer edge of the flame of each burner is surrounded by a dotted line. It should be noted, Figure 4 , Figure 5 in, right with figure 2 , image 3 The same components are given the same reference numerals and descriptions thereof are omitted.

[0080] Such as Figure 4 , Figure 5 ...

no. 3 approach

[0092] The third embodiment relates to the glass melting furnace of the present invention. Specifically, the glass melting furnace of the present invention has a configuration in which a plurality of burners are arranged in a zigzag shape with a flow path interposed therebetween.

[0093] Figure 6 It is a side view of the internal structure of the glass melting furnace in 3rd Embodiment. Figure 7 It is a top view of the internal structure of the glass melting furnace in 3rd Embodiment. Figure 7 In , the outer edge of the flame of each burner is surrounded by a dotted line. It should be noted, Figure 6 , Figure 7 in, right with figure 2 , image 3 The same components are given the same reference numerals and descriptions thereof are omitted.

[0094] Such as Figure 6 , Figure 7 As shown, the melting furnace 1B is provided with a raw material inlet 21B on the front wall 11B of the melting chamber 10B, and has an outlet 22B on the rear wall 12B of the melting cha...

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Abstract

The present invention provides a glass-melting furnace capable of suppressing increases in emissions of CO2 and NOx and fully adjusting the amount of water dissolved in molten glass. A glass melting furnace, equipped with a plurality of burners 31 to 50 on the side walls 13 and 14 of the flow path 23 from the front wall 11 to the rear wall 12 of the melting chamber 10, wherein each of the plurality of burners 31 to 50 More than 30% and less than 90% of the total combustion heat Qa per hour is produced by the oxygen-assisted combustion burner. One exhaust port 24, 25 is arranged on each side wall of the two side walls 13, 14 of the melting chamber 10 in an opposite manner, and the distance from the exhaust port 24, 25 in the rearward direction is more than 0.6L At least one oxygen-assisted combustion burner and at least one air-assisted combustion burner are arranged in the area. More than 5% and less than 95% of the total combustion heat per hour of the burners arranged in this area are produced by air-assisted combustion burners.

Description

technical field [0001] The present invention relates to a glass melting furnace and a glass melting method for melting glass raw materials. Background technique [0002] The method of manufacturing glass products generally consists of the following steps: a melting step of melting glass raw materials to obtain molten glass, a clarification step of removing bubbles from the molten glass to clarify the molten glass, and a forming step of forming the clarified molten glass into a predetermined shape process. [0003] Among the above-mentioned steps, the melting step is a step in which glass raw materials obtained by weighing and mixing various raw materials according to the composition of the glass product are put into a melting furnace, heated to a temperature corresponding to the type of glass, and melted. [0004] The melting furnace has a raw material inlet on the front wall of the melting chamber for melting glass raw materials, an outlet on the rear wall of the melting c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B5/04C03B5/235
CPCC03B5/2353Y02P40/50C03B5/04C03B5/235
Inventor 栉谷英树市川敦广濑元之
Owner ASAHI GLASS CO LTD