Glass melting furnace and method for melting glass

A glass melting furnace and glass technology, applied in glass furnace equipment, glass production, glass manufacturing equipment, etc., can solve the problem of increased discharge

Active Publication Date: 2013-01-02
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 method for melting glass
  • Glass melting furnace and method for melting glass
  • Glass melting furnace and method for melting glass

Examples

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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

Disclosed is a glass melting furnace which is capable of suppressing an increase in the amount of emission of CO2 and NOX and adequately regulating the water content dissolved in molten glass. The glass melting furnace comprises a plurality of burners (31-50) on side walls (13, 14) of a flow path (23) from a front wall (11) to a rear wall (12) of a melting chamber (10), wherein 30% to 90% of the total combustion heat Qa per hour of the plurality of burners (31-50) is generated by oxygen combustion burners. Each side wall (13, 14) of the melting chamber (10) has one exhaust port (24, 25) positioned so that the exhaust ports face one another, and at least one each of an oxygen combustion burner and an air combustion burner is provided in a region at least 0.6 L away in a backward direction from the exhaust ports (24, 25). Of the total combustion heat per hour of the burners provided in the region, 5% to 95% is generated by the air combustion burner.

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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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
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