glass melting furnace

A glass melting furnace and melting zone technology, applied in glass furnace equipment, glass production, glass manufacturing equipment, etc., can solve problems such as expensive materials

Active Publication Date: 2016-03-16
AGC GLASS EUROPE SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of oxy-fuel combustion furnaces, it is more precisely necessary to resort to materials such as alumina, AZS or spinel, which, on the other hand, are however more expensive and also cause problems due to their significantly heavier weight

Method used

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Examples

Experimental program
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Embodiment Construction

[0088] figure 1 The furnaces shown in are of the type used in mass glass production, such as those used for feeding flat glass production units using suspension glass technology. This type of furnace can continuously produce glass in quantities up to 1000 tons / day. To achieve these properties, the furnace must have a power of up to 60MV.

[0089] The furnace 1 comprises a pool arranged in a closed chamber. The assembly is constructed of refractory materials that are resistant to high temperatures, corrosion by exhaust gases, and corrosion by molten materials. The height of the molten bath in the pool is indicated by dashed line 2.

[0090] The furnace is fed raw material at one end thereof. The opening through which the raw material is charged into the furnace is indicated at 3 . In fact, in order to facilitate distribution on the surface of the molten bath, multiple furnace loading points are usually set. The output of the molten glass, indicated by the arrow V, takes p...

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PUM

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Abstract

The invention relates to a glass melting furnace comprising a melting pool in the form of a channel, the introduction of raw materials at the upstream end and the recovery of molten glass at the downstream end, said melting furnace being heated by means of burners, of which at least 65% The combustion energy is produced by oxy-fuel combustion, said burners are distributed on the walls along the length of the melting furnace, where most of the exhaust gas is discharged near the upstream end near the opening for the introduction of raw materials, and the remaining exhaust gas is discharged near the downstream part. Vented to maintain a dynamic seal against ambient atmosphere.

Description

technical field [0001] The present invention relates to glass melting furnaces in which the melting energy is substantially generated by burners that are alimneter and fed oxygen or oxygen-enriched gas. These furnaces are generally defined as "oxy-combustion" furnaces. Background technique [0002] The incidental use of oxy-fuel burners is very well known in glass melting furnaces. In the case of furnace operation, usually with air, one or a limited number of oxy-fuel burners are added. The purpose of introducing these additional burners is usually to increase the throughput of existing furnaces, possibly when it is observed that the performance of existing furnaces has declined due to their age. This happens, for example, when it is found that the heat exchangers associated with such furnaces have become degraded and are no longer able to adequately heat the air for combustion. The throughput of a given furnace can also be increased simply by introducing a supplementary ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B5/04C03B5/235
CPCC03B3/023C03B5/04C03B5/2353Y02P40/50
Inventor O·杜尚J·贝昂
Owner AGC GLASS EUROPE SA
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