Sheet glass stove

A glass furnace, flat technology, used in furnaces, furnace components, lighting and heating equipment, etc., can solve the problems of undesired material stress, uneven heating, obvious problems, etc.

Inactive Publication Date: 2008-07-16
埃里奥克－凯尔维特姆工业制炉有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the resulting air flow, especially in the case of large glass panes, causes uneven heating, which can lead to significant, undesired material stresses

Method used

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Examples

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Embodiment Construction

[0019] 1 and 2 show a simplified longitudinal and cross-sectional view of a planar glass furnace according to the invention. The flat glass furnace has a furnace lower part 1 and a furnace upper part 2 with a central part 3 and a roof 4 . The middle part of the furnace upper part and the top hood are separable from each other for maintenance purposes. At the entrance and exit of the middle part 3 there are lift gates 5 which can be moved by corresponding lifting equipment.

[0020] In the lower part 1 of the furnace, a row of furnace rollers 6 extends over the entire length of the furnace, the axes of rotation of which are perpendicular to the conveying direction. The furnace roller 6 is preferably made of quartz material, and its ends are movably laid on roller drive brackets 7 installed at both ends. The furnace rollers are driven, for example, by frequency-controllable drive motors, and by using toothed belt drives. In order to precisely align the furnace rollers at the ...

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Abstract

The invention relates to a sheet glass stove, in particular for tempering glass panes comprising a lower stove part (1) provided with stove rollers (6) for transporting the temperable glass panes, wherein the axes of rotation of said stove rollers (6) are arranged substantially in a perpendicular position to the direction of a glass pane extension. The stove also comprises a top stove part (2) consisting of a central section (3) and a lid (4). Said stove also provided with lower heating groups (8) and top heating groups (10), wherein said heating groups (8) are extended under the stove rollers (6) and the top heating groups (10) are extended thereabove and are formed by electric heat resistances. The inventive sheet glass stove comprises several air circulation units (11), which are mounted in the top stove part (2) above the top heating groups (10) and comprise an air circulating hood (12) and an integrated fan wheel (14), respectively, wherein said air circulating hood (12) is provided with exhaust openings (19), which communicate with the stove lower space in the top section of the top stove part (2), and several air nozzles (17) located on the bottom side of the air circulating hood (12) are supplied with compressed air by the fan wheel (14) and lead a coming out air stream in the direction of a heatable glass pane.

Description

technical field [0001] The invention relates to a flat glass furnace, which is particularly suitable for the heat treatment of glass sheets, wherein such a furnace can be coupled to a known section for rapid cooling and recooling of glass sheets heated in the furnace. Such flat glass furnaces have a furnace lower part and a furnace upper part. In the furnace, furnace rollers for conveying the glass to be heated are arranged. In addition to this, there are a plurality of heating elements which are intended to bring about as uniform a heating of the glass pane as possible. Background technique [0002] EP 1 241 143 A2 describes a lehr which is equipped not only at the bottom but also in the upper furnace area with heating elements and elements for heat convection in the upper part of the furnace. The glass sheet is conveyed through the furnace over rollers. The heat convection elements arranged in the longitudinal direction result in different heat convection zones which ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B29/08F27D7/04
CPCC03B29/08F27D7/04
Inventor 阿克塞尔·恩格斯格尔德·黑尼施
Owner 埃里奥克－凯尔维特姆工业制炉有限责任公司
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