Flame space of pure oxygen combustion kiln, pure oxygen combustion kiln and method for preparing glass liquid

An all-oxygen combustion and space technology, which is applied in glass production, glass furnace equipment, glass manufacturing equipment, etc., can solve problems such as accelerating the erosion of alkali vapor in the kiln to the roof tiles and shortening the life of the kiln.

Inactive Publication Date: 2017-05-31
TUNGHSU TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Severe thermal shock will cause premature burnout of kiln roof tiles, shorten the life of the kiln, and also accelerate the erosion of alkali steam in the kiln to the roof tiles

Method used

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  • Flame space of pure oxygen combustion kiln, pure oxygen combustion kiln and method for preparing glass liquid
  • Flame space of pure oxygen combustion kiln, pure oxygen combustion kiln and method for preparing glass liquid

Examples

Experimental program
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Effect test

Embodiment 1

[0049] Such as Figure 1-2 As shown, the flame space structure of this embodiment is used in an oxy-combustion kiln with a melting amount of 10 tons / day and natural gas as fuel. The flame space is matched with the melting pool 4 located below it, and the parapet 2 is provided with a burner 3, the burners 3 are symmetrically arranged in pairs, and form a flame 6 after burning during combustion. There is a liquid level scale line 11 on the pool wall, the flue gas outlet 5 is set on the top of the large wall 1 above the kiln feeding area, the feeding port 10 is located on the front gable 8, and the feeding machine is set on the front gable 8 when feeding. The feeding port 10 on the top is input with glass raw material, the material of the hole brick of the flue gas outlet 5 is 33# fused zirconia corundum brick, the material of the top brick of Dapan 1 is 33# fused zirconia corundum brick, and the material of the breast wall brick is α-β corundum brick; among them, h1 / L=1:8.3, (h...

Embodiment 2

[0053] Such as Figure 1-2 As shown, the flame space structure of this embodiment is used in an oxy-combustion kiln with a melting amount of 10 tons / day and natural gas as fuel. The flame space is matched with the melting pool 4 located below it, and the parapet 2 is provided with a burner 3, the burners 3 are symmetrically arranged in pairs, and form a flame 6 after burning during combustion. There is a liquid level scale line 11 on the pool wall, the flue gas outlet 5 is set on the top of the large wall 1 above the kiln feeding area, the feeding port 10 is located on the front gable 8, and the feeding machine is set on the front gable 8 when feeding. The feeding port 10 on the top is used to input glass raw materials, the material of the hole bricks of the flue gas outlet 5 is 36# fused zirconia corundum bricks, the material of the top bricks of the large wall 1 is 36# fused zirconia corundum bricks, and the material of the breast wall bricks is α-β corundum brick; among th...

Embodiment 3

[0057] Such as Figure 1-2 As shown, the flame space structure of this embodiment is used in an oxy-combustion kiln with a melting amount of 10 tons / day and natural gas as fuel. The flame space is matched with the melting pool 4 located below it, and the parapet 2 is provided with a burner 3, the burners 3 are symmetrically arranged in pairs, and form a flame 6 after burning during combustion. There is a liquid level scale line 11 on the pool wall, the flue gas outlet 5 is set on the top of the large wall 1 above the kiln feeding area, the feeding port 10 is located on the front gable 8, and the feeding machine is set on the front gable 8 when feeding. The feeding port 10 on the top is put into glass raw material, the material of the hole brick of the flue gas outlet 5 is 41# fused zirconia corundum brick, the material of the crown brick of Dapan 1 is α-β corundum brick, and the material of breast wall brick is β corundum brick Brick; among them, h1 / L=1:7.8, (h1+h2) / H=1.7:1, ...

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Abstract

The invention relates to the field of preparation of glass and discloses a flame space of a pure oxygen combustion kiln, the pure oxygen combustion kiln and a method for preparing a glass liquid. The flame space is a space formed by front and rear gable walls, a breast wall (2) and a crown (1) and is matched with a melting tank (4) located below the flame space; a combustor (3) is arranged in the breast wall; a liquid surface scale mark (11) is arranged on a tank wall of the melting tank; h1/L=1:(7.5-9), (h1+h2)/H=(1.3-1.8) and L1=90cm-110cm; h1 is the arch height of the crown, L is the arch span of the crown and h2 is the height of the breast wall; H is the vertical height between the liquid surface scale mark and the tank bottom of the melting tank; and L1 is the vertical height between the combustor and a crown top of the crown. The pure oxygen combustion kiln comprising the flame space can be used for preparing high-quality, stable and uniform glass liquid and the melting rate and the yield of the glass are improved; and the service life is obviously prolonged.

Description

technical field [0001] The invention relates to the field of glass preparation, in particular to a flame space of an all-oxygen combustion furnace, an all-oxygen combustion furnace and a method for preparing glass liquid. Background technique [0002] High-alumina high-alkali cover glass (Cover Glass) has a high melting temperature. When the mixture is melted in the kiln, the alkali vapor (alkali hydroxide) evaporated from the glass liquid, such as NaOH, and the kiln wall and the wall. The refractory material reacts, causing erosion. In oxy-fuel furnaces, due to the removal of nitrogen, the concentration of alkali hydroxide is three to four times that of conventional air-assisted furnaces, thereby accelerating the erosion of furnace materials. Accelerated erosion not only shortens the life of the kiln, but also causes dross to fall into the molten glass, increasing glass defects and reducing yield. [0003] The flame temperature, flame stiffness, and flame speed of oxy-fue...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B5/235C03B5/16C03B5/04
CPCC03B5/04C03B5/16C03B5/2353Y02P40/50Y02P40/57
Inventor 王兴龙严永海郑权
Owner TUNGHSU TECH GRP CO LTD
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