Process for stabilizing glass pool furnace by regulating gas heat value and method for smelting glass

A gas calorific value and glass pool technology, which is applied in glass furnace equipment, glass production, glass manufacturing equipment, etc., can solve problems such as unstable process of pool furnace, reduced output, and breakage

Inactive Publication Date: 2005-03-02
HENAN ANCAI HI-TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When replacing the grid body by hot repair, it is necessary to reduce the temperature of the pool furnace, and at the same time reduce the output, etc., and generally need 15-20 days of hot repair time, which will cause fluctuations in the process of the pool furnace during this period, directly affecting normal production; and this Such fluctuations and influences often take a long time to eliminate
In addition, as the melting pool at the heart of the pool furnace, fused zirconia corundum is generally used as the refractory material in contact with the molten glass. This type of refractory material is particularly sensitive to temperature fluctuations, and it is easy to crack or even break under the action of temperature fluctuations, especially The severely eroded parts cannot withstand the temperature fluctuations caused by large-scale hot repair projects such as replacing the lattice body
In fact, hot repairs to glass pool furnaces have many disadvantages in practice
[0005] As for the instability of the pool furnace process caused by the collapse of the lattice body, the fault can be eliminated through cold repair, but production must be stopped during cold repair, resulting in production losses

Method used

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  • Process for stabilizing glass pool furnace by regulating gas heat value and method for smelting glass
  • Process for stabilizing glass pool furnace by regulating gas heat value and method for smelting glass

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Glass was melted at 1500°C in a glass pool furnace of 140 cubic meters using liquefied petroleum gas. When the furnace was 30 months old, it was found that the lattice body was eroded, and the glass products had bubbles, stones, and streaks.

[0031] Switch the gas to a mixed gas obtained by mixing 30% liquefied petroleum gas and 70% natural gas by volume, and its calorific value has been detected to be 12850kcal / m 3 . The combustion temperature is still 1500°C.

[0032] After running for 3 months after switching, it was found that the lattice body erosion did not deteriorate significantly, and the quality of glass products met the requirements.

Embodiment 2

[0034] Melting Glass in a Glass Pool Furnace Using Natural Gas Glass was melted at 1480°C in a 140 cubic meter glass pool furnace. When the furnace age was 32 months, it was found that the lattice body was eroded, and the glass products had bubbles, stones, and streaks.

[0035] Switch the gas to a mixed gas obtained by mixing 12 vol% liquefied petroleum gas and 88 vol% natural gas, and its calorific value has been detected to be 12850kcal / m 3 . The combustion temperature is still 1480°C.

[0036] After 5 months of operation after switching, it was found that the lattice body erosion did not deteriorate significantly, and the quality of glass products met the requirements.

Embodiment 3

[0038] Since the beginning of operation, in the 140 cubic meter glass pool furnace, the mixed gas obtained by mixing 20 vol% liquefied petroleum gas and 80 vol% natural gas has been used to melt glass at 1515 ℃, and its calorific value has been detected as 11850kcal / m 3 . When the furnace age was 35 months, no corrosion of the lattice body was found, and the quality of the glass products met the requirements.

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Abstract

The present invention relates to the process of stabilizing glass molten pool furnace and method of smelting glass. Fuel gas with heat value of 9000-13000 kcal / cu m is introduced into glass molten pool furnace. The present invention is suitable for glass molten pool furnace in the later stage of furnace life.

Description

technical field [0001] The invention relates to a glass pool furnace operation process, in particular to a method for stabilizing the glass pool furnace process and melting glass by optimizing the calorific value of fuel. Background technique [0002] In the production of glass and its products, the glass pool furnace is one of the key equipment. At present, the regenerative glass pool furnace is still used in many factories. In the regenerative glass pool furnace, the parts that are severely eroded are the pool wall and the liquid flow hole. When the glass pool furnace enters the late stage of furnace life, due to the collapse of the lattice body, the heat storage capacity of the regenerator decreases, resulting in the failure of effective control of the pool furnace process. Therefore, generally when the glass pool furnace is 3-5 years old, the lattice body must be replaced to eliminate this adverse effect. [0003] There are two ways of hot repa...

Claims

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Application Information

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IPC IPC(8): C03B5/16C03B5/235
CPCC03B5/235Y02P40/57
Inventor 李留恩贾伟苍利民韩广军张宏伟高明付
Owner HENAN ANCAI HI-TECH
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