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Online hot patching repair method for collapse of small furnace bottom plate of glass melting furnace

A glass melting furnace and furnace bottom plate technology, which is applied in the field of glass melting furnaces, can solve problems that threaten the safety of the furnace and the stability of production quality, and achieve the effects of reducing furnace safety hazards, slowing down burning loss, and solving collapse problems

Active Publication Date: 2021-05-07
ZHANGZHOU KIBING GLASS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a glass melting furnace for the collapse of the bottom plate of the small furnace in the later stage of the float glass furnace, which seriously threatens the safety of the furnace and the stability of production quality. The online hot repair method for the collapse of the small furnace bottom plate is a repair system and process that can prolong the service life of the small furnace bottom plate of the float glass furnace. Benefits, enhance the competitiveness of enterprises

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  • Online hot patching repair method for collapse of small furnace bottom plate of glass melting furnace
  • Online hot patching repair method for collapse of small furnace bottom plate of glass melting furnace
  • Online hot patching repair method for collapse of small furnace bottom plate of glass melting furnace

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Embodiment 1

[0061] like figure 1 As shown, it is a plan view of a float glass melting furnace. The melting furnace includes a small furnace 1, a regenerator 2, a melting part 3, a clarification part 4, a neck 5, a cooling part 6, etc.; the regenerator 2 and the small furnace 1 are usually There are two groups, which are arranged symmetrically on both sides of the melting part 3 . Depending on the size of the melting amount, there are usually 4 to 10 small furnaces 1 on each side. The small furnace 1 is connected to the regenerator 2 and the melting part 3, and its structure usually includes a small furnace bottom plate 11, a small furnace nozzle 12, a small furnace slope 14, etc. The small furnace nozzle 12 is often provided with nozzle bricks 13 and spacer bricks, such as figure 2 and image 3 .

[0062] A method of online hot repair and emergency repair for the collapse of the bottom plate of a small glass melting furnace of the present embodiment:

[0063] In October 2020, the bot...

Embodiment 2

[0097] A company's 4# production line was put into operation in September 2011. The kiln has been running for the sixth year. The bottom of the left and right 1~5# small furnaces collapsed frequently. Corundum bricks or zirconium corundum bricks were used for bridges, and they were sealed with zirconium sealing materials. Hot steel plate support reinforcement. However, due to the poor sealing, there is a phenomenon of fire and ventilation, so the bricks that bridge the bridge are quickly burned out. Frequent repair of the bottom plate of a small furnace not only increases the difficulty again and again, but also poses a serious safety hazard in the furnace, and each repair process will cause a large area of ​​defects and affect the quality of the glass. After years of exploration and research, in March 2018, the small furnace bottom plate of the left and right 1-5# small furnaces was fully repaired by the method of the present invention. After the 4# line adopts the method of...

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Abstract

The invention discloses an online hot patching repair method for collapse of a small furnace bottom plate of a glass melting furnace. The method comprises the following steps: cleaning a collapsed part of the small furnace bottom plate, mounting a plurality of zirconia corundum bricks in a notch of the collapsed part for bridging, then carrying out ceramic soldering on the bridging part of the small furnace bottom plate so as to reinforce and seal, and then supporting and reinforcing a ceramic soldering area by using a heat-resistant steel plate; in the process, an independent cooling air system is used for independently blowing and cooling the bottom plate of the small furnace. When the small furnace bottom plate in the middle and later periods of the float glass furnace is seriously burnt and exploded and even collapsed, the method can effectively repair the seriously burnt and even collapsed small furnace bottom plate of the glass melting furnace, stable and normal production operation is ensured, and water is prevented from being discharged in advance for cold repair; in addition, larger potential safety hazards or production accidents of the kiln caused by further deterioration of collapse of the small furnace bottom plate can be avoided.

Description

technical field [0001] The invention belongs to the technical field of glass manufacturing, and specifically relates to the related technology of glass melting furnaces. Background technique [0002] Under the guidance of the national energy-saving and consumption-reducing policy, in order to achieve the business goals of increasing output, reducing energy consumption, and improving efficiency, various glass companies have continuously invested in the construction of float glass production lines with a pulling capacity of more than 900t / d super-large melting furnaces. However, due to various reasons such as the furnace combustion system, the furnace pool wall is seriously eroded, and there is a risk of leakage of glass water. It will also bring about problems such as the collapse of the bottom plate of the small furnace and the inclination of the breast wall, so that the service life of the furnace fails to meet the design life requirements. , it was forced to water-cold rep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B5/04
CPCC03B5/04
Inventor 林荣茂谢庆添姜志成雷明谢镇山
Owner ZHANGZHOU KIBING GLASS