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Repairing method for flow guiding bars in combustor during hot blast heater repairing

A repair method and burner technology, which is applied to furnaces, blast furnaces, heating furnaces, etc., can solve the problems of new and old stubble butt joints and poor sealing, and achieve the problems of poor butt joint and seal, tight joint and seal, and improved reliability Effect

Active Publication Date: 2016-04-13
BEIJING SHOUGANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a method for repairing guide rods inside the burner in the emergency repair of hot blast stoves, which solves the technical problems of the old and new butt joints and poor sealing when repairing broken or damaged guide rods in the prior art, and improves the efficiency of the old and new walls. Reliability of docking and sealing between

Method used

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  • Repairing method for flow guiding bars in combustor during hot blast heater repairing
  • Repairing method for flow guiding bars in combustor during hot blast heater repairing
  • Repairing method for flow guiding bars in combustor during hot blast heater repairing

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Embodiment

[0024] Please refer to figure 1 , the embodiment of the present application provides a method for repairing the guide rod 1 in the burner in the emergency repair of the hot blast stove, including:

[0025] Step 101: Prefabricate the guide rod 1 by pouring when it is found that the guide rod 1 in the burner is broken or damaged at the repair site of the hot blast stove;

[0026] Step 102: Support the formwork for pouring the wall in the wall to be repaired in the burner, and place the guide rod 1 in the formwork;

[0027] Step 103: Connect the integrally casted wall with the wall to be repaired by integral casting, and fix the guide rod 1 through the integrally casted wall.

[0028] The hot blast stove is a thermal equipment that integrates combustion and heat transfer processes to provide hot air flow for process needs. Its structure includes a combustion chamber and a burner. The burners of blast furnace hot blast stoves are basically devices suitable for burning gaseous fu...

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Abstract

The invention discloses a repairing method for flow guiding bars in a combustor during hot blast heater repairing. The method comprises the steps that when it is found that the flow guiding bars in the combustor are broken or damaged in the hot blast heater repairing field, the flow guiding bars are prefabricated in a pouring manner; a template for pouring a wall is erected in a to-be-repaired wall of the combustor, and the flow guiding bars are arranged in the template; and the overall pouring manner is adopted, the integrally-poured wall and the to-be-repaired wall are connected, and the flow guiding bars are fixed through the integrally-poured wall. In the technical scheme, the flow guiding bars are fixed in an integrally-pouring manner, butt joint and sealing of new and old connectors between the integrally-poured wall and the to-be-repaired wall are tighter, the technical problem that in the prior art, when the broken or damaged flow guiding bars are repaired, butt joint and sealing of the new and old rotation crops are not tight is solved, and the reliability of butt joint and sealing between a new wall and an old wall is improved.

Description

technical field [0001] The invention relates to the technical field of maintenance of refractory materials for hot blast stoves, in particular to a method for repairing guide rods in burners during emergency repair of hot blast stoves. Background technique [0002] A certain number of guide rods are installed in the gas channel of the blast furnace hot blast stove to control the flow field of the gas distribution in the furnace. These guide rods are machine-pressed and pressed with high-temperature-treated refractory shaped bricks. In the new hot blast stove masonry, it is placed on the upper part of the hot blast stove burner according to the design drawing, and is pressed by the refractory bricks built on the upper layer. When a large number of guide rods in the hot blast stove are suddenly broken or damaged for some reason, in order to ensure a stable gas flow field in the hot blast stove, the broken or damaged guide rods must be repaired and replaced. [0003] Since th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B9/10
CPCC21B9/10
Inventor 常醒民曹勇王桂才邵俊宁郑敬先杨晓婷芦文凯蔡景春
Owner BEIJING SHOUGANG CO LTD
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