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Device for rapid replacement of blast furnace cooling wall through external jacking without lowering stockline and construction method thereof

A technology of cooling stave and blast furnace, applied in the direction of cooling device, etc., can solve the problem of needing to drop the material line, re-line, and other parts cannot be kept still, so as to shorten the construction time, save materials, reduce the damage of the cooling stave and the furnace body. The effect of quench heat and quench effects

Active Publication Date: 2013-07-17
PANGANG GRP ENG TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that other parts cannot be kept still when replacing the cooling stave and need to drop the material line and re-start the line, the purpose of the present invention is to provide a construction method for quickly replacing the cooling stave of the blast furnace

Method used

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  • Device for rapid replacement of blast furnace cooling wall through external jacking without lowering stockline and construction method thereof
  • Device for rapid replacement of blast furnace cooling wall through external jacking without lowering stockline and construction method thereof
  • Device for rapid replacement of blast furnace cooling wall through external jacking without lowering stockline and construction method thereof

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Embodiment Construction

[0052] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0053] figure 1 It is a panoramic view of the blast furnace, which is filled with various iron-making raw materials (including coke, sinter, lump ore, limestone, pellets, etc.). figure 1 What the sign 12,13 represent in is stave, and it is arranged on furnace shell 14 insides.

[0054] figure 2 is a front view showing a top frame structure provided with a hydraulic press, image 3 It schematically shows the top view of the hydraulic press set on the top frame pushing into the old furnace shell and retracting from the old furnace shell, Figure 4 Schematically shows the side view of the hydraulic press that is arranged on the top frame jacking into the old furnace shell (for the sake of clarity, the baffle plate is not shown in the figure), Figure 5 It is a side view of the hydraulic press installed on the top frame jacking into the old furnace shell with...

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Abstract

The invention provides a device for rapid replacement of a blast furnace cooling wall through external jacking without lowering a stockline and a construction method thereof. The method comprises: dismounting a circulating water pipe line from a cooling wall area to be replaced; cutting the furnace shell of the cooling wall area to be replaced; arranging a jacking frame, which is provided with jacking instruments; jacking the furnace shell of the cooling wall area to be replaced and the cooling wall into the furnace with the jacking instruments, and forming an opening on the overall surface of the furnace shell of the blast furnace; and mounting a new cooling wall and a new furnace shell inside the opening. The device consists of: a jacking frame, on which jacking instrument seat boards are disposed; and jacking instruments that are installed on the jacking instrument seat boards and used for jacking the furnace shell of the cooling wall area to be replaced and the cooling wall into the furnace. The construction method in the embodiment of the invention has the advantages of reliably controlled construction process, low requirement for construction technical level and technical difficulty, less material waste, reusable construction facility, less operation, and no occupation of stockline clearing time and blowing-in charging time.

Description

technical field [0001] The invention relates to a device and a construction method for replacing a cooling wall of a blast furnace, and more specifically, relates to a device and a construction method for rapidly replacing a cooling wall of a blast furnace without lowering the top of the material line. Background technique [0002] The blast furnace stave is one of the main cooling equipments during the operation and production of the whole blast furnace. It is placed between the furnace shell and the furnace lining. The main material is cast iron, cast steel or copper. During the production process of the blast furnace stave, the stave is easily damaged due to the large load-bearing force, high temperature and continuous scour of the internal circulating water. In severe cases, the blast furnace shell may be burnt together and cause leakage. Every repair can no longer guarantee the production needs of the blast furnace, so the stave needs to be replaced regularly. [0003]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21B7/10
Inventor 罗浩楠秦川吴荣善冯树雄陈梦逢王平
Owner PANGANG GRP ENG TECH
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