Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for repairing blast furnace cooling stave

A technology for cooling staves and blast furnaces, applied in the direction of cooling devices, etc., can solve problems such as affecting blast furnace production, wasting manpower, material resources, and threatening blast furnace safety production.

Inactive Publication Date: 2009-06-17
TIANJIN TIANTIE METALLURGICAL GRP
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The four-stage stave is a smooth stave and is located in the furnace hearth, which has seriously threatened the safe production of the blast furnace
In order to maintain the original cooling intensity and ensure the normal production of the blast furnace, according to the existing technical method, only the two staves can be replaced as a whole, and the wind needs to be shut down for more than 7 days, which not only wastes a lot of manpower and material resources, but also affects the blast furnace. production will cause huge economic losses

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for repairing blast furnace cooling stave
  • Method for repairing blast furnace cooling stave
  • Method for repairing blast furnace cooling stave

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0018] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS: The present invention will be further described below in conjunction with the accompanying drawings.

[0019] The first step is preparatory work. according to figure 1 , figure 2 The shape of the stave and the fractured part 4 are shown, which are made in advance image 3 , Figure 4 Power drill stand shown.

[0020] The second step is to drill holes. Cut off the blast furnace skin 11 after the blast furnace is shut down, exposing such as figure 1 Damaged staves shown, according to Figure 5 As shown, the electric drill stand is welded and fixed to the blast furnace skin 11 through the connecting device 12 . according to Figure 6 As shown, the position of the serpentine pipe 3 in the stave is calibrated according to the stave manufacturing drawings. At the fractured part 4 of the stave, drill holes 17 and 18 with a φ20mm drill bit 9 to find the position of the serpentine pipe 3 in the stave. Since there is a ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for repairing a damaged cooling wall of a blast furnace and is applicable to the blast furnace ironmaking production in the metallurgical industry. The invention aims at overcoming the disadvantage that the cooling wall is completely replaced after the blast furnace is blown down for a long time in the prior art, and provides a method for boring on a ruptured cooling wall by a self-made electric drill arranged on a rack, drilling through a coiler in the cooling wall, and then connecting the coiler with a hose to pass by a ruptured part to perform a water leakage test and a pressurizing test. The cooling wall repaired by the method can achieve the cooling intensity of a normal cooling wall in operation, thus ensuring the normal production of the blast furnace.

Description

Technical field: [0001] The invention relates to a method for repairing the damaged stave of the blast furnace during the ironmaking production process of the blast furnace in the metallurgical industry. Background technique: [0002] Blast furnace longevity is the goal pursued by modern blast furnaces, and the longevity of blast furnaces means the improvement of economic benefits. The cooling stave is the main equipment for blast furnace cooling, and the working condition of the stave directly affects the life of the blast furnace. The damage of the stave is an inevitable situation in the production process of the blast furnace. There are three ways to deal with the damage of the stave. First, reduce water or cut off water, which is not conducive to the enhanced smelting of the blast furnace and the life of the blast furnace; second, replace the stave as a whole, this method takes a long time to stop the wind, and the loss of output is large; The enterprise has had a prec...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C21B7/10B23P6/00
Inventor 刘瑞东庞顺清安国良李苗义
Owner TIANJIN TIANTIE METALLURGICAL GRP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com