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

Method for evaluating high-temperature softening-melting dropping properties of iron-bearing burden

An evaluation method, reflow technology, applied in the direction of furnace, blast furnace, furnace type, etc., can solve the problem of not enough to reflect the actual situation

Inactive Publication Date: 2013-02-13
UNIV OF SCI & TECH BEIJING
View PDF5 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pressure difference of the iron-containing charge begins to increase from the beginning of softening, and continues until the maximum pressure difference of the charge column appears, so only the evaluation of the droplet temperature range is not enough to reflect the actual situation of the iron-containing charge reflow zone in the blast furnace

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 evaluating high-temperature softening-melting dropping properties of iron-bearing burden
  • Method for evaluating high-temperature softening-melting dropping properties of iron-bearing burden
  • Method for evaluating high-temperature softening-melting dropping properties of iron-bearing burden

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Put the iron-containing charge and coke into the graphite reaction tube in such a way that the bottom and top layers of the material column are respectively 20g of coke, and the middle layer is the iron-containing charge, and the load of the material column is 1kg / cm 2 , start the drop test according to the conditions in Table 1. When the molten iron drops to the crucible at the bottom of the corundum tube, turn off the power and cool down to room temperature, and the test ends. The temperature, material column height and material column pressure difference during the test are monitored and recorded by the computer in real time.

[0033] Table 1 Drop test conditions for iron-containing charge

[0034]

[0035] Table 2 Evaluation comparison of reflow dripping characteristics of typical comprehensive charge

[0036]

[0037]

[0038]

[0039] The comprehensive furnace material used in the on-site production of a steel factory was subjected to a reflow drippin...

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 evaluating high-temperature softening-melting dropping properties of iron-bearing burden and provides a novel evaluation way for high-temperature softening-melting dropping properties of the iron-bearing burden. The evaluation comprises evaluation of lump ore, pellet, sintering ore, comprehensive burden and metalized iron-bearing burden. The method comprises division of iron-bearing burden softening-melting dropping temperature regions, a calculation method of property characteristic value in the regions, and evaluation of iron-bearing burden softening-melting dropping properties, and provides technical guide and support for evaluating the high-temperature softening-melting dropping properties of the iron-bearing burden. By the method, the size of the iron-bearing burden regions, and the pressure difference and shrinkage rate of material columns can be intuitively reflected, evaluation on the softening-melting dropping properties of the novel blast furnace burden and the influence of the softening-melting dropping properties on a softening-melting zone is facilitated, and significance for guiding the regulation of the upper part of the blast furnace is made.

Description

technical field [0001] The invention relates to an evaluation of high-temperature reflow dripping characteristics of iron-containing charge, including the evaluation of lump ore, pellet ore, sintered ore, comprehensive charge and metallized iron-containing charge. Background technique [0002] Retrieval conditions are used: abstract=(iron-bearing burden) AND abstract=(reflow dripping characteristics); or, abstract=(iron-bearing burden)AND abstract=(evaluation); and abstract=(iron-bearingburden)AND abstract=( Softening-melting dropping properties) were searched in domestic and foreign databases. After careful searching, there is no content of invention identical or similar to this patent application. [0003] The refractory dripping characteristics of the iron-containing charge determine the structure, position, and thickness of the blast furnace reflow zone, and directly affect the distribution of the gas flow in the massive zone of the furnace body and the indirect reducti...

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): C21B5/00G06F17/50
Inventor 吴胜利张丽华庹必阳武建龙孙颖
Owner UNIV OF SCI & TECH BEIJING
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