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

Blast furnace smelting raw material and smelting method thereof

A technology of blast furnace smelting and smelting methods, applied in the field of iron and steel metallurgy, can solve problems such as hearth activity abnormality, economic loss, hearth accumulation, etc., and achieve the effects of reducing blast furnace smelting costs, maintaining stability and increasing production costs

Inactive Publication Date: 2019-03-08
ANHUI UNIVERSITY OF TECHNOLOGY
View PDF5 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Practice has proved that it is dangerous to improve the flowability of slag only by controlling the thermal system. Once the furnace temperature is low, the flowability of slag will be significantly reduced or completely lost, resulting in abnormal hearth activity and even hearth accumulation. Vicious accidents that 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
  • Blast furnace smelting raw material and smelting method thereof
  • Blast furnace smelting raw material and smelting method thereof
  • Blast furnace smelting raw material and smelting method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The method of the present invention is described below in conjunction with implementation example:

[0038] In this embodiment, no magnesium-containing flux ore is added during the sintering batching and blast furnace smelting process, but a part of boron-magnesium-iron concentrate is added to the sintering batching to produce high-alumina, low-magnesium boron-containing sinter, and the composition of boron-magnesium-iron concentrate As shown in Table 2, the composition and content of the high-alumina, low-magnesium boron-containing sintered ore with 5% boron-magnesium iron concentrate are shown in Table 3.

[0039] Table 2 Main components and content of boron magnesium iron concentrate

[0040]

[0041] Table 3 Main components and content of high-alumina, low-magnesium boron-containing sinter

[0042]

[0043] The blast furnace smelting charge required for blast furnace smelting in this embodiment includes, by weight percentage: 71% of high-aluminum, low-magnesi...

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 discloses a blast furnace smelting raw material and a smelting method thereof. The invention provides a high-aluminum low-magnesium boron-containing blast furnace smelting raw material and a method for carrying out high-aluminum low-magnesium boron-containing blast furnace smelting by virtue of the furnace material. The furnace material is composed of high-aluminum low-magnesium boron-containing sintered ores, pellet ores and lump ores; magnesium-containing fluxing ores are not added into the blast furnace material in a matching manner; the high-aluminum low-magnesium boron-containing sintered ores are formed by sintering the mixture of high-aluminum iron ore powder, boron-magnesium iron ore powder and sintering auxiliary materials; the pellet ores are common pellet ores; andthe lump ores are high-grade lump ores. According to the blast furnace smelting raw material and the smelting method thereof, the high-aluminum low-magnesium boron-containing sintered ores and the common pellet ores are selected, and the lump ores are reasonably added in a matching manner in a blast furnace smelting process; the slag structure and performance are improved by selecting a reasonable blast furnace operation system; and smooth slag-iron discharge is achieved, so that the stable and smooth running of the blast furnace is kept, and the pig iron smelting cost is lowered.

Description

technical field [0001] The invention belongs to the technical field of iron and steel metallurgy, and in particular relates to a blast furnace smelting raw material and a smelting method thereof. Background technique [0002] Since the first quarter of 2012, China's iron and steel industry experienced the first industry-wide loss in the 21st century. In 2015, it has entered a situation where the entire main industry is losing money. The iron and steel industry is facing the "new normal" of "three lows and one high", that is, "low growth, low price, low efficiency, and high pressure". Facing this unprecedented "new normal", iron and steel enterprises must go through continuous reform, innovation, transformation and upgrading in order to find a way out for the future. As an important part of the iron and steel industry chain, ironmaking accounts for 70% of the entire production cost, and shoulders the important task of saving energy, reducing emissions, reducing costs and inc...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C21B5/00C21B3/02
CPCC21B3/02C21B5/008
Inventor 代兵龙红明赵一冉松龄梁科吴玉喜季益龙
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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