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

A sintered ore capable of improving viscosity of blast furnace slag and a preparation method thereof

A blast furnace slag and sinter technology, which is applied in the field of sinter, can solve the problems of poor fluidity of blast furnace slag, achieve the effects of no deterioration of coal consumption index, simple and easy preparation method, and increase production efficiency

Inactive Publication Date: 2009-03-04
武钢集团有限公司 +1
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the invention is to solve the problem of high Al in existing iron ore 2 o 3 In order to solve the problem of poor flowability of blast furnace slag caused by enrichment, it provides a sintered ore with higher grade, lower cost, simpler production process, and can effectively improve the viscosity of blast furnace slag and its preparation method

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
  • A sintered ore capable of improving viscosity of blast furnace slag and a preparation method thereof
  • A sintered ore capable of improving viscosity of blast furnace slag and a preparation method thereof
  • A sintered ore capable of improving viscosity of blast furnace slag and a preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0027] As shown in the figure, the sinter preparation process of the present invention is roughly divided into: raw material preparation → primary mixing → secondary mixing → distribution → ignition → sintering → cooling → screening and other stages. The specific operation steps are as follows:

[0028]1) Raw material equipment: According to the specific requirements of the blast furnace for the basicity CaO / SiO2 and MgO content of the sintered ore, the finished sintered ore meets the basicity CaO / SiO2=1.5-3.0, the content of TFe is 50-60%, and the content of MgO is The index of 1.5-4.0%, in the weight ratio is 70-85% of iron-containing raw materials, 2-5% of quicklime, 0-8% of dolomite, 5-12% of limestone, 0.2-5% of light-burned magnesium oxide powder, coal In the range of 3% to 8% of coke powder or coke powder, the conventional calculation me...

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

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
thicknessaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a sintered ore and preparing method of improved blast furnace slag viscosity to solve bad fluidity of blast furnace slag with high Al2O3 in the present ferric ore, which comprises the following parts: 70-85% ferric material, 2-5% limestone, 0.2-5% light-burned magnesia powder and 3-8% coal dust or coke dust, wherein the alkalinity of CaO and SiO2 of sintering ore is 1.5-3.0 with TFe at 50-60% and MgO at 1.5-4.0%. The preparing method comprises the following steps: allocating raw materials; blending once and twice; distributing materials; igniting; sintering; cooling; sieving.

Description

technical field [0001] The invention relates to sintered ore used as one of blast furnace ironmaking raw materials in the metallurgical industry, in particular to a sintered ore capable of improving the viscosity of blast furnace slag and a preparation method thereof. Background technique [0002] In the field of blast furnace ironmaking, the viscosity of blast furnace slag is an important indicator of blast furnace smelting, which is mainly reflected in the fluidity of blast furnace slag. The fluidity of blast furnace slag can not only affect the quality of pig iron, but also affect blast furnace productivity and slag discharge operation efficiency. The fluidity of blast furnace slag is mainly determined by the Al content in the slag. 2 o 3 and the amount of MgO is determined. When Al 2 o 3 When the content of MgO is too high, the viscosity of the slag increases, the slag becomes thicker, and the fluidity becomes poor; when the content of MgO is too high, the viscosity...

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 Patents(China)
IPC IPC(8): C22B1/14C22B1/16C22B1/26
Inventor 翁得明李荐胡立新胡平李怀远冯红云蒋文笛
Owner 武钢集团有限公司
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