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

A method of using mineral material to increase the consumption and productivity of sintered iron concentrate

A technology for iron concentrate and productivity, applied in the field of sintering in the metallurgical industry, can solve problems such as narrow application range, and achieve the effects of improving the air permeability of the material layer, increasing the amount of iron concentrate, and reducing fuel consumption

Active Publication Date: 2016-12-28
BAOSHAN IRON & STEEL CO LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the methods for increasing the amount of iron ore concentrate and sintering productivity described in the above-mentioned patents also need to increase pretreatment equipment and pelletizing facilities, and are highly targeted and have a narrow scope of application

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 method of using mineral material to increase the consumption and productivity of sintered iron concentrate
  • A method of using mineral material to increase the consumption and productivity of sintered iron concentrate
  • A method of using mineral material to increase the consumption and productivity of sintered iron concentrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] see figure 1, The method for increasing the consumption and productivity of sintered iron ore concentrate of the present invention firstly sieves the returned ore and fine ore into two parts according to the particle size of 1.0-2.0mm and 4.0-5.0mm respectively. Second, the returned ore and fine ore with a particle size of less than 1.0-2.0mm and 4.0-5.0mm, respectively, are vigorously stirred with other ingredients such as iron concentrate, iron-containing solid waste, solid fuel and flux to prepare the sintering mixture Mixing and secondary cylinder mixing and granulation. During the process of secondary cylinder mixing and granulation, return ore with a particle size greater than 1.0-2.0mm obtained by screening is added. Thirdly, during the process of transporting the mixture obtained by the secondary cylinder mixing and granulation to the mixing silo for distribution, evenly add the fine ore with a particle size greater than 4.0-5.0mm obtained by screening. Finally...

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
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for using mineral material for increasing the consumption and productivity of sintered iron concentrate. The method comprises firstly screening returned ore and fine ore into two parts according to the particle size of 1.0-2.0mm and 4.0-5.0mm. Second, the small-sized returned ore and powdered ore are mixed with iron concentrate, iron-containing solid waste, solid fuel, flux and other ingredients for preparing sintering mixture, and then undergo a strong mixing and secondary cylinder mixing and granulation. In the process of secondary cylinder mixing and granulation, return ore with large particle size is added. Third, during the process of transporting the mixture obtained from the secondary cylinder mixing and granulation to the mixing silo for distribution, large-sized fine ore is evenly added. Finally, the segregation distribution method is used to make the mixture produce reasonable particle size segregation along the height direction of the sintering trolley, and sintered ore is formed after ignition and sintering. According to the method of the invention, the granulation effect of the sintering mixture can be improved, the gas permeability of the material layer in the sintering process can be improved, the amount of iron concentrate and the grade of the blast furnace charge can be increased, and the production technical index can be optimized.

Description

technical field [0001] The invention relates to the field of sintering in the metallurgical industry, in particular to a mineral material usage method for increasing the consumption and productivity of sintered iron concentrate. Background technique [0002] Sinter is the main charge of blast furnace ironmaking in my country, accounting for more than 70% of the iron charge into the furnace. Due to the inferior quality of iron ore powder, the main raw material for sintering, the grade of sintering ore in iron and steel plants has shown a downward trend in recent years, which has brought adverse effects on the stability and smooth operation of blast furnaces, and is not conducive to reducing the cost of blast furnace ironmaking. [0003] In order to improve the grade of sinter, some production plants began to add high-grade iron concentrate, but the sintering productivity decreased after increasing the amount of iron concentrate, so the ratio of iron concentrate in sinter prod...

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): C22B1/14
Inventor 熊林毛晓明沈红标李建赵晓岩齐伟
Owner BAOSHAN IRON & STEEL CO LTD
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